Implementing Selective Harmonic Elimination in Cascaded Multilevel Inverter Using Different Metaheuristic Optimization Methods and Comparing Their Effectiveness

International Journal of Electrical and Electronics Engineering

© 2015 by SSRG - IJEEE Journal

Volume 2 Issue 9

Year of Publication : 2015

Authors : K.M.Ravi Eswar

10.14445/23488379/IJEEE-V2I9P101

How to Cite?

K.M.Ravi Eswar, "Implementing Selective Harmonic Elimination in Cascaded Multilevel Inverter Using Different Metaheuristic Optimization Methods and Comparing Their Effectiveness," SSRG International Journal of Electrical and Electronics Engineering, vol. 2,  no. 9, pp. 1-6, 2015. Crossref, https://doi.org/10.14445/23488379/IJEEE-V2I9P101

Abstract:

 During the process of designing a multilevel inverter significant effort is taken to reduce the harmonic content of the output. In recent years utilization of mathematical optimization algorithms for Selective harmonic elimination (SHE) in the multilevel inverter output has emerged as a much favored procedure among the engineering community. A special class of algorithms called metaheuristic algorithms is now being widely used for this purpose. This paper used four different metaheuristic methods for solving the nonlinear transcendental equation of SHE problem of a seven level cascaded H bridge inverter. A comparative study was carried out to measure the effectiveness of each method through rigorous simulation. The efficacious of each algorithm was assessed in terms of the total harmonic distortion in the optimized inverter output obtained after applying the algorithm. The four optimization used in this paper are simulated annealing, bacterial foraging, firefly and cuckoo algorithms. The following research concluded that cuckoo algorithm gave the lowest THD for the multilevel inverter.

Keywords:

Multilevel inverter; Selective harmonic elimination; Metaheuristic optimization algorithm.

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