Protection coordination of voltage weak DC distribution grid: Concepts

Tsegay Hailu; Laurens Mackay; Mladen Gajic; J.A. Ferreira

doi:10.1109/SPEC.2016.7846166

Protection coordination of voltage weak DC distribution grid: Concepts

Tsegay Hailu, Laurens Mackay, Mladen Gajic, J.A. Ferreira

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

4 Citations (Scopus)

Abstract

Distributed Generation has created the need for new types of smart dc grids developments. The multiple generation sources, bi-directional power flow, power flow time co-ordination and management bring significant benefits as well as challenges for current ac electrical grids and emerging dc microgrids. In particular, the effect of voltage weak distribution systems on protection concepts and approaches needs to be understood, investigated, and accounted for. This paper describes principles of protection of voltage weak dc grid concepts. New alternative protection designs are proposed and their benefits and challenges are discussed. Likewise, special circuit configurations are proposed to improve fault discrimination. Fault-induced voltage transients are used to detect and isolate faulty part of the dc distribution grid.

Original language	English
Title of host publication	2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	1-5
Number of pages	5
ISBN (Electronic)	978-1-5090-1546-7
DOIs	https://doi.org/10.1109/SPEC.2016.7846166
Publication status	Published - Dec 2016
Event	IEEE SPEC 2016: 2nd Annual Southern Power Electronics Conference - Auckland, New Zealand Duration: 5 Dec 2016 → 8 Dec 2016 Conference number: 2

Conference

Conference	IEEE SPEC 2016
Country/Territory	New Zealand
City	Auckland
Period	5/12/16 → 8/12/16

Keywords

Circuit breakers
Capacitors
Fault detection
Transient analysis
Electrical fault detection
Fault currents

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10.1109/SPEC.2016.7846166

Cite this

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title = "Protection coordination of voltage weak DC distribution grid: Concepts",

abstract = "Distributed Generation has created the need for new types of smart dc grids developments. The multiple generation sources, bi-directional power flow, power flow time co-ordination and management bring significant benefits as well as challenges for current ac electrical grids and emerging dc microgrids. In particular, the effect of voltage weak distribution systems on protection concepts and approaches needs to be understood, investigated, and accounted for. This paper describes principles of protection of voltage weak dc grid concepts. New alternative protection designs are proposed and their benefits and challenges are discussed. Likewise, special circuit configurations are proposed to improve fault discrimination. Fault-induced voltage transients are used to detect and isolate faulty part of the dc distribution grid.",

keywords = "Circuit breakers, Capacitors, Fault detection, Transient analysis, Electrical fault detection, Fault currents",

author = "Tsegay Hailu and Laurens Mackay and Mladen Gajic and J.A. Ferreira",

year = "2016",

month = dec,

doi = "10.1109/SPEC.2016.7846166",

language = "English",

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booktitle = "2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016",

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note = "IEEE SPEC 2016 : 2nd Annual Southern Power Electronics Conference ; Conference date: 05-12-2016 Through 08-12-2016",

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AU - Mackay, Laurens

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AB - Distributed Generation has created the need for new types of smart dc grids developments. The multiple generation sources, bi-directional power flow, power flow time co-ordination and management bring significant benefits as well as challenges for current ac electrical grids and emerging dc microgrids. In particular, the effect of voltage weak distribution systems on protection concepts and approaches needs to be understood, investigated, and accounted for. This paper describes principles of protection of voltage weak dc grid concepts. New alternative protection designs are proposed and their benefits and challenges are discussed. Likewise, special circuit configurations are proposed to improve fault discrimination. Fault-induced voltage transients are used to detect and isolate faulty part of the dc distribution grid.

KW - Circuit breakers

KW - Capacitors

KW - Fault detection

KW - Transient analysis

KW - Electrical fault detection

KW - Fault currents

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M3 - Conference contribution

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Y2 - 5 December 2016 through 8 December 2016

ER -

Protection coordination of voltage weak DC distribution grid: Concepts

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