Input Current-Ripple Reduction of a Pulse-link DC-AC Converter for Fuel Cells

被引：0

作者：

Fukushima, Kentaro ^{[1
]}

Norigoe, Isami ^{[2
]}

Ninomiya, Tamotsu ^{[3
]}

Shoyama, Masahito ^{[1
]}

Harada, Yosuke ^{[2
]}

Tsukakoshi, Kenta ^{[2
]}

机构：

[1] Kyushu Univ, Nishi Ku, 744 Moto Oka, Fukuoka 812, Japan

[2] EBARA DENSAN Ltd, Tokyo, Japan

[3] Nagasaki Univ, Nagasaki, Japan

来源：

INTELEC 08 - 30TH INTERNATIONAL TELECOMMUNICATIONS ENERGY, VOLS 1 AND 2 | 2008年

关键词：

D O I：

暂无

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：

This paper considers that the mechanism of input current-ripple on pulse-link DC-AC converter for fuel cells. And the reduction methods are shown. In general, fuel cells are weak about current ripple. The current-ripple damages to the fuel capacity and fife span because the chemical reaction time when generates electricity is much slower than commercial frequency. Therefore, the input current-ripple reduction is essential factor in the DC-AC converter for fuel cells applications. In the conventional DC-AC converter topology, large smoothing capacitor is worked as the input current-ripple reduction. However, this large capacitor makes it difficult to reduce the size of DC-AC converter unit. Authors have proposed a novel topology called as pulse-link DC-AC converter. In this topology, a large capacitor for the smoothed DC power source is not needed because the first-stage boost converter provides boosted voltage pulse directly to PWM inverter. Instead, a series-connected LC circuit is inserted to reduce the input current-ripple. Furthermore, when duty ratio is controlled by sensing input current, input current-ripple is reduced less than 1 Amp.

引用

页码：543 / +

页数：2

共 6 条

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[3] FUKUSHIMA K, 2007, P ICPE 07, P1066
[4] Fukushima K, 2007, INT TELECOM ENERGY, P904
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