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Performance Optimization of Induction Motor-Pump System Using Photovoltaic Energy Source

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3 Author(s)
Bhat, S.R. ; Centre for Electronics Design and Technology (CEDT), Indian Institute of Science, Bangalore, 560 012 India. ; Pittet, A. ; Sonde, B.S.

The optimization of a photovoltaic pumping system based on an induction motor driven pump that is powered by a solar array is presented in this paper. The motor-pump subsystem is analyzed from the point of view of optimizing the power requirement of the induction motor, which has led to an optimum u-f relationship useful in controlling the motor. The complete pumping system is implemented using a dc-dc converter, a three-phase inverter, and an induction motor-pump set. The dc-dc converter is used as a power conditioner and its duty cycle is controlled so as to match the load to the array. A microprocessor-based controller is used to carry out the load-matching.

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Industry Applications, IEEE Transactions on  (Volume:IA-23 ,  Issue: 6 )