Aerospace power system for a 1U CubeSat built by SSU students Acknowledgements: Dr. Garrett Jernigan - Project adviser Dr. Lynn Cominsky - SSU faculty adviser Ben Cunningham & Hunter Mills - Debugging help Abstract: Students at SSU have been working on small satellites known as CubeSats for several years 1 , and we intend to launch another by January. In anticipation of designing its power system - the most common failure point for CubeSats 2 - I spent the spring semester studying and analyzing electronic components, simulating charge cycles, and getting familiar with the microcontroller and ḒLogo language it will employ. Wes M. Watson Department of Physics & Astronomy Analysis, in this context, refers to developing a mathematical model which describes the electrical behavior of a specific component. An equation is determined by fitting empirical current and voltage data from each unique component to its known generic current-voltage relationship (see right). Simulations of electronic systems allow quick predictions of how changing any component will affect the behavior of the power system. This simulation solves a nonlinear differential equation to predict the energy in the system at any time. This microcontroller will run most systems on the satellite; the power system, however, must have a fail-safe circuit as it powers the microcontroller. Energy will be stored in both a nickel cadmium battery pack and an ultra-rugged (but lower capacity) supercapacitor. Taking empirical data from a solar cell. Voltage: v/V Current: i(v)/mA Solar cell current-voltage relationship Simulation coding in progress. i3 AppBoard microcontroller Supercapacitor NiCad batteries Solar cell SSU CubeSat team: Demitri Call :: Wes Watson :: Max Torke Aman Gill :: Anna McCowen:: Alyssa Afa’ese Aaron Owen :: Tyler Whitmarsh :: Michael Schwarz Further information: 1. “T-LogoQube”: http://universe.sonoma.edu/T-LogoQube/ 2. “The First One Hundred CubeSats: A Statistical Look” Swartwout, M. (2013): JoSS, Vol. 2, No. 2, pp. 213-233 Generic equation: Specific equation: 5cm 9.7cm
Aerospace Power System for a 1U Cubesat Built by SSU Students
Nov 09, 2015
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Aerospace power system for a 1U CubeSat built by SSU students
Acknowledgements:Dr. Garrett Jernigan - Project adviserDr. Lynn Cominsky - SSU faculty adviserBen Cunningham & Hunter Mills - Debugging help
Abstract: Students at SSU have been working on small satellites known as CubeSats for several years1, and we intend to launch another by January. In anticipation of designing its power system - the most common failure point for CubeSats2 - I spent the spring semester studying and analyzing electronic components, simulating charge cycles, and getting familiar with the microcontroller and Logo language it will employ.
Wes M. WatsonDepartment of Physics & Astronomy
Analysis, in this context, refers to developing a mathematical model which describes the electrical behavior of a specific component. An equation is determined by fitting empirical current and voltage data from each unique component to its known generic current-voltage relationship (see right).
Simulations of electronic systems allow quick predictions of how changing any component will affect the behavior of the power system. This simulation solves a nonlinear differential equation to predict the energy in the system at any time.
This microcontroller will run most systems on the satellite; the power system, however, must have a fail-safe circuit as it powers the microcontroller.
Energy will be stored in both a nickel cadmium battery pack and an ultra-rugged (but lower capacity) supercapacitor.
Taking empirical data from a solar cell.
Voltage: v/V
Current: i(v)/mA
Solar cell current-voltage relationship
Simulation coding in progress.
i3 AppBoard microcontroller
Supercapacitor NiCad batteries
Solar cell
SSU CubeSat team:Demitri Call :: Wes Watson :: Max Torke
Aman Gill :: Anna McCowen:: Alyssa AfaeseAaron Owen :: Tyler Whitmarsh :: Michael Schwarz
Further information:1. T-LogoQube: http://universe.sonoma.edu/T-LogoQube/
2. The First One Hundred CubeSats: A Statistical Look Swartwout, M. (2013): JoSS, Vol. 2, No. 2, pp. 213-233
Generic equation:
Specific equation:
5cm9.
7cm
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