A Study on Optimal Design Process of Dual Rotor Axial-Flux Permanent Magnet Synchronous Motors

Yang, Seo-Hee; Pyo, Hyun-Jo; Jung, Dong-Hoon; Kim, Won-Ho

doi:10.3390/machines11040445

Cited by 3 publications

(4 citation statements)

References 29 publications

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“…Of the many permanent magnet synchronous machine rotor shapes used and described in the literature [23][24][25][26][27][28], eight were selected for analysis. The selected variants have both surface-mounted magnets and latent magnets.…”

Section: Rotor Designmentioning

confidence: 99%

Selecting the Best Permanent Magnet Synchronous Machine Design for Use in a Small Wind Turbine

Lefik,

Firych-Nowacka,

Lipian

et al. 2024

Electronics

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The article describes the selection of a permanent magnet synchronous machine design that could be implemented in a small wind turbine designed by the GUST student organization together with researchers working at the Technical University of Lodz. Based on measurements of the characteristics of available machines, eight initial designs of machines with different rotor designs were proposed. The size of the stator, the number of pairs of poles, and the dimensions of the magnets were used as initial parameters of the designed machines. The analysis was carried out about the K-index, the so-called index of benefits. The idea was to make the selected design as efficient as possible while keeping production costs and manufacturing time low. This paper describes how to select the best design of a permanent magnet synchronous generator intended to work with a small wind turbine. All generator parameters were selected keeping in mind the competition requirements, as the designed generator will be used in the author’s wind turbine. Based on the determined characteristics of the generator variants and the value of the K-index, a generator with a latent magnet rotor was selected as the best solution. The aforementioned K-index is a proprietary concept developed for the selection of the most suitable generator design. This paper did not use optimization methods; the analysis was only supported by the K-index.

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Section: Rotor Designmentioning

confidence: 99%

Selecting the Best Permanent Magnet Synchronous Machine Design for Use in a Small Wind Turbine

Lefik,

Firych-Nowacka,

Lipian

et al. 2024

Electronics

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“…When the load torque is drop, the current of stator down and the speed of the motor rises. Figure 5 indicates the effects of variation in load of the current of both rotor and stator (5) . The magnitude and frequency of the rotor currents rises as the burden is added to the DRIM at time setting of 2, approaching a steady state value.…”

Section: Analysis Of Magnetic Fieldsmentioning

confidence: 99%

“…On the other hand, use of variable-speed drives, such as twin-rotor induction motors, has the potential to improve system management which increases energy efficiency. The progression of power electronics and control systems has resulted in enhanced sophistication and adaptability of the available system (4,5) . DRIM has unique benefits that make it suitable for use in wind turbines and other renewable energy sources.…”

Section: Introductionmentioning

confidence: 99%

Robust Analysis of Dual Rotor Radial Flux Induction Motor Used for Industrial Application

Bobade,

Mohod,

Singh

2024

IJST

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Background: Dual Rotor Radial Flux Induction Motor (DRRFIM) is proposed in this study to improve the operating performance in a more concise way for several applications compared to the conventional Induction motor. Mathematical analyses are obtained from the modeling and analytical study of Double Rotor Induction Motors (DRIM) which are useful to determine the dynamical behavior of the motor in saturated and unsaturated conditions. Methods: In normal DRIM, the driving state flow equation is done by the state equations in q-d axis and Park's transformation. To develop and design such models, it is advised to use better optimization techniques adapted MATLAB2020/Simulink software for validation. Further, transient, and steady state performance of the DRRFIM is analyzed in the various scenarios with and without saturation in DRRFIM. Finding: The proposed research also compares conventional IM with optimization possibilities. In addition, a DRIM is being operated at different stages of load connectivity and the level of speed conditions is being further investigated in this work. The method proposed and implemented in this paper achieved the overall efficiency is 82% by optimizing the mention performance metrics like active and reactive power of machine, speed of motor and its torque performance. Novelty and Applications: Dynamical behavior of solving and optimizing the amplitude of unsaturated and saturated magnetic flux are of utmost importance. The study also presents a machine equipped with two rotors that uplift the performance of the induction motor. This machine has the potential to be utilized in industrially important applications as well as in vehicles that are driven by electricity. Keywords: Dual Rotor RadialFlux Induction Motor (DRRFIM), Saturation, Unsaturation, Mathematical Model, Inner and Outer Rotor

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“…Therefore, an increase in motor efficiency leads to huge electrical energy savings realized in Negawatts [8][9][10]. To improve the efficiency of the motor, it is therefore necessary to understand the magnetic characteristics of the motor close to the actual driving environment [10][11][12][13][14][15]. Universally, power electronics accomplish power conversions involving the bidirectional flow of energy between sources, storage, and distribution grids.…”

Section: Introductionmentioning

confidence: 99%

Effect of Laminated Core Body Size on Motor Magnetic Properties

Yun

2023

Magnetism

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The magnetic characteristics of electromagnetic steel sheets used for motors are evaluated under ideal sinusoidal excitation. However, in actual equipment driving, excitation by pulse-width modulation (PWM) waves is the mainstream method. Therefore, it is necessary to clarify how the magnetic properties used in motors are changed by sinusoidal excitation and inverter excitation. To clarify the magnetic properties of the laminated core by inverter excitation, samples with different core sizes were prepared and the effects on the magnetic properties were then investigated. The magnetic properties were measured by changing only the input voltage VDC while maintaining the carrier frequency and modulation factor constant. As the results, the iron loss values of the small, medium, and large samples with inverter excitation were 6.05, 9.58, and 11.62 W/kg, respectively. The iron losses of the small, medium, and large toroidal cores with inverter excitation increased by 124.9, 256.1, and 332.0%, respectively, compared with the iron loss of each toroidal core with sinusoidal excitation. The larger the body, the higher the required voltage and iron loss. It can be inferred that a larger amount of energy was required to excite a larger toroidal core. This was because the change in magnetic flux density per unit time of the large toroidal core was greater than that of other cores. This indicates that the large toroidal core generated larger eddy currents than other cores. Therefore, it is possible to say that large toroidal cores generate greater eddy current losses than other cores.

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A Study on Optimal Design Process of Dual Rotor Axial-Flux Permanent Magnet Synchronous Motors

Cited by 3 publications

References 29 publications

Selecting the Best Permanent Magnet Synchronous Machine Design for Use in a Small Wind Turbine

Selecting the Best Permanent Magnet Synchronous Machine Design for Use in a Small Wind Turbine

Robust Analysis of Dual Rotor Radial Flux Induction Motor Used for Industrial Application

Effect of Laminated Core Body Size on Motor Magnetic Properties

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