本研究旨在於研究無線電力傳輸之效率，從文獻中整理出影響其效率之因素，並對其進行實驗與探討。一開始先針對無線電力傳輸之應用層面及基礎理論其做一詳細探討，然後討論對於整體電路傳輸效率之重要影響參數，且依循整體電路之傳輸效率做適當之設計。規劃7種不同口徑、長度之繞線架，對不同之一次側、二次側電感繞組進行實驗與分析。首先，對於不同口徑之線圈進行實驗，探究其直徑對於其傳輸效率影響之深淺。第二，針對集膚效應、進接效應進行實驗與討論，瞭解其影響無線電力傳輸效率之輕重。第三，對於二次側線圈不同擺放角度做測試，瞭解其對於無線電力傳輸效率之影響多寡。最後，對於有無鐵磁芯之線圈進行實驗，瞭解其影響效率之多寡。本電路之一次側、二次側均採用串聯諧振結構，並以2.8cm~10cm之氣隙規格進行無線電力傳輸效率測試。藉由以上之實驗與整理，能更清楚瞭解於線圈設計時，需注意之參數，並容易在效率與成本之間做良好選擇。

This study based on the efficiency of wireless power transmission, collect that factors for the efficiency from references, then study for the efficiency. At first the applications and fundamental principles of wireless power transmission systems are studied, then the thesis followed by the discussion of the factors associated with the operating of system. The design of coupling structure is established by the circuit. Planning 7 different diameter, length of the winding frame, for primary, secondary inductor winding experiment and analysis. First, for the coil on different diameter to experiment, to explore the effect on the efficiency by diameter. Second, for the skin effect, proximity effect of the experiment and then discuss, understand these effects on wireless power transmission efficiency. Thirdly, the secondary coils placed in different angles to do the test for the efficiency, to understand the influence on efficiency of wireless power transmission. The primary, secondary circuit use of series resonant structure, and to experiment for the efficiency of wireless power transmission in the gap 2.8cm to 10cm. By these experiments, a better understanding for importance of the parameters on the coil design, and trade off on the efficiency and the cost for the efficiency easily.

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