A new Bi-Directional Charger for Vehicle-to-Grid Integration

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Date
2011
Authors
Ricardo Ferreira
João Peças Lopes
Luís Miguel Miranda
Rui Esteves Araujo
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Abstract
Bidirectional and efficient on-board charger systems for electric vehicles is a challenge nowadays. This paper describes a novel power converter system that implements bidirectional flow between the grid and an electric vehicle battery, where a dual active bridge is advantageous. With a bidirectional topology and proper control all the major grid constraints, such as power quality, harmonic rejection, active and reactive power control, and others, can be easily satisfied. A hardware prototype of the power converter is built. Experimental results from this hardware prototype verify the preliminary operation and claims of the V2G power interface.
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