Jean‐Philippe Lecointe
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View article: Non-oriented electrical steel under bending and annealing effects
Non-oriented electrical steel under bending and annealing effects Open
This study investigates the impact of bending stress and annealing on the mag- netic performance of 3% silicon-iron non-oriented electrical steel (NOES). Samples were bent into diameters of 120 mm, 160 mm, and 200 mm representing the inter…
View article: Instrumentation and Characterization of Mixed GO Electrical Steel Magnetic Cores
Instrumentation and Characterization of Mixed GO Electrical Steel Magnetic Cores Open
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View article: Numerical modeling of magnetic cores with combined electrical steel grades
Numerical modeling of magnetic cores with combined electrical steel grades Open
Purpose This paper aims to investigate the impact of combining grain-oriented electrical steel (GOES) grades on specific iron losses and the flux density distribution within a single-phase magnetic core. Design/methodology/approach This pa…
View article: Power density improvement of axial flux permanent magnet synchronous motor by using different magnetic materials
Power density improvement of axial flux permanent magnet synchronous motor by using different magnetic materials Open
Purpose The purpose of this paper is to exploit the optimal performances of each magnetic material in terms of low iron losses and high saturation flux density to improve the efficiency and the power density of the selected motor. Design/m…
View article: Electromagnetic Study of High Power Density : PMSM for Automotive Application
Electromagnetic Study of High Power Density : PMSM for Automotive Application Open
This paper presents an analytical design method to improve the power density of an interior permanent magnet synchronous machine (PMSM) with multi-variable and multi-objective optimization based on a genetic algorithm (NSGA2). A 12-slot/8-…
View article: Analysis of Flux Density and Iron Loss Distributions in Segmented Magnetic Circuits Made With Mixed Electrical Steel Grades
Analysis of Flux Density and Iron Loss Distributions in Segmented Magnetic Circuits Made With Mixed Electrical Steel Grades Open
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View article: Performance comparison of axial-flux switched reluctance machines with non-oriented and grain-oriented electrical steel rotors
Performance comparison of axial-flux switched reluctance machines with non-oriented and grain-oriented electrical steel rotors Open
This paper studies the performance of an axial-flux switched reluctance machine (AFSRM) using GOES (grain-oriented electrical steel) in its rotor and comparing it to a NOES (non-oriented electrical steel) rotor. Indeed, the AFSRM structure…
View article: High temperature machine: Characterization of materials for the electrical insulation
High temperature machine: Characterization of materials for the electrical insulation Open
This paper aims to present and analyze the materials adapted to design a machine that can work with a high current density without any specific cooling system. In other words, the machine is equipped with material that supports high intern…
View article: Analytical study of air-gap surface force – application to electrical machines
Analytical study of air-gap surface force – application to electrical machines Open
The Maxwell stress tensor (MST) method is commonly used to accurately compute the global efforts, such as electromagnetic torque ripple and unbalanced electromagnetic forces in electrical machines. The MST has been extended to the estimati…
View article: Effect of Mesh-to-Mesh Projection on the Magnetic Tooth Forces Calculation in Electrical Machines
Effect of Mesh-to-Mesh Projection on the Magnetic Tooth Forces Calculation in Electrical Machines Open
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View article: Investigating the use of grain-oriented electrical steel in axial-flux switched reluctance machines
Investigating the use of grain-oriented electrical steel in axial-flux switched reluctance machines Open
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View article: Hardware Implementation of Modified Backstepping Control for Sensorless Induction Motor Drive
Hardware Implementation of Modified Backstepping Control for Sensorless Induction Motor Drive Open
This paper presents a hardware implementation of sensorless Backstepping control for induction motor drive. The presented Backstepping control scheme has been designed in the stationary reference frame to reduce the control algorithm compl…
View article: Comparison of 8/6 radial and axial flux switched reluctance machines
