The simulation and control of proton exchange membrane fuel cell
碩士 === 國立臺灣海洋大學 === 輪機工程系 === 96 === In this paper, the mathematical model of the proton exchange membrane fuel cell system is established by combining the simulated formula of its components. The proton exchange membrane fuel cell system modeling requires some coefficients and states which are not...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2008
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| Online Access: | http://ndltd.ncl.edu.tw/handle/47676511008243364866 |
| Summary: | 碩士 === 國立臺灣海洋大學 === 輪機工程系 === 96 === In this paper, the mathematical model of the proton exchange membrane fuel cell system is established by combining the simulated formula of its components. The proton exchange membrane fuel cell system modeling requires some coefficients and states which are not measurable and observable respectively. The modeling matrix deriving from theoretical formula is obtained by existing data and the feedback controller is designed by using linear quadratic regulator optimal control. The errors between the calculated value and actual value of the compressor flow rate, the supply manifold pressure and the PEM fuel cell voltage are used to design the observer.
The PEM fuel cell system control goal is to achieve zero net power error and minimize the gas supply transient response. By using the reduced order observer to reduce the observer error, observer can be used to observe the errors and estimate the unknown states. The simulation feedback control results show that the net power zero error can be achieved to avoid the fuel starvation phenomenon and reduce the starting fuel starvation time. Besides the observation of state errors, the observer can also be used to design the unknown states which are difficult to measure and save the cost of the expensive sensors.
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