三相系统中非正弦瞬时电流和功率的分解

Decomposition of nonsinusoidal instantaneous currents and power in three-phase systems

本文讨论多相电路中瞬时电流的分解，仿照经典的电流复数分解，将瞬时电流分解为有功、无功分量，从而定义瞬时有功、无功功率，并举例说明了各量的意义，与传统的电流、功率的概念作了比较．

ecomposition of instantaneous currents in 3-phase circuits is discussed in this paper.Simulated by the classical decomposition of current compleces, a instantaneous current is decomposed into active and reactive components,from which the instantaneous active and reactive power are defined. Finally,the meanings of all quantities are illustrated by three examples, and compared with concepts of traditional currents and power.