Dealing with Secondary Actuator Saturation in Dual-Stage HDD Servo

Autor:	Guoxiao Guo, Daowei Wu, Tow C. Chong
Rok vydání:	2002
Předmět:	Engineering business.industry Servo control Control engineering Plant Servomechanism law.invention Computer Science::Robotics Nonlinear system Computer Science::Systems and Control law Control theory Servo bandwidth Servo drive Actuator business Servo
Zdroj:	IFAC Proceedings Volumes. 35:717-722
ISSN:	1474-6670
DOI:	10.1016/s1474-6670(17)34024-7
Popis:	This paper proposes a modification in the decoupled master-slave dual-stage hard disk drive (HDD) servo control configuration to enhance its stability when the secondary actuator is saturated. This method utilizes the special structure of the decoupled master-slave dual-stage control design and uses a nonlinear secondary actuator model instead of the usual linear one to predict its output and decouple the dual-actuator loop. This technique relaxes the displacement range requirements on the secondary actuator, and also greatly improves the stability of the servo system during the actuator saturation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d78f222060e1354d7850c73909aad9be https://doi.org/10.1016/s1474-6670(17)34024-7 Zobrazit plný text záznamu