Title :
Design of HDD Servo Controller with Adaptive IMC Structure
Author :
Jia, Qingwei ; Yoshida, Shinobu
Author_Institution :
R&D Center, Hitachi Asia Ltd.
Abstract :
A robust controller design method with adaptive internal model control (IMC) structure for hard disk drive (HDD) servo is presented in this paper. To handle the unmodeled dynamics, the internal model control method is adopted to guarantee the robust stability. The model reference adaptive control (MRAC) technique is further incorporated into the IMC structure to deal with the gain variations of the VCM motor. The proposed method is applied to a HDD servo control system, and the experimental results show the effectiveness of the method
Keywords :
control system synthesis; disc drives; hard discs; model reference adaptive control systems; robust control; servomechanisms; HDD servo control; adaptive internal model control structure; hard disk drive; model reference adaptive control; robust controller design; Adaptive control; Control systems; Frequency; Hard disks; Magnetic heads; Programmable control; Robust control; Servomechanisms; Servosystems; Three-term control; Hard disk drive; PID control; internal model control; linear quadratic regulator (LQR); model reference adaptive control;
Conference_Titel :
Mechatronics and Automation, Proceedings of the 2006 IEEE International Conference on
Conference_Location :
Luoyang, Henan
Print_ISBN :
1-4244-0465-7
Electronic_ISBN :
1-4244-0466-5
DOI :
10.1109/ICMA.2006.257811
