本文選題：磁場耦合諧振 + 無線電能傳輸��； 參考：《山東大學(xué)》2017年碩士論文

【摘要】：隨著科學(xué)技術(shù)的日益進步和經(jīng)濟水平的不斷提高,世界的能源態(tài)勢也隨之發(fā)生了前所未有的變化,電力在能源消費中所占比重與日俱增。對比有線電能傳輸方式,無線電能傳輸技術(shù)的諸多優(yōu)勢使其成為當(dāng)前的研究熱點。磁場耦合諧振方式無線電能傳輸技術(shù)具有傳輸距離適中、傳輸功率較大、魯棒性好、適應(yīng)特殊環(huán)境等優(yōu)點,具有廣闊的應(yīng)用前景。目前該領(lǐng)域已有一些研究成果,但距離實用化仍有一些的距離,尚有部分關(guān)鍵技術(shù)問題尚未解決,亟待研究。本文首先介紹了幾種無線電能傳輸技術(shù),簡單說明了它們的基本結(jié)構(gòu)、傳輸原理和發(fā)展現(xiàn)狀。隨后分析了磁場耦合諧振方式無線電能傳輸技術(shù)的基本耦合原理、研究現(xiàn)狀,說明諧振拓撲結(jié)構(gòu)對無線電能傳輸系統(tǒng)影響密切,然后利用電路理論建立了串聯(lián)-串聯(lián)諧振拓撲結(jié)構(gòu)的無線電能傳輸系統(tǒng)模型,并分析其傳輸特性。該系統(tǒng)在小負載阻值的條件下傳輸功率不高,并不適合應(yīng)用于電池?zé)o線充電系統(tǒng)中。并依此設(shè)計LCC-串聯(lián)諧振拓撲結(jié)構(gòu)的無線電能傳輸系統(tǒng),利用交流阻抗分析法建立無線電能傳輸系統(tǒng)模型,分析其恒壓輸出傳輸特性,在小負載阻值的條件下傳輸功率較高,適合應(yīng)用于電池?zé)o線充電系統(tǒng)中。然后針對磁場耦合諧振方式無線電能傳輸系統(tǒng)的核心環(huán)節(jié)諧振線圈進行分析,利用有限元仿真分析方法仿真當(dāng)諧振線圈的部分參數(shù)發(fā)生變化時,諧振線圈的自感、互感和耦合系數(shù)的變化趨勢,總結(jié)諧振線圈的設(shè)計原則,并以此原則設(shè)計諧振線圈。最后,設(shè)計硬件電路,搭建基于LCC-串聯(lián)諧振拓撲結(jié)構(gòu)的磁場耦合諧振方式無線電能傳輸系統(tǒng)硬件實驗平臺,并進行實驗驗證其傳輸特性。實驗表明本文設(shè)計的基于LCC-串聯(lián)諧振拓撲結(jié)構(gòu)的無線電能傳輸系統(tǒng)硬件實驗平臺可以實現(xiàn)電能的無線傳輸,在85kHz工作頻率、傳輸距離8cm、負載電阻100Ω時,傳輸效率達到95.23%。實驗還分析了硬件實驗平臺的傳輸特性,與理論分析結(jié)果大致吻合。
[Abstract]:With the development of science and technology and the improvement of economic level, the energy situation of the world has changed unprecedented, and the proportion of electricity in energy consumption is increasing day by day. Compared with wired power transmission mode, radio energy transmission technology has become a hot research topic due to its many advantages. The magnetic field coupled resonant radio transmission technology has the advantages of moderate transmission distance, large transmission power, good robustness and adaptability to special environment, so it has a broad application prospect. At present, there are some research achievements in this field, but there is still some distance from practicality, and there are still some key technical problems to be solved, which need to be studied urgently. In this paper, several radio energy transmission technologies are introduced, and their basic structure, transmission principle and development are briefly described. Then, the basic coupling principle of the magnetic field coupled resonant radio energy transmission technology is analyzed, and the current research situation shows that the resonant topology has a close effect on the radio energy transmission system. Based on the circuit theory, the radio energy transmission system model of series-series resonance topology is established and its transmission characteristics are analyzed. The transmission power of the system is not high under the condition of low load resistance, so it is not suitable for the battery wireless charging system. The radio energy transmission system with LCC-series resonant topology is designed. The model of radio energy transmission system is established by using AC impedance analysis method. The transmission characteristics of constant voltage output are analyzed. The transmission power is high under the condition of low load resistance. Suitable for battery wireless charging system. Then the resonance coil of the core link of the magnetic field coupled resonant mode radio energy transmission system is analyzed, and the self-inductance of the resonant coil is simulated by the finite element simulation method when some parameters of the resonant coil change. The design principle of resonant coil is summarized and the resonant coil is designed according to the variation trend of mutual inductance and coupling coefficient. Finally, the hardware circuit is designed, and the hardware experimental platform of magnetic field coupled resonant radio transmission system based on LCC-series resonant topology is built, and its transmission characteristics are verified by experiments. The experiment results show that the wireless energy transmission system based on LCC-series resonant topology can realize wireless transmission of electric energy. The transmission efficiency is 95.23 when the working frequency is 85kHz, the transmission distance is 8 cm, and the load resistance is 100 惟. The transmission characteristics of the hardware experimental platform are also analyzed, which are in good agreement with the theoretical analysis results.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM724

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本文編號：2013532