慢走丝线切割机恒速恒张力智能系统的设计与仿真  

Design and simulation of intelligent systems of constant speed and tension for WEDM-LS

作　　者：宋萌萌[1] 

机构地区：[1]宁德师范学院物理与电气工程系,宁德352100

出　　处：《现代制造工程》2013年第10期79-86,38,共9页Modern Manufacturing Engineering

基　　金：福建省教育厅A类科技项目(JA12348);宁德师范学院"校级青年资助"项目(2011HQ108);宁德师范学院"服务海西建设"一般项目(2011H201)

摘　　要：慢走丝电火花线切割机在加工过程中电极丝易出现速度与张力不稳定的问题,影响加工质量和效率,因此,提出一种智能的双机转速差加载式调节速度与张力的设计方案。根据电极丝速度与张力系统的控制环节,建立其数学模型。通过设计模糊PID和BP神经网络PID两种算法,分别实现了电极丝恒速恒张力的PID参数的自调整。利用MATLAB软件完成系统的动态性能与抗干扰性能的实验仿真,实验结果表明:与传统PID控制相比,慢走丝线切割机的智能PID恒速恒张力控制系统具有动态性能好、抗干扰能力强等品质。WEDM-LS＇ wire electrode in the process is prone to instability in the speed and tension, affects the processing quality and efficiency. Propose the design of intelligent dual-speed difference load to adjust the speed and tension. According to the speed and tension control links of electrode wire, have established its mathematical model. Through the two algorithms design of fuzzy- PID and BP neural network PID, the self-tuning PID parameters of constant speed and tension of the wire electrode are respective- ly achieved. Complete the experimental simulation of the dynamic performance and anti-jamming performance using MATLAB software. The simulation results show that：compared with the traditional PID control, the intelligent PID constant speed and ten- sion control system of WEDM-LS has better dynamic performance, stronger anti-interference ability, etc.

关 键 词：慢走丝线切割机 恒速恒张力 模糊PID BP神经网络PID 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]