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A Fast DC Charger for Electric Vehicles with Minimised Ripple through Phase-Shedding of Multiphase Interleaved Converters

Lookup NU author(s): Mohammed Alharbi, Dr Mohamed Dahidah, Dr Salaheddine Ethni, Saleh Ali, Nasiru Kadandani, Professor Volker Pickert

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Abstract

This paper introduces an off-board DC fast charger for electric vehicles (EVs) with a proposed control scheme that aims to produce an output charging current with the lowest ripple possible and improve the overall efficiency of the system. The proposed configuration of the DC charger is based on multiple modules of dc-dc multiphase interleaved buck converters (IBCs). Using phase-shedding control, the DC charger can process only a fraction of the total power based on the required charging power in order to increase the efficiency of the charging system. Simulation results show that the proposed technique significantly reduces the ripple of the output charging current, which directly affects the lifespan of the EV battery.


Publication metadata

Author(s): Alharbi M, Dahidah M, Ethni S, Ali S, Kadandani N, Pickert V

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Submitted

Conference Name: The 11th International Renewable Energy Congress (IREC)

Year of Conference: 2020

Publisher: IEEE


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