|
|
|
| Study on the Plans for Compensation and Earthing ofPower Cable through Line ofShijiazhuang-Taiyuan PDL |
| ZHOU Fan |
| Preparatory Committee of Datong-Xia' n PDL Corporation,Taiyuan, Shanxi 030024,China |
|
|
|
|
Abstract Research purposes: In order to improve power supply reliability, the 30 -60km long power cable through linewas used forShijiazhuang -Taiyuan PDL. Its capacitive currentwas normally bigger than 30A and exceeded the international limited value. Since the loadwas nothigh in the railway section, the loadmuch differed in different time and runningmethod, and the capacitive current of the cable line amounted a big proportion of the total curren,t the capacitive currentof the cable line changedwith the change of railway load. In order to solve the capacitive effec,t this paper analyzes and calculates the compensation capacitywithATP to determine the plan of compensation and extinction of the electrical arc.
Research conclusions:Combined with the actual engineering situation of Shijiazhuang -Taiyuan PDL, this paper describes the harm probably caused by capacitive effect of long cable line, gives the resolution to this problem, and determine compensation capacitiesof the static -type SVG and tracking-mode extinction coilwithATP. Thismethod is proved reliablewith perfect result in the real testand can be as the reference to the similarworks.
|
|
Received: 25 September 2009
|
|
|
|
|
|
[1] 贺志峰,刘沛.对中压配电网中性点接地方式的研究[J].电力自动化设备, 2002(9): 70 -72.
[2] 解广韵.电力系统过电压[M ].北京:水利电力出版社,1983.
[3] 刘万顺.电力系统故障分析[M ].北京:电力工业出版社, 1980.
[4] 何仰赞,温增银.电力系统分析[M ].武汉:华中科技大学出版社, 2002.
[5] 贺家李,宋从矩.电力系统继电保护原理[M ].北京:中国电力出版社, 1994.
[6] 刘卓辉.铁路贯通电缆容性参数及仿真的研究[J].电气化铁道, 2009(2): 5 -9.
[7] 毛为民.电力电缆相序阻抗计算与分析[J].供用电,2002(4): 24 -25.
[8] 卓金玉.电力电缆线路的相序阻抗[M ].北京:机械工业出版社, 1999.
[9] 束洪春,司大军,陈学允.复杂电力系统电气故障电磁暂态数字计算方法研究[J].电网技术, 2003(12): 31 -36.
[10]黎文安.电气设备手册[K ].北京:中国水利水电出版社, 2007.
|
|
|
|
2009, Vol. 26 
