Sensorless Direct Field-Oriented Control of Three-Phase Induction Motor Drives for Low-Cost Applications

Author

Bojoi, Radu ; Guglielmi, Paolo ; Pellegrino, Gian-Mario

Author_Institution

Politec. di Torino, Turin

Volume

44

Issue

2

fYear

2008

Firstpage

475

Lastpage

481

Abstract

A sensorless direct rotor field-oriented control (SDRFOC) scheme of three-phase induction motors for low-cost applications is presented in this paper. The SDRFOC algorithm is based on a sensorless closed-loop rotor flux observer whose main advantages are simplicity and robustness to motor parameter detuning. The whole algorithm has been developed and implemented on a low-cost fixed-point digital signal processor controller. Experimental results are presented for a 0.5-kW induction motor drive for a primary vacuum pump used in industry applications.

Keywords

closed loop systems; induction motor drives; machine vector control; observers; rotors; SDRFOC scheme; fixed-point digital signal processor controller; motor parameter detuning; power 0.5 kW; primary vacuum pump; sensorless closed-loop rotor flux observer; sensorless direct rotor field-oriented control; three-phase induction motor drives; Digital control; Digital signal processors; Induction motor drives; Induction motors; Industry applications; Process control; Robustness; Rotors; Sensorless control; Signal processing algorithms; Digital control; digital signal processor (DSP); induction motor drive; low-cost applications; sensorless field-oriented control (SFOC);

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2008.916735

Filename

4475287