Design of Electrical Power Subsystem of a Low Orbit Satellite
[1]
Abdullahi Ayegba, Mathson Research Centre, a Division Mathson Space International School, Karshi, Abuja, Nigeria.
[2]
Vincent Andrew Akpan, Department of Biomedical Technology, the Federal University of Technology, Akure, Nigeria.
[3]
Ale Felix, Department of Electrical & Electronics Engineering, University of Abuja, Gwagwalada, Nigeria.
An electrical power subsystem of a satellite is the satellite subsystem responsible for the supply of energy to other subsystems of the satellite. The aim of this work is to design the electrical power subsystem for a low earth orbit which will orbit at 650 km altitude above the earth’s surface. The average power of the satellite is 800 W and it has a life span of 8 years. The design was done using direct energy transfer method and mathematical computation process to calculate various parameters of the power generation, storage, regulation and distribution units. The result showed that a total of 9647 cells, consisting of 254 cells in parallel and 38 series (string) cells and array mass of the solar array was 65.5 kg will be needed for the power generation unit while the power storage unit is made up of 28 batteries of 1.25 V battery voltage and 53 Ahr capacity. In addition, the charge controller of amperage, 64 A is used for the charge regulation of the batteries while the parameters for the power distribution unit (bulk converter) calculated accordingly.
Battery, Bulk Converter, Energy, Orbital Period, Power Regulation Unit, Satellite
[1]
A. Ayegba and O. S. Ndiuwem: “Design of electrical power generation and storage units of a low orbit satellite”, International Journal of Trend in Research and Development, vol. 4, no. 5, pp 524-529, 2017.
[2]
M. Ahmad, M. K. Reza, S. Nezhad and K. Milad, “Conceptual Design and Simulation of Electric Power Supply System for a Remote Sensing Nano Satellite in LEO Orbit”, Journal of Basic and Applied Scientific Research, vol. 3, no. 1, pp. 622-632, 2013.
[3]
A. Samina, “Evolutionary computation based multi-objective design search and optimization of spacecraft electrical power subsystems”, A thesis submitted in fulfillment of the requirments for the degree of Doctor of Philosophy, Faculty of Engineering, Department of Electronics and Electrical Engineering University of Glasgow, 2008.
[4]
C. Sofiane, W. Michael, S. Jeremy, M. Ronald, W. David, “Design of an Electrical Power System for the Open Orbiter CubeSat”, Available [Online]: http://works.bepress.com/jeremy_straub/277/, (Accessed on 23rd August, 2015).
[5]
J. F. Pedersen (2017), “Power system for the eucropis satellite - results from design trade-offs, analysis, simulation and testing”, E3S Web of Conferences, (Accessed on 13th June, 2018).
[6]
M. R. Patel, “Spacecraft Power Systems”, Boca Raton, Washington, D. C., 2005.
[7]
S. Tatsuo and I. U. Craig: “Power Subsystem Design for Micro-Satellites Using Super- Capacitor Energy Storage”, American Institute of Aeronautics and Astronautics, vol. 6, pp 2-5, 2009.
[8]
B. Nadir (2003), “Satellite Engineering”, Massachusetts Institute of Technology, Cambridge, Massachusetts, pp: 1-13.
[9]
W. Larson and W. James, “Space Mission Analysis and Design”, 3rd ed., Microcosm Press. Segundo, California, 2005.
[10]
C. Chatwin (2017)” Satellite & Space Systems – Electrical Power Systems”, Available at: https://www.researchgate.net/publication/316734562. Accessed: Dec 14, 2018.
[11]
K. K. Tse, M. T. Ho, S. Henry, H. Chung and S. Y. Ron Hui, “A Novel MPPT for PV Panels Using Switching Frequency Modulation”, IEEE Transactions Power Electronics, vol. 17, no. 6, pp. 980-989, 2002.
[12]
Nickel hydrogen data sheet available at: https://cellpacksolutions.co.uk/wp-content/uploads/2015/06/saft-nih-data-sheet: (Accessed 25th September, 2017).
[13]
A. O. Osama and M. F. El-Kordy: “UASat Solar Array Design and Performance Characteristics”, International Journal of Science, Engineering and Technology Research, vo. 3, no. 2, pp. 167-172, 2014.
[14]
R. Radhakrishnana, W. W. Edmonsona, F. Afghahb, R. M. Rodriguez-Osorioc, F. Pinto, and S. C. Burleighd (2016). “Survey of Inter-satellite Communication for Small Satellite Systems: Physical Layer to Network Layer View” pp 1-51, Available at: www.arXiv:1609.08583v2, Accessed 13th December, 2018.
[15]
S. Chaieb, M. Wegerson, J. Straub, R. Marsh and D. Whalen, (2015): Design of an Electrical Power System for the Open Orbiter CubeSat. Available at: http://works.bepress.com/jeremy_straub/277/, (Accessed on 23rd August, 2015).
[16]
T. F. Catalano, S. Costantini and G. Daprati: “Sentinel-1 eps architecture and power conversion trade-off”, In Proceedings of the 9th European Space Power Conference, June 2011, Athens, Greece.
