本文關鍵詞： 磁耦合諧振 無線電力傳輸 非對稱半橋逆變 ZVS　出處：《山東大學》2014年碩士論文　論文類型：學位論文

【摘要】：近年來,無線電力傳輸技術由于在特殊場合的廣闊應用前景逐漸成為研究熱點。在諸多無線電力傳輸技術中,磁耦合諧振無線電力傳輸技術與電磁感應和微波等方式相比,具有中等傳輸距離、傳輸效率高、對線圈錯位不敏感等明顯優(yōu)勢。磁耦合諧振無線電力傳輸技術現(xiàn)已有諸多相關研究成果,但大都為理論化研究且尚未成熟,距離實際應用還有很多關鍵問題亟待解決,如理論與模型尚不完善、在距離變化和負載變化情況下的性能穩(wěn)定性、對周圍環(huán)境的電磁干擾等。 磁耦合諧振無線電力傳輸系統(tǒng)的傳輸性能,如功率、效率等,會受到諸多因素影響,各因素之間存在復雜的內在聯(lián)系。針對各個因素對系統(tǒng)傳輸性能的影響規(guī)律,以及因素之間的相互關聯(lián)規(guī)律,目前尚未有較為系統(tǒng)的研究成果,本文在建立磁耦合諧振無線電力傳輸系統(tǒng)互感模型的基礎上,深入分析了各因素對系統(tǒng)的影響,為提高系統(tǒng)傳輸性能提供了理論基礎。 本文首先介紹了無線電力傳輸技術,并對比分析了其中的三種常見技術,總結了磁耦合諧振技術目前國內外的發(fā)展現(xiàn)狀。建立了基于耦合模理論與電路理論的系統(tǒng)模型,對磁耦合諧振技術的內在能量傳輸機理進行了深入闡釋,并分析了兩種模型之間的相通性。在電路互感模型基礎上,詳細分析了自諧振頻率、工作頻率、傳輸距離、負載變動等因素對系統(tǒng)的功率與效率的影響。最后,本文采用非對稱半橋逆變電路與矩形傳輸線圈,設計了自諧振頻率約405kHz且能夠工作在ZVS狀態(tài)的無線電力傳輸硬件系統(tǒng),成功點亮了50cm外40W的燈泡。為了驗證理論分析的正確性,本文進行了實驗驗證,實驗結果與理論分析具有較好的一致性。 本文還針對磁耦合諧振技術對障礙物的穿透能力進行了實驗研究,證明了傳輸性能對金屬障礙物質較為敏感；而對非金屬障礙物則具有較強穿透能力,能量傳輸不受其影響。
[Abstract]:In recent years, wireless power transmission technology with wide application in special occasions has become a research hotspot. In many wireless power transmission technology, compared to magnetic resonance coupling wireless power transmission technology with electromagnetic induction and microwave etc., with medium transmission distance, transmission efficiency is high, the coil is not sensitive to misalignment and other obvious advantages. The magnetic coupled resonant wireless power transmission technology has many related research results, but most of theoretical research and practical application of the distance is not yet mature, there are many key problems to be solved, such as the theory and the model is not perfect, the performance stability of distance change and load change, the ambient electromagnetic interference.
The transmission performance of magnetic resonance coupling wireless power transmission system such as power, efficiency, will be affected by many factors, there is complex relation between the various factors. The effects of various factors on the transmission performance of the system, related law and between factors, there is no study systematically, based on the establishment of this magnetic coupled resonant wireless power transmission system of transformer model, in-depth analysis of the influence of various factors on the system, provides a theoretical basis for improving the transmission performance of the system.
This paper first introduces the wireless power transmission technology, and comparative analysis of three kinds of common techniques, summarizes the current development status of coupled magnetic resonance technology at home and abroad. The system model is established by coupling mode theory and circuit theory based on the internal energy transfer mechanism of coupled magnetic resonance technology in-depth interpretation, and analysis similarities between the two models. Based on the circuit transformer model, detailed analysis of the self resonant frequency, frequency, transmission distance, influence power and efficiency of load changes and other factors on the system. Finally, this paper uses the asymmetric half bridge inverter circuit with rectangular transmission coil, design a wireless power transmission system hardware self resonant the frequency of about 405kHz and can work in the ZVS state, 50cm 40W successfully lit the lamp. In order to verify the correctness of theoretical analysis, this paper conducts an experiment, experimental results The results are in good agreement with the theoretical analysis.
In addition, the transmission capability of magnetic coupling resonance technology for obstacle is studied in this paper. It is proved that the transmission performance is more sensitive to metal obstacle material, while the non-metallic obstacle has strong penetration ability, and the energy transmission is not affected by it.

【學位授予單位】：山東大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM724

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