220kV电网短路电流控制措施研究  

Control Measures for Short Circuit Current in 220kV Power System

作　　者：袁智强 黄薇[2] 江峰青[2] 

机构地区：[1]上海电力设计院有限公司,上海200025 [2]上海市电力公司,上海200122

出　　处：《现代电力》2009年第4期41-46,共6页Modern Electric Power

摘　　要：随着电力系统规模的不断扩大以及电网结构联系的日益紧密,全国各地区电网的短路容量问题越来越突出,在不采取限制措施的情况下,一些地区电网的短路电流将会超标。针对已解环的220kV电网,提出了短路电流限制措施,对其限流效果和所引起的供电能力问题进行了研究。以上海某分区电网为例,对其短路电流限制措施进行了研究并进行了相关计算分析。With the development of power system, the structure of power grid becomes stronger. Accordingly, the problem of short circuit capacity is severe and the short circuit current will be bigger than its control value if no control measure is applied. The control measures for 220kV looping-off power grid are suggested, and their effects on restricting short circuit current and problems in power supply are studied. The restriction measures of short circuit current is applied to the power system of some region in Shanghai, and the effect is analyzed.

关 键 词：220KV电网 短路电流 控制措施 

分 类 号：TM713[电气工程—电力系统及自动化]