Design and Software Implementation of Multilevel Diode Clamped Converter

Abstract

The work presented in this paper concerned with the design and software synthesis of multilevel diode clamped converter. Two topologies of this type of converters have been considered and tested. The first topology was three-level diode clamped converter, while the second one was the five-level diode clamped converter. The major task of the proposed work is to feed a three-phase load with semi-pure (low distorted) sinewave three-phase voltages. Simulation results show that an approximately unity power factor, low harmonic distortion and balance of capacitors voltages are achieved. The work presented for three level and five level to verify the positive effect of increasing the level of converter. The digital simulation is performed using the MATLAB / Simulink software.

Performance Comparison of Five-Level Active Neutral Point Converter Based on Phase Disposition-PWM and Alternate Phase Opposition Disposition-PWM

“…In recent decades, converters with the ability to generate multi-level voltages, which are known as multilevel converters (MLC) have become the most attractive in the academic and industrial fields [1][2][3][4]. Their attractiveness resulted from the nature of their structure that qualifies there to work in medium and high voltage applications using switches with low voltage rate [5][6][7][8][9].…”