Controller interaction in parallel connected high frequency grid converters
Recent progress in power electronic converters has increased the number of distributed energy sources to the grid. These converters act as a source of harmonics which connected with other loads affect the stability of power grid. Parallel operation of converters is common in power grid depends on th...
| Main Authors: | , |
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| Format: | Conference Paper |
| Published: |
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/50588 |
| _version_ | 1848758502486441984 |
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| author | John, B. Ghosh, Arindam |
| author_facet | John, B. Ghosh, Arindam |
| author_sort | John, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Recent progress in power electronic converters has increased the number of distributed energy sources to the grid. These converters act as a source of harmonics which connected with other loads affect the stability of power grid. Parallel operation of converters is common in power grid depends on the power sharing needs and current rating of power semiconductor devices. Though, these connections improves power handling capability of grid, the dynamic interaction between converters can affect stability of system. This paper addresses the stability issues in parallel connected, high frequency voltage controlled converters with an output LC filter. Studies on interactions between control loops verifies that, harmonic instability introduced by parallel converters can't be stabilized by traditional PI controllers in real power control loop. A new damping algorithm is introduced to suppress these harmonic oscillations caused by the interaction of controllers in grid connected converters. |
| first_indexed | 2025-11-14T09:45:00Z |
| format | Conference Paper |
| id | curtin-20.500.11937-50588 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:45:00Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-505882017-09-13T15:40:43Z Controller interaction in parallel connected high frequency grid converters John, B. Ghosh, Arindam Recent progress in power electronic converters has increased the number of distributed energy sources to the grid. These converters act as a source of harmonics which connected with other loads affect the stability of power grid. Parallel operation of converters is common in power grid depends on the power sharing needs and current rating of power semiconductor devices. Though, these connections improves power handling capability of grid, the dynamic interaction between converters can affect stability of system. This paper addresses the stability issues in parallel connected, high frequency voltage controlled converters with an output LC filter. Studies on interactions between control loops verifies that, harmonic instability introduced by parallel converters can't be stabilized by traditional PI controllers in real power control loop. A new damping algorithm is introduced to suppress these harmonic oscillations caused by the interaction of controllers in grid connected converters. 2016 Conference Paper http://hdl.handle.net/20.500.11937/50588 10.1109/AUPEC.2016.7749316 fulltext |
| spellingShingle | John, B. Ghosh, Arindam Controller interaction in parallel connected high frequency grid converters |
| title | Controller interaction in parallel connected high frequency grid converters |
| title_full | Controller interaction in parallel connected high frequency grid converters |
| title_fullStr | Controller interaction in parallel connected high frequency grid converters |
| title_full_unstemmed | Controller interaction in parallel connected high frequency grid converters |
| title_short | Controller interaction in parallel connected high frequency grid converters |
| title_sort | controller interaction in parallel connected high frequency grid converters |
| url | http://hdl.handle.net/20.500.11937/50588 |