Development and optimization of a moving-magnet tubular linear permanent magnet motor for use in a reciprocating compressor of household refrigerators

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

doi:10.1016/j.ijepes.2015.11.020

Cited by 26 publications

(12 citation statements)

References 21 publications

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“…To improve the air magnetic flux and efficiency, the C-type cylindrical bistable PMA with quasi-Halbach magnetised tubular PM mover is proposed in [17]. To improve the efficiency, total weight, and losses, the above PMA with a trapezoidal permanent magnet is studied in [18]. Moreover, the E-type cylindrical bistable PMA with quasi-Halbach magnetised tubular PM mover is presented and optimised to adjust the long stroke [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…However, these topologies also have some disadvantages, such as large retention in the closing state, extremely large closing current, and high battery capacity or capacitance. The symmetrical structure bistable PMA (SSBPMA) overcomes some disadvantages of the monostable PMA, such as the large retention in the closing state, large closing current, and high battery capacity or capacitance [12][13][14][15][16][17][18][19][20][21]. However, the holding force in the open stage is over the need of HVCB, which increases the wastage and closing time.…”

Section: Introductionmentioning

confidence: 99%

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Unsymmetrical bistable multimagnetic circuit permanent magnet actuator for high‐voltage circuit breaker application: analysis, design, and dynamic simulation

Zeng

Yang

Yin

et al. 2020

IET Electric Power Applications

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In this study, an unsymmetrical bistable multi-magnetic circuit permanent magnetic actuator is proposed. The operating principle and mathematical model of the high-voltage circuit breaker with the proposed machine are analysed. Additionally, the static and dynamic characteristics of the high-voltage circuit breaker with the presented machine are investigated and evaluated using numerical finite element analysis methods. Furthermore, the influence of the length of the middle gap and the additional coil in the proposed machine are studied. The advantages of the presented machine, such as less magnet volume, low cost, high force density, and short starting time, are discussed. Finally, a prototype is created and tested, followed by the retrieval of the characteristic curves of the holding force to confirm the proposed design.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unsymmetrical bistable multimagnetic circuit permanent magnet actuator for high‐voltage circuit breaker application: analysis, design, and dynamic simulation

Zeng

Yang

Yin

et al. 2020

IET Electric Power Applications

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“…A new rodless oil well pump has been proposed with the development of the submersible linear motor [1]. The submersible linear motor drives the pump plunger directly to move linearly [2].…”

Section: Introductionmentioning

confidence: 99%

A Fault Diagnosis Method for Oil Well Pump Using Radial Basis Function Neural Network Combined with Modified Genetic Algorithm

Sun

et al. 2017

Journal of Control Science and Engineering

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This paper presents a new method to diagnose oil well pump faults using a modified radial basis function neural network. With the development of submersible linear motor technology, rodless pumping units have been widely used in oil exploration. However, the ground indicator diagram method cannot be used to diagnose the working conditions of rodless pumping units because it is based on the load change of the polished rod suspension point and its displacement. To solve this problem, this paper presents a new method that is applicable to rodless oil pumps. The advantage of this new method is its use of a simple feature extraction method and advanced genetic algorithm to optimize the threshold and weight of the RBF neural network. In this paper, we extract the characteristic value from the operation parameters of the submersible linear motor and oil wellhead as the input vector of the fault diagnosis model. Through experimental analysis, the proposed method is proven to have good convergence performance, high accuracy, and high reliability.

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“…Nowadays, there are a lot of literature studies on the characteristics of a Halbach array. It has been widely used in many applications, such as reciprocating compressor and electrical machines . However, the ideal Halbach array is difficult to manufacture and increases cost, and it is replaced by segmented magnet Halbach magnetized in actual production.…”

Section: Introductionmentioning

confidence: 99%

Spatial harmonic analysis on a permanent magnet linear generator with Halbach array for direct‐driver wave energy conversion

Liu

Zhang

Xiong

et al. 2017

Int J Numerical Modelling

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A tubular permanent magnet linear generator (TPMLG) with Halbach array magnetization is proposed to extract wave energy. The magnetic field is analyzed by analytical analysis and verified by numerical analysis. The air‐gap flux density of TPMLG with Halbach array magnetization has a better sinusoidal shape than quasi‐Halbach and other magnetization based on the spatial harmonic analysis. The harmonic component of flux density varies with the degree of permanent magnet magnetization, through optimizing the angle α (α is the angle between the z‐axis and orientation of magnetization), and the harmonic component is smallest when the angle α equal to π/4. Meanwhile, the amplitude of Br in air‐gap region reaches maximum. Analytical analysis proves that TPMLG with Halbach array magnetization can improve generator performance and power density. Finally, a prototype is manufactured and applied to a direct‐drive power take‐off system experiment. Simulations and experimental results demonstrate that it is an effective method for direct‐drive wave power take‐off system.

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Development and optimization of a moving-magnet tubular linear permanent magnet motor for use in a reciprocating compressor of household refrigerators

Cited by 26 publications

References 21 publications

Unsymmetrical bistable multimagnetic circuit permanent magnet actuator for high‐voltage circuit breaker application: analysis, design, and dynamic simulation

Unsymmetrical bistable multimagnetic circuit permanent magnet actuator for high‐voltage circuit breaker application: analysis, design, and dynamic simulation

A Fault Diagnosis Method for Oil Well Pump Using Radial Basis Function Neural Network Combined with Modified Genetic Algorithm

Spatial harmonic analysis on a permanent magnet linear generator with Halbach array for direct‐driver wave energy conversion

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