CO2短路过渡焊电弧电压自寻优模糊控制系统

CO2 短路过渡焊机一元化控制是通过单旋钮将影响短路过渡频率的主要规范参数电弧电压和焊接电流有机结合在一起 ,通过单旋钮调节焊接电流 ,电弧电压随电流相应变化 ,形成最佳匹配而获得最高短路过渡频率。但由于CO2 短路过渡过程目前尚难以用精确数学模型来描述 ,所以通过一般控制方法所实现的一元化控制并未真正实现单旋钮调节。针对这一不足 ,研究了一种以 16位 80C196KC数字单片机为核心器件通过软件方式实现的CO2 短路过渡焊电弧电压自寻优模糊控制系统。系统以操作者所选择的焊接电流为唯一设定参数 ,自动对电弧电压进行以实现最高短路频率为目标的自寻优 ,可使此类焊机实现真正单旋钮调节为特征的一元化控制

Arc Voltage Self optimizing Fuzzy Control System of Short circuit Transfer Arc Welding under Carbon Dioxide

Unifying control of carbon dioxide are welding machine adjusts the welding current and voltage by turning one knob only,chaff.ging current directily and corresponding arc voltage indirectly, to obtain the optimum match and ultimate short circuit transfer frequency. However,the transfer process of carbon dioxide short circuit arc welding is difficult to be described in accurate model,and the unifying control method by traditional controlling theory is not realyy one knob adjustment. Aimed at this issue, the authors present an arc voltage self optimizing fuzzy control system of carbon dioxide short circuinting transfer welding, its key component is a 16 bit 80C196KC single chip microcomputer, and the funzzy control is realized by software programming. to aim at the optimum result of ultimate frequency of short circuiting transfer and according to the only selected value of welding current,the arc voltage can the automatically adjusted to the optimum value to really realize the unifying control of oneknob adjustment.