基于两点电压、电流瞬时值计算电气量的方法

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

从基本电路原理给出的有效电压 U、有效电流 I、有功功率 P和无功功率 Q的定义 ,推导出基于两点电压、电流瞬时值计算的 U,I,P和 Q的计算公式 ,并用任意一组数据进行验证。

In this paper the principal definitions of energy voltage U;energy current I;active powre P and reactive power Q are given by electric circuit 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.