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Concept Design,Modeling and station-keeping Attitude Control of an Earth Observation Platform

Chinese Journal of Mechanical Engineering 2012年第6期25卷 1245-1254页

作者： YANG Yuenen WU Jie ZHENG Wei College of Aerospace and Materials Engineering National University of Defense TechnologyChangsha 410073China

The stratosphere airship provides a unique and promising platform for earth observation. Researches on the project design and control scheme for earth observation platforms are still rarely documented. Nonlinear dynamics, model uncertainties, and external disturbances contribute to the difficulty in maneuvering the stratosphere airship. A key technical challenge for the earth observation platform is station keeping, or the ability to remain fixed over a geo-location. This paper investigates the conceptual design, modeling and station-keeping attitude control of the near-space earth observation platform. A conceptual design of the earth observation platform is presented. The dynamics model of the platform is derived from the Newton-Euler formulation, and the station-keeping control system of the platform is formulated. The station-keeping attitude control approach for the platform is proposed. The multi-input multi-output nonlinear control system is decoupled into three single-input single-output linear subsystems via feedback linearization, the attitude controller design is carried out on the new linear systems using terminal sliding mode control, and the global stability of the closed-loop system is proven by using the Lyapunov theorem. The performance of the designed control system is simulated by using the variable step Runge-Kutta integrator. Simulation results show that the control system tracks the commanded attitude with an error of zero, which verify the effectiveness and robustness of the designed control system in the presence of parametric uncertainties. The near-space earth observation platform has several advantages over satellites, such as high resolution, fast to deploy, and convenient to retrieve, and the proposed control scheme provides an effective approach for station-keeping attitude control of the earth observation platform.

关键词： earth observation platform novel design attitude control terminal sliding mode station keeping near-space

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Geostationary station keeping Using Relative Orbital Elements with Model Predictive Control

Geostationary Station Keeping Using Relative Orbital Element...

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第32届中国控制与决策会议

作者： Hengguang Zou Jiliang Song Junzheng Wang Lei Zhang Yuan Huang School of Automation Beijing Institute of Technology China Academy of Space Technology

In this paper,we consider the model predictive control(MPC) design for the geostationary(GEO) satellite in achieving the station *** first introduce the GEO satellite orbit system with perturbation,for which the control framework through MPC strategy is ***,a relative orbital elements model is presented to characterize the specific properties of the GEO *** is shown that by resorting to the relative orbital elements,the station keeping problem can be disposed by solving an optimization *** that compared with the traditional station keeping methods,MPC strategy is flexible in control decision making,and it could handle a certain of *** this paper,control constraints are considered to satisfy the maximum thrust force of the *** simulations are carried out to validate the effectiveness of the proposed control strategy in solving the GEO satellite station keeping problem.

关键词： Model Predictive Control Geostationary satellite station keeping Relative orbital elements

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Additive-state-decomposition-based station-keeping control for autonomous aerial refueling

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Science China(Information Sciences) 2021年第11期64卷 240-242页

作者： Jinrui REN Quan QUAN Haibiao MA Kai-Yuan CAI School of Automation Science and Electrical Engineering Beihang University

Dear editor,Aerial refueling(AR) is an effective method of increasing the endurance and range of aircraft by refueling them in flight [1, 2]. station-keeping control is the basis of autonomous aerial refueling(AAR). The station-keeping control for AAR is a difficult task for two main reasons. First,the receiver is disturbed by the atmospheric turbulence and the wake vortex of the tanker. Secondly, owing to the fuel injection in the refueling process, the mass and the center of mass of the receiver will change.

关键词： Aerial refueling station keeping two-degree-of-freedom additive state decomposition varying mass

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Adaptive fuzzy sliding mode control for robotic airship with model uncertainty and external disturbance

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Journal of Systems Engineering and Electronics 2012年第2期23卷 250-255页

作者： Yueneng Yang Jie Wu Wei Zheng College of Aerospace and Materials Engineering National University of Defense TechnologyChangsha 410073P.R.China

An adaptive fuzzy sliding mode control （AFSMC） ap- proach is proposed for a robotic airship. First, the mathematical model of an airship is derived in the form of a nonlinear control system. Second, an AFSMC approach is proposed to design the attitude control system of airship, and the global stability of the closed-loop system is proved by using the Lyapunov stability theorem. Finally, simulation results verify the effectiveness and robustness of the proposed control approach in the presence of model uncertainties and external disturbances.

关键词： flight control sliding mode fuzzy system adaptation law station keeping airship.

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