Document Type : Review Article

Authors

Department of Electrical Engineering, Ahmadu Bello University Zaria, Zaria, Nigeria

Abstract

There is growing commitment to phase-out the conventional fossil-fuel based power stations to decentralized power generation with high share of renewable energy sources that is based on low-emission to meet the various techno-economic, environmental and secure energy requirements. This paradigm shift from conventional generators to the inverter-dominated DGs/RESs, has come with some technical challenges of low inertia, frequency instability, harmonic distortion etc. The challenges require effective and efficient inverter-based power system control for a reliable and stable grid interface. Based on the way inverters functions, it is grouped into three categories: grid-feeding, grid-supporting, and grid-forming. Several control schemes have been proposed for grid-forming inverter; these control schemes are based on the concept of Virtual synchronous machine, Power synchronization control, and Direct power control. This paper presents a comprehensive review on the recent advancements in grid-forming inverter control technologies. This review covers different control techniques that have been successfully implemented for the inverter-based power system to grid interface, benefits and challenges of attaining the estimated 100% non-synchronous power generation. The cornerstone of the survey is to also establish state-of-the-art on the grid-forming inverter and identify future research areas for improving the existing techniques and developing novel ones.

Keywords

  • [1] Yoldaş, Y., et al., Enhancing smart grid with microgrids: Challenges and opportunities. Renewable and Sustainable Energy Reviews, 2017. 72: p. 205-214.
  • [2] Yusuf, S.S., et al., Transmission Line Capacity Enhancement with Unified Power Flow Controller Considering Loadability Analysis. ELEKTRIKA-Journal of Electrical Engineering, 2019. 18(3): p. 8-12.
  • [3] Sampaio, P.G.V. and M.O.A. González, Photovoltaic solar energy: Conceptual framework. Renewable and Sustainable Energy Reviews, 2017. 74: p. 590-601.
  • [4] Anand, S., S.K. Gundlapalli, and B. Fernandes, Transformer-less grid feeding current source inverter for solar photovoltaic system. IEEE Transactions on Industrial Electronics, 2014. 61(10): p. 5334-5344.
  • [5] Yusuf, S.S., et al., Load-ability Analysis during Contingency with Unified Power Flow Controller Using Grey Wolf Optimization Technique. Covenant Journal of Engineering Technology (CJET), 2020. 4(2).
  • [6] Al-Shetwi, A.Q., et al., Grid-connected renewable energy sources: Review of the recent integration requirements and control methods. Journal of Cleaner Production, 2020. 253: p. 119831.
  • [7] Şahin, A.D., Progress and recent trends in wind energy. Progress in energy and combustion science, 2004. 30(5): p. 501-543.
  • [8] Jain, A., J.N. Sakamuri, and N.A. Cutululis, Grid-forming control strategies for black start by offshore wind power plants. Wind Energy Science, 2020. 5(4): p. 1297-1313.
  • [9] Rathore, N.S. and N. Panwar, Renewable energy sources for sustainable development. 2007: New India Publishing.
  • [10] Østergaard, P.A., et al., Sustainable development using renewable energy technology. 2020, Elsevier.
  • [11] Malek, A.B.M.A., M. Hasanuzzaman, and N. Abd Rahim, Prospects, progress, challenges and policies for clean power generation from biomass resources. Clean Technologies and Environmental Policy, 2020. 22(6): p. 1229-1253.
  • [12] Blaabjerg, F., et al., Overview of control and grid synchronization for distributed power generation systems. IEEE Transactions on industrial electronics, 2006. 53(5): p. 1398-1409.
  • [13] Benedek, J., T.-T. Sebestyén, and B. Bartók, Evaluation of renewable energy sources in peripheral areas and renewable energy-based rural development. Renewable and Sustainable Energy Reviews, 2018. 90: p. 516-535.
  • [14] Sinsel, S.R., R.L. Riemke, and V.H. Hoffmann, Challenges and solution technologies for the integration of variable renewable energy sources—a review. renewable energy, 2020. 145: p. 2271-2285.
  • [15] Caduff, I., et al., Reduced-order modeling of inverter-based generation using hybrid singular perturbation. Electric Power Systems Research, 2021. 190: p. 106773.
  • [16] Sansaniwal, S.K., V. Sharma, and J. Mathur, Energy and exergy analyses of various typical solar energy applications: A comprehensive review. Renewable and Sustainable Energy Reviews, 2018. 82: p. 1576-1601.
  • [17] Markovic, U., et al., Impact of inverter-based generation on islanding detection schemes in distribution networks. Electric Power Systems Research, 2021. 190: p. 106610.
  • [18] Hassaine, L., et al., Overview of power inverter topologies and control structures for grid connected photovoltaic systems. Renewable and Sustainable Energy Reviews, 2014. 30: p. 796-807.
  • [19] Hirsch, A., Y. Parag, and J. Guerrero, Microgrids: A review of technologies, key drivers, and outstanding issues. Renewable and Sustainable Energy Reviews, 2018. 90: p. 402-411.
  • [20] Qazi, A., et al., Towards sustainable energy: a systematic review of renewable energy sources, technologies, and public opinions. IEEE Access, 2019. 7: p. 63837-63851.
  • [21] El-Khattam, W., et al., Optimal investment planning for distributed generation in a competitive electricity market. IEEE Transactions on power systems, 2004. 19(3): p. 1674-1684.
  • [22] Hatziargyriou, N., et al., IEEE power and energy magazine, 2007. 5(4): p. 78-94.
  • [23] Ameli, A., et al., A multiobjective particle swarm optimization for sizing and placement of DGs from DG owner's and distribution company's viewpoints. IEEE Transactions on power delivery, 2014. 29(4): p. 1831-1840.
  • [24] Parihar, S.S. and N. Malik, Optimal integration of multi-type DG in RDS based on novel voltage stability index with future load growth. Evolving Systems, 2020: p. 1-15.
  • [25] Cheema, K.M., A comprehensive review of virtual synchronous generator. International Journal of Electrical Power & Energy Systems, 2020. 120: p. 106006.
  • [26] Hartmann, B., I. Vokony, and I. Táczi, Effects of decreasing synchronous inertia on power system dynamics—Overview of recent experiences and marketisation of services. International Transactions on Electrical Energy Systems, 2019. 29(12): p. e12128.
  • [27] Lasseter, R.H., Smart distribution: Coupled microgrids. Proceedings of the IEEE, 2011. 99(6): p. 1074-1082.
  • [28] HassanzadehFard, H. and A. Jalilian, Optimization of DG units in distribution systems for voltage sag minimization considering various load types. Iranian Journal of Science and Technology, Transactions of Electrical Engineering, 2021. 45(2): p. 685-699.
  • [29] Lasseter, R.H. Microgrids. in 2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No. 02CH37309). 2002. IEEE.
  • [30] Ren, L., et al., Enabling resilient distributed power sharing in networked microgrids through software defined networking. Applied Energy, 2018. 210: p. 1251-1265.
  • [31] Han, Y., et al., Review of power sharing, voltage restoration and stabilization techniques in hierarchical controlled DC microgrids. IEEE Access, 2019. 7: p. 149202-149223.
  • [32] Vasquez, J.C., et al., Hierarchical control of intelligent microgrids. IEEE Industrial Electronics Magazine, 2010. 4(4): p. 23-29.
