Integration of Six-Phase EV Drivetrains Into Battery Charging Process With Direct Grid Connection
Open access
Date
2017-09Type
- Journal Article
Abstract
The paper proposes two novel topologies for integrated battery charging of electric vehicles. The integration is functional and manifests through re-utilization of existing propulsion drivetrain components, primarily a six-phase inverter and a six-phase machine, to serve as components of a fast (three-phase) charging system. An important feature of the proposed charging systems is that they are with direct grid connection, thus nonisolated from the mains. Torque is not produced in machines during the charging process. The paper provides a comprehensive evaluation of the novel systems, together with an existing topology. Various aspects of the considered chargers are detailed and elaborated, including current balancing, interleaving modulation strategy, and influence of rotor field pulsation on control and overall performance. A control strategy is proposed and the theory and control scheme are verified by experiments. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000190947Publication status
publishedExternal links
Journal / series
IEEE Transactions on Energy ConversionVolume
Pages / Article No.
Publisher
IEEESubject
multiphase machines; Battery chargers; electric vehicles; integrated on-board chargersMore
Show all metadata