International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
Design of wireless power transfer charge station for electric vehicle R.Anandhi1, M.Shreen sithara2, B.Ramya Devi3 , A.Krishnaveni 4 ,D.Sellathambi5 Students[1,2,3,4], Assistant Professor[5], Parisutham Institute of Technology and Science , Department of Electronics and Communication Engineering , Tamil Nadu , India. ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - Wireless power transfer (WPT) is the current technology using magnetic resonance which could set error free from the frustrating wires. In fact, the WPT adopts the same concepts which has already been developed with the term inductive power transfer. WPT technology is developing hastily in recent years. At kilowatts power level, the transfer distance increases from several millimeters to several hundred millimeters with a grating to load efficiency above 90%. This enhancement makes the WPT very attractive to the electric vehicle (EV) charging applications in both stationary and dynamic charging situations. This paper reviewed the technologies in the WPT area suitable to EV wireless charging. By introducing WPT in EVs, the obstacles of charging time, range, time and cost can be easily mitigated. Battery technology is no longer similar in the mass market penetration. It is hoped that scientists could be encouraged by the state-of-the-art achievements, and push forward the further growth of WPT as well as the expansion of EV. Key Words: charging.
Wireless power transfer, electric vehicle, Magnetic resonance, Inductive resonance coupling, wireless
1. INTRODUCTION For energy, environment, and many other aspects, the electrification for transportation has been carrying out. In railway systems, the electric locomotives have already been well urbanized for many years. However, for electric vehicles (EVs), the high elasticity makes it not easy to get power in a similar way. Instead, a high power and large capacity battery pack is usually prepared as an energy storage unit to make an EV to operate for an acceptable distance. Owner has to face some complex scenarios by means of this wired EV.Until now, the EVs are not so attractive to consumers even with many government motivation programs. Government subsidy and tax incentive are one key to increase the market share of EV today. The problem for an electric vehicle is nothing else but the electricity cargo space technology, which requires a battery which is the bottleneck today due to its unacceptable energy density, limited life time and high cost. Wireless charging depend upon the principle of Inductive Power Transfer (IPT) or magnetic resonance. This is the method of transferring an electrical current between two objects through the use of coils to induce an electromagnetic field. Supply voltage is converted into high frequency alternating current which is sent to the transmitter coil by the transmitter circuit.Then the alternating current induces a time varying magnetic field in the transmitter coil. Alternating current flowing within the transmitter coil induces a magnetic field which tends to the receiver coil (when within a specified distance).The magnetic field produces current within the receiver coil. The method in which the energy is transmitted between the transmitter and receiver coil is also referred to as magnetic or resonant coupling and is achieved by both coils resonating at the same frequency. An RFID system consists of tags, readers, communication protocols, computer networks, and databases. The tag consists of miniature chip containing product information with an affixed radio antenna. The tag is merged to an item or its packaging and contains a unique serial number called an electronic product code which is used to uniquely identify the pallet, case, or item. For low-cost tags, a reader transmits a radio signal to the tags to energize them so that the tag can transmit its code. A reader can be either stationary in a fixed state or portable. There are communication protocols that define the exchange of messages from the tag to reader and vice versa. The readers are connected to a computer network so that they can be enquired by a management system. Then the management system can inquire a database determined by the electronic product code to find out more information about the item to which the tag is attached.
1.1 Existing approach One of the major issues in existing power system is the losses occurring in the transmission and allocation of energy to the end users. Because claim drastically increases daily, the power generation increases and also the power loss can be increased. The percentage of loss of power during transmission and circulation is approximated as 26%. The primary reason for power loss during transmission and circulation may be the resistance of wires used for grid. The efficiency of Š 2017, IRJET
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