Title :
Dynamic performance prediction of polyphase hysteresis motors
Author :
Rahman, M. Azizur ; Osheiba, Ali M.
Author_Institution :
Fac. of Eng., Memorial Univ. of Newfoundland, St. John´´s, Nfld., Canada
Abstract :
The dynamic performance characteristics of polyphase hysteresis motors are presented. A mathematical model to predict the starting and synchronization process of such motors under various operating conditions is given. The model offers a tool for studying the dynamic stability of the hysteresis motor for small-scale disturbances such as changes in load torque, supply voltage, and frequency. A parametric variation is provided to highlight effects of varying some of the critical quantities like hysteresis lag angle, recoil permeability, and rotor dimensions. Two experimental rotors made of 36% and 17% cobalt-steel alloys were used in this investigation. Simulations of the dynamic behaviors of the two motors are presented. There exists a reasonably close agreement between the simulated and measured results
Keywords :
hysteresis motors; rotors; stability; starting; synchronisation; dynamic performance characteristics; dynamic stability; frequency; hysteresis lag angle; load torque; mathematical model; polyphase hysteresis motors; recoil permeability; rotor dimensions; rotors; starting; supply voltage; synchronization; Equations; Frequency synchronization; Hysteresis motors; Magnetic hysteresis; Magnetic materials; Rotors; Stability; Synchronous motors; Torque; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
