SPEED CONTROL OF INDUCTION MOTOR FED FROM SOLAR PHOTOVOLTAIC ARRAY
Keywords:
-Abstract
PV array is increasingly employed for water pumping system. In this paper, the developed boost
converter step up the voltage generated by the PV array to run a three-phase induction motor. Sinusoidal pulse
width modulation (SPWM) technique is used in inverter to convert DC to AC and LC filter is used to reduce the
harmonics content in the output voltage which can be directly used to drive a three-phase induction motor and pump
system. Experimental investigation presented gives the utility of such a drive system. A design of directly coupled
solar water pumping system powered from photovoltaic panels, DC to DC Boost converter, full bridge sinusoidal
pulse width modulation (SPWM) inverter, LC filter, induction motor and centrifugal pump is presented. PI
controller is used to maintain the output voltage constant.


