Tuning PID control of an automatic arc welding system using a SMAW process

被引:12
|
作者
Huang, Yan-Wen [1 ]
Tung, Pi-Cheng [1 ]
Wu, Cheng-Yu [1 ]
机构
[1] Natl Cent Univ, Dept Mech Engn, Chungli 320, Taiwan
关键词
shielded metal arc welding (SMAW); genetic algorithm; PID controller; electrode feed;
D O I
10.1007/s00170-006-0569-4
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A new method to tune the gains of the proportional integral derivative (PID) controller for alternating current shield metal arc welding (SMAW) of automatic arc welding system using a SMAW process is presented in this paper. This method used the genetic algorithm (GA) approach to optimize the gains of the PID auto-tuner and considerably modulated the rate of an electrode feed mechanism that regulates arc current. The proposed controller was verified by simulation and experiments of the transient response in the automatic arc welding system. Finally, the performance indices of the proposed controller are compared with that based on Ziegler-Nichols tuning rules.
引用
收藏
页码:56 / 61
页数:6
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