Static Closed Loop Test Results for On-Orbit Attitude Control Experiments of Large Flexible Satellite ETS-VIII

Paper number

IAC-09.C1.9.6

Author

Mr. Takashi Ohtani, Japan Aerospace Exploration Agency (JAXA), Japan

Coauthor

Mr. Yoshiro Hamada, Japan Aerospace Exploration Agency (JAXA), Japan

Coauthor

Prof. Takashi Kida, University of Electro-Communications, Japan

Coauthor

Mr. Shinji Mitani, Japan Aerospace Exploration Agency (JAXA), Japan

Coauthor

Prof. Tomoyuki Nagashio, University of Electro-Communications, Japan

Year

2009

Abstract

This paper reports results of the static closed loop test (SCLT) for an on-orbit advanced robust attitude control experiment using a Japanese large flexible communication satellite: the Engineering Test Satellite VIII (ETS-VIII). The on-orbit attitude control experiment is designed to develop a baseline technology for a class of future large flexible spacecraft and earth observation satellites that require attitude maneuvers using advanced control technology. This SCLT is very important final test on the ground for an on-orbit experiment. Now, we are ready to perform an on-orbit experiment. An important issue is the design of a reduced-order multi-input multi-output (MIMO) robust controller for a linear parameter varying (LPV) spacecraft system. We therefore prepared three control laws after trade-off studies. The candidate experiment controllers were evaluated using (1) a preliminary MATLAB-based laboratory design and synthesis, (2) full software simulation of onboard algorithms with emulation of the AOCS hardware, and (3) H/W in the loop tests: the static closed loop tests using the ACE(Attitude Control Electronics)-EM(Engineering Model) that has been prepared for the evaluation of the spacecraft bus software. This report presents an outline of this experiment, some features of the spacecraft model, mission requirements, the outline of proposed control laws, and the static closed loop test results.

Abstract document

IAC-09.C1.9.6.pdf

Manuscript document

IAC-09.C1.9.6.pdf (🔒 authorized access only).

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