A Quasi-3-Level Active Neutral Point Clamped Converter for Onboard Chargers in Electric Vehicles

Anand Krishnamurthy Iyer; Prasanth Venugopal; Thiago Batista Soeiro

doi:10.1109/SPEC56436.2023.10407959

A Quasi-3-Level Active Neutral Point Clamped Converter for Onboard Chargers in Electric Vehicles

Anand Krishnamurthy Iyer^*, Prasanth Venugopal, Thiago Batista Soeiro

^*Corresponding author for this work

Power Electronics

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

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Abstract

A Quasi-3-Level (Q3L) Active Neutral Point Clamped (ANPC) converter is introduced that allows for higher-efficiencies and power-densities for high-voltage bidirectional AC-DC converters, which are especially relevant in the On-board Chargers (OBC) design in an Electric Vehicle (EV). The use of Quasi-2-level (Q2L) cells to allow the use of lower-voltage rated semiconductor devices is explored and the balancing schemes of the flying-capacitor are discussed. Carrier-based modulation schemes and subsequent semiconductor duty-cycles and RMS current are derived, along with the filter sizing which provides the design expressions of the converter. The effect of switching frequency (and consequently, the power density) on the efficiency is analysed. The operation of the converter is verified in simulations and the analytically calculated design parameters are verified.

Original language	English
Title of host publication	2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP)
Publisher	IEEE
Number of pages	8
ISBN (Electronic)	979-8-3503-2112-8
ISBN (Print)	979-8-3503-2113-5
DOIs	https://doi.org/10.1109/SPEC56436.2023.10407959
Publication status	Published - 1 Feb 2024
Event	IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference, SPEC 2023 - Florianopolis, Brazil Duration: 26 Nov 2023 → 29 Nov 2023 Conference number: 8 https://spec-ieee.org/spec2023/

Publication series

Name	2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP)
Publisher	IEEE
Number	8
Volume	2023
ISSN (Print)	2832-2983

Conference

Conference	IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference, SPEC 2023
Abbreviated title	SPEC 2023
Country/Territory	Brazil
City	Florianopolis
Period	26/11/23 → 29/11/23
Internet address	https://spec-ieee.org/spec2023/

Keywords

Electric Vehicles
Onboard charger
Multi-level converters
Quasi-2-level
Power factor correction
2024 OA procedure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/SPEC56436.2023.10407959

Accepted versionAccepted author version, 2.28 MBLicence: Other
ArticleFinal published version, 2.32 MBLicence: Taverne

Cite this

Iyer, A. K., Venugopal, P., & Batista Soeiro, T. (2024). A Quasi-3-Level Active Neutral Point Clamped Converter for Onboard Chargers in Electric Vehicles. In 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP) (2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP); Vol. 2023, No. 8). IEEE. https://doi.org/10.1109/SPEC56436.2023.10407959

Iyer, Anand Krishnamurthy ; Venugopal, Prasanth ; Batista Soeiro, Thiago. / A Quasi-3-Level Active Neutral Point Clamped Converter for Onboard Chargers in Electric Vehicles. 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP). IEEE, 2024. (2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP); 8).

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abstract = "A Quasi-3-Level (Q3L) Active Neutral Point Clamped (ANPC) converter is introduced that allows for higher-efficiencies and power-densities for high-voltage bidirectional AC-DC converters, which are especially relevant in the On-board Chargers (OBC) design in an Electric Vehicle (EV). The use of Quasi-2-level (Q2L) cells to allow the use of lower-voltage rated semiconductor devices is explored and the balancing schemes of the flying-capacitor are discussed. Carrier-based modulation schemes and subsequent semiconductor duty-cycles and RMS current are derived, along with the filter sizing which provides the design expressions of the converter. The effect of switching frequency (and consequently, the power density) on the efficiency is analysed. The operation of the converter is verified in simulations and the analytically calculated design parameters are verified.",

keywords = "Electric Vehicles, Onboard charger, Multi-level converters, Quasi-2-level, Power factor correction, 2024 OA procedure",

author = "Iyer, {Anand Krishnamurthy} and Prasanth Venugopal and {Batista Soeiro}, Thiago",

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Iyer, AK , Venugopal, P & Batista Soeiro, T 2024, A Quasi-3-Level Active Neutral Point Clamped Converter for Onboard Chargers in Electric Vehicles. in 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP). 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP), no. 8, vol. 2023, IEEE, IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference, SPEC 2023, Florianopolis, Brazil, 26/11/23. https://doi.org/10.1109/SPEC56436.2023.10407959

A Quasi-3-Level Active Neutral Point Clamped Converter for Onboard Chargers in Electric Vehicles. / Iyer, Anand Krishnamurthy ; Venugopal, Prasanth ; Batista Soeiro, Thiago.
2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP). IEEE, 2024. (2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP); Vol. 2023, No. 8).

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

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T1 - A Quasi-3-Level Active Neutral Point Clamped Converter for Onboard Chargers in Electric Vehicles

AU - Iyer, Anand Krishnamurthy

AU - Venugopal, Prasanth

AU - Batista Soeiro, Thiago

N1 - Conference code: 8

PY - 2024/2/1

Y1 - 2024/2/1

N2 - A Quasi-3-Level (Q3L) Active Neutral Point Clamped (ANPC) converter is introduced that allows for higher-efficiencies and power-densities for high-voltage bidirectional AC-DC converters, which are especially relevant in the On-board Chargers (OBC) design in an Electric Vehicle (EV). The use of Quasi-2-level (Q2L) cells to allow the use of lower-voltage rated semiconductor devices is explored and the balancing schemes of the flying-capacitor are discussed. Carrier-based modulation schemes and subsequent semiconductor duty-cycles and RMS current are derived, along with the filter sizing which provides the design expressions of the converter. The effect of switching frequency (and consequently, the power density) on the efficiency is analysed. The operation of the converter is verified in simulations and the analytically calculated design parameters are verified.

AB - A Quasi-3-Level (Q3L) Active Neutral Point Clamped (ANPC) converter is introduced that allows for higher-efficiencies and power-densities for high-voltage bidirectional AC-DC converters, which are especially relevant in the On-board Chargers (OBC) design in an Electric Vehicle (EV). The use of Quasi-2-level (Q2L) cells to allow the use of lower-voltage rated semiconductor devices is explored and the balancing schemes of the flying-capacitor are discussed. Carrier-based modulation schemes and subsequent semiconductor duty-cycles and RMS current are derived, along with the filter sizing which provides the design expressions of the converter. The effect of switching frequency (and consequently, the power density) on the efficiency is analysed. The operation of the converter is verified in simulations and the analytically calculated design parameters are verified.

KW - Electric Vehicles

KW - Onboard charger

KW - Multi-level converters

KW - Quasi-2-level

KW - Power factor correction

KW - 2024 OA procedure

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DO - 10.1109/SPEC56436.2023.10407959

M3 - Conference contribution

SN - 979-8-3503-2113-5

T3 - 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP)

BT - 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP)

PB - IEEE

T2 - IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference, SPEC 2023

Y2 - 26 November 2023 through 29 November 2023

ER -

Iyer AK , Venugopal P , Batista Soeiro T. A Quasi-3-Level Active Neutral Point Clamped Converter for Onboard Chargers in Electric Vehicles. In 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP). IEEE. 2024. (2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP); 8). doi: 10.1109/SPEC56436.2023.10407959

A Quasi-3-Level Active Neutral Point Clamped Converter for Onboard Chargers in Electric Vehicles

Abstract

Publication series

Conference

Keywords

UN SDGs

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