A Developed Asymmetric Multilevel Inverter with Lower Number of Components

Document Type : Research Article


1 Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran

2 Smart Distribution Grid Research Lab., Electrical Engineering Department, Azarbaijan Shahid Madani University, Tabriz, Iran

3 Young Researchers and Elite club, Tabriz Branch, Islamic Azad University, Tabriz, Iran

4 Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran .Engineering Faculty, Near East University, 99138 Nicosia, North Cyprus, Mersin 10, Turkey


In this paper, a new configuration for symmetrical and asymmetrical multilevel inverters is proposed. In asymmetric mode, different algorithms are suggested in order to determine the magnitudes of DC voltage sources. The merit of this topology to the conventional symmetric and asymmetric inverters is verified by the provided comparisons. This topology uses a lower number of power electronic devices such as switches, IGBTs, diodes, related gate driver circuits and DC voltage sources. Owing the lower amount of requirements, it has lower total costs and needs less installation area. Also the control strategy has less complexity. The proposed converter can generate all the desired output voltage levels with positive and negative values. To confirm the practicability of the proposed inverter, simulation and experimental results are provided which are in good agreements.


Main Subjects

[1] M.R. Banaei, M.J. Oskuee, F.M. Kazemi, A new advanced topology of stacked multicell inverter, International Journal of Emerging Electric Power Systems, 15(4) (2014) 327-333.
[2] M.R.J. Oskuee, M. Karimi, S.N. Ravadanegh, G.B. Gharehpetian, An innovative scheme of symmetric multilevel voltage source inverter with lower number of circuit devices, IEEE Transactions on Industrial Electronics, 62(11) (2015) 6965-6973.
[3] E. Babaei, S. Alilu, S. Laali, A new general topology for cascaded multilevel inverters with reduced number of components based on developed H-bridge, IEEE Transactions on Industrial Electronics, 61(8) (2014) 3932-3939.
[4] A. Ajami, M.R.J. Oskuee, M.T. Khosroshahi, A. Mokhberdoran, Cascade-multi-cell multilevel converter with reduced number of switches, IET Power Electronics, 7(3) (2014) 552-558.
[5] M.R. Banaei, M.R.J. Oskuee, F.M. Kazemi, Series H-bridge with stacked multicell inverter to quadruplicate voltage levels, IET Power Electronics, 6(5) (2013) 878-884.
[6] S. Das, G. Narayanan, M. Pandey, Space-vector-based hybrid pulsewidth modulation techniques for a three-level inverter, IEEE transactions on power electronics, 29(9) (2014) 4580-4591.
[7] E. Deepak, C. Anil, S. Sanjay, C. Febi, K. Sajina, A novel multilevel inverter topology based on multi-winding multi-tapped transformers for improved wave shape requirements, in: Power Electronics (IICPE), 2010 India International Conference on, IEEE, 2011, pp. 1-5.
[8] S. Kouro, M. Malinowski, K. Gopakumar, J. Pou, L.G. Franquelo, B. Wu, J. Rodriguez, M.A. Pérez, J.I. Leon, Recent advances and industrial applications of multilevel converters, IEEE Transactions on industrial electronics, 57(8) (2010) 2553-2580.
[9] S. Laali, K. Abbaszadeh, H. Lesani, A new algorithm to determine the magnitudes of dc voltage sources in asymmetric cascaded multilevel converters capable of using charge balance control methods, in: Electrical Machines and Systems (ICEMS), 2010 International Conference on, IEEE, 2010, pp. 56-61.
[10] E. Babaei, S. Hosseini, G. Gharehpetian, M.T. Haque, M. Sabahi, Reduction of dc voltage sources and switches in asymmetrical multilevel converters using a novel topology, Electric Power Systems Research, 77(8) (2007) 1073-1085.
[11] S.H. Hosseini, S.N. Ravadanegh, M. Karimi, Y. Naderi, M.R.J. Oskuee, A new scheme of symmetric multilevel inverter with reduced number of circuit devices, in: Electrical and Electronics Engineering (ELECO), 2015 9th International Conference on, IEEE, 2015, pp. 1072-1078.
[12] M.R.J. Oskuee, M. Karimi, Y. Naderi, S.N. Ravadanegh, S.H. Hosseini, A new multilevel voltage source inverter configuration with minimum number of circuit elements, Journal of Central South University, 24(4) (2017) 912-920.
[13] Y. Hinago, H. Koizumi, A single-phase multilevel inverter using switched series/parallel dc voltage sources, IEEE transactions on industrial electronics, 57(8) (2010) 2643-2650.
[14] M.R. Banaei, M.R.J. Oskuee, H. Khounjahan, Reconfiguration of semi-cascaded multilevel inverter to improve systems performance parameters, IET Power Electronics, 7(5) (2014) 1106-1112.
[15] M.F. Kangarlu, E. Babaei, Cross-switched multilevel inverter: an innovative topology, IET power electronics, 6(4) (2013) 642-651.
[16] Y. Naderi, S.H. Hosseini, S.G. Zadeh, B. Mohammadi-Ivatloo, M. Savaghebi, J.M. Guerrero, An optimized direct control method applied to multilevel inverter for microgrid power quality enhancement, International Journal of Electrical Power & Energy Systems, 107 (2019) 496-506.
[17] E. Babaei, Optimal topologies for cascaded sub-multilevel converters, Journal of Power Electronics, 10(3) (2010) 251-261.
[18] Y. Naderi, S.H. Hosseini, A. Mahari, R. Naderi, A new strategy for harmonic minimization based on triple switching of multilevel converters, in: Electrical Engineering (ICEE), 2013 21st Iranian Conference on, IEEE, 2013, pp. 1-6.
[19] M.T. Hagh, H. Taghizadeh, K. Razi, Harmonic minimization in multilevel inverters using modified species-based particle swarm optimization, IEEE Transactions on Power Electronics, 24(10) (2009) 2259-2267.
[20] Y. Liu, H. Hong, A.Q. Huang, Real-time calculation of switching angles minimizing THD for multilevel inverters with step modulation, IEEE Transactions on Industrial Electronics, 56(2) (2009) 285-293.
[21] V. Naumanen, J. Luukko, P. Silventoinen, J. Pyrhönen, H. Saren, K. Rauma, Compensation of DC link voltage variation of a multilevel series-connected H-bridge inverter, IET power electronics, 3(5) (2010) 793-803.
[22] S. Lu, S. Mariéthoz, K.A. Corzine, Asymmetrical cascade multilevel converters with noninteger or dynamically changing dc voltage ratios: Concepts and modulation techniques, IEEE Transactions on Industrial Electronics, 57(7) (2010) 2411-2418.
[23] D.C. Ludois, J.K. Reed, G. Venkataramanan, Hierarchical control of bridge-of-bridge multilevel power converters, IEEE Transactions on Industrial Electronics, 57(8) (2010) 2679-2690.