Characteristics Analysis of the Motions of the Two-Degree-of-Freedom Direct Drive Induction Motor

Xie, Lujia; Si, Jikai; Hu, Yihua; Feng, Haichao; Ni, Kai

doi:10.1109/tie.2019.2898590

Cited by 14 publications

(7 citation statements)

References 18 publications

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“…There are usually the following methods: (1) Calculate the mutual inductance between the linear unit winding and the rotation unit winding through finite element simulation. 12,[14][15][16] (2) Conduct magnetic field analysis using the equivalent magnetic circuit method. 17,18 The motor structure proposed in this paper also exhibits a small amount of coupling behavior.…”

Section: Introductionmentioning

confidence: 99%

“…In Mendrela, 11 an axial parallel‐type double‐armature induction LRM is initially proposed, which succeeded in decoupling the traveling wave magnetic field from the rotating magnetic field 3 . Subsequently, additional axial parallel‐type double‐armature LRMs were proposed in Xie et al 12 While these LRMs eliminate energy coupling behavior from propagating through the magnetic field, the excessively long axial length limits the system integration and thrust/torque density. Although the radial parallel structure improves the integration of the motor, the magnetic coupling and motion coupling effects may make the energy coupling behavior more complex.…”

Section: Introductionmentioning

confidence: 99%

“…The magnetic circuit coupling behavior of two‐degree‐of‐freedom motors is difficult to avoid, but it can be weakened as much as possible. There are usually the following methods: (1) Calculate the mutual inductance between the linear unit winding and the rotation unit winding through finite element simulation 12,14–16 . (2) Conduct magnetic field analysis using the equivalent magnetic circuit method 17,18 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Equivalent circuit modeling and optimization design for a novel double‐stator linear‐rotary switched reluctance motor

Qi,

Bu,

et al. 2023

Circuit Theory & Apps

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SummaryThe energy coupling behavior is propagated through the magnetic field and would seriously affect the operation performance of two‐degree‐of‐freedom motion system based on linear‐rotary motor. This paper proposes a novel double‐stator linear‐rotary switched reluctance motor (DSLR‐SRM) to suppress the energy coupling behavior. First, the structure and operation principles of DSLR‐SRM are presented. The two stators of DSLR‐SRM are radially arranged to perform the independent magnetic circuit and suppress the energy coupling behavior through the magnetic field. Then, an equivalent circuit model is established to shorten the modeling and calculation time. It could be found that the energy coupling behavior directly affects the torque and force performance. Next, the sensitivity of the DSLR‐SRM dimensions is developed. Meanwhile, the dimensions of DSLR‐SRM are optimized to enhance the torque and force output via TOPSIS decision‐making. Finally, the validity of equivalent circuit modeling analysis and optimization results are verified through three‐dimensional finite element model.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Equivalent circuit modeling and optimization design for a novel double‐stator linear‐rotary switched reluctance motor

Qi,

Bu,

et al. 2023

Circuit Theory & Apps

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show abstract

“…In such case, the effective flux for each motion is decoupled by the corresponding stator. The machine structure combines the conventional rotary and linear machine along axial [5]- [7], circumferential [8], [9] or radial direction [10]- [12]. Thus, the performance of two motions, namely rotary and linear motions, can be analyzed and optimized separately in two-dimensional (2D) model [13], [14], which is timesaving for machine design.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Two Degree-of-Freedom Rotary-Linear Machines With Permanent-Magnet Mover for High Dynamic Performance

Cai

Zhou

et al. 2022

IEEE Access

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This paper analyzes and evaluates various topologies of yokeless rotary-linear (RL) machine with permanent-magnet (PM) mover targeting for the achieving high dynamic performance. For the conventional yokeless RL machines, the single-stator topology features limited slot area for armature winding excited for both motions, and the coupled magnetic fields of both motions requires complex control strategy. In order to mitigate these issues, a double-stator RL machine with hybrid PMs array, which adopts the PMs with six magnetization directions, is proposed in this paper. An improved PMs array is introduced for the double-stator topology to achieve decoupled control for both motions. In addition, an analytical model of the radial flux density is derived to reveal the characteristics of the magnetic fields in different topologies. The parametric studies towards key dimensions are conducted to provide design guidelines and obtain the optimal design. Finally, the electromagnetic performances of the proposed design are compared systematically with the conventional single-stator counterparts. It is revealed that the proposed topology can enhance the performances in both motions, namely rotary and linear motions.

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“…The design procedure of a brushless direct current (BLDC) RotLin motor has been elaborated but the coupling effect between the linear movement and the rotation of the motor could negatively influence its performance, as the linear part and the rotary part can be influenced by each other and the control of the motor could be difficult [5]. An induction RotLin motor was introduced in Si's paper [6] and discussed the end effect [7,8], with design details presented in these pieces of literature. The coupling effect mentioned has also not been addressed yet for the motor.…”

Section: Introductionmentioning

confidence: 99%

Design and Control of a Permanent Magnet RotLin Motor for New Foldable Photovoltaic Units

Zou

Cheng

2019

Energies

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In this study, a new permanent magnet rotary-linear (RotLin) motor is proposed for foldable photovoltaic units. Firstly, the mechanical structure, operation principles and magnetic circuits of the motor are introduced, and a design procedure elaborated the parameters calculation in the linear part and the rotary part. Finite element method (FEM) is used to analyze the magnetic field of the motor, and linear force outputs and torque outputs are obtained. Secondly, a control scheme is designed for the prototype of the motor including the position control and the speed control. The deformation on the mover and the magnetic coupling effect between the linear part and the rotational part are discussed. Finally, experimental results show that this motor can simultaneously realize a linear movement with continuous rotation. The linear poisoning accuracy can achieve 0.4 µm and the angular speed can be controlled with steady errors less than 3 rpm, proving the effectiveness of the proposed RotLin motor.

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Characteristics Analysis of the Motions of the Two-Degree-of-Freedom Direct Drive Induction Motor

Cited by 14 publications

References 18 publications

Equivalent circuit modeling and optimization design for a novel double‐stator linear‐rotary switched reluctance motor

Equivalent circuit modeling and optimization design for a novel double‐stator linear‐rotary switched reluctance motor

Comparative Study of Two Degree-of-Freedom Rotary-Linear Machines With Permanent-Magnet Mover for High Dynamic Performance

Design and Control of a Permanent Magnet RotLin Motor for New Foldable Photovoltaic Units

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