Sensorless operation of surface mount permanent magnet AC (PMAC) motors

Author

Toliyat, Hamid A. ; Shet, Deepak S.

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Volume

3

fYear

1999

fDate

1999

Firstpage

2141

Abstract

A position sensorless field oriented control scheme for surface mount permanent magnet AC (PMAC) motor is presented. A digital signal processor (DSP) is used to implement the sensorless scheme. The PMAC stator is wound like that of a conventional three-phase induction motor. Taps are also provided which are used for voltage measurements. By measuring the tap voltages, absolute position of the permanent magnet AC motor, driven by a current regulated PWM inverter, with a fixed frequency ramp comparison controller, is estimated. The estimated position information is independent of the stator resistance, thus this scheme is even applicable at low speeds

Keywords

PWM invertors; digital signal processing chips; electric current control; induction motors; machine vector control; permanent magnet motors; position control; stators; voltage measurement; DSP; current regulated PWM inverter; digital signal processor; fixed frequency ramp comparison controller; position sensorless field oriented control; sensorless operation; split phase motor; stator; surface mount permanent magnet AC motors; tap voltages measurement; taps; three-phase induction motor; voltage measurements; AC motors; Digital signal processing; Digital signal processors; Frequency estimation; Induction motors; Permanent magnet motors; Permanent magnets; Sensorless control; Stators; Wounds;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1999. Proceedings of the 1999

Conference_Location

San Diego, CA

ISSN

0743-1619

Print_ISBN

0-7803-4990-3

Type

conf

DOI

10.1109/ACC.1999.786321

Filename

786321