Abstract：The rectifier connected to supply network with an LCL filter is more effective and reduce harmonic distortion at lower switch frequency than an L filter. However an LCL filter will bring stability problem. This paper shows the present damping methods include passive damping with a resistor and active damping algorithm and gives the advantages and disadvantages of these methods. Then the paper shows a new passive damping with a resistor parallel to the filter capacitance and prove it’s validity through ripple current attenuation function for the first time. Then based on virtual resistor concept, this paper gives a new active damping method. Simulation results are provided to prove the validity of this method.
伍小杰, 孙蔚, 戴鹏, 周娟. 一种虚拟电阻并联电容有源阻尼法[J]. 电工技术学报, 2010, 25(10): 122-128.
Wu Xiaojie, Sun Wei, Dai Peng, Zhou Juan. An Active Damping Method of Virtual Resistor in Parallel With Capacitor. Transactions of China Electrotechnical Society, 2010, 25(10): 122-128.
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2010, Vol. 25 
