Alisado de la energía intermitente proporcionada por las centrales de energía undimotriz utilizando ultracondensadores y un MMC con control vectorial de corriente no lineal
- Fernando Martínez-Rodrigo 1
- Santiago de Pablo 1
- Luis C. Herrero-de Lucas 1
- Dionisio Ramírez 2
- 1 Universidad de Valladolid. Dpto. Tecnología Electrónica. Valladolid. España
- 2 Universidad Politécnica de Madrid. Centro de Electrónica Industrial. Madrid. España
ISSN: 0012-7361, 0012-7361
Año de publicación: 2021
Volumen: 96
Número: 1
Páginas: 61-66
Tipo: Artículo
Otras publicaciones en: Revista DYNA
Resumen
This article focuses on smoothing the large power peaks that wave energy converters (WECs) inject into the electrical grid. The study is carried out for a single WEC where the generated power is delivered to the grid by means of a power converter. Two different measures have been considered to improve the power quality of the grid connection. Firstly, the electronic converter has been chosen a modular multilevel converter (MMC) to allow replacing the standard high voltage capacitors of the DC link by low voltage ultracapacitors distributed across the modules of the MMC. Secondly, the MMC is controlled using a non-linear vector current control. The results show that the power delivered to the grid becomes approximately constant when using ultracapacitors. Furthermore, the non-linear vector current source provides the grid connection converter with the necessary fast dynamic response to avoid large variations in the DC voltage.