Design and Characteristic Analysis of a High-Speed Permanent Magnet Synchronous Motor Considering the Mechanical Structure for High-Speed and High-Head Centrifugal Pumps

Jang, Gang-Hyeon; Ahn, Jinsook; Kim, Byung-Ok; Lee, Dong-Hyun; Bang, Jae-Sung; Choi, Jang-Young

doi:10.1109/tmag.2018.2845874

Cited by 36 publications

(15 citation statements)

References 15 publications

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“…The solution of the fluid-thermal coupling model is achieved in the commercial solver ANSYS Fluent, which is based on the finitevolume technique. According to (5), the Reynolds number of fluid in the air gap is 17,263 (>2300), so the standard k-ɛ turbulence model is used to solve the problem [21]. To solve the fluid governing equation and 3D heat conduction equation, the physical model has to be discretised into small elements.…”

Section: Meshing Of the Modelmentioning

confidence: 99%

“…Besides, with Gramme-ring windings, the difficulty in the motor cooling will be further enhanced, because of extra copper loss of windings in the outer slots of the stator core. Moreover, the mechanical strength of the surface-mounted HSPMM rotor is not only threatened by large centrifugal force but also massive impact imposed by alternator discharge for this application [4][5][6][7]. Herein a considerable thick carbon-fibre retaining sleeve is mounted outside of the rotor to ensure the mechanical strength.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermal analysis of a Gramme‐ring‐winding high‐speed permanent‐magnet motor for pulsed alternator using CFD

Wan

Guo

et al. 2020

IET Electric Power Applications

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Due to the merit of very‐short end turns, Gramme‐ring windings are widely used in high‐speed permanent‐magnet motors (HSPMMs). This study investigated the thermal issues of a 300 kW, 12,000 rpm Gramme‐ring‐winding HPSMM with housing water jacket and forced air cooling, based on the computational fluid dynamics (CFD) and numerical heat‐transfer calculations. The reasons that cause the overheat of the prototype in the experimental test are thoroughly analysed. The high wind resistance of air gap as the ventilation duct and the large interface gap between the stator lamination and housing water jacket is thought to be the main reasons. Then improvement of the ventilation structures is studied to decrease the wind resistance. Besides, the modification of water channels is also investigated to avoid the influence of a large interface gap on the water cooling performance. Finally, a new cooling structure, combining the slot ventilation ducts and inside water channels, is proposed for the HSPMM with Gramme‐ring windings. With the new cooling structure, the temperature rise of the motor is decreased, and the power density can be increased.

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Section: Meshing Of the Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal analysis of a Gramme‐ring‐winding high‐speed permanent‐magnet motor for pulsed alternator using CFD

Wan

Guo

et al. 2020

IET Electric Power Applications

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“…IFFERENT applications related to water pumps are progressively demanding reduction of size to provide compact designs while offering multiple operational capability [1]. Focusing on the motoring part, permanent magnet synchronous machines (PMSMs) have become the most suitable choice to accomplish these characteristics due their superior capabilities [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Customized PMSM Design and Optimization Methodology For Water Pumping Applications

Candelo-Zuluaga

Riba

Espinosa

et al. 2022

IEEE Trans. Energy Convers.

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The need to reduce water pumps size to achieve compact designs adapted to multiple working points opens new fields of study. PMSMs are the preferred choice due to outstanding torque-speed range capabilities. This paper presents a methodology to design and optimize PMSMs by defining the desired torque-speed-efficiency map, adapting its performance to the hydraulic characteristics of the water pump. Once the hydraulic efficiency is known, an initial PMSM reference torquespeed-efficiency map is defined according to the objective motor performance, including the distribution of power losses and the power rating of the selected application. The designer has full freedom to define the efficiency levels and distribution along the torque-speed map. The design optimization algorithm achieves the PMSM characteristics which adjust as much as possible to the defined performance. This methodology uses ultra-fast finite element analysis by applying magneto-static computations and a time-space conversion to compute the iron losses, reducing the computational requirements. The torque-speed-efficiency map is calculated by applying a direct-quadrature electrical model. The objective function uses a novel image comparison technique that allows comparing the similarity between the objective and optimized maps. The methodology is validated experimentally by designing and testing a PMSM adapted to a real WP application.

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“…However, as the high-speed machine rotates at such a great speed, there exists the issue of damage and loss of the rotor caused by centrifugal force [11,12]. To prevent damage to the rotor, the scattering of PMs is prevented through the sleeve, and with the use of materials having excellent mechanical rigidity for the shaft [13,14]. However, the choice of the shaft material has a significant influence on the electromagnetic and mechanical characteristics of high-speed machines [8].…”

Section: Introductionmentioning

confidence: 99%

Design of the High-Speed PMSG with Two Different Shaft Material Considering Overhang Effect and Mechanical Characteristics

Lee¹,

Bang²,

Lee³

et al. 2021

Applied Sciences

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In general, high-speed machines should be designed to satisfy electromagnetic and mechanical characteristics. In this study, the design of high-speed permanent magnet synchronous generator with two different shaft materials considering overhang effect and mechanical characteristics was performed. It was confirmed that the leakage magnetic flux generated by the two shaft materials electromagnetically affects the high-speed generator. Additionally, it is important to accurately predict the natural frequency mode and critical speed to prevent damage and vibration of the rotating body owing to scattering during high-speed rotation. Therefore, the mechanical characteristics of the designed model were analyzed. In this study, we propose a design method that considers both the electromagnetic effects and mechanical characteristics. Subsequently, verification was performed through experiments and comparisons for the validity and reliability of the proposed design method.

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Design and Characteristic Analysis of a High-Speed Permanent Magnet Synchronous Motor Considering the Mechanical Structure for High-Speed and High-Head Centrifugal Pumps

Cited by 36 publications

References 15 publications

Thermal analysis of a Gramme‐ring‐winding high‐speed permanent‐magnet motor for pulsed alternator using CFD

Thermal analysis of a Gramme‐ring‐winding high‐speed permanent‐magnet motor for pulsed alternator using CFD

Customized PMSM Design and Optimization Methodology For Water Pumping Applications

Design of the High-Speed PMSG with Two Different Shaft Material Considering Overhang Effect and Mechanical Characteristics

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