Design of Fuzzy Control and Ezpert System Based MIG Arc Welding Invert Power Source

摘要：

Control system based on fuzzy and PI control for MIC welding power source is proposed, aiming at some of deficiencies in the control system based on analogous control technology and single-chip control technology, such as poor flexibility, control precision and reliability. In this control system, the fuzzy control and variable parameter PI control are applied to control the arc voltage and welding current separately, and the parameters of PI controller in different welding conditions are determined by an expert system. A digital signal controller (DSC) and a field programmable gate array (FPGA) realize fuzzy control algorithm and variable parameter PI control algorithm separately. Finally, the hardware circuit and software flow chart of the control system are presented. The experimental results show that the control system based on fuzzy and PI control for MIG welding power source has the advantages of quicker response, better reliability and more stable arc length.

关键词： fuzzy control PI control MIG welding power source DSC FPGA.

作者: Pang Qingle

作者单位: School of Information and Electronic Engineering,Shandong Institute of Business and Technology 191 BinHai Road,264005 Yantai,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 3317-3320

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）