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Energies 2017, 10(4), 521; doi:10.3390/en10040521

EMTP Model of a Bidirectional Cascaded Multilevel Solid State Transformer for Distribution System Studies

1
Estabanell Energia, 08401 Granollers, Spain
2
Departament d’Enginyeria Electrònica, Elèctrica i Automàtica, Universitat Rovira i Virgili, 43007 Tarragona, Spain
3
Departament d’Enginyeria Elèctrica, Universitat Politècnica de Catalunya, 08028 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Ying-Yi Hong
Received: 30 January 2017 / Revised: 10 March 2017 / Accepted: 10 April 2017 / Published: 12 April 2017
(This article belongs to the Special Issue Electric Power Systems Research 2017)
View Full-Text   |   Download PDF [11762 KB, uploaded 13 April 2017]   |  

Abstract

Abstract: This paper presents a time-domain model of a MV/LV bidirectional solid state transformer (SST). A multilevel converter configuration of the SST MV side is obtained by cascading a single-phase cell made of the series connection of an H bridge and a dual active bridge (dc-dc converter); the aim is to configure a realistic SST design suitable for MV levels. A three-phase four-wire converter has been used for the LV side, allowing the connection of both load/generation. The SST model, including the corresponding controllers, has been built and encapsulated as a custom-made model in the ATP version of the EMTP for application in distribution system studies. Several case studies have been carried out in order to evaluate the behavior of the proposed SST design under different operating conditions and check its impact on power quality. View Full-Text
Keywords: bidirectional converter; distribution system; EMTP/ATP; modular multilevel configuration; power quality; solid state transformer bidirectional converter; distribution system; EMTP/ATP; modular multilevel configuration; power quality; solid state transformer
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Martin-Arnedo, J.; González-Molina, F.; Martinez-Velasco, J.A.; Adabi, M.E. EMTP Model of a Bidirectional Cascaded Multilevel Solid State Transformer for Distribution System Studies. Energies 2017, 10, 521.

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