  • [33] Bidram, A. and A. Davoudi, Hierarchical structure of microgrids control system. IEEE Transactions on Smart Grid, 2012. 3(4): p. 1963-1976.
  • [34] Alam, M.N., S. Chakrabarti, and A. Ghosh, Networked microgrids: State-of-the-art and future perspectives. IEEE Transactions on Industrial Informatics, 2018. 15(3): p. 1238-1250.
  • [35] Li, Z., et al., Networked microgrids for enhancing the power system resilience. Proceedings of the IEEE, 2017. 105(7): p. 1289-1310.
  • [36] Shahidehpour, M., et al., Networked microgrids: Exploring the possibilities of the IIT-Bronzeville grid. IEEE Power and Energy Magazine, 2017. 15(4): p. 63-71.
  • [37] Lissandron, S., et al., Experimental validation for impedance-based small-signal stability analysis of single-phase interconnected power systems with grid-feeding inverters. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2015. 4(1): p. 103-115.
  • [38] Groß, D. and F. Dörfler. Projected grid-forming control for current-limiting of power converters. in 2019 57th Annual Allerton Conference on Communication, Control, and Computing (Allerton). 2019. IEEE.
  • [39] Lliuyacc, R., et al., Grid-forming VSC control in four-wire systems with unbalanced nonlinear loads. Electric Power Systems Research, 2017. 152: p. 249-256.
  • [40] Ramasubramanian, D., et al., Operation paradigm of an all converter interfaced generation bulk power system. IET Generation, Transmission & Distribution, 2018. 12(19): p. 4240-4248.
  • [41] Castilla, M., L.G. de Vicuña, and J. Miret, Control of power converters in AC microgrids, in Microgrids design and implementation. 2019, Springer. p. 139-170.
  • [42] Choi, W., et al. Reviews on grid-connected inverter, utility-scaled battery energy storage system, and vehicle-to-grid application-challenges and opportunities. in 2017 IEEE Transportation Electrification Conference and Expo (ITEC). 2017. IEEE.
  • [43] Zhang, D. and J. Fletcher. Operation of autonomous AC microgrid at constant frequency and with reactive power generation from grid-forming, grid-supporting and grid-feeding generators. in TENCON 2018-2018 IEEE Region 10 Conference. 2018. IEEE.
  • [44] Zarei, S.F., et al., Reinforcing fault ride through capability of grid forming voltage source converters using an enhanced voltage control scheme. IEEE Transactions on Power Delivery, 2018. 34(5): p. 1827-1842.
  • [45] Reichert, S., G. Griepentrog, and B. Stickan. Comparison between grid-feeding and grid-supporting inverters regarding power quality. in 2017 IEEE 8th International Symposium on Power Electronics for Distributed Generation Systems (PEDG). 2017. IEEE.
  • [46] Mandrile, F., E. Carpaneto, and R. Bojoi, Grid-Feeding Inverter With Simplified Virtual Synchronous Compensator Providing Grid Services and Grid Support. IEEE Transactions on Industry Applications, 2020. 57(1): p. 559-569.
  • [47] Liu, Q., T. Caldognetto, and S. Buso, Review and comparison of grid-tied inverter controllers in microgrids. IEEE Transactions on Power Electronics, 2019. 35(7): p. 7624-7639.
  • [48] Denis, G., et al., The Migrate project: the challenges of operating a transmission grid with only inverter-based generation. A grid-forming control improvement with transient current-limiting control. IET Renewable Power Generation, 2018. 12(5): p. 523-529.
  • [49] Du, W., et al., Modeling of Grid-Forming and Grid-Following Inverters for Dynamic Simulation of Large-Scale Distribution Systems. IEEE Transactions on Power Delivery, 2020.
  • [50] Matevosyan, J., et al., Grid-forming inverters: Are they the key for high renewable penetration? IEEE Power and Energy magazine, 2019. 17(6): p. 89-98.
  • [51] Beck, H.-P. and R. Hesse. Virtual synchronous machine. in 2007 9th International Conference on Electrical Power Quality and Utilisation. 2007. IEEE.
  • [52] Ierna, R., et al. Effects of VSM convertor control on penetration limits of non-synchronous generation in the GB power system. in 15th Wind Integration Workshop. 2016.
  • [53] Colombino, M., et al., Global phase and magnitude synchronization of coupled oscillators with application to the control of grid-forming power inverters. IEEE Transactions on Automatic Control, 2019. 64(11): p. 4496-4511.
  • [54] Crivellaro, A., et al. Beyond low-inertia systems: Massive integration of grid-forming power converters in transmission grids. in 2020 IEEE Power & Energy Society General Meeting (PESGM). 2020. IEEE.
  • [55] Sundaramoorthy, K., et al., Virtual synchronous machine-controlled grid-connected power electronic converter as a ROCOF control device for power system applications. Electrical Engineering, 2019. 101(3): p. 983-993.
  • [56] Pertl, M., et al., Transient stability improvement: a review and comparison of conventional and renewable-based techniques for preventive and emergency control. Electrical Engineering, 2018. 100(3): p. 1701-1718.
  • [57] Strzelecki, R. and G.S. Zinoviev, Overview of power electronics converters and controls, in Power Electronics in Smart Electrical Energy Networks. 2008, Springer. p. 55-105.
  • [58] Mohan, N., T.M. Undeland, and W.P. Robbins, Power electronics: converters, applications, and design. 2003: John wiley & sons.
  • [59] Zhu, Z. and J. Hu, Electrical machines and powerelectronic systems for highpower wind energy generation applications: Part II–power electronics and control systems. COMPEL-The international journal for computation and mathematics in electrical and electronic engineering, 2013.
  • [60] Kenyon, R.W., et al., Stability and control of power systems with high penetrations of inverter-based resources: An accessible review of current knowledge and open questions. Solar Energy, 2020. 210: p. 149-168.
  • [61] Zhang, G., et al., Power electronics converters: Past, present and future. Renewable and Sustainable Energy Reviews, 2018. 81: p. 2028-2044.
  • [62] Viinamäki, J., A. Kuperman, and T. Suntio, Grid-forming-mode operation of boost-power-stage converter in PV-generator-interfacing applications. Energies, 2017. 10(7): p. 1033.
  • [63] Kroposki, B., et al., Achieving a 100% renewable grid: Operating electric power systems with extremely high levels of variable renewable energy. IEEE Power and energy magazine, 2017. 15(2): p. 61-73.
  • [64] Pattabiraman, D., R. Lasseter, and T. Jahns. Comparison of grid following and grid forming control for a high inverter penetration power system. in 2018 IEEE Power & Energy Society General Meeting (PESGM). 2018. IEEE.
  • [65] Denis, G., et al. Improving robustness against grid stiffness, with internal control of an AC voltage-controlled VSC. in 2016 IEEE Power and Energy Society General Meeting (PESGM). 2016. IEEE.
  • [66] Lasseter, R.H., Z. Chen, and D. Pattabiraman, Grid-forming inverters: A critical asset for the power grid. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019. 8(2): p. 925-935.
  • [67] Hsieh, G.-C. and J.C. Hung, Phase-locked loop techniques. A survey. IEEE Transactions on industrial electronics, 1996. 43(6): p. 609-615.
  • [68] Chung, S.-K., Phase-locked loop for grid-connected three-phase power conversion systems. IEE Proceedings-Electric Power Applications, 2000. 147(3): p. 213-219.
