本論文研製一種專為電動車設計的雙向非接觸式感應充電墊，特別針對電動車長時間停放於公司的情況進行優化，不僅能夠確保在電動車離開前將電池充滿，還能夠在充電過程中提供電能進行調度，實現電能的高效管理和靈活應用。本文首先探討常見激勵電源架構，以雙向全橋電路作為激勵電源，接著以雙埠式網絡分析諧振網絡，針對不同架構之特性進行相互比較，再推導出諧振網絡輸入阻抗與輸出功率公式，最後選擇LCL諧振網絡作為此系統諧振架構，以提升感應電能傳輸能力以及效率。接續設計電壓與電流感測電路，並使用數位訊號處理器撰寫程式實現雙向控制以及定電流充電。感應充電墊系統為對稱結構，因此可直接由電池模組放電，實現反向電能傳輸。最後，實驗測得在輸入100 V電壓、開關頻率85 kHz和間距100 mm的條件下，系統最高能達到33 W的傳輸功率和77%的效率。

This thesis presents a bidirectional contactless inductive charging pad for electric vehicles, optimized for cases where vehicles are parked at a company for extended periods. It ensures that the battery is fully charged before departure and provides energy during the charging process for efficient energy management and flexible application. The study first examines excitation power supply architectures, using a bidirectional full-bridge circuit. It then analyzes resonant networks with a two-port network approach, compares different architectures, and derives formulas for input impedance and output power. The LCL resonant network is chosen for its ability to enhance inductive power transfer and efficiency. Voltage and current sensing circuits are designed, and a digital signal processor is programmed for bidirectional control and constant current charging. The system, featuring a symmetrical structure, allows direct discharge from the battery module for reverse energy transfer. Experimental results show a maximum power transfer of 33 W and an efficiency of 77% with an input voltage of 100 V, switching frequency of 85 kHz, and a gap of 100 mm.

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