ISBN 9783843956918

978-3-8439-5691-8, Reihe Raumfahrt

Markus Koller
A Novel Space-Based Testbed for Solar Cell Characterisation

273 Seiten, Dissertation Universität Stuttgart (2025), Softcover, A5

Zusammenfassung / Abstract

Abstract für DNB muss zwischen 500 und 2000 Zeichen lang sein. Bitte kein Copy Paste aus Word oder LaTeX, da Steuerzeichen enthalten sind. Unicodezeichen belegen entsprechend mehr Zeichen, auch wenn Sie am Bildschirm nur einSpace solar cells face extreme conditions in orbit. While modern solar simulators have reduced the need for in-orbit testing, nanosatellites have revived interest in such experiments due to their ability to provide rapid, cost-effective access to diverse orbital environments. These missions enable studies on degradation mechanisms and long-term stability and allow new solar cell technologies to demonstrate their space performance for commercial validation. However, nanosatellite-based experiments are often limited by data quantity, measurement accuracy, and restricted operational time.

This thesis presents the design, testing, and successful in-orbit operation of a compact, high-precision solar cell testbed developed for nanosatellites. The system was realised as a secondary payload on the EIVE nanosatellite, designed within tight power, mass, and data constraints. Test samples, provided by AZUR SPACE, included metal-wrap-through triple-junction and standard quadruple-junction cells. An enhanced MOSFET-based electronic load with current-feedback and π-control circuitry ensured high-fidelity IV-curve acquisition. In-orbit results gathered during the entire EIVE mission are presented and analysed to demonstrate the performance of the developed instrument. Zeichen sehen.

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