Equivalent Magnetic Circuit Reluctance Optimization for Rotor Loss Reduction in Permanent Magnet Synchronous Motor for UPS-FESS

Wang, Gengji; Wang, Ping; Wang, Xiaoyuan

doi:10.1109/access.2020.2990653

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…Numerous innovative designs have been proposed for PMSMs for FESSs. These include a novel rotor with breathable gear sleeves to secure PMs in the rotor hub, equivalent magnetoresistive optimization to reduce rotor losses, and a bidirectional permanent-magnet synchronous motor/generator (PMSM/G) to reduce system losses during idle periods [43][44][45][46]. In addition, the application of bearingless PMSMs in FESSs has been studied.…”

Section: Permanent-magnet Motors For Flywheel Energy Storage Systemsmentioning

confidence: 99%

A Review of Flywheel Energy Storage System Technologies

Xu,

Guo,

Lei

et al. 2023

Energies

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The operation of the electricity network has grown more complex due to the increased adoption of renewable energy resources, such as wind and solar power. Using energy storage technology can improve the stability and quality of the power grid. One such technology is flywheel energy storage systems (FESSs). Compared with other energy storage systems, FESSs offer numerous advantages, including a long lifespan, exceptional efficiency, high power density, and minimal environmental impact. This article comprehensively reviews the key components of FESSs, including flywheel rotors, motor types, bearing support technologies, and power electronic converter technologies. It also presents the diverse applications of FESSs in different scenarios. The progress of state-of-the-art research is discussed, emphasizing the use of artificial intelligence methods such as machine learning, digital twins, and data-driven techniques for system simulation, fault prediction, and life-assessment research. The article also addresses the challenges related to current research and the application of FESSs. It concludes by summarizing future directions and trends in FESS research, offering valuable information for further advancement and improvement in this field.

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Section: Permanent-magnet Motors For Flywheel Energy Storage Systemsmentioning

confidence: 99%

A Review of Flywheel Energy Storage System Technologies

Xu,

Guo,

Lei

et al. 2023

Energies

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“…Interior permanent magnet synchronous motors (IPMSMs) have been widely applied in flywheel energy storage, electric vehicles, aerospace and other applications due to their significant advantages, such as high-power density, high efficiency, flexible rotor design and excellent flux-weakening ability [1][2][3]. In order to fulfill the environment protection and energy conservation, it is vital to investigate and improve the efficiency performance of permanent magnet (PM) synchronous motor (PMSM), in particular for IPMSMs under complex operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Analysis on Efficiency Performance of Interior Permanent Magnet Synchronous Motor

Lixin,

Xiaoyuan,

Shuangshuang

et al. 2023

IEEJ Transactions Elec Engng

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This paper investigates the influence of the loss distribution and magnetic saturation on the efficiency performance, which includes the location of maximum efficiency point, the size of high‐efficiency region and the value of maximum efficiency, for an interior permanent magnet synchronous motor (IPMSM). The loss expressions considering magnetic saturation are first proposed and then the efficiency‐losses function model of the IPMSM is constructed. The efficiency performance of the motor is analyzed quantitatively. The general principle is summarized including adjusting the location of maximum efficiency point, expanding the size of high‐efficiency zone and improving the maximum value of efficiency from the perspective of loss distribution and magnetic saturation. Two IPMSMs with different magnetic circuit characteristics are designed to verify the correctness of the analytical method by finite‐element analysis (FEA). Finally, prototypes are manufactured for the experiment and measurement results are given for validations. © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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“…Katsumi Yamazaki et al [5] used electromagnetic field analysis to study the loss caused by the circulation in the armature winding of a permanent magnet synchronous motor. Gengji Wang et al [6] analyzed rotor loss by using the equivalent magnetic circuit method considering the time harmonic magnetomotive force. Based on the analysis of the rotor loss, a method to reduce rotor loss without changing the stator structure and winding current was proposed.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on No-Load Loss Characteristics of an Alternating Current Excitation Motor

Xu,

Ruan,

Wang

et al. 2023

Electronics

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An AC excitation power supply will produce a series of harmonic currents in motors compared to the conventional power supply, increase the time harmonic component, and then generate a harmonic magnetic field; harmonics will cause motor vibrations and noise in the motor and will produce a corresponding additional loss, increasing the motor temperature rise; these key technical problems need to be solved in domestic pumped storage AC excitation motor engineering applications. Herein, the no-load loss characteristic test of a 3 MW alternating current excited motor was mainly carried out using a test prototype of the 3 MW alternating current excitation motor. Further, with the aid of the finite element method, the numerical study of the no-load loss characteristics of a 3 MW alternating current excited motor was performed. The relationship between the key factors such as the no-load characteristics, no-load loss characteristics, and constant loss and voltage per unit value is analyzed, and the variation law of the no-load core loss of motors under different loads is explored. The results demonstrate that, under no-load conditions, when the applied voltage was less than the rated voltage, the voltage was proportional to the current. When the applied voltage was more significant than the rated voltage, the current increased as the voltage increased, but the relationship between the two was no longer proportional. The constant loss of the motor maintained a linear relationship with the square of the unit value of the voltage scale. When the square of the unit value of the voltage scale was zero, the loss was equivalent to the wind friction loss under no load. The core loss increased with the increase in load, and the greater the load, the faster the increase rate of the motor iron loss. The comparison deviation between the test and simulation results was less than 10%. The simulation and experimental results verified the effectiveness of finite element modeling and the finite element calculation method.

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Equivalent Magnetic Circuit Reluctance Optimization for Rotor Loss Reduction in Permanent Magnet Synchronous Motor for UPS-FESS

Cited by 5 publications

References 15 publications

A Review of Flywheel Energy Storage System Technologies

A Review of Flywheel Energy Storage System Technologies

Quantitative Analysis on Efficiency Performance of Interior Permanent Magnet Synchronous Motor

Experimental Study on No-Load Loss Characteristics of an Alternating Current Excitation Motor

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