質子交換膜燃料電池之系統識別與適應控制器設計

Adaptive Controller Design and System Identification for Proton Exchange Membrane Fuel cell

劉兆偉(Zhao-Wei Liu)

指導教授 ： 陽毅平

國立臺灣大學/工學院/機械工程學研究所/碩士(2007年)

https://doi.org/10.6342/NTU.2007.01952

摘要

本篇論文目的主要是利用頻譜分析儀對100W質子交換膜燃料電池系統作SISO的系統識別 (分別是air-pump 對輸出電壓與輸出電流) ，將燃料電池假設為定參數且線性變化之模型，並基於此鑑別出之數學模型做進一步的適應控制器設計。
燃料電池系統本身為一雙輸入雙輸出之系統，故本文將其分解成四個單輸入單輸出之系統，並藉由適應控制原理對其做個別的SISO控制：(1)空氣對輸出電壓、（2）空氣對輸出電流、（3）氫氣對輸出電壓、（4）氫氣對輸出電流。以達到預期所想要的目標。
在達成此SISO控制之後，進一步考慮到氫氣的使用量問題。針對電磁閥的開關特性，利用適應控制法則同時控制電磁閥與空氣泵，做兩個輸入一個輸出的控制 (輸出電壓)，藉此達到輸出電壓之穩定與節省氫氣使用量的功能。

關鍵字

燃料電池 ； 適應控制 ； 系統識別 ； 曲線擬合

並列摘要

The purpose of this thesis is mainly to make identification for SISO of 100W PEM fuel cell system with Dynamic Signal Analyzer (respectively air to output voltage and output current, respectively). The fuel cell system parameters are assumed stationary and the variation of fuel cell is regarded linear. The identified transfer functions are obtained on which the controller design is based.
Fuel cell is a multi-input and multi-output system. This article decomposed the system into four processes, and designed controllers with adaptive control theory, respectively: (1) air to output voltage (2) air flow to output current (3) hydrogen flow to output voltage (4) hydrogen flow to output current.
After fulfilling those goals mentioned above, there is another problem about hydrogen utility rate waiting to be solved. We employ adaptive control law to control solenoid valve and air-pump simultaneously to control output voltage. Further, the goal is to reach the function of stabilizing output voltage and save the hydrogen utility rate.

並列關鍵字

fuel cell ； adaptive control ； identification ； curve fitting

參考文獻

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[2] T-Raissi, A. and Block, D. L. (2004). "Hydrogen: Automotive fuel of the future." IEEE Power and Energy Magazine 2(6): 40-45.

[3] Grimes, P. G. (2000). "Historical pathways for fuel cells: The new electric century." IEEE Aerospace and Electronic Systems Magazine 15(12): 7-10.

[4] Barbir, F. (2005). PEM Fuel Cells.

[5] von Helmolt, R., Eberle, U. (2007). "Fuel cell vehicles： Status 2007." Journal of Power Sources 165(2)： 833-843.