Input Parallel Output Series Structure of Planar Medium Frequency Transformers for 200 kW Power Converter: Model and Parameters Evaluation

Alessandro La Ganga, Roberto Re and Paolo Guglielmi
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Alessandro La Ganga: Politecnico di Torino, Department of Energy, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Roberto Re: Politecnico di Torino, Department of Energy, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Paolo Guglielmi: Politecnico di Torino, Department of Energy, Corso Duca degli Abruzzi 24, 10129 Torino, Italy

Energies, 2021, vol. 14, issue 5, 1-20

Abstract: Nowadays, the demand for high power converters for DC applications, such as renewable sources or ultra-fast chargers for electric vehicles, is constantly growing. Galvanic isolation is mandatory in most of these applications. In this context, the Solid State Transformer (SST) converter plays a fundamental role. The adoption of the Medium Frequency Transformers (MFT) guarantees galvanic isolation in addition to high performance in reduced size. In the present paper, a multi MFT structure is proposed as a solution to improve the power density and the modularity of the system. Starting from 20 kW planar transformer model, experimentally validated, a multi-transformer structure is analyzed. After an analytical treatment of the Input Parallel Output Series (IPOS) structure, an equivalent electrical model of a 200 kW IPOS (made by 10 MFTs) is introduced. The model is validated by experimental measurements and tests.

Keywords: power transformers; model; IPOS; 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: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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