Cross-switched multilevel inverter: an innovative topology

Multilevel inverters have attractive features which make them one of the most popular fields of investigations. They can operate in high power and high voltage conditions. Multilevel inverters generate output voltage with high quality and low harmonic contents. As the number of output voltage levels increases, the quality of the output voltage is improved leading to reduction of the filtering requirements. However, multilevel inverters have the disadvantage of increased power electronic switches. This leads to higher cost, size and complication. Some advanced topologies have been introduced to reduce the number of power electronic switches, unfortunately, most of these topologies need high voltage switches on their structure making them unsuitable for high voltage conditions. In this study, an innovative topology for multilevel inverter is proposed which reduces the number of switches considerably without using high voltage switches. The proposed topology is a general topology which can be extended for any number of voltage levels. The authors call this topology as cross-switched multilevel inverter. The simulation results obtained in PSCAD/EMTDC as well as the experimental results verify the proposed topology.

[1]  Seyed Hossein Hosseini,et al.  Double Flying Capacitor Multicell Converter Based on Modified Phase-Shifted Pulsewidth Modulation , 2010, IEEE Transactions on Power Electronics.

[2]  L.G. Franquelo,et al.  The age of multilevel converters arrives , 2008, IEEE Industrial Electronics Magazine.

[3]  Y. Lai,et al.  Topology for hybrid multilevel inverter , 2002 .

[4]  Georgios Konstantinou,et al.  Generalisation of flying capacitor-based active-neutralpoint- clamped multilevel converter using voltage-level modulation , 2012 .

[5]  Cassiano Rech,et al.  Comparison of Neutral-Point-Clamped, Symmetrical, and Hybrid Asymmetrical Multilevel Inverters , 2010, IEEE Transactions on Industrial Electronics.

[6]  Alfred Rufer,et al.  The Common Cross-Connected Stage for the 5L ANPC Medium Voltage Multilevel Inverter , 2010, IEEE Transactions on Industrial Electronics.

[7]  Ebrahim Babaei,et al.  Symmetric multilevel inverter with reduced components based on non-insulated dc voltage sources , 2012 .

[8]  Marcelo A. Pérez,et al.  Multilevel Converters: An Enabling Technology for High-Power Applications , 2009, Proceedings of the IEEE.

[9]  D.G. Holmes,et al.  Analytical Modelling of Voltage Balance Dynamics for a Flying Capacitor Multilevel Converter , 2008, IEEE Transactions on Power Electronics.

[10]  Guillaume Gateau,et al.  New Active Stacked NPC Multilevel Converter: Operation and Features , 2010, IEEE Transactions on Industrial Electronics.

[11]  K. Gopakumar,et al.  Asymmetric Multilevel Converter for High Resolution Voltage Phasor Generation , 1999 .

[12]  J. Pontt,et al.  High-Power Machine Drive, Using Nonredundant 27-Level Inverters and Active Front End Rectifiers , 2007, IEEE Transactions on Power Electronics.

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

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

[15]  H. Akagi,et al.  Control and Experiment of Pulsewidth-Modulated Modular Multilevel Converters , 2009, IEEE Transactions on Power Electronics.

[16]  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.

[17]  Mariusz Malinowski,et al.  A Survey on Cascaded Multilevel Inverters , 2010, IEEE Transactions on Industrial Electronics.

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

[19]  Bin Wu,et al.  Recent Advances and Industrial Applications of Multilevel Converters , 2010, IEEE Transactions on Industrial Electronics.

[20]  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.

[21]  T Chaudhuri,et al.  Modeling and Control of the Cross-Connected Intermediate-Level Voltage Source Inverter , 2010, IEEE Transactions on Industrial Electronics.

[22]  Pablo Lezana,et al.  Hybrid Multicell Converter: Topology and Modulation , 2011, IEEE Transactions on Industrial Electronics.

[23]  A Ghosh,et al.  A Hybrid Cascade Converter Topology With Series-Connected Symmetrical and Asymmetrical Diode-Clamped H-Bridge Cells , 2009, IEEE Transactions on Power Electronics.

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

[25]  A. Bakhshai,et al.  A Simple Voltage Balancing Scheme for m-Level Diode-Clamped Multilevel Converters Based on a Generalized Current Flow Model , 2008, IEEE Transactions on Power Electronics.

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