A Hard-Disk-Drive Servo System Design Using Composite Nonlinear-Feedback Control With Optimal Nonlinear Gain Tuning Methods

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	A Hard-Disk-Drive Servo System Design Using Composite Nonlinear-Feedback Control With Optimal Nonlinear Gain Tuning Methods
	Lan, W. Y. ; Thum, C. K. ; Chen, B. M. ; Lan WY(兰维瑶)
刊名	http://dx.doi.org/10.1109/TIE.2009.2032205
	2010-05
关键词	MODE SWITCHING CONTROL INPUT SATURATION LINEAR-SYSTEMS TRANSIENT PERFORMANCE TRACKING CONTROL IMPROVEMENT
英文摘要	Natural Science Foundation of Fujian Province of China [2008J0033]; National Natural Science Foundation of China [60674037, 60704042]; This paper investigates the design of composite nonlinear-feedback (CNF) control law for a hard-disk-drive (HDD) servo system. First, a scaled nonlinear function is introduced for the CNF control law, in which a parameter is scaled by the error between the amplitude of the target reference and the initial value of the system controlled output. The closed-loop system under the scaled function has robust transient performance to the variation of the amplitude of the target reference. Then, the parameters of the selected nonlinear function are tuned by optimal tuning methods. More specifically, the parameter-tuning problem is formulated as an optimization problem, which can be solved efficiently via numerical methods. The simulation and experimental results show that the control law designed using the new approach yields excellent performance for both track seeking and track following in the HDD servo system.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/70613]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	Lan, W. Y.,Thum, C. K.,Chen, B. M.,et al. A Hard-Disk-Drive Servo System Design Using Composite Nonlinear-Feedback Control With Optimal Nonlinear Gain Tuning Methods[J]. http://dx.doi.org/10.1109/TIE.2009.2032205,2010.
APA	Lan, W. Y.,Thum, C. K.,Chen, B. M.,&兰维瑶.(2010).A Hard-Disk-Drive Servo System Design Using Composite Nonlinear-Feedback Control With Optimal Nonlinear Gain Tuning Methods.http://dx.doi.org/10.1109/TIE.2009.2032205.
MLA	Lan, W. Y.,et al."A Hard-Disk-Drive Servo System Design Using Composite Nonlinear-Feedback Control With Optimal Nonlinear Gain Tuning Methods".http://dx.doi.org/10.1109/TIE.2009.2032205 (2010).