Abstract：In order to overcome the stator overvoltage of electricity excitation direct-driven wind power generator in case of short-term overspeed, this paper studies the flux weakening control range of electrically excited synchronous generator (EESG). Flux weakening control can be obtained by reducing the rotor side excitation current, but the response is too slow because of the large rotor side inductance. This paper proposes a method of using the virtual impedance in the rotor side control system to reduce the inductance of the system. Simulation and experiment results show the flux weakening control of EESG based on virtual inductance has good dynamic response.
赵新, 吴学智, 李葛亮, 童亦斌. 利用虚拟阻抗改善电励磁同步发电机弱磁控制性能[J]. 电工技术学报, 2015, 30(22): 49-56.
Zhao Xin, Wu Xuezhi, Li Geliang, Tong Yibin. Improving the Flux Weakening Control Performance of Electrically Excited Synchronous Generators Based on Virtual Impedance. Transactions of China Electrotechnical Society, 2015, 30(22): 49-56.
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