本文選題：諧振式輸電 + 多發(fā)射線圈　； 參考：《華南理工大學(xué)》2014年碩士論文

【摘要】：隨著科學(xué)技術(shù)的發(fā)展以及科學(xué)家的大膽嘗試，未來(lái)的無(wú)線電能傳輸技術(shù)將給電力生產(chǎn)和輸送兩大問(wèn)題帶來(lái)極大便利。一直以來(lái)，世界各國(guó)的科學(xué)家為了實(shí)現(xiàn)電能的無(wú)線傳輸做出了巨大的努力。從最早期的尼古拉特斯拉對(duì)于無(wú)線輸電的宏偉計(jì)劃，到最近麻省理工學(xué)院物理學(xué)教授馬里恩索佳西奇的無(wú)線燈泡實(shí)驗(yàn)，都證實(shí)了科學(xué)家們的努力。在日常生活與生產(chǎn)中，無(wú)線電能傳輸?shù)膽?yīng)用前景非常廣闊，其應(yīng)用領(lǐng)域涉及軍事，醫(yī)學(xué)，交通以及日常家用電器等。然而，一直以來(lái)無(wú)線電能的傳輸仍然無(wú)法突破距離和效率的限制，無(wú)法大規(guī)模高效率進(jìn)行推廣應(yīng)用。而最近取得的研究成果令人振奮，讓人們?cè)絹?lái)越感覺(jué)到無(wú)線輸電給日常生活所帶來(lái)的好處。諧振式無(wú)線電能傳輸技術(shù)是利用電磁諧振原理以及突破傳統(tǒng)利用耦合式電磁感應(yīng)原理及利用無(wú)線電波原理的無(wú)線電能傳輸技術(shù)，并使電能的無(wú)線傳輸成為了可能。 首先，本文基于空間距離兩空心線圈的電磁場(chǎng)互感耦合模型，并分析了線圈大小以及兩個(gè)空心線圈空間距離和電能傳輸效率的關(guān)系，同時(shí)分析電能傳輸效率的影響因素以及計(jì)算公式，進(jìn)一步深入了解影響無(wú)線輸電技術(shù)的因素。并且通過(guò)對(duì)多發(fā)射源諧振式無(wú)線輸電系統(tǒng)特性分析，研究多個(gè)發(fā)射源同時(shí)存在時(shí)對(duì)負(fù)載供電的影響，，并通過(guò)空間幾何結(jié)構(gòu)分析進(jìn)行等效簡(jiǎn)化，得出多個(gè)發(fā)射源共存時(shí)會(huì)增加系統(tǒng)分析的復(fù)雜程度，而簡(jiǎn)化后的無(wú)線輸電裝置大大降低了分析難度。同時(shí)，本文重點(diǎn)對(duì)無(wú)線電能傳輸?shù)木�圈模型進(jìn)行研究，探討無(wú)線輸電線圈的最佳實(shí)現(xiàn)方式，以實(shí)現(xiàn)諧振式無(wú)線電能傳輸系統(tǒng)優(yōu)化設(shè)計(jì)的目標(biāo)。設(shè)計(jì)制作了一個(gè)多維旋轉(zhuǎn)式無(wú)線輸電裝置，通過(guò)轉(zhuǎn)速和線圈個(gè)數(shù)組合的對(duì)比分析來(lái)優(yōu)化系統(tǒng)設(shè)計(jì)，進(jìn)一步對(duì)本文理論分析進(jìn)行驗(yàn)證。 其次，為了驗(yàn)證本課題的理論正確性，本文還制作了一套樣機(jī)來(lái)對(duì)理論分析進(jìn)行驗(yàn)證，樣機(jī)的制作關(guān)鍵在于優(yōu)化線圈的能量傳遞方式，即如何通過(guò)線圈的優(yōu)化設(shè)計(jì)實(shí)現(xiàn)能量多維傳遞。因此，如果通過(guò)功率源的旋轉(zhuǎn)來(lái)實(shí)現(xiàn)能量的多維傳遞必然存在一定的安全隱患，而本文通過(guò)對(duì)無(wú)線輸電中繼線圈的優(yōu)化設(shè)計(jì)，即通過(guò)對(duì)中繼線圈加裝旋轉(zhuǎn)電機(jī)，將中繼線圈由傳統(tǒng)的靜態(tài)能量傳遞方式改變?yōu)閯?dòng)態(tài)的能量傳遞方式，實(shí)際上就是通過(guò)在近場(chǎng)改變中繼線圈所產(chǎn)生的磁場(chǎng)的變化形式，使得磁場(chǎng)通過(guò)旋轉(zhuǎn)變化達(dá)到能量的多維傳遞效果，既保證了功率源的安全性又能同時(shí)對(duì)多負(fù)載進(jìn)行能量供應(yīng)。通過(guò)試驗(yàn)表明諧振式無(wú)線電能傳輸如果采用多發(fā)射線圈模型將增加系統(tǒng)成本和復(fù)雜程度，而本文提出的多維旋轉(zhuǎn)轉(zhuǎn)式動(dòng)態(tài)輸電線圈的理論方案很好解決了無(wú)線輸電方向性及多負(fù)載同時(shí)供電的難題，并有利于無(wú)線輸電系統(tǒng)的推廣應(yīng)用。但是，在實(shí)驗(yàn)驗(yàn)證過(guò)程中我們發(fā)現(xiàn)旋轉(zhuǎn)中繼線圈在旋轉(zhuǎn)的過(guò)程中存在死區(qū)，即負(fù)載接收到的能量是斷續(xù)的，而我們發(fā)現(xiàn)這個(gè)死區(qū)的角度非常小，為了解決這個(gè)問(wèn)題，經(jīng)過(guò)多次實(shí)驗(yàn)，我們發(fā)現(xiàn)通過(guò)將中繼線圈設(shè)計(jì)成十字架形狀就能很好的消除死區(qū)，并能降低旋轉(zhuǎn)速度，因此，我們提出了進(jìn)一步的線圈優(yōu)化設(shè)計(jì)方案。 最后，對(duì)本次課題研究的主要工作內(nèi)容進(jìn)行了總結(jié)，并針對(duì)該課題在設(shè)計(jì)過(guò)程中遇到的問(wèn)題，提出了進(jìn)一步研究的設(shè)想。
[Abstract]:With the development of science and technology and the bold attempt of scientists, the future radio transmission technology will bring great convenience to the two major problems of electric power production and transportation. The grand plan, to the recent Massachusetts Institute of Technology physics professor Marion Alfonso Jia Txiki's wireless light bulb experiments, confirmed the efforts of scientists. In daily life and production, radio transmission has a very broad prospect of application in military, medical, transportation, and daily household appliances. The transmission of wire energy is still unable to break through the limits of distance and efficiency and can not be popularized in large scale and high efficiency. The recent research results are exciting, making people more and more aware of the benefits of wireless transmission to daily life. Using the principle of coupled electromagnetic induction and radio transmission technology based on radio wave principle, it is possible to transmit wireless power.
