• Dr R. Tamilselvan
• Dr V.Padmathilagam

In this paper, harmonic elimination of an 11-level cascaded H-bridge Multi Level Inverter (MLI) using Bacterial Foraging Optimization Algorithm (BFOA) has been presented. The foremost objective of selective harmonic elimination pulse width modulation strategy is to eliminate the lower order harmonics, while the fundamental components are satisfied. BFOA is motivated by the collective foraging activity of Escherichia coli, rod shaped bacterium of the genus. The basic biology behind the foraging approach of Escherichia coli is imitated in an amazing way and used as an easy optimization algorithm. This method has higher precision and a probability of convergence. Bacterial Foraging optimization algorithm is used for optimization switching angle of the Cascaded Multi Level inverter (CMLI) in MATLAB/SIMULINK software. Theoretical results are verified by simulations for an 11-level H-bridge inverter. Simulation results illustrate that the projected method does efficiently eliminate a great number of specific harmonics and the corresponding output voltage is resulted with a low total harmonic distortion.

Bacterial Foraging optimization algorithm, Cascaded multilevel inverter, Total Harmonic elimination.

"APPLICATION OF BACTERIAL FORAGING OPTIMIZATION ALGORITHM FOR SELECTIVE HARMONIC ELIMINATION STRATEGY IN MULTILEVEL INVERTERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.253-261, September-2018, Available :http://www.jetir.org/papers/JETIRA006306.pdf

"APPLICATION OF BACTERIAL FORAGING OPTIMIZATION ALGORITHM FOR SELECTIVE HARMONIC ELIMINATION STRATEGY IN MULTILEVEL INVERTERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp253-261, September-2018, Available at : http://www.jetir.org/papers/JETIRA006306.pdf