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Performance evaluation for scientific balloon station-keeping strategies considering energy management strategy
ارزیابی عملکرد برای استراتژی نگهداری ایستگاه های بالون علمی با توجه به استراتژی مدیریت انرژی-2020 The combination of solar array and rechargeable battery is the main trend of energy system for scientific
balloon station-keeping, when the performances of station-keeping strategies are evaluated, energy
problem should be considered. In this paper, the performances of air ballast system and double balloon
system are evaluated with the consideration of energy management strategy. The theoretical model
consisting of thermal model, solar array power model, energy consumption model and energy evaluation
model is proposed. The energy management strategy containing solar array and lithium battery is
designed. Based on the theoretical model and energy management strategy, a MATLAB program is
developed. The feasibility is verified by comparison analysis. The energy harvesting characteristics, effects
of the station-keeping duration and effects of the station-keeping region radius are analyzed
carefully. The results show that the double balloon is superior than air ballast system from the
perspective of energy. The air ballast system requires more energy than double balloon system and the
energy difference increases over time. Air ballast system lithium battery capacity requirement is higher
than double balloon system, the total energy consumption and the energy differences decrease with
expected radius increasing. It would be helpful in selecting station-keeping strategies for scientific
balloon mission. Keywords: Energy management strategy | Lithium battery | Performance evaluation | Scientific balloon | Solar array | Station-keeping |
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