
Publica
Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Development of a high efficient MPPT for space applications using GaN power transistors
| MESAGO PCIM GmbH, Stuttgart: PCIM Europe 2017, International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. Proceedings : Nuremberg, 16 - 18 May 2017 Berlin: VDE Verlag, 2017 ISBN: 978-3-8007-4424-4 6 S. |
| PCIM Europe <2017, Nuremberg> |
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| Englisch |
| Konferenzbeitrag |
| Fraunhofer ISE () |
Abstract
The contribution evaluates a maximum power point tracker (MPPT) designed as power conditioning unit for space applications. The results of the study show that the 3-leg interleaved buck converter and the proposed operation mode offer a superior solution in order to meet the specific demands of power electronics in Low Earth Orbit (LEO) satellites. By implementing gallium nitride power transistors ideal heat dissipation and a high power-to-weight ratio of 10 kW/kg can be achieved. Furthermore a high efficiency of more than 97.5 % and a continuous power point optimization of the solar array lead to a lower overall system weight.