Title: Research on an integrated charging and drive system based on DAB converter

Authors: Kai Zhou; Haolin Fang

Addresses: Engineering Research Centre of Automotive Electronics Drive Control and System Integration (Ministry of Education), Harbin University of Science and Technology, Harbin, Heilongjiang, China ' Engineering Research Centre of Automotive Electronics Drive Control and System Integration (Ministry of Education), Harbin University of Science and Technology, Harbin, Heilongjiang, China

Abstract: In this work, we propose an integrated charging and drive system based on a Double Active Bridge (DAB) converter to improve the power density of an electric vehicle's on-board charger and motor controller. The power circuit of an integrated charging and drive system is analysed, and a working principle of battery charging and motor drive modes is presented. The functional characteristics of single-phase shift control of the DAB converter are put forward, and a control strategy is formulated under battery charging and motor drive modes. The optimal design of key inductance and capacitance parameters is also given. An integrated charging and drive system simulation model is established based on theoretical analysis and parameter calculation. Power factor correction in the charging mode and load dynamic response in the driving mode are simulated to verify the feasibility of the system design.

Keywords: electric vehicle; integrated charging and drive system; double active bridge converter; single-phase shift control.

DOI: 10.1504/IJVAS.2023.136163

International Journal of Vehicle Autonomous Systems, 2023 Vol.17 No.1/2, pp.1 - 22

Accepted: 21 Jul 2023
Published online: 19 Jan 2024 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article