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Graduate School of Ajou University
Department of Space Electronics Information Engineering
3. Theses(Master)
매입형 영구자석 동기 전동기의 PLL을 이용한 향상된 회전자 위치 추정
- Alternative Title
- An Improved Rotor Position Estimation using PLL of Interior Permanent Magnet Synchronous Motor
- Author(s)
- 한동엽
- Alternative Author(s)
- Dong Yeob Han
- Advisor
- 이교범
- Department
- 일반대학원 우주전자정보공학과
- Publisher
- The Graduate School, Ajou University
- Publication Year
- 2016-08
- Language
- kor
- Keyword
- 센서리스; 매입형 영구자석 동기 전동기; 위치 추정; PLL
- Alternative Abstract
- 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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- Graduate School of Ajou University > Department of Space Electronics Information Engineering > 3. Theses(Master)
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