[논문]영구자석동기전동기의 부하추정을 통한 센서리스 전환 알고리즘

김동현; 조관열; 김학원

doi:10.6113/tkpe.2021.26.5.349

영구자석동기전동기의 부하추정을 통한 센서리스 전환 알고리즘
Sensorless Transition Algorithm of PM Synchronous Motor by Load Torque Estimation 원문보기

전력전자학회 논문지 = The Transactions of the Korean Institute of Power Electronics, v.26 no.5, 2021년, pp.349 - 356

김동현 (Dept. of Electronic Engineering, Korea Nat'l University of Transportation) , 조관열 (Dept. of Electronic Engineering, Korea Nat'l University of Transportation) , 김학원 (Dept. of Electronic Engineering, Korea Nat'l University of Transportation)

Abstract ▼ AI-Helper

Permanent magnet synchronous motors are mainly used in the traction of electric vehicle and home application products including air-conditioners and refrigerators. For sensorless control without rotor position sensors, I-F control is applied for initial starting at low speeds, and mode is changed to sensorless control when the rotor speed is sufficiently accelerated for estimating rotor position. When the mode is changed to the sensorless control from the open-loop starting, the initial integral value of the speed controller should be considered by load condition; otherwise, the transition to sensorless control may fail. The sensorless transfer algorithm of PM synchronous motor based on load condition for smooth transition is proposed. The performance of the proposed sensorless transfer algorithm was verified by experiments.

주제어

표/그림 (14)

그림 Fig. 1. Start-up algorithm.
그림 Fig. 2. Real & estimated dq axis.
그림 Fig. 3. Block diagram of extended EMF estimator.
그림 Fig. 4. Phase lock loop speed and position estimator.
그림 Fig. 5. Block diagram of sensorless transfer algorithm.
그림 Fig. 6. Current vector and load angle (open loop control).
그림 Fig. 7. Current vector and load angle.
그림 Fig. 8. Experimental setup.
표 TABLE I IPMSM PARAMETERS
그림 Fig. 9. Current command and feedback current.
그림 Fig. 10. Current command and estimated current.
그림 Fig. 11. Estimated torque.
그림 Fig. 12. Speed reference and real speed (conventional method).
그림 Fig. 13. Speed reference and real speed (proposed method).

참고문헌 (12)

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상세보기
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원문보기 상세보기
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상세보기
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상세보기
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상세보기
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