Comparison of Electromagnetic and Dynamic Characteristics of Linear Oscillating Actuators With Rare-Earth and Ferrite Magnets

Kim, Chang-Woo; Jang, Gang-Hyeon; Seo, Sunae; Yoon, Ick-Jae; Lee, Sang-Hwa; Jeong, Sanghwa; Choi, Jang-Young

doi:10.1109/tmag.2018.2890025

Cited by 16 publications

(11 citation statements)

References 10 publications

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“…Ref. [18] offered a ferrite PMLOA as a replacement for rare-earth PMLOAs. Conventional designs of ferrite PMLOA has high mover mass while design investigated in Ref.…”

Section: Introductionmentioning

confidence: 99%

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Design and experimental analysis of high electromagnetic force density moving magnet linear actuator with end ferromagnetic poles

Akbar

Khan

Ahmad

et al. 2022

IET Electric Power Appl

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A Linear Oscillating Actuator (LOA) generates bi-directional electromagnetic (EM) force between two extreme points. A new topology of moving magnet LOA with axial magnetised PMs and a C-shaped stator core is proposed. On each side of the mover, two chamfered tubular-shaped core material parts are attached. All the design parameters, such as mover mass and EM force of the LOA, are optimised using parametric analysis via parametric sweep, and the optimum values of the parameters are chosen based on design and performance parameters. The LOA's performance is examined for various input loading values and at different oscillation region positions. For various values of time-dependent supply, the EM force's oscillating nature is analysed. The effect of resonance analysis on input current, stroke to current ratio, and efficiency are discussed. The proposed LOA is compared to current LOA topologies in terms of design structure and performance parameters. The FEM results are validated using a special experimental setup. The proposed LOA produces feasible results for the compressor in a refrigeration system.

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“…Ref. [18] offered a ferrite PMLOA as a replacement for rare-earth PMLOAs. Conventional designs of ferrite PMLOA has high mover mass while design investigated in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…Conventional designs of ferrite PMLOA has high mover mass while design investigated in Ref. [18] houses PMs on the stator due to which its mover mass is low. This design is a worthy alternative to rare-earth PMLOA, but it uses radial magnetised PM on the mover.…”

Section: Introductionmentioning

confidence: 99%

Design and experimental analysis of high electromagnetic force density moving magnet linear actuator with end ferromagnetic poles

Akbar

Khan

Ahmad

et al. 2022

IET Electric Power Appl

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“…LOA provides controlled linear oscillatory motion (LOM) between two extreme positions. Displacement of the moving part of the LOA between two peak points is called stroke of the LOA [1]. Compared to conventional actuation method where LOM is generated by a special mechanism called crankshaft, LOA produces LOM without using any intermediate conversion mechanism.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of a Novel Outer Mover Moving Magnet Linear Oscillating Actuator for a Refrigeration System

et al. 2021

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This article presents linear oscillating actuator (LOA) which generates bidirectional linear thrust force. Design topology of the proposed LOA contains an outer mover and an inner stator design. Two axially magnetized and tubular-shaped permanent magnets (PMs) are mounted on the mover. Due to the higher magnetic flux density of axially magnetized PMs in a specific direction, it generates higher thrust force than radially magnetized PMs. The proposed LOA operates on single-phase alternating source. All the design specifications of the LOA are optimized through finite element method (FEM) and optimum values of the design parameters are obtained. Output parameters such as the stroke length and thrust force are analyzed for multiple magnitudes of the input parameters such as current using FEM. Additionally, Other parameters like back emf, coil current and winding resistance are analyzed at resonance. Effect of motor constant is investigated toward both directions of the force, which show identical replication. Output parameters of the LOA are compared with already designed topologies of the LOA for refrigeration system. Proposed LOA demonstrates promising improvements in terms of motor constant and thrust force compared to the volume of the LOA. Moreover, proposed LOA is comparatively convenient to fabricate as well.

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“…The interest in single-phase short-stroke tubular PM machines (SPSS-TPMMs) has been considerably increasing over the last few years, and they have been applied in healthcare [16], wave energy extraction [17], and household appliances [18]. This is because single-phase tubular machines are particularly suitable for short-stroke operation, require simpler control, and are less affected by flux fringing effects compared with their three-phase counterparts [19,20].…”

Section: Introductionmentioning

confidence: 99%

Novel Single-Phase Short-Stroke Tubular Permanent Magnet Oscillating Machines with Partitioned Stator

Zhu

Shuraiji

et al. 2021

Energies

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This paper presents three novel configurations of single-phase (SP) short-stroke (SS) tubular permanent magnet oscillating machines (TPMOMs) with partitioned stator (PS), termed PS-SPSS-TPMOMs. The machine structures are described and the influence of permanent magnet pole alignment with either stator slot or stator tooth is investigated. It is found that the PM poles should be aligned with the stator slots in order to ease the oscillation. The electromagnetic performance of these proposed machines is analyzed and compared. The results show that such machines have the advantages of low mover mass and low magnet eddy current loss, compared with a conventional surface-mounted SPSS-TPMOM.

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Comparison of Electromagnetic and Dynamic Characteristics of Linear Oscillating Actuators With Rare-Earth and Ferrite Magnets

Cited by 16 publications

References 10 publications

Design and experimental analysis of high electromagnetic force density moving magnet linear actuator with end ferromagnetic poles

Design and experimental analysis of high electromagnetic force density moving magnet linear actuator with end ferromagnetic poles

Analysis and Design of a Novel Outer Mover Moving Magnet Linear Oscillating Actuator for a Refrigeration System

Novel Single-Phase Short-Stroke Tubular Permanent Magnet Oscillating Machines with Partitioned Stator

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