Optimal control of spacecraft attitude motion using Port-Hamiltonian systems

Tomoya Sakamoto, Mai Bando, Shinji Hokamoto

研究成果: Contribution to journalConference article査読

抄録

In this study, a concept of optimality is introduced into Port-Hamilton systems for attitude control of spacecraft. Port-Hamiltonian systems make it possible to design asymptotically stable controllers in a uniform procedure for a wide variety of physical systems. By introducing optimality to Port-Hamilton system, conventional error systems of Port-Hamilton systems are expanded to minimize a quadratic form of evaluation function. In this study, as an optimal control method of Port-Hamiltonian system, Hamilton-Jacobi-Bellman (HJB) equation is considered. Since solving HJB equation is not easy, the equation is simplified through generalized canonical transformation, which is a unique conversion of Port-Hamiltonian system. Furthermore, by considering the minimum evaluation function as a Hamiltonian transformed through the generalized canonical transformation, the analytical solution of the HJB equation can be derived. This method can be used for a time-varying error system and applied for tracking control of spacecraft to specified trajectories. The optimality of the control input obtained from the proposed procedure is verified in numerical simulations.

本文言語英語
ジャーナルProceedings of the International Astronautical Congress, IAC
2018-October
出版ステータス出版済み - 2018
イベント69th International Astronautical Congress: #InvolvingEveryone, IAC 2018 - Bremen, ドイツ
継続期間: 10 1 201810 5 2018

All Science Journal Classification (ASJC) codes

  • 航空宇宙工学
  • 天文学と天体物理学
  • 宇宙惑星科学

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