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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 王富正(Fu-Cheng Wang) | |
dc.contributor.author | Chih-Chun Ko | en |
dc.contributor.author | 柯致雋 | zh_TW |
dc.date.accessioned | 2021-06-15T06:10:52Z | - |
dc.date.available | 2012-08-18 | |
dc.date.copyright | 2010-08-18 | |
dc.date.issued | 2010 | |
dc.date.submitted | 2010-08-12 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/47654 | - |
dc.description.abstract | 本論文將強韌PID控制應用於一個質子交換膜燃料電池系統。吾人首先利用系統識別,找出燃料電池系統的數學模型;然後設計強韌控制器,調節空氣與氫氣的流量,以達到穩定輸出電壓、減少氫氣消耗與能量消耗的目標;最後則將設計的強韌控制器與周邊元件控制整合於單晶片,達到系統微化的目標。
燃料電池將化學能轉換為電能,內部包含複雜的電化學反應,是一個非線性時變系統。吾人從系統的觀點來看,將其視為一個雙輸入雙輸出系統,其輸入為空氣與氫氣的流量,輸出為燃料電池的電壓與電流;若是接續負載為固定,則可進一步將其簡化為雙輸入單輸出系統。本文以系統識別方法,在各操作點將質子交換膜燃料電池視為雙輸入單輸出之線性系統,而將非模型化之動態視為系統不確定性與外部干擾,並利用強韌控制來達到穩定系統與增進效能之目標。因為一般電器產品都需要穩定的電壓源,所以強韌控制器的設計目標是穩定輸出電壓、減少氫氣的浪費、與得到較好的燃料電池輸出效率。另外,針對業界廣為使用的PID控制器,本文結合強韌控制理論與PID控制的特性,設計強韌PID控制器,以低階的控制器達到預期的控制目標。最後將所設計的強韌PID控制器安裝於單晶片上,實現系統微化的目標。實驗結果顯示,強韌PID控制確實可以增進燃料電池系統穩定性能。 | zh_TW |
dc.description.abstract | This thesis proposes the design and implementation of robust PID controllers for a proton exchange membrane fuel cell (PEMFC) system. First, we model the PEMFC as a multivariable plant by identification techniques. Second, we apply multivariable robust control strategies to stabilize the output voltage, and to improve system performance and efficiencies. Finally, the designed robust PID controllers are implemented on a microcontroller for system miniaturization.
PEMFC systems are nonlinear and time-varying. However, from the system point of view, the dynamics of PEMFC can be represented as a two-input-two-output system, that has inputs of air flow rate and hydrogen flow rate, and outputs of stack voltage and current. By fixing the output resistance, the system can be further reduced to a two-input-single-output system. Because most electrical equipment requires steady voltage supply, we aim to maintain steady output voltage for the PEMFC system. We first identify the models of the PEMFC system at different operating points, and regard the un-modeled dynamics as system uncertainties. Since robust control is well known for its ability to cope with system uncertainties and disturbances, we then design a standard robust controller to improve stability and performance of the PEMFC system. However, the standard robust controller might be too complex for implementation, because the order of the controller is determined by the orders of the plant and weighting functions. On the other hand, PID control has been widely applicable to industrials because of its simple structure, but it lacks stability analysis for systems with uncertainties. Therefore, combining the merits of robust control and PID control, we design robust PID controllers for the PEMFC system. The designed controllers are then implemented on Simulink to experimentally verify the system performance. Lastly, the robust controllers are implemented on a microcontroller unit for system miniaturization. From the results, the proposed robust PID controllers are shown to be effective. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T06:10:52Z (GMT). No. of bitstreams: 1 ntu-99-R97522832-1.pdf: 1566546 bytes, checksum: e38234d6e7891b69fd28623f4d9625bb (MD5) Previous issue date: 2010 | en |
dc.description.tableofcontents | 口試委員會審定書 i
誌謝 I 中文摘要 III Abstract IV 目 錄 VII 圖目錄 XI 表目錄 XIII 符號表 XV 縮寫表 XX 第一章 序論 1 1.1 研究動機 1 1.2 文獻回顧 2 1.3 各章摘要 5 第二章 燃料電池簡介 7 2.1 燃料電池的歷史 7 2.2 燃料電池工作原理 8 2.3 燃料電池的種類與特性 9 2.4 燃料電池的優缺點與特色 12 第三章 質子交換膜燃料電池數學模型之建立 15 3.1 質子交換膜燃料電池的系統架構與工作原理 15 3.1.1 質子交換膜燃料電池的系統架構 15 3.1.2 質子交換膜燃料電池的工作原理 17 3.2 質子交換膜燃料電池的自由能與活化電位 18 3.2.1 理想電位與溫度關係 19 3.2.2 理想電位與氣體壓力的關係 20 3.3 極化現象 22 3.4 燃料電池動態模型 24 3.4.1 動態模型建立的基本假設 24 3.4.2 陰極氣體擴散模型 25 3.4.3 陰極電化學動力模型 26 3.4.4 電池內阻模型 27 第四章 系統描述及識別 31 4.1 實驗設備 31 4.2 系統鑑別原理與方法 36 4.3 部分空間系統識別法 38 4.4 系統識別實驗規劃 42 4.5 系統識別實驗結果 44 第五章 強韌控制理論和設計控制器 47 5.1 範數定義 47 5.1.1 訊號及系統的範數 48 5.2 系統的不確定性 49 5.3 強韌控制架構的一般化 51 5.4 標稱系統的選定 53 5.5 強韌性概念與分析 55 5.6 次最佳化 強韌控制器設計 58 5.7 迴路成型設計 60 5.8 強韌PID控制器設計 64 第六章 強韌控制器的實驗結果與討論 71 6.1 個人電腦線上控制 71 6.1.1 定負載控制電壓實驗 72 6.2 控制器性能比較 78 6.2.1 氫氣使用效率(Hydrogen efficiency) 78 6.2.2 功能效率(Power efficiency) 81 6.3 PI控制 84 6.4 長時間測試 88 6.5 微處理器控制實驗 89 6.6 本章結論 94 第七章 結論與未來展望 95 7.1 結論 95 7.2 未來展望 97 參考文獻 99 附錄A:脈波調變控制(Pulse Width Modulation theory) A-1 附錄B:口試委員問題與回答 B-1 | |
dc.language.iso | zh-TW | |
dc.title | 強韌PID控制器於質子交換膜燃料電池系統之設計及安裝 | zh_TW |
dc.title | Design and Implementation of Robust PID Controllers for a Proton Exchange Membrane Fuel Cell System | en |
dc.type | Thesis | |
dc.date.schoolyear | 98-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 顏家鈺(Jia-Yush Yen),蘇金佳(Chin-Chia Su),蔡宗惠(Tsung-Hui Tsai),呂志誠(Chih-Cheng Lu) | |
dc.subject.keyword | 質子交換膜燃料電池,系統識別,強韌PID控制,強韌控制,氫氣使用效率,功能效率, | zh_TW |
dc.subject.keyword | Proton Exchange Membrane Fuel Cell (PEMFC),System identification,Robust PID,Robust control,Hydrogen efficiency,Power efficiency, | en |
dc.relation.page | 137 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2010-08-13 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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