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第36届中国控制会议

作者： Yue Sun Xianlin Huang Hongqian Lu Hang Yin Control Theory and Guidance Technology Center of Harbin Institute of Technology

ISBN: (纸本)9781538629185

In view of the mars reentry problem under external disturbance,this paper presents a guidance algorithm based on drag *** of all,the reference drag is calculated based on the reentry model and the reference ***,estimated disturbance via the sliding mode observer,this paper improve the accuracy of the controller parameters and increase the anti-disturbance ***,the sliding mode guidance law for drag tracking is proposed based on the observer,reentry model and the reference *** simulation results indicate that the anti-disturbance capability of the guidance law is increased by introducing the sliding mode *** proposed guidance law can effectively enhance the response speed and decrease the tracking errors,with higher practical value,compared with the traditional PD algorithm.

关键词： Mars reentry Sliding mode observer drag tracking Complex control

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Leap trajectory tracking control based on sliding mode theory for hypersonic gliding vehicle

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2022年第3期23卷 188-207页

作者： Kai AN Zhen-yun GUO Wei HUANG Xiao-ping XU Science and Technology on Scramjet Laboratory College of Aerospace Science and EngineeringNational University of Defense TechnologyChangsha 410073China Beijing Interdisciplinary Center National University of Defense TechnologyBeijing 100101China

The aim of this study was to develop robust tracking control schemes for the 3D leap trajectory of hypersonic gliding vehicles using sliding mode theory. A predictor-corrector guidance method was applied to the generation of the reference trajectory, and drag acceleration was selected as the profile of reference tracking. A combined super-twisting sliding mode controller(CST-SMC) is proposed to decrease the tracking error and guarantee the tracking performance in the presence of system nonlinearities compared to three other common controllers: the linear sliding mode controller(L-SMC), global fast terminal sliding mode controller(GFT-SMC), and super-twisting sliding mode controller(ST-SMC). By using the developed controller, the system state of a second-order drag acceleration tracking error system can approach the global fast terminal sliding manifold in finite time. By using the Lyapunov approach, sufficient conditions are deduced to ensure that the tracking performance is obtained for a closed-loop system. Furthermore, we show that the controller is robust to initial uncertain parameters and other perturbations, as validated by simulation results with appropriate gains.

关键词： Predictor-corrector guidance drag tracking Sliding mode control(SMC) Super twisting control

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