本論文主要研製應用於無人搬運車之無線功率傳輸系統，所採用
之架構由三級電路所組成：第一級電路為升壓型主動式功率因數修正
器，將失真電流波形修正為正弦波，改善電源的功率因數與消除輸入
電流諧波；第二級電路為具有同步整流之半橋式串聯諧振轉換器，將
升壓型功率因數修正器之輸出轉換成適合無線功率傳輸電路之輸入
電壓，以降低無線傳輸電路損耗。並利用零電壓切換與同步整流技術
提高轉換效率；第三級電路為串聯-串聯諧振式無線功率傳輸電路，使
用磁場耦合式進行無線能量傳輸，利用變壓器等效模型與耦合電感等
效模型進行分析無線功率傳輸電路之線圈參數，並利用同步整流技術
提高效率。最後設計並實作出一台 1.5 kW 之無線功率傳輸系統，最
高效率可達 85%。

This thesis presents the study and implementation of a wireless power
transfer system with power factor correction. The system is composed of
three-stage circuits. The first-stage circuit is a Boost power factor corrector,
which improves the power factor of the power supply and eliminates input
current harmonics. The second-stage circuit is a half-bridge series resonant
converter with synchronous rectification, which converts the output of the
boost power factor corrector into a suitable input voltage for wireless
power output circuits, and uses zero voltage switching and synchronous
rectification to improve efficiency. The third-stage circuit is a series-series
compensated wireless power transfer (WPT) circuit, which uses magnetic
field coupling for wireless power transmission, the equivalent model of
transformer and coupling inductance to analyze the coils of the WPT, the
secondary side uses synchronous rectification to improve efficiency. Finally, a 1.5 kW wireless power transfer system with 85% maximum efficiency was designed and implemented.

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