Dong Yeob Han, “매입형 영구자석 동기 전동기의 PLL을 이용한 향상된 회전자 위치 추정,” 아주대학교 공학석사 학위 논문, 2016. > Paper

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Thesis Dong Yeob Han, “매입형 영구자석 동기 전동기의 PLL을 이용한 향상된 회전자 위치 추정,” 아주대학교 공학석사 학위 논문, 2016.

2016

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This paper proposes a simple sensorless control method based on an extended electromotive force (EEMF) models for an interior

permanent magnet synchronous motor. The phase locked-loop (PLL) is used to obtain the phase angle of the grid. The d-axis voltage

in a synchronous reference frame contains the information of the grid angle. Since the EEMF contains the position information of a

motor, the proposed algorithm estimates the position and speed of a motor using a PLL based on an EEMF. The EEMF can be

estimated by using a lease-order observer. Because the calculation burden is reduced by using the proposed algorithm without the

fractional expression, the control period can be de decreased. The simulation and experiment results are provided to verify the

effectiveness and performance of the proposed sensorless control method with no-load and load conditions.

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