PV powered smart charging station for PHEVs |
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| Affiliation: | 1. Department of Electrical and Computer Engineering, University of Houston, Houston, TX, USA;2. Department of Electrical and Computer Engineering, Department of Engineering Technology, University of Houston, Houston, TX, USA;1. College of Mechanical Engineering, Chongqing University, Chongqing 400044, China;2. College of Economics and Management, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;3. Weichai Power Co., Ltd., WeiFang 261041, China;1. Department of Electrical Engineering, Feng Chia University, Taichung, Taiwan;2. Department of Business Administration, Feng Chia University, Taichung, Taiwan;3. Department of Risk Management and Insurance, Feng Chia University, Taichung, Taiwan;4. Ph.D. Program of Electrical and Communications Engineering, Feng Chia University, Taichung, Taiwan;1. UR: Micro Electro Thermal Systems-ENIS, IPEIS, University of Sfax, B.P: 1172-3018 Sfax, Tunisia;2. LASMAP, Polytechnic Engineering School of Tunis, University of Carthage, La Marsa, Tunis, Tunisia;1. Department of Signal Processing and Communications, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain;2. Isdefe, Department of Renewable Energy, National Institute of Aerospace Technology (INTA), Madrid, Spain;3. Department of Renewable Energy, National Institute for Aerospace Technology (INTA), Madrid, Spain |
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| Abstract: | A huge inrush of PHEVs is envisioned in the future. There is a growing risk that, this proliferation in the number of PHEVs will trigger extreme surges in demand while charging them during rush hours. To mitigate this impact, a smart charging station is proposed in which the charging of the PHEVs is controlled in such a way that the impact of charging during peak load period is not felt on the grid. The power needed to charge the plug in hybrids comes from grid-connected photovoltaic generation or the utility or both. The three way interaction between the PV, PHEVs and the grid ensures optimal usage of available power, charging time and grid stability. The system designed to achieve the desired objective consists of a photovoltaic system, DC/DC boost converter, DC/AC bi-directional converter and DC/DC buck converter. The output of DC/DC boost converter and input of DC/AC bi-directional converter share a common DC link. A unique control strategy based on DC link voltage sensing is proposed for the above system for efficient transfer of energy. |
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| Keywords: | Plug-in hybrid electric vehicle Photovoltaic DC link Battery management system Energy storage unit |
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