H-infinity Fault-Tolerant Control for Dynamic Positioning Ships based on Sampled-data
- Authors
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Shenhua Yang
Navigation College, Jimei University
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Minjie Zheng
Navigation College, Jimei University
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- Abstract
- This study addresses the robust H? fault-tolerant control problem for dynamic positioning (DP) ships based on sampled-data with actuator fault. First, the actuator-failure mode is established. Then, input delay approach combined with Lyapunov-Krasovskii functional is used to determine the system’s asymptotical stability and achieve H? tracking performance. Then H? fault-tolerant sampled-data controller is obtained by means of linear matrix inequality (LMI). Finally, simulation results show that the designed controller for DP ships is effective so that the output of sampled-data DP ships system can track the reference signal without steady-state error in the existence of varying environment disturbance and actuator faults.
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- Published
- 2018-12-20
- Issue
- Vol. 20 No. 4 (2018)
- Section
- Articles