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The Chrging System of Lithium Battery on Electric Vehivle Based on Un-Contact Energy Transfer

Author: LiuXiuFang
Tutor: LiLianBing
School: Hebei University of Technology
Course: Control Science and Engineering
Keywords: Lithium-ion battery Non-radioactive coupling Un-contact energy transmission DDS
CLC: TM912
Type: Master's thesis
Year: 2011
Downloads: 111
Quote: 0
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Abstract


Advent of the automobile has changed the world. With the convenience automobile give to mankind, many issues such as energy and environmental raises. More and more automobile companies put their attention on new energy vehicles, and looking for new energy which is more economical, energy saving, environmental protection is imminent for vehicle power. New energy vehicles will be a breach for Automotive Industry Restructuring, and the development of electric vehicles can ease the problem of energy crisis and environmental pollution.Un-contact energy transmission technology is a new method of energy transmission. It combines the results of multi-disciplinary knowledge. It is mainly used the principle of non-radioactive magnetic coupling. Using un-contact energy transmission technology to charge for electric vehicles, because of adopting electromagnetic coupling, makes that it has no friction between power supply system and the load, and it is easy to maintenance. Comparing with the traditional line charging device, the new one has flexible and convenient performance.This dissertation focuses on the un-contact energy transmission technology to the lithium-ion battery and the protection for lithium-ion battery charge and discharge process to do the following aspects of research.(1) Analyzing the electrical properties of lithium-ion battery and fast charge mode commonly used, the circuit of lithium-lion battery based on un-contact power supply is designed and simulated.(2) The subject designs the hardware of protection board for lithium-lion battery base on PIC MCU.(3) When the energy input coil signal frequency is the same with energy receiver coil, resonant coupling occurs for coil, which shows that witricity energy is being transferred, and the frequency is at about 5-15MHz. The signal must pass the power amplifier, and has reached the charge power which is required for lithium-ion battery.

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CLC: > Industrial Technology > Electrotechnical > Independent power supply technology (direct power) > Battery
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