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.
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 language | English |
|---|---|
| Article number | 1001 |
| Number of pages | 30 |
| Journal | Energies |
| Volume | 12 |
| Issue number | 6 |
| Early online date | 14 Mar 2019 |
| DOIs | |
| Publication status | Published - Mar 2019 |
Keywords
- low voltage direct currrent
- power conversion technologies
- DC Microgrids
- circuit breakers
- DC faults
- DC protection
ASJC Scopus subject areas
- Control and Optimization
- Energy (miscellaneous)
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
- Renewable Energy, Sustainability and the Environment
Documents and Links
- Javed, W. et al (2019) System Configuration, Fault Detection, Location, Isolation and Restoration: A Review on LVDC Microgrid Protections
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). © The Authors.
