A Unified Control Scheme for Track Seeking and Following of a Hard Disk Drive Servo System
This paper proposes a new nonlinear time-varying unified control scheme (UCS) for track-seeking and track-following in hard disk drives (HDDs) so as to avoid problem of mode switching. The proposed control scheme utilizes the concept of the conventional composite nonlinear feedback (CNF) scheme to a...
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| Veröffentlicht in: | IEEE transactions on control systems technology 2010-03, Vol.18 (2), p.294-306 |
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| creator | Chin Kwan Thum Chunling Du Chen, B.M. Eng Hong Ong Kim Piew Tan |
| description | This paper proposes a new nonlinear time-varying unified control scheme (UCS) for track-seeking and track-following in hard disk drives (HDDs) so as to avoid problem of mode switching. The proposed control scheme utilizes the concept of the conventional composite nonlinear feedback (CNF) scheme to achieve fast and smooth seeking. In order to be advantageous over the conventional CNF control, the UCS consists of both linear and nonlinear time-dependent components, which are independent of absolute seeking error. Simulation and implementation results show that, during track-seeking mode, the proposed scheme has a significantly better performance robustness against variations in seek length as compared to the conventional CNF control. For track-following, disturbance and noise models are involved in the problem formulation and sub-optimal H ¿ method is used to design the controller so as to achieve high head-positioning accuracy. It turns out that the unified controller removes 27.8% of the nonrepeatable disturbances and noise. |
| doi_str_mv | 10.1109/TCST.2009.2017513 |
| format | Article |
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The proposed control scheme utilizes the concept of the conventional composite nonlinear feedback (CNF) scheme to achieve fast and smooth seeking. In order to be advantageous over the conventional CNF control, the UCS consists of both linear and nonlinear time-dependent components, which are independent of absolute seeking error. Simulation and implementation results show that, during track-seeking mode, the proposed scheme has a significantly better performance robustness against variations in seek length as compared to the conventional CNF control. For track-following, disturbance and noise models are involved in the problem formulation and sub-optimal H ¿ method is used to design the controller so as to achieve high head-positioning accuracy. It turns out that the unified controller removes 27.8% of the nonrepeatable disturbances and noise.</description><identifier>ISSN: 1063-6536</identifier><identifier>EISSN: 1558-0865</identifier><identifier>DOI: 10.1109/TCST.2009.2017513</identifier><identifier>CODEN: IETTE2</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Adaptive control ; Applied sciences ; Computer science; control theory; systems ; Control system synthesis ; Control systems ; Control theory. Systems ; Disk drives ; Disturbances ; Electronics ; Exact sciences and technology ; Fault location ; Feedback ; Hard disk drives (HDDs) ; Hard disks ; Mathematical models ; mechatronics ; Miscellaneous ; mode switching ; Noise ; Nonlinear control systems ; Nonlinear feedback ; nonlinear time-varying systems (NLTV) ; Nonlinearity ; Optimal control ; Robust control ; Robustness ; servo systems ; Servomechanisms ; Storage and reproduction of information ; Time varying systems</subject><ispartof>IEEE transactions on control systems technology, 2010-03, Vol.18 (2), p.294-306</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Mar 2010</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c386t-62a416fcc0502856a7478c358df2e10f4ce91d78baf37598fdc49f1fd9a1a0be3</citedby><cites>FETCH-LOGICAL-c386t-62a416fcc0502856a7478c358df2e10f4ce91d78baf37598fdc49f1fd9a1a0be3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5152960$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5152960$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22483581$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Chin Kwan Thum</creatorcontrib><creatorcontrib>Chunling Du</creatorcontrib><creatorcontrib>Chen, B.M.</creatorcontrib><creatorcontrib>Eng Hong Ong</creatorcontrib><creatorcontrib>Kim Piew Tan</creatorcontrib><title>A Unified Control Scheme for Track Seeking and Following of a Hard Disk Drive Servo System</title><title>IEEE transactions on control systems technology</title><addtitle>TCST</addtitle><description>This paper proposes a new nonlinear time-varying unified control scheme (UCS) for track-seeking and track-following in hard disk drives (HDDs) so as to avoid problem of mode switching. The proposed control scheme utilizes the concept of the conventional composite nonlinear feedback (CNF) scheme to achieve fast and smooth seeking. In order to be advantageous over the conventional CNF control, the UCS consists of both linear and nonlinear time-dependent components, which are independent of absolute seeking error. Simulation and implementation results show that, during track-seeking mode, the proposed scheme has a significantly better performance robustness against variations in seek length as compared to the conventional CNF control. For track-following, disturbance and noise models are involved in the problem formulation and sub-optimal H ¿ method is used to design the controller so as to achieve high head-positioning accuracy. It turns out that the unified controller removes 27.8% of the nonrepeatable disturbances and noise.