文档介绍：毕业设计说明书
电动汽车72V/2000W快速
充电器设计
专业
电气工程及其自动化
学生姓名
班级
学号
指导教师
完成日期
2015年6月1日
电动汽车72V/2000W快速充电器设计
摘要:电动汽车快速充电器在当今这个科技发展日新月异的时代,凭借着自己本身在电动汽车这个朝阳产业当中的关键地位,迅速被人们所认可。与此同时,想要长期的发展下去,必须拥有更可靠更全面的技术保障来做支撑。在这次的毕业设计中,考虑到经济实用这一方面,我采取的是脉冲宽度调制UC3842芯片控制电路,充电方式采用的是单端反激式充电,辅之以电力电子技术中开关电源应用相关专业的知识等等。为了保证电压能够稳固的输出,该充电器应用的是电力电子技术,利用开关通断的时间比率来达到所需要的目的。所以该充电器具有小而轻、稳而快、人工智能等方面的优势,对于国家倡导的节能环保具有不凡的意义。这次的电路设计中包含了差模、共模滤波器、整流桥、滤波电容、输出储能电感、输出滤波电容、反馈电压采样电路、开关信号IC、开关管、光耦等一系列硬件电子部分。查找相关资料发现多路并联输出的方式对我采取的单端反击式充电器的最大输出功率偏小化有一定帮助,所以我把输入交流滤波、电容滤波稳压以及整流这三个模块构成了此次设计中的整流滤波电路。PWM控制电路通过UC3842构成,光耦PC817结合稳压二极管TL431作为反馈电路,MTH6N100型号的MOSFET作为开关管,在后期的参数计算过程中还包括了通风与散热装置的设计、变压器的主要参数等等。
关键词:单端反激式电路;开关电源的应用;脉宽调制UC3842芯片
The Design of Fast Charger for Electric Vehicle With 72V and 2000W
Abstract: Nowadays,fast charger for electric vehicle in today's era of rapid development of science and technology,by virtue of their own key position in the electric car among this sunrise industry, was quickly recognized by the the same time, it is necessary to have a more reliable prehensive technical support to support the development of long-term this graduation design, taking into account the economic and practical in this regard, I take is pulse width modulation UC3842 chip control circuit, charging method is single ended flyback charging, auxiliary in power electronics technology in switch power supply application related professional knowledge and so order to ensure a stable output voltage can be, the charger application of power electronics technology, the use of the switch-off time ratio to achieve the desired purpose. So the charger has a small and light, stable and fast, artificial intelligence and other aspects of the advantages, for the country's energy-saving environmental protection has a sense of extraordinary. The circuit design includes a differential mode, common mode filter, a rectifier bridge, filter capacitor, output inductor and output filter capacitor, the feedba