Modeling and Simulation of GMAW-P Welding Power-arc System

Abstract

Abstract: Due to nonlinear and time variable characteristics of GMAW-P arc welding, the research and design of GMAW-P welding power source and the selection of its control parameter have intrinsic difficulty. The dynamic simulation model of the GMAW-P welding power source and arc system based on S-function module design of Matlab/Simulink software is built. The study of dynamic arc length disturbance of GMAW-P welding power source and arc system is implemented after finishing optimum design of controller parameters. The results of simulation are well in consistent with those of welding experiments, which proves the correctness of this simulation model, the adaptability of controller parameters and dynamic performance of welding control system. Thus a new approach for modeling study and controller parameter design of GMAW-P welding power source is provided.

Key words: Arc, Matlab simulation, Power source, Pulse gas metal arc welding

CLC Number:

TG434

HUA Xueming;SONG Zheng;LI Fang;WU Yixiong;FAN Yong. Modeling and Simulation of GMAW-P Welding Power-arc System[J]. , 2010, 46(8): 78-82.

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Modeling and Simulation of GMAW-P Welding Power-arc System

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