DC-AC车载逆变器设计与实现

编号201103222011024120南京航空航天大学金城学院毕业设计题目DC-AC车载逆变器设计与实现学生姓名施坜圆学号2011024120系部自动化系专业自动化班级20110322指导教师朱海霞副教授二〇一五年五月南京航空航天大学金城学院本科毕业设计（论文）诚信承诺书本人郑重声明：所呈交的毕业设计（论文）（题目：DC-AC车载逆变器设计与实现）是本人在导师的指导下独立进行研究所取得的成果。尽本人所知，除了毕业设计（论文）中特别加以标注引用的内容外，本毕业设计（论文）不包含任何其他个人或集体已经发表或撰写的成果作品。作者签名：施坜圆2015年5月16日（学号）：2011024120毕业设计（论文）报告纸iDC-AC车载逆变器设计与实现摘要车载逆变器是将汽车中的蓄电池转换成日常使用的220V/50Hz的交流电，供人们随身携带的电子产品如笔记本、ipad等使用。目前市场上大多的车载逆变器都为方波或者是修正弦波，少数为正弦波逆变器，但其价格非常昂贵。正弦波逆变弥补了方波逆变的不足，适合各类的负载，并且对电子产品本身的影响也相对较小。本设计基于开关电源技术和电力电子技术，采用二次逆变的方式设计。前级采用SG3525芯片，将SG3525产生的PWM信号控制场效应管的开关，再经EE55高频变压器将12V的低压直流电升压至360V的高压交流电，通过整流滤波得到高压直流电。后级采用EG8010和IR2110芯片，通过EG8010输出的SPWM信号控制开关管的导通，通过取样电阻电压反馈，经过LC工频滤波及相应的输入输出电压保护，最后得到稳定标准的正弦波。关键字：车载逆变器，正弦波逆变器，SPWM直流电源式逆变器，EG8010毕业设计（论文）报告纸iiDC-ACvehicle-mountedinverterdesignandimplementationAbstractCarinverteristheobjectwhichcanalterthecarbatteryintheautomobileintodailyused220v/50Hzalternatingcurrent(AC),providedforproductscarriedbypeoplesuchaspersonalcomputer(PC)andIPADetc.Currentlymostoftheinvertersonthemarketaresquarewaveinvertersormodifiedsinewaveinverter,Minorityoftheinverteraresinewaveinverters,butitspriceisveryexpensive.Sinewaveinvertermadeupfortheinadequacyofsquarewaveinverter,suitableforallkindsofload,andimpactonelectronicproductitselfisrelativelysmall.Thisdesignisbasedontheswitchingpowersupplytechnologyandpowerelectronicstechnology,adoptthewayofthesecondaryinverterdesign.TheprecedingstageusesthePWMsignalgeneratedbySG3525chipcontrolthefield-effecttubeonandoff,thenthroughEE55high-frequencytransformeroflowvoltageDCboosterfrom12vto360vhighvoltagealternatingcurrent(AC),highvoltagedirectcurrent(dc)isobtainedbyrectifyingandfiltering.BackwardstageusingEG8010andIR2110chip,throughEG8010outputSPWMsignalcontrolswitchtubeconduction,throughsamplingresistorvoltagefeedback,finallyobtainedstableandstandardsinewavebytheLCpowerfrequencyfiltrationandthecorrespondinginputandoutputvoltageprotection.KeyWords:Carinverter;sinewaveinverter;SPWMinverterdcpowersupply;EG8010毕业设计（论文）报告纸iii目录摘要...................................................................ⅰAbstract...................................................................ⅱ第一章绪论...............................................................11.1逆变器的发展........................................................11.2课题研究的目的和意义.................................................11.3车载逆变器研究现状和发展方向.........................................11.3.1车载逆变器研究现状............................................11.3.2车载逆变器发展方向............................................21.4本论文主要设计内容...................................................2第二章总体设计方案.......................................................42.1系统总体功能及概述..................................................42.2方案设计比较........................................................42.2.1变压器的选择...................................................42.2.2驱动芯片的选择.................................................52.2.3单双极性调制的选择.............................................52.2.4SPWM控制芯片选择..............................................62.3最终方案确定........................................................6第三章整体电路设计.......................................................73.1整体设计思路.........................................................73.1.1前级逆变电路设计思路..........................................73.1.2后级逆变电路设计思路..........................................83.2脉宽调制技术及原理...................................................83.2.1PWM控制基本理论...............................................83.2.2PWM逆变电路..................................................103.3正弦波脉宽调制技术的实现方法........................................11毕业设计（论文）报告纸iv3.3.1硬件电路调制法................................................113.3.2软件调制法....................................................12第四章逆变电路设计......................................................134.1逆变器主要集成芯片及其功能介绍......................................134.1.1SG3525芯片及应用.............................................134.1.2EG8010芯片及应用.............................................154.1.3IR2110芯片及应用.............................................184.2DC/DC驱动电路......................................................194.2.1SG3525驱动电路...............................................194.2.2驱动保护电路.................................................204.3前级升压电路........................................................214.4整流滤波电路........................................................224.5SPWM驱动电路.......................................................234.6后级DC-AC逆变电路.................................................24第五章系统调试..........................................................265.1前级DC-DC驱动板调试...............................................265.2SPWM驱动板调试.....................................................265.3前级升压调试.......................................................275.4后级逆变调试.......................................................28第六章总结与展望........................................................29参考文献..................................................................30致谢............................................