Title :
Implementation of direct torque control with GTO inverter for locomotive drives
Author :
Qu, Wenlong ; Yang, Yi ; Feng, Jianghua
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
The direct torque control (DTC) system of an induction motor fed with a GTO inverter is introduced in this paper. A kind of stator flux observation model (u-n model) which is suitable in all speed range of the motor is adopted. Due to high power of the electric locomotive inverter, the switch frequency of the GTO inverter is related lower, so different control strategies are employed in different ranges of speed. The simulation of the control system with MATLAB/SIMULINK is made. A prototype has been developed, its control system is based on the digital signal processor TMS320C31 and microcontroller 80C196KC. The debugging and experimental research have been done. The results prove that the control system has good steady and dynamic performances
Keywords :
digital signal processing chips; electric locomotives; induction motor drives; invertors; machine control; microcontrollers; thyristor convertors; thyristor motor drives; torque control; traction motor drives; 80C196KC microcontroller; GTO inverter; MATLAB/SIMULINK; TMS320C31 digital signal processor; control strategies; control system simulation; debugging; direct torque control; dynamic performance; induction motor; locomotive drives; stator flux observation model; steady performance; switch frequency; u-n model; Control system synthesis; Control systems; Frequency; Induction motors; Inverters; Mathematical model; Power system modeling; Stators; Switches; Torque control;
Conference_Titel :
Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International
Conference_Location :
Beijing
Print_ISBN :
7-80003-464-X
DOI :
10.1109/IPEMC.2000.885448
