Protection of microgrids using differential relays
A microgrid provides economical and reliable power to customers by integrating distributed resources more effectively. Islanded operation enables a continuous power supply for loads during a major grid disturbance. Reliability of a microgrid can be further increased by forming a mesh configuration....
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
Institute of Electrical and Electronics Engineers ( IEEE )
2011
|
| Online Access: | http://hdl.handle.net/20.500.11937/24814 |
| _version_ | 1848751532896419840 |
|---|---|
| author | Dewadasa, M. Ghosh, Arindam Ledwich, G. |
| author2 | - |
| author_facet | - Dewadasa, M. Ghosh, Arindam Ledwich, G. |
| author_sort | Dewadasa, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A microgrid provides economical and reliable power to customers by integrating distributed resources more effectively. Islanded operation enables a continuous power supply for loads during a major grid disturbance. Reliability of a microgrid can be further increased by forming a mesh configuration. However, the protection of mesh microgrids is a challenging task. In this paper, protection schemes are discussed using current differential protection of a microgrid. The protection challenges associated with bi-directional power flow, meshed configuration, changing fault current level due to intermittent nature of DGs and reduced fault current level in an islanded mode are considered in proposing the protection solutions. Relay setting criterion and current transformer (CT) selection guidelines are also discussed. The results are verified using MATLAB calculations and PSCAD simulations. |
| first_indexed | 2025-11-14T07:54:14Z |
| format | Conference Paper |
| id | curtin-20.500.11937-24814 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:54:14Z |
| publishDate | 2011 |
| publisher | Institute of Electrical and Electronics Engineers ( IEEE ) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-248142017-02-28T01:39:16Z Protection of microgrids using differential relays Dewadasa, M. Ghosh, Arindam Ledwich, G. - A microgrid provides economical and reliable power to customers by integrating distributed resources more effectively. Islanded operation enables a continuous power supply for loads during a major grid disturbance. Reliability of a microgrid can be further increased by forming a mesh configuration. However, the protection of mesh microgrids is a challenging task. In this paper, protection schemes are discussed using current differential protection of a microgrid. The protection challenges associated with bi-directional power flow, meshed configuration, changing fault current level due to intermittent nature of DGs and reduced fault current level in an islanded mode are considered in proposing the protection solutions. Relay setting criterion and current transformer (CT) selection guidelines are also discussed. The results are verified using MATLAB calculations and PSCAD simulations. 2011 Conference Paper http://hdl.handle.net/20.500.11937/24814 Institute of Electrical and Electronics Engineers ( IEEE ) restricted |
| spellingShingle | Dewadasa, M. Ghosh, Arindam Ledwich, G. Protection of microgrids using differential relays |
| title | Protection of microgrids using differential relays |
| title_full | Protection of microgrids using differential relays |
| title_fullStr | Protection of microgrids using differential relays |
| title_full_unstemmed | Protection of microgrids using differential relays |
| title_short | Protection of microgrids using differential relays |
| title_sort | protection of microgrids using differential relays |
| url | http://hdl.handle.net/20.500.11937/24814 |