中文说明：摘要：近十年来，多电平逆变器的出现越来越多。这些新型的
English Description：
Abstract: The emergence of multilevel inverters has been in increase since the last decade. These new types of converters are suitable for high voltage and high power application due to their ability to synthesize waveforms with better harmonic spectrum. Numerous topologies have been introduced and widely studied for utility and drive applications. Amongst these topologies, the multilevel cascaded inverter was introduced in Static VAR compensation and drive systems. This project presents a new technique for getting a multilevel output and also uses PWM control techniques. In this technique, the number of switches used for the dc to ac conversion is