本文針對磷酸鋰鐵電池進行高頻放電特性之研究，探討磷酸鋰鐵電池搭配高頻轉換器時，不同電流波形及頻率對電池釋出電量的影響。研究內容包括轉換器自電池汲取之電流最常見的三角波、鋸齒波及梯形波。
實驗結果發現在相同平均電流下，操作頻率越高或瞬間電流斜率較大時，會有較大的內損耗。此外，轉換器開關截止時所產生的共振回充電流也會使釋出電量減少。最後本文嘗試以電池等效模型解釋電池釋出電量減少之原因。

This thesis investigates the high frequency discharging characteristics of the lithium iron phosphate battery. The investigation focuses on effects of the high-frequency current on the dischargeable capacity of the battery. Included are the current profiles of triangle, saw-tooth, and trapezoidal waves, which are produced from commonly used DC-DC converters.
Experimental results show that the current with the higher frequency has less dischargeable capacity. On the other hand, the converter current resonating into and out from the battery results the additional losses. The possible reasons that affect the discharged capacities are explained by the equivalent circuit of the battery.

中文摘要 I
英文摘要 II
目錄 III
圖表目錄 V
第一章 緒論 1
1-1 研究背景 1
1-2 研究動機 2
1-3 論文大綱 3
第二章 磷酸鋰鐵電池特性及高頻放電架構 4
2-1 磷酸鋰鐵電池簡介及化學反應 4
2-2 磷酸鋰鐵電池放電特性 6
2-3 高頻放電架構及量測系統 8
2-4 高頻放電電路參數設計 12
2-4-1 三角波放電電路之參數設計 13
2-4-2 梯形波放電電路之參數設計 14
2-4-3 鋸齒波放電電路之參數設計 14
第三章 放電電流頻率對釋出電量之影響 16
3-1 放電電流頻率及頻率間隔選定 16
3-2 三角波 17
3-2-1相同參數升壓轉換器 17
3-2-2相同漣波大小下放電頻率對釋出電量之影響 24
3-3 梯形波 30
3-4 鋸齒波 37
第四章 高頻放電電流波形釋出電量之比較 44
4-1 共振回充電流對電池高頻放電之影響 44
4-1-1 梯形波 44
4-1-2 鋸齒波 48
4-2 操作於相同頻率下不同波形之比較 52
4-2-1 操作於100 kHz下不同波形之比較 52
4-2-2 操作於300 kHz下不同波形之比較 56
4-2-3 操作於500 kHz下不同波形之比較 59
4-3 放電電流頻率及波形對磷酸鋰鐵電池釋出電量影響之探討 63
第五章 結論與未來研究方向 66
參考文獻 68

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