Analysis on coupling effect of 2-DOF direct drive induction motor based on 3-D model

Si, Jikai; Ai, Liwang; Feng, Haichao; Zhu, Yun Ming; Hu, Yihua

doi:10.1109/icems.2014.7013653

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…Compared with other 2DOFM, the 2DOFDDIM has the advantages of compact structure, simple assembly and easy control. Some work has been done on the coupling effect of this machine (Si et al , 2017b, 2017c, 2014). In Si et al (2017b, 2017c), the thrust, torque and speed of the 2DOFDDIM are compared and analyzed, which proves that the 2DOFDDIM has coupling effect.…”

Section: Introductionmentioning

confidence: 99%

“…In Si et al (2017bSi et al ( , 2017c, the thrust, torque and speed of the 2DOFDDIM are compared and analyzed, which proves that the 2DOFDDIM has coupling effect. To consider the influence of coupling effect on the motor, the coupling factors are introduced to modify the torque and thrust of the 2DOFDDIM (Si et al, 2014). Overall, the coupling effect reduces the output torque and thrust of the 2DOFDDIM.…”

Section: Introductionmentioning

confidence: 99%

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Normal force calculation of two-degree-of-freedom direct drive induction motor considering coupling effect

Nie

Meng

Wang

et al. 2023

COMPEL

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Purpose The purpose of this study is to calculate the normal force of a two degree of freedom direct drive induction motor considering coupling effects based on an analytical model. Compared with the traditional single degree of freedom motor, normal force characteristics of two-degree-of-freedom direct drive induction motor (2DOFDDIM) is affected by coupling effect when the machine is in a helical motion. To theoretically explain the influence mechanism of coupling effect, this paper conducts a quantitative analysis of the influence of coupling effect on normal force based on the established analytical model of normal force considering coupling effect. Design/methodology/approach Firstly, the normal forces generated by 2DOFDDIM in linear motion, rotary motion and helical motion are investigated and compared to prove the effect of the coupling effect on the normal force. During this study, several coupling factors are established to modify the calculation equations of the normal force. Then, based on the multilayer theoretical method and Maxwell stress method, a novel normal force calculation model of 2DOFDDIM is established taking the coupling effect into account, which can easily calculate the normal force of 2DOFDDIM under different motions conditions. Finally, the calculation results are verified by the results of 3D finite element model, which proves the correctness of the established calculating model. Findings The coupling effect produced by the helical motion of 2DOFDDIM affects the normal force. Originality/value In this paper, the analytical model of the normal force of 2DOFDDIM considering the coupling effect is established, which provides a fast calculation for the design of the motor.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Normal force calculation of two-degree-of-freedom direct drive induction motor considering coupling effect

Nie

Meng

Wang

et al. 2023

COMPEL

Self Cite

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“…The 2DoF direct‐drive induction motor (2DoFDDIM) is another 2DoF induction motor in which the stator is composed by two arc‐shaped stators [15]. There is also coupling effect involved [16].…”

Section: Introductionmentioning

confidence: 99%

Static coupling effect of a two‐degree‐of‐freedom direct drive induction motor

Xie

et al. 2017

IET Electric Power Applications

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Two-degree-of-freedom motors are capable of producing linear, rotary, and helical motion, and thus have widespread applications in special industries. In this paper, a new concept-static coupling effect-is studied in the 2-degree-of-freedom direct drive induction motor (2DoFDDIM). The proposed approach is based on the image method and the 3D finite element method. The image method model is established to analyse its reasons and predict the main effects, which are then verified by the proposed 3D finite element static coupling model and experiments. The induced voltages and currents are produced in the static part and induced torque or force is obtained, even though the static part is not energized. It is concluded that the static coupling effect increases with the supply frequency and is influenced by the stator winding configuration. Thus, the existence of the static coupling effect is confirmed, which must be taken into account in future optimization and precise control of the 2DoFDDIM.Index Terms: induction motor, image method, static coupling effect, 3D finite element method, 2-degreeof-freedom.

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Analysis of a Double-Stator Rotary Linear Permanent Magnet Motor with Phase-Group Concentrated-Coil Windings

Xu,

Zhao,

Wang

et al. 2023

2023 26th International Conference on Electrical Machines and Systems (ICEMS)

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Analysis on coupling effect of 2-DOF direct drive induction motor based on 3-D model

Cited by 4 publications

References 8 publications

Normal force calculation of two-degree-of-freedom direct drive induction motor considering coupling effect

Normal force calculation of two-degree-of-freedom direct drive induction motor considering coupling effect

Static coupling effect of a two‐degree‐of‐freedom direct drive induction motor

Analysis of a Double-Stator Rotary Linear Permanent Magnet Motor with Phase-Group Concentrated-Coil Windings

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