Servo system to control Arc length for electro-gas welding equipment
Mao, Yijian1,2; Yang, Lei1,2; Jing, Fengshui1; Liang, Zize1; Zhao, Weiqing1
2017-07
会议名称Control And Decision Conference (CCDC)
页码3945-3950
会议日期2017-05
会议地点Chongqing, China
摘要
Automatic welding equipment with arc length control for electrolytic aluminum plant is  designed. The servo system is composed of AC servo motor, ball screw, electro-gas (EGW) power, base material to be welded and servo controller. The welding power is installed of numerical communication port of welding current, providing information of velocity error between welding pool and gun. MIMO model of welding process is simplified into a linear error amplified. Dynamics of AC servo motor and ball screw with external load are analyzed. And a list of parameters is provided for further controlled design. The system is essentially a multi-loop control system. The internal loop of PID controller is tuned first. And then the whole system with PD controlled is tuned, so that the overshoot (􀊍%) and stabilization time (ts) is comfortable. At last, with the help of Simulink, arc control performance test is conducted. It proves that the system can keep arc length almost constant. This method is practical and easy to be realized for industrial application.
关键词Electro-gas Welding Arc Length Control Ac Servo Ball Screw
收录类别EI
语种英语
文献类型会议论文
条目标识符http://ir.ia.ac.cn/handle/173211/20887
专题复杂系统管理与控制国家重点实验室_先进机器人
作者单位1.Institute of Automation, Chinese Academy of Sciences
2.University of Chinese Academy of Sciences
推荐引用方式
GB/T 7714
Mao, Yijian,Yang, Lei,Jing, Fengshui,et al. Servo system to control Arc length for electro-gas welding equipment[C].Control And Decision Conference (CCDC). Chongqing, China. 2017-05.
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