本文選題：電磁兼容　切入點：傳導(dǎo)耦合　出處：《重慶理工大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著科學(xué)與電子技術(shù)的發(fā)展,汽車已經(jīng)從傳統(tǒng)的機械產(chǎn)品轉(zhuǎn)化為機電一體化的產(chǎn)品,汽車內(nèi)部系統(tǒng)幾乎都被電子產(chǎn)品所覆蓋,車外電磁干擾隨著大型變電站的增多,LED廣告顯示屏的廣泛運用,未來電動車充電樁設(shè)備布置的完善,無人駕駛技術(shù)、車聯(lián)網(wǎng)等新型科技的開發(fā),汽車外部受到的電磁干擾程度也同樣不可忽視。為縮短汽車整車電磁抗擾研發(fā)周期、降低研發(fā)成本,仿真分析常常被用于設(shè)計前期進行性能分析預(yù)測。整車抗擾試驗是考察車輛處于較強的外部場環(huán)境時各系統(tǒng)的功能和性能是否正常。此時,由于車身的保護和影響,被考察的系統(tǒng)零部件并不直接置于外部的騷擾環(huán)境下,決定零部件所面臨的外加場強弱的,是經(jīng)過車身影響后,零部件所處位置的場強弱。分析一定外加場條件下,車內(nèi)零部件所處位置的場強,再結(jié)合零部件自身的抗擾性能,就可以幫助預(yù)測安裝在整車上的零部件,在抗擾實驗時可能的表現(xiàn)。為了利用仿真分析手段預(yù)測整車的抗擾性能,本文對汽車整車在外加電磁場條件下車內(nèi)的場分布進行了仿真研究。研究的主要內(nèi)容有:1.通過對電磁兼容理論的學(xué)習(xí)與汽車的電磁環(huán)境的分析,講述了電磁干擾源的形成機理以及電磁干擾三要素。通過對電磁傳播途徑的分析,對傳導(dǎo)耦合與輻射耦合在理論方面進行了詳細(xì)說明。2.依據(jù)ISO11451-2標(biāo)準(zhǔn),對喇叭天線進行了實驗標(biāo)定,同時進行了以喇叭天線為輻射源的整車電磁場分布情況測試,得到了實驗部分整車電磁分布情況的具體數(shù)據(jù)。3.根據(jù)整車抗擾實驗布置參數(shù),在FEKO中進行了整車電磁抗擾仿真的布置,并分別對以喇叭天線和平面波為輻射源進行了整車電磁抗擾仿真,得到了仿真部分整車電磁分布情況的具體數(shù)據(jù)。4.依據(jù)實驗與仿真得出的數(shù)據(jù),對它們進行數(shù)據(jù)分析對比�？偨Y(jié)出在仿真中建立具體天線有利于提高仿真預(yù)測精度。
[Abstract]:With the development of science and electronic technology, the automobile has changed from the traditional mechanical products to the electromechanical products, and almost all the internal systems of the automobile are covered by the electronic products. With the increase in the number of large substations and the widespread use of LED advertising displays, the development of new technologies such as the layout of charging piles for electric vehicles in the future, the development of unmanned technology, and the development of new technologies such as the networking of cars, etc. In order to shorten the research and development cycle of electromagnetic disturbance rejection and reduce the cost of research and development, Simulation analysis is often used for performance analysis and prediction in the early stage of design. The anti-disturbance test of the whole vehicle is to investigate whether the function and performance of each system is normal when the vehicle is in a strong external field environment. At this time, due to the protection and influence of the body, The system parts under investigation are not directly placed in the external disturbance environment. It is the field strength in the position of the parts which is affected by the body of the body that determines the external field strength of the parts, and the field strength of the parts is analyzed under certain external field conditions. The field strength of the position of the parts in the vehicle, combined with the anti-disturbance performance of the parts themselves, can help to predict the possible performance of the components installed on the whole vehicle in the anti-disturbance experiment. In order to predict the anti-disturbance performance of the whole vehicle by means of simulation analysis, In this paper, the field distribution of the whole vehicle under the condition of external electromagnetic field is simulated. The main contents of the study are: 1. Through the study of the EMC theory and the analysis of the electromagnetic environment of the automobile, The formation mechanism of electromagnetic interference source and three elements of electromagnetic interference are described. Through the analysis of electromagnetic propagation path, the theoretical description of conduction coupling and radiation coupling is given in detail. 2. According to ISO11451-2 standard, The horn antenna is calibrated experimentally, and the electromagnetic field distribution of the whole vehicle with the horn antenna as the radiation source is tested, and the specific data of the electromagnetic distribution of the whole vehicle are obtained. 3. According to the parameters of the vehicle anti-disturbance experiment, The whole vehicle electromagnetic disturbance rejection simulation is carried out in FEKO, and the whole vehicle electromagnetic immunity simulation is carried out with the horn antenna and plane wave as the emitter source, respectively. The specific data of the electromagnetic distribution of the whole vehicle is obtained. 4. According to the data obtained from the experiment and simulation, the data are analyzed and compared. It is concluded that the establishment of the specific antenna in the simulation is helpful to improve the accuracy of the simulation prediction.
【學(xué)位授予單位】：重慶理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U467.1

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