模糊PID控制在机车速度控制中的应用

Application of fuzzy PID control in locomotive speed control

根据机车速度控制系统具有非线性且在运行过程中受外界干扰较多等特点,传统的PID控制器受条件制约很难达到理想的控制效果。故首先介绍了模糊自适应的基本理论,研究设计了模糊自适应PID速度控制器,最后对设计的控制器仿真。仿真结果表明,与传统的PID速度控制器相比,模糊自适应PID速度控制器超调量更小,调节时间更短,在控制精度上也有了提高。

Ccording to the characteristics that the locomotive speed control system has nonlinearity and is subject to external interference during operation,the traditional PID controller is difficult to achieve the desired control effect under the condition constraints.Therefore,this paper first introduces the basic theory of fuzzy adaptive,researches and designs the fuzzy adaptive PID speed controller,and finally uses matlab to simulate the controller of the design.The simulation results show that compared with the traditional PID speed controller,the fuzzy adaptive PID speed controller has smaller overshoot,shorter adjustment time and improved control precision.