Abstract
Accurate track control and rapid suppression of external disturbances such as wind fields are the keys to the aerial refueling vehicle to complete refueling tasks in flight. This paper introduces the design method of L1 track controller. Based on the classic law of track control, the feedback of lateral acceleration sensitive items are added to make the UAV sensitive to the change of the speed vector caused by external disturbances in the initial stage and perform corresponding control actions to achieve the rapid suppression of disturbances. The paper shows the structure chart of track control, the optimized L1 controller calculation formula and the corresponding control coefficients in detail. The control effect is compared with that of traditional PID control method in digital simulation, and the method is also verified by actual flight tests. Simulation and flight test results demonstrate the effectiveness and efficiency of the method, and it can achieve strong crosswind suppress and smooth track transition control.
Foundation: Shanxi Key Industry Innovation Chain Project (2019ZDLGY14-06).
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Zhang, J., Sun, Z. (2022). Application of L1 Controller in Trajectory Tracking for Aerial Refueling Vehicle. In: Yan, L., Duan, H., Yu, X. (eds) Advances in Guidance, Navigation and Control . Lecture Notes in Electrical Engineering, vol 644. Springer, Singapore. https://doi.org/10.1007/978-981-15-8155-7_266
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DOI: https://doi.org/10.1007/978-981-15-8155-7_266
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