电力系统保护与控制Issue(13)：93-96,4.
三相不对称系统任意次谐波电流检测新方法
A new algorithm for random harmonic current detection under unbalanced three phase system
吕晓琴 1章春军 1张秀峰1
作者信息
- 1. 西南交通大学峨眉校区，四川 峨眉 614202
- 折叠
摘要
Abstract
A new algorithm for detecting random harmonic current in unbalanced three phase system is proposed. An arbitrary initial phase angle is constructed, whose sine and cosine signals have the same frequency with the random harmonic current needed to be detected. It is used to conduct correlation operation with three phase current, and the components of positive, negative and zero sequences of random harmonic current can be detected. By adding the three components, the random harmonic current of three-phase four-wire system can be obtained. Without phase lock loop, the circuit is simpler. Both the theoretical analysis and simulation results demonstrate the correctness of the method.关键词
三相不对称系统/任意次谐波电流/检测/锁相环/仿真Key words
unbalanced three phase system/random harmonic current/detection/phase lock loop/simulation分类
信息技术与安全科学引用本文复制引用
吕晓琴,章春军,张秀峰..三相不对称系统任意次谐波电流检测新方法[J].电力系统保护与控制,2013,(13):93-96,4.
