非正弦电路中无功功率的定义和物理意义

Definitions and Physical Sense of Reactive Power in Non-sinusoidal Circuit

学术界有关无功功率理论的争议由来已久,却至今未取得统一的认可。本文研究和分析了非正弦情况下单相无功功率和三相非正弦无功功率的各种定义,讨论了各种定义的优缺点和物理意义,指出了人们关于无功功率概念的误区。

The argument about the theory of reactive power appeared since 1920's.Traditional power theory can not be applied into circuit under non-sinusoidal conditions.This paper researches definitions and physical sense about reactive power of single-phase and three phase in non-sinusoidal condition.Finally,it is pointed out a mistake about reactive power.