开关磁阻电机结构简单、成本低、控制灵活并能适应恶劣的工作环境，逐渐在家用电器、航空、电动汽车和风力发电中得到了广泛的应用。随着能源问题和环境问题的日益突出，开关磁阻电机在发电领域的研究受到了越来越多的重视。 以开关磁阻发电机控制系统为研究对象，基于脉宽调制控制提高系统输出电压的稳定性。阐述了开关磁阻发电机的基本结构和运行原理，对发电机励磁和发电过程进行了分析。讨论了发电机的自励和他励两种发电模式和三种控制方式：角度位置控制、电流斩波控制、脉宽调制控制，为发电控制系统的设计奠定了基础。确定了开关磁阻发电机的数学模型，并建立了开关磁阻发电机的Matlab/Simulink仿真模型，详细介绍了模糊PI控制器的控制原理以及模糊规则表的整定过程。 在仿真模型的基础上，分析了开通角、关断角、励磁电压、原动机转速以及PWM占空比对开关磁阻发电机输出电压的影响。在常规PID算法下实现了输出电压跟随跟定电压，并针对仿真中出现的输出电压达不到给定的情况，分析了系统建压失败的原因。由于常规PID控制下的开关磁阻发电机输出电压超调大，响应慢等缺点，采用了模糊控制和PID控制相结合的控制算法—模糊PI控制。通过仿真对比，说明模糊PI控制相比PID控制具有更好的自适应性和稳定性。 完成了基于TMS320F28335的开关磁阻电机发电系统软硬件设计和部分调试工作。并在实验平台上实现了PID控制器和模糊PI控制器控制下的开关磁阻发电机发电实验研究。结果表明模糊PI控制相比PID方法在开关磁阻发电机系统中有更好的的自适应性和动态性能。

Switched reluctance motors are simple in structure, low in cost, flexible in control, and able to adapt to harsh working environments, and have been widely used in household appliances, aviation, electric vehicles, and wind power generation. With the increasingly prominent energy issues and environmental issues, the research of switched reluctance motors in the field of power generation has received more and more attention. Taking the switched reluctance generator control system as the research object, the stability of the output voltage of the system is improved based on pulse width modulation control. The basic structure and operating principle of the switched reluctance generator are described. The process of generator excitation and power generation is analyzed. Two generator modes, self-excited and self-excited, and three control modes were discussed: angular position control, current chopping control and pulse width modulation control, which laid a foundation for the design of power generation control system. The mathematical model of the switched reluctance generator is determined, and the Matlab/Simulink simulation model of the switched reluctance generator is established. The control principle of the fuzzy PI controller and the setting process of the fuzzy rule table are introduced in detail. Based on the simulation model, the influences of turn-on angle, turn-off angle, excitation voltage, prime mover rotation speed and PWM duty cycle on the output voltage of the SRG are analyzed. In the conventional PID algorithm, the output voltage follows the fixed voltage and the output voltage appears in the simulation can not reach the given situation. The reasons for the failure of the system construction are analyzed. Due to the disadvantages of large output voltage and slow response of the switched reluctance generator under conventional PID control, fuzzy control and PID control combined with fuzzy PI control are adopted. Through simulation and comparison, the fuzzy PI control has better adaptability and stability than PID control. Completed the TMS320F28335 based switched reluctance motor power system hardware and software design and some debugging work. And on the experimental platform, the experimental research on the SRG of the SR controller and fuzzy PI controller is implemented. The results show that the fuzzy PI control has better adaptability and dynamic performance in the switched reluctance generator system than the PID method.