A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications

Dereje Woldegiorgis; Yuqi Wei; Xia Du; Alan Mantooth

doi:10.1109/PEDG48541.2020.9244375

A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications

Dereje Woldegiorgis
, Yuqi Wei
, Xia Du
, Alan Mantooth

University of Arkansas, Fayetteville

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

7 Scopus citations

Abstract

This paper presents a new hybrid voltage source converter topology for HVDC applications. It consists of strings of diodes in the upper converter arms and cascaded switched-diode cells in the lower converter arms. Compared to the conventional Alternate Arm Modular Multilevel Converter (AA-MMC) families, which this converter belongs to, it reduces the number of active switches by half since the upper converter arms use naturally commutated devices (diodes). Therefore, it provides 50 percent reduction in the number of gate drivers and associate control circuits. In addition, it reduces the semiconductor device power loss significantly compared to other similar alternate arm converter topologies due to the reduction in the number of active switches and its unique circuit operation. The basic operating principle of the proposed converter and its associated control strategy that regulates the power exchange between the converter, and the ac and dc networks are discussed in detail. The operation of the proposed converter is verified using PLECS and simulation results validating its operations are presented.

Original language	English
Title of host publication	2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	522-526
Number of pages	5
ISBN (Electronic)	9781728169903
DOIs	https://doi.org/10.1109/PEDG48541.2020.9244375
State	Published - 28 Sep 2020
Externally published	Yes
Event	11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020 - Dubrovnik, Croatia Duration: 28 Sep 2020 → 1 Oct 2020

Publication series

Name	2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020

Conference

Conference	11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
Country/Territory	Croatia
City	Dubrovnik
Period	28/09/20 → 1/10/20

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

HVDC
alternate arm converter
hybrid voltage source converter
multilevel inverter
reduced device count

Access to Document

10.1109/PEDG48541.2020.9244375

Cite this

Woldegiorgis, D., Wei, Y., Du, X., & Mantooth, A. (2020). A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications. In 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020 (pp. 522-526). Article 9244375 (2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PEDG48541.2020.9244375

Woldegiorgis, Dereje ; Wei, Yuqi ; Du, Xia et al. / A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications. 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 522-526 (2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020).

@inproceedings{00862ad464274d59ae5d856833d91df5,

title = "A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications",

abstract = "This paper presents a new hybrid voltage source converter topology for HVDC applications. It consists of strings of diodes in the upper converter arms and cascaded switched-diode cells in the lower converter arms. Compared to the conventional Alternate Arm Modular Multilevel Converter (AA-MMC) families, which this converter belongs to, it reduces the number of active switches by half since the upper converter arms use naturally commutated devices (diodes). Therefore, it provides 50 percent reduction in the number of gate drivers and associate control circuits. In addition, it reduces the semiconductor device power loss significantly compared to other similar alternate arm converter topologies due to the reduction in the number of active switches and its unique circuit operation. The basic operating principle of the proposed converter and its associated control strategy that regulates the power exchange between the converter, and the ac and dc networks are discussed in detail. The operation of the proposed converter is verified using PLECS and simulation results validating its operations are presented.",

keywords = "HVDC, alternate arm converter, hybrid voltage source converter, multilevel inverter, reduced device count",

author = "Dereje Woldegiorgis and Yuqi Wei and Xia Du and Alan Mantooth",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020 ; Conference date: 28-09-2020 Through 01-10-2020",

year = "2020",

month = sep,

day = "28",

doi = "10.1109/PEDG48541.2020.9244375",

language = "英语",

series = "2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020",

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Woldegiorgis, D, Wei, Y, Du, X & Mantooth, A 2020, A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications. in 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020., 9244375, 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020, Institute of Electrical and Electronics Engineers Inc., pp. 522-526, 11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020, Dubrovnik, Croatia, 28/09/20. https://doi.org/10.1109/PEDG48541.2020.9244375

A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications. / Woldegiorgis, Dereje; Wei, Yuqi; Du, Xia et al.
2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 522-526 9244375 (2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020).

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

TY - GEN

T1 - A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications

AU - Woldegiorgis, Dereje

AU - Wei, Yuqi

AU - Du, Xia

AU - Mantooth, Alan

PY - 2020/9/28

Y1 - 2020/9/28

N2 - This paper presents a new hybrid voltage source converter topology for HVDC applications. It consists of strings of diodes in the upper converter arms and cascaded switched-diode cells in the lower converter arms. Compared to the conventional Alternate Arm Modular Multilevel Converter (AA-MMC) families, which this converter belongs to, it reduces the number of active switches by half since the upper converter arms use naturally commutated devices (diodes). Therefore, it provides 50 percent reduction in the number of gate drivers and associate control circuits. In addition, it reduces the semiconductor device power loss significantly compared to other similar alternate arm converter topologies due to the reduction in the number of active switches and its unique circuit operation. The basic operating principle of the proposed converter and its associated control strategy that regulates the power exchange between the converter, and the ac and dc networks are discussed in detail. The operation of the proposed converter is verified using PLECS and simulation results validating its operations are presented.

AB - This paper presents a new hybrid voltage source converter topology for HVDC applications. It consists of strings of diodes in the upper converter arms and cascaded switched-diode cells in the lower converter arms. Compared to the conventional Alternate Arm Modular Multilevel Converter (AA-MMC) families, which this converter belongs to, it reduces the number of active switches by half since the upper converter arms use naturally commutated devices (diodes). Therefore, it provides 50 percent reduction in the number of gate drivers and associate control circuits. In addition, it reduces the semiconductor device power loss significantly compared to other similar alternate arm converter topologies due to the reduction in the number of active switches and its unique circuit operation. The basic operating principle of the proposed converter and its associated control strategy that regulates the power exchange between the converter, and the ac and dc networks are discussed in detail. The operation of the proposed converter is verified using PLECS and simulation results validating its operations are presented.

KW - HVDC

KW - alternate arm converter

KW - hybrid voltage source converter

KW - multilevel inverter

KW - reduced device count

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BT - 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020

Y2 - 28 September 2020 through 1 October 2020

ER -

Woldegiorgis D, Wei Y, Du X, Mantooth A. A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications. In 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 522-526. 9244375. (2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020). doi: 10.1109/PEDG48541.2020.9244375

A New Hybrid Voltage Source Converter with Reduced Device Count for HVDC Applications

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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