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標題: | 小尺寸與高效率之無線傳能系統 Miniaturized high efficiency wireless power transfer system |
作者: | Hsiao-Yen Tsao 曹孝嚴 |
指導教授: | 毛紹綱(Shau-Gang Mao) |
關鍵字: | 電場耦合,磁場耦合,錯位排列,金屬背板影響,去耦合匹配電路, electric-coupling,magnetic-coupling,misalignment,backside metallic plate,decoupling matching circuit, |
出版年 : | 2018 |
學位: | 碩士 |
摘要: | 本論文提出一種新型微型化的小尺寸與高效率無線傳能系統,藉由使用電場耦合技術設計的無線傳能元件,可以改善傳能元件錯位排列和鄰近金屬背板的影響。所提出之新型電容式耦合元件是由一平板和開路線圈並接而成,透過模擬和量測結果來分析所提出之元件在阻抗匹配和傳輸效率等特性,以驗證所提出之新架構的特點。在3 mm × 3 mm的尺寸且傳輸距離為3 mm的使用條件下,本論文提出之新型電容式傳能元件的傳輸係數可以達到-21 dB。相較於在3 mm × 3 mm尺寸下的傳統磁耦合的無線傳能元件,可以提升了28.9 dB的傳輸效率;本論文也針對磁場耦合技術提出一種小型化的線圈設計,藉由四層印刷電路板製程實現的電感式線圈,在7 mm × 10 mm的面積與傳輸距離為3 mm的條件下,其傳輸效率可以達到 -8 dB。最後,本論文亦將設計的小型化線圈建構成一多輸入和多輸出的無線傳能系統(Multi-Input Multi-Output Wireless Power Transmission System, MIMO WPT System),並且針對線圈間的互耦干擾問題,提出一個去耦合匹配電路來壓抑鄰近傳能元件之干擾,結果顯示出其隔離度可以達到20 dB且在輸入電壓振幅峰對峰值為10伏特的訊號輸入下,輸出電壓振幅峰對峰值可以達到5.6伏特。 This thesis proposes two novel compact and high efficiency wireless power transmission (WPT) systems. The novel capacitive WPT system using the electric-coupling mechanism is designed and implemented to reduce the misalignment effect and the proximal effect of the backside metallic plate. The proposed structure consisting of a metallic plate and an open-end coil in the parallel connection is employed to construct the WPT system. A good agreement between the simulation and measurement of the proposed WPT system is achieved. At the 3 mm × 3 mm size and 3-mm transmission distance, the proposed WPT system with the single-side matching circuit at the transmitting terminal achieves -21 dB transmission coefficient. Compared to the conventional WPT system using the magnetic-coupling mechanism, the proposed novel capacitive WPT system using the electric-coupling mechanism achieves the 28.9-dB transmission coefficient improvement. By using the four-layer printed-circuit-board process, a novel compact and high efficiency inductive WPT system is designed and implemented. At the 7.6 mm × 10.3 mm size and 3-mm transmission distance, the proposed inductive WPT system achieves – 8 dB power transmission. Finally, the proposed inductive WPT system is utilized to construct the Multi-Input Multi-Output (MIMO) WPT system. To suppress the mutual coupling from the adjacent elements in MIMO WPT system, the decoupling matching circuits are proposed and implemented. The results show that the proposed MIMO inductive WPT system with the decoupling matching circuits achieves the 20 dB isolation and 5.6-Volt Vpp output voltage when the 10 MHz sinusoidal wave with the 10-Volt Vpp is fed. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/78912 |
DOI: | 10.6342/NTU201803964 |
全文授權: | 有償授權 |
電子全文公開日期: | 2028-08-17 |
顯示於系所單位: | 電信工程學研究所 |
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ntu-107-R05942007-1.pdf 目前未授權公開取用 | 5.69 MB | Adobe PDF | 檢視/開啟 |
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