基于无功功率理论的有源电力滤波器仿真研究

Research of Active Power Filter Based on Reactive Power Theory

通过对有源电力滤波器的研究,提出了一种基于瞬时无功功率理论的电流检测和电流滞环控制的有源电力滤波器设计方法。通过仿真验证,证明当电源电压非平衡时,不产生检测误差,可以大大降低谐波对电网造成的危害。

Proposed a kind of design method of active power filter based on current detecting of instantaneous reactive power theory and current hysteresis control through researching of active power filter. Simulation results show that this method can accurately detect the current and reduce the harm of harmonic to the system network when the voltage nonequilibrium.