Comparison of 8/6 radial and axial flux switched reluctance machines Open
Purpose This paper aims to deal with a performance comparison of an 8/6 radial-flux switched reluctance machine (RFSRM) and an axial-flux switched reluctance machine (AFSRM), presenting equivalent active surfaces. Design/methodology/approa…
View article: Guest editorial
Guest editorial Open
from the Artois University were the Chairmen of the Organizing Committee.The first EPNC Symposium took place in Pozna n, Poland, in November 1972.The first 11 conferences were local meetings, although speakers from other countries also par…
View article: Application Limits of the Airgap Maxwell Tensor
Application Limits of the Airgap Maxwell Tensor Open
Airgap Maxwell tensor is widely used in numerical simulations to accurately compute global magnetic forces and torque but also to estimate magnetic surface force waves, for instance when evaluating magnetic stress harmonics responsible for…
View article: Experimental Benchmark for Magnetic Noise and Vibrations Analysis in Electrical Machines
Experimental Benchmark for Magnetic Noise and Vibrations Analysis in Electrical Machines Open
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View article: Influence of massive ferromagnetic shaft on the distribution of electromagnetic field and magnetising current for two‐ and four‐pole induction motors at frequencies of 50 and 200 Hz
Influence of massive ferromagnetic shaft on the distribution of electromagnetic field and magnetising current for two‐ and four‐pole induction motors at frequencies of 50 and 200 Hz Open
In this study, the authors aimed to analyse the influence of massive ferromagnetic shaft on the distribution of the electromagnetic field and to evaluate the magnetising current from the mains. To achieve this, they used motors powered by …
View article: Noninvasive Detection of Winding Short-Circuit Faults in Salient Pole Synchronous Machine With Squirrel-Cage Damper
Noninvasive Detection of Winding Short-Circuit Faults in Salient Pole Synchronous Machine With Squirrel-Cage Damper Open
This study presents an analytical and experimental method for detecting internal turn-to-turn short circuits both in the rotor or in the stator in salient pole synchronous generator machines (SSGM) connected to local power grid. Two main m…
View article: Induction motor equivalent circuit identification from finite element results
Induction motor equivalent circuit identification from finite element results Open
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View article: An Improved 2-D Subdomain Model of Squirrel-Cage Induction Machine Including Winding and Slotting Harmonics at Steady State
An Improved 2-D Subdomain Model of Squirrel-Cage Induction Machine Including Winding and Slotting Harmonics at Steady State Open
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View article: AC Variable-Speed Drives and Noise of Magnetic Origin: A Strategy to Control the PWM Switching Effects
AC Variable-Speed Drives and Noise of Magnetic Origin: A Strategy to Control the PWM Switching Effects Open
The presented developments concern the definition of a method to characterize simply the pulse width-modulated (PWM) switching three-phase harmonic systems. This characterization, which makes it possible to control the components generated…
View article: Influence of the supply voltage variations on the external magnetic field emitted by electical machines
Influence of the supply voltage variations on the external magnetic field emitted by electical machines Open
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View article: Determination of Specific Losses in the Limbs of an Epstein Frame Using a Three Epstein Frame Methodology Applied to Grain Oriented Electrical Steels
Determination of Specific Losses in the Limbs of an Epstein Frame Using a Three Epstein Frame Methodology Applied to Grain Oriented Electrical Steels Open
An experimental method to characterize the magnetic properties of Grain Oriented Electrical Steel in the rolling direction is proposed in this paper. It relies on the use of three 25 cm Epstein frames combined to generate three test-frames…
View article: A new approach to the critical induction in transformer cores
A new approach to the critical induction in transformer cores Open
The most critical areas in power transformers are their corner joints where the magnetic flux distribution presents a very high heterogeneity. This heterogeneity results from several parameters such as the geometry of the magnetic core, th…
View article: A review of subdomain modeling techniques in electrical machines:performances and applications
A review of subdomain modeling techniques in electrical machines:performances and applications Open
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