Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Repetitive Control of Track Following Error in a Hard Disk Drive

하드 디스크 드라이브의 반복 추종 오차 제어

  • Jeon, Doyoung ;
  • Jong, Ilyong
  • 전도영 (서강대학교 기계공학과) ;
  • 정일용 (서강대학교 전자공학과 대학원)
  • Published : 1996.05.01
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Abstract

This paper suggests a servo control algorithm to reduce the repeatable tracking error which is not explicitly taken into account in the design of a conventional PID controller of a computer hard disk drive. The robust stability of the repetitive control system with multiplicative modelling error is analyzed, and the controller was implemented using a fixed point DSP(Digital Signal Processor). Experimental results show that the repetitive errors are suppressed effectively by the proposed controller.

Keywords