Title :
Study on state-space averaging method for theodolite PWM servo control system
Author :
Hongwen, Li ; Yuanchun, Li ; Tao, Chen
Author_Institution :
Dept. of Control Sci. & Eng., Jilin Univ., Changchun, China
Abstract :
The state-space averaging method is presented for the design of PWM (pulse width modulation)-controlled DC motor used in the electro-optical theodolite servo system, especially, using the bipolar DC servomotor with the full bridge main circuit, the transfer functions between the output angular velocity ω and the duty ratio of PWM d and the input voltage Vs are proposed, the small signal model of PWM DC servomotor is also analyzed. Based on the model, the simulation and actual experimental results are verified. Moreover, the capability and effectiveness of the ideas used in other controlled mode motor are also significant.
Keywords :
DC motors; control system synthesis; machine control; pulse width modulation; servomotors; state-space methods; theodolites; transfer functions; PWM controlled DC motor; angular velocity; bipolar DC servomotor; duty ratio; electro-optical theodolite servo system; full bridge main circuit; state-space averaging method; transfer functions; DC motors; Electrooptic modulators; Pulse circuits; Pulse width modulation; Servomechanisms; Servomotors; Servosystems; Signal design; Space vector pulse width modulation; Theodolites;
Conference_Titel :
Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on
Print_ISBN :
0-7803-8273-0
DOI :
10.1109/WCICA.2004.1342347
