Electromagnetic design of a high torque density permanent magnet motor for biomimetic robot

Wu, Zhang; Yu, Zhangguo; Gao, Junyao; Zhang, Weimin; Ming, Aiguo; Zhu, Min

doi:10.1109/cbs.2017.8266084

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…Robots used to assist humans must be precise, small, and lightweight. Therefore, robot motors require both high-torque performance within a limited space and high controllability [5][6][7][8]. Induction motors and reluctance motors cannot easily meet high-torque density requirements.…”

Section: Introductionmentioning

confidence: 99%

Influence of a novel flux‐absorbing structure on the performance of a surface‐mounted permanent‐magnet motor with overhang

Kwon

Yeo

Jung

2019

IET Electric Power Applications

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The demand for surface-mounted permanent-magnet (SPM) motors with high torque and power densities has increased as these motors are becoming more widely used in applications requiring high performance in limited spaces, such as electric vehicles and robot arms. Some studies have increased the torque and power densities, such as hybrid flux permanentmagnet motors utilising radial and axial magnetic fluxes, dual-rotor and dual-stator permanent-magnet motors. Although these motors offer high performance, there are some problems such as low productivity and poor applicability to small motors have arisen due to their complicated structures. An overhang structure can be a simple and effective means of solving the aforementioned problems. However, the overhang effects do not increase linearly but tend to converge as the length of the overhang increases. Therefore, a novel flux-absorbing structure (FAS) that effectively enhances the overhang effects of SPM motors even in cases with considerable overhang was proposed. The magnetic flux path from the overhang to the stator can be efficiently improved via the proposed FAS. Thereby, the performances of a SPM motor can be effectively enhanced when the FAS is adopted. The effectiveness of the proposed FAS was verified via a 3D finite-element analysis and in experiments.

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Section: Introductionmentioning

confidence: 99%