Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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LMI fuzzy based sliding mode control for DC-DC converter

DC-DC 컨버터의 LMI기반 슬라이딩 모드 제어기 설계

  • Wang, FaGuang (The Department of Electrical Engineering, Changwon National University) ;
  • Park, Seung-Kyu (The Department of Electrical Engineering, Changwon National University) ;
  • Kim, Min-Chan (The Department of Electrical Engineering, Changwon National University)
  • Published : 2009.07.14
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Abstract

Nowadays DC-DC converter has been used widely in electronic production. It has a high requirement in wide input voltage, load variations, stability, providing a fast transient response and lower overshoot. However, it is not easy to be controlled because of its nonlinearity. In this paper, the nonlinear model of DC-DC converter is approximatedby four linear models and sub-controllers are designed by using the LMI guaranteeing the stability of the sub-systems at the same time. For the robust of the control system, an integral sliding mode control (ISMC) is applied together with LMI fuzzy controller. The proposed controller supports a fast and almost no overshooting transient response for the DC-DC converter control.

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