Abstract：Principal theory of the direct transient current control method used for active power filter (APF) is described firstly, and based on which, a novel PWM current tracking control algorithm is proposed. By analyzing the direct control action of different switching states on the transient current, a set of current displacement factors are derived. The different current displacement factors and their action time are selected when the output current needs to be regulated. The control objective of output current tracking the command transient current value is achieved by transiting the transient current to the command value. The proposed method is simple and easy to use, and the quick measurement and control for the APF can be realized by one single digital signal proceeing(DSP) system. Also, the output inductance is reduced. Finally, the validity of the new method is proved by simulation results of a two-level, and more advantages are shown.
尹春杰, 张承慧, 陈阿莲, 王鑫, 刘振. 基于瞬时电流直接控制的有源电力滤波器电流跟踪新方法[J]. 电工技术学报, 2012, 27(4): 117-122.
Yin Chunjie, Zhang Chenghui, Chen Alian, Wang xin, Liu Zhen. A Novel Current Tracking Method for Active Power Filter Based on Direct Transient Current Control. Transactions of China Electrotechnical Society, 2012, 27(4): 117-122.
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