期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 33, 期 12, 页码 10467-10477出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2018.2801845
关键词
Aerospace electronics; DC-DC power converters; leakage currents; photovoltaic systems
资金
- Ningbo Science and Technology Beauro [2013A31012, 2014A35007]
- European Union/Interreg V-A Germany-Denmark, under PE: Region Project
- European Research Council (ERC) under the European Union's Seventh Framework Program (FP/2007-2013)/ERC Grant [616344-HEART]
- European Union's Seventh Framework Program (FP/2007-2013) ALEA
In the framework of the more electric aircraft, the use of isolated dc-dc power conversion for the electrical power distribution system is one of the most investigated solutions. If the dc-dc converter produces a variable common-mode voltage, the leakage current can flow in the interwinding parasitic capacitance of the high-frequency transformer, leading to insulation deterioration and early failure. This paper proposes to use modified H-bridge structures, already employed in the photovoltaic system for dc-ac power converters, to enable a constant common-mode voltage for isolated dc-dc converters. The analysis shows that this solution can achieve the same efficiency as the conventional one, while simulations and experiments show a strong reduction of the common-mode current flowing through the transformer. A reliability analysis showed that the lifetime of the high-frequency transformer can be extended with the proposed solution.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据