Title :
Starting and synchronization of permanent magnet hysteresis motors
Author :
Rahman, M.A. ; Qin, Ruifeng
Author_Institution :
Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John´´s, Nfld., Canada
Abstract :
This paper presents the design and application of permanent magnets in hysteresis motors with a view to improve the overall performances of such motors. The novel rotor consists of 36% cobalt steel alloys with neodymium boron iron permanent magnets. This hybrid design combines advantageous performance features of both typical permanent magnet motors and conventional hysteresis motors. Machine models for steady state and run-up performances are derived. Using state variable equations, starting and synchronizing performances are predicted. Test results from a 5 hp laboratory prototype permanent magnet hysteresis motor validate these superior performances
Keywords :
boron alloys; design engineering; hysteresis motors; iron alloys; machine testing; machine theory; neodymium alloys; permanent magnet motors; permanent magnets; rotors; starting; synchronisation; 5 hp; NdFeB; application; design; performance; permanent magnet hysteresis motors; rotor; run-up; starting; state variable equations; steady state; synchronization; test results; Boron alloys; Cobalt alloys; Hysteresis motors; Iron alloys; Neodymium; Permanent magnet motors; Permanent magnets; Rotors; Steady-state; Steel;
Conference_Titel :
Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-1993-1
DOI :
10.1109/IAS.1994.377470
