Design and Performance Investigation of 3-Slot/2-Pole High Speed Permanent Magnet Machine

Khan, Hilal Musadiq; Khan, Faisal; Khan, Samiullah; Ahmad, Naseer; Soomro, Jahangeer Badar; Sami, Irfan

doi:10.1109/access.2021.3065265

Cited by 11 publications

(2 citation statements)

References 32 publications

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“…[7][8][9][10]. The small inertia moment of the motor allows a fast dynamic response, which is also an important feature [11][12][13]. In addition, HSPMMs are also popular in transportation applications, where compactness and lightness are required [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Analysis of Influencing Factors of AC Copper Loss for High-Speed Permanent Magnet Machine with Round Copper Wire Windings

Zhang

et al. 2022

Machines

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AC copper loss from stator winding is one of the main losses of the high-speed permanent magnet machines (HSPMMs) and directly affects the performance of the machines. AC copper losses are influenced by many factors, including the frequency, conductor diameter, temperature performance, etc. These factors cause the AC losses to increase significantly at high frequencies due to the skin effect and proximity effect. In this paper, a comprehensive analysis of the AC copper losses of HSPMMs with round copper wire windings is presented. Firstly, the structure and parameters of a 60 kW, 30,000 rpm high-speed permanent magnet machine are provided. Then, based on this parameter, a 2D-finite element model (2D-FEM) is established to obtain the AC copper loss. Through the eddy-current field analysis, the current density distribution of the stator winding and the variation trends of AC copper losses under different frequencies are observed. In addition, by comparing the winding current density distribution and the AC copper loss value under different conditions, the influencing factors of AC winding losses are comprehensively analyzed, including the frequency, conductor diameter, number of conductors per slot, notch height of the stator slot, and working temperature. Finally, four stator coil cases are manufactured, which have different conductor diameters and wire strands. The AC losses of the four cases at different frequencies are tested, and the theoretical results are verified by measuring the AC/DC loss ratios (kac) of different conductor cases at various frequencies.

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Section: Introductionmentioning

confidence: 99%

Comprehensive Analysis of Influencing Factors of AC Copper Loss for High-Speed Permanent Magnet Machine with Round Copper Wire Windings

Zhang

et al. 2022

Machines

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“…Titanium alloys have very high tensile strength and reliable thermal conductivity. Along with the thermal limitations that exist through high speeds, this material is considered a proper material [6,7].…”

Section: Introductionmentioning

confidence: 99%

Taguchi Method for Design and Optimization of a High-Speed Permanent Magnet Synchronous Generator Protected by Retention Sleeve

Parivar¹,

Darabi²

2022

EAS

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High-speed permanent magnet synchronous generators (HS-PMSGs) suffer from mechanical stresses due to high speeds. With the predicted mechanical stresses that may occur in the rotor of the HS-PMSGs, the design of these machines should be very accurate. So, for the HS-PMSGs, a proper electromagnetic coupled with mechanical design is a critical issue. This paper presents a novel method for the electromagnetic and mechanical design of an HS-PMSG by finding an appropriate dimension of the retention sleeve and permanent magnets (PMs) based on the well-known Taguchi optimization method. A 40-kW, 60-krpm, 2-poles and 18-slots HS-PMSG is designed at the first step, and next, it has been optimized by the proposed optimization method, and finally modeled and analyzed through Finite-Element Method (FEM). Results obtained from the electromagnetic and mechanical simulations of the HS-PMSG show that in the optimized design of the HS-PMSG some parameters changed and the HS-PMSG has a better performance compared to the initial design. For example, The effective air gap has been reduced which leads to the better electromagnetic and mechanical performance of HS-PMSG compared to the initial design. By the reduction in the thicknesses of the retention sleeve and the PM, it can be concluded that the total size and dimensions of the HS-PMSG have been reduced. The weight of the PM and the retention sleeve are reduced by about 16.31% and 29.28% responsively, and as a result, the total weight of the HS-PMSG is reduced by approximately 1.94%, The Joule loss is reduced by about 9.80%, the HS-PMSG efficiency has been improved by 0.02%, and finally, the cogging torque is reduced by 27.87%, comparing with the initially designed. The FEM results ensure the electromagnetic and mechanical performance of the machine around the predicted speed of 60-krpm.

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Mechanical and magnetic responses of sintered NdFeB under impact

Wang

Yang

et al. 2022

Journal of Alloys and Compounds

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Design and Performance Investigation of 3-Slot/2-Pole High Speed Permanent Magnet Machine

Cited by 11 publications

References 32 publications

Comprehensive Analysis of Influencing Factors of AC Copper Loss for High-Speed Permanent Magnet Machine with Round Copper Wire Windings

Comprehensive Analysis of Influencing Factors of AC Copper Loss for High-Speed Permanent Magnet Machine with Round Copper Wire Windings

Taguchi Method for Design and Optimization of a High-Speed Permanent Magnet Synchronous Generator Protected by Retention Sleeve

Mechanical and magnetic responses of sintered NdFeB under impact

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