Modeling and Static Analysis of Primary Consequent-Pole Tubular Transverse-Flux Flux-Reversal Linear Machine
Abstract
:1. Introduction
2. Structure and Principle
2.1. Structure of the Primary Consequent-Pole TTFFRLM
2.2. Working Principle and Topology Structure of the Primary PM Consequent-Pole TTFFRLM
3. Mathematical Model Analysis based on Magnetic Circuit Method
3.1. Equivalent Magnetic Circuit Model of the Unit Machine and No-Load Back-EMF
3.2. Electromagnetic Thrust Force
4. Equivalent Two-Dimensional Finite Element Method
4.1. Magnetic Field Analysis of the Unit Machine
4.2. Harmonic Analysis of the No-Load Back-EMF
4.3. Detent Force and Electromagnetic Thrust Force
5. Test Results and Analysis of the Prototype
6. Conclusions
- (1)
- The primary is easily manufactured, and the secondary is only composed of magnetically conductive iron cores, which can reduce the application cost of the long stroke drive systems.
- (2)
- The dual N poles type of the PMs distributed in the circumferential direction can reduce circumferential leakage magnetic flux and improve the utilization ratio of PM.
- (3)
- When compared with conventional TTFFRLM, the proposed machine can save half the amount of PMs. Meanwhile, the electromagnetic thrust force ripple is much smaller.
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Parameter(Unit) | Symbol | Value |
---|---|---|
Outer diameter (mm) | Do | 100 |
Internal diameter (mm) | Di | 54 |
Primary iron core length (mm) | L | 60 |
Minimum mechanical airgap (mm) | g | 1 |
Pole-pitch (mm) | τ | 15 |
PM thickness (mm) | hpm | 3 |
PM width (mm) | wpm | 10 |
Primary iron core unit thickness (mm) | hp | 15 |
The width of the tooth (mm) | ws | 10 |
The length of the short tooth (mm) | lts | 15.2 |
The length of the long tooth (mm) | ltl | 18.2 |
The width of the notch (mm) | wn | 4 |
The bottom width of the slot (mm) | wb | 13 |
Secondary iron core unit thickness (mm) | hs | 15 |
The effective magnetic path length (mm) | hw | 7.5 |
The model depth of the equivalent 2D FEM (mm) | De | 10 |
The number of turns of the unit machine armature winding in series | N | 150 |
PM residual flux density (T) | Br | 1.3 |
Rated current (A) | - | 7.5 |
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Dong, D.; Huang, W.; Bu, F.; Wang, Q.; Jiang, W.; Lin, X. Modeling and Static Analysis of Primary Consequent-Pole Tubular Transverse-Flux Flux-Reversal Linear Machine. Energies 2017, 10, 1479. https://doi.org/10.3390/en10101479
Dong D, Huang W, Bu F, Wang Q, Jiang W, Lin X. Modeling and Static Analysis of Primary Consequent-Pole Tubular Transverse-Flux Flux-Reversal Linear Machine. Energies. 2017; 10(10):1479. https://doi.org/10.3390/en10101479
Chicago/Turabian StyleDong, Dingfeng, Wenxin Huang, Feifei Bu, Qi Wang, Wen Jiang, and Xiaogang Lin. 2017. "Modeling and Static Analysis of Primary Consequent-Pole Tubular Transverse-Flux Flux-Reversal Linear Machine" Energies 10, no. 10: 1479. https://doi.org/10.3390/en10101479