Mass-optimal design methodology for dc-dc converters in low-power portable fuel cell applications

被引:29
作者
Benavides, Nicholas D. [1 ,2 ]
Chapman, Patrick. L. [1 ,2 ]
机构
[1] Univ Illinois, Urbana, IL 61801 USA
[2] SmartSpark Energy Syst Inc, Champaign, IL USA
基金
美国国家科学基金会;
关键词
dc-dc converter; power electronics; energy density; fuel cell; portable power;
D O I
10.1109/TPEL.2008.921101
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Fuel cell systems have not significantly penetrated the low-power (< 50 W) portable energy source market, largely due to complexity of control and the balance-of-plant systems required. Even though the fuel cell and fuel container may scale down well, the pumps, blowers, and power converters required may dominate the system mass. This paper focuses on the tradeoff between efficiency and converter mass, and achieving the design objective of minimum mass of both converter and fuel. The effect of desired run-time, or mission duration, on the optimal dc-dc converter design was explored in detail. The effort focused on boost converters; however, the methodology can be applied to any converter topology. In an example case, at a mission length of 100 h, the optimized convert er saved 91 g of system mass when compared to an off-the-shelf dc-dc converter.
引用
收藏
页码:1545 / 1555
页数:11
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