Implementation & Comparative Analysis of 10, 18 & 24 Level Diode Clamped Inverters Using “Trust Region Dog Leg” Method


Multilevel inverters are used in many industrial applications because of good power quality, minimum losses and less harmonics contents. Multilevel inverters require no series connected synchronized switching devices, transformer and complex filters. In this paper 10, 18, 24 diode clamped multi-level inverters (DCMLI) are implemented using trust region dog leg optimization method to find the optimized values of switching angles (θ). It decreases the total harmonic distortion (THD) of the output voltages and to reduce the complexity of external filter required. The multi-level inverters are implemented in MATLAB Simulation and results are compared in terms of harmonics, system complexity and efficiency.<

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Ali, H. , Qawaqzeh, M. , Abbas, M. and Smadi, T. (2015) Implementation & Comparative Analysis of 10, 18 & 24 Level Diode Clamped Inverters Using “Trust Region Dog Leg” Method. Circuits and Systems, 6, 70-80. doi: 10.4236/cs.2015.63008.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Peddapeli, S.K. (2014) Recent Advances in Pulse Width Modulation Techniques and Multilevel Inverters. International Journal of Electrical, Electronic Science and Engineering, 8, 568-576.
[2] Hussein, H. (2014) Harmonics Elimination PWM (HEPWM). International Journal of Engineering Research and General Science, 2, 172-181.
[3] Satyanarayana, G.V.R. and Ganesh, S.N.V. (2010) Cascaded 5-Level Inverter Type DSTATCOM for Power Quality Improvement. 2010 IEEE Students’ Technology Symposium (TechSym), Kharagpur, 3-4 April 2010, 166-170.
[4] Shukla, A., Ghosh, A. and Joshi, A. (2010) Flying-Capacitor-Based Chopper Circuit for DC Capacitor Voltage Balancing in Diode-Clamped Multilevel Inverter. IEEE Transactions on Industrial Electronics, 57, 2249-2261.
[5] Boora, A.A., Nami, A., Zare, F., Ghosh, A. and Blaabjerg, F. (2010) Voltage-Sharing Converter to Supply Single-Phase Asymmetrical Four-Level Diode-Clamped Inverter with High Power Factor Loads. IEEE Transactions on Power Electronics, 25, 2507-2520.
[6] Cavalcanti, M.C., Farias, A.M., Oliveira, K.C., Neves, F.A. and Afonso, J.L. (2012) Eliminating Leakage Currents in Neutral Point Clamped Inverters for Photovoltaic Systems. IEEE Transactions on Industrial Electronics, 59, 435-443.
[7] Li, J., Liu, J., Boroyevich, D., Mattavelli, P. and Xue, Y. (2011) Comparative Analysis of Three-Level Diode Neural-Point-Clamped and Active Neural-Point-Clamped Zero-Current-Transition Inverters. 2011 IEEE 8th International Conference on Power Electronics and ECCE Asia (ICPE & ECCE), Jeju, 30 May-3 June 2011, 2290-2295.
[8] Du, Z., Tolbert, L.M., Ozpineci, B. and Chiasson, J.N. (2009) Fundamental Frequency Switching Strategies of a Seven-Level Hybrid Cascaded H-Bridge Multilevel Inverter. IEEE Transactions on Power Electronics, 24, 25-33.
[9] Khazraei, M., Sepahvand, H., Corzine, K.A. and Ferdowsi, M. (2012) Active Capacitor Voltage Balancing in Single-Phase Flying-Capacitor Multilevel Power Converters. IEEE Transactions on Industrial Electronics, 59, 769-778.
[10] Chaturvedi, P.K., Jain, S. and Agarwal, P. (2011) Reduced Switching Loss Pulse Width Modulation Technique for Three-Level Diode Clamped Inverter. IET Power Electronics, 4, 393-399.
[11] Massoud, A.M., Ahmed, S., Enjeti, P.N. and Williams, B.W. (2010) Evaluation of a Multilevel Cascaded-Type Dynamic Voltage Restorer Employing Discontinuous Space Vector Modulation. IEEE Transactions on Industrial Electronics, 57, 2398-2410.
[12] Taghizadeh, H. and Hagh, M.T. (2010) Harmonic Elimination of Cascade Multilevel Inverters with Nonequal DC Sources Using Particle Swarm Optimization. IEEE Transactions on Industrial Electronics, 57, 3678-3684.
[13] Al Smadi, T.A. (2013) Design and Implementation of Double Base Integer Encoder of Term Metrical to Direct Binary. Journal of Signal and Information Processing, 4, 370.

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