  • [69] Perera B.K., P. Ciufo, and S. Perera. Point of common coupling (PCC) voltage control of a grid-connected solar photovoltaic (PV) system. in IECON 2013-39th Annual Conference of the IEEE Industrial Electronics Society. 2013. IEEE.
  • [70] Liu, J., Y. Miura, and T. Ise, Comparison of dynamic characteristics between virtual synchronous generator and droop control in inverter-based distributed generators. IEEE Transactions on Power Electronics, 2015. 31(5): p. 3600-3611.
  • [71] Pan, D., et al., Transient stability of voltage-source converters with grid-forming control: A design-oriented study. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019. 8(2): p. 1019-1033.
  • [72] Rosso, R., S. Engelken, and M. Liserre, Robust stability investigation of the interactions among grid-forming and grid-following converters. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019. 8(2): p. 991-1003.
  • [73] Adib, A., F. Fateh, and B. Mirafzal. A stabilizer for inverters operating in grid-feeding, grid-supporting and grid-forming modes. in 2019 IEEE Energy Conversion Congress and Exposition (ECCE). 2019. IEEE.
  • [74] Driesen, J. and K. Visscher. Virtual synchronous generators. in 2008 IEEE Power and Energy Society General Meeting-Conversion and Delivery of Electrical Energy in the 21st Century. 2008. IEEE.
  • [75] Elkhatib, M.E., W. Du, and R.H. Lasseter. Evaluation of inverter-based grid frequency support using frequency-watt and grid-forming PV inverters. in 2018 IEEE Power & Energy Society General Meeting (PESGM). 2018. IEEE.
  • [76] Sao, C.K. and P.W. Lehn, Control and power management of converter fed microgrids. IEEE Transactions on Power Systems, 2008. 23(3): p. 1088-1098.
  • [77] Chen, Y., et al., Dynamic properties of the virtual synchronous machine (VISMA). ICREPQ, 2011. 11.
  • [78] Hirase, Y., et al., A gridconnected inverter with virtual synchronous generator model of algebraic type. Electrical Engineering in Japan, 2013. 184(4): p. 10-21.
  • [79] Bouzid, A.M., et al. Structured H∞ design method of PI controller for grid feeding connected voltage source inverter. in 2015 3rd International Conference on Control, Engineering & Information Technology (CEIT). 2015. IEEE.
  • [80] Borrell, A., et al., Collaborative Voltage Unbalance Elimination in Grid-Connected AC Microgrids with Grid-Feeding Inverters. IEEE Transactions on Power Electronics, 2020.
  • [81] Zhong, Q.-C. and G. Weiss, Synchronverters: Inverters that mimic synchronous generators. IEEE transactions on industrial electronics, 2010. 58(4): p. 1259-1267.
  • [82] Zhong, Q.-C., et al., Self-synchronized synchronverters: Inverters without a dedicated synchronization unit. IEEE Transactions on power electronics, 2013. 29(2): p. 617-630.
  • [83] Rocabert, J., et al., Control of power converters in AC microgrids. IEEE transactions on power electronics, 2012. 27(11): p. 4734-4749.
  • [84] Khajehoddin, S.A., M. Karimi-Ghartemani, and M. Ebrahimi, Grid-supporting inverters with improved dynamics. IEEE Transactions on Industrial Electronics, 2018. 66(5): p. 3655-3667.
  • [85] Qoria, T., et al. Tuning of cascaded controllers for robust grid-forming voltage source converter. in 2018 Power Systems Computation Conference (PSCC). 2018. IEEE.
  • [86] D’Arco, S., J.A. Suul, and O.B. Fosso, A Virtual Synchronous Machine implementation for distributed control of power converters in SmartGrids. Electric Power Systems Research, 2015. 122: p. 180-197.
  • [87] Sakimoto, K., Y. Miura, and T. Ise. Stabilization of a power system with a distributed generator by a Virtual Synchronous Generator function. in 8th International Conference on Power Electronics - ECCE Asia. 2011.
  • [88] Arco, S.D. and J.A. Suul. Virtual synchronous machines — Classification of implementations and analysis of equivalence to droop controllers for microgrids. in 2013 IEEE Grenoble Conference. 2013.
  • [89] Almasalma, H., S. Claeys, and G. Deconinck, Peer-to-peer-based integrated grid voltage support function for smart photovoltaic inverters. Applied Energy, 2019. 239: p. 1037-1048.
  • [90] Zubiaga, M., et al., Power Capability Boundaries for an Inverter Providing Multiple Grid Support Services. Energies, 2020. 13(17): p. 4314.
  • [91] Lammert, G., et al. Dynamic grid support in low voltage grids—fault ride-through and reactive power/voltage support during grid disturbances. in 2014 Power Systems Computation Conference. 2014. IEEE.
  • [92] European Center for Power Electronics, E., European Power Electronics and Drives Association, EPE, Position Paper on Energy Efficiency – The Role of Power Electronics. Available at: http://www.ecpe.org/securedl/0/1391290694/35ad20b5395221115c886f006df4d0f595ed7174/fileadmin/user upload/Public Relations/ECPEPublications/ECPEPosition Paper Energy Efficiency.pdf, 2017.
  • [93] Bevrani, H. and T. Hiyama, Intelligent automatic generation control. 2011: CRC press New York.
  • [94] Poolla, B.K., D. Groß, and F. Dörfler, Placement and implementation of grid-forming and grid-following virtual inertia and fast frequency response. IEEE Transactions on Power Systems, 2019. 34(4): p. 3035-3046.
  • [95] Unruh, P., et al., Overview on grid-forming inverter control methods. Energies, 2020. 13(10): p. 2589.
  • [96] Serban, I., A control strategy for microgrids: Seamless transfer based on a leading inverter with supercapacitor energy storage system. Applied Energy, 2018. 221: p. 490-507.
  • [97] Jurasz, J., et al., A review on the complementarity of renewable energy sources: Concept, metrics, application and future research directions. Solar Energy, 2020. 195: p. 703-724.
  • [98] Adaramola, M.S., Viability of grid-connected solar PV energy system in Jos, Nigeria. International Journal of Electrical Power & Energy Systems, 2014. 61: p. 64-69.
  • [99] Awal, M., et al., Selective harmonic current rejection for virtual oscillator controlled grid-forming voltage source converters. IEEE Transactions on Power Electronics, 2020. 35(8): p. 8805-8818.
  • [100] Rokrok, E., et al. Effect of using PLL-based grid-forming control on active power dynamics under various SCR. in IECON 2019-45th Annual Conference of the IEEE Industrial Electronics Society. 2019. IEEE.
  • [101] Yazdani, S., et al., Advanced current-limiting and power-sharing control in a PV-based grid-forming inverter under unbalanced grid conditions. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019. 8(2): p. 1084-1096.
  • [102] Fang, J., H. Deng, and S.M. Goetz, Grid impedance estimation through grid-forming power converters. IEEE Transactions on Power Electronics, 2020. 36(2): p. 2094-2104.
  • [103] Gkountaras, A., S. Dieckerhoff, and T. Sezi. Evaluation of current limiting methods for grid forming inverters in medium voltage microgrids. in 2015 IEEE Energy Conversion Congress and Exposition (ECCE). 2015. IEEE.
