Thermal Control System Design for 50kg-Class Micro-Satellite by Using Genetic Algorithms
Kenta Tsuda, Atsushi Okamoto, M. Chiba, Hiroshi Okubo, Hisao Azuma, Yoshihiko Sugiyama, Tsuyoshi Akita, Yousuke Nakamura, Hiroaki Imamura · JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES · 2007
A method is presented for designing the thermal control system for 50kg-class micro-satellite using a genetic algorithm. Replacing the thermal control system into a heat transfer model, i.e. a thermal network model, the problem is treated as an optimization problem to find suitable combinations of adapted thermal control elements under admissible function keeping the controlled temperature within a selected band width. Admissible function used herein consists of two parameters; the one is a slope of temperature variation and the second is an amplitude of temperature variation during on orbital motion of satellite. To demonstrate the validity of the proposed method, the method is applied to two examples for the thermal control system design of a 50kg-class micro-satellite, tentatively called “SOHLA-1”, under development.