Hardware Realization of Solar Powered Capacitor Start Induction Motor Water Pump fed by Seven Level Inverter with Minimized Switch Count

In this paper, a single-phase seven-level inverter with minimized switch count for the operation of a solar photovoltaic fed water pump was analyzed. The suggested multilevel inverter with lesser power semiconductor switches has a significant advantage of providing higher levels of voltage with better efficiency. The minimized device count is a very important factor in designing an inverter since the switches determine the size of the circuit, control complexity, losses, reliability, and cost. To reduce power loss, the inverter topology employs fewer ON state power switches. To gain a better insight, the comparative power loss analysis of seven- level inverter and conventional voltage source two-level inverter had been presented. The performance of inverter topology fed with 0.37KW capacitor start induction motor water pump is verified with MATLAB/Simulink environment and its suitability is tested on the experimental platform using dSPACE DS1104 real-time controller.