Isolated MMC-based ac/ac stage for ultrafast chargers

Ygor Pereira Marca; Maurice G.L. Roes; Jorge L.  Duarte; C.G.E. (Korneel) Wijnands

doi:10.1109/ISIE45552.2021.9576217

Isolated MMC-based ac/ac stage for ultrafast chargers

Ygor Pereira Marca, Maurice G.L. Roes, Jorge L. Duarte, C.G.E. (Korneel) Wijnands

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

17 Citations (Scopus)

417 Downloads (Pure)

Abstract

The application of indirect and direct modular multilevel converter-based topologies in an isolated ultrafast charger, operating from a three-phase medium-voltage grid, is compared. The most promising circuit is an isolated direct ac/ac modular multilevel converter, in which four-quadrant operation is possible by employing full-bridge sub-modules. The direct ac/ac conversion reduces the cost and volume of fast charging stations by eliminating line frequency transformers. An analytical model focusing on the decomposition of circuit states is employed to present the control scheme. Subsequently, the approach is validated with simulation results, corroborating the suitability for high-power bidirectional battery chargers.

Original language	English
Title of host publication	2021 IEEE 30th International Symposium on Industrial Electronics (ISIE)
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	8
ISBN (Electronic)	978-1-7281-9023-5
DOIs	https://doi.org/10.1109/ISIE45552.2021.9576217
Publication status	Published - 13 Nov 2021
Event	30th International Symposium on Industrial Electronics: Full Online Conference - Online, Kyoto, Japan Duration: 20 Jun 2021 → 23 Jun 2021 Conference number: 30 https://www.isie2021.org/

Conference

Conference	30th International Symposium on Industrial Electronics: Full Online Conference
Abbreviated title	IESIE 2021
Country/Territory	Japan
City	Kyoto
Period	20/06/21 → 23/06/21
Internet address	https://www.isie2021.org/

Keywords

battery
full-bridge
isolated
medium-voltage
modular multilevel converter
transformer
ultrafast charger

Access to Document

10.1109/ISIE45552.2021.9576217

ISIE2021_JapanFinal author version , 3.64 MB

Cite this

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title = "Isolated MMC-based ac/ac stage for ultrafast chargers",

abstract = "The application of indirect and direct modular multilevel converter-based topologies in an isolated ultrafast charger, operating from a three-phase medium-voltage grid, is compared. The most promising circuit is an isolated direct ac/ac modular multilevel converter, in which four-quadrant operation is possible by employing full-bridge sub-modules. The direct ac/ac conversion reduces the cost and volume of fast charging stations by eliminating line frequency transformers. An analytical model focusing on the decomposition of circuit states is employed to present the control scheme. Subsequently, the approach is validated with simulation results, corroborating the suitability for high-power bidirectional battery chargers.",

keywords = "battery, full-bridge, isolated, medium-voltage, modular multilevel converter, transformer, ultrafast charger",

author = "{Pereira Marca}, Ygor and Roes, {Maurice G.L.} and Duarte, {Jorge L.} and Wijnands, {C.G.E. (Korneel)}",

year = "2021",

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booktitle = "2021 IEEE 30th International Symposium on Industrial Electronics (ISIE)",

publisher = "Institute of Electrical and Electronics Engineers",

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note = "30th International Symposium on Industrial Electronics: Full Online Conference, IESIE 2021 ; Conference date: 20-06-2021 Through 23-06-2021",

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}

Pereira Marca, Y, Roes, MGL , Duarte, JL & Wijnands, CGE 2021, Isolated MMC-based ac/ac stage for ultrafast chargers. in 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE)., 9576217, Institute of Electrical and Electronics Engineers, 30th International Symposium on Industrial Electronics: Full Online Conference, Kyoto, Japan, 20/06/21. https://doi.org/10.1109/ISIE45552.2021.9576217

Isolated MMC-based ac/ac stage for ultrafast chargers. / Pereira Marca, Ygor; Roes, Maurice G.L.; Duarte, Jorge L. et al.
2021 IEEE 30th International Symposium on Industrial Electronics (ISIE). Institute of Electrical and Electronics Engineers, 2021. 9576217.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Isolated MMC-based ac/ac stage for ultrafast chargers

AU - Pereira Marca, Ygor

AU - Roes, Maurice G.L.

AU - Duarte, Jorge L.

AU - Wijnands, C.G.E. (Korneel)

N1 - Conference code: 30

PY - 2021/11/13

Y1 - 2021/11/13

N2 - The application of indirect and direct modular multilevel converter-based topologies in an isolated ultrafast charger, operating from a three-phase medium-voltage grid, is compared. The most promising circuit is an isolated direct ac/ac modular multilevel converter, in which four-quadrant operation is possible by employing full-bridge sub-modules. The direct ac/ac conversion reduces the cost and volume of fast charging stations by eliminating line frequency transformers. An analytical model focusing on the decomposition of circuit states is employed to present the control scheme. Subsequently, the approach is validated with simulation results, corroborating the suitability for high-power bidirectional battery chargers.

AB - The application of indirect and direct modular multilevel converter-based topologies in an isolated ultrafast charger, operating from a three-phase medium-voltage grid, is compared. The most promising circuit is an isolated direct ac/ac modular multilevel converter, in which four-quadrant operation is possible by employing full-bridge sub-modules. The direct ac/ac conversion reduces the cost and volume of fast charging stations by eliminating line frequency transformers. An analytical model focusing on the decomposition of circuit states is employed to present the control scheme. Subsequently, the approach is validated with simulation results, corroborating the suitability for high-power bidirectional battery chargers.

KW - battery

KW - full-bridge

KW - isolated

KW - medium-voltage

KW - modular multilevel converter

KW - transformer

KW - ultrafast charger

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U2 - 10.1109/ISIE45552.2021.9576217

DO - 10.1109/ISIE45552.2021.9576217

M3 - Conference contribution

BT - 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE)

PB - Institute of Electrical and Electronics Engineers

T2 - 30th International Symposium on Industrial Electronics: Full Online Conference

Y2 - 20 June 2021 through 23 June 2021

ER -

Isolated MMC-based ac/ac stage for ultrafast chargers

Abstract

Conference

Keywords

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