TY - GEN
T1 - Measurement method of the B-H characteristics in open circuit for Nd-Fe-B magnet
AU - Hieda, Naoya
AU - Akatsu, Kan
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - Variable Flux Permanent Magnet Synchronous Machine(VFPMSM) has been proposed for the purpose of high efficiency motor. However, in order to perform magnetization control of VFPMSM and optimum design, it is necessary to measure the operating point of the permanent magnet. Since the motor is located in the open magnetic circuit, the effect of the demagnetization field cannot be ignored. In general, the demagnetization coefficient is calculated from the permeance of the magnetic circuit, the demagnetization field correction is performed. However, there is a problem that the formula is complicated and errors between calculated value and experimental values are existed. Therefore, in this paper, we discuss a demagnetization field correction method using the slope of the hysteresis curve. The purpose of this study is to obtain the operating point of the permanent magnet under the motor driven condition by simple and accurate demagnetization field correction.
AB - Variable Flux Permanent Magnet Synchronous Machine(VFPMSM) has been proposed for the purpose of high efficiency motor. However, in order to perform magnetization control of VFPMSM and optimum design, it is necessary to measure the operating point of the permanent magnet. Since the motor is located in the open magnetic circuit, the effect of the demagnetization field cannot be ignored. In general, the demagnetization coefficient is calculated from the permeance of the magnetic circuit, the demagnetization field correction is performed. However, there is a problem that the formula is complicated and errors between calculated value and experimental values are existed. Therefore, in this paper, we discuss a demagnetization field correction method using the slope of the hysteresis curve. The purpose of this study is to obtain the operating point of the permanent magnet under the motor driven condition by simple and accurate demagnetization field correction.
KW - Demagnetization field correction
KW - Operating point of the permanent magnet
KW - Variable Flux
KW - style
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U2 - 10.1109/ICEMS.2019.8921989
DO - 10.1109/ICEMS.2019.8921989
M3 - Conference contribution
AN - SCOPUS:85077112157
T3 - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
BT - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Y2 - 11 August 2019 through 14 August 2019
ER -