Steering Law Controlling the Constant Speeds of Control Moment Gyros

Y. Koyasako, Masaki Takahashi

Research output: Contribution to journalArticle

Abstract

To enable the agile control of satellites, using control moment gyros (CMGs) has become increasingly necessary because of their ability to generate large amounts of torque. However, CMGs have a singularity problem whereby the torque by the CMGs degenerates from three dimensions to two dimensions, affecting spacecraft attitude control performance. This study proposes a new steering control law for CMGs by controlling the constant speed of a CMG. The proposed method enables agile attitude changes, according to the required task, by managing the total angular momentum of the CMGs by considering the distance to external singularities. In the proposed method, the total angular momentum is biased in a specific direction and the angular momentum envelope is extended. The design method can increase the net angular momentum of CMGs which can be exchanged with the satellite. The effectiveness of the proposed method is demonstrated by numerical simulations.

Original languageEnglish
Article number012161
JournalJournal of Physics: Conference Series
Volume744
Issue number1
DOIs
Publication statusPublished - 2016 Oct 3

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gyroscopes
moments
angular momentum
torque
satellite control
attitude control
spacecraft
envelopes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Steering Law Controlling the Constant Speeds of Control Moment Gyros. / Koyasako, Y.; Takahashi, Masaki.

In: Journal of Physics: Conference Series, Vol. 744, No. 1, 012161, 03.10.2016.

Research output: Contribution to journalArticle

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