电力系统暂态稳定安全域估计

ESTIMATION OF TRANSIENT STABILITY SECURITY ERGION FORPOWER SYSTEM

以电力系统经典模型为基础,本文在理论上首次推导出一种电力系统暂态稳定安全域的解析表达式,并提出了基于混合方法的发电机暂稳输出功率极限计算方法以及快速求解该安全域的算法。 理论推导和示例表明,该暂态稳定安全域简单直观,计算快速,是一种非常有前途的方法。

The present paper studies the Transient Stability Security Region (TSSR) which deseribes dynamic security of power system by a constrained space (or a region) of generator's power injections. Using classical model, the author derived, for the first time, an analytical solution of TSSR. By the use of the Hybrid Method, a prediction-correction methid for the cvaluation of generator's out power limits and TSSR is derived.Illustritive examples are obtained on a 3 machine 7 bus test system, and the conclusions are indicated.