Performance prediction of shaded pole induction motors

An analysis is presented for evaluating the performance characteristics of reluctance-augmented shaded pole motors. The proposed model is based on the d-q axis technique and is valid for steady-state and dynamic conditions. Further, an efficient method for predicting the steady-state operating characteristics of the triac controlled shaded pole motor is presented. The method is used to calculate the effective currents and average torque as functions of the conduction and control angles of the triac. Careful attention is paid to the effects of critical parameters on motor performance. Simulated results show close agreement with the results of experimental tests of a two-pole single-phase induction motor.<>