基于MATLAB的车载发电励磁系统研究

摘要

励磁系统是发电机的核心部分,一般由励磁功率单元和励磁调节器(AVR)组成.励磁系统性能的高低直接影响着发电质量和系统运行的可靠性稳定性.车载发电机有着转速变化剧烈的特点,利用交流励磁机转速变化范围宽,过载能力强的优良特性,可为我军大功率特装设备提供稳定可靠的制式电能.利用MATLAB/Simulink可视化的仿真环境对交流发电机励磁系统进行了设计.实验证明所设计系统对负载变化和系统干扰有着良好的调节能力.%Excitation system is the vital part of the generator, which consists of excitation power unit and automatic voltage regulator usually. The quality of the excitation system has great effects on the power quality and reliability of the grid. The engine of the car cant run at a steady speed while the rotor of AC excited generator can run at a large range and overtake the heavy load* So it can be used to supply steadily power for the equipment of the PLA. A new simulation model based MATLAB aimed at excitation system of the generator is proposed in this paper. The result of the experiment shows the excitation system have good effort to keep the system steady when the load and interfere change.