Design and Development of Energy Efficient Induction Motor for Solar PV fed Submersible Water Pump

This paper presents an optimized energy efficient design and development of solar PV based three-phase submersible three-phase induction motor (SIM) prototype for water pumping system. It is a special kind of IM as designs and specifications differ from surface mounted induction motor. The efficiency of low rating (< 3hp) SIM is poor because of various design constraints. The design of SIM is analyzed with the analytical approach and is justified by RMxprt and Maxwell 2D. Maxwell2D design software is utilized as finite element analysis (FEA) tool to design a 2.2 kW, 2-pole, 2800 rpm submersible induction motor. The results show an improvement in the motor efficiency and material savings. This design methodology helps in significant reduction of the production cost of IM for the same stator bore diameter. The designed motor meets the required water pumping performance during starting and rated operation. The motor performance is verified through test results.