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쿼드로터 시스템의 강인 추종 제어를 위한 적분 슬라이딩 모드 기반 외란 관측기 및 제어기 설계
임채윤(Chaiyoon Lim),허준서(Junseo Heo),좌동경(Dongkyoung Chwa) 대한전기학회 2022 전기학회논문지 Vol.71 No.1
In this paper, an integral sliding mode disturbance observer (ISMDO)-based integral sliding mode controller (ISMC) design method is proposed for robust tracking control of the position and attitude angles of a quadrotor system with disturbances. First, the dynamics of the quadrotor system is modeled including disturbances. Second, the disturbances are estimated and compensated for by designing the ISMDO. Third, a virtual attitude angle generator is used to control to follow a desired position, and a robust controller is designed to track the desired value of the system. Finally, simulations are performed to verify the proposed control method to show that the proposed robust control method is very effective compared to the methods using only one of the ISMC and the nonlinear disturbance observer.