Title :
Adaptive control system of speed sensor-less AC motor variable speed drive
Author_Institution :
Xi´´an Univ. of Sci. & Technol., China
Abstract :
According to the principle of the model reference adaptive control theory, the novel method using Popov´s hyperstability criterion to solve the convergent problem of the speed identification algorithm in a speed sensor-less direct torque control system is presented in this paper. Theory analysis and simulation study show that the suggested method can assure global asymptotically stability of the speed identification algorithm
Keywords :
AC motor drives; Popov criterion; asymptotic stability; convergence; machine control; model reference adaptive control systems; torque control; variable speed drives; velocity measurement; MRAC; Popov hyperstability criterion; convergence; direct torque control system; global asymptotic stability; model reference adaptive control theory; speed identification algorithm; speed sensor-less AC motor variable speed drive; AC motors; Adaptive control; Algorithm design and analysis; Analytical models; Asymptotic stability; Stability analysis; Torque control; Variable speed drives;
Conference_Titel :
Intelligent Control and Automation, 2000. Proceedings of the 3rd World Congress on
Conference_Location :
Hefei
Print_ISBN :
0-7803-5995-X
DOI :
10.1109/WCICA.2000.863069
