Analytical Investigation Into Magnet Eddy Current Losses in Interior Permanent Magnet Motor Using Modified Winding Function Theory Accounting for Pulsewidth Modulation Harmonics

Balamurali, Aiswarya; Lai, Chunyan; Mollaeian, Aida; Loukanov, Voiko; Kar, Narayan C.

doi:10.1109/tmag.2016.2522100

Cited by 24 publications

(5 citation statements)

References 10 publications

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“…The current establishes the pulsed magneto-motive force, which is decomposed into two components, positive and negative rotations. All of the magnitudes are 0.9(((̇/2) × 1/2)/ ) [14]. The positive rotating component induces a potential and current at the frequency 1 in the stator winding.…”

Section: Mathematical Problems In Engineeringmentioning

confidence: 99%

Current Characteristics Analysis and Fault Injection of an Early Weak Fault in Broken Rotor Bar of Traction Motor

Yin

Xie

Peng

et al. 2018

Mathematical Problems in Engineering

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Aiming at the destructive and irreversible problems of the broken rotor bar fault of the traction motor, the current characteristics of the early weak fault of the single bar are analyzed, and the broken rotor bar fault simulation injection is realized on the experimental platform. Firstly, a damage factor from the change rule of the metal resistance value of a rotor bar is defined. By means of such a damage factor, the relationship between the severity of the fracture of a single rotor bar and the phase resistance of the traction motor was obtained. Through the superposition principle, the traction motor in the fault of the rotor bar was regarded as a normal motor in which the reverse current source was superimposed on the fault rotor bar. The characteristic values of the stator current fault component were obtained when the single bar had broken. Finally, the relationship between the fault characteristics component of the stator current and the fracture severity of the single rotor bar was established. On this basis, on hardware-in-the-loop fault injection benchmark of the traction drive control system based on dSPACE, the gradual injection of early weak faults in the early broken rotor bar was carried out and the results were analyzed. The experimental data demonstrated the correctness of the current characteristics analysis and fault injection.

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Section: Mathematical Problems In Engineeringmentioning

confidence: 99%

Current Characteristics Analysis and Fault Injection of an Early Weak Fault in Broken Rotor Bar of Traction Motor

Yin

Xie

Peng

et al. 2018

Mathematical Problems in Engineering

View full text Add to dashboard Cite

show abstract

“…To calculate power loss in PMSMs in [55], two winding and rectifier topologies were considered (three-phase bridge rectifier and two three-phase bridges rectifiers connected in series). In [56], the harmonics caused by the PWM were incorporated into a series of steps to calculate the stator MMF. The eddy-current losses caused by the fundamental time harmonic of the winding have been calculated [57].…”

Section: Supply and Controlmentioning

confidence: 99%

Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis

Ouamara

Dubas

2019

MCA

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Eddy-current analysis is an important research field. This phenomenon occurs in multiple areas and has several applications: electromagnetic braking, repulsive effects, levitation, etc. Thereby, this paper is limited to eddy-current study in rotating electrical machines. In the design process, if the permanent-magnet (PM) loss calculation is very important, the overheating due to eddy-currents must be taken into account. The content of this paper includes sources, calculation methods, reduction techniques, and thermal analysis of PM eddy-current losses. This review aims to act as a guide for the reader to learn about the different aspects and points to consider in studying the eddy-current.

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“…The mathematical expressions most commonly used in eddy-current loss calculations are explained with equations in [6]. A significant segmentation of conductive massive parts may permit a significant reduction in the eddy-current losses [5,[11][12][13][14][15][16][17][18][19][20][21][22]. The conductive material (such as magnets in electrical machines) can be segmented radially, axially, or circumferentially, depending on the direction of the applied magnetic field.…”

Section: Introduction 1preamblementioning

confidence: 99%

Volumic Eddy-Current Losses in Conductive Massive Parts with Experimental Validations

Plait

Dubas

2022

Energies

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In this paper, the analytical determination of volumic eddy-current losses in rectangular-shaped conductive massive parts is presented with experimental validations. Eddy currents, as well as the resulting volumic losses, are generated by a sinusoidal spatially uniform applied magnetic field. A U-shaped electromagnetic device with a flat mobile armature (or adjustable air gap) is used to measure the eddy-current losses. The experimental device, its instrumentation, and the conductive massive parts are presented in detail in the paper. Thereafter, the magnetic field distribution applied on the conductive massive parts, which is the mean input data for the eddy-current loss model, is studied. A two-dimensional (2D) numerical model, under the FEMM software, for the magnetic field calculation was also developed. A comparative analysis between the experimental measurements and the numerical results allowed the distribution of the applied magnetic field to be accurately validated. In the final phase, the objective was to estimate the volumic eddy-current losses in rectangular-shaped aluminium conductive massive parts generated by the variation of this applied magnetic field. An analytical model, based on the Maxwell–Fourier method, for the accurate prediction of eddy-current losses has also been developed. An electromagnet with and without the conductive massive parts is characterized in terms of power consumption. By using the power conservation method (i.e., Boucherot’s theorem), the eddy-current losses could be quantified experimentally. The influence of segmentation is also studied. The analytical results are compared to the experimental test results.

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Analytical Investigation Into Magnet Eddy Current Losses in Interior Permanent Magnet Motor Using Modified Winding Function Theory Accounting for Pulsewidth Modulation Harmonics

Cited by 24 publications

References 10 publications

Current Characteristics Analysis and Fault Injection of an Early Weak Fault in Broken Rotor Bar of Traction Motor

Current Characteristics Analysis and Fault Injection of an Early Weak Fault in Broken Rotor Bar of Traction Motor

Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis

Volumic Eddy-Current Losses in Conductive Massive Parts with Experimental Validations

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