Abstract
This article proposes three-phase configurations for wind energy conversion system applications. The proposed topologies are based on Vienna rectifiers and they have a reduced number of controlled switches, which may allow reducing size and costs. Despite they can work with other arrangements, the proposed structures operate at an open-end winding configuration in this article, providing some benefits over the traditional ones. Compared to the conventional topology, the proposed ones provide a better power quality employing, proportionally, a fewer number of controlled switches, offering a higher levels-per-switch ratio. Moreover, they can also operate at a lower switch blocking voltage. These features offer an interesting cost–benefit and make them attractive options to industry applications. The system model, modulation technique, and control strategy are discussed. Simulation and experimental results are provided in order to validate their performance and feasibility.
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