500kV固定串补人工单相接地故障试验现场实测结果分析与仿真计算  

Analysis on Field Measurement Results of Artificial Single Phase Grounding Test for 500 kV Fixed Series Compensator and Simulating Calculation

作　　者：蒋卫平[1] 李新年[1] 吕鹏飞[2] 项祖涛[1] 舒适[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192 [2]国家电力调度通信中心,北京市西城区100031

出　　处：《电网技术》2009年第1期17-21,共5页Power System Technology

摘　　要：阐述了华东电网某500kV固定串补装置改造工程系统调试过程中人工单相接地故障试验的现场实测结果,利用电磁暂态计算程序(重组版)(EMTP-RV)再现了单相接地试验过程,分析并确认串补装置存在旁路间隙放电电压低于正常值的缺陷,预测了间隙正常动作时线路不同地点发生单相接地故障串补装置的运行工况,对消除串补装置中存在的隐患提出了相关建议。The filed measurement and calculation results of artificial single-phase grounding test during the system commissioning for the renovation of a certain 500kV fixed series compensator configured in East China power grid are analyzed. By use of electromagnetic transients program （restructured version）, the process of this single-phase grounding test is reappeared. The defect existing in this fixed series compensator that its sparkover voltage of the bypass air-gap is lower than the normal value is analyzed and confirmed. The operating condition of the fixed series compensator is predicted while single-phase grounding fault happens in different sites of transmission line in the case of correct action of bypass air-gap, and related suggestion to eliminate the hidden troubles existing in fixed series compensator is proposed.

关 键 词：人工单相接地试验 500kV固定串补 触发放电 间隙 放电电压 

分 类 号：TM722[电气工程—电力系统及自动化]