Saturday, 28 March 2009

Wseas Transactions

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Transactions: WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS
Transactions ID Number: 29-147
Full Name: Sarawut Sujitjorn
Position: Professor
Age: ON
Sex: Male
Address: School of Electrical Engineering, Suranaree University of Technology, Nakhon Ratchasima
Country: THAILAND
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E-mail address: sarawut@sut.ac.th
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Title of the Paper: Resonance and Friction Compensations in a Micro Hard Drive
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Number of paper pages: 10
Abstract: This paper presents dynamic compensations in a micro hard drive. It reviews dynamic models of the drive in low-and high-frequency regions. The nonlinear friction compensation for low-frequency dynamic is achieved via a fuzzy logic controller. Forward and backward micro-step motion of the read/write head can be nicely performed. Resonance compensation for high-frequency dynamic is achieved via linear compensation. The paper presents some comparison studies of using a cascaded lead compensator, a complex lead-lag compensator, and a searched polynomial compensator. The compensated system's performance is enhanced further by stable nonlinear control. Detailed descriptions of modelling, design, simulation results, and analysis can be found in the paper.
Keywords: Resonance, Friction, Compensation, Adaptive tabu search, Fuzzy logic, Hard drive.
EXTENSION of the file: .pdf
Special (Invited) Session: Fuzzy compensation for nonlinear friction in a hard drive
Organizer of the Session: 611-184
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