基于离散滑模原理的位置伺服系统模糊控制器设计

Discrete Slide-mode Based Fuzzy Controller Design for Position Servo System

针对位置伺服系统,根据离散滑模控制的原理和模糊控制理论,设计了一种新型离散滑模控制器,以指令信号的前馈作为平均控制,采用模糊推理来调节开关控制的幅度,有效地削弱了系统的"抖振"。实验研究表明,由控制器构成的位置伺服系统.能很好地实现对指令信号的跟踪,具有较强的抗参数摄动和抗干扰能力,表现出良好的控制性能。

A new discrete slide-mode controller is designed for position servo system according to discrete slide-mode control theory and fuzzy control theory.By the feed forward signal of command signal is used as average control,and fuzzy inference is used to regulate the magnitude of on-off control,system chattering is decreased effectively.Experiment study shows that position servo system using this controller can realize the track of command signal accurately,and has strong ability of resisting parameter distortion and rejecting chattering.exhibits good control performance.