A Flexible Power Electronics Configuration for Coupling Renewable Energy Sources

Electronics

Mattia Filippini¹  Marta Molinas³  Eneko Olea Oregi² 

[1] Department of Industrial Engineering, University of Padua, Via Gradenigo, 6/a, 35131 Padova, Italy;Ingeteam Power Technology S.A., Parque Tecnológico de Bizkaia, Zamudio (Bizcaya), 48170 Spain; E-Mail:;Department of Engineering Cybernetics, Norwegian University of Science and Technology, O.S. Bragstads plass 2, 7491 Trondheim, Norway; E-Mail:

关键词: neutral point clamped (NPC);    insulated gate bipolar transistor (IGBT);    H-bridge;    zero sequence blocking transformer (ZSBT);    voltage dip;    phasors;    balancing circuits;    maximum power point tracking (MPPT);   

DOI  :  10.3390/electronics4020283

来源: mdpi

【 摘 要 】

A combination of series, parallel and multilevel power electronics has been investigated as a potential interface for two different types of renewable energy sources and in order to reach higher power levels. Renewable energy sources are typically dispersed in a territory, and sources, like wind and solar, allow small to medium-scale generation of electricity. The configuration investigated in this article aims at adapting the coupling solution to the specific generation characteristics of the renewable energy source to make it fit the electrical network. The configuration consists of a combination of three-phase multilevel converters and single-phase inverters, which are designed to provide flexibility, high power quality and high efficiency. A detailed analysis and simulation is performed to identify the properties in conjunction with the electrical grid requirements and the potential challenges encountered during operation. An optimized operation example of wind generation combined with solar PV generation is presented to exemplify the flexibility and benefits of the proposed configuration.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland