【摘要】 视在功率是一个重要的电气物理量,在三相不对称系统中有两种不同的视在功率定义,即算术视在功率和相量视在功率,多年来这两个视在功率的争议不断,不同的功率定义导致了不同的计算结果及测量手段上的混乱,本文对现行的视在功率的定义进行了讨论,介绍了计算三相不对称负载和非正弦交流电路视在功率的一种新算法——BG法。更多还原

【Abstract】 There are two different apparent power definitions in conventional electrical circuit theory in three phase unbalanced system,the arithmetic apparent power and vector power, which results in different calculation answer according to different apparent power definition. This paper introduces a new apparent power definition based on power loss,BG definition. Test examples on a simple network are presented to evaluate the method.更多还原