Choice of Pole Spacer Materials for a High-Speed PMSM Based on the Temperature Rise and Thermal Stress

Wan, Yi; Wu, Shaopeng; Cui, Shumei

doi:10.1109/tasc.2016.2594847

Cited by 22 publications

(4 citation statements)

References 19 publications

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“…In Ref. [16], the influence of position and thickness of copper shield on rotor loss was analyzed by FEM for rotors containing a copper shield. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Analytical Calculation for Multilayer Rotor Eddy Current Losses of High‐Speed Permanent Magnet Machines

Wang

et al. 2022

IEEJ Transactions Elec Engng

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This paper deduces an exact model of analytical calculation for the multilayer rotor eddy current losses of high-speed permanent magnet machines based on the subdomain method. The analytical calculation model solution domain is divided into six parts of subdomains, including permanent magnet, shielding layer, metal retaining sleeve, air gap, slot openings, and windings. The Laplace equation of the air subdomain and the diffusion equation of the eddy current subdomain and the windings subdomain are established with the vector magnetic potential as the independent variable. The eddy current losses of the permanent magnet, shielding layer, and retaining sleeve of the multilayer rotor are calculated considering the slots effect and eddy current reaction. This analytical model is used to study the interfering factors of the multilayer rotor eddy current losses including the shielding layer thickness, carrier ratio, and modulation ratio. Finally, the correctness and regularity of the analytical calculation model are proved by finite element analysis and machine experiment analysis.

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“…In Ref. [16], the influence of position and thickness of copper shield on rotor loss was analyzed by FEM for rotors containing a copper shield. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Analytical Calculation for Multilayer Rotor Eddy Current Losses of High‐Speed Permanent Magnet Machines

Wang

et al. 2022

IEEJ Transactions Elec Engng

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“…The thermal stress of the rotor changes as the temperature of the rotor varies. For the rotor structure design of high-speed motors [10] and the optimal design of motors with specific rotor structures [11], thermal stress analysis has proven to be an efficient research method. In terms of the research on the thermal rotor stress caused by a fault [12] focuses on the thermal stress of a hydro generator after a rotor excitation winding fault.…”

Section: Introductionmentioning

confidence: 99%

Thermal Field and Stress Analysis of Induction Motor with Stator Inter-Turn Fault

Chen

Xie

2022

Machines

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Inter-turn fault (ITF), a typical motor fault, results in significant variations in the thermal characteristics of a motor. For fault, temperature rise (TR) experiments and thermal field-stress field simulations of an induction motor are carried out to reveal the fault characteristics related to ITF. First, based on the actual structure and the cooling type of the motor, a whole-domain simulation model of the fault thermal field was established. The reasonable equivalence of the motor and the calculation of the heat transfer boundaries were conducted during the modeling process. Then, the three-dimensional transient thermal field under a rated load before and after the fault was obtained, and the accuracy of the simulation could be validated through the comparison of the measured TR at several temperature-measuring points. The heat-transfer law and the notable thermal characteristics of the fault can be presented by analyzing the simulated and measured temperature data. In addition, a fault feature is proposed to provide a reference for diagnosis using the temperature difference of winding at different positions at different moments. Finally, the rotor thermal stress distribution of the normal and faulty motor is obtained by thermal-stress-coupled calculation, which can be used to evaluate the possibility of rotor fault caused by ITF.

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“…PMSM has some motor loses like cooper loss, mechanical loss and iron loss. These loses are must be minimized for high efficiency and there are many studies which are focused on optimized motor design [2], [3]. However, efficiency is not only related to optimal design.…”

Section: Introductionmentioning

confidence: 99%

Optimized Field Oriented Control Design by Multi Objective Optimization

Erkol¹

2019

ijacsa

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Permanent Magnet Synchronous Motors are popular electrical machines in industry because they have high efficiency, low ratio of weight/power and smooth torque with no or less ripple. In addition to this, control of synchronous motor is a complex process. Vector control techniques are widely used for control of synchronous motors because they simplify the control of AC machines. In this study, Field Oriented Control technique is used as a speed controller of a Permanent Magnet Synchronous Motor. The controller must be good tuned for applications which need high performance, and classical methods are not enough or need more time to achieve the requested performance criteria. Optimization algorithms are good options for tuning process of controllers. They guarantee finding one of the best solutions and need less time for solving the problem. Therefore, in this study, Tree-Seed Algorithm is used for tuning process of the controller parameters and the results show that Tree-Seed Algorithm is good tool for controller tuning process. The controller is also tuned by Particle Swarm Algorithm to make a comparison. The results show that optimized system by Tree-Seed Algorithm has good performance for the applications which need changing speed and load torque. It has also better performance than the system which is optimized by Particle Swarm Optimization algorithm.

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Choice of Pole Spacer Materials for a High-Speed PMSM Based on the Temperature Rise and Thermal Stress

Cited by 22 publications

References 19 publications

Analytical Calculation for Multilayer Rotor Eddy Current Losses of High‐Speed Permanent Magnet Machines

Analytical Calculation for Multilayer Rotor Eddy Current Losses of High‐Speed Permanent Magnet Machines

Thermal Field and Stress Analysis of Induction Motor with Stator Inter-Turn Fault

Optimized Field Oriented Control Design by Multi Objective Optimization

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