Performance evaluation of SiC MOSFETs for isolated DC/DC conversion in Medium Voltage Photovoltaic Power Plants - Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux
Conference Papers Year : 2022

Performance evaluation of SiC MOSFETs for isolated DC/DC conversion in Medium Voltage Photovoltaic Power Plants

Abstract

Over the last decade, the rating of photovoltaic power stations has increased progressively; however; they still operate at low voltage (below 1500VDC for PV string side and below 800VAC-3~ for the power injection side. Hence, new architectures with an intermediate MVDC collector are investigated. This paper introduces a new topology of isolated DC/DC converter based on 1.7-kV and 3.3-kV SiC power modules, which allows the connection of PV panels to a MVDC collector upstream from the MVAC distribution grid. As a prelude to the realization of a full-scale prototype, 1.7 kV SiC MOSFETs are characterized in hard- and soft-switching condition. Finally, a study supported by simulations pointed out that the proposed converter shows a high efficiency (> 98.5%)

Domains

Electric power
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Dates and versions

hal-03799204 , version 1 (09-09-2024)

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Minh-Nhut Ngo, Philippe Ladoux, Jérémy Martin, Sébastien Sanchez, Anthony Bier. Performance evaluation of SiC MOSFETs for isolated DC/DC conversion in Medium Voltage Photovoltaic Power Plants. PCIM Europe 2022 - International Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, May 2022, Nuremberg, Germany. ⟨10.30420/565822043⟩. ⟨hal-03799204⟩
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