Identification and Prioritization of Satellite Electrical Power Subsystem Technologies for National Development Based on Multiple Criteria Decision-Making

Abstract

The prioritization and validation of emerging space technologies involve a multi-step, iterative process that necessitates the integration of collective intelligence from all stakeholders alongside analytical methods to identify requirements. This process begins with identifying specialists with sufficient knowledge and experience regarding each technology, extracting and evaluating essential data, prioritizing technology options, identifying challenging technologies, determining essential acquisition strategies, and finally, prioritizing these technologies. This article presents a method to identify and prioritize certain space technologies suitable for a satellite's Electrical Power Subsystem (EPS). Based on the results, it is possible to determine the most effective method to acquire the necessary technology through national development or by leveraging existing technologies available in the market.The power subsystem components are categorized into three groups to evaluate the proposed method: electrical power generation sources, energy storage sources, and power electronic circuits. The results indicate that among all technologies studied, GaAs solar cells, lithium-ion batteries, and electronic circuits constructed with military and industrial components should be prioritized for national development. Additionally, the proposed method demonstrates that the selected technologies are those recently employed in space applications. This methodology can also be extended to other subsystems.

Keywords

• electrical power subsystem
• space technologies
• prioritization
• multiple decision making
• simple additive weighting