三相无功测量方法的误差  

The error of three phase reactive power measurement methods

作　　者：刘宇怀[1] 叶毅[2] 刘锦高[1] 

机构地区：[1]华东师范大学信息学院通信与信息系,上海200062 [2]中国电子科技集团公司第50研究所

出　　处：《电测与仪表》2003年第9期28-31,共4页Electrical Measurement & Instrumentation

摘　　要：本文从跨相法、移相法以及根据定义计算无功功率三方面出发,对无功功率各种测量方法的误差作了较全面的分析,指出了各种测量方法必须在满足特定的电网状态下,其无功功率的测量精度才能得以保证。This paper is based on Phase-crossing, Phase-shift, and definition-based reactive power measurements.It makes an all-sided analysis on the error of all measurements of reactive power, pointing out that most of the measurements should work under certain power network state to guarantee precise measurement of reactive power.

关 键 词：无功功率 误差分析 跨相 移相 测量方法 

分 类 号：TM933.37[电气工程—电力电子与电力传动]