Title :
Discrete-time H2 optimal reset control with application to HDD track-following
Author :
Li, Hui ; Du, Chunling ; Wang, Youyi
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
This paper proposes a design method of discrete-time reset control systems with the reset time instants pre-specified. With a base linear system designed conventionally, the discrete-time reset law design aims at improving disturbance suppression of the system. The design method can be converted to a standard H2 optimal control problem and the solution of the controller is obtained by solving Riccati equations. The proposed reset controller design method is applied to track following stage of a hard disk drive servo system.
Keywords :
Hinfin control; Riccati equations; control system synthesis; disc drives; discrete time systems; hard discs; servomechanisms; H2 optimal control problem; HDD track-following; Riccati equations; base linear system; discrete-time reset control systems; disturbance suppression; hard disk drive servo system; reset controller design method; Control design; Control systems; Design methodology; Hard disks; Hydrogen; Linear systems; Optimal control; Riccati equations; Servomechanisms; Stability; H2 control; disturbance rejection; hard disk drives; optimal reset control;
Conference_Titel :
Control and Decision Conference, 2009. CCDC '09. Chinese
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-2722-2
Electronic_ISBN :
978-1-4244-2723-9
DOI :
10.1109/CCDC.2009.5192787
