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

Haider Ali^1*, Mohamed Z. H. Qawaqzeh², Muhammad Abbas¹, Takialddin Al Smadi³

¹CIIT, Abbottabad, Pakistan.
²Faculty of Engineering, Al-Balqa’ Applied University, Amman, Jordan.
³Department of Communications and Electronics Engineering, College of Engineering, Jerash University, Jerash, Jordan.

DOI: 10.4236/cs.2015.63008                

Abstract

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.<

Keywords

DCMLI, THD, Switching Angles, IGBTs, Trust Region Dog Leg

Conflicts of Interest

The authors declare no conflicts of interest.

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