Power Electronic Handbook P6

Introduction Multilevel Voltage Source Modulation Fundamental Multilevel Converter Topologies Diode-Clamped Multilevel Converters • Flying-Capacitor Multilevel Converters • Cascaded H-Bridge Multilevel Converters • Multilevel H-Bridge Converters 6.4 6.5 6.6 Cascaded Multilevel Converter Topologies Cascaded Multilevel Converters • Cascaded Multilevel H-Bridge Converters Multilevel Converter Laboratory Examples Three-Level Diode-Clamped Inverter • The Cascade-3/2 Inverter • The Cascade-5/3H Inverter Conclusion 6.1 Introduction Multilevel power conversion was first introduced 20 years ago [1]. The general concept involves utilizing a higher number of active semiconductor switches to perform the power conversion in small voltage steps. There are several advantages to this approach when compared with traditional (two-level) power conversion. The smaller voltage steps lead to...