非正弦条件下无功电流基波分量有效值的检测算法研究  

The Method for Detecting the Reactive Current Fundamental Components Rms Under Nonsinusoid Alconditions

作　　者：朱晓清[1] 陈伯定 李国勇[1] 丁海艳[1] 

机构地区：[1]哈尔滨理工大学,哈尔滨150040 [2]海军南海工程设计院,广东湛江524003

出　　处：《电力学报》2009年第2期117-120,共4页Journal of Electric Power

摘　　要：通过研究在电压电流幅值的暂态变化过程中,如何利用滑动傅立叶变换提取其基波分量,并利用Fryze时域分析电流分解实时的计算无功电流瞬时值,在此基础上得出无功电流基波有效值作为(TSC)控制的主要判据,针对检测算法和系统做了Matlab仿真,从有效可行性方面做了分析。结果表明,该算法具有工程实用价值。How to extract the fundamental component by sliding fourier transform in the process of transient voltage and current＇s amplitude changing,which is researched in this paper, then use the Fryze＇s time-domain analysis calculate the momentary reactive current value and fun- damental reactive current RMS,as the main criterion for （TSC）. Have done a simulation with Matlab for detection algorithm and system,have done a feasibility analysis from the effective, the results show that this detecting method have practical value.

关 键 词：暂态变化 滑动傅里叶变换 基波分量 

分 类 号：TM714[电气工程—电力系统及自动化]