两类多自由度开关磁阻电机原理与控制的类比

多自由度(Multi-degree-of-freedom,MDOF)开关磁阻电机(Switched reluctance motor,SRM)中的电磁力具有多维分布特征,对其建模和主动控制可实现该类电机的多自由度运行。无轴承开关磁阻电机(Bearingless switched reluctance motor,BSRM)和直线旋转开关磁阻电机(Linear-rotary switched reluctance motor,LRSRM)均具有多自由度运动控制的特点,其电磁力的分布规律、建模方法和控制策略具有一定的相似性。通过对比这两类多自由度开关磁阻电机工作原理的相似性,将前期BSRM数学模型和控制方法的研究成果进一步应用于LRSRM中,实现了LRSRM的准确建模和高性能控制,为推动和加速LRSRM的研究提供参考,以期进一步完善多自由度开关磁阻电机的研究理论体系。

Analogy Study of Two Types of Multi-Degree-of-Freedom Switched Reluctance Motors

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.