Influence of Auxiliary Teeth on Performance of a Permanent Magnet Linear Motor

Boduroglu, A.; Demir, Y.; Lyra, R.O.C.; Aydın, Metin

doi:10.1109/icelmach.2018.8507040

Cited by 7 publications

(6 citation statements)

References 12 publications

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“…The other is suppressing the detent force fluctuation by optimizing the size of the auxiliary pole. At this time, the auxiliary pole and the primary mover are integrated [13].…”

Section: B the Methods Of Productionmentioning

confidence: 99%

“…Therefore, one end face is selected from each of the three stepped surfaces for combination. Consider minimizing the longitudinal length of the auxiliary pole as much as possible, the end faces 4, 5 and 12 are set as the first group, corresponding to f1(x) and f1'(x) in formula (13); the end faces 3, 6 and 9 are set as the second group, corresponding to f2(x) and f2'(x) in formula (13); the end faces 2, 7 and 10 are set as the third group, corresponding to f3(x) and f3'(x) in formula (13); the end faces 1, 8 and 11 are set as the fourth group, corresponding to f4(x) and f4'(x) in formula (13).…”

Section: ) the Optimal Size Of Sdapmentioning

confidence: 99%

“…In order to show that the SDAP-PMLSM has minimal detent force fluctuations, the optimal size of TAP-PMLSM needs to be determined first. According to the method and conclusion of literature [13], the optimal auxiliary pole size of TAP-PMLSM in this paper is shown in Table Ⅳ. The specific design parameters are shown in Figure 10.…”

Section: ) Simulation Analysis Of Single End Thrust Fluctuationmentioning

confidence: 99%

“…A. Boduroglu, SJ Kim, KH Shin, etc. proposed that changing the size and shape of the primary end teeth or auxiliary pole can effectively suppress the detent force fluctuation caused by end effect [13][14][15][16][17]. But the optimal size and shape need to be designed.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Research on the Method of Suppressing the End Detent Force of Permanent Magnet Linear Synchronous Motor Based on Stepped Double Auxiliary Pole

Zhang

Huang

et al. 2020

IEEE Access

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Permanent magnet linear synchronous motors have the advantages of high thrust density, high acceleration, high speed, and high efficiency, which are widely used in CNC lathes, lithography machines, rail transportation, etc. In high-speed, high-precision servo control systems, detent force fluctuation caused by end effect can easily cause problems such as speed fluctuation, mechanical vibration and electromagnetic noise, which affect the servo performance of permanent magnet linear synchronous motors. Aiming at the detent force fluctuation caused by the end effect of permanent magnet linear synchronous motor, this paper proposes a stepped double auxiliary pole method. The method has a good suppression effect on the end normal force fluctuation and the end thrust fluctuation, which improves the servo performance of the permanent magnet linear synchronous motor in the high-precision servo system. In the traditional methods of suppressing the fluctuation of end detent force, two common methods are using a magnetic isolation aluminum plate and optimizing the auxiliary pole size. The former needs a magnetic isolation aluminum plate to connect the auxiliary pole and the primary mover. Therefore, it needs to add the connection device to connect those three parts. The connection device complicates the auxiliary pole part and increases manufacturing difficulty. The latter does not change the manufacturing process, but in the early design process, the optimum size of the auxiliary needs to be considered. Compared with these two methods, the one proposed in this paper avoids the complex structure of magnetic isolation aluminum plate, the stepped double auxiliary pole is integrated with the primary mover. Moreover, it has a fixed structure with optimum size. Therefore, the method in the paper does not change the manufacturing process, improves the strength of the initial pole structure, and reduces design period. Finally, the finite element analysis by ANSYS was performed to illustrate the correctness and effectiveness of the method.

