基于模糊自适应PID的钢管定长切割控制系统  

Steel pipe's fixed-length cutting control system based on fuzzy self-adaptive PID

作　　者：盛强[1] 

机构地区：[1]湖州职业技术学院机电工程分院,浙江湖州313000

出　　处：《机电工程》2011年第11期1354-1357,共4页Journal of Mechanical & Electrical Engineering

基　　金：浙江省高校优秀青年教师计划资助项目(2010);湖州职业技术学院校级规划课题资助项目(2011JS03);湖州职业技术学院第二轮青年教师队伍建设专项培养计划资助项目(2010)

摘　　要：针对钢管定尺飞锯传统定长切割控制策略存在的问题,提出了采用模糊自适应PID的控制策略。控制器输入取钢管的定长切割偏差e和偏差变化率ec,输出取PID控制器3个参数的修正量,从而实现了PID参数的在线自整定。采用Matlab语言,进行了常规PID控制与模糊自适应PID控制动态性能的仿真比较。研究结果表明,采用模糊自适应PID控制可明显提高定尺飞锯定长切割控制系统的动态性能。Aiming at the weak points of traditional steel pipe＇s fixed-length cutting control method on flying-saw machine, a control strategy based on the fuzzy self-adaptive PID method was proposed. The inputs required by the control model are fixed-length eutting error and the error ehange rate, and the model gives the correct additional setpoint for the three parameters of PID control individually. Thus the on-line automatic adjustment of the PID parameters was achieved. The fuzzy self-adaptive PID control was compared with traditional PID by simulation through Matlab. The results indicate that the steel pipe＇s fixed-length cutting dynamic control performs much better by using the fuzzy self-adaptive PID control strategy.

关 键 词：定尺飞锯 定长切割 模糊自适应PID控制 MATLAB 

分 类 号：TH39[机械工程—机械制造及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]