Abstract:The electromagnetic force has the characteristics of multi-dimensional distribution in multi-degree-of-freedom (MDOF) switched reluctance motor (SRM), which can be modelled and actively controlled to achieve the MDOF motion of SRMs. Bearingless switched reluctance motor (BSRM) and linear-rotary switched reluctance motor (LRSRM) are both have the characteristics of MODF motion control, and they have similarities between the distributions, modelling methods and control strategies of their electromagnetic forces. Through comparing similarities between the operating principles of these two kinds of MDOF SRMs, the modelling and control methods of BSRMs obtained before are applied to LRSRM. Therefore, the accurate model and high-performance control of LRSRMs can be implemented more efficiently. The study of LRSRMs can be pushed forward and accelerated, and the research of MDOF SRMs can be further promoted as well. It is expected to promote and accelerate the research of LRSRM, and further improve the theoretical system of MDOF SRM.