本研究以半橋串聯諧振換流器量測實驗數據，推導感應加熱器線圈盤與負載鍋具的等效電路模型參數。在串聯諧振的架構下，線圈盤擺上不同形狀大小或材質的鍋具後，會改變電路的諧振頻率及電路模型參數。實驗測試七個不同形狀大小與材質的鍋具，分別調整半橋諧振電路的操作頻率，及鍋具與感應線圈盤的擺放相對位置，分析相對位置與操作頻率對電路模型參數的影響。電路模型參數與操作頻率的關係經分析後，可化為以操作頻率為變數的方程式。藉由本論文所提出的等效電路模型，可在設計電路參數時，分析不同鍋具間的差異，並針對特定鍋具設計操作頻率範圍、額定功率等電路參數。最後利用2.5 kW與3.3kW的感應加熱器設計實例，驗證設計流程與等效電路模型。

A half-bridge series resonant inverter is implemented to recognize the parameters of the equivalent circuit model of an induction coil loaded with steel pots for induction cookers. When a steel pot is loaded on the induction coil, the circuit parameters and thus the resonant frequency vary with the shape and material of the pot. The effects of the inverter switching frequency and the position between the pot and the induction coil are analyzed from experimental tests with seven pots of different shapes and materials. Accordingly, the parameters of the equivalent circuit can be expressed as equations with functions of the switching frequency. The derived circuit model can be used for determining the operating ranges of the output power and the switching frequency of the resonant inverter loaded by specified pots with similar operating characteristics. The parameter derivation method to two exemplar design cases of 2.5-kW and 3.3-kW inductor cookers has been validated by experimental tests.

摘要 i
Abstract ii
目錄 iii
圖目錄 v
表目錄 vii
第一章 緒論 1
1-1 研究背景與動機 1
1-2 論文大綱 3
第二章 感應加熱器原理與電路模型 4
2-1 感應加熱原理 4
2-2 等效電路模型 5
2-3 感應加熱器架構 7
第三章 感應加熱器等效電路模型 9
3-1 半橋諧振換流器測試電路 9
3-2 電路模型參數 14
3-3 擺放位置對模型參數影響 17
3-4 電流大小對模型參數影響 21
3-5 操作頻率與模型參數的關係 22
第四章 感應加熱器電路設計 25
4-1 電路設計流程 25
4-2 電路設計實例一 28
4-3 電路設計實例二 34
第五章 結論與未來研究方向 38
5-1 結論 38
5-2 未來研究方向 39
參考文獻 40

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