A Novel Track Structure of Double-Sided Linear PM Synchronous Motor for Low Cost and High Force Density Applications

Boduroglu, A.; Demir, Y.; Cumhur, B.; Aydın, Metin

doi:10.1109/tmag.2020.3017448

Cited by 34 publications

(16 citation statements)

References 9 publications

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“…With the increase of dynamic eccentricity, the amplitude of cogging torque gradually increases. 6(a) is the 10p/12s harmonic components under no-load, and the main harmonic orders are (0,0), (10,2), (±12,0), (20,4), (±24,0), and (±36,0). Among them, the 0-order force wave will not cause the motor to vibrate, so it can be ignored.…”

Section: Air Gap Magnetic Fieldmentioning

confidence: 99%

“…Among them, the 0-order force wave will not cause the motor to vibrate, so it can be ignored. The harmonic orders (10,2), (20,4) are generated by the interaction between the same harmonic component of the rotor magnetic field and the air gap permeance, and the frequency of this orders is 2nf 1 . The harmonic order (±12,0) is the order related to the harmonic order of the rotor magnetic field and the number of stator slots.…”

Section: Air Gap Magnetic Fieldmentioning

confidence: 99%

“…However, the order of the harmonics (±24,0) and (±36,0) is higher, so the vibration caused is smaller. Figure 6(b) is the 10p/15s harmonic components under no-load, the main harmonic components are (0,0), (−5,2), (10,2), (±15,0), (20,4), (±30,0), (±45,0). because it is an odd number slot, each harmonic content is particularly rich.…”

Section: Air Gap Magnetic Fieldmentioning

confidence: 99%

“…The traditional integrated electric-actuated valve consists of an induction motor, a reducer, and a coupling, which is difficult to meet the performance requirements under the high temperature condition. Permanent magnet synchronous motors (PMSM) have high torque density, small size, and precise servo control [3,4], which brings new opportunities to the valve field. However, the CEAV-PMSM directly drives the valve load under high temperature and high pressure, which is prone to eccentricity operation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Research on Electromagnetic and Structural Characteristics of Canned Electric‐Actuated Valve Permanent Magnet Synchronous Motor under Eccentricity

Li³

et al. 2022

IEEJ Transactions Elec Engng

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The high-temperature canned electric-actuated valve permanent magnet synchronous motor (CEAV-PMSM) directly drives the valve load, which is prone to eccentricity operation, causing greater system vibration and shortening the valve operating life. In order to analyze the electromagnetic and structural characteristics of CEAV-PMSM under different eccentricity faults, this paper uses analytical methods to derive the magnetic field distribution of the motor under normal and eccentricity conditions. Then, the Maxwell Stress Tensor method is used to derive the expression of the radial electromagnetic force under normal and eccentricity conditions, and the order of space-time harmonics that have a greater impact on CEAV-PMSM are summarized. After that, the electromagnetic performance comparison of the three pole-slot combinations under different eccentricity conditions, and the harmonic orders during eccentricity is analyzed by Fourier transform to obtain the optimal pole-slot combination, which verified the correctness of the analytical calculations. In addition, the influence of different eccentricity conditions on the radial force density and unbalanced magnetic pull are studied. On this basis, the vibration response of the motor under eccentricity is analyzed, and the influence of the canned sleeve on the vibration performance of the motor is discussed. Finally, the modal analysis of CEAV-PMSM is carried out to prevent the occurrence of resonance under eccentricity, which provides some references for reducing the vibration and noise of the canned electric-actuated valve.

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Section: Air Gap Magnetic Fieldmentioning

confidence: 99%

Section: Air Gap Magnetic Fieldmentioning

confidence: 99%

Section: Air Gap Magnetic Fieldmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Research on Electromagnetic and Structural Characteristics of Canned Electric‐Actuated Valve Permanent Magnet Synchronous Motor under Eccentricity

Li³

et al. 2022

IEEJ Transactions Elec Engng

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“…A multi-layer structured PMLSM is proposed in [6]- [7], which improves the motor thrust density while reducing thrust ripples by optimizing the motor winding and permanent magnet structure. References [8]- [9] proposed two double-sided PMLSM with ring windings structure and studied its characteristics through theoretical analysis and numerical calculation, and concluded that the ring windings is more suitable for PMLSM in EML. The thrust characteristics of double-sided PMLSM with quasi-sinusoidal ring winding are analyzed in [10].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Design of Toroidal Permanent Magnet Linear Synchronous Motor

et al. 2021

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For the permanent magnet linear synchronous motors (PMLSM) with high-speed and largethrust under the periodic transient conditions, the corresponding length and cost requirements are large. This paper designs a toroidal long primary PMLSM. In order to analyze the characteristics of the motor, the expressions of the electromagnetic force and the air-gap magnetic flux density are derived, then the finite element comparison analysis is performed for the linear structure and the toroidal structure of the PMLSM. The results indicate that the space occupied by the toroidal structure is reduced greatly under the same performance index, the required power level has obvious advantages, and the acceleration and braking time are not limited by the stroke. The structure of toroidal PMLSM is further optimized so as to suppress the thrust fluctuation, the comparison of air-gap flux density and electromagnetic force finite element simulation results verifies the validity of the structural optimization.

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Analysis of a Novel Consequent‐Pole Dual‐Stator Linear Permanent Magnet Vernier Machine Employing Mover Slot PM

Wang,

Li,

et al. 2024

IEEJ Transactions Elec Engng

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This paper proposes a novel consequent‐pole dual‐stator linear permanent magnet vernier machine (DS‐LPMVM) with PM in the mover slot opening, which has a bi‐directional flux modulation effect. The novelty of the proposed machine consists of consequent‐pole double‐sided topology with toroidal windings placed in the mover slot, as well as PMs both on the stator and mover slot to improve the air gap magnetic field. The dual‐stator adopts misalignment structure to suppress detent force and produce steady thrust. The electromagnetic parameters of the proposed DS‐LPMVM are evaluated and quantitatively compared with the conventional linear permanent magnet vernier machine (C‐LPMVM) in terms of air‐gap flux density, no‐load back EMF, inductance, and thrust. The geometrical parameters are designed to reduce the detent force. By analyzing the optimized structure parameters of the two machines, the good electromagnetic performances of the proposed machine are verified by the finite element method (FEM) and semi‐analytical method, and both results of the two methods are basically the same. It is found that the amount of PMs for the proposed machine is reduced by 20% compared to the C‐LPMVM, but the average thrust is increased by 20.7% and the thrust ripple is reduced to 4.04%. The results show that the proposed DS‐LPMVM has better flux modulation effect and thrust characteristics than C‐LPMCM. Finally, a 12‐slot, 10‐pole pairs prototype was manufactured and tested. © 2024 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.

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A Novel Track Structure of Double-Sided Linear PM Synchronous Motor for Low Cost and High Force Density Applications

Cited by 34 publications

References 9 publications

Research on Electromagnetic and Structural Characteristics of Canned Electric‐Actuated Valve Permanent Magnet Synchronous Motor under Eccentricity

Research on Electromagnetic and Structural Characteristics of Canned Electric‐Actuated Valve Permanent Magnet Synchronous Motor under Eccentricity

Electromagnetic Design of Toroidal Permanent Magnet Linear Synchronous Motor

Analysis of a Novel Consequent‐Pole Dual‐Stator Linear Permanent Magnet Vernier Machine Employing Mover Slot PM

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