Document Type : Reseach Article

Authors

1 Computer Technology Engineering, College of Engineering Technology, Alkitab University, Iraq

2 Al-Manara College For Medical Sciences, (Maysan), Iraq

3 The University of Mashreq, Iraq

4 College of Media, department of journalism, The Islamic University in Najaf, Najaf, Iraq

5 Department of Medical instruments engineering techniques, Dijlah University College, Baghdad,10021, Iraq

6 Department of Medical instruments engineering techniques, Al-Farahidi University, Baghdad,10021, Iraq

7 Al-Nisour University College, Baghdad, Iraq

8 Computer Techniques Engineering Department, Al-Mustaqbal University College, Hillah 51001, Iraq

9 Mazaya University College/ Dhi Qar, Iraq

10 Scientific Research Center, Al-Ayen University, Thi-Qar, Iraq

Abstract

The most commonly used variable speed wind turbine is based on Doubly Fed Induction Generator (DFIG). To control the reactive power of DFIG-based wind turbines, several methods are suggested that controls the reactive power of the DFIG with slow dynamics and considerable ripples. This paper proposes a new control method based on the adaptive reference model which controls the active and reactive powers of DFIG with high dynamics and low ripples. Given that, the proposed technique has proportional-integral (PI), selecting the proper coefficient for PI controller is significant. To overcome this problem, the grey-wolf algorithm is used to optimize the PI coefficients. The results show that the proposed method gives satisfactory performance with lower overshoots and faster dynamic response.

Keywords

[1] H. Nian, P. Cheng, and Z. Q. Zhu, “Coordinated direct power control of DFIG system without phase-locked loop under unbalanced grid voltage conditions,” IEEE Trans. Power Electron, vol. 31, no. 4, pp. 2905-2918, 2016.
[2] B. Singh, and N. K. S. Naidu, “Direct power control of single VSC-based DFIG without rotor position sensor,” IEEE Trans. Industrial Application, vol. 50, no. 6, pp.4152-4163, 2014.
[3] K. Shi, X. Yin, L. Jiang, Y. Liu, Y. Hu and H. Wen, "Perturbation Estimation Based Nonlinear Adaptive Power Decoupling Control for DFIG Wind Turbine," in IEEE Transactions on Power Electronics, vol. 35, no. 1, pp. 319-333, Jan. 2020, doi: 10.1109/TPEL.2019.2911886.
[4] M. Morawiec, K. Blecharz and A. Lewicki, "Sensorless Rotor Position Estimation of Doubly Fed Induction Generator Based on Backstepping Technique," in IEEE Transactions on Industrial Electronics, vol. 67, no. 7, pp. 5889-5899, July 2020, doi: 10.1109/TIE.2019.2955403.
[5] Y. Zhang, J. Hu, and J. Zhu, “Three-vectors-based predictive direct power control of the doubly fed induction generator for wind energy applications,” IEEE Trans. Power Electronic, vol. 29, no. 7, pp. 3485-3500, 2014.
[6] M. Castilla, J. Miret, J. Matas, A. Borrell, and L. G. de Vicuna, “Direct rotor current-mode control improves the transient response of doubly fed induction generator-based wind turbines,” IEEE Trans. Energy Conversion, vol. 25, no. 3, pp. 722-731, 2010.
[7] J. Hu, J. Zhu, and D. G. Dorrell, “Model-predictive direct power control of doubly-fed induction generators under unbalanced grid voltage conditions in wind energy applications,” IET Renewable Power Generation, vol. 8, no. 6, pp. 687-695, 2014.
[8] P. Cheng, and H. Nian, “Collaborative control of DFIG system during network unbalance using reduced-order generalized integrators,” IEEE Trans. Energy Conversion, vol. 30, no. 2, pp. 453-464, 2015.
[9] S. Ghosh, Y. J. Isbeih, R. Bhattarai, M. S. E. Moursi, E. F. El-Saadany and S. Kamalasadan, "A Dynamic Coordination Control Architecture for Reactive Power Capability Enhancement of the DFIG-Based Wind Power Generation," in IEEE Transactions on Power Systems, vol. 35, no. 4, pp. 3051-3064, July 2020, doi: 10.1109/TPWRS.2020.2968483.
[10] Y. Mi, Y. Song, Y. Fu and C. Wang, "The Adaptive Sliding Mode Reactive Power Control Strategy for Wind–Diesel Power System Based on Sliding Mode Observer," in IEEE Transactions on Sustainable Energy, vol. 11, no. 4, pp. 2241-2251, Oct. 2020, doi: 10.1109/TSTE.2019.2952142.
[11] Y. Zhang, and C. Qu, “Direct power control of a pulse width modulation rectifier using space vector modulation under unbalanced grid voltages,” IEEE Trans. Power Electronic, vol. 30, no. 10, pp. 5892-5901, 2015.
[12] S. Chondrogiannis and M. Barnes, “Stability of doubly fed induction generator under stator voltage orientated vector control,” IET Renewable Power Generation, vol. 2, no. 3, pp. 170–180, 2008.
[13] M. M. Baggu, B. Chowdhury and J. Kimball, “Comparison of advanced control techniques for grid side converter of doubly-fed induction generator back-to-back converters to improve power quality performance during unbalanced voltage dips,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 3, no. 2, pp. 516-524, 2015.
[14] R. Nair and G. Narayanan, "Stator Flux Based Model Reference Adaptive Observers for Sensorless Vector Control and Direct Voltage Control of Doubly-Fed Induction Generator," in IEEE Transactions on Industry Applications, vol. 56, no. 4, pp. 3776-3789, July-Aug. 2020, doi: 10.1109/TIA.2020.2988426.
[15] A. R. Nair, R. Bhattarai, M. Smith and S. Kamalasadan, "Parametrically Robust Identification Based Sensorless Control Approach for Doubly Fed Induction Generator," in IEEE Transactions on Industry Applications, vol. 57, no. 1, pp. 1024-1034, Jan.-Feb. 2021, doi: 10.1109/TIA.2020.3035339.
[16] M. G. Hussien, Y. Liu, W. Xu, A. K. Junejo and S. M. Allam, "Improved MRAS Rotor Position Observer Based on Control Winding Power Factor for Stand-Alone Brushless Doubly-Fed Induction Generators," in IEEE Transactions on Energy Conversion, vol. 37, no. 1, pp. 707-717, March 2022, doi: 10.1109/TEC.2021.3110776.
[17] Y. A.-R. I. Mohamed and E. F. EI-Saadany, “A current scheme with an adaptive internal model for torque ripple minimization and robust current regulation in PMSM drive system,” IEEE Trans. on Energy Conversion, vol. 23, no. 1, pp. 92-100, 2008.
[18] F. Amrane and A. Chaiba. “Model reference adaptive control for DFIG based on DPC with a fix switching frequency,” IECEC, 2015.
[19] Y. D. Landau, “Adaptive Control: The Model Reference Approach”, Marcel ekker, New York, 1979.
[20] S. Mirjalili, S.M. Mirjalili, and A. Lewis, “Grey wolf optimizer,” Advances in Engineering Software., vol. 69, pp. 46-61, 2014.
[21] D. Guha, P.K. Roy, and S. Banerjee, “Load frequency control of interconnected power system using grey wolf optimization,” Swarm and Evolutionary Computation, vol. 27, pp. 97-115, 2016.