Optimization of BLDC Motor for Submersible Motor Pump-sets Application

Optimization of the conventional Special Electrical Machines is one of the recent research areas. In terms of energy conservation aspects, the conventional Special Electrical Machines require optimization in stator and rotor design. In this paper, optimization of Brushless DC Motor (BLDC) for submersible pump-set suitable for agriculture and irrigation applications is carried out. The major factor of Efficiency in BLDC Motor is associated with iron loss of core material and cogging torque. In this paper, the efficiency of BLDC Motor is increased by optimal selection of electrical steel sheet, to reduce the iron loss and various pole embrace technique of permanent magnet is considered to optimize the cogging torque. A 5-HP, 2 pole, 24 slots BLDC Motor is considered for submersible pump-set application. The various types of electrical steel sheets like those that M15 to M43 and various magnetic grades are considered for analysis and optimization. The Electromagnetic analysis has been done with the help of finite element method using Ansys/Maxwell 2D.