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“…The other is suppressing the detent force fluctuation by optimizing the size of the auxiliary pole. At this time, the auxiliary pole and the primary mover are integrated [13].…”

Section: B the Methods Of Productionmentioning

confidence: 99%

Section: ) the Optimal Size Of Sdapmentioning

confidence: 99%

Section: ) Simulation Analysis Of Single End Thrust Fluctuationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Research on the Method of Suppressing the End Detent Force of Permanent Magnet Linear Synchronous Motor Based on Stepped Double Auxiliary Pole

Zhang

Huang

et al. 2020

IEEE Access

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show abstract

“…The previous research related to the detent force reduction in the LPMM has focused on the addition of an auxiliary tooth and PM skew [ 4 , 5 , 6 ]. Seo et al [ 7 ] and Kim et al [ 8 ] proposed adding an auxiliary tooth to reduce the detent of the LPMM and adjusted its thickness and position.…”

Section: Introductionmentioning

confidence: 99%

Fast Design Optimization and Comparative Analysis for Linear Permanent Magnet Motor with Magnet Skew, Auxiliary Tooth and Overhang Structure

Kim

Woo

2022

Sensors

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This paper presents a fast design optimization using an effective characteristic analysis for linear permanent magnet motors (LPMMs) with techniques for improving motor performance such as using an auxiliary tooth, permanent magnet (PM) skew, and overhang structures. These techniques have different effects on the characteristics of the LPMM depending on the combinations of each other, resulting in complexity in the design optimization process. In particular, the three-dimensional (3-D) effect of the PM skew and overhang structure takes a lot of time to be analyzed. To deal with this problem, an effective magnetic field analysis method and a novel optimization algorithm are proposed. Preferentially, the field reconstruction method is used for a fast and accurate evaluation of the magnetic field of the LPMM. In the proposed magnetic field analysis method, the change of magnetic field distribution due to the addition of an auxiliary tooth is predicted, and the 3-D magnetic field effect of PM skew and overhang structure is considered. By reducing the computational burden in the magnetic field analysis, the electromagnetic characteristics of LPMMs can be calculated quickly, such as detent force, end force, thrust force, and back-EMF. The effect of the auxiliary tooth and overhang structure on the optimal PM skew length is investigated with comparative study results. Subsequently, the proposed optimization algorithm has the advantage of reducing time cost by providing multimodal optimization and robustness evaluation of local peaks at the same time. The proposed method is verified via comparison with finite element analysis and experimental results.

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Optimization Design of Thrust Characteristics of Switched Flux Linear Motor

Feng,

Yang,

et al. 2023

IEEJ Transactions Elec Engng

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The structure of permanent magnet flux‐switching linear motor (PMFSLM) with permanent magnet and coil as short primary mover and slotted core as long secondary stator can solve the problem of high cost in the long‐stroke transportation field, but PMFSLM has the phenomenon of top magnetic flux leakage. The permanent magnet on the mover side of U‐shaped permanent magnet flux‐switching linear motor (UPM‐FSLM) is arranged in a U shape, which improves the utilization rate of the permanent magnet of the motor. In order to reduce the edge effect and suppress the thrust ripple, based on the size parameters of PMFSLM prototype, a UPM‐FSLM with arc‐shaped assistant permanent magnet teeth structure is proposed, its specific structure and operation mechanism are introduced; In order to obtain the optimal thrust characteristics, the Taguchi method is used to screen the arc‐shaped assistant permanent magnets teeth sensitive parameters, and then the NSGA II algorithm based on the response surface method is used for comprehensive multi‐objective optimization. The results show that compared with PMFSLM, the average thrust of the optimized motor is increased by 16.09%, and the thrust ripple is reduced by 91.78%. © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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Influence of Auxiliary Teeth on Performance of a Permanent Magnet Linear Motor

Cited by 7 publications

References 12 publications

Research on the Method of Suppressing the End Detent Force of Permanent Magnet Linear Synchronous Motor Based on Stepped Double Auxiliary Pole

Research on the Method of Suppressing the End Detent Force of Permanent Magnet Linear Synchronous Motor Based on Stepped Double Auxiliary Pole

Fast Design Optimization and Comparative Analysis for Linear Permanent Magnet Motor with Magnet Skew, Auxiliary Tooth and Overhang Structure

Optimization Design of Thrust Characteristics of Switched Flux Linear Motor

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