Bibliographic Details
| Title: |
Control-Based Two-Layer Protection for Short-Circuit Fault at an LVDC Feeder Branch |
| Authors: |
Jiajun Yang, Sebastian Brueske, Giampaolo Buticchi, Chunyang Gu, Sandro Guenter, Pat Wheeler |
| Source: |
Energies, Vol 15, Iss 11, p 4054 (2022) |
| Publisher Information: |
MDPI AG, 2022. |
| Publication Year: |
2022 |
| Collection: |
LCC:Technology |
| Subject Terms: |
LVDC protection, power converters, current limiting, impedance model, stability analysis, Technology |
| More Details: |
Low-voltage dc distribution offers high efficiency for grid integration of dc-based technologies such as photovoltaic and battery storage systems and new loads such as charging stations for electric vehicles due to reduced number of conversion stages. However, the selection of protection devices, protection coordination and selectivity is still subject to research. This work proposes to use a two-layer protection technique utilizing the control capability of power converters in case of a short-circuit fault at branch level of a low voltage dc feeder. The first layer is limiting the bus current using a virtual resistance in the droop control to avoid tripping of the grid-forming converter. The second layer implements a soft fuse tripping technique for selectivity. The control concept is presented and the system stability is analyzed using impedance-based stability analysis. Experimental results on a hardware-in-the-loop setup verify the findings. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
1996-1073 |
| Relation: |
https://www.mdpi.com/1996-1073/15/11/4054; https://doaj.org/toc/1996-1073 |
| DOI: |
10.3390/en15114054 |
| Access URL: |
https://doaj.org/article/d14d30ebb7d543e0ad8b8fc11f59c351 |
| Accession Number: |
edsdoj.14d30ebb7d543e0ad8b8fc11f59c351 |
| Database: |
Directory of Open Access Journals |
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