关键词: 混合悬浮磁铁, 等效磁路, 磁路积分法, 漏磁系数

Abstract: The hybrid suspension magnet of permanent magnet and electromagnet reduces the excitation current of
electromagnetic components by incorporating permanent magnets, effectively addressing issues inherent to pure
electromagenet suspension magnet, such as high energy consumption, severe heating, and limited carrying capacity. It has
now become a key research focus in the field of magnetic levitaion. Based on the equivalent magnetic circuit, this article
derived the mathematical model of equivalent magnetic reluctance of each magnetic circuit, analyzed the relevant parameters
that affect the leakage coefficient. By the magnetic circuit integration method, this article conducts two-dimensional
simulation model, studies the influence of structural parameters such as the thickness and height of the permanent magnet,
the magnetic isolation bridge, the length of the air gap, and the height of the magnetic yoke core on the leakage coefficient
of the permanent magnet, which can provide some guidance for the structure design of hybrid suspension magnet, improve
the utilization of permanent magnet and make the magnetic circuit structure design more reasonable.