Dong-woo Seo, “반복적인 영전압 벡터를 사용한 영구자석 동기 전동기 센서리스 구동 시스템의 구동 재개 방법,” 아주대학교 공학석사 학위 논문, 2019. > Paper

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Thesis Dong-woo Seo, “반복적인 영전압 벡터를 사용한 영구자석 동기 전동기 센서리스 구동 시스템의 구동 재개 방법,” 아주대학교 공학석사 학위 논문, 2019.

2019

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This paper presents an improved flying restart method for reliable sensorless permanent-magnet synchronous motor (PMSM) drive

system using repetitive zero voltage vectors. In order to restart the sensorless PMSM drive system, the estimation method for initial

rotor position and speed is necessary due to the absence of sensor. The initial rotor position and speed can be estimated by using

current vector generated after applying zero voltage vector with the rotating PMSM. However, when the restarting method is

implemented for the industrial PMSM drive system, there are many difficulties to measure accurate current vector due to harmonic

components and electromagnetic interference (EMI) by switching operation. Therefore, in this paper, the improved flying restart method

using repetitive zero voltage vectors is proposed in order to implement a reliable and robust operation of the sensorless PMSM drive

system by the inverter. The effectiveness of the proposed method is verified by simulation and experimental results.

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