Modelling and simulation of the power subsystem of a low earth orbit CubeSat

被引：2

作者：

Parthasarathy V. ^{[1
]}

Ferguson P. ^{[1
]}

机构：

[1] Department of Mechanical Engineering, University of Manitoba, Winnipeg

来源：

Aerospace Systems | 2020年 / 3卷 / 2期

关键词：

Modelling; Power subsystem; Satellite; Simulation; Statistical process control;

D O I：

10.1007/s42401-020-00050-1

中图分类号：

学科分类号：

摘要：

Modelling and simulating power subsystems of CubeSats are important tools in research and satellite design. To enhance the reliability of a CubeSat, a power subsystem simulator has been furnished. Statistical process control (SPC) is used to perform post-simulation analysis to detect faults in the system. This paper presents an architectural template for a simple power subsystem of CubeSat missions. The simulator has a modular structure with mathematical models of batteries, solar arrays, and the power control unit (PCU). This simulation helps with preliminary sizing and configuration of selected electrical components in an unregulated bus voltage scenario. The solar arrays, batteries, and PCU are modelled using a current–voltage lookup table, a voltage-capacity lookup table, and repeating sequences, respectively. The design is adapted to simulate the power subsystem of ManitobaSat-1, a student CubeSat built as part of the Canadian CubeSat Project. Batteries and solar cells are well sized to supply the necessary power during daylight and eclipse period using lookup tables and conditional switches. Outputs from this model will be used by the SPC module to detect out of control conditions as the simulation will describe the baseline or “normal” behaviour. Its application with the SPC module in automating satellite communications is discussed. This simulator is easily applicable to any satellite mission by modifying a few design parameters. It provides a feasible, user-friendly, simple and easily modifiable interface to perform complex analysis. © 2020, Shanghai Jiao Tong University.

引用

页码：139 / 146

页数：7

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