  • [104] Mahamedi, B. and J.E. Fletcher, The equivalent models of grid-forming inverters in the sequence domain for the steady-state analysis of power systems. IEEE Transactions on Power Systems, 2020. 35(4): p. 2876-2887.
  • [105] Jiang, Y., et al. Grid-forming frequency shaping control for low-inertia power systems. in 2021 American Control Conference (ACC). 2021. IEEE.
  • [106] Korai, A.W., et al., Modelling and Simulation of Wind Turbines with Grid Forming Direct Voltage Control and Black-Start Capability, in Modelling and Simulation of Power Electronic Converter Dominated Power Systems in PowerFactory. 2021, Springer. p. 245-268.
  • [107] Singh, M., L.A. Lopes, and N.A. Ninad, Grid forming Battery Energy Storage System (BESS) for a highly unbalanced hybrid mini-grid. Electric Power Systems Research, 2015. 127: p. 126-133.
  • [108] Miveh, M.R., et al., An Improved Control Strategy for a Four-Leg Grid-Forming Power Converter under Unbalanced Load Conditions. Advances in Power Electronics, 2016.
  • [109] Li, Z., et al., Control of a Grid-Forming Inverter Based on Sliding-Mode and Mixed ${H_2}/{H_\infty} $ Control. IEEE Transactions on Industrial Electronics, 2016. 64(5): p. 3862-3872.
  • [110] Serban, I. and C.P. Ion, Microgrid control based on a grid-forming inverter operating as virtual synchronous generator with enhanced dynamic response capability. International Journal of Electrical Power & Energy Systems, 2017. 89: p. 94-105.
  • [111] Arghir, C., T. Jouini, and F. Dörfler, Grid-forming control for power converters based on matching of synchronous machines. Automatica, 2018. 95: p. 273-282.
  • [112] Markovic, U., et al. Partial grid forming concept for 100% inverter-based transmission systems. in 2018 IEEE Power & Energy Society General Meeting (PESGM). 2018. IEEE.
  • [113] Qoria, T., et al., Direct AC voltage control for grid-forming inverters. Journal of Power Electronics, 2019. 20(1): p. 198-211.
  • [114] Yu, H., et al. Passivity-oriented discrete-time voltage controller design for grid-forming inverters. in 2019 IEEE Energy Conversion Congress and Exposition (ECCE). 2019. IEEE.
  • [115] Hart, P.J., R.H. Lasseter, and T.M. Jahns, Coherency identification and aggregation in grid-forming droop-controlled inverter networks. IEEE Transactions on Industry Applications, 2019. 55(3): p. 2219-2231.
  • [116] Huang, X., et al., Decentralized control of multi-parallel grid-forming DGs in islanded microgrids for enhanced transient performance. IEEE Access, 2019. 7: p. 17958-17968.
  • [117] Oue, K., et al. Stability Analysis of Grid-Forming Inverter in DQ Frequency Domain. in 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL). 2019. IEEE.
  • [118] Watson, J., et al. Stability of power networks with grid-forming converters. in 2019 IEEE Milan PowerTech. 2019. IEEE.
  • [119] Quan, X., et al., Photovoltaic synchronous generator: Architecture and control strategy for a grid-forming PV energy system. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019. 8(2): p. 936-948.
  • [120] Khefifi, N., et al., Control of grid forming inverter based on robust IDA-PBC for power quality enhancement. Sustainable Energy, Grids and Networks, 2019. 20: p. 100276.
  • [121] Tayyebi, A., A. Anta, and F. Dörfler, Hybrid angle control and almost global stability of grid-forming power converters. arXiv preprint arXiv:2008.07661, 2020.
  • [122] Rosso, R., S. Engelken, and M. Liserre. Current limitation strategy for grid-forming converters under symmetrical and asymmetrical grid faults. in 2020 IEEE Energy Conversion Congress and Exposition (ECCE). 2020. IEEE.
  • [123] Antunes, H.M.A., et al., A fault-tolerant grid-forming converter applied to AC microgrids. International Journal of Electrical Power & Energy Systems, 2020. 121: p. 106072.
  • [124] Qoria, T., et al., Current limiting algorithms and transient stability analysis of grid-forming VSCs. Electric Power Systems Research, 2020. 189: p. 106726.
  • [125] Rokrok, E., et al., Classification and dynamic assessment of droop-based grid-forming control schemes: Application in HVDC systems. Electric Power Systems Research, 2020. 189: p. 106765.
  • [126] Singh, A.K., et al., A Comprehensive Review on Active and Reactive Power Control of Grid Connected Converters. Innovations in Cyber Physical Systems, 2021: p. 659-666.
  • [127] Sangwongwanich, A., J. He, and Y. Pan, Advanced power control of photovoltaic systems, in Control of Power Electronic Converters and Systems. 2021, Elsevier. p. 447-469.
  • [128] Mohammed, O., et al., Virtual synchronous generator: an overview. Nigerian Journal of Technology, 2019. 38(1): p. 153-164.
  • [129] Tamrakar, U., et al. Improving transient stability of photovoltaic-hydro microgrids using virtual synchronous machines. in 2015 IEEE Eindhoven PowerTech. 2015.
  • [130] Bevrani, H., T. Ise, and Y. Miura, Virtual synchronous generators: A survey and new perspectives. International Journal of Electrical Power & Energy Systems, 2014. 54: p. 244-254.
  • [131] Chen, Y., et al. Investigation of the virtual synchronous machine in the island mode. in 2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe). 2012. IEEE.
  • [132] Manaz, M.M. and C.-N. Lu, Optimal Switched Mode Control to Synthesize Dynamic Frequency Response from Virtual Synchronous Machine in Islanded Microgrid Operation. IFAC-PapersOnLine, 2018. 51(28): p. 610-615.
  • [133] D'Arco, S. and J.A. Suul, Equivalence of virtual synchronous machines and frequency-droops for converter-based microgrids. IEEE Transactions on Smart Grid, 2013. 5(1): p. 394-395.
  • [134] Li, D., et al., A self-adaptive inertia and damping combination control of VSG to support frequency stability. IEEE Transactions on Energy Conversion, 2016. 32(1): p. 397-398.
  • [135] Wang, F., et al., An adaptive control strategy for virtual synchronous generator. IEEE Transactions on Industry Applications, 2018. 54(5): p. 5124-5133.
  • [136] Van Wesenbeeck, M., et al. Grid tied converter with virtual kinetic storage. in 2009 IEEE Bucharest PowerTech. 2009. IEEE.
  • [137] Guan, M., et al., Synchronous generator emulation control strategy for voltage source converter (VSC) stations. IEEE Transactions on Power Systems, 2015. 30(6): p. 3093-3101.
  • [138] Paolone, M., et al., Fundamentals of power systems modelling in the presence of converter-interfaced generation. Electric Power Systems Research, 2020. 189: p. 106811.
  • [139] Alipoor, J., Y. Miura, and T. Ise, Power system stabilization using virtual synchronous generator with alternating moment of inertia. IEEE journal of Emerging and selected topics in power electronics, 2014. 3(2): p. 451-458.
  • [140] Lopes, L.A., Self-tuning virtual synchronous machine: A control strategy for energy storage systems to support dynamic frequency control. IEEE Transactions on Energy Conversion, 2014. 29(4): p. 833-840.
