Split-Horizon MPC for Coupled Station Keeping, Attitude Control, and Momentum Management of GEO Satellites using Electric Propulsion

Ryan J. Caverly, Stefano Di Cairano, Avishai Weiss

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

In this paper, a model predictive control (MPC) policy is developed to simultaneously perform station keeping, attitude control, and momentum management of a nadir-pointing geostationary satellite equipped with three reaction wheels and four on-off electric thrusters mounted on two boom assemblies attached to the anti-nadir face of the satellite. The MPC policy includes an inner-loop SO(3)-based attitude control law to maintain a nadir-pointing attitude, and an outer loop for station keeping and momentum management. The MPC formulation makes use of two different prediction horizons; a short horizon is used for the states associated with the orbit's inclination and a longer horizon is used for all other states. This split-prediction horizon MPC policy leads to a significant reduction in delta-v compared to a single horizon. The continuous thrust command generated by the MPC policy is quantized as a single on-off pulse every feedback period in such a way that the predicted error in the states induced by quantization is minimized, which reduces the number of on-off pulses compared to other quantization approaches in the literature, including pulse-width modulation.

Original languageEnglish (US)
Title of host publication2018 Annual American Control Conference, ACC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages652-657
Number of pages6
ISBN (Print)9781538654286
DOIs
StatePublished - Aug 9 2018
Externally publishedYes
Event2018 Annual American Control Conference, ACC 2018 - Milwauke, United States
Duration: Jun 27 2018Jun 29 2018

Publication series

NameProceedings of the American Control Conference
Volume2018-June
ISSN (Print)0743-1619

Other

Other2018 Annual American Control Conference, ACC 2018
CountryUnited States
CityMilwauke
Period6/27/186/29/18

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