Interfacing Renewable Energy Sources to the Utility Grid Using a Three-Level Inverter

  title={Interfacing Renewable Energy Sources to the Utility Grid Using a Three-Level Inverter},
  author={Salvador Alepuz and Sergio Busquets-Monge and Josep Bordonau and Javier Gago and David Gonz{\'a}lez and Josep Balcells},
  journal={IEEE Transactions on Industrial Electronics},
This paper presents a novel approach for the connection of renewable energy sources to the utility grid. Due to the increasing power capability of the available generation systems, a three-level three-phase neutral-point-clamped voltage-source inverter is selected as the heart of the interfacing system. A multivariable control law is used for the regulator because of the intrinsic multivariable structure of the system. A current source (playing the role of a generic renewable energy source) is… CONTINUE READING
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