单相有源电力滤波器的滞环控制策略分析

分析并比较了四种适用于电压逆变器开单相有源电力滤波器的电流滞环控制策略。提出了降低有源电力滤波器开关频率及减小该开关频率变化范围的方法。

Analysis of Hysteresis Control Schemes for Active Power Filters

Four hysteresis current control methods for single-phase active VSI power filters are analyzed and compared,and methods for reducing the switching frequency of the main switches of active VSI power filters and decreasing its change range are proposed.Meanwhile,it is pointed out that better control characteristics are provided with sinusoidal carrier waveform substituting for delta carrier waveform.Conclusions of analysis are also suited for the control of single-phase active CSI power filters.