Detection of shaft-edge field of induction motor for stable torque control

Author

Matsuno, M. ; Mohri, K. ; Takito, H. ; Inuzuka, K.

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Japan

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

5004

Lastpage

5006

Abstract

Detection of the rotor information of squirrel-cage induction motors for stable torque control is carried out by using a highly sensitive Magneto-Impedance micro magnetic sensor. The magnetic field detected near an edge of the rotor shaft is estimated to be proportional to the rotor current with a slip frequency (psf/2) and a torque when the motor is driven with a constant V/f inverter. Stable stationary torque control is realized independently of the motor temperature variation

Keywords

machine control; magnetic field measurement; magnetic sensors; magnetoresistive devices; rotors; squirrel cage motors; torque control; constant V/f inverter; magnetic field detection; magneto-impedance micromagnetic sensor; motor temperature variation; rotor current; rotor information; rotor shaft edge; shaft-edge field detection; slip frequency; squirrel-cage induction motors; stable torque control; Frequency; Induction motors; Inverters; Magnetic field measurement; Rotors; Shafts; Stators; Temperature sensors; Torque control; Torque measurement;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.539357

Filename

539357