Continuous Nonsingular Terminal Sliding Mode Control with Integral-Type Sliding Surface for Disturbed Systems: Application to Attitude Control for Quadrotor UAVs under External Disturbances
- Authors
- Nguyen, Ngo Phong; Oh, Hyondong; Moon, Jun
- Issue Date
- Dec-2022
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- Attitude control; continuous sliding mode control; Convergence; finite-time stability; integral-type sliding surface; Moon; nonsingular terminal sliding mode control; quadrotor UAVs; Robust control; Robustness; Sliding mode control; Stability analysis
- Citation
- IEEE Transactions on Aerospace and Electronic Systems, v.58, no.6, pp.5635 - 5660
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE Transactions on Aerospace and Electronic Systems
- Volume
- 58
- Number
- 6
- Start Page
- 5635
- End Page
- 5660
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/185408
- DOI
- 10.1109/TAES.2022.3177580
- ISSN
- 0018-9251
- Abstract
- This paper proposes a continuous nonsingular terminal sliding mode control with integral-type sliding surface (CNTSMC-ISS) framework for disturbed systems, in which we consider two types of finite-time controller: the state feedback CNTSMC-ISS and the disturbance observer-based CNTSMCISS. Compared with the existing sliding mode controllers, the noteworthy contributions of two finite-time controllers in the proposed CNTSMC-ISS framework are the alleviation of the chattering phenomenon, the fast finite-time stability, the singularity-free, and the ease-of-implementation characteristics. In the proposed CNTSMC-ISS framework, we first introduce a nonsingular integral terminal sliding mode surface (NITSMS) such that the finite-time convergence of the system state to zero in the sliding phase is ensured and the singularity problem is avoided. Besides, a finite-time observer is developed to recover the external disturbance. Then, based on the constructed NITSMS with the super-twisting-like algorithm, the state feedback CNTSMC-ISS and the disturbance observer-based CNTSMC-ISS are proposed, which generate the continuous control signals and guarantee the fast finite-time convergence of the system state to the designed sliding surface. Rigorous finite-time stability of the closed-loop system under two proposed controllers is provided. Lastly, we apply two finite-time controllers in the proposed CNTSMC-ISS framework to the attitude control for quadrotor UAVs under external disturbances. Extensive simulation and experimental results are illustrated to prove the effectiveness of the proposed attitude controllers.
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