%0 Journal Article
%T Harmonic current detection based on asymmetric notch filter<br>基于不对称陷波器的谐波电流检测方法*
%A ZHANG Jun-min
%A <br>张俊敏
%J 计算机应用研究
%D 2012
%I 
%X According to the base-adaptive detecting method of harmonic current,this paper proved that the weight vector of base-adaptive method was a variable value that contained direct part and 2 harmonic,so this system couldn’t detect harmonic current accurately.Based on analysis above,this paper proposed the asymmetric notch filter method.In this method,a 2-order low-pass filter was in base-adaptive system.This paper discussed the stability of improved system.Then theoretical analysis and simulation test showed the bandwidth had been reduced nearby reference frequency.Simulation shows that the dynamic performance is in a period and the harmonic distortion rate is no more than 1.7%.
%K asymmetric notch filter
%K analog circuit
%K adaptive
%K low-pass filter
%K harmonic<br>不对称陷波器
%K 模拟电路
%K 自适应
%K 低通滤波器
%K 谐波
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=4189763B19B8AD45281D82A8CD975438&yid=99E9153A83D4CB11&vid=771469D9D58C34FF&iid=CA4FD0336C81A37A&sid=F9F74EC1AA08A7B9&eid=D5C73DEF4CF8FAF3&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=17