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Influence of inertia response control of wind turbine with doubly fed induction generator on drive train torsional vibration
Author(s): 
Pages: 78-86
Year: Issue:  10
Journal: Electric Machines and Control

Keyword:  wind turbine with doubly fed induction generatordrive train modeltorsional vibrationiner-tia response controldamping controller;
Abstract: Inertia response control of wind turbine with doubly fed induction generator is an effective way to participate in frequency control, and thus improve power system frequency response. Based on inertia control theory, the influence of inertia response control of DFIG-Based WTGs on drive train torsional vi-brations was investigated. Through the two-mass and three-mass models of drive train, the mechanism that how the inertia response control could cause drive train torsional vibrations was analyzed. It is shown that inertia response control of DFIG-Based WTGs could excite the weakly damped torsional mode, resul-ting in torsional oscillation. Furthermore, a torsional damping controller was also proposed which could increase the damp of the drive train torsional modes, and thus damp drive train torsional vibrations caused by inertia response control. Simulation results verified the analysis of the impact of inertia response con-trol of DFIG-Based WTGs on drive train torsional vibrations, and the effectiveness of the proposed torsion-al damping controller.
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