驼峰车辆减速器闭环控制PD参数模糊在线自校正

基于参数模糊在线自校正的原理,提出一种对驼峰车辆减速器控制系统控制参数按调速过程进行模糊在线自校正的控制方法。针对车辆减速器控制系统的特点和性能要求,设计减速器模糊在线自校正控制器,以调速过程中速度误差及其变化为输入语言变量,建立模糊控制规则;根据模糊控制规则在线调整PD控制器的参数,使控制器能较好地适应减速器闭环控制定速设定及过程参数时变。本控制方法在实际系统中进行了试验,结果表明,与常规PD控制相比,模糊在线自校正PD参数控制器有较好的控制性能和较强的鲁棒性,可使系统的控制精度有明显的提高。

PD Parameters Fuzzy Self-Tuning of Car Retarder Feedback Control for Hump Yard

Based on the conception of fuzzy self-tuning PD parameters,an approach of retarder control is proposed,which can fuzzy self-tune the parameters of car retarder control system for hump yard according to speed regulating process.Aiming at the characteristics of car retarder control system and its performance requirement,a fuzzy self-tuning PD controller for retarder control is designed.It takes speed error and its change as fuzzy variables to determine the fuzzy control rules.Using the determined rules,the parameters of PD controller is adjusted on-line,which can be adapted well to required speed and the process parameter variation of retarder feedback control.This control approach is applied to a hump yard speed control system.The experimental results show that the fuzzy self-tuning PD controller has better performance,and is more robust than normal PD controller.It is useful to improve the speed control precision of retarder control system.