单周控制并联型有源电力滤波器的仿真研究

Simulation of Shunt Active Power Filter with One-cycle Control

以单周控制三相四线制有源电力滤波器为研究对象,分析了系统的全局稳定条件和补偿后电流中直流分量的产生机理,利用Matlab对系统带不平衡负载时的动、稳态补偿性能以及稳定性进行了仿真研究。结果表明,当系统参数满足全局稳定条件时,单周控制三相四线制有源电力滤波器具有较好的动态补偿性能,并能抑制三相负载的不平衡。

Taking Three.phase four-wire Active Power Filter （APF） with one-cycle control as the research object, authors analyze overall stability condition and the mechanism of direct current off-set in the compensated current of the system. Simulation research of the dynamic and steady compensation performance of the system with the lopsided load by Matlab is also proposed. The results show that the system has an excellent dynamic and steady compensation performance for harmonic and reactive currents as well as can suppress the imbalance of three-phase load if the system parameters meet the whole region stability condition.