基于ATP-EMTP的上海电网短路电流直流分量衰减特性分析  

Analysis of Decaying Characteristics of DC Component of Short Circuit Current in Shanghai Grid Based on ATP-EMTP

作　　者：靳希[1] 张文青[1] 刘蓓[2] 杨秀[1] 曹炜[1] 段开元[1] 

机构地区：[1]上海电力学院电力工程系,上海200090 [2]上海市电力公司,上海200122

出　　处：《华东电力》2010年第10期1554-1557,共4页East China Electric Power

基　　金：国家自然科学基金项目(50907039);上海市教育委员会重点学科建设资助项目(J51301)~~

摘　　要：短路电流直流分量对断路器工作条件的影响不容忽视。常规的电力系统机电暂态仿真软件如BPA、PSASP及PSS/E等只能计算电网短路电流交流分量,无法直接准确计算短路电流的直流分量情况。基于EMTP软件建立了上海电网电磁暂态仿真模型,并在电磁暂态环境下研究了上海电网短路电流直流分量衰减特性,为上海电网经济合理地选择断路器提供了重要的依据。The DC component of short circuit current has a great effect on the working condition of the circuit breaker.The conventional power system transient simulation softwares such as BPA,PSASP and PSS/E can only calculate the AC component of the grid short circuit current while can not directly calculate the DC component accurately.The transient electromagnetic simulation model for the Shanghai Grid was built and the decaying characteristics of the DC component of the shout circuit current in the Shanghai grid were studied in the transient electromagnetic environment,which provided an important basis for economically and reasonably selecting circuit breakers for the Shanghai Grid.

关 键 词：ATP-EMTP 上海电网 短路电流 直流分量 断路器 

分 类 号：TM744[电气工程—电力系统及自动化]