基于小波变换的基波无功实时检测  

Real-time Fundamental Wave Reactive Power Detection Based on Wavelet Transform

作　　者：郑红平[1] 孙玉坤[2] 任明炜[1] 

机构地区：[1]江苏大学电气信息工程学院 [2]江苏大学

出　　处：《农业机械学报》2005年第10期130-133,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：江苏省高新技术资助项目(项目编号:BG2004024)

摘　　要：分析了SVC装置现有的无功功率检测方法,提出了一种基于正交小波变换的基波无功功率实时检测方法。该方法用电力系统电压、电流信号离散采集的数据,可方便地对系统功率因数实时检测,能有效地分解和计算含各次谐波和随机干扰的电压、电流信号中的基波分量,从而得到实时的无功功率数据。通过仿真,验证了实时检测方法的有效性。A novel method to detect real-time reactive power was presented based on wavelet transform. The method could simply detect power-factor of power system by discrete collected date of power system voltage and current. By calculating the fundamental component of power system voltage and current, the real-time data could be obtained. Numerical simulation was given to demonstrate the effectiveness of the proposed method.

关 键 词：无功功率 晶闸管控制电抗器 小波变换 检测 

分 类 号：TM93[电气工程—电力电子与电力传动]