单相电路的谐波和基波无功检测新方法  

A New Method for Harmonic and Basic Wave Reactive Power Detection in A Single-Phase Circuit

作　　者：任明炜[1] 孙玉坤[1] 郑红平[2] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江202013 [2]浙江林学院理学院,浙江临安313300

出　　处：《中国农村水利水电》2005年第5期115-117,119,共4页China Rural Water and Hydropower

基　　金：江苏省高新技术资助项目(BG2004024)

摘　　要：在三相瞬时无功功率理论的基础上,完整地推导出了单相电路的Park变换,把它与小波理论相结合,形成了一种新单相电路的谐波、无功检测方法;并且整个检测的运算过程可用软件来实现,不必依赖昂贵的元件和复杂的电路。仿真和实验结果证实了该方法的正确性和可行性,为单相电路的谐波和无功检测提供了一种全新又经济的方法。A new detection method of harmonic and reactive power is proposed by combining the wavelet theory with the Park transformation deduced completely on the basis of three-phase instantaneous reactive power theory. The whole detection process can be realized by software, without depending on expensive components and complex circuit. It is shown from the simulation and experiment results that the proposed detection method is correct and feasible; it can provide a new economical way for the harmonic and reactive power detection of single-phase circuit.

关 键 词：单相 小波 谐波 无功 

分 类 号：TM93[电气工程—电力电子与电力传动]