大容量电动机启动对孤立小电网的影响  

Influence on Isolated Small Power Grid Imposed by the Large Capacity Motor Starting

作　　者：靳希[1] 沙旦华[1] 张立峰 王晓峰 厉瑜 曹炜[1] 张菲菲[1] 

机构地区：[1]上海电力学院电力与自动化工程学院,上海200090 [2]西藏电力有限公司,西藏拉萨850000

出　　处：《上海电力学院学报》2011年第6期579-582,共4页Journal of Shanghai University of Electric Power

基　　金：西藏电力有限公司科技项目(SJB-2010-001);河北电力公司科技帮扶项目(KJ-2010-112);上海市科委资助项目(11195802200)

摘　　要：运用ETAP软件,对某孤立小电网进行了仿真分析.结果表明:大容量电动机的启动虽未造成该电网失稳,但其直接启动的电流较大,给电网带来很大冲击.在光伏电站投入运行前,建议进行电动机启动实验,并根据实测数据进行保护整定或采取电动机启动措施减小压降.By ETAP software, simulation and analysis is made to the isolated small power grid with photovoltaic. The result shows that though the large capacity motor starting will not cause the power gr/d instability, the direct starting current is often large, which will cause great impact on the grid. Before the photovoltaic power station is put into operation, it＇s advisable to do motor start experiment, go on protection setting according to the measured data or take measures to reduce the motor start voltage drop.

关 键 词：电动机 动态启动 孤立小电网 

分 类 号：TM34[电气工程—电机]