A Smoothed Eclipse Model for Solar Electric Propulsion Trajectory Optimization

• AZIZ Jonathan

  University of Colorado Boulder

• SCHEERES Daniel

  University of Colorado Boulder

• PARKER Jeffrey

  Advanced Space

• ENGLANDER Jacob

  NASA Goddard Space Flight Center

抄録

Solar electric propulsion (SEP) is the dominant design option for employing low-thrust propulsion on a space mission. Spacecraft solar arrays power the SEP system but are subject to blackout periods during solar eclipse conditions. Discontinuity in power available to the spacecraft must be accounted for in trajectory optimization, but gradient-based methods require a differentiable power model. This work presents a power model that smooths the eclipse transition from total eclipse to total sunlight with a logistic function. Example trajectories are computed with differential dynamic programming, a second-order gradient-based method.

収録刊行物

• TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN

  TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 17 (2), 181-188, 2019

  一般社団法人 日本航空宇宙学会

キーワード

• Solar Electric Propulsion
• Low-Thrust Trajectory Optimization
• Eclipse
• Differential Dynamic Programming

詳細情報

• CRID: 1390282763102281088
• NII論文ID: 130007607421
• DOI: 10.2322/tastj.17.181
• ISSN: 18840485
• Web Site: https://www.jstage.jst.go.jp/article/tastj/17/2/17_17.181/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可