Long-Term Electric-Propulsion Geostationary Station-Keeping via Integer Programming

Gazzino, Clément; Arzelier, Denis; Louembet, Christophe; Cerri, Luca; Pittet, Christelle; Losa, Damiana

doi:10.2514/1.g003644

Cited by 20 publications

(5 citation statements)

References 17 publications

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“…On the other hand, despite the low thrust of the electric propulsion system, it can still provide high economic efficiency during high precision attitude and orbit control of GEO spacecraft [6][7][8]. However, the current layout of the electric propulsion system commonly used in GEO spacecraft is the traditional quadrilateral layout in a fixed direction [9]. Since this layout does not allow for real-time adjustment of thrust direction during reorbiting, there is an inevitable problem of thrust loss.…”

Section: Introductionmentioning

confidence: 99%

Planning Allocation for GTO-GEO Transfer Spacecraft with Triple Orthogonal Gimbaled Thruster Boom

Kong

2023

Mathematics

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This paper proposes an electric propulsion platform based on a triple orthogonal gimbaled thruster boom to realize the GTO-GEO transfer process. The adjustment mechanism of the gimbaled thruster boom significantly improves the range of thrust vector variation enhances the efficiency of thrust vector adjustment, and reduces the spacecraft burn-up. Additionally, to achieve the application performance, a planning allocation method based on the model prediction algorithm is proposed and verified through numerical simulation.

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Section: Introductionmentioning

confidence: 99%

Planning Allocation for GTO-GEO Transfer Spacecraft with Triple Orthogonal Gimbaled Thruster Boom

Kong

2023

Mathematics

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“…Special care should be taken when dealing with non-Gaussian noise if an EKF is the estimator. However, previous research about station-keeping maneuvering for geostationary satellites has not included precise attitude determination under non-Gaussian noise when using star tracker as an attitude sensor [3,4]. Star images are usually generated by defocusing the camera images in order to precisely acquire the centroids of stars.…”

Section: Introductionmentioning

confidence: 99%

GMM-Based Adaptive Extended Kalman Filter Design for Satellite Attitude Estimation under Thruster-Induced Disturbances

Kim

Zewge

Bang

et al. 2023

Sensors

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Star images from star trackers are usually defocused to capture stars over an exposure time for better centroid measurements. While a satellite is maneuvering, the star point on the screen of the camera is affected by the satellite, which results in the degradation of centroid measurement accuracy. Additionally, this could result in a worse star vector outcome. For geostationary satellites, onboard thrusters are used to maintain or change orbit parameters under orbit disturbances. Since there is misalignment in the thruster and torque is generated by an impulsive shape signal from the torque command, it is difficult to generate target torque; in addition, it also impacts the star image because the impulsive torque creates a sudden change in the angular velocity in the satellite dynamics. This makes the noise of the star image non-Gaussian, which may require introducing a method for dealing with non-Gaussian measurement noise. To meet this goal, in this study, an adaptive extended Kalman filter is implemented to predict measurement vectors with predicted states. The GMM (Gaussian mixture model) is connected in this sequence, giving weighting parameters to each Gaussian density and resulting in the better prediction of measurement vectors. Simulation results show that the GMM-EKF exhibits a better performance than the EKF for attitude estimation, with 30% improvement in performance. Therefore, the GMM-EKF could be a more attractive approach for use with geostationary satellites during station-keeping maneuvers.

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“…Gazzino [21,22] et al decompose the SK problem into three steps to solve: the first step adopts the pulse method, and the optimal control sequence is obtained by the indirect method; the second step is to convert the pulse into a small thrust; the third step is to further optimize the moment of the low-thrust switch. Gazzino [23,24] considered the SK period and the orbital determination period as a whole, transformed the small thrust SK problem of the GEO satellite into a linear integer programming problem, and realized the sub-optimal fuel GEO SK. However, this strategy is computationally complex and can only be used on the ground.…”

Section: Introductionmentioning

confidence: 99%

North/South Station Keeping of the GEO Satellites in Asymmetric Configuration by Electric Propulsion with Manipulator

Liu

Zhu

et al. 2022

Mathematics

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Geosynchronous orbit (GEO) is a very important strategic resource. In order to maximize the utilization of the GEO resources, the use of all-electric propulsion GEO platforms can greatly extend the service life of satellites. Therefore, this paper proposes a control scheme of the north/south station keeping (NSSK) by using electric propulsion with a manipulator. First, on the basis of the traditional calculation method of the semi-diurnal period of the orbital inclination, the calculation method of the semi-monthly period and the semi-annual period of the orbital inclination are proposed. The new method can reduce the fuel consumption and reduce the control amount and control frequency of the station keeping (SK). Secondly, a fuel-optimized NSSK algorithm by using electric propulsion with a manipulator is proposed. The algorithm can not only be applied to a large initial orbital inclination but also can unload the large angular momentum of the asymmetric satellites while keeping the north/south station, thereby avoiding the loss of control of the satellite’s attitude. The research results of this paper provide a new idea for the SK control of the GEO satellites and have great engineering application value.

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Long-Term Electric-Propulsion Geostationary Station-Keeping via Integer Programming

Cited by 20 publications

References 17 publications

Planning Allocation for GTO-GEO Transfer Spacecraft with Triple Orthogonal Gimbaled Thruster Boom

Planning Allocation for GTO-GEO Transfer Spacecraft with Triple Orthogonal Gimbaled Thruster Boom

GMM-Based Adaptive Extended Kalman Filter Design for Satellite Attitude Estimation under Thruster-Induced Disturbances

North/South Station Keeping of the GEO Satellites in Asymmetric Configuration by Electric Propulsion with Manipulator

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