Thứ hai, 04/08/2025 | 07:36
ABSTRACT In this paper, the electromagnetic properties of external rotor permanent magnet motors are analyzed and modeled. The magnetic flux density at the magnet's working point has a significant effect when interacting directly with the armature current to produce torque. It is analyzed according to magnetic material properties and number of conductors in the motor stator windings. Both factors are required to accurately predict the magnetic flux and moment distribution when demagnetized. The author focuses on analyzing the magnetic flux density at the working point to limit the risk of complete demagnetization leading to motor damage. Finite element analysis (FEM) method is used to verify the analytical model. The obtained results are a key factor in optimal magnet design. Keywords: Brushless direct current motor, the magnetic flux density at the magnet's working point, conductor,hard magnetic materials,demagnetization. |
Phát triển doanh nghiệp khoa học và công nghệ (KHCN) là chủ trương lớn của Đảng, Nhà nước nhằm nâng cao chất lượng hiệu quả sản xuất kinh doanh, tạo động lực bền vững cho phát triển kinh tế - xã hội trong cuộc cách mạng công nghiệp 4.0.
01/08/2025