Brief paper: A generalized KYP lemma based approach for disturbance rejection in data storage systems

  • Authors:
  • Chunling Du;Lihua Xie;Guoxiao Guo;Jul Nee Teoh

  • Affiliations:
  • A*STAR, Data Storage Institute (DSI), 5 Engineering Drive 1, Off Kent Ridge Crescent, NUS, Singapore 117608, Singapore;School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore;A*STAR, Data Storage Institute (DSI), 5 Engineering Drive 1, Off Kent Ridge Crescent, NUS, Singapore 117608, Singapore;A*STAR, Data Storage Institute (DSI), 5 Engineering Drive 1, Off Kent Ridge Crescent, NUS, Singapore 117608, Singapore and School of Electrical and Electronic Engineering, Nanyang Technological Un ...

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2007

Quantified Score

Hi-index 22.14

Visualization

Abstract

This paper is concerned with disturbance rejection for data storage systems which applies microactuator to expand its servo bandwidth. An approach based on the generalized Kalman-Yakubovic-Popov (KYP) lemma together with the Youla parameterization is proposed which allows us to suppress disturbances of particular frequencies within or beyond the servo bandwidth via convex optimization. The rejection of narrowband high-frequency disturbances is achieved by using this approach. Simulation together with implementation results demonstrate the simplicity and effectiveness of the design method as compared with the traditional frequency weighting method.