摘要
对一种采用可控串补的远距离发电厂输电系统的稳定性进行分析,借助简化模型推导了在不同地点发生三相短路故障时发电厂输出的电磁功率,对电网参数、串补补偿度与输电系统稳定性之间的内在关系进行了分析,研究了不同地点故障对系统稳定性的影响,从而可确定制约输电系统输送能力的故障点。借助该模型分析了制约东北电网伊敏电厂送出能力的故障点,电网的仿真计算结果验证了模型的正确性。
The stability of long distance transmission system with TCSC is analyzed in this paper,and the electromagnetic power of generators at different fault points is deduced by using of a simplified model.Then the inner relation between parameters of power grid,compensation degree of TCSC and transient stability of the transmission system is analyzed,and the influence of faults that occur at different points on system stability is studied,which will determine the fault point that restricts the transmission capability.In the end,this model is used to find out the fault point that restricts the power output capability of Yimin Power Plant in Northeast Power Grid,which verifies the validity of the model.
出处
《现代电力》
2011年第3期12-16,共5页
Modern Electric Power
关键词
输电系统
稳定性
电磁功率
可控串补
transmission system
stability
electromagnetic power
TCSC
