Abstract：To solve the problems of low efficiency and power factor of motor by the low utilization rate of winding materials of ring-winding induction motor, a double-rotor ring-winding induction motor was proposed. The structure characteristics, the magnetic circuit characteristics and the circuit characteristics of double-rotor ring-winding induction motor were analyzed. Based on the analysis results, the design method of the motor was put forward. The basic size of the motor was determined by the proposed design method, and the electromagnetic performance of the motor was simulated by the three-dimensional finite element simulation analysis method. The designed motor was compared with Y-type traditional induction motor with the same power and pole number. The simulation results show that the accuracy of the design method of double-rotor ring-winding induction motor can be verified. The comparison illuminates that the double-rotor ring-winding induction motor is more efficient and energy-saving.
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2019, Vol. 40 
