Design and Simulation for Comparison of ThreePhase AC Motor and DC Motor Used in Solar Water Pumping System

The main aim of this paper is to design and simulations for comparison of three- phase AC motor and DC motor used in solar water pumping system that can provide water for irrigation without the use of batteries, utility power or diesel engines. This research has designed the system such that necessary power can be obtained from solar panel arrangement to run the water pumps which pumps water from underground and distributed to plantation fields. In this paper, deals with basics of solar powered water pumping system and the comparison of performance between AC motor and PMD motor pumping system for irrigation of various crops plantation in Southern Shan State is presented. The detail study for drip irrigation system and water requirement is carried out at Heho PRIME Farms Myanmar Ltd, Shan State. Currently, this farm is operated by diesel engine pumping system. Thus, running cost for water supply is high. In this paper, the use of solar water pumping and supply system is presented to replace diesel engine-based system. The daily water requirements for the various crops were determined and the pumping system was simulated using MATLAB/Simulink software. According to the results, the water demand for crops plantation can be fulfilled by the designed system. From the simulation results, it is found that the direct current motor is best suitable for photovoltaic water pumping than the three – phase AC induction motor in pumping applications