基于含谐波非正弦电路无功功率新概念的无功电表  

Reactive power meter based on the new definition of reactive power in non-sinusoidal alternating circuit containing harmonic

作　　者：王连符[1] 肖峻[2] 

机构地区：[1]唐山职业技术学院机械电子系,唐山064002 [2]天津大学电气工程及其自动化学院,天津300072

出　　处：《国外电子测量技术》2007年第3期7-8,24,共3页Foreign Electronic Measurement Technology

摘　　要：谐波下无功功率的定义、计量问题一直是电力计量的难题。本文针对电网进行无功补偿的实际需要,基于含谐波非正弦电路无功功率新概念,设计了一种无功电表的硬件电路及软件实现,用该电表测量能分别显示基波、各次谐波产生的无功功率,最后提出了无功电表的改进方向。Defining and measuring reactive power in non-sinusoidal alternating circuit containing harmonic are always difficult problems in electric measurement. A new kind of hardware circuit and software realization of reactive power meter has been designed in this paper, based on the new definition of reactive power in non-sinusoidal alternating circuit. The electric power meter can display reactive power which was produced by fundamental wave and every harmonic separately. Finally, the future work on the improvement of reactive power meter was proposed.

关 键 词：谐波 无功功率 计量 电表 

分 类 号：TM714.3[电气工程—电力系统及自动化]