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QIU Shuai, Lü Rui, FAN Hui, WAN Ya-min, HUANG Hai, YANG Guan-jin-zi. Fault-Tolerant Control Method for an Underwater Robot Based on the CAM Matrix[J]. Journal of Unmanned Undersea Systems, 2021, 29(1): 104-110. doi: 10.11993/j.issn.2096-3920.2021.01.015
Citation: QIU Shuai, Lü Rui, FAN Hui, WAN Ya-min, HUANG Hai, YANG Guan-jin-zi. Fault-Tolerant Control Method for an Underwater Robot Based on the CAM Matrix[J]. Journal of Unmanned Undersea Systems, 2021, 29(1): 104-110. doi: 10.11993/j.issn.2096-3920.2021.01.015

Fault-Tolerant Control Method for an Underwater Robot Based on the CAM Matrix

doi: 10.11993/j.issn.2096-3920.2021.01.015
  • Received Date: 2020-10-13
  • Rev Recd Date: 2020-11-19
  • Publish Date: 2021-03-01
  • The poor control effect of an underwater robot thruster after failure often prevents specific tasks from being completed and may even cause the loss of the robot. To address this problem, this study proposes a fault-tolerant control method for an underwater robot based on a control allocation machine(CAM) thrust distribution matrix. The CAM matrix is used to reconstruct the distribution to ensure stable navigation of the robot, and a thrust distribution strategy for achieving maximum resultant forces is identified using a sequential quadratic programming method. The effectiveness of the proposed method is verified through a simulation. Simulation results show that the proposed fault-tolerant control method can handle partial or complete failure of the thruster and can ensure that the robot achieves good performance and stable navigation

     

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