A Ladder Multilevel Inverter Topology with Reduction of On-state Voltage Drop

Year 2013, Volume: 1 Issue: 1, 1 - 9, 31.03.2013

Mohamad Banaeı , Ebrahim Salary Hossein Khounjahan

Abstract

In this paper, a generalized symmetrical multilevelinverter namely ladder multilevel inverter (LMI) is proposed. The LMI can generate DC voltage levels and voltage harmonic similar to other topologies withless number of switches and gate drivers. In addition, as compare to traditional multilevel inverter, LMI has less on-state voltage drop and conduction losses, because three switches are turned on at any given time. The proposed topology results in reduction of installation area and cost and has simplicity of control system. This converter has been used in a dynamic voltage restorer (DVR). The operation and performance of the proposed LMI has been verified by experimental and simulation results. Thesimulation results show its capability in voltage generation and voltage sag compensation.

Keywords

Ladder multilevel inverter, Symmetrical cascade, Reduction of on-state voltage drop

References

• Rodriguez, J., Lai, J.S. , Peng, F.Z., “Multilevel Inverter: A Survey of Topologies, Controls, and applications,” IEEE Trans. On Industrial Electronics, 49(4):724-738, (August 2002).
• Corzine, K. A., Baker, J. R., “Reduced parts- count multilevel rectifiers,” IEEE Trans. Ind. Electron., 49:766–774, (August 2002).
• Lai, J.S., Peng, F.Z., “Multilevel Converters-A New Breed of power Converters,” IEEE Trans. Ind. Appl, 32(3):509 -517, (MAY/JUNE 1996).
• Marchesoni, M., Tenca, P., “Diode-clamped multilevel converters: A practicable way to balance DC-link voltages,” IEEE Tran. Ind. Electron, 49(4):752–765, (August 2002).
• Chen, A., He, X., “Research on hybrid-clamped multilevel-inverter topologies,” IEEE Trans. Ind. Electron, 53(6):1898–1907, (December 2006).
• Bendre, A., Venkataramanan, G., Rosene, D., Srinivasan, V., “Modeling and design of a neutral- point voltage regulator for a three-level diode- clamped inverter using
• multiple-carrier modulation,” IEEE Trans. Ind. Electron., 53(3):718–726, (2006).
• Wilkinson, R. H., Mouton, H. D. T. and Meynard, T. A., “Natural balance of multicell converters,” IEEE-PESC: 1307–1312 (2003). [8] Meynard, T.A., Foch, Conversion: High Voltage Choppers and Voltage- source Inverters,” IEEE Power Electronics Specialist Conference,:397-403, (1992).
• Corzine, K., “Operation and Design of Multilevel Inverters,” Developed for the Office of Naval Research, December 2003.
• Peng, F. Z., McKeever, J. W. , Adams, D. J., Cascade multilevel inverters for utility applications,” IEEE-IECON,:437–442, (1997).
• Babaei, E. , Hosseini, S. H., “New cascaded multilevel inverter topology with minimum number of switches”, Energy Conversion and Management, 50: 2761–2767, (2009).
• Soto D. , Green, T. C., “A comparison of high- power converter topologies for the implementation of FACTS controllers,” IEEE Trans. Ind. Electron., 49(5):1072–1080,(October 2002).
• Barcenas, E., Ramirez, S., Cardenas, V. , Echavarria, R., “Cascaded multilevel inverter with only one dc source,” in Proceeding of VIII IEEE Inter. Tech. Proc. CIEP:171–176, (October 2002).
• Hava, A.M., Kerkman, R.J., Lipo, T.A., “Carrier- based PWM-VSI Overmodulation Strategies: Analysis, Comparison, and Design,” IEEE Transactions on Power Electronics, 13(4):674- 689, (July 1998).
• McGrath B.P. , Holmes, D.G., “Multicarrier PWM Strategies for Multilevel Inverters,” IEEE Trans. Ind. Electron, 49(4):858-867, (August 2002).
• Du, Z., Tolbert, L. M., Ozpineci, B. , Chiasson, J. N., “Fundamental frequency switching strategies of a seven-level hybrid cascaded H-bridge multilevel Electron., 24(1):25–33, (2009). Trans. Power
• Du, Z., Tolbert, L. M., , Chiasson, J. N., “Active harmonic elimination for multilevel converters,” IEEE Trans. Power. Electron. 21(2), 459-469, (2006).
• Banaei, M.R., Hosseini, S.H., Khanmohamadi, Gharehpetian, G.B., “VeriŞcation of a new energy control strategy for dynamic voltage restorer by simulation,” Simulation Modeling Practice and Theory. 14(2):112–125, (2006).
• Haque, M.H., “Compensation of Distribution System Voltage Sag by DVR and D-STATCOM,” PPT 2001.Conf. IEEE Porto Power Tech, Porto Portugal, (2001).
• Visser, A. J., Enslin, J. H. R. , Mouton, H., “Transformer less series sag compensation with a cascaded multilevel inverter,” IEEE Trans. Ind. Electron., 49(4):824–831, (2002).
• Banaei M. R., Salary, E., “New multilevel inverter with reduction of switches and gate driver,” Energy Conversion and Management, 52: 1129–1136, (2011).