  • [141] D’Arco, S., G. Guidi, and J.A. Suul. Operation of a modular multilevel converter controlled as a virtual synchronous machine. in 2018 International Power Electronics Conference (IPEC-Niigata 2018-ECCE Asia). 2018. IEEE.
  • [142] Magdy, G., et al., Renewable power systems dynamic security using a new coordination of frequency control strategy based on virtual synchronous generator and digital frequency protection. International Journal of Electrical Power & Energy Systems, 2019. 109: p. 351-368.
  • [143] D'Arco, S., J.A. Suul, and O.B. Fosso, Automatic tuning of cascaded controllers for power converters using eigenvalue parametric sensitivities. IEEE Transactions on Industry Applications, 2014. 51(2): p. 1743-1753.
  • [144] Liang, X. and C.A.B. Karim. Virtual synchronous machine method in renewable energy integration. in 2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC). 2016. IEEE.
  • [145] Kezunovic, M., et al., The Big Picture: Smart Research for Large-Scale Integrated Smart Grid Solutions. IEEE Power and Energy Magazine, 2012. 10(4): p. 22-34.
  • [146] Cvetkovic, I., et al. Modeling of a virtual synchronous machine-based grid-interface converter for renewable energy systems integration. in 2014 IEEE 15th Workshop on Control and Modeling for Power Electronics (COMPEL). 2014. IEEE.
  • [147] Alsiraji, H.A. and J.M. Guerrero, A new hybrid virtual synchronous machine control structure combined with voltage source converters in islanded ac microgrids. Electric Power Systems Research, 2021. 193: p. 106976.
  • [148] Alaboudy, A.K., H.H. Zeineldin, and J. Kirtley, Microgrid stability characterization subsequent to fault-triggered islanding incidents. IEEE transactions on power delivery, 2012. 27(2): p. 658-669.
  • [149] Qoria, T., et al., A PLL-free grid-forming control with decoupled functionalities for high-power transmission system applications. IEEE Access, 2020. 8: p. 197363-197378.
  • [150] Karimi, A., et al., Inertia response improvement in AC microgrids: A fuzzy-based virtual synchronous generator control. IEEE Transactions on Power Electronics, 2019. 35(4): p. 4321-4331.
  • [151] Perez, F., et al., Adaptive Variable Synthetic Inertia from a Virtual Synchronous Machine Providing Ancillary Services for an AC MicroGrid. IFAC-PapersOnLine, 2020. 53(2): p. 12968-12973.
  • [152] Zhang, W., et al., Frequency support properties of the synchronous power control for grid-connected converters. IEEE Transactions on Industry Applications, 2019. 55(5): p. 5178-5189.
  • [153] Li, W., et al. Frequency Control Strategy of Grid-connected PV System Using Virtual Synchronous Generator. in 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia). 2019.
  • [154] Alsiraji, H.A. and R. El-Shatshat, Comprehensive assessment of virtual synchronous machine based voltage source converter controllers. IET Generation, Transmission & Distribution, 2017. 11(7): p. 1762-1769.
  • [155] Ise, T. and H. Bevrani, Virtual synchronous generators and their applications in microgrids, in Integration of Distributed Energy Resources in Power Systems. 2016, Elsevier. p. 282-294.
  • [156] Tamrakar, U., et al., Virtual inertia: Current trends and future directions. Applied Sciences, 2017. 7(7): p. 654.
  • [157] Wang, S., et al., On inertial dynamics of virtual-synchronous-controlled DFIG-based wind turbines. IEEE Transactions on Energy Conversion, 2015. 30(4): p. 1691-1702.
  • [158] Wu, W., et al., A virtual inertia control strategy for DC microgrids analogized with virtual synchronous machines. IEEE Transactions on Industrial Electronics, 2016. 64(7): p. 6005-6016.
  • [159] Gonzalez-Longatt, F., E. Chikuni, and E. Rashayi. Effects of the Synthetic Inertia from wind power on the total system inertia after a frequency disturbance. in 2013 IEEE International Conference on Industrial Technology (ICIT). 2013.
  • [160] Zhong, Q.-C., et al., Improved synchronverters with bounded frequency and voltage for smart grid integration. IEEE Transactions on Smart Grid, 2016. 9(2): p. 786-796.
  • [161] Natarajan, V. and G. Weiss, Synchronverters with better stability due to virtual inductors, virtual capacitors, and anti-windup. IEEE Transactions on Industrial Electronics, 2017. 64(7): p. 5994-6004.
  • [162] Brown, E. and G. Weiss. Using synchronverters for power grid stabilization. in 2014 IEEE 28th Convention of Electrical & Electronics Engineers in Israel (IEEEI). 2014. IEEE.
  • [163] Sakimoto, K., Y. Miura, and T. Ise, Stabilization of a Power System Including InverterType Distributed Generators by a Virtual Synchronous Generator. Electrical Engineering in Japan, 2014. 187(3): p. 7-17.
  • [164] Sakimoto, K., Y. Miura, and T. Ise, Stabilization of a power system including inverter type distributed generators by the virtual synchronous generator. IEEJ Transactions on Power and Energy, 2012. 132(4): p. 341-349.
  • [165] Zhang, W., et al., Synchronous Power Controller With Flexible Droop Characteristics for Renewable Power Generation Systems. IEEE Transactions on Sustainable Energy, 2016. 7(4): p. 1572-1582.
  • [166] Chen, Y., et al. Improving the grid power quality using virtual synchronous machines. in 2011 international conference on power engineering, energy and electrical drives. 2011. IEEE.
  • [167] Hesse, R., D. Turschner, and H.-P. Beck. Micro grid stabilization using the virtual synchronous machine (VISMA). in Proceedings of the International Conference on Renewable Energies and Power Quality (ICREPQ’09), Valencia, Spain. 2009.
  • [168] Muftau, B., M. Fazeli, and A. Egwebe, Stability analysis of a PMSG based Virtual Synchronous Machine. Electric Power Systems Research, 2020. 180: p. 106170.
  • [169] Lu, L. and N.A. Cutululis. Virtual synchronous machine control for wind turbines: a review. in Journal of Physics: Conference Series. 2019. IOP Publishing.
  • [170] Ma, Y., et al., Virtual synchronous generator control of full converter wind turbines with short-term energy storage. IEEE Transactions on Industrial Electronics, 2017. 64(11): p. 8821-8831.
  • [171] Xiaolin, Z., et al. Hardware in loop simulation test of photovoltaic virtual synchronous generator. in 2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2). 2018. IEEE.
  • [172] Niino, S., et al. Virtual Synchronous Generator Control of Power System Including LargeWind Farm by using HVDC Interconnection Line. in 2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC). 2019. IEEE.
  • [173] Nakamura, A., et al. Stability Enhancement of Power System including Wind Farm by Voltage Control and Virtual Synchronous Generator Control. in 2021 2nd International Conference on Robotics, Electrical and Signal Processing Techniques (ICREST). 2021. IEEE.
  • [174] Linn, Z., Y. Miura, and T. Ise, Power system stabilization control by HVDC with SMES using virtual synchronous generator. IEEJ Journal of Industry Applications, 2012. 1(2): p. 102-110.
  • [175] Yan, X., et al., Research on distributed PV storage virtual synchronous generator system and its static frequency characteristic analysis. Applied Sciences, 2018. 8(4): p. 532.
