Title :
Nonlinear observer-based adaptive tracking control for induction motors with unknown load
Author :
Yang, Jung-Hua ; Yu, Wen-Hai ; Fu, Li-Chen
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
12/1/1995 12:00:00 AM
Abstract :
In this paper, we propose a nonlinear observer-based adaptive controller for induction motors with unknown load. With the use of the skew-symmetric property of induction motors, a two-stage design technique is applied to construct an observer-based controller for velocity tracking control. To demonstrate the effectiveness of the proposed scheme, a voltage-control type of drive system is set up to perform the task of velocity tracking. The main computing facility consists of two personal computers, PC 486 and PC 286, of which one is to perform the calculation of the control law and the other is to provide the function of pulse width modulation (PWM) and to generate the gating pulses. Satisfactory experimental results are shown in the paper
Keywords :
PWM invertors; adaptive control; electric machine analysis computing; induction motor drives; machine control; microcomputer applications; nonlinear control systems; observers; velocity control; voltage control; 286 PC; 486 PC; PWM inverter; adaptive tracking control; gating pulses; induction motors; nonlinear observer-based adaptive controller; pulse width modulation; skew-symmetric property; two-stage design technique; unknown load; velocity tracking control; voltage-control drive system; Adaptive control; DC motors; Induction motors; Position control; Programmable control; Pulse width modulation; Rotors; Stators; Torque; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
