Robust Spacecraft Attitude Tracking Control with Actuator Misalignments

doi:10.3873/j.issn.1000-1328.2017.06.006

Journal of Astronautics ›› 2017, Vol. 38 ›› Issue (6): 598-604.doi: 10.3873/j.issn.1000-1328.2017.06.006

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Robust Spacecraft Attitude Tracking Control with Actuator Misalignments

LI Dong bai, XIE Yan hao, WU Bao lin

Research Center of Satellite Technology, Harbin Institute of Technology, Harbin 150080, China

Received:2016-05-26 Revised:2017-01-18 Online:2017-06-15 Published:2017-06-25

Abstract

Abstract:

A sliding mode control-based robust control law is proposed to deal with the problem of spacecraft attitude tracking considering actuator misalignments and external disturbances.The control torque errors due to actuator misalignments are considered in the proposed control law, and its effects on attitude control performance are suppressed. Besides showing stability, explicit bound on the attitude tracking errors is given in terms of design parameters. Simulation results show the effectiveness of the proposed control scheme.

Key words: Spacecraft, Attitude tracking, Actuator misalignment, Robust control

CLC Number:

V448 2

LI Dong bai, XIE Yan hao, WU Bao lin. Robust Spacecraft Attitude Tracking Control with Actuator Misalignments[J]. Journal of Astronautics, 2017, 38(6): 598-604.

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Robust Spacecraft Attitude Tracking Control with Actuator Misalignments

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