Design and Development of Energy Efficient Single Phase Induction Motor For Ceiling Fan Using Taguchi's Orthogonal Arrays

The conventional single phase induction motor (SPIM) based ceiling fans are difficult to design using the analytical procedure because of inherent non-linearities in the electromagnetic construction. The high skew of rotor bars to eliminate the effect of low order harmonics, makes the analytical solution based on 2D magnetic circuit, quite inaccurate. This paper deals with the systematic design and experimental validation of the energy-energy efficient SPIM for ceiling fan application. A systematic approach starting from the existing SPIM is presented for improvement in the efficiency of the motor using 2D finite element analysis. The process involves the design validation of the existing ceiling fan motor followed by a set of design of experiments (2D multi slice time stepping transient finite element analysis) to obtain the energy efficient motor. Taguchi's orthogonal arrays are used for the improvement in the performance of the motor.