DocumentCode
2249293
Title
Runout compensation in active magnetic bearings with iterative learning control scheme
Author
Chao Bi ; Dezheng Wu ; Quan Jiang ; Liu, Z.
Author_Institution
Data Storage Inst.
fYear
2004
fDate
16-19 Aug. 2004
Firstpage
66
Lastpage
67
Abstract
Active magnetic bearing is a promising candidate for next generation spindle motors of hard disk drives. In this paper, an iterative learning control scheme is proposed to suppress the rotor poison runout induced by the unbalanced forces in AMB. The ILC controller can produce the synchronous compensation force by iteratively "learning" rotor runout information. This compensation force makes the rotor rotate about its geometric axis
Keywords
disc drives; hard discs; learning systems; machine bearings; magnetic bearings; motor drives; position control; rotors; ILC controller; active magnetic bearings; geometric axis; hard disk drives; iterative learning control scheme; rotor position runout compensation; spindle motors; synchronous compensation force; Bismuth; Coils; Force control; Hard disks; Magnetic levitation; Memory; Position control; Rotors; Stator cores; Synchronous motors;
fLanguage
English
Publisher
ieee
Conference_Titel
Asia-Pacific Magnetic Recording Conference, 2004. APMRC 2004
Conference_Location
Seoul
Print_ISBN
0-7803-8717-1
Type
conf
DOI
10.1109/APMRC.2004.1521953
Filename
1521953
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