A Single-Stage Fuel Cell Energy System Based on a Buck-Boost Inverter with a Backup Energy Storage Unit

被引：52
作者：
Jang, Minsoo [1 ]
Ciobotaru, Mihai [1 ]
Agelidis, Vassilios G. [1 ]
机构：
[1] Univ New S Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2012年 / 27卷 / 06期
关键词：
Buck-boost inverter; fuel cell; fuel cell power conditioning system; POWER; CONVERTER; DESIGN;
D O I：
10.1109/TPEL.2011.2177995
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：
An energy system powered by a low-voltage fuel cell (FC) is conditioned to generate higher-voltage regulated ac voltage. The power conditioning system typically requires two power stages: a boost stage and an inversion stage. In this paper, the buck-boost inverter topology that achieves both boosting and inversion functions in a single stage is used as a building block to develop a single-phase FC-based energy system that offers high conversion efficiency, low-cost and compactness. The proposed system incorporates a backup energy storage unit to support the slow dynamics of the FC. The single-phase buck-boost inverter is voltage-mode controlled and the backup unit is current-mode controlled. The low-frequency current ripple is supplied by the backup unit that minimizes the detrimental effects of such ripple being drawn directly from the FC itself. Experimental results from a 1-kW prototype operating at 20 kHz are presented to validate the analysis and performance of the proposed system.
引用
收藏
页码：2825 / 2834
页数：10
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