Frédéric Dubas
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Développement d’un modèle analytique 2-D pour le diagnostic des électrolyseurs cylindriques Open
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View article: Improved Analytical Model for Axial Flux Permanent-Magnet Machine by Current Sheet Method
Improved Analytical Model for Axial Flux Permanent-Magnet Machine by Current Sheet Method Open
This paper presents a novel sub-domain (SD) model is presented, based on current sheet method, to reduce the order of solving matrix and computational time significantly. The permanent magnets (PMs) of axial flux permanent magnet (AFPM) ma…
Diagnostic and Performance Analysis of a Water Electrolyzer by Magnetic Field Measurements Open
The distribution of the magnetic field generated by an electromagnetic device can provide insights into their operational condition. This paper focuses on diagnosing electrolyzers through magneto-tomography, a method which involves mapping…
Semianalytical modeling of squirrel-cage induction machines with consideration of iron permeability and eddy-currents using elementary subdomain technique Open
Purpose This paper aims to propose a semianalytical model of a squirrel-cage induction machine (SCIM), considering local magnetic saturation and eddy-currents induced in the rotor bars. Design/methodology/approach The regions of the rotor …
Volumic Eddy-Current Losses in Conductive Massive Parts with Experimental Validations Open
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 2D Multi-Layer Model to Study the External Magnetic Field Generated by a Polymer Exchange Membrane Fuel Cell Open
An original innovative two-dimensional (2D) multi-layer model based on the Maxwell–Fourier method for the diagnosis of a polymer exchange membrane (PEM) fuel cell (FC) stack is presented. It is possible to determine the magnetic field dist…
Magnetic Field Calculation for Flat Permanent-Magnet Linear Machines Using a Hybrid Analytical Model Open
This paper proposes an improved two-dimensional (2-D) hybrid analytical method (HAM) in Cartesian coordinates, based on the exact subdomain (SD) technique and the finite-difference method (FDM). It is applied to flat permanent-magnet (PM) …
Semi-Analytical Magnetic Field Calculation for Dual-Rotor Permanent-Magnet Synchronous Machines by Using Hybrid Model Open
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Analysis on the Topology and Control of Power Electronics Converters for Wind Energy Conversion Systems Open
Power Electronics converters become nowadays the most important part in Wind Energy Conversion Systems (WECS). They are an intermediate between the generator and grid to achieve low cost, high power density and reliability. This paper deal…
2-D Steady-State Heat Transfer Prediction in Rotating Electrical Machines Taking into account Materials Anisotropy: Thermal Resistances Network, Exact Analytical and Hybrid Methods Open
This paper presents two-dimensional (2-D) thermal resistances network (TRNM), exact analytical (AM) and hybrid (HM) methods for calculating steady-state temperature and heat flux distribution in rotating electrical machines considering mat…
Elementary Subdomain Technique in Switched Reluctance Machines with the Local Saturation Effect Open
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Review of Multi-Physics Modeling on the Active Magnetic Regenerative Refrigeration Open
Compared to conventional vapor-compression refrigeration systems, magnetic refrigeration is a promising and potential alternative technology. The magnetocaloric effect (MCE) is used to produce heat and cold sources through a magnetocaloric…
Mathematical Models for the Design of Electrical Machines Open
This book is a comprehensive set of articles reflecting the latest advances and developments in mathematical modeling and the design of electrical machines for different applications. The main models discussed are based on the: i) Maxwell–…
Two-dimensional hybrid model for magnetic field calculation in electrical machines: exact subdomain technique and magnetic equivalent circuit Open
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Mathematical Models for the Design of Electrical Machines Open
Electrical machines are used in many electrical engineering applications [...]
Investigation of Volumic Permanent-Magnet Eddy-Current Losses in Multi-Phase Synchronous Machines from Hybrid Multi-Layer Model Open
This paper investigates the permanent-magnet (PM) eddy-current losses in multi-phase PM synchronous machines (PMSM) with concentric winding and surface-mounted PMs. A hybrid multi-layer model, combining a two-dimensional (2-D) generic magn…
A New Subdomain Method for Performances Computation in Interior Permanent-Magnet (IPM) Machines Open
In this research work, an improved two-dimensional semi-analytical subdomain based method for performance computation in IPM machine considering infinite-/finite-magnetic material permeability in pseudo-Cartesian coordinates by using hyper…
Multi-Objective Optimization of Run-of-River Small Hydro-PV Hybrid Power Systems Open
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Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis Open
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 …
Combining the Magnetic Equivalent Circuit and Maxwell–Fourier Method for Eddy-Current Loss Calculation Open
In this paper, a hybrid model in Cartesian coordinates combining a two-dimensional (2-D) generic magnetic equivalent circuit (MEC) with a 2-D analytical model based on the Maxwell–Fourier method (i.e., the formal resolution of Maxwell’s eq…
2-D Analytical Model of Conventional Switched Reluctance Machines Open
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3-D Generic Magnetic Equivalent Circuit Taking Into Account Skin Effect: Magnetic Field and Eddy-Current Losses Open
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GENERAL CALCULATION OF WINDING FACTOR FOR MULTI-PHASE/-LAYER ELECTRICAL MACHINES IRRESPECTIVE OF POLES NUMBER Open
In this paper, a method to calculate the winding factor by only considering stator parameters without the rotor ones is developed. This is interesting because it allows the separation of the stator and rotor design, unlike the existing met…
Multi-Objective Optimization of Run-of-River Small-Hydropower Plants Considering Both Investment Cost and Annual Energy Generation Open
This paper presents the techno-economic evaluation of run-of-river small-hydropower plants. In this regard, a multi-objective optimization procedure is proposed for the optimal sizing of the hydropower plants, and NSGAII is employed as the…
Analytical Modeling of Electromagnetic Noise in Spoke-Type Permanent-Magnet Machines Open
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Two-Dimensional Exact Subdomain Technique of Switched Reluctance Machines with Sinusoidal Current Excitation Open
This paper presents a two-dimensional (2D) exact subdomain technique in polar coordinates considering the iron relative permeability in 6/4 switched reluctance machines (SRM) supplied by sinusoidal waveform of current (aka, variable flux r…
AUTOMATIC WINDING GENERATION USING MATRIX REPRESENTATION - ANFRACTUS TOOL 1.0 Open
This paper describes an original approach dealing with AC/DC winding design in electrical machines. A research software called “ANFRACTUS Tool 1.0”, allowing automatic generation of all windings in multi-phases electrical machines, has bee…
Two-Dimensional Exact Analytical Method for Steady-State Heat Transfer Prediction in Rotating Electrical Machines Open
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An Investigation into the Coupling of Magnetic and Thermal Analysis for Wound-Rotor Synchronous Machine Open
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Nonlinear Adaptive Magnetic Equivalent Circuit of a Radial-Flux Interior Permanent-Magnet Machine using Air-gap Sliding-Line Technic Open
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