Title

Time-Shared Scheme Design For Attitude Control System During Space Separation

Keywords

Phase plane attitude switching control law (PPASCL); Quasi Euler angle; Space separation; Time-shared attitude control scheme (TCS)

Abstract

In this paper, a quasi-Euler-angle-based phase plane attitude switching control law (PPASCL) is introduced to control the Orbital Transfer Vehicle (OTV) during the separation process between the OTV and the released satellite/payload. In particular, three reverse-jet thrusters serve to separate the OTV from the unlatched satellite, and in the case that the center of mass of the OTV does not coincide with its body axis, the resulted reverse-jet force will impact the attitude of the OTV, it is thus necessary to employ the large-thrust attitude control nozzles in this scenario. Due to the fact that the opposite two large-thrust nozzles could not fire simultaneously, the adjacent nozzles have to be employed together to control either the pitch or the yaw channel as well as to reduce the disturbance imposing on the roll axis. Moreover, a time-shared attitude control scheme (TCS) is adopted in practical implementation. Simulation results show that the proposed PPASCL and TCS are feasible and effective. In addition, when the regulating coefficients are properly specified, a smooth and safety separation can be ensured. © 2010 Elsevier Masson SAS. All rights reserved.

Publication Date

3-1-2011

Publication Title

Aerospace Science and Technology

Volume

15

Issue

2

Number of Pages

108-116

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.ast.2010.06.005

Socpus ID

79951553536 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/79951553536

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