Output-Feedback Proportional-Type Positioning Technique for Servo Systems via Speed-Loop Adaptation Mechanism

Seok Kyoon Kim, Choon Ki Ahn

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This brief presents a simple proportional-type position regulator for servo systems independent from the actual servo system parameter information without speed and current feedback requirements. First, the extended state observer embedded in the modified gain structure implements the parameter-independent speed and its acceleration estimation mechanism, making it possible to design the output-feedback system structure. Second, the inner-loop controller consists of the speed-loop adaptation algorithm and pole-zero cancellation acceleration error stabilizer to maintain the closed-loop positioning performance at the desired level. The experimental validation is included to demonstrate the feasibility of the proposed solution using the experimental platform consisting of QUBE-servo2 and myRIO-1900.

    Original languageEnglish
    Pages (from-to)1
    Number of pages1
    JournalIEEE Transactions on Circuits and Systems II: Express Briefs
    DOIs
    Publication statusAccepted/In press - 2022

    Bibliographical note

    Publisher Copyright:
    IEEE

    Keywords

    • Convergence
    • Cutoff frequency
    • Damping
    • loop adaptation
    • observer
    • Observers
    • pole-zero cancellation
    • positioning
    • Rotors
    • Servo systems
    • Servomotors
    • Stators

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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