Journal
TSINGHUA SCIENCE AND TECHNOLOGY
Volume 26, Issue 1, Pages 9-23Publisher
TSINGHUA UNIV PRESS
DOI: 10.26599/TST.2019.9010041
Keywords
Active Disturbance Rejection Control (ADRC); Fractional-Order Proportional-Integral-Derivative (FOPID); Linear Extended State Observer (LESO); Near Space Hypersonic Vehicle (NSHV); actuator faults
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Funding
- National High-Tech Research and Development Program of China [11100002017115004, 111GFTQ2018115005]
- National Natural Science Foundation of China [61473015, 91646108]
- Space Science and Technology Foundation of China [105HTKG2019115002]
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This study proposed a novel compound control scheme (FOLADRC) for reentry flight control of hypersonic vehicles with actuator faults, achieving satisfactory performance in terms of parameter tuning and disturbance rejection capability analysis.
The hypersonic vehicle model is characterized by strong coupling, nonlinearity, and acute changes of aerodynamic parameters, which are challenging for control system design. This study investigates a novel compound control scheme that combines the advantages of the Fractional-Order Proportional-Integral-Derivative (FOPID) controller and Linear Active Disturbance Rejection Control (LADRC) for reentry flight control of hypersonic vehicles with actuator faults. First, given that the controller has adjustable parameters, the frequency-domain analysis-method-based parameter tuning strategy is utilized for the FOPID controller and LADRC method (FOLADRC). Then, the influences of the actuator model on the anti-disturbance capability and parameter tuning of the FOLADRC-based closed-loop control system are analyzed. Finally, the simulation results indicate that the proposed FOLADRC approach has satisfactory performance in terms of rapidity, accuracy, and robustness under the normal operating condition and actuator fault condition.
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