DESIGN AND IMPLEMENTATION OF NEW TOPOLOGY OF THREE PHASE FIVE LEVEL CASCADED INVERTER
Keywords:
Cascaded multilevel inverter, THDAbstract
In this paper a brief review on different cascaded inverter topologies are discussed. Inverter is a power
electronic device that converts DC power into AC power at desired output voltage and frequency. Inverters nowadays have
become an interesting area in the field of industrial applications. Conventional power electronic converters are able to
produce an output voltage that switches between two voltage levels only. Cascaded Inverter generates a desired output
voltage from several DC voltage levels at its input. The input side voltage levels are usually obtained from renewable energy
sources, capacitor voltage sources, fuel cells etc. The disadvantages of cascaded inverter is it has an huge increase in output
voltage hence it requires extra voltage controlers which intern increases in cost.