Abstract

The studies on the photovoltaic system are extensively increasing because of a large, secure, essentially exhaustible and broadly available resource as a future energy supply. Various converter topologies have been developed from many years for the effective operation of solar photo voltaic (SPV) systems especially boost converters. Induction motor application using SPV source requires an efficient converter which can produce higher value of AC voltage output from the PV input and also implement with reduced dv/dt stress and wide range of speed control. Here a Multilevel inverter for V/f control of induction motor driven from a Solar PV system with fuzzy controlled boost converter is presented. Using the proposed converter topology, voltage levels higher than the input value can be obtained. This can be utilized in SPV applications for obtaining required DC voltage for the inverter. PV based Multilevel inverter with fuzzy controlled boost converter is presented for the induction motor application. This topology is found to have better performance compared to the conventional inverters. The topology is evaluated with different voltage levels and it is found to give satisfactory results compared to conventional less number of voltage level multi level inverters.