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Design and Study on Intelligent Rapid Charger for Electric Vehicle

Author: ChenYiPing
Tutor: XiaChaoYing
School: Tianjin University
Course: Control Theory and Control Engineering
Keywords: Smart Charger Switching Power Supply Fast charging Bi - directional DC-DC converter
CLC: TM910.6
Type: Master's thesis
Year: 2008
Downloads: 623
Quote: 10
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Abstract


Electric car with its low-emission , high- efficiency , multi- energy characteristics to become one of the important way to solve the environmental pollution and the shortage of oil resources . Rapid development of electric vehicle technology at home and abroad , but as the power source of the battery of electric vehicles is the bottleneck of the development . Designed to meet the power battery charging needs car charger , can effectively extend the driving range of electric vehicles , and to provide effective support for electric vehicles practical and universal . The purpose of this paper is to design a miniaturized , lightweight , intelligent car charger power battery fast charge feature . This article describes the design process of a car charger , including the design and selection of the main circuit topology design , power components , software systems , and communication protocol design . Charging power supply design uses a half-bridge circuit topology as the high - frequency switching power supply technology to achieve miniaturization and lightweight requirements . Fast charging requirements , in addition to using a variety of conventional charging methods , and also designed and implemented for fast charging of the battery to the positive and negative pulse charging method . To this end , the paper used in the output filtering links joined bidirectional half-bridge DC-DC converter circuit structure, to achieve the battery discharge and energy recovery , improving the charging efficiency of the machine . The introduced each charging method of software design and program flow chart , each charging method designed charging parameters can be configured to control each charging method . Communication with the host computer via a serial communications protocol to enact its own charging parameters set by the host computer , the the charging machine control and real-time display charge status and fault information . Finally , the experimental results indicate that the charging main circuit topology design feasible , and it can achieve the expected requirements . At the same time , the design of the charging method and its software program , parameter setting functions , communication protocols are working to fully meet the design requirements .

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CLC: > Industrial Technology > Electrotechnical > Independent power supply technology (direct power) > General issues > Charging method,charging equipment
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