摘要
对于不对称三相电路，电力有源滤波器能同时抑制谐波电流、负序电流分量，还能补偿基波无功功率。为此需准确检测这些电流分量，文中提出了一种实时检测不对称三相电路谐波和负序电流分量以及基波无功电流分量的方法，并对该检测方法进行了理论分析。用PSpice软件仿真证明了所提方法的正确性。
Active power filter can compensate current components which include the harmonic and negative sequence current components, and can alsocompensate the fundamental reative power when it is used in the unbalancedthree-phase circuit. So these harmonic and negative sequence current components should be detected precisely. For this purpose, a real-time detectingmethod is proposed,which detects the harmonic,negative sequence and fundamental reactive current components. The detecting method is analysed theoretically and demonstrated by the digital simulation with the Pspice software.
出处
《现代电力》
1997年第3期27-32,共6页
Modern Electric Power
关键词
有源滤波器
谐波电流
负序电流
检测
active filter, harmonic and negative sequence current,fundamental reactive current,monitoring
