超精密数控机床的规则可调自适应模糊控制系统的研究  

A Study of the Rule-adjustable Adaptive Fuzzy Control System for Ultra-precision CNC Machine

作　　者：刘启东[1] 徐春广[1] 郝娟[1] 宋禧锋[1] 

机构地区：[1]北京理工大学机械与车辆工程学院,北京100081

出　　处：《机床与液压》2005年第12期121-123,共3页Machine Tool & Hydraulics

摘　　要：介绍了一种能够根据位置误差和误差变化率自动调整模糊规则和比例因子的规则可调自适应模糊控制器。仿真实验表明了该模糊控制系统不但能很好地适应伺服系统的非线性特点,而且具有很高的动态跟踪精度、静态定位精度和鲁棒性。其性能优于PID控制器和常规的模糊控制器,能更好地满足超精密机床数控系统极高的轮廓跟踪精度、定位精度和抗干扰性能的要求。A kind of adaptive fuzzy controller was introduced whose control - rule and scale - gene ean be adjusted by itself according to the system position error and error change ratio. The simulation shows that the fuzzy control system suits for the non - linear characteristic of servo system, and has very high dynamic tracking precision, static position precision anti good robust. It is better than PID controller anti general fuzzy controller, so it ean satisfy the request of very high contour traeking precision, position precision anti anti - disturb for ultra - precision CNC machines.

关 键 词：超精密机床 数控系统 自适应控制 模糊控制 

分 类 号：TM921.541[电气工程—电力电子与电力传动]