基于模糊PID控制液压机床滑台伺服控制稳定性研究  

Research on Stability of Sliding Table Servo Control of Machine Tool Based on Fuzzy PID Control

作　　者：李伟[1] 杨利荣[2] LI Wei;YANG Li-rong(Aviation Manufacturing Engineering Center,Xian Aviation Vocational Technical College,Xi an710089,China;School of Computer Engineering,Xian Aeronautical vocational and Technical College,Xi an710089,China)

机构地区：[1]西安航空职业技术学院航空制造工程中心,陕西西安710089 [2]西安航空职业技术学院计算机工程学院,陕西西安710089

出　　处：《液压气动与密封》2018年第8期8-12,共5页Hydraulics Pneumatics & Seals

摘　　要：传统机床滑台位置伺服控制系统的非线性、多耦合、不稳定性等不足,单独的PID控制算法难以达到系统的要求,提出了模糊控制与PID控制相结合的控制方法。介绍了机床的整体结构、滑台位置控制模型、以及模糊PID原理,利用MATLAB软件建立机床滑台位置模糊PID控制模型,对PID控制和模糊PID控制等两种控制方法模型进行实验仿真。实验数据表明相比常规PID控制方式,模糊PID具有很好的自适应性,响应速度、稳定性、准确性都得到了改善,验证了该控制方法设计的合理性,满足我们的设计要求。The nonlinear,multiple coupling and instability of the position servo control system of the traditional machine tool are not enough,the PID control algorithm is difficult to meet the requirement of the system,and the control method of fuzzy control and PID control is put forward.This paper introduces the whole structure of the machine tool,the position control model of slide table and the principle of fuzzy PID,establishes the fuzzy PID control model of the machine tool slide position by MATLAB software,and simulates two kinds of control methods such as PID control and fuzzy PID control.The experimental data show that the fuzzy PID controller has good adaptability,the response speed,the stability and the accuracy are improved compared with the conventional PID control mode,which verifies the rationality of the control method design and satisfies our design requirement.

关 键 词：数控机床 伺服控制 实验仿真 模糊PID 

分 类 号：TH137[机械工程—机械制造及自动化] TP27[自动化与计算机技术—检测技术与自动化装置]