The on-line estimation of Voice coil motor windings resistance In Hard disk drive

Author

Wang, Xiaoyuan ; Zhao, Yulong

Author_Institution

Sch. of Electr. Eng. & Autom., Tianjin Univ.

fYear

2006

fDate

25-28 June 2006

Firstpage

1286

Lastpage

1290

Abstract

In this paper we describe an online estimation procedure, based on an extended Kalman filter (EKF), capable of estimating the VCM coil resistance with a high degree of accuracy. VCM resistance may change by 30% during hard disk drive (HDD) operation, increasing when the disk is performing repetitive seek or decreasing when the disk cools down during track following such variation may lead to an unsatisfactory performance to most of control methods which have applied to the servo-positioning system of HDD. So, it is important for designer to estimate the windings resistance in real time. In order to evaluate the parameter, EKF is a good tool, which has been successfully used in on-line estimation of slowly varying parameters in electric drives

Keywords

Kalman filters; coils; disc drives; hard discs; machine windings; motor drives; nonlinear filters; position control; servomotors; electric drives; extended Kalman filter; hard disk drive; online estimation; servo-positioning system; voice coil motor windings resistance; Actuators; Automation; Coils; Electric resistance; Hard disks; Magnetic heads; Nonlinear dynamical systems; Nonlinear systems; Servomechanisms; State estimation; EKF; VCM; on-line resistance estimation; windings resistance;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICMA.2006.257812

Filename

4026272