Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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The Design of Sliding Mode Controller with Nonlinear Sliding Surfaces

비선형 스위칭 평면을 이용한 슬라이딩모드 제어기 설계

  • Cho, Hyun-Seob (Dept. of Digital Broadcasting & Electronic Engineering, Chungwoon Univ.)
  • 조현섭 (청운대학교 디지털방송공학과)
  • Published : 2009.12.31
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Abstract

This study develops a variable structure controller using the time-varying nonlinear sliding surface instead of the fixed sliding surface, which has been the robustness against parameter variations and extraneous disturbance during the reaching phase. By appling TS algorithm to the regulation of the rionlinear sliding surface, the reaching time of the system trajectory is faster than the fixed method. This proposed scheme has better performance than the conventional method in reaching time, parameter variation and extraneous disturbance. The effectiveness of the proposed control scheme is verified by simulation results.

본 논문은 고정 슬라이딩면을 갖는 가변 구조 제어기의 단점인 도달영역에서의 파리미터의 불확실성과 외부 외란에 대한 민감성을 감소시키는 방안으로 고정 슬라이딩면 대신 비선형 슬라이딩면을 제시한다. 비선형 슬라이딩면을 통하여 시스템 상태 궤적이 초기 위치에서부터 평형점에 이르기까지 외란과 파라미터의 불확실성에 강인하게 되며 아울러 고정 슬라이딩면까지의 도달시간 뿐만 아니라 평형점까지의 도달시간도 감소하게 되는 특성을 보이고자한다. 제안된 제어 구조의 효과는 시뮬레이션을 통해 증명하였다.

Keywords

References

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