Title :
A Reset Pi-Lead Filter Design with Application in Hard Disk Drives
Author :
Hong, F. ; Wong, W.E.
Author_Institution :
Data Storage Inst.
fDate :
Nov. 29 2006-Dec. 1 2006
Abstract :
In this paper, a novel reset nonlinear PI-lead filters control scheme in parallel structure is proposed. The uniformly bounded-input and bounded-state (UBIBS) stability is proved and the proposed scheme also can achieve asymptotic tracking of the constant reference signals and rejections to constant output disturbances. The scheme is applied in the hard disk drives in the tracking-seeking and track-following modes and its effectiveness is demonstrated with the reset servo by the reduction of overshoot and settling time, and the improvement of the tracking accuracy
Keywords :
PI control; disc drives; hard discs; nonlinear control systems; servomechanisms; stability; tracking; UBIBS; asymptotic tracking; disturbance rejection; hard disk drives; nonlinear control; overshoot; reset PI-lead filter design; reset servo; settling time; track-following mode; tracking-seeking mode; uniformly bounded-input and bounded-state stability; Control systems; Data engineering; Design engineering; Drives; Hard disks; Memory; Nonlinear filters; Servomechanisms; Stability; Transfer functions;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2006
Conference_Location :
Singapore
Print_ISBN :
1-4244-0863-6
DOI :
10.1109/APMRC.2006.365935
