發明
中華民國
100124036
I 438458
用於觀測一質子交換膜燃料電池的狀態觀測裝置
義守大學
2014/05/21
燃料電池乃新能源技術中極重要的一環,不僅受全球各國重視,並被科學家們譽為未來的能源之星。燃料電池不單具有高能源效率,且其可應用於電動汽車上,此外其具有低環境汙染及潔能功效,各先進國家無不全力以赴,研究此項技術,顯示燃料電池擁有驚人的市場潛力。 質子交換膜燃料電池在低溫及低壓操作就可獲得很高的電流密度,又其電力輸出快速、控制簡便,故非常適用於汽車之實際電力需求。 本專利係利用李亞普若夫法搭配Grownwall 不等式,針對質子交換膜燃料電池提出一套狀態估測器的設計法則,並實際輔以電腦模擬驗證其成效。 Fuel cells have low emissions and high efficiency in stationary and automotive applications. Moreover, fuel cells are environmentally clean and have very low noise. The main components of a proton exchange membrane (PEM) fuel cell system include the fuel processing unit or the reformer, the fuel cell stack and the power conditioning unit. Due to low working temperature and fast start up, PEM fuel cells are best suited for residential and vehicular applications. In this patent, the state estimator problem of the PEM fuel cell will be considered. A nonlinear state estimator design will be provided to guarantee the error between system state and state estimator will drive to zero with the exponential decay rate. The above design is based on Lyapunov approach and Grownwall-inequality. Finally, an estimate of the guaranteed convergence rate is also derived for such a system.
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