Phase stabilized design of a hard disk drive servo using the complex lag compensator

William Messner, Roberto Oboe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper introduces a new technique for the Phase Stabilized Design (PSD) of a HDD servo, based on the use of complex lag compensators. Such compensators have several benefits compared to standard ones and they offer additional degrees of freedom in control design. This paper presents a case study comparing the performance of the PSD using the complex lag compensator with the performance of a PID plus notch filter design, and the performance of a PSD using a real lag compensator. The designs are performed for a realistic model of a disk drive derived from experimental data. The new approach significantly outperforms the other with respect to step response, rejection of disturbance response at the plant input, and rejection of periodic and windage disturbances.

Original languageEnglish
Title of host publicationProceedings of the American Control Conference
Pages1165-1170
Number of pages6
Volume2
Publication statusPublished - 2004
EventProceedings of the 2004 American Control Conference (AAC) - Boston, MA, United States
Duration: Jun 30 2004Jul 2 2004

Other

OtherProceedings of the 2004 American Control Conference (AAC)
CountryUnited States
CityBoston, MA
Period6/30/047/2/04

ASJC Scopus subject areas

  • Control and Systems Engineering

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  • Cite this

    Messner, W., & Oboe, R. (2004). Phase stabilized design of a hard disk drive servo using the complex lag compensator. In Proceedings of the American Control Conference (Vol. 2, pp. 1165-1170)