电力系统静态电压稳定性快速实用计算新方法

在电力系统常规潮流解的基础上，利用Ｈ参数矩阵，提出了一种应用等值原理将复杂电力系统等值为简单系统来确定静态电压稳定性的实用计算新方法。文中证明了简单电力系统与复杂电力系统的电压稳定性结论是一致的。同时，还证明了按负荷功率的最大值方法与按等值原理方法分析电压稳定性所出的结论也是一致的，算例表明，所提出的方法简单易行，计算速度快，概念明确。

A NEW PRACTICAL METHOD FOR FAST CALCULATION OF STEADY STATE VOLTAGE STABILITY OF POWER SYSTEMS

Based on the normal load flow solution and H parameter matrix, a new practical method for studying steady state stability of power systems is proposed by equivalent circuit theory to simplify the multimachine system to a simple system. In the paper, it shows that the result of steady state voltage stability of the equivalent system is identical with the simple system. In addition, it shows that the conclusion of voltage stability by another method of maximum value of load power is also identical by the proposed method. Finally, an example illustrates that this method is simpler for application, faster in calculation and clearer on physical conception.