Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Variable Output and Parallel Operation Control of EV Charger
Authors Sang-Hyeok Lee ; Seong-Gu Kang ; Prakash Awasthi ; Jung-Goo Hwang ; Seung-Yul Lee ; Han-Byul Wi ; Sung-Jun Park
DOI 10.6113/TKPE/2013.18.2.153
Page pp.153-160
ISSN 1229-2214
Keywords parallel control; battery charger; resonance; electric vehicle
Abstract This research paper describes the development of battery charger with a variable output voltage capacity for charging the batteries used in electrical vehicles. The voltage and current accordingly is control via the buck converter that receives three phase current at primary side and fed to bridge rectifier which is comprised of full bridge converter and HFTR(High Frequency Transformer) for isolation and a square wave AC output. The transformer primary side is in series to divide certain charging current and the secondary side is comprised of six fix transformers so that they can generate certain amount of power and various output voltage through relay connection using 6 DC outputs. Moreover, all parallel connected full bridge serial resonant converter communicate together with upper(main) controller. The constructed structure is verified by conducting the test on PSIM as well as experimentally.