[1] Y. Zhang, J. Zhu, W. Xu, and Y. Guo, "A simple method to reduce torque ripple in direct torque-controlled permanent-magnet synchronous motor by using vectors with variable amplitude and angle," IEEE Trans. Ind. Electron., vol. 58, no. 7,pp. 2848-2859, jul. 2011.
[2] Z. Hao, X. Xi, and L. Yongdong, "Torque ripple reduction of the torque predictive control scheme for permanent-magnet synchronous motors," IEEE Trans. Ind. Electron., vol. 59, no. 2, pp. 871-877, Feb. 2012.
[3] I. Takahashi and T. Noguchi, "A new quick-response and high-efficiency control method of an induction motor,”IEEE Trans. ind. Appl., vol. 22,no. 5,pp. 820-827, sep./oct. 1986
[4] D. Swierczynski, M. Kazmierkowski, and F. Blaabjerg, “DSP based direct torque control of permanent magnet synchronous motor (PMSM)using space vector modulation (DTC-SVM),” in Proc. IEEE. Int. Symp. Ind. Electron., vol. 3, pp. 723–727, May. 2002.
[5] W. Qiao, L. Qu, and R. G. Harley, “Control of IPM synchronous generator for maximum wind power generation considering magnetic saturation,” IEEE Trans. Ind. Appl., vol. 45, no. 3, pp. 1095-1105, May/Jun. 2009
[6] MAO Meiqin, LIU Bin, SHEN Kai, XU Bin, CHANG Liuchen, “Research on SVM-DTC of Speed Sensorless PMSG for the Direct-Drive Wind Generation System with CSC,” IEEE Trans. Ind. Appl., vol. 45, no. 3, pp. 1095-1105, May/Jun. 2012
[7] Y. Inoue, S. Morimoto, M. Sanada, “Control method for direct torque controlled PMSG in wind power generation system,” in Proceedings of the Electric Machines and Drives Conference IEMDC '09, pp.1231-1238
[8] W. Qiao, X. Yang, and X. Gong, “Wind speed and rotor position sensorless control for direct-drive PMG wind turbines,” IEEE Trans. Ind. Appl., vol. 48, no. 1, pp. 3-11, Jan/Feb. 2012
[9] Yongqiang Lang, Bin Wu and Navid Zargari, “A High-Power Current Source Converter Based Wind Energy System,” IEEE Transactions on Industry Application 2008, 55(7): 2786-2797.
[10] Y. Inoue, S. Morimoto, M. Sanada, “Control method for direct torque controlled PMSG in wind power generation system,” in Proceedings of the Electric Machines and Drives Conference IEMDC '09, pp.1231-1238
[11] P.Vas, “Sensorless Vector and Direct Torque Control,”Oxford, U.K., Oxford University Press, 1998.
[12] A.B. Nikolic, B.I. Jeftenic, “Speed Sensorless Direct Torque Control Implementation in a Current Source Inverter Fed Induction Motor Drive,” in Proceedings of the 35th IEEE Power Electronics Specialist Conference, PESC 2004, Aachen, Germany,June 2004.
[13] A.B. Nikolic, B.I. Jeftenic, “Direct Torque Control and Virtual-Flux Based Direct Power Control of Current Source Converter in Wind Turbine Application,” in Proceedings of the 14th Power Electronics and Applications Conference, EPE 2011,
[14] Jun Hu, Bin Wu, “New integration algorithms for estimating motor flux over a wide speed range,” IEEE Trans. on PE, 1998, 13(5): 969～977.
[15] M.F. Rahman, L. Zhong, Md.E. Haque, M.A. Rahman, “A DirectTorque-Controlled Interior Permanent-Magnet Synchronous Motor Drive Without a Speed Sensor,” IEEE Transactions on Energy Conversion, 2003, 18( 1): 17- 22.
[16] Yao Jun, Liao Yong, “The unit power factor control of direct-drive permanent magnet synchronous wind turbine,” Electrical Machines and Control, 2010, vol.14, No.6:13-20.
