**AUTHORS:**Mahmoud M. Elkholy, Ahmed Fathy

**Download as PDF**

**ABSTRACT:**
In this paper an optimal performance of three phase induction motor drives a centrifugal water pump and fed from PV system without storage elements during starting and running is presented. A three level three phase inverter is used to convert the dc voltage from the PV array to a variable voltage and frequency to supply the three phase induction motor. The output voltage and frequency of the inverter are controlled to extract the maximum power from solar panel during running at different levels of irradiance and temperatures using a Teaching Learning Based Optimization (TLBO) algorithm with minimum motor losses. The ratio of voltage magnitude and frequency is held within rated values to avoid saturation and motor overheating. The rating of PV array is chosen to develop the rated power of the pump at normal irradiance and temperature. The output voltage of the inverter is controlled during starting to prevent an excessive current from PV and to develop a torque larger than pump torque. An ANN is developed to give an optimal inverter voltage and frequency to extract maximum power from the PV array. The complete model is simulated using MATLAB/ Simulink.

**KEYWORDS:**
Photovoltaic panel, Water Pumping System, Three phase Induction Drive, TLBO, ANN

**REFERENCES:**

[1] Masters G. M. Renewable and efficient electric power systems. John Wiley & Sons, Inc., Hoboken, New Jersey, 2004.

[2] Betka A., Attali A. Optimization of a photovoltaic pumping system based on the optimal control theory. Solar Energy 2010; 84, pp.1273–1283.

[3] Betka A., Moussi A. Performance optimization of a photovoltaic induction motor pumping system. Renewable Energy 2004; 29, pp. 2167– 2181.

[4] Kulaksız A., Akkaya R. A genetic algorithm optimized ANN-based MPPT algorithm for a stand-alone PV system with induction motor drive. Solar Energy 2012; 86, pp. 2366–2375.

[5] Akbaba M. Matching induction motors to PVG for maximum power transfer. Desalination 2007; 209, pp. 31–38.

[6] Benlarbi K., Mokrani L., Nait-Said M. A fuzzy global efficiency optimization of a photovoltaic water pumping system. Solar Energy 2004; 77, pp. 203–216.

[7] Ghoneim A. Design optimization of photovoltaic powered water pumping systems. Energy Conversion and Management 2006; 47, pp. 1449–1463.

[8] Jaziri S., Jemli K. Optimization of a photovoltaic powered water pumping system. International Conference on Control, Decision and Information Technologies, 6-8 May 2013, pp. 422–428

[9] Badoud A., Khemliche M., Bouamama B., Bacha S., Villa L. Bond graph modeling and optimization of photovoltaic pumping system: Simulation and experimental results. Simulation Modelling Practice and Theory2013; 36, pp. 84–103.

[10] Ouachani I., Rabhi A., Tidhaf B., Zouggar S., Elhajjaji A. Optimization and control for a photovoltaic pumping system. International Conference on Renewable Energy Research and Applications, Madrid, Spain, 20-23 October 2013, pp. 734–739.

[11] Periasamy P., Jain N., Singh I. A review on development of photovoltaic water pumping system. Renewable and Sustainable Energy Reviews 2015; 43, pp. 918–925.

[12] Muljadi E. PV water pumping with a peakpower tracker using a simple six-step squaresave inverter. IEEE Transactions on industrial applications 1997; 33(3), pp. 714–721.

[13] Luque R., Reca J., Martinez J. Optimal design of a standalone direct pumping photovoltaic system for deficit irrigation of olive orchards. Applied Energy 2015; 149, pp. 13–23.

[14] Corrêa T., Jr. S., Silva S. Efficiency optimization in stand-alone photovoltaic pumping system. Renewable Energy 2012; 41, pp. 220–226.

[15] Wade N., Short T. Optimization of a linear actuator for use in a solar powered water pump. Solar Energy 2012; 86, pp. 867–876.

[16] Betka A., Moussi A. Optimized solar water pumping system based on an induction motor driving a centrifugal pump. European Power and Energy Systems, June 15 – 17, 2005, Benalmádena, Spain.

[17] Gumus B., Yakut Y. Analysis of induction motor-pump system supplied by a photovoltaic generator for agricultural irrigation in southeastern Anatolian region of Turkey. Journal of Electrical Engineering & Technology 2015; 10, pp. 742-750.

[18] Belgacem B. Performance of submersible PV water pumping systems in Tunisia. Energy for Sustainable Development 2012; 16, pp. 415– 420.

[19] El-arini M., Othman A., Fathy A. A new optimization approach for maximizing the photovoltaic panel power based on genetic algorithm and lagrange multiplier algorithm. International Journal of Photoenergy 2013, pp. 1–12.

[20] Fathy A., El-arini M., Othman A. A New evolutionary algorithm for the optimal sizing of stand-alone photovoltaic system based on genetic algorithm. International Review of Electrical Engineering 2013; 8(3), pp. 1067– 1075.

[21] Fathy A. Reliable and efficient approach for mitigating the shading effect on photovoltaic module based on modified artificial bee colony algorithm. Renewable Energy 2015; 81, pp. 78–88.

[22] Rajesh B., Manjesh Dr. Analysis of THD and Harmonics in 3 Level Inverter with LC filter. ITSI Transactions on Electrical and Electronics Engineering 2014; 2(4), pp. 30– 34.

[23] Adrian S., Kokkosis A. Vector Control of Induction Machine Fed by Three Level Inverter. Journal of Eleetrieal and Eleetronies Engineering 2011; 4(1), pp. 215–218.

[24] Chiasson J. Modelling and high performance control of electric machines. John Wiley & Sons, Inc., 2005.

[25] ETAP11, Motor Load Model Library Model.

[26]Rao R., Savsani V., Vakharia D. Teaching– learning-based optimization: A novel method for constrained mechanical design optimization problems. Computer-Aided Design 2011; 43, pp. 303–315.

[27] Pawar P., Rao R. Parameter optimization of machining processes using teaching–learningbased optimization algorithm. International Journal of Advanced Manufacturing Technology 2013; 67(5), pp. 995– 1006.