TSC装置合闸过电压及其抑制措施  

The Closing Overvoltage of TSC Device and Restraining Measures

作　　者：刘鹏[1] 常宇 

机构地区：[1]西安交通大学电气工程学院,西安710049 [2]山东泰开电力电子有限公司,山东泰安271000

出　　处：《电力电容器与无功补偿》2008年第5期9-11,31,共4页Power Capacitor & Reactive Power Compensation

摘　　要：首先分析了常用的几种晶闸管投切电容器装置(TSC)的主电路,以晶闸管与二极管反并联构成的TSC无触点开关为例,分析了TSC装置合闸过程中,晶闸管阀端可能承受的过电压,并提出了采用并联MOA抑制过电压的方案。以一组工程应用的10 kV TSC装置为例,采用matlab/simulink对装置采用MOA前后的过电压水平进行了仿真分析,结果表明,采用阀端安装MOA抑制过电压的方案是可行的。This paper analyzes the prime circuit frame diagrams of Thyristor switching capacitor （TSC） commonly used. And the possible overvohage upon the thyristor valve during the closing process of TSC has been analyzed. A new method of restraining the overvohage using the MOA has been advised. Based on a practically used 10 kV TSC device, the effect of restraining overvohage of MOA has been simulated and analyzed using the software Matlab/Simulink. The simulating result indicates that it is feasible to restrain the closing overvoltage of TSC device by MOA connected in parallel with the thyristor valve.

关 键 词：TSC 晶闸管阀 金属氧化物避雷器(MOA) 

分 类 号：TM86[电气工程—高电压与绝缘技术]