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Design and Control of an Optimized Battery Charger for an xEV Based on Photovoltaic Power Systems
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 Title & Authors
Design and Control of an Optimized Battery Charger for an xEV Based on Photovoltaic Power Systems
Kim, Dong-Hee; Cheo, Gyu-Yeong; Lee, Byoung-Kuk;
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The continuous growth of electric vehicles has caused electric power shortages in conventional utilities owing to the charging of electric-vehicle batteries. In order to increase the capacity of these utilities, photovoltaic systems may be an appropriate solution because of their benefits. However, a large amount of loss is generated in a conventional charging structure using photovoltaic sources owing to the many power conversion processes. This paper describes a simple integrated battery charger that utilizes a PV generation system. Moreover, the system control algorithm is deduced by analyzing the operation modes in order to control the proposed integrated system. The proposed system and algorithm are verified by a 3.3-kW prototype, resulting in an increase in the efficiency of approximately 7% to 15% compared with the conventional system. And, to examine the feasibility of the proposed system, the simulation for multi-charger with various conditions are progressed.
Battery charger;Control algorithm;Electric vehicles;Photovoltaic (PV) generation system;System integration;
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