DocumentCode :
323414
Title :
Robust fuzzy variable structure control of PMLSM servo system
Author :
Qingding, Guo ; Limei, Wang ; Ruifu, Luo
Author_Institution :
Dept. of Electr. Eng., Shenyang Polytech. Univ., China
Volume :
1
fYear :
1997
fDate :
28-31 Oct 1997
Firstpage :
675
Abstract :
The paper proposes a new position control strategy which is robust against load disturbance, torque ripple and parameter variations. The strategy is an expansion of disturbance observer based on acceleration control loop. According to the current and position information, the disturbance observer estimates the disturbance and parameter variations and constructs the feedforward force loop. As a robust control system based on disturbance observer sometimes has high overshoot and oscillated response, both the feedback controller and disturbance observer adopt fuzzy variable structure construction so that observer noise is suppressed. The effectiveness of the proposed controller is verified by experimental result. Disturbance suppression and improvement of phase delay are attained
Keywords :
acceleration control; feedforward; fuzzy control; fuzzy set theory; linear synchronous motors; machine control; observers; permanent magnet motors; position control; robust control; servomechanisms; PMLSM servo system; acceleration control loop; disturbance observer; feedback controller; feedforward force loop; fuzzy variable structure construction; load disturbance; observer noise; oscillated response; parameter variations; permanent magnet linear synchronous motor; phase delay; position control strategy; position information; robust control system; robust fuzzy variable structure control; torque ripple; Acceleration; Control systems; Electric variables control; Force control; Fuzzy control; Fuzzy systems; Robust control; Servomechanisms; Servomotors; Synchronous motors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Processing Systems, 1997. ICIPS '97. 1997 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4253-4
Type :
conf
DOI :
10.1109/ICIPS.1997.672871
Filename :
672871
Link To Document :
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