Synthesis Of A Hysteresis Motor

ABSTRACT

This work presents the synthesis of a motor with hysteresis motor torque-speed

characteristic. The machine is synthesized from a conventional squirrel cage induction

motor (SCIM) with high rotor resistance to leakage reactance ratio and a polyphase

transfer field (TF) reluctance effect machine with an inverted torque-speed characteristics

about the speed axis. Both motors are mechanically coupled and are connected in parallel

to the supply. It is shown that the resultant torque which is the summation of the torques

of the two component machines is approximately constant from standstill to synchronous

speed ωo, typical of hysteresis motor. Unlike the conventional hysteresis motor, the

output torque of the synthesized version is much higher than the former.