System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections

Waqas Javed, Dong Chen, Mohamed Emad Farrag, Yan Xu

Research output: Contribution to journalArticle

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Abstract

Low voltage direct current (LVDC) distribution has gained the significant interest of
research due to the advancements in power conversion technologies. However, the use of
converters has given rise to several technical issues regarding their protections and controls of such
devices under faulty conditions. Post-fault behaviour of converter-fed LVDC system involves both
active converter control and passive circuit transient of similar time scale, which makes the
protection for LVDC distribution significantly different and more challenging than low voltage AC.
These protection and operational issues have handicapped the practical applications of DC
distribution. This paper presents state-of-the-art protection schemes developed for DC Microgrids.
With a close look at practical limitations such as the dependency on modelling accuracy,
requirement on communications and so forth, a comprehensive evaluation is carried out on those
system approaches in terms of system configurations, fault detection, location, isolation and
restoration.
Original languageEnglish
Number of pages32
JournalEnergies
Volume12
Issue number6
DOIs
Publication statusPublished - 14 Mar 2019

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Microgrid
Low Voltage
Fault Detection
Restoration
Fault detection
Isolation
Configuration
Electric potential
Converter
Passive networks
Comprehensive Evaluation
Time Scales
Fault
Review
Communication
Requirements
Modeling

Keywords

  • low voltage direct currrent
  • power conversion technologies

Cite this

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abstract = "Low voltage direct current (LVDC) distribution has gained the significant interest ofresearch due to the advancements in power conversion technologies. However, the use ofconverters has given rise to several technical issues regarding their protections and controls of suchdevices under faulty conditions. Post-fault behaviour of converter-fed LVDC system involves bothactive converter control and passive circuit transient of similar time scale, which makes theprotection for LVDC distribution significantly different and more challenging than low voltage AC.These protection and operational issues have handicapped the practical applications of DCdistribution. This paper presents state-of-the-art protection schemes developed for DC Microgrids.With a close look at practical limitations such as the dependency on modelling accuracy,requirement on communications and so forth, a comprehensive evaluation is carried out on thosesystem approaches in terms of system configurations, fault detection, location, isolation andrestoration.",
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System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections. / Javed, Waqas; Chen, Dong; Farrag, Mohamed Emad; Xu, Yan.

In: Energies, Vol. 12, No. 6, 14.03.2019.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Javed, Waqas

AU - Chen, Dong

AU - Farrag, Mohamed Emad

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N1 - Acceptance from webpage OA

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