说明：  同步发电机突然三相短路的仿真模型，由mdl和m文件构成，mdl建立了仿真模型，m文件进行数值计算，文件中有详细的注释，可移植性强，仿真结果与数值计算结果基本一致。
(Synchronous generators sudden three-phase short circuit simulation model by the MDL and m files the mdl to establish the simulation model, m files for numerical calculation, detailed notes in the file, portability, simulation results and numerical results are basically the same .)