一种数字化实时谐波电流的检测方法  

A measurement for digital real-time detecting harmonic current

作　　者：荣大伟[1] 陶骏[1] 刘正之[1] 

机构地区：[1]中国科学院等离子物理研究所,合肥230031

出　　处：《电测与仪表》2004年第1期35-38,共4页Electrical Measurement & Instrumentation

摘　　要：提出了一种基于三相瞬时功率理论犤1犦的谐波实时检测方法,采用傅立叶变换得到同步信号的锁相技术和平均值滤波技术,大大提高检测响应速度和检测精度。文中给出了检测原理、仿真结果和性能分析。In this papar,a new approach of harmonic current detecting based on the in-stantaneous power theory is proposed.Applying with the digital phase-locked based on the Fourier transformation and mean-value Filter,this method has a faster response and a higher precision.There are theoretical analysis and the simulation in the paper.

关 键 词：瞬时功率理论 平均值滤波器 傅立叶展开 数字锁相 谐波电流 检测方法 

分 类 号：TM714[电气工程—电力系统及自动化] TM933.1