摘要
利用电力系统势函数洼的概念建立电压静态稳定性理论判据,并由此推出目前常用的各种电压静态稳定性判据。研究结果表明,后者仅是前者在各种不同简化条件下的表现形式,从而在理论上揭示出目前使用的各种判据间的内在联系及其局限性,为电力系统电压稳定性分析和控制提供了理论基础。
The criterion of voltage static stability according to the concept of potential well of power system is developed ,from which the conventional voltage static stability criteria are deduced.It is showed that from the study all of these criteria are only the various simplifying expressions of the criterion presented in this paper.Therefore,the internal relations and limi- tations of the conventional criteria are revealed.This provides theoretical basis for voltage stability analysis and control in power system.
关键词
电力系统
稳定性判据
电压静态
power system
voltage static stability
potential well
stability criterion
