| |
Design Considerations for Medium-Frequency Power Transformers in Offshore Wind Farms
| [View]
[Download]
|
| Author(s) |
Stephan MEIER, Tommy KJELLQVIST, Staffan NORRGA, Hans-Peter NEE |
| Abstract |
In a recently proposed converter system for offshore wind farms, single-phase medium-frequency transformers replace the conventional three-phase line-frequency transformers that convert the electricity from the wind turbine generators to high voltage. Medium-frequency operation allows a reduction of the transformer size and weight, thus leading to a compact and efficient design, which minimizes the installation and maintenance costs. This paper presents design considerations for dry-type single-phase medium-frequency power transformers in offshore wind farms. Recent transformer problems in large wind turbines have shown that a thorough and careful magnetic, electric, and thermal design is required to ensure the reliability and performance of the transformers. As a result, a suitable design for a 3 MW wind turbine transformer is proposed. |
| Download |
| Filename: | 0143-epe2009-full-15253084.pdf |
| Filesize: | 312.5 KB |
|
| Type |
Members Only |
| Date |
Last modified 2010-01-27 by System |
| |
 |