A sensorless direct torque control technique for permanent magnet synchronous motors

Author

Fu, Minghua ; Xu, Longya

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

Volume

1

fYear

1999

fDate

1999

Firstpage

159

Abstract

A sensorless control strategy for permanent magnet synchronous motors (PMSM) is presented in this paper. A direct torque control (DTC) scheme based on the measurement and observation of stator current and flux vectors is proposed. The rotor position and actual torque is estimated through the stator flux estimation. Stator flux and voltage vectors are calculated according to the error between the actual and command torque to obtain the desired torque. Computer simulation and experimental results are presented to demonstrate the effectiveness of the proposed scheme

Keywords

control system analysis; control system synthesis; machine testing; machine theory; machine vector control; parameter estimation; permanent magnet motors; rotors; stators; synchronous motors; torque control; computer simulation; control design; control performance; control simulation; flux vectors; parameters estimation; permanent magnet synchronous motors; rotor position; sensorless direct torque control technique; stator current; stator flux; voltage vectors; Computer errors; Current measurement; Permanent magnet motors; Permanent magnets; Rotors; Sensorless control; Stators; Torque control; Torque measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.799948

Filename

799948