DC current balance with common-mode voltage reduction for parallel current source converters

Li Ding; Yun Wei Li

doi:10.1109/ECCE.2017.8095870

DC current balance with common-mode voltage reduction for parallel current source converters

Li Ding
, Yun Wei Li

University of Alberta

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

6 Scopus citations

Abstract

Current source converter (CSC) is mainly applied in high medium voltage drives. To increase the system power region and reduce the output harmonics, parallel connection is an easy-implement and practical method. There are mainly two types of parallel based topologies. The direct parallel connect of two back-to-back CSCs is the first type, the two DC links can be controlled from the rectifier side independently. The second type constructed by one current source rectifier (CSR) on the grid side and two parallel current source inverters (CSIs) on the motor side, which can reduce the size and cost of the system. With two inverters sharing the same DC link, the DC current should be guaranteed with proper modulation to make the system work properly. Moreover, common-mode voltage (CMV) increases the line-to-ground voltage and damage the insulation system, which should also be suppressed. In this paper, the two types of topologies are compared from the DC current balance, CMV and circulating current point of views. An optimized multilevel based DC current balance method considering the CMV reduction is applied in the second type of topology. The effectiveness of proposed method is verified with simulation and experimental results.

Original language	English
Title of host publication	2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	824-829
Number of pages	6
ISBN (Electronic)	9781509029983
DOIs	https://doi.org/10.1109/ECCE.2017.8095870
State	Published - 3 Nov 2017
Externally published	Yes
Event	9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States Duration: 1 Oct 2017 → 5 Oct 2017

Publication series

Name	2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Volume	2017-January

Conference

Conference	9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Country/Territory	United States
City	Cincinnati
Period	1/10/17 → 5/10/17

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Circulating current
Common-mode voltage
Current source converter
DC current balance
Multilevel modulation

Access to Document

10.1109/ECCE.2017.8095870

Cite this

Ding, L., & Li, Y. W. (2017). DC current balance with common-mode voltage reduction for parallel current source converters. In 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017 (pp. 824-829). Article 8095870 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2017.8095870

@inproceedings{bdb820daed4b40ecb737d8e6a39ff763,

title = "DC current balance with common-mode voltage reduction for parallel current source converters",

abstract = "Current source converter (CSC) is mainly applied in high medium voltage drives. To increase the system power region and reduce the output harmonics, parallel connection is an easy-implement and practical method. There are mainly two types of parallel based topologies. The direct parallel connect of two back-to-back CSCs is the first type, the two DC links can be controlled from the rectifier side independently. The second type constructed by one current source rectifier (CSR) on the grid side and two parallel current source inverters (CSIs) on the motor side, which can reduce the size and cost of the system. With two inverters sharing the same DC link, the DC current should be guaranteed with proper modulation to make the system work properly. Moreover, common-mode voltage (CMV) increases the line-to-ground voltage and damage the insulation system, which should also be suppressed. In this paper, the two types of topologies are compared from the DC current balance, CMV and circulating current point of views. An optimized multilevel based DC current balance method considering the CMV reduction is applied in the second type of topology. The effectiveness of proposed method is verified with simulation and experimental results.",

keywords = "Circulating current, Common-mode voltage, Current source converter, DC current balance, Multilevel modulation",

author = "Li Ding and Li, \{Yun Wei\}",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 ; Conference date: 01-10-2017 Through 05-10-2017",

year = "2017",

month = nov,

day = "3",

doi = "10.1109/ECCE.2017.8095870",

language = "英语",

series = "2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017",

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Ding, L & Li, YW 2017, DC current balance with common-mode voltage reduction for parallel current source converters. in 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017., 8095870, 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017, vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 824-829, 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017, Cincinnati, United States, 1/10/17. https://doi.org/10.1109/ECCE.2017.8095870

DC current balance with common-mode voltage reduction for parallel current source converters. / Ding, Li; Li, Yun Wei.
2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 824-829 8095870 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017; Vol. 2017-January).

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

TY - GEN

T1 - DC current balance with common-mode voltage reduction for parallel current source converters

AU - Ding, Li

AU - Li, Yun Wei

PY - 2017/11/3

Y1 - 2017/11/3

N2 - Current source converter (CSC) is mainly applied in high medium voltage drives. To increase the system power region and reduce the output harmonics, parallel connection is an easy-implement and practical method. There are mainly two types of parallel based topologies. The direct parallel connect of two back-to-back CSCs is the first type, the two DC links can be controlled from the rectifier side independently. The second type constructed by one current source rectifier (CSR) on the grid side and two parallel current source inverters (CSIs) on the motor side, which can reduce the size and cost of the system. With two inverters sharing the same DC link, the DC current should be guaranteed with proper modulation to make the system work properly. Moreover, common-mode voltage (CMV) increases the line-to-ground voltage and damage the insulation system, which should also be suppressed. In this paper, the two types of topologies are compared from the DC current balance, CMV and circulating current point of views. An optimized multilevel based DC current balance method considering the CMV reduction is applied in the second type of topology. The effectiveness of proposed method is verified with simulation and experimental results.

AB - Current source converter (CSC) is mainly applied in high medium voltage drives. To increase the system power region and reduce the output harmonics, parallel connection is an easy-implement and practical method. There are mainly two types of parallel based topologies. The direct parallel connect of two back-to-back CSCs is the first type, the two DC links can be controlled from the rectifier side independently. The second type constructed by one current source rectifier (CSR) on the grid side and two parallel current source inverters (CSIs) on the motor side, which can reduce the size and cost of the system. With two inverters sharing the same DC link, the DC current should be guaranteed with proper modulation to make the system work properly. Moreover, common-mode voltage (CMV) increases the line-to-ground voltage and damage the insulation system, which should also be suppressed. In this paper, the two types of topologies are compared from the DC current balance, CMV and circulating current point of views. An optimized multilevel based DC current balance method considering the CMV reduction is applied in the second type of topology. The effectiveness of proposed method is verified with simulation and experimental results.

KW - Circulating current

KW - Common-mode voltage

KW - Current source converter

KW - DC current balance

KW - Multilevel modulation

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DO - 10.1109/ECCE.2017.8095870

M3 - 会议稿件

AN - SCOPUS:85041396038

T3 - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017

SP - 824

EP - 829

BT - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017

Y2 - 1 October 2017 through 5 October 2017

ER -

DC current balance with common-mode voltage reduction for parallel current source converters

Abstract

Publication series

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UN SDGs

Keywords

Access to Document

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