The Stability Analysis and New Torque Control Strategy of Direct-Driven PMSG Wind Turbines

This paper expounds on the direct-driven PMSG wind power system control strategy, and analyses the stability conditions of the system. The direct-driven PMSG wind power system may generate the intense mechanical vibration, when wind speed changes dramatically. This paper proposes a new type of torque control strategy, which increases the system damping effectively, mitigates mechanical vibration of the system, and enhances the stability conditions of the system. The simulation results verify the reliability of the new torque control strategy.

• Jun Liu
• Feihang Zhou
• Gungyi Wang

• Damping
• direct-driven PMSG wind power system
• mechanical vibration
• torque control.

[1] Li S, Haskew T, Swatloski R P, et al. “Optimal and direct-current vector control of direct-driven PMSG wind turbines,” Power Electronics, IEEE Transactions on, 2012, 27(5): 2325-2337.
[2] Yan J, Lin H, Feng Y, et al. “Improved sliding mode model reference adaptive system speed observer for fuzzy control of direct-drive permanent magnet synchronous generator wind power generation system,” IET Renewable Power Generation, 2013, 7(1): 28-35.
[3] Bianchi F D, Mantz R J, Christiansen C F. “Gain scheduling control of variable-speed wind energy conversion systems using quasi-LPV models,” Control Engineering Practice,2005,13(2):247-225.
[4] De Battista H, Mantz R J, Christiansen C F. “Dynamical sliding mode power control of wind driven induction generators,” IEEE Transactions on Energy Conversion,2000,15(4):415-457.
[5] Simoes M G, Bose B K, Spiegel R J. “Fuzzy logic based intelligent control of a variable speed cage machine wind generation system,” IEEE Transaction on Power Electronics,1997,12(1):87-95
[6] Shen Y, Li F, Wu D, et al. “dSpace based direct-driven permanent magnet synchronous wind power system modeling and simulation,” 2012 UKACC International Conference on. IEEE, 2012: 809-812.
[7] Trilla L, Bianchi F D, Gomis-Bellmunt O. “Linear parameter-varying control of permanent magnet synchronous generators for wind power systems,” IET Power Electronics 2014, 7(3): 692-704.
[8] Kim K H, Jeung Y C, Lee D C, et al. “LVRT scheme of PMSG wind power systems based on feedback linearization,” Power Electronics, IEEE Transactions on, 2012, 27(5): 2376-2384.
[9] Han Jingqing, “From PID to active disturbance rejection control,” IEEE Trans. Ind. Electro,2008,56(3):900-906