[17] MAO Meiqin, Liu Fuyan, Mu Junsheng, Xu Bin, “Sensorless Control of PMSG for A Wind Power System Based on CSC,” IEEE 8th International Conference ICPE& ECCE2011, Korea, Asia, July 2011, pp.2175-2179.
[18] Zhang Chongwei, Zhang Xing, “PWM rectifier and its control,” Machinery Industry Press, 2003.
[19] D. Swierczynski, M. Kazmierkowski, and F. Blaabjerg, “DSP based direct torque control of permanent magnet synchronous motor (PMSM) using space vector modulation (DTC-SVM),” in Proc. IEEE Int. Symp. Ind. Electron., May 2002, vol. 3, pp. 723–727
[20] L. Tang, L. Zhong, M. F. Rahman, and Y. Hu, “A novel direct torque controlled interior permanent magnet synchronous machine drive with low ripple in flux and torque and fixed switching frequency,” IEEE Trans. Power Electron., vol. 19, no. 2, pp. 346-354, Mar. 2004
[21] J. Holtz and J. Quan, “Sensorless vector control of induction motor at very low speed using a nonlinear inverter model and parameter identification,” IEEE Trans. Ind. Appl., vol. 38,no. 4, pp. 1087-1095, Jul/Aug. 2002
[22] C. Li and M. Elbuluk, “A sliding mode observer for sensorless control of permanent magnet synchronous motors,” in Proc. IEEE IAS Annual Meeting, Sep/Oct. 2001, vol. 2, pp. 1273-1278
[23] Z. Xu and M. F. Rahman, “An adaptive sliding stator flux observer for a direct-torque-controlled IPM synchronous motor drive,” IEEE Trans. Ind. Electron, vol. 54, no. 5, pp. 2398-2406, Oct. 2007
[24] J. Liu, J. Hu, and L. Xu, “Sliding mode observer for wide speed range sensor less induction machine drives: considerations for digital implementation,” in Proc. IEEE Int. Conf. on Electric Mach. and Drives,May 2005, pp. 300-307
[25] Y. Zhao, W. Qiao, and L. Wu, “Compensation algorithms for sliding mode observers in sensorless control of IPMSMs,” in Proc. Int. Electric Vehicle Conf., Mar. 2012, pp. 1-7.
[26] Y. Zhao, W. Qiao, and L. Wu, “Oscillation mitigation for sliding-mode observers in sensorless control of IPMSMs,” in Proc. IEEE Transportation Electrification Conf. and Expo, Jun. 2012, pp 1-6.
[27] H. Geng, G. Yang, D. Xu, and B. Wu, “Unified power control for PMSG-based WECS operating under different grid conditions,” IEEE Trans. Energy Conversion, vol. 26, no. 3, pp. 822-830, Sept. 2011.
[28] Y. Zhao, W. Qiao, and L. Wu, “Dead-time effect and current regulation Quality analysis for a sliding-mode position observer-based sensorless IPMSM drives,” in Proc. IEEE IAS Annual Meeting, Oct. 2012, pp.1-7.
[29] Mehrdad JafarBoland, Bijan Sheikhan, “sensorless speed control of induction motors with dtc based on EKF”. Majlesi journal of electrical engineering, VOL 3, NO 4 (2009)
[30] HamidReza Fakharizadeh,” Improvement of torque response and reduction of error speed in direct torque control of induction motor by fuzzy logic” Majlesi journal of electrical engineering, Vol 3, No 3 (2009)
[31] Mohsen Siami, S. Asghar Gholamian,” Predictive torque control of three phase axial flux permanent magnet synchronous machines”, Majlesi journal of electrical engineering, Vol 6, No 2 (2012)
[32] Maryam Bahramgiri, Ali Abedini, Alireza Siadatan,” Analysis of permanent magnet wind turbine dynamics during wind fluctuations” Majlesi journal of electrical engineering, Vol 6, No 3 (2012)
)