Simulation of Fuel Cell Based Multilevel Inverter for Induction Motor Drives

Nowadays fuel cell technology is the emerging and developing for power production. Fuel cell converts chemical energy into electrical energy until the chemical (fuel) is supplied. Fuel cell produces dc voltage only, that is continuous voltage over the time period and also its produces lower output power which is not sufficient for larger utility. So the lower output from the fuel cell is needed to be step up into larger value. This can be achieved by using boost converter which gives higher voltage level from lower value with the help of energy storing inductance. The boost converter output is only dc it’s not useful for ac load so, by using inverter the dc voltage have to be converted into ac voltage. In this thesis diode clamped multi-level inverter is introduced which is differ from conventional voltage source inverter. The multi-level inverter gives ac voltage in multi-step manner. Due to this the harmonic content in the output of inverter is reduced and higher fundamental output voltage is achieved. It is efficient way of using renewable energy for power production.