同步发电机叠加强励励磁系统的强励特性分析研究

Analysis of Strong Excitation Characteristics of Superposition Strong Excitation System for Synchronous Generator

摘要:

研究同步发电机叠加强励励磁系统的强励能力，建立叠加强励励磁系统的仿真模型，并与传统自并励励磁系 统进行对比分析，然后构造具有叠加强励励磁系统的发电机 35 kV 电缆输电线路模型。仿真分析结果表明叠加强励 励磁系统的强励能力优于传统自并励励磁系统，且强励过电压不会对发电厂输电电缆绝缘造成影响。

Abstract:

It focuses on the strong excitation ability of superposition strong excitation system for synchronous generator，and a simulation model of superposition strong excitation system is established，which is compared with the traditional self － shunt excitation system． Then the model of 35 kV cable transmission line with the superposition strong excitation system is constructed for the synchronous generator． The simulation result shows that the superposition strong excitation system is better than the traditional one under the forced excitation，and there is not any over － voltage influence on the cable insulation．