A Novel 7-Leg Topology for 3-Phase 4-Wire Unified Power Quality Conditioner

Houkai Zhang; Guochun Xiao; Zhaolin Lu; Yuechen Rui; Xianghao Cao; Fangzhou Zhao

doi:10.1109/COMPEL49091.2020.9265791

A Novel 7-Leg Topology for 3-Phase 4-Wire Unified Power Quality Conditioner

Houkai Zhang
, Guochun Xiao
, Zhaolin Lu
, Yuechen Rui
, Xianghao Cao
, Fangzhou Zhao

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

1 Citation (Scopus)

Abstract

It is necessary to improve the power quality for the normal operation of the loads as well as the power system, where the unified power quality conditioner (UPQC) is considered as an effective solution. In this paper, considering the degree of freedom (DOF), a novel 7-leg UPQC is proposed for the 3-phase 4-wire power system, which is simplified from the dual-4-leg UPQC with complete compensation functions; then, modeling, power rating, control, and modulation of the 7-leg UPQC are analyzed and compared with the dual-4-leg UPQC, indicating that the 7-leg UPQC is capable of compensating balanced/unbalanced voltage sag (including zero-sequence voltage), unbalanced current (includingzero-sequence current), reactive current, and harmonic current as the dual-4-leg UPQC using the same control strategy, while the cost of the 7-leg UPQC is lower. The feasibility of the 7-leg UPQC isverified by simulations.

Original language	English
Title of host publication	2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020
Publisher	IEEE (Institute of Electrical and Electronics Engineers)
Publication date	9 Nov 2020
Article number	9265791
ISBN (Print)	978-1-7281-7161-6
ISBN (Electronic)	978-1-7281-7160-9
DOIs	https://doi.org/10.1109/COMPEL49091.2020.9265791
Publication status	Published - 9 Nov 2020
Event	21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 - Aalborg, Denmark Duration: 9 Nov 2020 → 12 Nov 2020

Conference

Conference	21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020
Country/Territory	Denmark
City	Aalborg
Period	09/11/2020 → 12/11/2020

Series	IEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN	1093-5142

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Keywords

3-phase 4-wire
7-leg
control
dual-4-leg
modulation
power quality
switching rating analysis
topology
unified power quality conditioner (UPQC)

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10.1109/COMPEL49091.2020.9265791

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Cite this

@inproceedings{81c75bc3e2eb41d0ba63ef4e12c47817,

title = "A Novel 7-Leg Topology for 3-Phase 4-Wire Unified Power Quality Conditioner",

abstract = "It is necessary to improve the power quality for the normal operation of the loads as well as the power system, where the unified power quality conditioner (UPQC) is considered as an effective solution. In this paper, considering the degree of freedom (DOF), a novel 7-leg UPQC is proposed for the 3-phase 4-wire power system, which is simplified from the dual-4-leg UPQC with complete compensation functions; then, modeling, power rating, control, and modulation of the 7-leg UPQC are analyzed and compared with the dual-4-leg UPQC, indicating that the 7-leg UPQC is capable of compensating balanced/unbalanced voltage sag (including zero-sequence voltage), unbalanced current (includingzero-sequence current), reactive current, and harmonic current as the dual-4-leg UPQC using the same control strategy, while the cost of the 7-leg UPQC is lower. The feasibility of the 7-leg UPQC isverified by simulations.",

keywords = "3-phase 4-wire, 7-leg, control, dual-4-leg, modulation, power quality, switching rating analysis, topology, unified power quality conditioner (UPQC)",

author = "Houkai Zhang and Guochun Xiao and Zhaolin Lu and Yuechen Rui and Xianghao Cao and Fangzhou Zhao",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 ; Conference date: 09-11-2020 Through 12-11-2020",

year = "2020",

month = nov,

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doi = "10.1109/COMPEL49091.2020.9265791",

language = "English",

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}

Zhang, H, Xiao, G, Lu, Z, Rui, Y, Cao, X & Zhao, F 2020, A Novel 7-Leg Topology for 3-Phase 4-Wire Unified Power Quality Conditioner. in 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020., 9265791, IEEE (Institute of Electrical and Electronics Engineers), IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) , 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020, Aalborg, Denmark, 09/11/2020. https://doi.org/10.1109/COMPEL49091.2020.9265791

