A protection method for DC distribution network based on high and low frequency current amplitude ratio

Juan Li; Chenqing Wang; Yang Li; Guobing Song; Lei Gao

doi:10.1109/EI250167.2020.9346588

A protection method for DC distribution network based on high and low frequency current amplitude ratio

Juan Li
, Chenqing Wang
, Yang Li
, Guobing Song
, Lei Gao

School of Electrical Engineering

State Grid Corporation of China
Xi'an Jiaotong University

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

Abstract

DC distribution network is becoming the trend of development in the future because of convenience for renewable energy accessing and better power quality compared with traditional ac distribution network. Protection is crucial for dc distribution network to operate safely but it is still at the beginning of research. A protection method applied to dc distribution network is proposed in this paper based on ratio of high and low frequency current amplitude. Firstly, topology of dc distribution network and protection object is introduced. Then fault characteristics under internal fault and external fault are analyzed in theory. Because of the hindrance properties of boundary units to high frequency components, the ratio of high and low frequency current amplitude under internal fault is much higher than which under external fault. The difference is more obvious with the gap of high and low frequency increasing. Protection criterion is proposed based on this difference. Simulation results in PSCAD/EMTDC software verify the effectiveness of this protection method.

Original language	English
Title of host publication	2020 IEEE 4th Conference on Energy Internet and Energy System Integration
Subtitle of host publication	Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1817-1821
Number of pages	5
ISBN (Electronic)	9781728196060
DOIs	https://doi.org/10.1109/EI250167.2020.9346588
State	Published - 30 Oct 2020
Event	4th IEEE Conference on Energy Internet and Energy System Integration, EI2 2020 - Wuhan, China Duration: 30 Oct 2020 → 1 Nov 2020

Publication series

Name	2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020

Conference

Conference	4th IEEE Conference on Energy Internet and Energy System Integration, EI2 2020
Country/Territory	China
City	Wuhan
Period	30/10/20 → 1/11/20

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Boundary unit
Dc distribution network
Fault identification
Frequency component
Protection method

Access to Document

10.1109/EI250167.2020.9346588

Cite this

Li, J., Wang, C., Li, Y., Song, G., & Gao, L. (2020). A protection method for DC distribution network based on high and low frequency current amplitude ratio. In 2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020 (pp. 1817-1821). Article 9346588 (2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EI250167.2020.9346588

Li, Juan ; Wang, Chenqing ; Li, Yang et al. / A protection method for DC distribution network based on high and low frequency current amplitude ratio. 2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 1817-1821 (2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020).

@inproceedings{6a024a0ab6f24bf1a8051ad21bb9db37,

title = "A protection method for DC distribution network based on high and low frequency current amplitude ratio",

abstract = "DC distribution network is becoming the trend of development in the future because of convenience for renewable energy accessing and better power quality compared with traditional ac distribution network. Protection is crucial for dc distribution network to operate safely but it is still at the beginning of research. A protection method applied to dc distribution network is proposed in this paper based on ratio of high and low frequency current amplitude. Firstly, topology of dc distribution network and protection object is introduced. Then fault characteristics under internal fault and external fault are analyzed in theory. Because of the hindrance properties of boundary units to high frequency components, the ratio of high and low frequency current amplitude under internal fault is much higher than which under external fault. The difference is more obvious with the gap of high and low frequency increasing. Protection criterion is proposed based on this difference. Simulation results in PSCAD/EMTDC software verify the effectiveness of this protection method.",

keywords = "Boundary unit, Dc distribution network, Fault identification, Frequency component, Protection method",

author = "Juan Li and Chenqing Wang and Yang Li and Guobing Song and Lei Gao",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 4th IEEE Conference on Energy Internet and Energy System Integration, EI2 2020 ; Conference date: 30-10-2020 Through 01-11-2020",

year = "2020",

month = oct,

day = "30",

doi = "10.1109/EI250167.2020.9346588",

language = "英语",

series = "2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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booktitle = "2020 IEEE 4th Conference on Energy Internet and Energy System Integration",

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Li, J, Wang, C, Li, Y, Song, G & Gao, L 2020, A protection method for DC distribution network based on high and low frequency current amplitude ratio. in 2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020., 9346588, 2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020, Institute of Electrical and Electronics Engineers Inc., pp. 1817-1821, 4th IEEE Conference on Energy Internet and Energy System Integration, EI2 2020, Wuhan, China, 30/10/20. https://doi.org/10.1109/EI250167.2020.9346588

A protection method for DC distribution network based on high and low frequency current amplitude ratio. / Li, Juan; Wang, Chenqing; Li, Yang et al.
2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 1817-1821 9346588 (2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020).

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

TY - GEN

T1 - A protection method for DC distribution network based on high and low frequency current amplitude ratio

AU - Li, Juan

AU - Wang, Chenqing

AU - Li, Yang

AU - Song, Guobing

AU - Gao, Lei

PY - 2020/10/30

Y1 - 2020/10/30

N2 - DC distribution network is becoming the trend of development in the future because of convenience for renewable energy accessing and better power quality compared with traditional ac distribution network. Protection is crucial for dc distribution network to operate safely but it is still at the beginning of research. A protection method applied to dc distribution network is proposed in this paper based on ratio of high and low frequency current amplitude. Firstly, topology of dc distribution network and protection object is introduced. Then fault characteristics under internal fault and external fault are analyzed in theory. Because of the hindrance properties of boundary units to high frequency components, the ratio of high and low frequency current amplitude under internal fault is much higher than which under external fault. The difference is more obvious with the gap of high and low frequency increasing. Protection criterion is proposed based on this difference. Simulation results in PSCAD/EMTDC software verify the effectiveness of this protection method.

AB - DC distribution network is becoming the trend of development in the future because of convenience for renewable energy accessing and better power quality compared with traditional ac distribution network. Protection is crucial for dc distribution network to operate safely but it is still at the beginning of research. A protection method applied to dc distribution network is proposed in this paper based on ratio of high and low frequency current amplitude. Firstly, topology of dc distribution network and protection object is introduced. Then fault characteristics under internal fault and external fault are analyzed in theory. Because of the hindrance properties of boundary units to high frequency components, the ratio of high and low frequency current amplitude under internal fault is much higher than which under external fault. The difference is more obvious with the gap of high and low frequency increasing. Protection criterion is proposed based on this difference. Simulation results in PSCAD/EMTDC software verify the effectiveness of this protection method.

KW - Boundary unit

KW - Dc distribution network

KW - Fault identification

KW - Frequency component

KW - Protection method

UR - https://www.scopus.com/pages/publications/85101645843

U2 - 10.1109/EI250167.2020.9346588

DO - 10.1109/EI250167.2020.9346588

M3 - 会议稿件

AN - SCOPUS:85101645843

T3 - 2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020

SP - 1817

EP - 1821

BT - 2020 IEEE 4th Conference on Energy Internet and Energy System Integration

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 4th IEEE Conference on Energy Internet and Energy System Integration, EI2 2020

Y2 - 30 October 2020 through 1 November 2020

ER -

Li J, Wang C, Li Y, Song G, Gao L. A protection method for DC distribution network based on high and low frequency current amplitude ratio. In 2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 1817-1821. 9346588. (2020 IEEE 4th Conference on Energy Internet and Energy System Integration: Connecting the Grids Towards a Low-Carbon High-Efficiency Energy System, EI2 2020). doi: 10.1109/EI250167.2020.9346588

A protection method for DC distribution network based on high and low frequency current amplitude ratio

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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