CASIA OpenIR  > 复杂系统管理与控制国家重点实验室  > 先进机器人
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
Conference NameControl And Decision Conference (CCDC)
Pages3945-3950
Conference Date2017-05
Conference PlaceChongqing, China
Abstract
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.
KeywordElectro-gas Welding Arc Length Control Ac Servo Ball Screw
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://ir.ia.ac.cn/handle/173211/20887
Collection复杂系统管理与控制国家重点实验室_先进机器人
Affiliation1.Institute of Automation, Chinese Academy of Sciences
2.University of Chinese Academy of Sciences
Recommended Citation
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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