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  • 學位論文

小功率質子交換膜燃料電池之系統識別

System Identification of Small-power Proton Exchange Membrane Fuel Cell System

指導教授 : 陽毅平

摘要


本論文根據燃料電池之電化學反應動態模型,將一小功率的燃料電池簡化為一多輸入、多輸出之藕和系統。在不同的操作點,以疑似白色二值信號為輸入,使用線性迴歸模型對系統進行識別,嚐試使用固定參數模型,以及運用最小平方法所得的時變參數模型,以期找出能描述燃料電池系統動態的模型。 識別結果發現,使用固定參數並無法合宜描述系統動態,而以最小平方法所計算出的時變參數模型可以精準地描述系統動態。並且證實了系統動態在35至45度間變化非常小。同時發現當氫氣化學劑量超過1.2時,快速的改變氫氣流量,對燃料電池系統的電壓及電流並不造成影響。

並列摘要


Based on electro-chemical reactions, the small-power fuel cell system is simplified as a coupled multi-input and multi-output system. Utilizing the pseudo random binary sequence as the input and ARMAX as the model, system identification is performed at different operating points. Both fixed-valued parameters and time-varying parameters are used in ARMAX in order to find a suitable model. According to the identification result, ARMAX models with fixed-valued parameters can not describe the system dynamics suitably, while models with time-varying parameters can. System dynamics are also proven to be insensitive to temperature changes between 35 and 45°C. It is also shown that when the hydrogen stoichiometry is over 1.2, fast changes of the hydrogen flow rate does no influence on the fuel cell system performance.

參考文獻


[40] 馬英暐,「適應控制在質子交換膜燃料電池上的應用」,國立台灣大學機械工學系碩士論文,2006.
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[2] P. Grimes, “Historical Pathways for Fuel Cells”, Aerospace and Electronic Systems Magazine, IEEE, Vol.15, Dec. 2000, pp.7-10.
[3] M. L. Wald, “Questions about a Hydrogen Economy,” Scientific American, May 2004, pp.66-73.
[4] A. T-Raissi, D. L. Block, “Hydrogen: Automotive Fuel of the Future,” , Power & Energy Magazine, IEEE, Vol.2, Nov. 2004, pp.40-45

被引用紀錄


Liu, Y. M. (2010). 模糊邏輯應用於質子交換膜燃料電池之溫度控制 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2010.01136
徐茂恩(2009)。質子交換膜燃料電池之應用田口工程實驗設計法進行參數最佳化選取〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2009.10382
侯政杭(2009)。質子交換膜燃料電池於陽極端開放模式之系統識別〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2009.10381

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