Output-feedback Speed-tracking Control without Current Feedback for BLDCMs based on Active-damping and Invariant Surface Approach

Jae Kyung Park, Jae Hyun Lee, Seok Kyoon Kim, Choon Ki Ahn

Research output: Contribution to journalArticlepeer-review

Abstract

With the proposed technique, a controlled brushless DC motor can robustly track the desired trajectory, while estimating angular acceleration, to remove current feedback. The controller design task does not require true motor parameters and load information using the standard disturbance observer design approach. The first feature is that a parameter-independent angular acceleration observer is devised to avoid direct differentiation of the speed measurement. The second one is that active-damping pole-zero cancellation control stabilizes the surface, thereby describing the desired first-order tracking system dynamics. The prototype 50-W BLDCM control system experimentally evaluates the speed-tracking and positioning performances.

Original languageEnglish
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Acceleration
  • Active damping.
  • BLDC
  • Convergence
  • Cutoff frequency
  • Damping
  • Frequency control
  • Observer
  • Observers
  • Pole-zero cancellation
  • Speed-tracking
  • Stators

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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