發(fā)布時(shí)間：2018-09-14 15:03

【摘要】：動(dòng)態(tài)無(wú)線充電技術(shù)是解決電動(dòng)汽車車體笨重、續(xù)航時(shí)間短和充電困難等問題的有效辦法,其中電動(dòng)汽車的定位和發(fā)射線圈開關(guān)的實(shí)時(shí)控制及系統(tǒng)狀態(tài)監(jiān)測(cè)是該技術(shù)的重要組成部分。本文在充分調(diào)研電動(dòng)汽車無(wú)線充電技術(shù)發(fā)展現(xiàn)狀的基礎(chǔ)上,簡(jiǎn)要分析了動(dòng)態(tài)無(wú)線充電的基本原理,分別從地面設(shè)備和車載設(shè)備兩方面介紹了電動(dòng)汽車動(dòng)態(tài)無(wú)線充電系統(tǒng)的基本結(jié)構(gòu)。在地面設(shè)備系統(tǒng)中,除高頻電源外,還包括一系列沿電動(dòng)汽車行駛路面鋪設(shè)的分立發(fā)射線圈。這些線圈相當(dāng)于向電動(dòng)汽車直接供電的電源,所謂動(dòng)態(tài),就是要實(shí)時(shí)開通和關(guān)斷電動(dòng)汽車所處位置前后的發(fā)射線圈。電動(dòng)汽車的定位檢測(cè)是實(shí)現(xiàn)動(dòng)態(tài)無(wú)線充電的難點(diǎn)之一,文中列舉了當(dāng)前幾種可實(shí)現(xiàn)車輛定位的技術(shù),經(jīng)過對(duì)比選擇了磁定位檢測(cè)技術(shù)。以磁釘和磁阻傳感器作為核心元件,分析了磁釘?shù)拇艌?chǎng)分布特點(diǎn)以及磁阻傳感器的基本原理,完成了元件選型和信號(hào)調(diào)理電路設(shè)計(jì)。在軟件方面,設(shè)計(jì)了橫/縱向磁場(chǎng)匹配定位算法和發(fā)射線圈投切開關(guān)的控制算法。為了實(shí)現(xiàn)發(fā)射線圈開關(guān)狀態(tài)和電源狀態(tài)的監(jiān)控,設(shè)計(jì)了電動(dòng)汽車動(dòng)態(tài)無(wú)線充電狀態(tài)監(jiān)控界面。本文利用MATLAB/Simulink仿真驗(yàn)證了發(fā)射線圈切換控制對(duì)系統(tǒng)穩(wěn)定性的影響。最后將磁定位檢測(cè)系統(tǒng)應(yīng)用于電動(dòng)汽車動(dòng)態(tài)無(wú)線充電系統(tǒng)演示平臺(tái),進(jìn)行了聯(lián)調(diào)實(shí)驗(yàn),初步達(dá)到了系統(tǒng)的設(shè)計(jì)要求。
[Abstract]:Dynamic wireless charging technology is an effective way to solve the problems of heavy body, short life and difficult charging of electric vehicle. The position of electric vehicle, the real-time control of launch coil switch and system condition monitoring are important parts of this technology. Based on the investigation of the development of wireless charging technology for electric vehicles, the basic principle of dynamic wireless charging is briefly analyzed in this paper. This paper introduces the basic structure of dynamic wireless charging system of electric vehicle from ground equipment and vehicle equipment respectively. In the ground equipment system, in addition to the high frequency power supply, there are also a series of discrete emission coils laid along the road surface of electric vehicles. These coils are equivalent to direct power supply to electric vehicles, so-called dynamic, which is to turn on and off the launching coils before and after the position of the electric vehicles in real time. The location detection of electric vehicle is one of the difficulties in realizing dynamic wireless charging. In this paper, several technologies that can realize vehicle positioning are listed, and magnetic location detection technology is compared and selected. Based on the magnetic nail and magnetoresistive sensor, the magnetic field distribution characteristics of the magnetic nail and the basic principle of the magnetoresistive sensor are analyzed, and the selection of the components and the design of the signal conditioning circuit are completed. In the aspect of software, the transverse / longitudinal magnetic field matching algorithm and the control algorithm are designed. In order to monitor the switching state and power state of the transmitting coil, the dynamic wireless charging state monitoring interface for electric vehicle is designed. In this paper, the MATLAB/Simulink simulation is used to verify the effect of the switching control of the transmitting coil on the stability of the system. Finally, the magnetic location detection system is applied to the demonstration platform of the dynamic wireless charging system of electric vehicle, and the combined adjustment experiment is carried out, which preliminarily meets the design requirements of the system.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM724;TM910.6

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