Comprehensive Review on Control Strategies and Topologies of Multi Level Inverter System

Abstract

In recent decades, multi-level converters topologies have attracted high-performance and medium voltage energy control for academia and industry. Further, the multi-level concept is used to synthesise the harmonic distortion on the output wave form without reducing the inverter power output. The multi-level concept is used for reducing harmonic distortion in the output waveform. The following topologies are presented: diode clamped inverters (neutral point clamped), capacitor clamped (flying condenser), cascaded multi-levels (dc source, etc.) and the most suitable methods of modulation developed for this category of converters: multi-level, selective harmonic elimination and space m vectors. This paper provides a series of different topologies. For 20 years, multi-level inverters have been gaining high popularity in research teams and in the development of high and medium voltage applications for industrial applications. In addition, multi-level inverters can produce switched waveforms with reduced harmonic slopes compared to a traditional converter. Multi-level inverters have recently increased interest in their ability to produce high quality wave forms at lower frequencies; the multilevel topology used in dynamic restaurant voltages decreases the harmonic distortion of the output waveform without losses of output of the inverter. This paper explores the most common topologies by incorporating control techniques for multi-level inverters, making their implementations versatile in many industrial areas in some power applications.