A New Voltage Balancer with DC-DC Converter Function

Sanghun Kim; Heung Geun Kim; Honnyong Cha

doi:10.1109/ACEPT.2018.8610826

A New Voltage Balancer with DC-DC Converter Function

Sanghun Kim
, Heung Geun Kim
, Honnyong Cha

School of Energy Engineering

Kyungpook National University

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

16 Scopus citations

Abstract

In dc microgrid, a bipolar dc bus configuration has more merits than an unipolar one, due to higher reliability, easy grounding, and having more voltage levels. However, tight voltage balancing control is necessary to handle unbalanced power between positive and negative buses. To solve this issue effectively, this paper proposes a new voltage balancer with dc-dc converter function. The proposed balancer can serve as both a voltage balancer and a bidirectional dc-dc converter. Thus, it can be applied to battery management system or fast charger in electric vehicles (EVs) charging station while balancing the bipolar dc bus voltages. Unlike the conventional voltage balancing control using a three-level dc-dc converter, the voltage balancing range of the proposed system is not limited. To confirm this superiority, a comparison of the voltage balancing range between the proposed and conventional scheme is explored. Simulation and experimental results are provided in order to validate the effectiveness of the proposed system.

Original language	English
Title of host publication	2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538681367
DOIs	https://doi.org/10.1109/ACEPT.2018.8610826
State	Published - 2 Jul 2018
Event	2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018 - Singapore, Singapore Duration: 30 Oct 2018 → 2 Nov 2018

Publication series

Name	2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018

Conference

Conference	2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018
Country/Territory	Singapore
City	Singapore
Period	30/10/18 → 2/11/18

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Bidirectional DC-DC converter
Bipolar dc bus
Series-capacitor DC-DC converter
Voltage balancer
Voltage balancing control

Access to Document

10.1109/ACEPT.2018.8610826

Cite this

Kim, S., Kim, H. G., & Cha, H. (2018). A New Voltage Balancer with DC-DC Converter Function. In 2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018 Article 8610826 (2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ACEPT.2018.8610826

@inproceedings{462eba28f990437e9e88d7947c03e7ab,

title = "A New Voltage Balancer with DC-DC Converter Function",

abstract = "In dc microgrid, a bipolar dc bus configuration has more merits than an unipolar one, due to higher reliability, easy grounding, and having more voltage levels. However, tight voltage balancing control is necessary to handle unbalanced power between positive and negative buses. To solve this issue effectively, this paper proposes a new voltage balancer with dc-dc converter function. The proposed balancer can serve as both a voltage balancer and a bidirectional dc-dc converter. Thus, it can be applied to battery management system or fast charger in electric vehicles (EVs) charging station while balancing the bipolar dc bus voltages. Unlike the conventional voltage balancing control using a three-level dc-dc converter, the voltage balancing range of the proposed system is not limited. To confirm this superiority, a comparison of the voltage balancing range between the proposed and conventional scheme is explored. Simulation and experimental results are provided in order to validate the effectiveness of the proposed system.",

keywords = "Bidirectional DC-DC converter, Bipolar dc bus, Series-capacitor DC-DC converter, Voltage balancer, Voltage balancing control",

author = "Sanghun Kim and Kim, \{Heung Geun\} and Honnyong Cha",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018 ; Conference date: 30-10-2018 Through 02-11-2018",

year = "2018",

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doi = "10.1109/ACEPT.2018.8610826",

language = "English",

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Kim, S, Kim, HG & Cha, H 2018, A New Voltage Balancer with DC-DC Converter Function. in 2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018., 8610826, 2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018, Institute of Electrical and Electronics Engineers Inc., 2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018, Singapore, Singapore, 30/10/18. https://doi.org/10.1109/ACEPT.2018.8610826

A New Voltage Balancer with DC-DC Converter Function. / Kim, Sanghun; Kim, Heung Geun; Cha, Honnyong.
2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8610826 (2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018).

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

TY - GEN

T1 - A New Voltage Balancer with DC-DC Converter Function

AU - Kim, Sanghun

AU - Kim, Heung Geun

AU - Cha, Honnyong

PY - 2018/7/2

Y1 - 2018/7/2

N2 - In dc microgrid, a bipolar dc bus configuration has more merits than an unipolar one, due to higher reliability, easy grounding, and having more voltage levels. However, tight voltage balancing control is necessary to handle unbalanced power between positive and negative buses. To solve this issue effectively, this paper proposes a new voltage balancer with dc-dc converter function. The proposed balancer can serve as both a voltage balancer and a bidirectional dc-dc converter. Thus, it can be applied to battery management system or fast charger in electric vehicles (EVs) charging station while balancing the bipolar dc bus voltages. Unlike the conventional voltage balancing control using a three-level dc-dc converter, the voltage balancing range of the proposed system is not limited. To confirm this superiority, a comparison of the voltage balancing range between the proposed and conventional scheme is explored. Simulation and experimental results are provided in order to validate the effectiveness of the proposed system.

AB - In dc microgrid, a bipolar dc bus configuration has more merits than an unipolar one, due to higher reliability, easy grounding, and having more voltage levels. However, tight voltage balancing control is necessary to handle unbalanced power between positive and negative buses. To solve this issue effectively, this paper proposes a new voltage balancer with dc-dc converter function. The proposed balancer can serve as both a voltage balancer and a bidirectional dc-dc converter. Thus, it can be applied to battery management system or fast charger in electric vehicles (EVs) charging station while balancing the bipolar dc bus voltages. Unlike the conventional voltage balancing control using a three-level dc-dc converter, the voltage balancing range of the proposed system is not limited. To confirm this superiority, a comparison of the voltage balancing range between the proposed and conventional scheme is explored. Simulation and experimental results are provided in order to validate the effectiveness of the proposed system.

KW - Bidirectional DC-DC converter

KW - Bipolar dc bus

KW - Series-capacitor DC-DC converter

KW - Voltage balancer

KW - Voltage balancing control

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DO - 10.1109/ACEPT.2018.8610826

M3 - Conference contribution

AN - SCOPUS:85062067502

T3 - 2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018

BT - 2018 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2018

PB - Institute of Electrical and Electronics Engineers Inc.

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Y2 - 30 October 2018 through 2 November 2018

ER -

A New Voltage Balancer with DC-DC Converter Function

Abstract

Publication series

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UN SDGs

Keywords

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