A Novel 7-Leg Topology for 3-Phase 4-Wire Unified Power Quality Conditioner. / Zhang, Houkai; Xiao, Guochun; Lu, Zhaolin et al.
2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020. IEEE (Institute of Electrical and Electronics Engineers), 2020. 9265791 (IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) ).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - A Novel 7-Leg Topology for 3-Phase 4-Wire Unified Power Quality Conditioner

AU - Zhang, Houkai

AU - Xiao, Guochun

AU - Lu, Zhaolin

AU - Rui, Yuechen

AU - Cao, Xianghao

AU - Zhao, Fangzhou

PY - 2020/11/9

Y1 - 2020/11/9

N2 - It is necessary to improve the power quality for the normal operation of the loads as well as the power system, where the unified power quality conditioner (UPQC) is considered as an effective solution. In this paper, considering the degree of freedom (DOF), a novel 7-leg UPQC is proposed for the 3-phase 4-wire power system, which is simplified from the dual-4-leg UPQC with complete compensation functions; then, modeling, power rating, control, and modulation of the 7-leg UPQC are analyzed and compared with the dual-4-leg UPQC, indicating that the 7-leg UPQC is capable of compensating balanced/unbalanced voltage sag (including zero-sequence voltage), unbalanced current (includingzero-sequence current), reactive current, and harmonic current as the dual-4-leg UPQC using the same control strategy, while the cost of the 7-leg UPQC is lower. The feasibility of the 7-leg UPQC isverified by simulations.

AB - It is necessary to improve the power quality for the normal operation of the loads as well as the power system, where the unified power quality conditioner (UPQC) is considered as an effective solution. In this paper, considering the degree of freedom (DOF), a novel 7-leg UPQC is proposed for the 3-phase 4-wire power system, which is simplified from the dual-4-leg UPQC with complete compensation functions; then, modeling, power rating, control, and modulation of the 7-leg UPQC are analyzed and compared with the dual-4-leg UPQC, indicating that the 7-leg UPQC is capable of compensating balanced/unbalanced voltage sag (including zero-sequence voltage), unbalanced current (includingzero-sequence current), reactive current, and harmonic current as the dual-4-leg UPQC using the same control strategy, while the cost of the 7-leg UPQC is lower. The feasibility of the 7-leg UPQC isverified by simulations.

KW - 3-phase 4-wire

KW - 7-leg

KW - control

KW - dual-4-leg

KW - modulation

KW - power quality

KW - switching rating analysis

KW - topology

KW - unified power quality conditioner (UPQC)

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DO - 10.1109/COMPEL49091.2020.9265791

M3 - Article in proceeding

AN - SCOPUS:85098579009

SN - 978-1-7281-7161-6

T3 - IEEE Workshop on Control and Modeling for Power Electronics (COMPEL)

BT - 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020

PB - IEEE (Institute of Electrical and Electronics Engineers)

T2 - 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020

Y2 - 9 November 2020 through 12 November 2020

ER -

Zhang H, Xiao G, Lu Z, Rui Y, Cao X, Zhao F. A Novel 7-Leg Topology for 3-Phase 4-Wire Unified Power Quality Conditioner. In 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020. IEEE (Institute of Electrical and Electronics Engineers). 2020. 9265791. (IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) ). doi: 10.1109/COMPEL49091.2020.9265791

A Novel 7-Leg Topology for 3-Phase 4-Wire Unified Power Quality Conditioner

Abstract

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Bibliographical note

Keywords

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