本文旨在研製多環交疊型感應耦合結構於非接觸式電動車充電平台，其特點為將多個環形線圈以交疊的方式繞製成初級側平台，可於較少磁通抵消程度下而有效改善磁通的分佈，使得充電平台可提供均勻磁場，增加可充電之區域，並於初、次級側皆適當的加入鐵芯，提高電動車對感應充電平台的間距與錯位容忍度。文中使用有限元素模擬軟體Maxwell輔助設計感應耦合結構，依據模擬結果選用合適的結構繞製方式，並以耦合係數、未補償電能拾取功率與鐵芯利用率設計耦合結構線圈參數與初、次級側鐵芯的使用，提升整體電能傳輸效率。最後經實驗驗證，充電平台於氣隙11 cm下其電能傳輸效率約為86.5%，且在平台相對最差錯位下效率為70.4%，最大傳輸功率為3.3 kW。

This thesis aims to study on overlapped multi-ring inductive coupled structure for contactless EV charging platform. The primary which comprised by several coil rings through overlapping wounded is proposed for improving the distribution of flux with lower flux counteraction. Therefore, the charging platform could provide the uniform magnetic field which extend charging zone. Both of primary and secondary with suitable ferrite for flux guidance to have good tolerance to air gap and misalignment. Finite-element analysis modeling Maxwell is used to aided design inductive coupled structure. Depending on the simulation results, the appropriate way of wound structure was chosen, designing specification of coupled structure coil by couple coefficient, pick-up uncompensated power and utilization of ferrite. Finally, the experimental verification, the transmission efficiency is about 86.5% with an 11 cm air gap and 70.4% with relatively worst position of platform. The highest power of load is 3.3 kW.

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