Journal of Power Electronics

  • 제21권5호
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  • Pages.804-814
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  • 2021
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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Disturbance rejection speed sensorless control of PMSMs based on full order adaptive observer

  • Xu, Yanping (School of Electrical Engineering, Xi'an University of Technology) ;
  • Wang, Li (Xi'an Key Laboratory of Power Electronic Devices and High Efficiency Power Conversion) ;
  • Yuan, Weiwen (School of Electrical Engineering, Xi'an University of Technology) ;
  • Yin, Zhonggang (School of Electrical Engineering, Xi'an University of Technology)
  • 투고 : 2020.09.25
  • 심사 : 2021.02.02
  • 발행 : 2021.05.20
⟨ 이전 논문 다음 논문 ⟩

초록

Speed sensorless control systems with a full order adaptive observer of the permanent magnet synchronous motor (PMSM) have received wide attention due to their advantages of simple structure, easy implementation and strong universality. However, they are sensitive to the load disturbances, which affects the speed performance of the control system. To solve this problem, this paper presents a disturbance rejection speed sensorless control of PMSMs based on full order adaptive observer to improve robustness against load disturbances. A load disturbance observer (LDO) is used to observe load disturbances, which feed-forward compensates the q-axis current to reduce the speed drop and accelerate the recovery time. Experimental results show that the proposed method has better anti-interference capability than full order adaptive speed sensorless control under the same steady-state performance.

키워드

과제정보

This work is supported by the Xi'an Key Laboratory of Power Electronic Devices and High Efficiency Power Conversion (2019219814SYS013CG035).

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