补偿电铁谐波及无功电流的有源滤波器的研究

Study on Compensating Harmonic and Reactive Currents Active Power Filter for the Electrified Railway System

研究应用于补偿电铁谐波及无功电流的单相有源滤波器,基于鉴相原理的谐波及无功电流检测法适合于作为电铁谐波及无功电流的检测方法,改进的三角波调制电流控制方法能对电铁系统中的谐波及无功电流起到很好的补偿作用。仿真结果表明有源滤波器能够达到综合补偿的目的。

A single phase active filter is proposed based on compensating the electrified railway system harmonic and reactive currents. The harmonic and reactive currents detecting method based on the phase distinguishing technology is fit for the electrified railway system. The improved triangle -wave modulation current control method compensate harmonic and reactive currents of the electrified railway system effectively. The simulative result shows that the active filter possesses good synthetical compensation.