  • [176] Shi, R., et al., Self-tuning virtual synchronous generator control for improving frequency stability in autonomous photovoltaic-diesel microgrids. Journal of Modern Power Systems and Clean Energy, 2018. 6(3): p. 482-494.
  • [177] Chen, J., et al., 100% Converter-Interfaced generation using virtual synchronous generator control: A case study based on the irish system. Electric Power Systems Research, 2020. 187: p. 106475.
  • [178] Rehman, H.U., et al., An advanced virtual synchronous generator control technique for frequency regulation of grid-connected PV system. International Journal of Electrical Power & Energy Systems, 2021. 125: p. 106440.
  • [179] Khatibi, M., S. Ahmed, and N. Kang, Multi-Mode Operation and Control of a Z-Source Virtual Synchronous Generator in PV Systems. IEEE Access, 2021. 9: p. 53003-53012.
  • [180] Alawasa, K.M. and Y.A.-R.I. Mohamed, Impedance and damping characteristics of grid-connected VSCs with power synchronization control strategy. IEEE Transactions on Power Systems, 2014. 30(2): p. 952-961.
  • [181] Harnefors, L., et al., Robust Analytic Design of Power-Synchronization Control. IEEE Transactions on Industrial Electronics, 2019. 66(8): p. 5810-5819.
  • [182] Zhang, L., L. Harnefors, and H.-P. Nee, Interconnection of two very weak AC systems by VSC-HVDC links using power-synchronization control. IEEE transactions on power systems, 2010. 26(1): p. 344-355.
  • [183] Yazdani, S., et al., Internal Model Power Synchronization Control of a PV-Based Voltage-Source Converter in Weak-Grid and Islanded Conditions. IEEE Transactions on Sustainable Energy, 2020. 12(2): p. 1360-1371.
  • [184] Remon, D., et al. An active power synchronization control loop for grid-connected converters. in 2014 IEEE PES General Meeting| Conference & Exposition. 2014. IEEE.
  • [185] Zhang, L., L. Harnefors, and H.-P. Nee, Power-synchronization control of grid-connected voltage-source converters. IEEE Transactions on Power systems, 2010. 25(2): p. 809-820.
  • [186] Khazaei, J., Z. Miao, and L. Piyasinghe, Impedance-model-based MIMO analysis of power synchronization control. Electric Power Systems Research, 2018. 154: p. 341-351.
  • [187] Zhang, L., H.-P. Nee, and L. Harnefors, Analysis of stability limitations of a VSC-HVDC link using power-synchronization control. IEEE Transactions on Power Systems, 2010. 26(3): p. 1326-1337.
  • [188] Wu, H. and X. Wang, Design-oriented transient stability analysis of grid-connected converters with power synchronization control. IEEE Transactions on Industrial Electronics, 2018. 66(8): p. 6473-6482.
  • [189] Sun, R., et al., Transient Synchronization Stability Control for LVRT with Power Angle Estimation. IEEE Transactions on Power Electronics, 2021.
  • [190] Zhang, L., L. Harnefors, and H.-P. Nee, Modeling and control of VSC-HVDC links connected to island systems. IEEE Transactions on Power Systems, 2010. 26(2): p. 783-793.
  • [191] Mitra, P., L. Zhang, and L. Harnefors, Offshore wind integration to a weak grid by VSC-HVDC links using power-synchronization control: A case study. IEEE Transactions on Power Delivery, 2013. 29(1): p. 453-461.
  • [192] Nanou, S.I. and S.A. Papathanassiou, Grid code compatibility of VSC-HVDC connected offshore wind turbines employing power synchronization control. IEEE Transactions on Power Systems, 2016. 31(6): p. 5042-5050.
  • [193] Radwan, A.A.A. and Y.A.-R.I. Mohamed, Power synchronization control for grid-connected current-source inverter-based photovoltaic systems. IEEE Transactions on Energy Conversion, 2016. 31(3): p. 1023-1036.
  • [194] Morris, J.F., K.H. Ahmed, and A. Egea-Àlvarez, Power-synchronization control for ultra-weak AC networks: comprehensive stability and dynamic performance assessment. IEEE Open Journal of the Industrial Electronics Society, 2021. 2: p. 441-450.
  • [195] Yap, K.Y., J.M.-Y. Lim, and C.R. Sarimuthu, A novel adaptive virtual inertia control strategy under varying irradiance and temperature in grid-connected solar power system. International Journal of Electrical Power & Energy Systems, 2021. 132: p. 107180.
  • [196] Noguchi, T., et al., Direct power control of PWM converter without power-source voltage sensors. IEEE transactions on industry applications, 1998. 34(3): p. 473-479.
  • [197] Escobar, G., et al., Analysis and design of direct power control (DPC) for a three phase synchronous rectifier via output regulation subspaces. IEEE Transactions on Power Electronics, 2003. 18(3): p. 823-830.
  • [198] Zhang, Y., et al., Performance improvement of direct power control of PWM rectifier with simple calculation. IEEE Transactions on Power Electronics, 2012. 28(7): p. 3428-3437.
  • [199] Hadji, K., et al. Predictive Direct Power Control of a Three-Phase Three-Level NPC PWM Rectifier based on Space Vector Modulation. in 2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE). 2021. IEEE.
  • [200] Bharath, C. and S. Mohapatro. Modified Direct Torque Control Scheme for Induction Machine Using Space Vector Modulation. in Proceedings of Symposium on Power Electronic and Renewable Energy Systems Control. 2021. Springer.
  • [201] Habetler, T.G., et al., Direct torque control of induction machines using space vector modulation. IEEE Transactions on industry applications, 1992. 28(5): p. 1045-1053.
  • [202] Kang, J.-W. and S.-K. Sul, Analysis and prediction of inverter switching frequency in direct torque control of induction machine based on hysteresis bands and machine parameters. IEEE Transactions on Industrial Electronics, 2001. 48(3): p. 545-553.
  • [203] Djagarov, N., et al. Adaptive controller for induction machine direct torque control. in 2021 17th Conference on Electrical Machines, Drives and Power Systems (ELMA). 2021. IEEE.
  • [204] Yan, S., et al., A Review on Direct Power Control of Pulse-Width Modulation Converters. IEEE Transactions on Power Electronics, 2021.
  • [205] Eskandari-Torbati, H. and D.A. Khaburi. Direct power control of three phase pwm rectifier using model predictive control and svm switching. in 4th Annual International Power Electronics, Drive Systems and Technologies Conference. 2013. IEEE.
  • [206] Malinowsk, M. and M.P. Kazmierkowski. Direct power control of three-phase PWM rectifier using space vector modulation-simulation study. in Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on. 2002. IEEE.
  • [207] Restrepo, J.A., et al., Optimum space vector computation technique for direct power control. IEEE Transactions on Power Electronics, 2009. 24(6): p. 1637-1645.
  • [208] Mazouz, F., et al. Direct power control of DFIG by sliding mode control and space vector modulation. in 2018 7th International Conference on Systems and Control (ICSC). 2018. IEEE.
  • [209] Benbouhenni, H., Z. Boudjema, and A. Belaidi, Direct power control with NSTSM algorithm for DFIG using SVPWM technique. Iranian Journal of Electrical and Electronic Engineering, 2021. 17(1): p. 1518-1518.
