||Study on Dual-Ring Coaxial Type Coupled Structure with Inductive and Capacitive Combined Wireless Power Transfer
||Department of Electrical Engineering
wireless power transfer
dual-ring coaxial type
inductive and capacitive combined
本論文旨就結合感應式與電容式無線電能傳輸技術，提出一對稱雙環同軸型線圈耦合結構，輔以電磁場模擬軟體分析饋電側與受電側間耦合情況，決定較為適當的耦合結構並進行數學建模。利用30 kHz電源驅動內、外環線圈，發射磁場進行感應式電能傳輸；利用300 kHz電源載於耦合結構的內、外環間，於相對應的環間產生位移電流，進行電容式電能傳輸。考量系統複雜性與效率，採用串聯-串聯諧振架構與雙邊L型LC補償電路。傳輸距離為6公分並且精準對位時，整體系統最大傳輸功率為76.26 W，最大傳輸效率為62.2%，並且當感應式與電容式同時存在時，可以容許整體結構尺寸之33%水平偏移並且維持約60%的傳輸效率。
This thesis is aimed at the combination of inductive and capacitive power transfer. A symmetrical coaxial dual-ring type coupled structure was proposed. Electromagnetic field simulation software was used to determine the more appropriate structure and analyze the coupling between TX and RX. Moreover, the mathematical model was constructed. The inner and outer coils were driven by 30 kHz power source for inductive power transmission. At the same time, 300 kHz power source was carried between the inner and outer coils to generate displacement current for capacitive power transmission. Considering the complexity and efficiency of the system, series-series resonance circuits and L-shaped double-sided LC compensation circuits were used. When the transmission distance is 6 cm and well-alignmented, the maximum transmission power of the overall system is 76.26 W and the maximum transmission efficiency is 62.2%. Furthermore, the efficiency can be maintained about 60% with horizontal misalignment 33% of the overall structure size.
第一章 緒論 1
1-1 研究動機與目的 1
1-2 研究背景 2
1-3 研究方法 7
1-4 論文大綱 8
第二章 非接觸式電能傳輸原理與特性 9
2-1 前言 9
2-2 電磁感應基本原理 9
2-3 感應線圈之非理想效應 13
2-3-1 集膚效應 13
2-3-2 近接效應 16
2-4 感應耦合結構等效模型 17
2-5 非接觸式感應耦合架構分析 21
2-5-1 雙線圈式感應耦合架構 21
2-5-2 三線圈式共振耦合架構 23
2-5-3 四線圈式感應耦合架構 24
2-6 電容式耦合架構 25
2-7 系統整體架構 27
第三章 混合式耦合結構分析與研製 28
3-1 前言 28
3-2 激勵電源架構 28
3-3 混合式等效電路模型分析 30
3-3-1 饋電側諧振分析 30
3-3-2 受電側諧振分析 33
3-3-3 傳輸效率與功率分析 37
3-4 感應耦合結構模擬與分析 41
3-5 線材選擇與線圈繞製 44
第四章 非接觸式電能傳輸系統硬體電路 46
4-1 前言 46
4-2 系統整體電路架構 46
4-3 饋電側電路架構 47
4-3-1 全橋諧振變流器分析 47
4-3-2 全橋諧振變流器驅動電路 54
4-4 受電側電路架構 56
4-5 混合式非接觸電能傳輸系統設計流程 57
第五章 系統模擬與實驗結果 60
5-1 前言 60
5-2 混合式結構電能傳輸架模擬 60
5-3 系統參數與硬體電路 65
5-4 實驗波形量測 68
5-5 實驗數據結果與討論 71
第六章 結論與進一步研究方向 77
6-1 結論 77
6-2 進一步研究方向 78
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