Print Email Facebook Twitter Suitable Submodule Switch Rating for Medium Voltage Modular Multilevel Converter Design Title Suitable Submodule Switch Rating for Medium Voltage Modular Multilevel Converter Design Author Shekhar, A. (TU Delft DC systems, Energy conversion & Storage) Soeiro, Thiago B. (TU Delft DC systems, Energy conversion & Storage) Qin, Z. (TU Delft DC systems, Energy conversion & Storage) Ramirez Elizondo, L.M. (TU Delft DC systems, Energy conversion & Storage) Bauer, P. (TU Delft DC systems, Energy conversion & Storage) Contributor Omekanda, A.M. (editor) Date 2018 Abstract An important step in Voltage-Source Modular Multilevel Converter (MMC) design is the selection of adequate semiconductor blocking voltage class. This paper highlights that particularly for grid connected medium voltage applications, the choice of suitable switch blocking voltage class is not so straightforward. The market available switch voltage ratings results in a discrete integer relationship for the number of submodules (N) with a fixed dc link voltage. This is shown to introduce interesting design trade-offs in consideration to investment costs, required capacitance for reasonable ripple voltage, submodule redundancy requirements, conduction switching losses. Using the example of a 10 MVA half bridge MMC connected to a 10 kV grid, it is shown that 1.7 kV and 3.3 kV insulated gate bipolar transitors (IGBTs) can be possible choices as compared to 1.2 kV, 4.5 kV and 6.5 kV blocking voltage. Subject Cascaded cellsHalf bridgeHigh powerIGBTMedium voltage distributionMultilevel converter designMVDCNumber of submodulesOptimum semiconductor voltage level To reference this document use: http://resolver.tudelft.nl/uuid:d36c154b-68ab-4111-bda9-0b7272b717a9 DOI https://doi.org/10.1109/ECCE.2018.8557566 Publisher Institute of Electrical and Electronics Engineers (IEEE) ISBN 978-147997311-8 Source 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018 Event 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018, 2018-09-23 → 2018-09-27, Portland, United States Part of collection Institutional Repository Document type conference paper Rights © 2018 A. Shekhar, Thiago B. Soeiro, Z. Qin, L.M. Ramirez Elizondo, P. Bauer Files PDF ECCE_emb.pdf 641.64 KB Close viewer /islandora/object/uuid:d36c154b-68ab-4111-bda9-0b7272b717a9/datastream/OBJ/view