Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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A Study on Power Factor and Dynamics in Arc Welding System Using Single Switched PFC Converter

  • Choi, Hae-Ryong (Dept. of Electrical Engineering, Kon-Kuk University,) ;
  • Mok, Hyung-Soo (Dept. of Electrical Engineering, Kon-Kuk University,) ;
  • Goo, Young-Mo (Dept. of Electrical Engineering, Kon-Kuk University,) ;
  • Kim, Gyu-Sik (Dept. of Control and Measurement, Seoul City University) ;
  • Choe, Gyu-Ha (Dept. of Electrical Engineering, Kon-Kuk University,) ;
  • Won, Chung-Yun (Dept. of Electrical Engineering, Sungkyunkwan University)
  • Published : 1998.10.01
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Abstract

An arc welding machine using single switched PFC converter is presented in this paper. First, the basic operation and principle is reviewed. Controller design is intended to force voltage ripple to minimize, and dynamic response to enhance, Feed-forward strategy for arc welding machine is developed, and that is verified by simulation. The improved power factor characteristics of arc welding machine known as low power factor system with nonlinear property, are shown and evaluated compared to conventional one.

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