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Implementation of a bidirectional grid interface for an electric vehicle

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Resumo:Battery storage systems store excess energy when energy production exceeds the demand. Electric vehicles constitute a distributed energy storage system and, if integrated with the supply grid, can improve grid stability, efficiency and be an additional revenue source for electric vehicle owners, technology denominated vehicle-to-grid (V2G). Due to the clear relevance of this technology in a future where electrical vehicles are a major mean of transportation, research must be conducted to assess the possibilities, ramifications, advantages and disadvantages of V2G technology. In order to contribute with further knowledge on this technology, the main objective of this thesis is the simulation and physical implementation of a bidirectional single-phase power interface between an electric vehicle battery and the grid. The proposed system counts with features such as V2G for grid support, vehicle-to-home (V2H) for powering a home and grid-to-vehicle (G2V) for regular battery charging. The programsMATLAB® and Simulink were used for modelling, simulation and test of the system in a discrete simulation, allowing for conceptual validation of the power and control structure. A real-time interface based fromdSPACE was used to interface the hardware with the control algorithm developed in Simulink in a Hardware-in-the-Loop scheme, which allows rapid control prototyping, data acquisition, processing and export. Hence, a rigorous experimental validation of the implemented features. With the system validation, the main thesis objective was reached and a bidirectional power interface was successfully implemented. The proposed system is stable, transitions smoothly between operation modes and allows the definition of the active and reactive powers to be exchanged, suitable if the services provided by the vehicles are defined externally.
Autores principais:Breve, Matheus Montanini
Assunto:Distributed storage Bidirectional power interface Vehicle-to-grid Vehicle-tohome
Ano:2019
País:Portugal
Tipo de documento:dissertação de mestrado
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB

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