李锦彬,陈冲.滑窗迭代DFT法APF直流侧稳压控制研究[J].电测与仪表,2016,53(22):. Li Jinbin,Chen Chong.Research on DC Voltage Control Strategy of APF Based on Sliding-window iterative algorithm of DFT[J].Electrical Measurement & Instrumentation,2016,53(22):.
滑窗迭代DFT法APF直流侧稳压控制研究
Research on DC Voltage Control Strategy of APF Based on Sliding-window iterative algorithm of DFT
The active power filter(APF) is a novel method of dynamic harmonic suppression.The compensation performance of APF is determined by the link of detection and control.At the same time,the voltage balance control is the prerequisite for APF to work normally.The detection method of harmonic current based on sliding-window iterative algorithm of DFT is described.And a DC side capacitor voltage control strategy is proposed based on each phase split current.The design method of PI parameter for voltage loop from the perspective of power balance.The correctness of sliding-window iterative algorithm of DFT and proposed DC voltage control strategy is verified by simulation and experiment.