Tae-Min Yoon, “고주파 전압 신호 인가 방법을 통한 간소화된 IPMSM의 회전자 위치 추정 방법,” 아주대학교 공학석사 학위 논문, 2015. > Paper

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Thesis Tae-Min Yoon, “고주파 전압 신호 인가 방법을 통한 간소화된 IPMSM의 회전자 위치 추정 방법,” 아주대학교 공학석사 학위 논문, 2015.

2015

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This paper presents a simple algorithm for estimation of the rotor position. The injected high frequency voltage is a sinusoidal

voltage and is injected into the stator of a motor. An interior permanent magnet synchronous motor (IPMSM) has spatial saliency

because the d-axis inductance and q-axis inductance are different from each other. The injected high frequency voltage is influenced

by saliency. Therefore, the rotor position is included in the stator current of the motor. The rotor position is estimated using filters

but the estimated rotor position has error due to the time delay. Therefore, the proposed method decreases the number of filters

and uses different synchronous reference frame transformation (SFT) to extract the rotor position error between the estimated value

and actual value. The simulation and experimental results present the effectiveness of the proposed method by showing waveforms

of the rotor speed and position with load conditions.

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