Automated Multiple Robust Track-Following Control System Design in Hard Disk Drives

This brief proposes a new design procedure for track-following control systems in hard disk drives. The procedure is automated, in the sense that, for given experimental frequency response data of the suspension arm dynamics and a model structure, it automatically derives a transfer function set wit...

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Vydané v:IEEE transactions on control systems technology Ročník 19; číslo 4; s. 920 - 928
Hlavní autori: Yazdi, E A, Sepasi, M, Sassani, F, Nagamune, R
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York, NY IEEE 01.07.2011
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
Applied sciences
Automated
Automatic control
Computer science; control theory; systems
Control system analysis
Control system synthesis
Control systems
Control systems design
Control theory. Systems
Design engineering
Design optimization
Disk drives
Electronics
Exact sciences and technology
Frequency domain analysis
Frequency response
Hard disks
Miscellaneous
Multiple robust controllers
nonlinear principal component analysis
nonsmooth optimization
Principal component analysis
Principal components analysis
Robust control
Storage and reproduction of information
Studies
track-following control
Transfer functions
Uncertainty
uncorrelated parametric uncertainties
Correlation coefficient
Multiobjective programming
Control synthesis
Multiple robust controllers
Frequency domain method
nonsmooth optimization
track-following control
Optimization
Robust control
uncorrelated parametric uncertainties
Uncertain system
Nonsmooth analysis
nonlinear principal component analysis
Frequency response
Hard disk
Transfer function
Dynamic model
Arm
Principal component analysis
Input output model
ISSN:1063-6536, 1558-0865
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Popis
Shrnutí:This brief proposes a new design procedure for track-following control systems in hard disk drives. The procedure is automated, in the sense that, for given experimental frequency response data of the suspension arm dynamics and a model structure, it automatically derives a transfer function set with uncorrelated parametric uncertainties. Subsequently, for the transfer function set, a given controller structure, and closed-loop performance specifications in the frequency domain, it automatically designs a partition of the uncertainties and corresponding multiple robust controllers. For the transfer function set derivation, nonlinear principal component analysis is utilized to determine correlations among coefficient parameter variations. For multiple robust controller design, a nonsmooth optimization approach is taken to deal with complex multiobjective control problems, as well as to reduce the computational cost, which is often an issue in multiple robust controller design. Simulations and experiments on actual hard disk drives demonstrate the usefulness and efficiency of the proposed procedure.
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ISSN:1063-6536
1558-0865
DOI:10.1109/TCST.2010.2053541