变电站电压稳定性的实用判据

Practical Criterion for Voltage Stability of Substation

给出了基于变电站实时信息和电网准实时信息的电压稳定性实用判据。利用该判据能有效地预测节点电压稳定裕度，并用ＩＥＥＥ－１４节点系统对判据进行了验证。

This paper presents a new practical criterion for voltage stability based on the real-time information at the substation and the quasi-time information from power system.By using the criterion,it is effective to predict the bus voltage stability margin.This is of great importance to raise the security operation level and prevent voltage collapse.The practical criterion for voltage stability is tested on the IEEE-14-bus test system.It needs less calculation time and is very suitable for real-time control of power systems.