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Movement Control in Recovering UUV Based on Two-Stage Discrete T-S Fuzzy Model

Author

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  • Zheping Yan
  • Bing Hao
  • Yibo Liu
  • Shuping Hou

Abstract

A two-stage discrete T-S fuzzy model controller, which is formed by a motion controller and a dynamic controller connected in series, is presented to solve UUV (unmanned underwater vehicle) movement control problem for recovering. The motion controller is designed based on the uncertain T-S model and the concept of discrete fuzzy vector. The position error between UUV and moving platform as the input of the motion controller is converted into the speed commands of UUV at the next time. The dynamic controller design is based on the theory of fuzzy region model and a relaxed condition for Lyapunov stabilization function is derived in the form of linear matrix inequalities, which generate force and torque required to complete the recovery task. The feasibility and the efficiency of the proposed control scheme are illustrated through the simulations that UUV follows moving platform.

Suggested Citation

  • Zheping Yan & Bing Hao & Yibo Liu & Shuping Hou, 2014. "Movement Control in Recovering UUV Based on Two-Stage Discrete T-S Fuzzy Model," Discrete Dynamics in Nature and Society, Hindawi, vol. 2014, pages 1-11, November.
    • Handle: RePEc:hin:jnddns:362787
    DOI: 10.1155/2014/362787
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