Title :
Design of a new Direct Torque Control in induction motor
Author :
Xu Bo-qiang ; Zhang Xiao-feng
Author_Institution :
Sch. of Electr. Eng., North China Electr. Power Univ., Baoding, China
Abstract :
A new approach to Direct Torque Control (DTC) of induction motor is presented. Through the PI regulation, the torque error can lead to the desirable change in angle between stator and rotor flux vectors. The change in angle is added in the actual angle of stator magnetic flux vector and then the reference stator flux vector can be estimated. Applying a complex subtraction between the reference and the actual stator flux vector can acquire the desirable change in stator flux and then use the space vector modulation to control the motor. According to the simulation, it can be verified that this method can not only decrease the oscillation of torque and flux, but can simplify the design of control system as well.
Keywords :
PI control; angular velocity control; control system synthesis; induction motors; machine vector control; rotors; stators; torque control; PI regulation; control system design; direct torque control; induction motor; reference stator flux vector; rotor flux vector; space vector modulation; stator magnetic flux vector; Decision support systems; Induction motors; Torque control; Virtual reality; Direct Torque Control; Induction Motor; PI Regulation; Space Vector Modulation (SVM);
Conference_Titel :
Control and Decision Conference, 2009. CCDC '09. Chinese
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-2722-2
Electronic_ISBN :
978-1-4244-2723-9
DOI :
10.1109/CCDC.2009.5195179