  • [210] Bouafia, A., J.-P. Gaubert, and F. Krim, Predictive direct power control of three-phase pulsewidth modulation (PWM) rectifier using space-vector modulation (SVM). IEEE transactions on power electronics, 2009. 25(1): p. 228-236.
  • [211] Zhang, Y., Y. Peng, and C. Qu, Model predictive control and direct power control for PWM rectifiers with active power ripple minimization. IEEE Transactions on Industry Applications, 2016. 52(6): p. 4909-4918.
  • [212] Kwak, S., U.-C. Moon, and J.-C. Park, Predictive-control-based direct power control with an adaptive parameter identification technique for improved AFE performance. IEEE Transactions on Power Electronics, 2014. 29(11): p. 6178-6187.
  • [213] Hu, J., et al., Model predictive control of microgrids–An overview. Renewable and Sustainable Energy Reviews, 2021. 136: p. 110422.
  • [214] Yang, G., et al., Model predictive direct power control based on improved T-type grid-connected inverter. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2018. 7(1): p. 252-260.
  • [215] Bouafia, A., F. Krim, and J.-P. Gaubert. Direct power control of three-phase PWM rectifier based on fuzzy logic controller. in 2008 IEEE International Symposium on Industrial Electronics. 2008. IEEE.
  • [216] Kadem, M., et al., Fuzzy logic-based instantaneous power ripple minimization for direct power control applied in a shunt active power filter. Electrical Engineering, 2020. 102(3): p. 1327-1338.
  • [217] Bouafia, A., F. Krim, and J.-P. Gaubert, Fuzzy-logic-based switching state selection for direct power control of three-phase PWM rectifier. IEEE transactions on industrial electronics, 2009. 56(6): p. 1984-1992.
  • [218] Roy, T.K., et al. Direct power controller design for improving FRT capabilities of dfig-based wind farms using a nonlinear backstepping approach. in 2018 8th International Conference on Power and Energy Systems (ICPES). 2018. IEEE.
  • [219] Sun, D., X. Wang, and Y. Fang, Backstepping direct power control without phaselocked loop of AC/DC converter under both balanced and unbalanced grid conditions. IET Power Electronics, 2016. 9(8): p. 1614-1624.
  • [220] Wai, R.-J. and Y. Yang, Design of backstepping direct power control for three-phase PWM rectifier. IEEE Transactions on Industry Applications, 2019. 55(3): p. 3160-3173.
  • [221] Choi, H.-W., et al., Deadbeat predictive direct power control of interleaved buck converter-based fast battery chargers for electric vehicles. Journal of Power Electronics, 2020. 20(5): p. 1162-1171.
  • [222] Ramaiah, S., N. Lakshminarasamma, and M.K. Mishra. An Improved Deadbeat Direct Power Control for Grid Connected Inverter System. in 2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG). 2021. IEEE.
  • [223] Jin, S., et al., Deadbeat direct power control for dual threephase PMSG used in wind turbines. IET Renewable Power Generation, 2021.
  • [224] Cheng, C., et al., Dead-beat predictive direct power control of voltage source inverters with optimised switching patterns. IET Power Electronics, 2017. 10(12): p. 1438-1451.
  • [225] Lin, H., et al., Integral sliding-mode control-based direct power control for three-level NPC converters. Energies, 2020. 13(1): p. 227.
  • [226] Tiwary, N., et al., Sliding mode and current observerbased direct power control of dual active bridge converter with constant power load. International Transactions on Electrical Energy Systems, 2021. 31(5): p. e12879.
  • [227] Gui, Y., et al., Improved direct power control for grid-connected voltage source converters. IEEE Transactions on Industrial Electronics, 2018. 65(10): p. 8041-8051.
  • [228] Verveckken, J., et al., Direct power control of series converter of unified power-flow controller with three-level neutral point clamped converter. IEEE Transactions on Power Delivery, 2012. 27(4): p. 1772-1782.
  • [229] Serpa, L., et al. Five-level virtual-flux direct power control for the active neutral-point clamped multilevel inverter. in 2008 IEEE Power Electronics Specialists Conference. 2008. IEEE.
  • [230] Portillo, R., et al., Model based adaptive direct power control for three-level NPC converters. IEEE Transactions on Industrial Informatics, 2012. 9(2): p. 1148-1157.
  • [231] Datta, R. and V. Ranganathan, Direct power control of grid-connected wound rotor induction machine without rotor position sensors. IEEE Transactions on Power Electronics, 2001. 16(3): p. 390-399.
  • [232] Amrane, F., B. Francois, and A. Chaiba, Experimental investigation of efficient and simple wind-turbine based on DFIG-direct power control using LCL-filter for stand-alone mode. ISA transactions, 2021.
  • [233] Beniss, M.A., et al., Performance analysis and enhancement of direct power control of DFIG based wind system. International Journal of Power Electronics and Drive Systems, 2021. 12(2): p. 1034.
  • [234] Mazouz, F., et al., Adaptive direct power control for double fed induction generator used in wind turbine. International Journal of Electrical Power & Energy Systems, 2020. 114: p. 105395.
  • [235] Li, S., et al., Direct power control of DFIG wind turbine systems based on an intelligent proportional-integral sliding mode control. ISA transactions, 2016. 64: p. 431-439.
  • [236] Barra, K. and D. Rahem, Predictive direct power control for photovoltaic grid connected system: An approach based on multilevel converters. Energy Conversion and Management, 2014. 78: p. 825-834.
  • [237] Ouchen, S., et al., Experimental validation of sliding mode-predictive direct power control of a grid connected photovoltaic system, feeding a nonlinear load. Solar Energy, 2016. 137: p. 328-336.
  • [238] Sarra, M., O. Aissa, and J.-P. Gaubert, An investigation of solar active power filter based on direct power control for voltage quality and energy transfer in grid-tied photovoltaic system under unbalanced and distorted conditions. Journal of Engineering Research, 2021. 9(3B).
  • [239] Eloy-Garcia, J., S. Arnaltes, and J. Rodriguez-Amenedo, Direct power control of voltage source inverters with unbalanced grid voltages. IET Power Electronics, 2008. 1(3): p. 395-407.
  • [240] Chandorkar, M.C., D.M. Divan, and R. Adapa, Control of parallel connected inverters in standalone AC supply systems. IEEE transactions on industry applications, 1993. 29(1): p. 136-143.
  • [241] Majumder, R., et al., Improvement of stability and load sharing in an autonomous microgrid using supplementary droop control loop. IEEE transactions on power systems, 2009. 25(2): p. 796-808.
  • [242] De Brabandere, K., et al., A voltage and frequency droop control method for parallel inverters. IEEE Transactions on power electronics, 2007. 22(4): p. 1107-1115.
  • [243] Bhatt, N., R. Sondhi, and S. Arora, Droop Control Strategies for Microgrid: A Review. Advances in Renewable Energy and Electric Vehicles, 2022: p. 149-162.
  • [244] Kulkarni, S.V. and D.N. Gaonkar, Improved droop control strategy for parallel connected power electronic converter based distributed generation sources in an Islanded Microgrid. Electric Power Systems Research, 2021. 201: p. 107531.
  • [245] Dawoud, N.M., T.F. Megahed, and S.S. Kaddah, Enhancing the performance of multi-microgrid with high penetration of renewable energy using modified droop control. Electric Power Systems Research, 2021. 201: p. 107538.
