Line Protection in Inverter Supplied Networks
New protection methods are required to protect a distribution system when supplied by current limited converters. In this paper, a method of converter control is proposed to limit the current by reducing the voltage in the faulted phase or phases while keeping the voltage of the healthy phases unalt...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
Institute of Electrical and Electronics Engineers ( IEEE )
2008
|
| Online Access: | http://hdl.handle.net/20.500.11937/16404 |
| _version_ | 1848749166922039296 |
|---|---|
| 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 | New protection methods are required to protect a distribution system when supplied by current limited converters. In this paper, a method of converter control is proposed to limit the current by reducing the voltage in the faulted phase or phases while keeping the voltage of the healthy phases unaltered. Unsymmetrical fault analysis is performed to calculate the sequence currents and voltages at the relay location, when system is supplied by a converter. Based on that converter control, distance relay performances have been evaluated in both grid-connected and islanded mode operations. Distance relay, combined with MHO and negative sequence impedance directional characteristics, is proposed as a protection scheme for the distribution system for different types of faults under the current limited environment. The results are validated through PSCAD/EMTDC simulation and MATLAB calculations. |
| first_indexed | 2025-11-14T07:16:37Z |
| format | Conference Paper |
| id | curtin-20.500.11937-16404 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:16:37Z |
| publishDate | 2008 |
| publisher | Institute of Electrical and Electronics Engineers ( IEEE ) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-164042017-02-28T01:26:06Z Line Protection in Inverter Supplied Networks Dewadasa, M. Ghosh, Arindam Ledwich, G. - New protection methods are required to protect a distribution system when supplied by current limited converters. In this paper, a method of converter control is proposed to limit the current by reducing the voltage in the faulted phase or phases while keeping the voltage of the healthy phases unaltered. Unsymmetrical fault analysis is performed to calculate the sequence currents and voltages at the relay location, when system is supplied by a converter. Based on that converter control, distance relay performances have been evaluated in both grid-connected and islanded mode operations. Distance relay, combined with MHO and negative sequence impedance directional characteristics, is proposed as a protection scheme for the distribution system for different types of faults under the current limited environment. The results are validated through PSCAD/EMTDC simulation and MATLAB calculations. 2008 Conference Paper http://hdl.handle.net/20.500.11937/16404 Institute of Electrical and Electronics Engineers ( IEEE ) restricted |
| spellingShingle | Dewadasa, M. Ghosh, Arindam Ledwich, G. Line Protection in Inverter Supplied Networks |
| title | Line Protection in Inverter Supplied Networks |
| title_full | Line Protection in Inverter Supplied Networks |
| title_fullStr | Line Protection in Inverter Supplied Networks |
| title_full_unstemmed | Line Protection in Inverter Supplied Networks |
| title_short | Line Protection in Inverter Supplied Networks |
| title_sort | line protection in inverter supplied networks |
| url | http://hdl.handle.net/20.500.11937/16404 |