【摘要】 由于水电机组调速系统控制对象——水轮机的运行工况在不断变化,描述水轮机动态特性的数学模型及引水系统的模型参数时刻发生变化,常规PID控制的应用受到限制。文中引入了模糊控制理论,使用参数自适应模糊PID控制器替代常规PID控制器,通过仿真结果显示,对水电机组过渡过程的控制具有明显的效果。更多还原

【Abstract】 A hydroturbine unit is a nonlinear complex system. Its dynamic performance and parameters vary with time, and that limits the use of the conventional PID controller. The fuzzy control theory is introduced in this paper. A self-adaptive fuzzy-PID controller is proposed and used for the governor of hydroturbine unit. The simulation result based on MATLAB shows better control performance of the controller.更多还原