Fuel sensor-less control of a liquid feed fuel cell under dynamic loading conditions for portable power sources (II)

被引：13

作者：

Chang, C. L. ^{[1
]}

Chen, C. Y. ^{[1
]}

Sung, C. C. ^{[2
]}

Liou, D. H. ^{[1
]}

Chang, C. Y. ^{[1
]}

Cha, H. C. ^{[1
]}

机构：

[1] Inst Nucl Energy Res, Longtan Township 32546, Taoyuan County, Taiwan

[2] Natl Taiwan Univ, Taipei, Taiwan

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 05期

关键词：

Liquid feed fuel cell; Fuel sensor-less control; Direct methanol fuel cell; Methanol crossover; PERFORMANCE; SYSTEM;

D O I：

10.1016/j.jpowsour.2009.09.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This work presents a new fuel sensor-less control scheme for liquid feed fuel cells that is able to control the supply to a fuel cell system for operation under dynamic loading conditions. The control scheme uses cell-operating characteristics. such as potential, current, and power, to regulate the fuel concentration of a liquid feed fuel cell without the need for a fuel concentration sensor. A current integral technique has been developed to calculate the quantity of fuel required at each monitoring cycle, which can be combined with the concentration regulating process to control the fuel supply for stable operation. As verified by systematic experiments, this scheme can effectively control the fuel supply of a liquid feed fuel cell with reduced response time, even under conditions where the membrane electrolyte assembly (MEA) deteriorates gradually. This advance will aid the commercialization of liquid feed fuel cells and make them more adaptable for use in portable and automotive power units such as laptops, e-bikes, and handicap cars. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1427 / 1434

页数：8

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