Variable-performance positioning law for hybrid-type stepper motors via active damping injection and disturbance observer

Seok Kyoon Kim, Choon Ki Ahn

Research output: Contribution to journalArticlepeer-review

Abstract

This brief proposes an advanced positioning law for hybrid-type stepper motors with two main features: a) a combination of pole-zero cancellation-based proportional-integral control with disturbance observers and b) a variable manifold forced to be exponentially convergent by the proposed control law. The parameter and load uncertainties are also explicitly handled in the controller design task. The practical improvement is confirmed with experimental evidence using a 10-W stepper motor controlled by two dual half-bridge drivers and a 32-bit digital signal processor.

Original languageEnglish
Article number9183999
Pages (from-to)1308-1312
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
Volume68
Issue number4
DOIs
Publication statusPublished - 2021 Apr

Keywords

  • Active damping
  • Disturbance observer
  • Pole-zero cancellation
  • Position control
  • Stepper motor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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