基于两点电压电流瞬时值计算电气量的方法

A Method of Calculating Electric Capacity Based on Instantaneous Voltage and Instantaneous Current of Two Points

从基本电路原理出发给出电压有效值U、电流有效值I、有功功率P和无功功率Q的定义。推导出由两点电压、电流瞬时值计算U、I、P和Q的公式。

In this paper the principal definitions of energy voltage U; energy current I,active power P and reactive power Q are given by electrocircuit principle.The calculating formulas of U,I,P,and Q based on instantaneous voltage U and instantaneous current I of two points are inferred and tested by a random data set.