本論文旨在提出ㄧ模糊PID控制器應用於LCC-S補償架構串級Buck-Boost電源轉換器之定電壓輸出電路設計，藉由LCC-S補償架構之二次側串級升-降壓電源轉換器達到升壓與降壓兩種應用之輸出目標，並透過模糊PID控制器使系統變載時自調變PID參數讓系統穩定輸出目標電壓。此研究之動機為觀察升-降壓電源轉換器對於LCC-S補償架構之輸出電壓所造成之影響，藉由升-降壓電源轉換器操作於連續電流及不連續電流模式之等效組抗，分析LCC-S補償架構之定電壓輸出特性受其影響之程度，並繪製特性曲線圖進行說明，另將模糊PID應用於本文之負回授控制取代傳統PID之方式增加系統輸出之穩定性能。本文首先對無線傳能系統、DC-DC電源轉換器及傳統控制方法進行回顧，之後根據選擇之LCC-S補償架構及升-降壓電源轉換器進行特性分析與理論公式推導，接續之章節則根據已推導之理論及控制演算法進行設計，最後利用電腦軟體模擬電路之趨勢並實際建置整體系統進行開迴路及閉迴路變載測試，驗證本文提出之方法具有可行性。

In this thesis, we develop a wireless power transfer (WPT) system with constant output voltage using LCC-S compensation topology. By connecting with buck-boost converter, the output of system has two different applications: increasing the voltage and reducing the voltage. In addition, there is a traditional method of using fuzzy PID controller to replace PID controller in the part of the control system. The purpose of this study is to investigate the effect of continuous current mode (CCM) and discontinuous current mode (DCM) of buck-boost converter on LCC-S compensation topology. In addition to studying the output characteristics of the circuit part, whether the control performance of fuzzy PID controller is better than that of PID controller is also the focus of this article. At the beginning of this article, this paper will introduce the related reference articles of LCC-S compensation topology, DC-DC converter, and traditional control methods. Next, we will introduce the circuit characteristics of LCC-S compensation topology and buck-boost converter in detail and the derivation process of the formula. The next work is to use the formula derived in the previous chapter to design the circuit, and the control algorithm also needs to be carefully designed. At the end of this article, we will conduct experiments on the actual built system to prove that the ideas and design processes proposed in this topic are correct. The experimental results show that when the voltage is increased, the control performance of fuzzy PID controller is better than that of PID controller. However, in the case of reducing the voltage, the control performance of fuzzy PID controller is only slightly better than that of PID controller.

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