Electromagnetic and Microwave-Absorbing Properties of Plate-Like Nd–Ce–Fe Powder

Qiao, Zhongliang; Pan, Shunkang; Xiong, Jin; Cheng, Lichun; Lin, Peihao; Luo, Jialiang

doi:10.1007/s11664-016-4958-7

Cited by 15 publications

(3 citation statements)

References 10 publications

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“…In order to provide those superiorities, permanent magnets (PMs), especially produced from rare‐earth elements, are key components 2,3 . These magnets can be produced in any geometry and magnetization range, having high magnetic flux density; 4‐6 thereby, PM generators with those magnets have been attracting great interest by the industry 7 …”

Section: Introductionmentioning

confidence: 99%

Optimization of a 3‐kWaxial flux permanent magnet generator with variable air gap

Kurt

Gör

Çelik

2021

Int Trans Electr Energ Syst

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Summary An air gap optimization study of a 3‐kW axial flux three‐phase permanent magnet generator has been performed. The machine has two rotors sandwiching a stator with 12 separated laminated cores under an innovative flux morphology circulating over the back‐iron components. The rotor component has 16 rare earth magnets with an innovative self‐cooling blade structure. According to the air gap parametric magnetostatic analyses under the finite element method (FEM) between the range of 0.8 and 7 mm, the spatial magnetic flux distribution and cogging torque values have been determined. Besides, following the magnetostatic analyses, time‐dependent FEM simulations over the generated voltage and power values have been studied in detail. Then, after the implementation of the designed machine, the experiments have been performed for various air gap values. The generated power is observed to be dependent on the air gap, the efficiency is measured as 85%, and power density is measured as 111.7 kW/m3, which is a promising value compared to the literature. A scaling effect study is performed as functions of air gap and rotor speed for the first time to our knowledge. The maximum cogging torque is measured as 3.12 Nm. The other superiority of the present prototype is its low total harmonic distortion value within 2%; thereby, it generates nearly an ideal sinusoidal waveform. Consequently, the novel machine is recommended for both off‐grid and on‐grid operations with its low harmonic distortion and high efficiency.

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Section: Introductionmentioning

confidence: 99%

Optimization of a 3‐kWaxial flux permanent magnet generator with variable air gap

Kurt

Gör

Çelik

2021

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

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“…That enforces the engineers to design better machines according to their operation aims: better dynamic performance, higher efficiency, lower power consumption, higher torque per volume, etc. [8][9][10][11][12][13] can be counted. The structure of a PM machine gives superiorities for the control of their speed and position.…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, these varieties are related with magnets and their arrangements at the rotor unit. The rare earth Neodymium (NdFeB) magnets, which have the largest flux densities among the PMs can provide the best magnetic force performance compared to those made by conventional magnets [9][10][11]. Depending on the magnet topology in the rotor, PM machines can be classified as radial flux and axial flux machines [12][13].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic design of a new radial flux permanent magnet motor

Bouloukza¹,

Mordjaoui²,

Kurt

et al. 2018

Journal of Energy Systems

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This paper proposes a new design study for a three-phase permanent magnet motor. The radial flux machine has 12 pole type magnets in its rotor internally and a surface mounted stator has 36 coils surrounding the cores. Initially, a magnetostatic study has been performed, and then a 2D transient finite element analysis has been realized in order to verify the new design concept. Then, a harmonic analysis is performed to see the harmonic impact on the design performance and achieving a good prototype. The new-designed machine is promising since it gives symmetrical field structure under operation and the electromagnetic torques and current waveforms characteristics are good for different angular spreading of magnet.

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