Optimized solar water pumping system based on an induction motor driving a centrifugal pump

This paper suggests how an optimal operation of a photovoltaic pumping system based on an induction motor driving a centrifugal pump can be realized. The optimization problem consists in maximizing the daily pumped water quantity via the optimization of the motor efficiency for every operation point, which has led to an optimum 'v-f' relationship useful in controlling the motor. This is reached via the control of a natural PWM VS inverter feeding the motor. The effectiveness of the proposed algorithm is described by simulation and the obtained results are compared to those of a system working with a constant air gap flux. The obtained results allow the improvement of the daily pumped water quantity and the pump efficiency. In addition, the influence of changing array temperature is also discussed.

[1]  L. Goel,et al.  A study on optimal sizing of stand-alone photovoltaic stations , 1998 .

[2]  Ivor R. Smith,et al.  Analysis and performance of a novel two-phase drive for fan and water-pumping applications , 1989 .

[3]  A. Hamidat,et al.  Small-scale irrigation with photovoltaic water pumping system in Sahara regions , 2003 .

[4]  C. L. Putta Swamy,et al.  Dynamic performance of a permanent magnet brushless DC motor powered by a PV array for water pumping , 1995 .

[5]  K. Al-Haddad,et al.  Optimized performance of solar powered variable speed induction motor drive , 1996, Proceedings of International Conference on Power Electronics, Drives and Energy Systems for Industrial Growth.

[6]  Saad Alghuwainem.  Steady-state performance of DC motors supplied from photovoltaic generators with step-up converter , 1992 .

[7]  Mohamed Mostafa Saied.  Matching of DC motors to photovoltaic generators for maximum daily gross mechanical energy , 1988 .

[8]  R. Fletcher,et al.  A New Approach to Variable Metric Algorithms , 1970, Comput. J..

[9]  P. Famouri,et al.  Loss minimization control of an induction motor drive , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[10]  Mona N. Eskander,et al.  A maximum efficiency-photovoltaic-induction motor pump system , 1997 .

[11]  Kamel Khouzam,et al.  Optimum matching of direct-coupled electromechanical loads to a photovoltaic generator , 1993 .

[12]  B. S. Sonde,et al.  Performance Optimization of Induction Motor-Pump System Using Photovoltaic Energy Source , 1987, IEEE Transactions on Industry Applications.

[13]  J. Appelbaum.  Starting and Steady-State Characteristics of DC Motors Powered by Solar Cell Generators , 1986, IEEE Power Engineering Review.

[14]  Mehmet Akbaba,et al.  MATCHING OF SEPARATELY EXCITED DC MOTORS TO PHOTOVOLTAIC GENERATORS FOR MAXIMUM POWER OUTPUT , 1998 .

[15]  R. Posorski,et al.  Photovoltaic water pumps, an attractive tool for rural drinking water supply , 1996 .

[16]  J. M. D. Murphy,et al.  Power Electronic Control of Ac Motors , 1988 .

[17]  O. Ojo,et al.  Analysis of Current Source Induction Motor Drive Fed from Photovoltaic Energy Source , 1991, IEEE Power Engineering Review.

[18]  J. Samimi,et al.  Optimal sizing of photovoltaic systems in varied climates , 1997 .

[19]  P. Bustamante,et al.  Improvement of induction motor drive systems supplied by photovoltaic arrays with frequency control , 1994, IEEE Power Engineering Review.