Robust track following in Hard Disk Drives with time delays: An infinite dimensional approach

buir.contributor.authorÖzbay, Hitay
dc.citation.epage289en_US
dc.citation.spage280en_US
dc.citation.volumeNumber93en_US
dc.contributor.authorYan, Y.en_US
dc.contributor.authorÖzbay, Hitayen_US
dc.contributor.authorLyuc, Z.en_US
dc.date.accessioned2020-02-06T13:45:47Z
dc.date.available2020-02-06T13:45:47Z
dc.date.issued2019-10
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractDue to the existence of various sources of delays, the dynamical model of HDD (Hard Disk Drive) servo systems is actually infinite dimensional, although most of the existing algorithms simplified the model with Padé expansions or other finite dimensional approximations. In this paper, a robust loop shaping algorithm is developed for high accuracy track following of HDD servo systems with delays by using an H∞ synthesis approach for infinite dimensional systems. The H∞ controller is derived with a structure of an internal feedback loop including an FIR (Finite Impulse Response) filter and a first order IIR (Infinite Impulse Response) filter, which facilitates stable implementations. Digital implementation of the proposed control structure is further investigated by incorporating H∞ based sampled-data FIR filter design and approximation. Comparisons to other robust control methods are given, and the advantages of the proposed algorithm are demonstrated in terms of tracking TPI (Track-per-Inch) capability and transient responses using HDD factory measurement data.en_US
dc.description.provenanceSubmitted by Evrim Ergin (eergin@bilkent.edu.tr) on 2020-02-06T13:45:47Z No. of bitstreams: 1 Robust_track_following_in_Hard_Disk_Drives_with_time_delays_An_infinite_dimensional_approach.pdf: 1200479 bytes, checksum: 2be04a3566c092977669b8ae164657b9 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-02-06T13:45:47Z (GMT). No. of bitstreams: 1 Robust_track_following_in_Hard_Disk_Drives_with_time_delays_An_infinite_dimensional_approach.pdf: 1200479 bytes, checksum: 2be04a3566c092977669b8ae164657b9 (MD5) Previous issue date: 2019-10en
dc.embargo.release2021-10-01en_US
dc.identifier.doi10.1016/j.isatra.2019.03.018en_US
dc.identifier.issn0019-0578
dc.identifier.urihttp://hdl.handle.net/11693/53147
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://doi.org/10.1016/j.isatra.2019.03.018en_US
dc.source.titleIsa Transactionsen_US
dc.subjectMechatronicsen_US
dc.subjectServoen_US
dc.subjectHard Disk Drivesen_US
dc.subjectRobust controlen_US
dc.subjectTime delaysen_US
dc.titleRobust track following in Hard Disk Drives with time delays: An infinite dimensional approachen_US
dc.typeArticleen_US

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