关键词: 三相交流励磁系统, 单相交流励磁方式, 切换, 起动/发电一体化

Abstract:

The three phase AC excitation system switches to single-phase excitation mode in the high speed range helps the main motor to field weakening operation. A mathematical model of three-phase AC excitation system in single-phase AC excitation mode was established. The operation characteristics of single-phase AC excitation mode were analyzed. At the same time, the switching time of three phase and single-phase excitation mode was analyzed.The influence of the switching time on the excitation current of the main motor when the three-phase AC excitation system was switched to single-phase AC excitation was studied. Simulation and experiment prove that the model and characteristic analysis are correct and effective.

Key words: three phase AC excitation system, single-phase AC excitation mode, switching, starter generator integrated