Modified Multilevel Inverters Using Series and Parallel Connection of DC Voltage Sources

In this paper, two new topologies of multilevel inverters based on the series and parallel connection of dc voltage sources are proposed. The optimal topologies with minimum number of switches and dc voltage sources are computed to produce the maximum number of output voltage levels with minimum blocked voltage by switches. The proposed topologies are compared with some conventional topologies. The proposed topologies have been verified from viewpoint of the number of switches, number of dc voltage sources and the maximum blocked voltage by switches. Finally, to verify the theoretical issues, the simulation results for single-phase 17-level and 41-level inverters are presented. In addition, the experimental results of a single-phase 17-level inverter are given to prove the correctness operation of the proposed topologies.

[1]  Hirofumi Akagi,et al.  A New Neutral-Point-Clamped PWM Inverter , 1981, IEEE Transactions on Industry Applications.

[2]  N. S. Choi,et al.  A general circuit topology of multilevel inverter , 1991, PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference.

[3]  T.A. Meynard,et al.  Multi-level conversion: high voltage choppers and voltage-source inverters , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[4]  Fang Zheng Peng,et al.  A multilevel voltage-source inverter with separate DC sources for static VAr generation , 1995, IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting.

[5]  P. W. Hammond,et al.  A new approach to enhance power quality for medium voltage AC drives , 1997 .

[6]  Keith Corzine,et al.  Control of cascaded multi-level inverters , 2003, IEEE International Electric Machines and Drives Conference, 2003. IEMDC'03..

[7]  S.B. Leeb,et al.  A multilevel inverter topology for inductively-coupled power transfer , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[8]  Keith Corzine,et al.  A cascaded multi-level H-bridge inverter utilizing capacitor voltages sources , 2003 .

[9]  J. Chiasson,et al.  A cascade multilevel inverter using a single DC source , 2006, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[10]  L.M. Tolbert,et al.  Capacitor Voltage Control in a Cascaded Multilevel Inverter as a Static Var Generator , 2006, 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference.

[11]  S. J. Watkins,et al.  Capacitor voltage balancing in multilevel flying capacitor inverters by rule-based switching pattern selection , 2007 .

[12]  E. Babaei,et al.  A Cascade Multilevel Converter Topology With Reduced Number of Switches , 2008, IEEE Transactions on Power Electronics.

[13]  Ebrahim Babaei,et al.  New cascaded multilevel inverter topology with minimum number of switches , 2009 .

[14]  Hirotaka Koizumi,et al.  A Single-Phase Multilevel Inverter Using Switched Series/Parallel DC Voltage Sources , 2009, IEEE Transactions on Industrial Electronics.

[15]  L.M. Tolbert,et al.  Fundamental Frequency Switching Strategies of a Seven-Level Hybrid Cascaded H-Bridge Multilevel Inverter , 2009, IEEE Transactions on Power Electronics.

[16]  E. Babaei.  OPTIMAL TOPOLOGIES FOR CASCADED SUB-MULTILEVEL CONVERTERS , 2010 .

[17]  G. B. Gharehpetian,et al.  A New Topology of Cascaded Multilevel Converters With Reduced Number of Components for High-Voltage Applications , 2011, IEEE Transactions on Power Electronics.

[18]  Mohamed El Hachemi Benbouzid,et al.  A Comparison of Symmetrical and Asymmetrical Three-Phase H-Bridge Multilevel Inverter for DTC Induction Motor Drives , 2011, IEEE Transactions on Energy Conversion.

[19]  Ebrahim Babaei,et al.  A New Multilevel Converter Topology With Reduced Number of Power Electronic Components , 2012, IEEE Transactions on Industrial Electronics.

[20]  Hirotaka Koizumi,et al.  A Switched-Capacitor Inverter Using Series/Parallel Conversion With Inductive Load , 2012, IEEE Transactions on Industrial Electronics.