Title :
Following control of hard disk drives using multi-rate H∞ control -experimental study
Author :
Takiguchi, Masatoshi ; Hirata, Mitsuo ; Nonami, Kemo
Author_Institution :
Dept. of Electron. & Mech. Eng., Chiba Univ., Japan
Abstract :
In the head-positioning control of hard disk drives, the measurement sampling period cannot be changed. However, it is possible to select control period arbitrarily. Therefore, multi-rate control can improve the control performance without changing the measurement sampling period. Thus, this paper proposes a design method of multi-rate head-positioning controller for hard disk drives using H∞ control based on discrete-time lifting technique. The effectiveness of the method has been shown by simulation and experimental results.
Keywords :
H∞ control; disc drives; discrete time systems; frequency response; position control; control performance; discrete-time lifting technique; hard disk drives; head-positioning control; measurement sampling; multirate H∞ control; Costs; Design methodology; Disk drives; Error correction; Frequency response; Hard disks; Magnetic heads; Magnetic resonance; Sampling methods; Voltage control;
Conference_Titel :
SICE 2002. Proceedings of the 41st SICE Annual Conference
Print_ISBN :
0-7803-7631-5
DOI :
10.1109/SICE.2002.1195584