</description><subject>Adaptive control</subject><subject>Applied sciences</subject><subject>Computer science; control theory; systems</subject><subject>Control system synthesis</subject><subject>Control systems</subject><subject>Control theory. Systems</subject><subject>Disk drives</subject><subject>Disturbances</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Fault location</subject><subject>Feedback</subject><subject>Hard disk drives (HDDs)</subject><subject>Hard disks</subject><subject>Mathematical models</subject><subject>mechatronics</subject><subject>Miscellaneous</subject><subject>mode switching</subject><subject>Noise</subject><subject>Nonlinear control systems</subject><subject>Nonlinear feedback</subject><subject>nonlinear time-varying systems (NLTV)</subject><subject>Nonlinearity</subject><subject>Optimal control</subject><subject>Robust control</subject><subject>Robustness</subject><subject>servo systems</subject><subject>Servomechanisms</subject><subject>Storage and reproduction of information</subject><subject>Time varying systems</subject><issn>1063-6536</issn><issn>1558-0865</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqFkTtPwzAUhSMEEuXxAxCLhYSYAnYcPzJWhQJSJYaWhcUyzjWYJnGxU1D_PY5aMbCw-Nq63z26xyfLzgi-JgRXN4vJfHFdYFylgwhG6F42IozJHEvO9tMdc5pzRvlhdhTjB8akZIUYZS9j9Nw566BGE9_1wTdobt6hBWR9QIugzRLNAZaue0O6q9HUN43_Hl7eIo0edKjRrYtLdBvcFyQ0fHk038Qe2pPswOomwumuHmfP07vF5CGfPd0_Tsaz3FDJ-5wXuiTcGoMZLiTjWpRCGspkbQsg2JYGKlIL-aotFayStjZlZYmtK000fgV6nF1tdVfBf64h9qp10UDT6A78OiopBuH0Gf-SoqQClxzLRF78IT_8OnTJhkorMklpJRJEtpAJPsYAVq2Ca3XYKILVkIoaUlFDKmqXSpq53AnraHRjg-6Mi7-DRVHKZJ0k7nzLOQD4bTPCiopj-gMaPJOG</recordid><startdate>20100301</startdate><enddate>20100301</enddate><creator>Chin Kwan Thum</creator><creator>Chunling Du</creator><creator>Chen, B.M.</creator><creator>Eng Hong Ong</creator><creator>Kim Piew Tan</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>L7M</scope><scope>F28</scope></search><sort><creationdate>20100301</creationdate><title>A Unified Control Scheme for Track Seeking and Following of a Hard Disk Drive Servo System</title><author>Chin Kwan Thum ; Chunling Du ; Chen, B.M. ; Eng Hong Ong ; Kim Piew Tan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c386t-62a416fcc0502856a7478c358df2e10f4ce91d78baf37598fdc49f1fd9a1a0be3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adaptive control</topic><topic>Applied sciences</topic><topic>Computer science; control theory; systems</topic><topic>Control system synthesis</topic><topic>Control systems</topic><topic>Control theory. Systems</topic><topic>Disk drives</topic><topic>Disturbances</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Fault location</topic><topic>Feedback</topic><topic>Hard disk drives (HDDs)</topic><topic>Hard disks</topic><topic>Mathematical models</topic><topic>mechatronics</topic><topic>Miscellaneous</topic><topic>mode switching</topic><topic>Noise</topic><topic>Nonlinear control systems</topic><topic>Nonlinear feedback</topic><topic>nonlinear time-varying systems (NLTV)</topic><topic>Nonlinearity</topic><topic>Optimal control</topic><topic>Robust control</topic><topic>Robustness</topic><topic>servo systems</topic><topic>Servomechanisms</topic><topic>Storage and reproduction of information</topic><topic>Time varying systems</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chin Kwan Thum</creatorcontrib><creatorcontrib>Chunling Du</creatorcontrib><creatorcontrib>Chen, B.M.</creatorcontrib><creatorcontrib>Eng Hong Ong</creatorcontrib><creatorcontrib>Kim Piew Tan</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><jtitle>IEEE transactions on control systems technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Chin Kwan Thum</au><au>Chunling Du</au><au>Chen, B.M.</au><au>Eng Hong Ong</au><au>Kim Piew Tan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Unified Control Scheme for Track Seeking and Following of a Hard Disk Drive Servo System</atitle><jtitle>IEEE transactions on control systems technology</jtitle><stitle>TCST</stitle><date>2010-03-01</date><risdate>2010</risdate><volume>18</volume><issue>2</issue><spage>294</spage><epage>306</epage><pages>294-306</pages><issn>1063-6536</issn><eissn>1558-0865</eissn><coden>IETTE2</coden><abstract>This paper proposes a new nonlinear time-varying unified control scheme (UCS) for track-seeking and track-following in hard disk drives (HDDs) so as to avoid problem of mode switching. The proposed control scheme utilizes the concept of the conventional composite nonlinear feedback (CNF) scheme to achieve fast and smooth seeking. In order to be advantageous over the conventional CNF control, the UCS consists of both linear and nonlinear time-dependent components, which are independent of absolute seeking error. Simulation and implementation results show that, during track-seeking mode, the proposed scheme has a significantly better performance robustness against variations in seek length as compared to the conventional CNF control. For track-following, disturbance and noise models are involved in the problem formulation and sub-optimal H ¿ method is used to design the controller so as to achieve high head-positioning accuracy. It turns out that the unified controller removes 27.8% of the nonrepeatable disturbances and noise.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TCST.2009.2017513</doi><tpages>13</tpages></addata></record> |
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| subjects | Adaptive control Applied sciences Computer science control theory systems Control system synthesis Control systems Control theory. Systems Disk drives Disturbances Electronics Exact sciences and technology Fault location Feedback Hard disk drives (HDDs) Hard disks Mathematical models mechatronics Miscellaneous mode switching Noise Nonlinear control systems Nonlinear feedback nonlinear time-varying systems (NLTV) Nonlinearity Optimal control Robust control Robustness servo systems Servomechanisms Storage and reproduction of information Time varying systems |
| title | A Unified Control Scheme for Track Seeking and Following of a Hard Disk Drive Servo System |
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