In this work, a three-phase integrated onboard battery charger is investigated and implemented for electric vehicle (EV) applications. A three-switch add-on interface is introduced to connect with the inverter and the motor windings, such that a two-channel interleaved boost converter is formed for the battery charging. The detailed system analysis, design methodology, and control strategy are discussed. Moreover, a simulation study is carried out to validate the effectiveness of the proposed integrated charger. As verification, a 5 kW liquid-cooled prototype is built and tested. The proposed integrated charging system achieves a power factor of 0.99, and total harmonic distortion (THD) of 4.82% at 5 kW with an efficiency of 93.2%.
A Compact Electric Motor Integrated Onboard Charging System for Electric Vehicles
Sae Intl. J Cav
Sae International Journal of Connected and Automated Vehicles ; 3 , 2 ; 119-128
02.07.2020
10 pages
Aufsatz (Konferenz)
Englisch
Integrated onboard chargers for plug-in electric vehicles
Europäisches Patentamt | 2020
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