A primary-switched line-side converter using zero-voltage switching

被引：0
|
作者：
Kjær, PC
Norrga, S
Östlund, S
机构：
[1] ABB Corp Res, Dept Power Engn, S-72178 Vasteras, Sweden
[2] Royal Inst Technol, Dept Elect Machines & Power Elect, S-10044 Stockholm, Sweden
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2001年 / 37卷 / 06期
关键词：
AC-DC converter; line-side power conversion; medium-frequency transformer; railway propulsion;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new primary-switched ac/dc converter and its modulation are presented. It employs a single- or three-phase transformer, with a matrix converter (primary) and a conventional two-level converter (secondary). This allows galvanic isolation at medium-frequency zero-voltage primary commutation and five line-side voltage levels. Two distinct modulation methods are explained in detail, and it is shown how a combination of these allows optimal operation in terms of efficiency and voltage harmonics. Measured waveforms on a 30-kW prototype confirm the expected performance.
引用
收藏
页码：1824 / 1831
页数：8
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