Abstract
This paper presents control methods for performance improvement of an integrated on-board battery charger (OBC) in hybrid electric vehicles (HEVs). HEVs generally consist of an OBC and a starter generator system (SGS). Since these each have a power conversion device for independent operation, such as battery charging and starter generator driving for engine starting, it necessarily increases the number of components, weight, and volume of the HEV. In order to overcome these disadvantages, recent research concerning the integrated OBC has progressed. Although it demands installation of power relays and an additional circuit, the integrated OBC is effectively operated for battery charging and starter generator driving. This paper proposes not only a harmonic reduction method of grid current, but also a feed-forward control method for performance improvement of the integrated OBC in HEVs. The effectiveness of the proposed control methods is verified by simulation and experimental results.
Highlights
Research concerning hybrid electric vehicles (HEVs) has been steadily growing with development of vehicular batteries
Contrary to the integrated onboard battery charger (OBC) presented in other research, this paper proposes an integrated OBC using the windings of the starter generator as a filter inductor of the DC–DC converter
In the integrated OBC operated in the battery charging mode, harmonic components included in igrid deteriorate power quality, operation efficiency, and performance of the integrated OBC and cause unstable control of the full-bridge converter and a shorter lifetime of the elements
Summary
Research concerning hybrid electric vehicles (HEVs) has been steadily growing with development of vehicular batteries. HEVs are able to replace internal combustion engine (ICE)-powered vehicles with comparable high driving efficiency and low exhaust emission. A HEV utilizes both electrical and mechanical energy to drive the vehicle, contrary to the conventional ICE powered vehicle [1,2,3,4,5]. It can be connected to a grid source to effectively use electrical energy stored in the battery. An HEV can be operated as vehicle-to-grid (V2G) by flowing electrical energy from the vehicle to the grid, and vice versa, grid-to-vehicle (G2V), by using various control methods [6,7,8,9], providing bidirectional power flow
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
