Impact of controlling zero sequence current in a three-phase four-wire LV network with PV units

Fida Hasan Md Rafi; M. J. Hossain; Md Shamiur Rahman; J. Lu

doi:10.1109/PESGM.2016.7741597

Impact of controlling zero sequence current in a three-phase four-wire LV network with PV units

Fida Hasan Md Rafi, M. J. Hossain, Md Shamiur Rahman, J. Lu

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

8 Citations (Scopus)

Abstract

The dynamic impacts of controlling zero sequence current in a three-phase four-wire low voltage (LV) distribution network with a four-leg voltage source inverter (VSI) and PV installations are investigated in this paper. The PV VSI is designed to control active power at unity power factor (p.f) with additional neutral and zero sequence current controls. Inherently, most of the three-phase four-wire LV distribution networks exhibit voltage unbalance characteristics due to the connection of single- and three-phase nonlinear loads as well as occurrence of asymmetrical faults in the networks. The control over zero sequence current can improve the inherent voltage unbalance in the LV networks. The transient characteristics of the unbalanced network are investigated utilizing a widely used software environment, PSCAD/EMTDC, for the Energex 11 kV/420 V distribution network in Brisbane, Australia. The performance of the designed four-leg VSI is compared with the traditional three-leg VSI experiencing different asymmetrical faults. The results show that, with the additional degree of freedom from the four-leg VSI, faster fault recovery and lower MVA requirement can be achieved for unbalanced LV networks.

Original language	English
Title of host publication	PESGM 2016 : IEEE Power and Energy Society General Meeting : proceedings
Place of Publication	Boston
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-5
Number of pages	5
Volume	2016-November
ISBN (Electronic)	9781509041688
DOIs	https://doi.org/10.1109/PESGM.2016.7741597
Publication status	Published - 10 Nov 2016
Externally published	Yes
Event	2016 IEEE Power and Energy Society General Meeting, PESGM 2016 - Boston, United States Duration: 17 Jul 2016 → 21 Jul 2016

Other

Other	2016 IEEE Power and Energy Society General Meeting, PESGM 2016
Country/Territory	United States
City	Boston
Period	17/07/16 → 21/07/16

Keywords

Four-leg inverter
Neutral current
Three-phase four-wire LV network
Voltage unbalance
Zero sequence component

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10.1109/PESGM.2016.7741597

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Md Rafi, F. H., Hossain, M. J., Rahman, M. S., & Lu, J. (2016). Impact of controlling zero sequence current in a three-phase four-wire LV network with PV units. In PESGM 2016 : IEEE Power and Energy Society General Meeting : proceedings (Vol. 2016-November, pp. 1-5). [7741597] Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/PESGM.2016.7741597

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title = "Impact of controlling zero sequence current in a three-phase four-wire LV network with PV units",

abstract = "The dynamic impacts of controlling zero sequence current in a three-phase four-wire low voltage (LV) distribution network with a four-leg voltage source inverter (VSI) and PV installations are investigated in this paper. The PV VSI is designed to control active power at unity power factor (p.f) with additional neutral and zero sequence current controls. Inherently, most of the three-phase four-wire LV distribution networks exhibit voltage unbalance characteristics due to the connection of single- and three-phase nonlinear loads as well as occurrence of asymmetrical faults in the networks. The control over zero sequence current can improve the inherent voltage unbalance in the LV networks. The transient characteristics of the unbalanced network are investigated utilizing a widely used software environment, PSCAD/EMTDC, for the Energex 11 kV/420 V distribution network in Brisbane, Australia. The performance of the designed four-leg VSI is compared with the traditional three-leg VSI experiencing different asymmetrical faults. The results show that, with the additional degree of freedom from the four-leg VSI, faster fault recovery and lower MVA requirement can be achieved for unbalanced LV networks.",

keywords = "Four-leg inverter, Neutral current, Three-phase four-wire LV network, Voltage unbalance, Zero sequence component",

author = "{Md Rafi}, {Fida Hasan} and Hossain, {M. J.} and Rahman, {Md Shamiur} and J. Lu",

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Md Rafi, FH, Hossain, MJ, Rahman, MS & Lu, J 2016, Impact of controlling zero sequence current in a three-phase four-wire LV network with PV units. in PESGM 2016 : IEEE Power and Energy Society General Meeting : proceedings. vol. 2016-November, 7741597, Institute of Electrical and Electronics Engineers (IEEE), Boston, pp. 1-5, 2016 IEEE Power and Energy Society General Meeting, PESGM 2016, Boston, United States, 17/07/16. https://doi.org/10.1109/PESGM.2016.7741597

Impact of controlling zero sequence current in a three-phase four-wire LV network with PV units. / Md Rafi, Fida Hasan; Hossain, M. J.; Rahman, Md Shamiur et al.

PESGM 2016 : IEEE Power and Energy Society General Meeting : proceedings. Vol. 2016-November Boston : Institute of Electrical and Electronics Engineers (IEEE), 2016. p. 1-5 7741597.

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

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N2 - The dynamic impacts of controlling zero sequence current in a three-phase four-wire low voltage (LV) distribution network with a four-leg voltage source inverter (VSI) and PV installations are investigated in this paper. The PV VSI is designed to control active power at unity power factor (p.f) with additional neutral and zero sequence current controls. Inherently, most of the three-phase four-wire LV distribution networks exhibit voltage unbalance characteristics due to the connection of single- and three-phase nonlinear loads as well as occurrence of asymmetrical faults in the networks. The control over zero sequence current can improve the inherent voltage unbalance in the LV networks. The transient characteristics of the unbalanced network are investigated utilizing a widely used software environment, PSCAD/EMTDC, for the Energex 11 kV/420 V distribution network in Brisbane, Australia. The performance of the designed four-leg VSI is compared with the traditional three-leg VSI experiencing different asymmetrical faults. The results show that, with the additional degree of freedom from the four-leg VSI, faster fault recovery and lower MVA requirement can be achieved for unbalanced LV networks.

AB - The dynamic impacts of controlling zero sequence current in a three-phase four-wire low voltage (LV) distribution network with a four-leg voltage source inverter (VSI) and PV installations are investigated in this paper. The PV VSI is designed to control active power at unity power factor (p.f) with additional neutral and zero sequence current controls. Inherently, most of the three-phase four-wire LV distribution networks exhibit voltage unbalance characteristics due to the connection of single- and three-phase nonlinear loads as well as occurrence of asymmetrical faults in the networks. The control over zero sequence current can improve the inherent voltage unbalance in the LV networks. The transient characteristics of the unbalanced network are investigated utilizing a widely used software environment, PSCAD/EMTDC, for the Energex 11 kV/420 V distribution network in Brisbane, Australia. The performance of the designed four-leg VSI is compared with the traditional three-leg VSI experiencing different asymmetrical faults. The results show that, with the additional degree of freedom from the four-leg VSI, faster fault recovery and lower MVA requirement can be achieved for unbalanced LV networks.

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BT - PESGM 2016 : IEEE Power and Energy Society General Meeting : proceedings

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Boston

T2 - 2016 IEEE Power and Energy Society General Meeting, PESGM 2016

Y2 - 17 July 2016 through 21 July 2016

ER -

Impact of controlling zero sequence current in a three-phase four-wire LV network with PV units

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