Fuel Cell Energy Source Based Multilevel Inverter

This paper review analysis of the performance of a fuel cell energy source based Multi Level Inverter topology. Multi Level Inverter topologies are suitable in high power application due to their ability to synthesize waveforms with better harmonic spectrum. The Multilevel inverter circuit analysis and selection of proper references discussed based on the formulation switching patterns. A Single phase five level cascaded inverter is used to explain the methods. The method can be easily extended to an m-level inverter. The cascaded inverter is subjected to a new modulation scheme, which uses multiple modulating signals with a single carrier. In order to justify the merits of the proposed modulation scheme, harmonic analysis for and measured THD and output voltages are compared and discussed.