灵绍直流单极闭锁事故仿真反演分析

针对灵绍直流某次单极闭锁事故,详细介绍了事故前后宁夏电网运行状态及灵绍直流单极闭锁后对主网的影响。在PSASP程序中搭建了与实际系统一致的仿真模型,并还原了事故发生前时刻的电网运行方式,参照事故前后电网实际动作逻辑,利用PSASP开展了事故离线仿真分析,并将仿真结果与PMU实测曲线进行对比,结果表明仿真曲线与PMU曲线基本吻合,验证了仿真方法与仿真模型的准确性。

Inversion analysis on the simulation of Lingshao DC unipolar blocking accident

Aiming at the unipolar blocking accident for Lingshao DC, the operation state for Ningxiapower grid before and after the accident were introduced as well as the influence of Lingshao DC uni-polar blocking on the main grid. In PSASP program the simulation model was built as the same as thereal system, the operation mode before the moment of the accident occurrence was restored. Referringto the actual action logic of the power grid before and after the accident , the accident off-line simula-tion analysis was made by PSASP, and the simulation results and PMU practical measurement curvewere compared. The results show that the simulation curve and PMU curve basically coincide, whichverified the accuracy of the simulation method and model.