  • [246] Chen, J., et al., A Virtual Complex Impedance Based $ P-\dot {V} $ Droop Method for Parallel-Connected Inverters in Low-Voltage AC Microgrids. IEEE Transactions on Industrial Informatics, 2020. 17(3): p. 1763-1773.
  • [247] Vandoorn, T., et al., Review of primary control strategies for islanded microgrids with power-electronic interfaces. Renewable and Sustainable Energy Reviews, 2013. 19: p. 613-628.
  • [248] Awal, M. and I. Husain, Unified Virtual Oscillator Control for Grid-Forming and Grid-Following Converters. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020.
  • [249] Seo, G.-S., et al. Dispatchable virtual oscillator control for decentralized inverter-dominated power systems: Analysis and experiments. in 2019 IEEE Applied Power Electronics Conference and Exposition (APEC). 2019. IEEE.
  • [250] Awal, M., et al. A Grid-Forming Multi-Port Converter using Unified Virtual Oscillator Control. in 2020 IEEE Energy Conversion Congress and Exposition (ECCE). 2020. IEEE.
  • [251] Lu, M., et al. A pre-synchronization strategy for grid-forming virtual oscillator controlled inverters. in 2020 IEEE Energy Conversion Congress and Exposition (ECCE). 2020. IEEE.
  • [252] Quedan, A., D. Ramasubramanian, and E. Farantatos. Virtual Oscillator Controlled Grid Forming Inverters Modelling and Testing in Phasor Domain. in 2021 IEEE 12th Energy Conversion Congress & Exposition-Asia (ECCE-Asia). 2021. IEEE.
  • [253] Ajala, O., et al., Model Reduction for Inverters with Current Limiting and Dispatchable Virtual Oscillator Control. IEEE Transactions on Energy Conversion, 2021.
  • [254] Groß, D., et al., The effect of transmission-line dynamics on grid-forming dispatchable virtual oscillator control. IEEE Transactions on Control of Network Systems, 2019. 6(3): p. 1148-1160.
  • [255] Kammer, C. and A. Karimi, Decentralized and distributed transient control for microgrids. IEEE Transactions on Control Systems Technology, 2017. 27(1): p. 311-322.
  • [256] Madani, S.S., C. Kammer, and A. Karimi, Data-driven distributed combined primary and secondary control in microgrids. IEEE Transactions on Control Systems Technology, 2020. 29(3): p. 1340-1347.
  • [257] Yu, L., R. Li, and L. Xu, Distributed PLL-based control of offshore wind turbines connected with diode-rectifier-based HVDC systems. IEEE Transactions on Power Delivery, 2017. 33(3): p. 1328-1336.
  • [258] Arasteh, A., L. Zeni, and N.A. Cutululis, Fault ride through capability of grid forming wind turbines: A comparison of three control schemes. IET Renewable Power Generation, 2022.
  • [259] Luo, S., et al., A New Virtual Oscillator Control Without Third-Harmonics Injection For DC/AC Inverter. IEEE Transactions on Power Electronics, 2021. 36(9): p. 10879-10888.
  • [260] Dadinaboina, A.K.R., et al., Improved power quality with an adaptive gridforming inverter control scheme in solar PV system. International Transactions on Electrical Energy Systems, 2021: p. e13009.
  • [261] Abid, A., et al., Dynamic economic dispatch incorporating photovoltaic and wind generation using hybrid FPA with SQP. IETE Journal of Research, 2020. 66(2): p. 204-213.
  • [262] Li, Y., et al., Impedance Circuit Model of Grid-Forming Inverter: Visualizing Control Algorithms as Circuit Elements. IEEE Transactions on Power Electronics, 2020. 36(3): p. 3377-3395.
  • [263] Markovic, U., et al., LQR-based adaptive virtual synchronous machine for power systems with high inverter penetration. IEEE Transactions on Sustainable Energy, 2018. 10(3): p. 1501-1512.
  • [264] Hernández, J.C., P.G. Bueno, and F. Sanchez-Sutil, Enhanced utility-scale photovoltaic units with frequency support functions and dynamic grid support for transmission systems. IET Renewable Power Generation, 2017. 11(3): p. 361-372.
  • [265] Zhong, Q.-C., et al., Grid-friendly wind power systems based on the synchronverter technology. Energy Conversion and Management, 2015. 89: p. 719-726.
  • [266] Nazir, M.S., et al., Impacts of renewable energy atlas: Reaping the benefits of renewables and biodiversity threats. International Journal of Hydrogen Energy, 2020.
  • [267] Alnatheer, O., The potential contribution of renewable energy to electricity supply in Saudi Arabia. Energy policy, 2005. 33(18): p. 2298-2312.
  • [268] Dincer I., Renewable energy and sustainable development: a crucial review. Renewable and sustainable energy reviews, 2000. 4(2): p. 157-175.
  • [269] Nazir, M.S., et al., Potential environmental impacts of wind energy development: A global perspective. Current Opinion in Environmental Science & Health, 2020. 13: p. 85-90.
  • [270] Ciulla, G., et al., Modelling and analysis of real-world wind turbine power curves: Assessing deviations from nominal curve by neural networks. Renewable energy, 2019. 140: p. 477-492.
  • [271] Mongrain, R.S. and R. Ayyanar, Control of nonideal grid-forming inverter in islanded microgrid with hierarchical control structure under unbalanced conditions. International Journal of Electrical Power & Energy Systems, 2020. 119: p. 105890.
  • [272] Cousse, J., Still in love with solar energy? Installation size, affect, and the social acceptance of renewable energy technologies. Renewable and Sustainable Energy Reviews, 2021. 145: p. 111107.
  • [273] Batel, S. and D. Rudolph, A Critical Approach to the Social Acceptance of Renewable Energy Infrastructures, in A critical approach to the social acceptance of renewable energy infrastructures. 2021, Springer. p. 3-19.
  • [274] Hearn, R.N., Comparative analysis of environmental assessment regulatory frameworks for wind energy development in Canada.
  • [275] Menegaki, A., Valuation for renewable energy: A comparative review. Renewable and Sustainable Energy Reviews, 2008. 12(9): p. 2422-2437.
  • [276] Sorknæs, P., et al., The benefits of 4th generation district heating in a 100% renewable energy system. Energy, 2020. 213: p. 119030.
  • [277] Zhao, H.-r., S. Guo, and L.-w. Fu, Review on the costs and benefits of renewable energy power subsidy in China. Renewable and Sustainable Energy Reviews, 2014. 37: p. 538-549.
  • [278] Olanipekun, B.A. and N.O. Adelakun, Assessment of renewable energy in Nigeria: Challenges and benefits. International Journal of Engineering Trends and Technology (IJETT)–Volume, 2020. 68.
  • [279] Tan, S.T., et al., Energy and emissions benefits of renewable energy derived from municipal solid waste: Analysis of a low carbon scenario in Malaysia. Applied Energy, 2014. 136: p. 797-804.
  • [280] Stigka, E.K., J.A. Paravantis, and G.K. Mihalakakou, Social acceptance of renewable energy sources: A review of contingent valuation applications. Renewable and sustainable energy Reviews, 2014. 32: p. 100-106.
  • [281] Wüstenhagen, R., M. Wolsink, and M.J. Bürer, Social acceptance of renewable energy innovation: An introduction to the concept. Energy policy, 2007. 35(5): p. 2683-2691.