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Robust control for constant thrust rendezvous under thrust failure

Chinese Journal of Aeronautics 2015年第2期28卷 518-526页

作者： Qi Yongqiang Jia Yingmin Wang Jian College of Sciences China University of Mining and Technology School of Automation Science and Electrical Engineering Beihang University School of Environment Science and Spatial Informatics China University of Mining and Technology

A robust constant thrust rendezvous approach under thrust failure is proposed based on the relative motion dynamic model. Firstly, the design problem is cast into a convex optimization problem by introducing a Lyapunov function subject to linear matrix inequalities. Secondly, the robust controllers satisfying the requirements can be designed by solving this optimization problem. Then, a new algorithm of constant thrust fitting is proposed through the impulse compensation and the fuel consumption under the theoretical continuous thrust and the actual constant thrust is cal- culated and compared by using the method proposed in this paper. Finally, the proposed method having the advantage of saving fuel is proved and the actual constant thrust switch control laws are obtained through the isochronous interpolation method, meanwhile, an illustrative example is pro- vided to show the effectiveness of the proposed control design method.

关键词： constant thrust Optimal fuel Rendezvous Robust controller thrust failure

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Method for designing constant thrust power schedule

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航空动力学报 2018年第9期33卷 2296-2304页

作者： MIAO Keqiang WANG Xi School of Energy and Power Engineering Beijing University of Aeronautics and Astronautics Beijing 100191 China Collaborative Innovation Center for Advanced Aero-Engine Beijing 100191 China

In order to make the power level angle(PLA)have the same bijection relationship with the thrust when the environment changes before operational limit exceedance,and ensure the pilot's ability of unrestricted throttle movement as well as the safety of the engine,a method used to design a constant thrust power schedule was *** research was based on a simulink turbofan engine model and the results were organized as look-up tables in different structures with *** was done to confirm the validity and demonstrate the effectiveness of the schedule obtained with the *** constant thrust takeoff schedule,constant thrust idle schedule and constant thrust part power schedule with the present constant thrust control(CTC)method were proved to be *** results can be applied to this specific engine but the method can be applied to any areoengine and can be even extended to the unmanned plane.

关键词： power schedule constant thrust turbofan engine operational limitations control method

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维普期刊数据库

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constant thrust Control Based on Double Threshold for Hovering at Asteroid Equilibrium Points 32

Constant Thrust Control Based on Double Threshold for Hoveri...

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第32届中国控制与决策会议

作者： SUI Zhihui FENG Junhua LI Maodeng ZHU Shengying School of Aerospace Engineering Beijing Institute of Technology Key Laboratory of Autonomous Navigation and Control for Deep Space Exploration National Key Laboratory of astrodynamics Key Laboratory of Science and Technology on Space Intelligent Control Beijing Institute of Control Engineering

ISBN: (数字)9781728158556

ISBN: (纸本)9781728158563

This paper proposes a dual-threshold control method for constant thrust of hovering orbit at the unstable equilibrium point of an ***,according to the orbital dynamics model of the probe,the nominal hover ing orbit of the probe near the equilibrium point is ***,according to the basic idea of threshold control,not only set the threshold at the current moment,but also predict the state of the future moment and set the threshold at that *** when both thresholds are triggered at the same time does the constant thrust engine come into operation,which keeps the detector on the hovering ***,simulation was performed with Eros433 as the target *** simulation results show that the method can effectively reduce the number of engines switching and operating time while maintaining a certain accuracy.

关键词： Equilibrium points constant thrust Dual-threshold control Nominal hover orbit

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Robust Control Method Applied in constant thrust Rendezvous Under thrust Failure

Robust Control Method Applied in Constant Thrust Rendezvous ...

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2015年中国智能自动化学术会议

作者： Yongqiang Qi College of Sciences China University of Mining and Technology (CUMT)

A robust constant thrust rendezvous approach under thrust failure is proposed based on the relative motion dynamic model.A new algorithm of constant thrust fitting is proposed through the impulse compensation and the fuel consumption under the theoretical continuous thrust and the actual constant thrust is calculated and *** last,the proposed method has the advantage of saving fuel is proven and the constant thrust switch control laws are obtained through the isochronous interpolation method;an illustrative example is provided to show the effectiveness of the proposed control design method.

关键词： Rendezvous constant thrust Robust controller

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Variable thrust Angle constant thrust Rendezvous

Variable Thrust Angle Constant Thrust Rendezvous

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2015年中国智能自动化学术会议

作者： Yongqiang Qi Ding Lv College of Sciences China University of Mining and Technology (CUMT)

In this paper,variable thrust angle(VTA) constant thrust rendezvous is *** particular,the rendezvous process is divided into in-plane motion and out-plane motion based on the relative motion dynamic *** the in-plane motion,the calculation of thrust angle control lows is cast into a convex optimization problem by introducing a Lyapunov function subject to linear matrix *** the out-plane motion,a new algorithm of constant thrust fitting is proposed through the impulse *** illustrative example is provided to show the effectiveness of the proposed control design method.

关键词： Rendezvous constant thrust Variable thrust angle Robust controller

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Robust Control for constant thrust Rendezvous

Robust Control for Constant Thrust Rendezvous

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2015年中国智能自动化学术会议

作者： Yongqiang Qi Minghui Ou College of Sciences China University of Mining and Technology

In this paper,a robust orbit design approach under constant thrust is proposed based on the relative motion dynamic ***,the design problem is cast into a convex optimization problem by introducing a Lyapunov function subject to linear matrix ***,the robust controllers satisfying the requirements can be designed by solving this optimization *** last,the proposed method has the advantage of saving fuel is proved and the actual constant thrust switch control laws are obtained through the isochronous interpolation method,an illustrative example is provided to show the effectiveness of the proposed control design method.

关键词： Rendezvous constant thrust Linear matrix inequality Robust controller

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Variable thrust Angle constant thrust Collision Avoidance Maneuver

Variable Thrust Angle Constant Thrust Collision Avoidance Ma...

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2015年中国智能自动化学术会议

作者： Yongqiang Qi Yong Ma College of Sciences China University of Mining and Technology (CUMT)

In this paper,variable thrust angle(VTA) constant thrust collision avoidance maneuver is *** in-plane motion,robust controllers satisfying the requirements can be designed by solving this optimization *** outplane motion,a new algorithm of constant thrust fitting is proposed through impulse compensation and fuel consumption under theoretical continuous thrust and the actual constant thrust is ***,illustrative example is provided to show the effectiveness of the proposed control design method.

关键词： Collision avoidance maneuver constant thrust Variable thrust angle Linear matrix inequality Robust controller

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