Characterization of the Local Incremental Permeability of a Ferromagnetic Plate Based on a Four Needles Technique
TypeArticles dans des revues avec comité de lecture
The performances of electrical machines depend highly on the behavior of ferromagnetic materials. In some applications, these materials operate under DC polarization, i.e. when the magnetic field oscillates around a DC bias. In that condition, it is required to know the incremental permeability which characterizes the magnetic behavior of the material around the operating point. In this paper, a non-destructive approach, involving a combination of experiment and Finite Element (FE) technique, is presented in order to determine the incremental permeability. The proposed sensor is based on the four-needles method. With this sensor, Bowler et al. have proposed a method to determine the initial permeability of homogeneous metal plates based on an analytical model. Here we propose to use the same kind of sensor to determine the incremental permeability. The measurement process is analyzed using a FE model. It is shown that the analytical approach reaches its limits if the permeability of the plate and its thickness become too high. A combination between the measurements and a FE model is introduced to overcome this difficulty to determine the incremental permeability. The study of two magnetic steel samples illustrates the interest of this method.
Showing items related by title, author, creator and subject.
Characterization of the local Electrical Properties of Electrical Machine Parts with non-Trivial Geometry ARBENZ, Laure; BENABOU, Abdelkader; CLENET, Stéphane; MIPO, Jean-Claude; FAVEROLLE, Pierre (IOS Press, 2015)In electrical machines, knowing the electrical conductivity is of importance for the eddy current calculation, especially when massive iron parts are involved. Generally the conductivity is measured on samples of raw ...
Characterization of the local incremental permeability of a ferromagnetic plate based on a four needles technique ARBENZ, Laure; BENABOU, Abdelkader; CLÉNET, Stéphane; FAVEROLLE, Pierre; MIPO, Jean-Claude (IEEE, 2016)The performances of electrical machines depend highly on the behavior of ferromagnetic materials. In some applications, these materials operate under DC polarization, i.e. when the magnetic field oscillates around a DC ...
BORSENBERGER, Marc; BENABOU, Abdelkader; BAUDOUIN, Cyrille; BIGOT, Régis; FAVEROLLE, Pierre; MIPO, Jean-Claude (IOS Press, 2018)Magnetic parts are usually composed of a stack of electrical steel laminations to reduce the eddy current losses. However, for cost reasons or for specific applications the magnetic core can be made from massive steel and ...
RAMAROTAFIKA, Rindra; BENABOU, Abdelkader; MIPO, Jean-Claude; CLENET, Stéphane (IEEE, 2012)Manufacturing processes may introduce a significant variability on the magnetic properties of claw pole generator stators. The present work deals with the analysis of two groups of stator samples. The first group is composed ...
EL BECHARI, Reda; BRISSET, Stéphane; CLENET, Stéphane; MIPO, Jean-Claude (IEEE, 2017)Meta-models proved to be a very efficient strategy for optimization of expensive black-box models, e.g. Finite Element simulation for electromagnetic devices. It enables to reduce the computational burden for optimization ...