Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 2

multi-level inverter Related Abstracts

2 Execution of Optimization Algorithm in Cascaded H-Bridge Multilevel Inverter

Authors: K. Ramani, M. Suresh Kumar

Abstract:

This paper proposed the harmonic elimination of Cascaded H-Bridge Multi-Level Inverter by using Selective Harmonic Elimination-Pulse Width Modulation method programmed with Particle Swarm Optimization algorithm. PSO method determine proficiently the required switching angles to eliminate low order harmonics up to the 11th order from the inverter output voltage waveform while keeping the magnitude of the fundamental harmonics at the desired value. Results demonstrate that the proposed method does efficiently eliminate a great number of specific harmonics and the output voltage is resulted in minimum Total Harmonic Distortion. The results shown that the PSO algorithm attain successfully to the global solution faster than other algorithms.

Keywords: Particle Swarm Optimization (PSO), total harmonic distortion (THD), multi-level inverter, Selective Harmonic Elimination Pulse Width Modulation (SHEPWM)

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1 Implementation of Multi-Carrier Pulse Width Modulation Techniques in Multilevel Inverter

Authors: K. Ramani, M. Suresh Kumar

Abstract:

This paper proposed the Multi-Carrier Pulse Width Modulation for the minimization of Total Harmonic Distortion in Cascaded H-Bridge Multi-Level Inverter. Multicarrier Pulse Width Modulation method uses Alternate Position of Disposition scheme to determine the appropriate switching angle to Multi-Level Inverter. In this paper simulation results shows that the validation of Multi-Carrier Pulse Width Modulation method does capably eliminate a great number of precise harmonics and minimize the Total Harmonic Distortion value in output voltage waveform.

Keywords: total harmonic distortion, multi-level inverter, alternate position, fast fourier analysis, multi-carrier pulse width modulation

Procedia PDF Downloads 449