本文選題：電動汽車 + 一體化充電機(jī)　； 參考：《哈爾濱工業(yè)大學(xué)》2015年碩士論文

【摘要】：電動汽車充電時其電驅(qū)動系統(tǒng)是不工作的,在不增加或少增加元器件的基礎(chǔ)上將電驅(qū)動系統(tǒng)接至電網(wǎng),利用電驅(qū)動系統(tǒng)的功率變換器構(gòu)成可控整流充電單元,同時利用電機(jī)繞組構(gòu)成濾波電感或隔離變壓器單元,共同構(gòu)成一體化充電機(jī)。對于電動汽車控制系統(tǒng),Z源變流器可以克服傳統(tǒng)變流器的不足,構(gòu)成單級直流母線電壓可調(diào)變流器,本文在Z源變流器的基礎(chǔ)上對一體化充電機(jī)進(jìn)行初步研究。本文首先介紹Z源充電機(jī)的拓?fù)浣Y(jié)構(gòu),詳細(xì)分析其工作原理及控制結(jié)構(gòu),對Z源充電機(jī)直通時間的兩種分配方式進(jìn)行對比分析。為了使系統(tǒng)能夠?qū)崿F(xiàn)單位功率因數(shù)充電,本文推導(dǎo)了Z源電容電壓的取值范圍并根據(jù)實(shí)驗(yàn)參數(shù)給出算例。其次,在Z源變流器基礎(chǔ)上本文針對電機(jī)繞組的集成方式進(jìn)行研究,為了使轉(zhuǎn)子在充電時保持靜止,提出了兩種非隔離型繞組集成方式,并進(jìn)行對比分析和仿真驗(yàn)證。對于隔離型一體化充電機(jī),本文對其工作原理和應(yīng)用前提進(jìn)行分析研究,根據(jù)建立的數(shù)學(xué)模型給出適用于電池充電的控制方法,再通過仿真進(jìn)行系統(tǒng)驗(yàn)證。再次,本文對Z源充電機(jī)整體進(jìn)行系統(tǒng)設(shè)計(jì),搭建實(shí)驗(yàn)平臺,并對硬件電路和軟件控制程序進(jìn)行詳細(xì)說明。然后對電阻負(fù)載和電池負(fù)載進(jìn)行充電以驗(yàn)證Z源充電機(jī)系統(tǒng)可行性,并對Z源充電機(jī)系統(tǒng)進(jìn)行性能測試,分析電池充電電流紋波較大的原因,提出改進(jìn)方向。最后,本文將對Z源一體化充電機(jī)進(jìn)行總結(jié)和展望,提出自己對于Z源一體化充電機(jī)研究方向的思路。
[Abstract]:The electric drive system of an electric vehicle does not work when charging. The electric drive system is connected to the power network on the basis of no additional or little additional components, and the controllable rectifier charging unit is constructed by using the power converter of the electric drive system.At the same time, the motor windings are used to form filter inductors or isolating transformer units to form an integrated charger.For the electric vehicle control system, the Z-source converter can overcome the shortcomings of the traditional converter and form a single-stage DC bus voltage adjustable converter. This paper makes a preliminary study on the integrated charging machine based on the Z-source converter.In this paper, the topology structure of Z source charger is introduced, its working principle and control structure are analyzed in detail, and the two ways of distributing through time of Z source charger are compared and analyzed.In order to realize unit power factor charging, the range of Z source capacitance voltage is deduced and an example is given according to the experimental parameters.Secondly, on the basis of Z-source converter, this paper studies the integrated mode of motor winding. In order to keep the rotor at rest while charging, two kinds of non-isolated integrated winding are proposed, and compared with each other and verified by simulation.In this paper, the working principle and application premise of the isolated integrative charger are analyzed and studied. According to the established mathematical model, the control method suitable for battery charging is given, and then the simulation is carried out to verify the system.Thirdly, the whole system of Z source charger is designed, the experimental platform is built, and the hardware circuit and software control program are described in detail.Then the resistance load and battery load are charged to verify the feasibility of the Z source charger system. The performance of the Z source charger system is tested. The reason for the large ripple of the battery charging current is analyzed and the improvement direction is put forward.Finally, this paper summarizes and prospects the Z source integrated charger, and puts forward the research direction of the Z source integrated charger.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U469.72;TM910.6

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本文編號：1764357