电力系统自动化2011，Vol.35Issue(8)：87-92,6.
电网低次谐波电压下双馈风电系统定子谐波电流抑制
Stator Harmonic Current Suppression Strategy for Doubly-fed Wind Power Generation System Influenced by Low-order Harmonic Voltage of Grid
摘要
Abstract
IEEE standards have defined the maximum permitted harmonic current injected to the grid by distributed resources. According to the analysis of the stator current total harmonic distortion (THD) influenced by grid harmonic voltage in doubly-fed induction generator (DFIG), there is a drawback of grid-connected vector control for DFIG in high power converter. Due to the low control bandwidth, this control strategy cannot suppress the harmonica current of stator. So the power quality cannot fulfill the IEEE standards in the full range of operating process. An improved vector control strategy based on the closed loop control of stator harmonic current is presented. It adds a separated control loop for harmonic stator current to fulfill the requirement of the standard. A 30 kW DFIG platform is implemented. Experiment result shows the THD of stator current is reduced by using this improved vector control strategy.关键词
双馈感应发电机/谐波电压/矢量控制/电流谐波抑制/定子电压定向/风力发电Key words
doubly-fed induction generator (DFIG)/harmonic voltage/vector control/harmonic current suppression/stator voltage oriented/wind power引用本文复制引用
徐君,陈文杰,徐德鸿,陈敏..电网低次谐波电压下双馈风电系统定子谐波电流抑制[J].电力系统自动化,2011,35(8):87-92,6.基金项目
教育部博士点基金资助项目(J200710715). （J200710715）
