Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/70384
Title: Friction and nonlinearity compensation in hard disk drive servo systems using robust composite nonlinear feedback control
Authors: Peng, K. 
Chen, B.M. 
Cheng, G. 
Lee, T.H. 
Keywords: Hard disk drives
Nonlinear compensation
Nonlinear control
Servy systems
Issue Date: 2005
Source: Peng, K.,Chen, B.M.,Cheng, G.,Lee, T.H. (2005). Friction and nonlinearity compensation in hard disk drive servo systems using robust composite nonlinear feedback control. Australian Journal of Electrical and Electronics Engineering 2 (1) : 81-90. ScholarBank@NUS Repository.
Abstract: This paper presents design of hard disk drive (HDD) servo systems using an enhanced composite nonlinear feedback (CNF) control technique with a simple friction and nonlinearity compensation scheme. Friction and nonlinearity result in large residual errors and deteriorate the performance of head positioning of HDD servo systems. The enhanced CNF technique has a feature of removing the uncompensated portion of friction and nonlinearity without sacrificing the overall tracking performance. Simulation and experimental results for the servo design show that our approach is very effective and successful. In particular, our experimental results show that the enhanced CNF control has outperformed the conventional PID control in settling time. This approach can be adopted to solve other servomechanism problems. © Institution of Engineers, Australia 2005.
Source Title: Australian Journal of Electrical and Electronics Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/70384
ISSN: 14488353
Appears in Collections:Staff Publications

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