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Adaptive Quasi-Super-Twisting Sliding Mode Control for Flexible Multistate Switch

Author

Listed:
  • Wenzhong Ma

    (College of New Energy, China University of Petroleum (East China), Qingdao 266580, China)

  • Xiao Wang

    (College of New Energy, China University of Petroleum (East China), Qingdao 266580, China)

  • Yusheng Wang

    (PetroChina Planning and Engineering Institute, Beijing 100083, China)

  • Wenyan Zhang

    (College of New Energy, China University of Petroleum (East China), Qingdao 266580, China)

  • Hengshuo Li

    (College of New Energy, China University of Petroleum (East China), Qingdao 266580, China)

  • Yaheng Zhu

    (College of New Energy, China University of Petroleum (East China), Qingdao 266580, China)

Abstract

The mathematical model of a flexible multistate switch (FMSS) exhibits nonlinear and strong coupling characteristics, whereas traditional power decoupling control makes it difficult to completely decouple the output power. The traditional proportional–integral control parameters are difficult to adjust, and their robustness and dynamic performance are poor, which affects the stability of the voltage of the power distribution network and feeder power. To address these problems, this study first converted the original system into a linear system via coordinate transformation using feedback-accurate linearization to decouple active and reactive currents. Thereafter, a super-twisting sliding mode control (ST-SMC) algorithm was introduced, and an adaptive quasi-super-twisting sliding mode control (AQST-SMC) algorithm comprising the quasi-sliding mode function and adaptive proportional term was proposed. An FMSS double closed-loop controller was designed to achieve improved vibration suppression and convergence speed. A three-port FMSS simulation model was developed using MATLAB/Simulink, and the simulation results show that the proposed control strategy enhances the robustness and dynamic performance of the system.

Suggested Citation

  • Wenzhong Ma & Xiao Wang & Yusheng Wang & Wenyan Zhang & Hengshuo Li & Yaheng Zhu, 2024. "Adaptive Quasi-Super-Twisting Sliding Mode Control for Flexible Multistate Switch," Energies, MDPI, vol. 17(11), pages 1-24, May.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:11:p:2643-:d:1405025
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    References listed on IDEAS

    as
    1. Zhengqi Wang & Liusen Sheng & Qunhai Huo & Sipeng Hao, 2021. "An Improved Model Predictive Control Method for Three-Port Soft Open Point," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-22, June.
    2. Aithal, Avinash & Li, Gen & Wu, Jianzhong & Yu, James, 2018. "Performance of an electrical distribution network with Soft Open Point during a grid side AC fault," Applied Energy, Elsevier, vol. 227(C), pages 262-272.
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