【作者】 王善铭； 桂林； 王祥珩；

【Author】 Wang Shanming,Gui Lin, Wang Xiangheng (Tsing hua University, Beijing 100084, China)

【机构】 清华大学电机系；

【摘要】 将交流电机的多回路分析法应用于发电机内部故障分析计算,编制了仿真计算软件,介绍了软件的特点、界面和结构.该软件考虑了气隙谐波磁场、绕组的各种连结方式、线圈空间位置的影响,可以用来分析交流电机各种形式的内部和外部故障,计算电机所有电压和电流等电气量,定子任意支路电流的组合用于各种保护方案的分析。该软件适合于大中型发电机主保护设计整定计算,是发电机内部故障分析方法与主保护设计的创新。更多还原

【Abstract】 The application of the multi-loop method for AC electrical machines to the analysis of internal fault of generators , on which the developed software of internal fault analysis of generators is based, is described in this paper. The characteristics, user interface and structure of the software are introduced. In the software , the effects of air gap harmonic fields , various connections of windings, and spatial position of coils are considered. This software is capable of analyzing various types of internal and external faults, calculating all of the voltages and currents under different operating conditions, and combining the branch currents for the analysis of different protection schemes . This software , innovating the analysis of internal fault of generators and the design of main protection , is oriented to the design and setting of main protection scheme of large- and medium-capacity generators .更多还原