本文旨在研製電動車用無線式多環交疊型充電平台，提升電動車對充電平台於間距及水平偏移電能傳輸能力。文中運用環形線圈理論公式模擬分析並搭配Maxwell磁場模擬軟體提出多環交疊型線圈之設計以提供一平面式均勻磁場，並依據模擬結果選用合適的環形線圈參數以及交疊方式，將多個環形線圈擴接繞製成多環交疊型充電平台，接著於次級側加入適當之鐵芯，以提高電動車於充電平台上間距與水平偏移容忍度，並提升整體電能傳輸效率。最後經實驗量測結果，充電平台於氣隙110 mm精準對位下其電能傳輸效率約為87.5%且最大輸出功率為1.1 kW。

This thesis implements and modifies the overlapped multi-ring type wireless charging platform for electric vehicles to improve the transmission efficiency of vertical and horizontal offset.The coupling structure which provides an uniform magnetic field is designed based on the simulated results. Proposed parameters and overlapping mannar of circular coils is chosen from the simulated results. The overlapped multi-ring type charging platform consistes of overlapped multi rings. In addition, adding cores to the secondary side to improve tolerance of vertical and horizontal offset for electric vehicles on the charging platform. Finally, the experimental verification, the transmission efficiency is about 87.5% with an 110 mm air gap. The transmission efficiency is 87.5% when the highest power is 1.1 kW.

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