Title :
A trajectory feedback control for the computer disk file track-accessing/following servo
Author :
Yen, Jia-Yush ; Tsai, So-Zen
Author_Institution :
Dept. of Mech. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
10/1/1997 12:00:00 AM
Abstract :
This letter presents the idea of using the distances along the time-optimal state trajectory for the feedback parameters in the computer disk file servo. The method allows smooth switching between saturated control efforts and can eliminate the common overshoot problem. Due to the nature of the feedback information, the method achieves both track accessing and track following with a single stage of control
Keywords :
feedback; hard discs; machine control; optimal control; position control; servomechanisms; computer disk file; computer disk file servo; feedback information; feedback parameters; overshoot problem elimination; saturated control efforts; time-optimal state trajectory; track-accessing/following servo; trajectory feedback control; Analytical models; Brushless DC motors; Disk drives; Feedback control; Permanent magnet motors; Servomechanisms; State feedback; Synchronous motors; Torque; Trajectory;
Journal_Title :
Industrial Electronics, IEEE Transactions on
