Unified Power Converter Based on a Dual-Stator Permanent Magnet Synchronous Machine for Motor Drive and Battery Charging of Electric Vehicles

Delfim Pedrosa, Vitor Monteiro, Tiago J. C. Sousa, Luis Machado and Joao L. Afonso
Additional contact information
Delfim Pedrosa: School of Engineering, Campus of Azurém, University of Minho, 4800-058 Guimarães, Portugal
Vitor Monteiro: School of Engineering, Campus of Azurém, University of Minho, 4800-058 Guimarães, Portugal
Tiago J. C. Sousa: School of Engineering, Campus of Azurém, University of Minho, 4800-058 Guimarães, Portugal
Luis Machado: School of Engineering, Campus of Azurém, University of Minho, 4800-058 Guimarães, Portugal
Joao L. Afonso: School of Engineering, Campus of Azurém, University of Minho, 4800-058 Guimarães, Portugal

Energies, 2021, vol. 14, issue 11, 1-23

Abstract: An electric vehicle (EV) usually has two main power converters, namely one for the motor drive system and another for the battery-charging system. Considering the similarities between both converters, a new unified power converter for motor drive and battery charging of EVs is propounded in this paper. By using a single unified power converter, the cost, volume, and weight of the power electronics are reduced, thus also making possible a reduction in the final price of the EV. Moreover, the proposed unified power converter has the capability of bidirectional power flow. During operation in traction mode, the unified power converter controls motor driving and regenerative braking. Additionally, during operation in battery-charging mode, with the EV plugged into the electrical power grid, the unified power converter controls the power flow for slow or fast battery charging (grid-to-vehicle (G2V) mode), or for discharging of the batteries (vehicle-to-grid (V2G) mode). Specifically, this paper presents computer simulations and experimental validations for operation in both motor-driving and slow battery-charging mode (in G2V and V2G modes). It is demonstrated that the field-oriented control used in the traction system presents good performance for different values of mechanical load and that the battery-charging system operates with high levels of power quality, both in G2V and in V2G mode.

Keywords: electric vehicle; unified power converter; field-oriented control; model predictive control; battery charging; grid-to-vehicle; vehicle-to-grid (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/11/3344/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/11/3344/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:11:p:3344-:d:570238

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().