A new cascaded multilevel inverter with reduced number of switches

This paper propose a new topology for cascaded multilevel inverters. This structure consists of series connection of proposed basic unit blocks which are built with both unidirectional and bidirectional switches. The proposed structure has some advantages including: reduction in the number of switches and driver circuits, cost and installation area. Three algorithms for determination of dc voltage sources' magnitudes have also been proposed. The algorithms can produce all odd and even levels at the output voltage. The proposed structure also has fewer dc voltage sources variety and less maximum blocking voltage of switches compared to conventional inverters. The capability of proposed structure in producing all odd and even output voltage levels is proved by simulation result for a 21-level inverter.

[1]  Saad Mekhilef,et al.  Novel Vector Control Method for Three-Stage Hybrid Cascaded Multilevel Inverter , 2011, IEEE Transactions on Industrial Electronics.

[2]  S. Umashankar,et al.  Cascaded seven level inverter with reduced number of switches using level shifting PWM technique , 2013, 2013 International Conference on Power, Energy and Control (ICPEC).

[3]  M. Marchesoni,et al.  A non conventional power converter for plasma stabilization , 1988, PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference.

[4]  Seyed Hossein Hosseini,et al.  New cascaded multilevel inverter topology with reduced number of switches and sources , 2013, 2013 8th International Conference on Electrical and Electronics Engineering (ELECO).

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

[6]  Hirofumi Akagi,et al.  A novel control scheme of a parallel current-controlled PWM inverter , 1992 .

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

[8]  Takao Kawabata,et al.  New configuration of high-power inverter drives , 1996, Proceedings of IEEE International Symposium on Industrial Electronics.

[9]  Ebrahim Babaei,et al.  Asymmetric cascaded multilevel inverter with charge balance control of a low resolution symmetric subsystem , 2010 .

[10]  K. Gopakumar,et al.  Multilevel inverters for low-power application , 2011 .

[11]  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.

[12]  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.

[13]  Udaya K. Madawala,et al.  Cascade multilevel static synchronous compensator configuration for wind farms , 2011 .

[14]  E. Babaei,et al.  A novel structure for multilevel converters , 2005, 2005 International Conference on Electrical Machines and Systems.

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

[16]  L.M. Tolbert,et al.  Active harmonic elimination for multilevel converters , 2006, IEEE Transactions on Power Electronics.

[17]  Ebrahim Babaei,et al.  Reduction of dc voltage sources and switches in asymmetrical multilevel converters using a novel topology , 2007 .

[18]  Fang Zheng Peng,et al.  Multilevel converters-a new breed of power converters , 1995, IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting.

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

[20]  K. Gopakumar,et al.  A High Resolution Multilevel Voltage Space Phasor Generation for an Open-end Winding Induction Motor Drive , 2003 .

[21]  Thierry Meynard,et al.  Multi-Level Choppers for High Voltage Applications , 1992 .

[22]  Hae-Joong Kim,et al.  A multilevel soft-switching inverter with inductor coupling , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[23]  T. Lipo,et al.  Hybrid multilevel power conversion system: a competitive solution for high power applications , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[24]  Fang Zheng Peng,et al.  Multilevel inverters: a survey of topologies, controls, and applications , 2002, IEEE Trans. Ind. Electron..