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Investigation of Induced Eddy Currents in Micrometer Grains of Magnetic Materials
Magnetic components constitute one essential part of power converters. Understanding the electromagnetic phenomena that occur in these components is essential for the design of power converters. In this perspective, the project is focused on the modelling of induced eddy currents in small particles constituting powder cores.
Magnetic materials constitute inductors and transformers used in the manufacturing
of power electronic converters, which enable the conversion of
electrical energy. The magnetic material on which the project is focused
is magnetic powder core, which is a mixture of magnetic particles homogeneously
distributed into a non-magnetic material. As each particle is
insulated from the others, the induced eddy currents are distributed within
the particle itself. In this project, you will develop analytical models to
describe the distribution of the induced eddy currents in particles with different
shapes. The development of physics-based models that describe the
losses in magnetic materials, such as the one proposed here, is part of a
wider class of models that describe the power converters’ behaviour. These
models are then implemented in Matlab, building a modelling architecture,
and are essential for the virtual prototyping of power converters, which is
a significant topic in power electronics. As a result, this project is linked
to a relevant engineering problem.
Magnetic materials constitute inductors and transformers used in the manufacturing of power electronic converters, which enable the conversion of electrical energy. The magnetic material on which the project is focused is magnetic powder core, which is a mixture of magnetic particles homogeneously distributed into a non-magnetic material. As each particle is insulated from the others, the induced eddy currents are distributed within the particle itself. In this project, you will develop analytical models to describe the distribution of the induced eddy currents in particles with different shapes. The development of physics-based models that describe the losses in magnetic materials, such as the one proposed here, is part of a wider class of models that describe the power converters’ behaviour. These models are then implemented in Matlab, building a modelling architecture, and are essential for the virtual prototyping of power converters, which is a significant topic in power electronics. As a result, this project is linked to a relevant engineering problem.
Marco Cotti, ETL F11, cotti@hpe.ee.ethz.ch
Marco Cotti, ETL F11, cotti@hpe.ee.ethz.ch
50% Modelling
50% Theory
50% Modelling 50% Theory
• Interest in power electronic systems
and material science
• Interest and knowledge in Electromagnetics,
Working language: English
• Interest in power electronic systems and material science • Interest and knowledge in Electromagnetics, Working language: English
Evaluation_of__e_c__in_powder_cores.pdf
