Digital control of switch-mode pulsed GMAW welding power

Sha, Deshang; Liao, Xiaozhong

doi:10.1109/ecce.2009.5316198

Cited by 1 publication

(2 citation statements)

References 3 publications

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“…According to the circuit's voltage equation, the back EMF equation, the torque equation and the force balance equation of the direct current motor of the welding wire feeding device, the corresponding mathematical model is as follows: [1] 2 (2)…”

Section: Welding Wire Feed System's Modelmentioning

confidence: 99%

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Robust Speed Control Algorithm of Welding Wire Feed System Based on the State Space Model

et al. 2014

AMM

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In the modern welding technology of metal materials, the welding robot is a very important factor. And the welding wire feeding device is a very important part of the welding robot. The welding wire feed systems stabilization and reliability is essential for the welding quality. The resistance is caused by the draw of welding wire and other factors, which is highly nonlinear and stochastic. The wire feed rate and welding quality will be severely affected by the resistance. This paper investigates the method controlling the system according to the observations of the resistance, speed and other factors. There are the complex environmental factors in the welding process, such as the strong magnetic field and high current field, which are random. So the robust control algorithm based on the state space model is designed to keep the welding wire feed speed stable under disturbances. The robust control method can improve the speed of response and eliminate the effect of wire feed resistance to the wire feed speed. Even when disturbed, the system can quickly reach a stable wire feed speed.

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Section: Welding Wire Feed System's Modelmentioning

confidence: 99%

“…Many high-performance materials' manufacture needs the process of the welding, such as tungsten rhenium alloy. [1] In the modern welding technology of metal materials, the welding robot is a very important factor. And the welding wire feeding device is a very important part of the welding robot.…”

Section: Introductionmentioning

confidence: 99%

Robust Speed Control Algorithm of Welding Wire Feed System Based on the State Space Model

et al. 2014

AMM

View full text Add to dashboard Cite

show abstract

Digital control of switch-mode pulsed GMAW welding power

Cited by 1 publication

References 3 publications

Robust Speed Control Algorithm of Welding Wire Feed System Based on the State Space Model

Robust Speed Control Algorithm of Welding Wire Feed System Based on the State Space Model

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