Stability evaluation of a DC micro-grid and future interconnection to an AC system
This paper presents the stability analysis of a DC micro-grid fed by renewable sources and the future interconnection with an AC micro-grid. This interconnection is realized through a voltage source converter, and the operation of the micro-grid is in island mode. The stability is analyzed by the Ny...
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| Format: | Article |
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Elsevier
2014
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| Online Access: | https://eprints.nottingham.ac.uk/44128/ |
| _version_ | 1848796845022642176 |
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| author | Sanchez, Santiago Molinas, Marta Degano, Marco Zanchetta, Pericle |
| author_facet | Sanchez, Santiago Molinas, Marta Degano, Marco Zanchetta, Pericle |
| author_sort | Sanchez, Santiago |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper presents the stability analysis of a DC micro-grid fed by renewable sources and the future interconnection with an AC micro-grid. This interconnection is realized through a voltage source converter, and the operation of the micro-grid is in island mode. The stability is analyzed by the Nyquist criteria with the impedance relation method. The frequency response of the models was obtained by the injection of a perturbation current at the operation point. Where this perturbation was at the input of the converter used to export power from the DC grid. Other perturbation was applied at the node of the micro-grid to evaluate its impedance. Finally the simulations show the impedance representation of the systems, and the stability for the interconnection of them. The experimental verification shows the impedance of the converter with the same tendency as the representation obtained by the analytical and simulation. |
| first_indexed | 2025-11-14T19:54:27Z |
| format | Article |
| id | nottingham-44128 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:54:27Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-441282020-05-04T20:15:35Z https://eprints.nottingham.ac.uk/44128/ Stability evaluation of a DC micro-grid and future interconnection to an AC system Sanchez, Santiago Molinas, Marta Degano, Marco Zanchetta, Pericle This paper presents the stability analysis of a DC micro-grid fed by renewable sources and the future interconnection with an AC micro-grid. This interconnection is realized through a voltage source converter, and the operation of the micro-grid is in island mode. The stability is analyzed by the Nyquist criteria with the impedance relation method. The frequency response of the models was obtained by the injection of a perturbation current at the operation point. Where this perturbation was at the input of the converter used to export power from the DC grid. Other perturbation was applied at the node of the micro-grid to evaluate its impedance. Finally the simulations show the impedance representation of the systems, and the stability for the interconnection of them. The experimental verification shows the impedance of the converter with the same tendency as the representation obtained by the analytical and simulation. Elsevier 2014-02 Article PeerReviewed Sanchez, Santiago, Molinas, Marta, Degano, Marco and Zanchetta, Pericle (2014) Stability evaluation of a DC micro-grid and future interconnection to an AC system. Renewable Energy, 62 . pp. 649-656. ISSN 1879-0682 Microgrids; Renewable energy; Stability; Droop control; Smart grids http://www.sciencedirect.com/science/article/pii/S096014811300428X doi:10.1016/j.renene.2013.08.026 doi:10.1016/j.renene.2013.08.026 |
| spellingShingle | Microgrids; Renewable energy; Stability; Droop control; Smart grids Sanchez, Santiago Molinas, Marta Degano, Marco Zanchetta, Pericle Stability evaluation of a DC micro-grid and future interconnection to an AC system |
| title | Stability evaluation of a DC micro-grid and future interconnection to an AC system |
| title_full | Stability evaluation of a DC micro-grid and future interconnection to an AC system |
| title_fullStr | Stability evaluation of a DC micro-grid and future interconnection to an AC system |
| title_full_unstemmed | Stability evaluation of a DC micro-grid and future interconnection to an AC system |
| title_short | Stability evaluation of a DC micro-grid and future interconnection to an AC system |
| title_sort | stability evaluation of a dc micro-grid and future interconnection to an ac system |
| topic | Microgrids; Renewable energy; Stability; Droop control; Smart grids |
| url | https://eprints.nottingham.ac.uk/44128/ https://eprints.nottingham.ac.uk/44128/ https://eprints.nottingham.ac.uk/44128/ |