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Cited by 32Advanced DC-DC ConvertersMultilevel Inverters and ConvertersWireless Power Transfer Systems

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Design and implementation of a 7.2kV single stage AC-AC solid state transformer based on current source series resonant converter and 15 kV SiC MOSFET

Zhu, Qianlai, Wang, Li, Chen, Dong, Zhang, Liqi, Huang, Alex Q.·2017·2017 IEEE Energy Conversion Congress and Exposition (ECCE)
DOI 10.1109/ecce.2017.8095938
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Abstract

This paper introduces a 97% efficiency medium voltage (MV) Solid State Transformer (SST) based on two-level single stage (TLSS) topology and 15 kV SiC MOSFETs. Series resonant converter (SRC) is implemented as the main stage and is identified as a current source (CS) SRC for the first time. Equivalent resonant frequency of the proposed CS-SRC is analyzed in both time domain and frequency domain. Resonant frequency calculation equation is derived and can be used to accurately design the resonant tank. Zero voltage switching (ZVS) for 15 kV SiC MOSFET in CS-SRC topology under extremely wide input voltage from 0V to 10 kV is analyzed and designed at a medium frequency (MF) of 40 kHz. Partial discharge for the 15 kV SiC MOSFET's parasitic capacitor are explained and the associated turn on loss equations are derived. Magnetizing inductance Lm and deadtime tdead are further optimized based on the trade-off between the turn on loss and conduction loss of the semiconductor devices. A fully functional and compact SST based on the proposed concept is developed and tested with an input of voltage of 7.2 kVac and from 1 kW to 12 kW. The efficiency is higher than 97% under most load conditions.

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Research works printed but not linked: 25

  1. 10.1109/APEC.2016.7468139 · DOI
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Metadata

Authors
Zhu, Q., Wang, L., Chen, D., Zhang, L., & Huang, A. Q.
Affiliations
North Carolina State University (US)
ORCID
Venue
2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Publisher
IEEE
Published
2017-10
Pages
1288-1295
DOI
10.1109/ecce.2017.8095938
OpenAlex
W2769957855
Cited by
32
References
1
Citations by year
2026: 2 · 2025: 2 · 2024: 2 · 2023: 5 · 2022: 4 · 2021: 4 · 2020: 3 · 2019: 3 · 2018: 6 · 2017: 1
FWCI
5.03
Type
conference paper
Language
en
Open access
closed
Locations
IEEE Energy Conversion Congress and Exposition (ECCE) (publishedVersion)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
Keywords
solid-state transformer, AC-AC conversion, SiC MOSFET, medium-voltage power conversion, zero-voltage switching, partial discharge, turn-on loss, resonant frequency calculation, resonant tank design, conduction losses, high-voltage power electronics

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