High Speed Direct Current Control for the 8/10 Bearingless SRM

Guan, Zhongyu; Ahn, Ji Hyeon

doi:10.5370/kiee.2012.61.5.690

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…In order to solve the above challenges of traditional BSRMs, a class of BSRMs with hybrid stator teeth such as the 8/10 type, 12/10 type and 12/14 type have been developed in recent years [18][19][20][21]. In this type of BSRM, its stator consists of wide and narrow teeth; a radial force coil and a torque coil are wound on each wide and narrow tooth, respectively.…”

Section: Introductionmentioning

confidence: 99%

Control and Analysis of a Hybrid-Rotor Bearingless Switched Reluctance Motor with One-Phase Full-Period Suspension

Liu,

Wu,

Zhang

et al. 2024

Symmetry

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In the traditional control scheme of a 12/8-pole bearingless switched reluctance motor (BSRM), radial force and torque are usually controlled as a compromise due to the conflict between their effective output areas. Additionally, each phase requires individual power circuits and is excited in turn to produce a continuous levitation force, resulting in high power device requirements and high controller costs. This paper discusses a 12/8-pole single-winding hybrid-rotor bearingless switched reluctance motor (HBSRM) with a hybrid rotor consisting of cylindrical and salient-pole lamination segments. The asymmetric rotor of the HBSRM slightly increases the complexity of its structure and magnetic circuit, but makes it possible to generate the desired radial force at any rotor angular position. A control scheme for the HBSRM is developed to utilize the independent excitation of the four windings in one phase to generate the desired levitation force at any rotor angular position, and it requires only half the number of power circuits used in the conventional control scheme of a 12/8-pole single-winding BSRM. Different from the average torque chosen to be controlled in traditional methods, this scheme directly regulates the instantaneous total torque produced by all excited phases together and presents a current algorithm to optimize the torque contribution of each phase so as to reduce torque pulsation, and the improved performance of this bearingless motor is finally validated by simulation analysis.

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Section: Introductionmentioning

confidence: 99%