Symmetrical Hybrid Multilevel DC-AC Converters With Reduced Number of Insulated DC Supplies

被引：118

作者：

Ruiz-Caballero, Domingo A. ^{[1
]}

Ramos-Astudillo, Reynaldo M. ^{[1
]}

Mussa, Samir Ahmad ^{[2
]}

Heldwein, Marcelo Lobo ^{[2
]}

机构：

[1] Pontificia Univ Catolica Valparaiso, Dept Elect Engn, Valparaiso 2241, Chile

[2] Univ Fed Santa Catarina, Power Elect Inst INEP, BR-88040970 Florianopolis, SC, Brazil

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2010年 / 57卷 / 07期

关键词：

DC-AC converters; hybrid inverters; modulation; symmetrical multilevel converters; VOLTAGE-SOURCE; INVERTER; TOPOLOGIES;

D O I：

10.1109/TIE.2009.2036636

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Novel symmetric hybrid multilevel topologies are introduced for both single-and three-phase medium-voltage high-power systems. The topology conception is presented in detail, where a three-level switching cell with low component count, and its modulation pattern give the origin of the proposed converters. Voltage sharing and low output-voltage distortion are achieved. The theoretical frequency spectra are derived. Switching devices are separated into high-and low-frequency devices, generating hybrid converters. Five-level three-phase topologies are generated from only three insulated dc sources, while the number of semiconductors is the same as for the cascaded H bridge. Both simulation and experimental results are provided showing the validity of the analysis.

引用

页码：2307 / 2314

页数：8

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