Selective Harmonics Elimination Of Cascaded Multilevel Inverter Using Genetic Algorithm

In this paper, a genetic algorithm (GA) optimization technique is applied to cascaded multilevel inverter to determine optimum switching angles for eliminating some lower order harmonics also minimize the total harmonics distortion while maintaining the required fundamental voltage. This technique can he applied to multilevel inverters with any number of levels; as an example in this paper, a 15-level inverter is considered, and the optimum switching angles are calculated offline to eliminate 5th, 7th and 11th harmonics. Then, these angles are used in MATLAB similink to validate the results.

[1]  S. Debnath,et al.  THD Optimization in 13 level photovoltaic inverter using Genetic Algorithm , 2012 .

[2]  Peter K. Steimer,et al.  Five level GTO inverters for large induction motor drives , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

[3]  Lance D. Chambers.  Practical handbook of genetic algorithms , 1995 .

[4]  Bin Wu,et al.  High-Power Converters and AC Drives , 2006 .

[5]  Leon M. Tolbert,et al.  Multilevel converters for large electric drives , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[6]  Darshan Kumar,et al.  Genetic Algorithm Based Approach for Optimization of Conducting Angles in Cascaded Multilevel Inverter , 2012 .

[7]  Stephen J. Finney,et al.  Mapped phase-shifted space vector modulation for multi-level voltage-source inverters , 2007 .

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

[9]  R. Ray,et al.  Harmonics elimination in a multilevel inverter using the particle swarm optimisation technique , 2009 .

[10]  J. Sun,et al.  Optimal PWM based on real-time solution of harmonic elimination equations , 1996 .

[11]  R. K. Ursem.  Multi-objective Optimization using Evolutionary Algorithms , 2009 .

[12]  F.Z. Peng,et al.  A practical harmonics elimination method for multilevel inverters , 2005, Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005..

[13]  C. Moorehead.  All rights reserved , 1997 .

[14]  J.R. Wells,et al.  Modulation-Based Harmonic Elimination , 2007, IEEE Transactions on Power Electronics.