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Son, Hungsun
Electromechanical Systems & Control Lab (ESCL)
Research Interests
  • Magnetic field modeling
  • Actuator and sensor
  • Robotics and Automation

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Dynamics estimator based robust fault-tolerant control for VTOL UAVs trajectory tracking

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dc.contributor.author Xia, Kewei ko
dc.contributor.author Chung, Wonmo ko
dc.contributor.author Son, Hungsun ko
dc.date.available 2021-08-12T08:32:12Z -
dc.date.created 2021-08-09 ko
dc.date.issued 2022-01 ko
dc.identifier.citation MECHANICAL SYSTEMS AND SIGNAL PROCESSING, v.162, pp.108062 ko
dc.identifier.issn 0888-3270 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/53405 -
dc.description.abstract This paper investigates the control issue of the trajectory tracking of vertical take-off and landing (VTOL) unmanned aerial vehicles (UAVs) in the presence of partial propeller fault and external disturbance. In particular, a robust passive fault-tolerant control strategy is proposed by introducing a first-order filter based dynamics estimator. First, a bounded force command is exploited by employing a new smooth saturation function in the output of the estimator. A sufficient condition in terms of a specified parameter selection criteria is provided to ensure the nonsingularity extraction of the command attitude. Then, a torque command is applied to the attitude loop tracking. Since there is merely one filter parameter involved in the dynamics estimator, the practical implementation and parameter tuning can be significantly simplified. Stability analysis indicates that the proposed control strategy guarantees the semi-globally ultimately bounded tracking of VTOL UAVs subject to partial propeller fault and external disturbance. Simulation and experiment results with comparison examples are performed to validate the effectiveness of the proposed strategy. Experimental results show that the proposed strategy achieves the trajectory tracking with a good performance (mean deviation 0.0074 m and standard deviation 0.1202 m) in the presence of 35% propeller fault and 4 m/s persistent wind disturbance. ko
dc.language 영어 ko
dc.publisher Academic Press ko
dc.title Dynamics estimator based robust fault-tolerant control for VTOL UAVs trajectory tracking ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85110347835 ko
dc.identifier.wosid 000693998700007 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.ymssp.2021.108062 ko
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S0888327021004519?via%3Dihub ko
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