本論文旨在研究無線電能傳輸用之三線圈非對稱型多重感應耦合線圈結構，分析其頻率響應與效率改善之設計。有鑑於目前無線電能傳輸之線圈結構均需要準確對齊，才能達到最佳傳能效率，為了改善線圈位移所造成之效率下降，藉由額外加入一組中繼補償線圈，在傳能線圈錯位情況下，提升電能傳輸效率；再者因次級側接收線圈均安裝於電動車之底盤，且因底盤之面積有限，因此決議在初級側饋電線圈端加入中繼線圈，並且與饋電線圈平貼，藉由分析非對稱線圈補償架構之等效模型推導公式並提出中繼線圈設計流程；藉由多重耦合線圈結構之電路模型加以分析，以驗證本文所提出之提升效率方法。根據SAE J2954感應充電規範下，在頻率區間為81.38 kHz~90 kHz之間，計算出最佳補償電容設計流程，藉由調整系統操作頻率達到最佳傳輸效率。由實驗結果顯示，在橫向與垂直位移實驗中，因位移使得系統傳輸效率下降至80 %時，位移距離分別提升26.3 %與16.7 %；於自調頻部份，當次級側補償電容偏移±1 %條件下，藉由調整系統操作頻率，均可達到效率維持在93 %

This study aims to analyze the frequency response and efficiency improvement design of three-coil asymmetric multiple inductive coupling coil structure for wireless power transmission. In consideration of current wireless power transmission coil structure requiring correct alignment for the optimal power transmission efficiency, an extra relay compensation coil is added to enhance the power transmission efficiency under power transmission coil dislocation so as to improve the efficiency reduction caused by coil displacement. Furthermore, since a secondary receiving coil is generally installed on the chassis of an electric vehicle, where the area is limited, a repeating coil is therefore added at the primary feeder coil end and is flush with the feeder coil. The repeating coil design process is proposed by analyzing the equivalent model derived formula of asymmetric coil compensation structure. The efficiency promotion method proposed in this study is then tested by analyzing the circuit model of multiple coupling coil structure. Under SAE J2954 inductive charging standards, the best compensation capacitor design process is calculated when the frequency separation appears on 81.38 kHz~90 kHz to achieve the optimal transmission efficiency by regulating the system operation frequency. The experimental result reveals that the displacement reduces the system transmission efficiency down to 80 % and the deviation distance respectively enhances 26.3 % and 16.7 % in the lateral and vertical deviation experiment. In regard to the self-regulated frequency, the efficiency could maintain 93 % by regulating the system operation frequency when the secondary compensation capacitor deviates ±1 %.

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