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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Moallem, A. Bakhshai, A. Jain, P. |
| Copyright Year | 2014 |
| Description | Author affiliation: Electr. & Comput. Eng. Dept., Queen's Univ., Kingston, ON, Canada (Moallem, A.; Bakhshai, A.; Jain, P.) |
| Abstract | This paper proposes a new technique for enhancement of energy extraction capabilities in wind energy conversion systems with low cut-in speed. The dc-link voltage is maintained by the grid-side converter in wind energy systems equipped with back-to-back three-phase inverters. This voltage is required to be higher than a certain value to ensure proper operation of the grid-side converter. On the other hand, at low generator voltages, switching times for the generator-side converter cannot be realized due to practical limitations. Accordingly, the system cannot harvest energy at low cut-in speeds. A power electronics system consisting of an isolated SEPIC converter along with an upper-hand control scheme has been introduced and employed to alleviate the aforementioned power extraction issue. The proposed solution, allows for excellent power extraction even at low cut-in speeds by maintaining an appropriate dc-link voltage at various operation conditions. Therefore increasing the overall renewable generation capability in wind-energy systems. The proposed solution can be incorporated in existing wind energy conversion systems with back-to-back three-phase inverters with slight hardware and software modifications. The integrated isolated SEPIC converter handles a fraction of the rated power, therefore leads to reduced cost and size compared to existing systems with integrated full-rated boost converters. |
| Sponsorship | IEEE Power Electron. Soc. |
| Starting Page | 1752 |
| Ending Page | 1756 |
| File Size | 922762 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781479923250 |
| DOI | 10.1109/APEC.2014.6803542 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-03-16 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Generators Inverters Voltage control Wind energy Hardware Modulation |
| Content Type | Text |
| Resource Type | Article |
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