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Design and implementation of a power distribution system adopting overcurrent protection

Published online by Cambridge University Press:  15 July 2020

M. Bekhti Open the ORCID record for M. Bekhti [Opens in a new window] ,
M. Bensaada  and
M. Beldjehem
M. Bekhti*
Affiliation:
Algerian Space Agency, Centre for Satellites Development, Research Department in Space Instrumentation, Oran, Algeria
M. Bensaada
Affiliation:
Algerian Space Agency, Centre for Satellites Development, Research Department in Space Instrumentation, Oran, Algeria
M. Beldjehem
Affiliation:
Algerian Space Agency, Centre for Satellites Development, Research Department in Space Instrumentation, Oran, Algeria
*
[email protected]
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Abstract

One of the most critical aspects of a small satellite is the electrical power system (EPS) since the electrical power is necessary for the satellite to operate correctly during its predefined lifetime. The electrical power system consists mainly of solar cells, batteries, voltage converters and protection circuits. The electrical power system is responsible of providing stable power to the rest of the satellite subsystems.

In satellite electrical power systems, overcurrent protection is now becoming an important function handled by the power distribution module (PDM). This paper proposes a method to evaluate the suggested protection. With the proposed procedure we should be able to verify that every possible failure does not travel through the EPS and cause a fatal degradation of the electrical power system. This will allow a complete evaluation of functionality of the protection hardware.

This paper discusses the design and implementation of the power distribution module (PDM) for the coming generation of small satellites for the Algerian Space Agency (ASAL). The design must provide a reliable protection for the subsystems from the overcurrent associated with a device failure.

Keywords

Power systemsmall satellitesbipolar junction transistor (BJT) switchfield effect transistor (FET) switchhard wire switchfusesresettable fusespower distribution module
Type
Research Article
Information
The Aeronautical Journal , Volume 124 , Issue 1281 , November 2020 , pp. 1789 - 1797
Copyright
© The Author(s), 2020. Published by Cambridge University Press on behalf of Royal Aeronautical Society

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