Simplified Design of Magnetic Gear by Considering the Maximum Transmission Torque Line

Misron, Norhisam; Saini, Luqman Mohd; Aris, Ishak; Vaithilingam, Chockalingam Aravind; Hanamoto, Tsuyoshi

doi:10.3390/app10238581

Cited by 9 publications

(6 citation statements)

References 28 publications

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“…The use of magnetic gearboxes is promising [22,23]. They make it possible to abandon the mechanical gearbox in favor of a magnetic gearbox and use a classic highspeed and more compact, cheap, affordable, and easytomaintain electric generator on the output shaft of the wind turbine [24,25].…”

Section: Electrical Complexes and Systemsmentioning

confidence: 99%

Mathematical modeling of a magnetic gear for an autonomous wind turbine

Kovalenko,

Tkachuk

et al. 2024

Nauk. visn. nat. hirn. univ.

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Purpose. Development of a two-dimensional field mathematical model of a magnetic gearbox operating as part of a low-power wind turbine for the purpose of evaluating its parameters and characteristics and optimizing geometric parameters from the point of view of electromagnetic torque pulsations. Methodology. To carry out the research, the methods of the general theory of electromechanical energy converters, numerical methods of mathematical modeling based on the finite element method, numerical solution of nonlinear differential equations, and methods of spectral analysis to estimate pulsations of the electromagnetic torque were used in the work. Findings. The paper developed a two-dimensional numerical field mathematical model of a magnetic gearbox for an autonomous wind turbine. The model was developed to evaluate the parameters and characteristics of the magnetic gear, as well as to evaluate the influence of the design parameters on the magnitude of the electromagnetic torque and the magnitude of the pulsations of the electromagnetic torque. The effect of the configuration of permanent magnets, the parameters of the ferromagnetic inserts of the magnetic flux modulator and the size of the air gap was investigated in the paper. The obtained results show that there is an optimal configuration of permanent magnets and ferromagnetic elements of the magnetic flux modulator in which the maximum electromagnetic torque and minimum pulsations are achieved. Changing the parameters of the magnetic system affects the dynamics of the magnetic gear, its reliability and efficiency, therefore configuration optimization is an important task in the design, development and implementation of such systems. Originality. A two-dimensional field mathematical model of the magnetic gear has been developed, which makes it possible to estimate the change in its parameters and characteristics when the geometric dimensions change. This allows investigating the influence of various parameters of the magnetic system, such as the height of the permanent magnets and the width of the ferromagnetic inserts, on the electromagnetic torque. This makes it possible to obtain the optimal configuration of the system to achieve the optimal value of the torque and minimal pulsations and to determine the regularity of the change of the electromagnetic torque and other parameters of the gearbox under different operating modes in the future. Practical value. The simulation results indicate the prospects of industrial implementation of magnetic gaers as part of a wind power plant, and the obtained research results indicate the possibility of optimizing the design of magnetic gears in order to increase their reliability and efficiency.

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Section: Electrical Complexes and Systemsmentioning

confidence: 99%

Mathematical modeling of a magnetic gear for an autonomous wind turbine

Kovalenko,

Tkachuk

et al. 2024

Nauk. visn. nat. hirn. univ.

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“…Structure of surface-mount CMG [10] Since the demand for high efficiency and compact gears has increased, hence also the need to accommodate devices that incorporate miniscule and energy efficiency in their design. The presence of highenergy-density PM in CMG contributes to a large increase in eddy current loss in magnetic gears, particularly during high-speed operations, and lowering gear efficiency [13]- [16]. A reduction in gear efficiency weakens torque capability, hence rendering for lower torque density.…”

Section: Introductionmentioning

confidence: 99%

Hybrid-excited magnetic gear topology for improved gear efficiency at increasing rotor speed

Halim,

Rahman,

Yahaya

et al. 2024

IJPEDS

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Concentric magnetic gear (CMG) and rotating pole piece magnetic gear (RPMG) are two topologies that produce high torque density in magnetic gear (MG) for electrical machine. However, due to the eddy current loss, both suffer high losses when operated in high speed condition. Thus, to overcome this matter, a second flux source is proposed to the RPMG stator. This approach will then transform it into hybrid excited magnetic gear (HMG) topology to achieve higher gear efficiency. Three tooth slot designs were considered, and the outcome of these designs are summarized and ranked. The proposed structures are assessed using JMAG designer 2D finite element software in high speed condition. It is found that partially closed slot structure achieved the highest gear efficiency of 95.34% and average outer rotor torque of 115.64 N.m.

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“…It has been gradually used for complex data fitting with the continuous development of data-driven methods [16]- [21]. Both supervised and unsupervised learning approaches have been applied to magnetic field approximation [14], [22]- [25].…”

Section: Introductionmentioning

confidence: 99%

“…So far, a series of AI and DL concepts have been proposed, including deep neural networks with fully connected networks (FCN), convolutional networks (CNN), and generative adversarial networks (GAN) [14], [26], [27].…”

Section: Introductionmentioning

confidence: 99%