Reliability-Based Fault Analysis and Modeling of Satellite Electrical Power Subsystems Using Fault Tree and Simulation Tools

Fuente: arXiv
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Main Authors: Nobahari, Niloofar, Rezaee, Alireza
Format: Preprint
Published: 2025
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author Nobahari, Niloofar
Rezaee, Alireza
author_facet Nobahari, Niloofar
Rezaee, Alireza
contents One of the most important satellite subsystems is its electric power subsystem. The occurrence of a fault in the satellite power system causes the failure of all or part of the satellite. Calculating the overall reliability of the power system before the mission is crucial in improving the design of the satellite power system. Each component of the power system may malfunction due to pressure, launch pressure, and operating conditions. Accordingly, in this paper, first, a healthy and faulty system for the components of the electrical power system is simulated with MATLAB. Finally, by drawing a fault tree to analyze the reliability of the power subsystem, overall mission reliability, power system fault rate, and overall fault rate of the mission are calculated by Windchill software. Finally, a total mission assurance of 0.999 was achieved, indicating the high reliability of the simulated system.
format Preprint
id arxiv_https___arxiv_org_abs_2507_15708
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Reliability-Based Fault Analysis and Modeling of Satellite Electrical Power Subsystems Using Fault Tree and Simulation Tools
Nobahari, Niloofar
Rezaee, Alireza
Systems and Control
One of the most important satellite subsystems is its electric power subsystem. The occurrence of a fault in the satellite power system causes the failure of all or part of the satellite. Calculating the overall reliability of the power system before the mission is crucial in improving the design of the satellite power system. Each component of the power system may malfunction due to pressure, launch pressure, and operating conditions. Accordingly, in this paper, first, a healthy and faulty system for the components of the electrical power system is simulated with MATLAB. Finally, by drawing a fault tree to analyze the reliability of the power subsystem, overall mission reliability, power system fault rate, and overall fault rate of the mission are calculated by Windchill software. Finally, a total mission assurance of 0.999 was achieved, indicating the high reliability of the simulated system.
title Reliability-Based Fault Analysis and Modeling of Satellite Electrical Power Subsystems Using Fault Tree and Simulation Tools
topic Systems and Control
url https://arxiv.org/abs/2507.15708