Reduction of harmonics from MW-class wind turbines by interlaced active front-ends

Conference Paper (2007)
Author(s)

M Triggianese (TU Delft - Old - EWI Sect. Electrical Power Processing)

P Marino (External organisation)

J Morren (TU Delft - Electrical Power Processing)

SWH de Haan (TU Delft - Electrical Power Processing)

Research Group
Old - EWI Sect. Electrical Power Processing
DOI related publication
https://doi.org/doi:10.1109/ISIE.2007.4375019
More Info
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Publication Year
2007
Research Group
Old - EWI Sect. Electrical Power Processing
Pages (from-to)
2607-2612
ISBN (print)
1-4244-0755-9

Abstract

With the request of renewable energy also the size of the wind turbines is growing. The converters used to connect them to the grid have to transfer a big amount of captured power. Since they handle high power, the switching devices work with a low switching frequency. This results in a high harmonic distortion of the injected currents and the need of big passive filters on ac side. In order to improve the Power Quality of the transferred wind energy, an inverter system made up of interlaced Active front-ends is proposed. Its mathematical model is also developed in order to analyze harmonic distortion. It can be introduced in the existing models of wind turbines and grid. The numerical results prove the benefits of the proposed system.

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