电网谐波电流检测方法分析

Review on measuring method of harmonic current in power system

对基于瞬时无功功率理论、有功分离、傅里叶变换、神经网络、小波分析等原理的几种谐波检测方法进行了介绍,讨论了各种检测方法的优缺点,指出:未来电力系统谐波检测会向智能化、多功能实用化以及高精度、高速度和实时性好等方向发展.

The present development status of harmonic current detecting methods are introduced and classifted,and a few primary harmonic detecting methods are analyzed and compared such as that based on instantaneous reactive power theory, Fourier transform, active power seperation, neural network and so on. The advantage and disadvantage of verious methods are discussed. It is pointed out the development tendency of the electric system harmonic detecting is on intelligence, multi-function, high-precision, high-rate and real time application.