Grid tied PV- Electric Vehicle Battery Charger using Bidirectional Converter

N. Sujitha, S. Krithiga

Abstract


Research on renewable energy based Electric Vehicle battery charging system is booming in the automobile industry in the recent years. The intermittent nature of the renewable energy sources leads to the grid connected renewable energy systems for Electric vehicle battery charging applications. Hence, an Electric Vehicle battery charger using grid connected PV system is proposed in this paper. The proposed charger is capable of charging the EV battery continuously irrespective of solar irradiations using dc-dc converter and bidirectional ac-dc converter. Sepic converter is preferred for dc-dc converter and Line commutated converter is used as a bidirectional converter with the help of the proposed bidirectional configurator in the charging system. During sunshine hours, PV array power generated is used to charge the EV battery alone and during peak sunshine hours, apart from charging of EV battery, the excess PV array power is fed to the single phase utility grid. During low and non sunshine hours, the EV battery charging was supported by the utility grid through bidirectional ac-dc converter.  The proposed electric vehicle battery charger is simulated in the MATLAB/Simulink software and the dynamic response of the system was studied and its results are furnished in this paper.


Keywords


Electric Vehicle Battery; Bidirectional ac-dc converter; Line commutated converter; Photovoltaic array; Sepic converter; Utility grid.

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References


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DOI (PDF): https://doi.org/10.20508/ijrer.v9i4.9975.g7894

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