A bidirectional soft switched ultracapacitor interface circuit for hybrid electric vehicles

被引：47

作者：

Farzanehfard, Hosein ^{[1
]}

Beyragh, Dawood Shekari ^{[1
]}

Adib, Ehsan ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Elect & Comp Engn, Esfahan 84156, Iran

来源：

ENERGY CONVERSION AND MANAGEMENT | 2008年 / 49卷 / 12期

关键词：

Hybrid electric vehicle; Ultracapacitor; Soft switching; Buck-and-boost converter;

D O I：

10.1016/j.enconman.2008.07.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Ultracapacitors are used as auxiliary elements beside batteries to increase peak power capability and battery life in hybrid electric vehicles. In such a configuration, a bidirectional high efficiency converter is required as an interface between ultracapacitors and batteries. Since the voltage level of ultracapacitors and batteries are different, the interface must be able to increase or decrease the voltage level in each power flow direction while limiting the current. This paper presents a zero voltage transition (ZVT) buck-and-boost converter for ultracapacitors interface. All the switches in the proposed converter are soft switched to reduce switching losses and increase efficiency. The converter operational modes are analyzed and its performance is discussed. Finally, the experimental results from a 150 W laboratory prototype are presented which justify the theoretical analysis. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：3578 / 3584

页数：7

共 9 条

[1] Overview of power management in hybrid electric vehicles [J].