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This article provides a boundary output feedback control strategy for variable-length deep-ocean suspended cable systems, addressing actuator constraints and external disturbances. To accurately characterize the system’s dynamic behavior and avoid truncation errors introduced by discretization, the system is modeled using partial differential equations. In the presence of partially unmeasurable states, an auxiliary system, a disturbance observer, and a high-gain estimator are incorporated to construct a boundary output feedback controller that guarantees the system’s performance. Rigorous theoretical analysis establishes the ultimate boundedness of the closed-loop system, and simulations further confirm the reliability of the desired control scheme.

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Boundary Output Feedback Control of Deep-Ocean Hanging Cable Structures Subject to Actuator Constraints

  • 会议论文

  • 发表日期：

    2026年

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  • Qinglin Wu,
  • Xuanxiong Zhang,
  • Chaoli Wang,
  • Shanshan Wang

摘要

This article provides a boundary output feedback control strategy for variable-length deep-ocean suspended cable systems, addressing actuator constraints and external disturbances. To accurately characterize the system’s dynamic behavior and avoid truncation errors introduced by discretization, the system is modeled using partial differential equations. In the presence of partially unmeasurable states, an auxiliary system, a disturbance observer, and a high-gain estimator are incorporated to construct a boundary output feedback controller that guarantees the system’s performance. Rigorous theoretical analysis establishes the ultimate boundedness of the closed-loop system, and simulations further confirm the reliability of the desired control scheme.