Adaptive Controller Design and System Identification for Proton Exchange Membrane Fuel cell
Date Issued
2007
Date
2007
Author(s)
Liu, Zhao-Wei
DOI
zh-TW
Abstract
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.
Subjects
燃料電池
適應控制
系統識別
曲線擬合
fuel cell
adaptive control
identification
curve fitting
Type
thesis
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