Design of a Photovoltaic Power Supply for Nanosatellites
Konferenz: PCIM Europe digital days 2021 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
03.05.2021 - 07.05.2021 in Online
Tagungsband: PCIM Europe digital days 2021
Seiten: 8Sprache: EnglischTyp: PDF
Autoren:
Brinker, Tobias; Graue, Janosch; Sawang, Francis; Friebe, Jens (Institute for Drive Systems and Power Electronics, Leibniz University Hannover, Germany)
Gehl, Adrian; Priefer, Frederik; Wicht, Bernhard (Institute for Microelectronic Systems, Leibniz University Hannover, Germany)
Inhalt:
The objective of this paper is to present a multi-input, multi-output photovoltaic DC/DC-converter system that is equipped with a battery as energy storage. Furthermore, a specific control strategy is proposed, which allows individual MPP tracking with a reduced number of current and voltage sensors. Due to the system concept, a dedicated battery charge controller is not required. For proof of function, a simulation model is used. Gallium Nitride (GaN) HEMTs are used to increase the efficiency of the input stages. A hardware demonstrator board was built and efficiency measurements were performed.