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

Jacinto Martin-Arnedo, Francisco González-Molina, Juan A. Martinez-Velasco and Mohammad Ebrahim Adabi
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Jacinto Martin-Arnedo: Estabanell Energia, 08401 Granollers, Spain
Francisco González-Molina: Departament d’Enginyeria Electrònica, Elèctrica i Automàtica, Universitat Rovira i Virgili, 43007 Tarragona, Spain
Juan A. Martinez-Velasco: Departament d’Enginyeria Elèctrica, Universitat Politècnica de Catalunya, 08028 Barcelona, Spain
Mohammad Ebrahim Adabi: Departament d’Enginyeria Elèctrica, Universitat Politècnica de Catalunya, 08028 Barcelona, Spain

Energies, 2017, vol. 10, issue 4, 1-19

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.

Keywords: bidirectional converter; distribution system; EMTP/ATP; modular multilevel configuration; power quality; solid state transformer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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