Title :
Repetitive Controller Design for Track Following of Hard Disk Drive Servo System
Author :
Yilei, Wu ; Mingzhong, Ding ; KianKeong, Ooi ; Chenyang, Ding
Author_Institution :
Seagate Technol. Int., Singapore
Abstract :
Recently repetitive controller has been applied in servo systems of hard disk drives (HDD) to remove the repeatable errors caused by rotating mechanism of spindle motors. However, most results of published articles are too complex to be implemented in industrial applications. In this paper, we present an improved design strategy for repetitive control of HDD by minimizing the power spectral density (PSD) of PES. An analytic solution is given with tolerable computation requirements and can be evaluated by software, even assembly languages. Simulations of track following of HDD servo are carried out based upon the theoretical derivations. The result shows that compared to single PID control, the proposed controller improves the performance of steady state response
Keywords :
control system synthesis; disc drives; hard discs; minimisation; position control; stability; hard disk drive servo system; power spectral density minimization; repetitive controller design; rotating mechanism; spindle motors; track following; Application software; Assembly; Computational modeling; Control systems; Electrical equipment industry; Error correction; Hard disks; Servomechanisms; Servomotors; Three-term control; hard disk drive; optimization; repetitive controller;
Conference_Titel :
Control, Automation, Robotics and Vision, 2006. ICARCV '06. 9th International Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0341-3
Electronic_ISBN :
1-4214-042-1
DOI :
10.1109/ICARCV.2006.345434
