期刊
NONLINEAR DYNAMICS
卷 104, 期 3, 页码 2433-2450出版社
SPRINGER
DOI: 10.1007/s11071-021-06407-1
关键词
Takagi-Sugeno fuzzy system; Fault-tolerant control; Over-actuated; H-infinity control; Dynamic positioning
资金
- National Natural Science Foundation of China [61803127]
- Natural Science Foundation in Heilongjiang Province, China [YQ2019F012]
- Postdoctoral Science Foundation of China [2019M661463]
- Fundamental Research Foundation for Universities of Heilongjiang Province, China [2019-KYYWF-0210]
This study investigates a new robust synthesis method for robust fault tolerant control of over-actuated nonlinear systems. It models the nonlinear system using a T-S fuzzy system approach with actuators layout and involves a designed non-parallel distributed compensation form controller. By introducing a more generalized performance index and a newly proposed nonlinear approximation method, a series of linear matrix inequalities are derived to ensure system robust stability. The proposed method is verified through a dynamic positioning vessel control task.
For the problem of robust fault tolerant control of over-actuated nonlinear systems, a new robust synthesis method is investigated. The nonlinear system is modeled via a T-S fuzzy system approach with actuators layout. Based on a designed non-parallel distributed compensation form controller, the closed loop system is obtained. Then a more generalized performance index is introduced by involving the system transients and actuator faults. With a newly proposed nonlinear approximation method, a series of linear matrix inequalities which can make the system robust stable are listed. Finally, based on a dynamic positioning vessel control task, the validity of the proposed method is verified.
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