摘要
研究电力系统安全问题中,提出了一种兼顾精度与速度的计算在线路故障后静态电压稳定裕度的方法。为提高在线电路性能,首先用左特征向量排队,找出较严重故障,然后在利用泰勒级数求得电压崩溃点处状态变量和负荷裕度对严重故障支路连接参数的1~3阶灵敏度的基础上,用四参数拟合方法进行逼近,从而快速精确的求解出关键线路故障情况下电压稳定临界点。最后在IEEE-30和IEEE-57母线系统上的算例得以验证。
Based on 1 to 3 degree derivatives of load parameter and state variables obtained by Taylor' s series expansion under base network topology, this paper proposes a reliable method to calculate the critical point of static voltage stability under branch outage contingency. The feasibility and efficiency of this technique was tested on IEEE - 30 and IEEE- 57 bus system.
出处
《计算机仿真》
CSCD
北大核心
2010年第5期257-260,共4页
Computer Simulation
关键词
静态电压稳定
线路故障
故障分析
灵敏度分析
曲线拟合
Static voltage stability
Circuitry fault
Fault analyses
Sensitivity analyses
Curve fitting