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[International Journals] Seok-Min Kim, Ho-Sung Kang, and Kyo-Beum Lee, "Single-Phase Bidirectional On-Board Charger Using Starter Generator System in Hybrid Electric Vehicles," Electronics, vol. 7, no. 287, pp. 1–18, Nov. 2018. -SCIE

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This paper presents the design and control methods of a single-phase bidirectional on-board charger (OBC) using a hybrid starter

generator (HSG) and an inverter in a hybrid electric vehicle (HEV). In an HEV, there are a number of components, including the

combustion engine, transmission, traction motor, motor controller, OBC, and HSG system. The proposed design reconfigures the HSG

system to provide battery-charging capability instead of a conventional OBC based on the use of additional power relays. As a result,

the number of power converters is effectively reduced through the replacement of the conventional OBC, and, thus, the power

density is increased. This paper also proposes a control method for enabling not only battery charging but also a reactive power

support depending on the grid command. Compared with a conventional reactive power compensation method, the proposed

method has an advantage because it is located near the principal reactive power source. The simulation and experimental results

verify the validity and feasibility of the proposed bidirectional OBC design and its control methods.  

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