摘要
针对L-WEDM电极丝速度与张力不恒定时会严重影响产品的表面质量和加工精度的问题,提出一种双机转速差加载式的恒速恒张力智能PID控制系统的设计方案.基于电极丝恒速恒张力的控制原理,设计了控制系统的信号采集和H桥驱动等核心硬件电路.利用MATLAB/Simulink软件平台搭建了恒速恒张力智能PID控制系统的仿真模型,仿真实验结果表明:智能PID控制系统可较好地实现L-WEDM电极丝的速度和张力的恒定,比传统PID具有超调量小、误差率低等良好的控制品质.
Based on the problem that the non-constant speed and tension of wire seriously affects the surface quality and precision of products for the L-WEDM,we propose a design scheme of the constant speed and tension intelligent PID control system using double machine speed difference load type.The hardware core circuits which include the signal acquisition circuit and the H-bridge driver circuit of the control system are designed based on the constant speed and tension control principle of wire.The simulation models of the constant speed and tension intelligent PID control system are built using MATLAB/Simulink software platform.Experimental simulation results show that the intelligent PID control system effectively achieves constant L-WEDM wire speed and tension,and has better performance than conventional PID,such as small overshoot and low error rate,etc.
出处
《延边大学学报（自然科学版）》
CAS
2013年第2期116-121,共6页
Journal of Yanbian University（Natural Science Edition）
基金
福建省教育厅A类科技项目(JA12348)
宁德师范学院服务海西建设"校级青年资助"项目(2011HQ108)
宁德师范学院"服务海西建设"项目(2011H201)
关键词
恒速恒张力控制
双机转速差加载式
信号采集电路
H桥驱动电路
智能PID
constant speed and tension control
double machine speed difference load type
signal acquisition circuit
H-bridge driver circuit
intelligent PID
