Design and modeling of a single-phase linear permanent magnet motor for household refrigerator applications

Abdalla, Izzeldin Idris; Ibrahim, Taib; Nor, Nursyarizal Mohd

doi:10.1109/beiac.2013.6560207

Cited by 15 publications

(5 citation statements)

References 25 publications

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“…Under PM magnetization, LOA can accommodate axially magnetised, radially magnetised PMs, and Halbach array configuration of the PMs. Axially magnetised PMs have greater feasibility than the rest of the magnetization due to lower cost, ease of manufacture, and higher thrust force [4].…”

Section: Introductionmentioning

confidence: 99%

“…In contrast to conventional linear actuators, currently introduced LOAs simply incorporate linear motion. The recent LOAs have simple structure, less number of parts, less frictional losses, and high dynamic performance that set it superior from the conventional one [3][4][5]. The LOA is composed of two main components: the stator and the mover.…”

Section: Introductionmentioning

confidence: 99%

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Electromagnetic and experimental analyses of a low‐cost miniature tubular moving magnet linear oscillating actuator for miniature compressor applications

Khalid

Khan

Ullah

et al. 2022

IET Electric Power Appl

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This article presents a miniature tubular moving magnet linear oscillating actuator (MT-MMLOA) that operates on an electro dynamic actuation mechanism. The proposed linear oscillating actuator comprises two main parts: the stator and the mover. In this topology, the stator assembly is composed of a modular C-core structure along with a separator to prevent flux cancelation, and the mover assembly accommodates axially magnetised permanent magnets (PMs) that contribute to high thrust force generation and present a less costly actuator compared to the conventional actuator design. The finite element analysis is performed and validated experimentally. Numerous linear oscillating actuator topologies proposed previously in the literature are compared with MT-MMLOA to analyse the electromagnetic performance. The results show that the motor constant, which is the performance parameter, is significantly increased from the conventional design. The PM volume is reduced, which is cost-effective. The overall volume of MT-MMLOA is also reduced due to reduction in the PM volume, which is advantageous for compactness. Consequently, the proposed MT-MMLOA is simple in structure, less costly, and easy to fabricate.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electromagnetic and experimental analyses of a low‐cost miniature tubular moving magnet linear oscillating actuator for miniature compressor applications

Khalid

Khan

Ullah

et al. 2022

IET Electric Power Appl

View full text Add to dashboard Cite

show abstract

“…Conventional refrigerator compressors are made up of rotary motors and desired linear piston oscillations are achieved with the help of a crank shaft mechanism. Due to friction, number of parts and impact of tangential and radial components of the thrust force, lower efficiency of the compressor is achieved [1–3]. Linear oscillating actuator (LOA) is an electromechanical system which provides mover's (piston's) reciprocating motion on the same axis without any intermediate mechanism such as gears, screws, or crank shaft [4].…”

Section: Introductionmentioning

confidence: 99%

Design of a high thrust density moving magnet linear actuator with magnetic flux bridge

Ahmad

Hassan

Khan

et al. 2020

IET Electric Power Applications

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This article presents a design of a high thrust density moving magnet linear actuator for linear refrigerator compressor. The shape of permanent magnet (PM) shows great effect on cost, fabrication and magnetic flux density generation in the actuator. Axially magnetised disk shaped PMs are low cost and convenient for fabrication. Moreover, axially magnetised PMs generate high flux density in a specific direction compared to radial magnets. This paper investigates the design of axially magnetised moving magnet linear oscillating actuator (LOA) which operates on single phase alternating supply. Additionally, an alternative path is proposed for the return of magnetic flux from mover to the stator. Using finite element method (FEM) tools, all the parameters of LOA are optimised. Moreover, with the help of a specially designed experimental setup, FEM simulation results are validated. This actuator demonstrates great advancement in thrust force density, motor constant and output power compared to the size of proposed LOA.

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“…Therefore, the mover mass is reduced significantly, and thus the dynamic response is increased greatly. Izzeldin [ 21 ] analyzed the magnet patterns of three moving-magnet linear machines, including rectangular, trapezoidal and T-shape magnet arrays with quasi-Halbach magnetization. It is shown that the T-shape and trapezoidal magnet arrays achieve better flux linkage than the rectangular one.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Flux Distribution of Linear Machines with Novel Three-Dimensional Hybrid Magnet Arrays

Yao

Yan

Wang

et al. 2017

Sensors

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The objective of this paper is to propose a novel tubular linear machine with hybrid permanent magnet arrays and multiple movers, which could be employed for either actuation or sensing technology. The hybrid magnet array produces flux distribution on both sides of windings, and thus helps to increase the signal strength in the windings. The multiple movers are important for airspace technology, because they can improve the system’s redundancy and reliability. The proposed design concept is presented, and the governing equations are obtained based on source free property and Maxwell equations. The magnetic field distribution in the linear machine is thus analytically formulated by using Bessel functions and harmonic expansion of magnetization vector. Numerical simulation is then conducted to validate the analytical solutions of the magnetic flux field. It is proved that the analytical model agrees with the numerical results well. Therefore, it can be utilized for the formulation of signal or force output subsequently, depending on its particular implementation.

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Design and modeling of a single-phase linear permanent magnet motor for household refrigerator applications

Cited by 15 publications

References 25 publications

Electromagnetic and experimental analyses of a low‐cost miniature tubular moving magnet linear oscillating actuator for miniature compressor applications

Electromagnetic and experimental analyses of a low‐cost miniature tubular moving magnet linear oscillating actuator for miniature compressor applications

Design of a high thrust density moving magnet linear actuator with magnetic flux bridge

Magnetic Flux Distribution of Linear Machines with Novel Three-Dimensional Hybrid Magnet Arrays

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