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Control of Back-to-Back-Connected Neutral-Point-Clamped Converters in Wind Mill Applications
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| Author(s) |
POU Josep; ROBLES Eider; ZARAGOZA Jordi; IBANEZ Pedro; ARIAS Antoni; CEBALLOS Salvador |
| Abstract |
This paper analyzes back-to-back-connected neutral-point-clamped converters in wind turbine applications. A control strategy for the grid-connected converter is proposed that is able to operate under unfavorable voltage conditions. The positive-sequence voltage detector is able to provide an accurate position of the grid voltage vector so that the controller is always synchronized. The wind generator, which is a permanent magnet machine with an external rotor, operates properly throughout a voltage-dip process. The task of balancing voltages on the dc-link capacitors of the back-to-back connection is performed by the modulation strategies. Simulation and experimental results are provided. |
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| Filename: | 0830-epe2007-full-15342935.pdf |
| Filesize: | 753.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2008-01-11 by System |
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