• CN:11-2187/TH
  • ISSN:0577-6686

›› 2005, Vol. 41 ›› Issue (11): 207-212.

• 论文 • 上一篇    下一篇

短路过渡CO2焊全数字控制系统

冯曰海;刘嘉;殷树言;卢振洋   

  1. 北京工业大学机械与应用电子技术学院
  • 发布日期:2005-11-15

FULLY DIGITAL CONTROL SYSTEM FOR CO2 SHORT-CIRCUIT WELDING

Feng Yuehai;Liu Jia;Yin Shuyan;Lu Zhenyang   

  1. College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology
  • Published:2005-11-15

摘要: 以短路过渡CO2焊全数字控制系统设计和实现为背景,针对全数字控制设计面临的新问题,应用分级递阶智能控制理论,有机地将数字PI控制器、模糊控制器和专家系统结合起来,使控制层次清晰化,实现方案简单化。试验证明,应用该系统在短路过渡区间实现了CO2焊较为理想的波形控制,弧长控制稳定,焊丝伸出长度变化的适应性增强,焊接过程控制智能化。

关键词: 短路过渡CO2焊, 分级递阶智能控制, 全数字控制

Abstract: The hierarchically intelligent control theory is applied in order to realize the fully digital control system for CO2 short-circuit welding. This system integrates the digital PI controller, fuzzy controller and expert system, which make control levels clearer and design scheme easier. The experimental results validate this system can attain ideal waveform control for CO2 short-circuit welding, increase welding arc stability, improve welding process adaptability for the wire extension change and control welding process intelligently.

Key words: CO2 short-circuit welding, Fully digital control, Hierarchically intelligent control

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