전력전자학회논문지 (The Transactions of the Korean Institute of Power Electronics)

  • 제27권6호
  • /
  • Pages.481-488
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  • 2022
  • /
  • 1229-2214(pISSN)
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  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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2상 하이브리드 스테핑 모터의 벡터 제어 시 초기 각 오차 및 토크 리플 보상

Compensation of Initial Position Error and Torque Ripple in Vector Control of Two-phase Hybrid Stepping Motors

  • Do-Hyun, Kim (Dept. of BIT Medical Convergence, Electrical and Electronic Convergence Engineering, Kangwon Nat'l University) ;
  • Sang-Hoon, Kim (Dept. of BIT Medical Convergence, Electrical and Electronic Convergence Engineering, Kangwon Nat'l University)
  • 투고 : 2022.07.02
  • 심사 : 2022.08.05
  • 발행 : 2022.12.20
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초록

This study proposes compensation methods for the initial position error and torque ripple in vector control of two-phase hybrid stepping motors. Stepping motors have an asymmetrical structure due to misalignment, such as the eccentricity generated by the manufacturing and assembly process. When vector control is applied using the position information measured by an incremental encoder attached to the rotor shaft of such stepping motors, the following problems occur. First, an initial position error occurs during the forced excitation process for the initial rotor position alignment. Second, torque ripple corresponding to the mechanical rotation frequency is generated. In this study, these non-ideal phenomena that occur in vector control of the stepping motor are analyzed, and compensation methods are proposed to eliminate them. The validity of the proposed initial position error and torque ripple compensation methods is verified through experiments on a two-phase hybrid stepping motor drive system.

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참고문헌

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