First, this paper is based on the mutual inductance coupling model of the two hollow coil with space distance, and analyses the relationship between the size of the coil and the space distance of the two hollow coils and the transmission efficiency of the electric energy. It also analyzes the influence factors and the calculation formula of the power transmission efficiency, and further understands the factors affecting the wireless transmission technology. In this paper, the characteristics of multi source resonant transmission system are analyzed, and the influence of multiple emission sources on the load power supply is studied, and the space geometric structure analysis is used to simplify the system. The complexity of the system analysis will be increased when multiple sources coexist. The simplified wireless transmission device greatly reduces the difficulty of analysis. In this paper, the paper focuses on the study of the radio transmission coil model, discusses the best way to realize the wireless transmission coil, so as to achieve the goal of optimizing the design of the resonant radio energy transmission system. A multi-dimensional rotary wireless transmission device is designed and made, and the system design is optimized through the contrast analysis of the combination of rotation speed and the number of coils. The theoretical analysis of this paper is further verified.
Secondly, in order to verify the correctness of the theory, a prototype is also made to verify the theoretical analysis. The key to the production of the prototype is to optimize the energy transfer mode of the coil, that is, how to achieve multidimensional transfer of energy through the optimization of the coil. In this paper, through the optimization design of the wireless transmission relay coil, this paper changes the relay coil from the traditional static energy transfer mode to the dynamic energy transfer mode by adding the rotary motor to the relay coil, in fact it is the change of the magnetic field generated by the relay coil in the near field. In form, the multidimensional transfer effect of the magnetic field is achieved through rotation, which ensures both the security of the power source and the supply of energy at the same time. It is shown by experiments that the system costs and complexity will be increased if the multiple transmission coil model is used for the transmission of the resonant radio, and the multidimensional rotational rotation proposed in this paper is proposed. The theoretical scheme of the dynamic transmission coil can solve the problem of wireless transmission direction and multi load simultaneous power supply, and is beneficial to the popularization and application of the wireless transmission system. However, in the process of experimental verification, we found that there is a dead zone in the rotation of the rotating relay coil, that is, the energy received by the load is intermittent, and we find that the energy is interrupted. The angle of the dead zone is very small. In order to solve this problem, after many experiments, we find that the dead zone can be eliminated well and the rotation speed can be reduced by designing the relay coil into the shape of the cross. Therefore, we propose a further optimization design of the coil.
Finally, the main work of this study is summarized, and further research is put forward in view of the problems encountered in the design process.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM724

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