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介绍了永磁偏置的混合磁悬浮轴承的工作原理。导出了主轴系统混合磁悬浮轴承的悬浮合力，得到了它的最大承载力条件及其设计计算公式。建立了混合磁悬浮轴承结构参数的设计计算理论，并在最后得出结论：永磁偏置混合磁悬浮轴承因无偏置绕组而体积小、功耗低；增加永磁体内部磁动势，可增大轴承的刚度，提高其承载能力以及降低控制功耗。
The working principle of hybrid magnetic suspension bearing with permanent magnet bias is introduced. The levitation force of the hybrid system of the main shaft system is derived. The maximum bearing capacity of the system and its design formula are obtained. The design and calculation theory of the structure parameters of the hybrid magnetic suspension bearing is established. Finally, the conclusion is drawn that the permanent magnet bias hybrid magnetic suspension bearing has the advantages of small volume and low power consumption due to no bias winding. Increasing the internal magnetomotive force of the permanent magnet can increase Bearing stiffness, increase its carrying capacity and reduce control power consumption.