Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Automatic Velocity Ripple Compensation Algorithm by Feedforward Control

피드포워드를 이용한 속도리플 자동 보상 알고리즘

  • Han, Ji Hee (Department of Mechanical System Design Engineering, Seoul National Univ. of Sci. &Tech.) ;
  • Kim, Jung Han (Department of Mechanical System Design Engineering, Seoul National Univ. of Sci. &Tech.)
  • 한지희 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 김정한 (서울과학기술대학교 기계시스템디자인공학과)
  • Received : 2013.01.23
  • Accepted : 2013.07.12
  • Published : 2013.09.01
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Abstract

In order to improve the speed performance of the direct drive mechanical systems, a comprehensive analysis of the velocity ripples of blushless DC motors should be required. Every motor has a certain level of torque ripples when it generates power, and the generated torque ripple also makes the velocity ripples in the final output stage in speed control system. In this paper, a novel algorithm for reducing velocity ripples is proposed based on the modeling of torque ripples for BLDC motors. Various algorithms have been made for torque ripples, but usually they should be installed inside the amplifier logic, result in the difficulties of flexibility for various kinds of torque ripples. The proposed algorithm was developed for being ported in the controller not the amplifier, and it has the capability of the automatic compensation adjustment. The performance of the proposed algorithm was verified by effective simulations and experiments.

Keywords

References

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Cited by

  1. Design of Velocity Ripple Controller using Phase Compensation Feedforward Control vol.31, pp.8, 2014, https://doi.org/10.7736/KSPE.2014.31.8.705