同步发电机短路动态过程的Matlab仿真研究

同步发电机是船舶电力系统中重要的设备,准确地分析同步发电机短路动态过程对同步发电机和电网安全保护设计都具有重要的意义。本文以理想化的同步电机为基础,分析了同步发电机的数学方程,并利用Matlab的S-Function函数建立其软件仿真模型,完成了三相短路故障和两相相间短路故障的仿真研究。仿真结果清晰的展示了短路动态过程中电机主要参数的变化情况,证明所采用的仿真方法准确、有效。

Study on Short-circuit Dynamic Process of Synchronous Alternator Based on Matlab Simulation

Synchronous alternator is a key equipment of ship power system and the exact analysis of its short-circuit dynamic process is very important for the alternator and power system protection. Based on an idealized synchronous alternator, this paper analyzes its mathematic equations and builds a software simulation model using matlab s-function. The simulation study of three-phase and phase-to-phase short circuit is finished. The varieties of main parameters in short-circuit dynamic process are revealed vividly by simulation results which prove to be accurate and effective.