대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2006년도 제37회 하계학술대회 논문집 B
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- Pages.783-784
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- 2006
매입형 영구자석 전동기의 파라미터 검증을 위한 인덕턴스 산정
The Calculation of Inductance to verify the Parameters in Interior Permanent Magnet Motor
- Lee, Suk-Hee (Changwon National University) ;
- Lee, Sang-Ho (Changwon National University) ;
- Bahn, Ji-Hyoung (Changwon National University) ;
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Hong, Jung-Pyo
(Changwon National University)
- 발행 : 2006.07.12
초록
In case of a difference exist between the experimental value and estimated value of back-emf, there can be a difference of turn number or residual flux density of permanent maget of the motor. In order to presume the turn number, the average length for each coil is used to calculate the resistance. However in producing the motor, doc to the tension of coil, the outer diameter of coil becomes smaller, and then the resistance estimated by average length for each coil is not correct. Therefore in this paper, through the comparison of experiment value and estimated value of inductance, a method of presuming the turn number and PM's residual flux density of an IPM motor is presented. The inductance of IPM motor changes with the rotor position, therefore the rotor part is taken out and then the inductance in open circuit condition is measured. In the analytical calculation, 3D FEM(Finite Element Method) is used, which can consider the leakage flux of end turns in frinzing effect.
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