电力系统谐波和无功电流检测综述

Study of Detecting Method of Harmonics and Reactive Current of Power System

分析目前常用的电力系统谐波和无功电流的检测方法,指出了基于瞬时无功功率理论的谐波检测法延时小,实时性好;基于傅里叶快速变换的检测法既可检测谐波又可用于频谱分析。

Several common methods of detecting harmonics and reactive current for power systems are introduced. Based on the theory of reactive power, it argues that harmonic detecting methods can accelerate the speed of dynamic response of harmonic. Based on FFT detecting method, detecting harmonics and conducting spectral analysis can be realized.