Fault ride-through capability enhancement of doubly-fed induction wind generators
Recent fault ride-through (FRT) requirements have proven problematic for variable-speed wind generation systems. A particular problem regarding to doubly-fed induction generators (DFIGs) is that standard proportional integral (PI) current controllers, designed with very limited control bandwidth, ca...
| Main Authors: | , , |
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| Format: | Journal Article |
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The Institution of Engineering & Technology (IET)
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/4081 |
| _version_ | 1848744414896193536 |
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| author | Mohseni, Mansour Islam, Syed Masoum, Mohammad Sherkat |
| author_facet | Mohseni, Mansour Islam, Syed Masoum, Mohammad Sherkat |
| author_sort | Mohseni, Mansour |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Recent fault ride-through (FRT) requirements have proven problematic for variable-speed wind generation systems. A particular problem regarding to doubly-fed induction generators (DFIGs) is that standard proportional integral (PI) current controllers, designed with very limited control bandwidth, cannot eliminate rotor current oscillations that occur during a grid fault. As a consequence, the current in the rotor-side converter can exceed the safety limits of semiconductor switches, which potentially leads to converter failure. This study introduces a hybrid current controller to enhance the FRT capability of DFIGs through keeping the rotor current below the safety limits. The proposed current controller includes two switching strategies: the standard PI current controller for normal operating conditions and a vector-based hysteresis current controller (with very fast transient response) for overcurrent protection during grid faults. Simulation studies are carried out to demonstrate the effectiveness of the proposed hybrid current controller under various symmetrical and asymmetrical voltage sag conditions. |
| first_indexed | 2025-11-14T06:01:06Z |
| format | Journal Article |
| id | curtin-20.500.11937-4081 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:01:06Z |
| publishDate | 2011 |
| publisher | The Institution of Engineering & Technology (IET) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-40812017-09-13T14:31:37Z Fault ride-through capability enhancement of doubly-fed induction wind generators Mohseni, Mansour Islam, Syed Masoum, Mohammad Sherkat Recent fault ride-through (FRT) requirements have proven problematic for variable-speed wind generation systems. A particular problem regarding to doubly-fed induction generators (DFIGs) is that standard proportional integral (PI) current controllers, designed with very limited control bandwidth, cannot eliminate rotor current oscillations that occur during a grid fault. As a consequence, the current in the rotor-side converter can exceed the safety limits of semiconductor switches, which potentially leads to converter failure. This study introduces a hybrid current controller to enhance the FRT capability of DFIGs through keeping the rotor current below the safety limits. The proposed current controller includes two switching strategies: the standard PI current controller for normal operating conditions and a vector-based hysteresis current controller (with very fast transient response) for overcurrent protection during grid faults. Simulation studies are carried out to demonstrate the effectiveness of the proposed hybrid current controller under various symmetrical and asymmetrical voltage sag conditions. 2011 Journal Article http://hdl.handle.net/20.500.11937/4081 10.1049/iet-rpg.2010.0154 The Institution of Engineering & Technology (IET) restricted |
| spellingShingle | Mohseni, Mansour Islam, Syed Masoum, Mohammad Sherkat Fault ride-through capability enhancement of doubly-fed induction wind generators |
| title | Fault ride-through capability enhancement of doubly-fed induction wind generators |
| title_full | Fault ride-through capability enhancement of doubly-fed induction wind generators |
| title_fullStr | Fault ride-through capability enhancement of doubly-fed induction wind generators |
| title_full_unstemmed | Fault ride-through capability enhancement of doubly-fed induction wind generators |
| title_short | Fault ride-through capability enhancement of doubly-fed induction wind generators |
| title_sort | fault ride-through capability enhancement of doubly-fed induction wind generators |
| url | http://hdl.handle.net/20.500.11937/4081 |