电力系统的谐波电流及有源滤波器

The Harmonic Currents of Power System and Active Power Filter

讨论了电力系统有源滤波器的特性及原理,并提出了一种检测谐波电流的方法,该方法不仅可以检测出谐波电流,还可以检测出负序电流及波动电流。并采用有源滤波器进行了仿真,结果表明了该方法的有效性。

This paper studied the character and mechanism of Active Power Filter, and presented a method of inspect harmonic. This method can inspect the fundamental positive current, fundamental negative current and fluctuate current. This method can realize fast inspection of harmonic and filter. At last, we simulation the system with the tool--MATLAB. The results indicate that the method is effective.