This content is not included in your SAE MOBILUS subscription, or you are not logged in.

A Compact Electric Motor Integrated Onboard Charging System for Electric Vehicles

Journal Article
12-03-02-0010
ISSN: 2574-0741, e-ISSN: 2574-075X
Published July 02, 2020 by SAE International in United States
A Compact Electric Motor Integrated Onboard Charging System for Electric Vehicles
Sector:
Citation: Shi, C., Sankar, A., Zou, S., Zhang, Z. et al., "A Compact Electric Motor Integrated Onboard Charging System for Electric Vehicles," SAE Intl. J CAV 3(2):119-128, 2020, https://doi.org/10.4271/12-03-02-0010.
Language: English

Abstract:

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%.