摘要
数控精密校直机电液伺服控制系统具有低阻尼、时变性、非线性等性质,运用常规的PID控制难以达到满意的控制效果,运用模糊自适应整定PID控制,结合模糊控制和PID调节的优点,将专家经验用于对PID的kp、ki、kd参数在线自适应整定,增强PID控制器对非线性、时变性系统的调节控制性能,通过仿真实验结果表明:模糊自适应整定PID控制器在数控精密校直机液压伺服系统的控制中,表现出了良好的自适应性、稳定性、鲁棒性,能够用来实现对数控精密精校机电液伺服系统的有效控制。
CNC Precision Alignment machine＇s electro-hydraulic servo system have low-damping, time-varying, non-linear nature and so on, it is difficult to control it effectively with conventional PID control. Using fuzzy control, the experience of experts is used for PID parameters on-line adaptive adjust, it improves the performance of PID controller in the non-linear, time-varying systems; Simulation results show that： adaptive fuzzy-tuning of PID controller has a good anti-interference capability and adaptive tuning capabilities in the non-Linear, time-varying control systems; It can be used to control the precision alignment machine＇ s electro-hydraulic servo system effectively.
出处
《组合机床与自动化加工技术》
北大核心
2009年第8期54-56,共3页
Modular Machine Tool & Automatic Manufacturing Technique
基金
合肥工业大学科学研究发展基金项目(080201F)
关键词
模糊控制PID
电液伺服
数控精密校直机
自适应
非线性
fuzzy control PID
electro-hydraulic servo control
CNC precision alignment machine
adaptive nonlinear
