Sajubilli Satti Babu, G Venkatewara Rao
A novel converter is proposed in this paper for photovoltaic (PV) water pumping applications and this converter drives the three-phase induction motor by utilizing PV energy. By replacing the commercial dc motor with IM, it saves the cost, less maintenance, more efficient as well as it presents better performance for water pumping applications. The developed system in this paper is based on boost converter and a full-bridge three-phase three level inverter. The topology of the boost converter has low input current ripple and high voltage gain. This paper presents simulation of open loop and closed loop controlled boost converter system for solar installation system. Matlab models for open loop and closed loop systems are developed using the blocks of simulink and the same are used for simulation studies. The closed loop system is able to maintain constant voltage. This converter has advantages like reduced hardware and good output voltage regulation. Thus the boost converter is capable of improving the voltage level from 15 V to the required level.
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