Title :
Performance of large line-start permanent magnet synchronous motors
Author :
Rahman, M.A. ; Osheiba, A.M.
Author_Institution :
Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John´´s, Nfld., Canada
fDate :
3/1/1990 12:00:00 AM
Abstract :
A successful design of a 25 hp permanent-magnet synchronous motor using SmCo5 and NdBFe magnets is presented. Expressions to predict the motor run-up and terminal performance are given. The rotor was tested for the straight interior rotor magnet arrangement. A record efficiency of over 94% was obtained at full load with a high power factor when the NdBFe magnets were used. The starting and synchronization were quick and smooth. There was no evidence of temperature limitations on the embedded rotor NdFBe magnets. A reasonable agreement between the computed and measured results was obtained
Keywords :
permanent magnet motors; permanent magnets; synchronous motors; 25 hp; NdBFe; SmCo5; line-start permanent magnet synchronous motors; straight interior rotor magnet arrangement; Assembly; Coercive force; Conducting materials; Costs; Demagnetization; Frequency; Magnetic flux; Magnetic materials; Permanent magnet motors; Power engineering and energy; Rotors; Samarium; Saturation magnetization; Synchronous motors;
Journal_Title :
Energy Conversion, IEEE Transactions on
