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이정흠(Jeong-Hum Lee),최창호(Chang-Ho Choi),김영석(Young-Seok Kim),김민규(Min-Kyu Kim),왕효진(Hyo-Jin Wang),김윤현(Yun-Hyun Kim) 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-
An interior permanent magnet synchronous motor (IPMSM) is receiving increased attention for many industrial applications because of its high torque to inertia ratio, superior power density, and high efficiency. IPMSM is necessary to use the accurate information of the inductance for the precise torque control owing to the reluctance torque. This paper presents two method to measure the each-axis inductance. The first method uses the peak current that is measured by applying the pulsewise voltage on the each position of IPMSM. The second uses the hysteresis loop of the flux and current measured by applying the positive and negative pulsewise voltage alternately on the each-axis.