基于模糊自适应PID技术的励磁控制器研究

Research on Excitation Controller Based on Adaptive Fuzzy-PID Technique

现代电力系统处于高速发展阶段,对于电力系统的动态、静态稳定性有了越来越高的要求,传统的PID控制器已经难以满足现代电力系统的要求。研究了一种模糊推理和PID相结合的参数自适应控制方法,分析了同步发电机励磁控制系统的数学模型和模糊PID励磁控制的推理方法,并用simulink对传统PID控制和模糊PID控制进行了仿真研究。研究分析表明模糊自适应PID励磁控制器具有较好的控制效果和很强的鲁棒性。

Modem power system is in a high-speed development stage,and there are higher and higher requirements in the dynamic and static stability of power system. It is difficult to use the traditional PID controller to meet the requirements of modem power system. This paper researches on a kind of parameters adaptive controller method that fuzzy inference is combined with PID, analyzes the mathematical model of the excitation system of the asynchronous generator and the inference method of fuzzy-PID excitation controller and simulates the traditional PID and fuzzy-PID controllers with simulink. The research report shows that the fuzzy-PID adaptive controller has better control performance and stronger robustness.