基于模糊PID控制的同步发电机励磁控制系统仿真研究

随着电力系统的发展,常规PID励磁控制器已经不能满足系统运行的动态和静态性能要求,为了克服常规PID控制器的缺点,设计了一种新型的模糊PID控制器,即将常规的PID控制与模糊控制优点相结合。分析了同步发电机的励磁控制系统的数学模型和模糊PID控制器的结构、工作原理和作用,并运用Simulink对模糊PID控制器和常规PID控制器分别在同步发电机励磁系统中进行仿真,结果表明,模糊PID控制器具有更好的控制特性,对进一步应用研究具有较大的参考价值。

Simulation of synchronous excitation controller based on fuzzy-PID control

With the development of power system, routine PID controller could not satisfy the requirement of systemic dynamic and static performances. In this paper, in order to overcome the shortcoming of routine PID controller, a new kind of fuzzy-PID controller is designed. The new fuzzy-PID controller combines the advantages of routine PID controller and fuzzy logic controller. The mathematical model of synchronous excitation system and the architecture, principle and function of the fuzzy-PID controller are analyzed. And the application of the routine PID controller and fuzzy-PID controller in synchronous excitation system are studied with Simulink. The results show that the fuzzy-PID controller gives a better control performance and has reference value in the further applied research.