Title :
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
fDate :
11/1/2001 12:00:00 AM
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;
Journal_Title :
Power Electronics, IEEE Transactions on
