交互式串补本体保护与线路继电保护的数字仿真模型的研究与应用

Research and application of integrated digital model of FSC protection and line relay protection

串联补偿电容器能在一定范围内减小输电线路阻抗,提高输送功率极限,在高压输电系统中得到越来越广泛的应用。基于PSCAD/EMTDC平台和工程实际,建立了串补系统、串补本体保护及线路保护模型,并以平果串补工程为背景建立了南方电网局部网络电磁暂态仿真模型。所建立的串补本体保护及线路继电保护模型可以用于分析串补本体保护与线路保护配合问题。

Series capacitor has advantages of decreasing transmission line impedance and increasing transmission capability, and is used more and more widely in high voltage transmission system. Based on PSCAD/EMTDC, the model of Pingguo TCSC project is set up. The whole AC system is simplified to reduce the size. Only stations adjacent to Pingguo station are reserved. The FSC protection and line relay protection employed on those reserved lines are also simulated in the model, Researches on coordination between main protection for FSC and line relay protection can be carried out by this model.