Steady-state and transient performance evaluation of a DTC scheme in the low speed range

Author

Casadei, Domenico ; Serra, Giovanni ; Tani, Angelo

Author_Institution

Dipt. di Ingegneria Elettrica, Bologna Univ., Italy

Volume

16

Issue

6

fYear

2001

fDate

11/1/2001 12:00:00 AM

Firstpage

846

Lastpage

851

Abstract

In this paper, a direct flux and torque control scheme for industrial application is analyzed in order to emphasis the drive performance at standstill and in the low speed range. The control strategy utilizes the torque and rotor flux commands to determine the reference value of the stator flux. In order to improve the low speed performance a closed loop estimator is employed to evaluate the rotor flux. The validity of the control scheme is verified by simulations and experimental tests of an induction motor drive system

Keywords

closed loop systems; control system analysis; control system synthesis; induction motor drives; machine theory; machine vector control; magnetic flux; magnetic variables control; rotors; stators; torque control; closed loop estimator; control strategy; direct flux control scheme; direct torque control scheme; induction motor drive system; industrial application; low speed performance; rotor flux commands; stator flux reference value; torque commands; Inductance; Induction motor drives; Induction motors; Pulse width modulation; Rotors; Stators; Steady-state; Switching frequency; Torque control; Voltage;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.974383

Filename

974383