ANALYSIS AND DESIGN OF MULTILEVEL INVERTER TOPOLOGY FOR DC TO AC CONVERSION WITH LOW COST

Multilevel converters offer high power capability, associated with lower output harmonics and lower commutation losses. The main disadvantage of multilevel converters includes more number of power switching devices, passive components and complex control circuitry. This paper determines a survey of new multilevel inverter topology using an H-bridge output stage with a bidirectional auxiliary switch and makes reduction in the number of power devices, capacitors required for desired level of outputs. Therefore multilevel inverter using H-Bridge results in high performance with reduced cost.