电压崩溃机理探讨

THE RESEARCH FOR VOLTAGE COLLAPSE MECHANISM

本文从新的负荷模型和P—G曲线出发,揭示了与电压崩溃密切相关的负荷动态特性和网络特性,定性地分析了电压崩溃的动态机理,对静态电压崩溃和暂态电压崩溃的全过程作出了合理的解释,并对无功功率与电压稳定的关系、并联电容补偿对电压稳定的作用进行了简单的分析.

This paper discusses the mechanism of voltage collapse. The load dynamic characteris- tic and the elec ric network characteristic: P-G curve and V-G curve are first motivated to capture ?ne nature or voltage collapse phenomena, Then the analyses to static voltage sta- bility and transient voltage stability are given throrgh simple examples. The relationship be- tween reactive power and voltage stability, and the contribution of shunt capacitiance com- pensation to voltage stability are discussed also in this paper.