本論文主要為探討切換式電容器應用於11.1 kW的電動車無線功率傳輸系統上，使用數位訊號處理器控制切換式電容器改變其等效電容值，進而改變諧振槽增益使其穩住不同負載下之輸出電壓。本論文根據國際電動車規範(Society of Automotive Engineers, SAE J2954TM )所提出之WPT3/Z2 (功率等級/Z軸規格)架構、介紹其充電盤實作偏移量限制、傳送端(Ground Assembly, GA)線圈、接收端線圈(Vehicle Assembly, VA)之規格與圈數。最後為符合SAE J2954TM所提出之WPT3/Z2規範，諧振槽輸入端最大電流40A與 GA線圈最大電流75A之限制與諧振槽可變元件之電抗限制，將對(Double Side LCC, DS-LCC)諧振式轉換器進行分析與設計。為方便分析將介紹無線功率傳輸之耦合線圈等效電路模型，推導出DS-LCC諧振式轉換器之諧振槽轉移函數，即可繪出不同負載與諧振參數下之輸出電壓，最後根據SAE J2954TM規範所提出之諧振槽可變元件，將提出切換式電容電路介紹其動作原理與控制方法，並將其與DS-LCC諧振式轉換器整合應用。
本論文中將提出一套設計流程，依照此流程進行設計，可確保WPT3/Z2之切換式電容拓撲電路能符合SAE J2954TM所提出之規範，並在指定電路規格限制下之負載與耦合係數內，以固定操作頻率85kHz，可以穩定可靠工作。最後實作出一組11.1 kW無線功率傳輸系統原型機，此原型機在傳送線圈(GA)與接收線圈(VA)在垂直距離相差140 mm至210 mm之間以及X軸偏移量75 mm， Y軸偏移量100 mm時皆能達到輸出規格要求，最高效率為89.4%。

This thesis presents a 11.1 kW WPT with switching controlled capacitor (SCC) topology applied on electric vehicle charging. In order to remain the output power, change the gain of resonant tank by using digital signal processor (DSP) to control the capacitance value of SCC. Based on WPT3/Z2 resonant compensation topology which proposed by Society of Automotive Engineers (SAE J2954TM), introduce the coil size、number of turns, and X-Y-Z axis operating range requirements for ground assemble coil and vehicle assemble coil. Finally, in order to accord with specification of SAE J2954TM, limiting the maximum input current of the resonant tank 40 A, primary coil 75 A and the limitation reactance of resonant tank elements. resonant network will be analyzed and designed. To simplify the equivalent circuit of resonant tank, the equivalent circuit models of loosely coupled coil for WPT will be analyzed and the gain curve of the DS-LCC will be illustrated. Then, the resonant tank variable element proposed according to the SAE J2954TM.This thesis will introduce the operation principle and control method of SCC. In the end, we integrated these into DS-LCC compensation circuit.
In this thesis, a design flow will be proposed, according to the flow which can ensure the circuit can work stably within the constant frequency 85 kHz. Finally, a prototype 11.1 kW WPT system is built and tested. The specifications can be satisfied when the coil is between 140 mm and 210 mm, and the X-axis offset is 75 mm, and the Y-axis offset is 100 mm. The highest efficiency is 89.4%.

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