Article,

TOPOLOGY AND CONFIGURATION SELECTION FOR DC/DC CONVERTERS IN SPACE ELECTRICAL POWER SYSTEMS BASED ON COMPARATIVE RELIABILITY EVALUATION

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Emerging Trends in Electrical, Electronics & Instrumentation Engineering: An international Journal, 2 (1): 5 (February 2015)

Abstract

Selection of DC/DC converter topology is one of the most challenging aspects in space Electrical Power Systems (EPS) design and development. It both highly, affects and is affected from EPS reliability requirements among the other EPS performance specifications. So ranking of DC/DC converters based on End-Of-Life (EOL) reliability is an undeniable need. In this paper, reliability of four DC/DC converters including buck, forward, fly-back, and Push-pull, as candidates for a 5-years-long, Low-Earth-Orbit (LEO) space mission, are evaluated and compared. Converters are assumed having similar design requirements and supervision and control elements with different power conversion parts and negligible reliability-affecting excess circuits.

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