Working Principle and Magnetic Circuit Analysis of New Modular Permanent Magnet Biased Magnetic Bearing

By replacing the magnetic coil with a permanent magnet material to generate the required biased magnetic field, the magnetic coil is only responsible for establishing the control magnetic field, which greatly reduces the power loss of the magnetic levitation bearing, and therefore is gradually widely used in engineering practice. This paper introduces a new type of permanent magnet biased magnetic bearing, which is different from the traditional radial or axial magnetic bearing, and introduces the idea of modular design, magnetic levitation module can realize the levitation force control for certain point, and through the combination of different ways, it can meet the magnetic levitation support for linear motion and rotating motion objects.