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研究生： 趙皇源
Huang-Yuan Chao
論文名稱： 質子交換膜燃料電池系統溫度控制
Temperature Control of Proton Exchange Membrane Fuel Cell Stack
指導教授： 周宜雄
Yi-Shyong Chou
口試委員: 錢義隆
I-Lung Chien
錢玉樹
Yu-Shu Chien
王逢盛
Feng-Sheng Wang
學位類別： 碩士
Master
系所名稱： 工程學院 - 化學工程系
Department of Chemical Engineering
論文出版年： 2006
畢業學年度： 94
語文別： 中文
論文頁數： 126
中文關鍵詞： 溫度控制 、質子交換膜燃料電池
外文關鍵詞： Temperature control, Proton exchange membrane fu
相關次數： 點閱：258  下載：0 
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    • 本研究以數值模擬的方式，探討質子交換膜燃料電池起步階段、負載改變階段之動態，發現有一大量電流負載改變時，會使系統電池溫度超過操作溫度範圍且氧氣過量比下降之氧氣枯竭現象；當電池溫度高於操作溫度範圍內時，將造成高分子薄膜脫水、破裂，嚴重將使燃料電池失去效能，且電池溫度對電池操作的持久性、安全及穩定的輸出效率有深厚的影響，因此如何控制系統電池溫度在適當的操作溫度下為一重要的課題；而氧氣枯竭現象將使高分子薄膜損傷，如何避免此現象的發生，也是現今燃料電池控制的重要議題。
    本論文提出兩個控制架構，藉著冷卻水流率控制系統溫度在操作溫度範圍內，分別比較控制效果與韌性；在氧氣枯竭問題，亦提出一控制架構控制氧氣過量比。

    This research, by way of numerical simulation, investigated the dynamics of the start-up, and load changing phase of a proton exchange membrane fuel cell; it is known that when there is a large load current change, the fuel cell system’s temperature will exceed the operating temperature and the occurrence of oxygen starvation phenomena which causes the drop in oxygen excess ratio; when the stack temperature exceed the operating range, membrane dehydration and tearing occurs, in severe cases, the fuel cell become dysfunctional. Moreover, since stack temperature has a great impact fuel cell system on the longevity, safety, output stability, the control of the temperature within the operating range is an important topic; in addition, oxygen depletion will damage the membrane and how to avoid the occurrence of oxygen starvation phenomena is also an important issue in the control of fuel cell.
    Two control structures have been proposed: by manipulating cooling water flow rate to keep the fuel cell system temperature within the operating range; the performance and robustness of the methods are compared. A control structure to control the oxygen excess ratio is also proposed.

    中文摘要 i 英文摘要 ii 誌謝 iii 目錄 iv 圖表索引 vi 第一章 緒論 1-1 前言 1 1-2 燃料電池發展歷史 2 1-3 燃料電池的特點 3 1-4 文獻回顧 4 1-5 研究動機 5 1-6 論文章節組識安排 6 第二章 膜燃料電池 2-1 前言 7 2-2 燃料電池作動原理 8 2-3 燃料電池分類 9 2-4 質子交換膜燃料電池介紹 15 2-4.1 流場板 16 2-4.2 擴散層 18 2-4.3 觸媒層 19 2-4.4 質子交換膜 20 第三章 數學模式的建立 3-1 前言 22 3-2 數學模式假設 24 3-3 極化曲線經驗式 25 3-3-1 活化過電位經驗式 26 3-3.2 歐姆過電位經驗式 28 3-3.3 燃料電池組輸出功率與能量轉化效率 30 3-4 熱傳動態方程 31 3-5 質傳動態方程 33 3-6 冷卻水溫度動態方程 34 第四章 質子交換膜燃料電池之模擬 4-1 前言 35 4-2 數值計算 35 4-2.1 模擬活性過電位 37 4-2.2 極化曲線與熱傳動態方程聯立解 37 4-2.3 極化曲線、熱傳動態及質傳動態方程聯立解 37 4-2.4 使用冷卻水出口溫度動態方程到電池組溫度方程 38 4-3 模擬起動階段、負載改變 39 4-3.1 起動階段 39 4-3.2 負載改變 41 4-4 質子交換膜燃料電池組控制問題 44 4-4.1 前言 44 4-4.2 系統溫度敏感度分析 44 第五章 溫度控制及氧氣過量比控制與討論 5-1 前言 52 5-2 系統模式判別 53 5-3 溫度控制策略 57 5-3.1 控制策略(一)配合傳統控制器控制系統溫度 58 5-3.2 PI控制器控制系統溫度 59 5-3.3 Z-N調諧法之韌性控制 61 5-4 控制策略(二)配合傳統控制器與非線性控制器控制系統溫度 71 5-4.1 傳統控制器回饋控制 73 5-4.2 通用模式控制 77 5-5 比較不同控制策略控制效果 96 5-6 溫度與氧氣過量比同時控制 98 第六章 總結 107 符號說明 108 參考文獻 111 附錄A 總包熱傳係數 114 附錄B 控制器參數調諧方法 119 附錄C 冷卻水出口溫度設定點之預測器 123 附錄D 通用模式控制 124

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