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Indeterminate Frequency Hysteresis SVPWM Current Control Method for Active Power Filter
Author(s): 
Pages: 48-51
Year: Issue:  1
Journal: Power Electronics

Keyword:  active power filterindeterminate frequency hysteresisspace vector pulse width modulation;
Abstract: 为提高有源电力滤波器(APF)的电流跟踪性能,提出了一种基于不定频滞环的电压空间矢量脉宽调制(SVPWM)电流控制新方法.该方法将滞环控制与SVPWM控制相结合,利用电流误差矢量与参考电压矢量的空间分布给出最佳的电压矢量切换,将电流限制在一个给定滞环宽度内;采用电压空间矢量消除相间影响,并且实现简单,无需复杂的矢量变换.在取得快速电流响应的同时,降低了开关频率,提高了系统运行效率.仿真和实验结果均证明了该控制策略的正确性和可行性.
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