MODELING AND ANALYSIS OF MULTI-LEVEL INVERTERS FOR POWER QUALITY PURPOSES

Document Type : Original Article

Authors

Electrical Engineering Department, Faculty of Engineering, Port-Said, Port￾Said University, Egypt

Abstract

Multilevel inverter technology has become the most appropriate utilization for high-power
medium-voltage drives and transmissions. This paper includes a comparative analysis of
the performance of 3-level and 5-level inverters connected to induction motor for power
quality purposes. It's likely to show the benefits of increasing the number of levels in an
inverter. A simple space vector modulation algorithm is used for this comparison. This
algorithm is applied to Cascaded Multilevel inverter topology. Power quality of these
schemes can be enhanced by eliminating the noisy harmonics. In order to reduce the total
harmonic distortion of the resulted voltage waveform a passive filter is carefully designed.
In this paper, simulation results are carried out using Matlab/Simulink software
environment.

Keywords