Affiliations: [a] Electrical Energy Laboratory, Department of Electrical
Energy, Systems and Automation, Ghent University, Ghent, Belgium | [b] Laboratory of Biomedical Physics, University of
Antwerp, Antwerp, Belgium | [c] Acoustics and Vibration Research Group, Department of
Mechanical Engineering, Free University of Brussels, Brussels, Belgium | Institute of Electrodynamics, Microwave and Circuit
Engineering, University of Technology, Vienna, Austria
Correspondence:
[*]
Corresponding author: Setareh Gorji Ghalamestani, Electrical
Energy Laboratory (EELAB), Department of Electrical Energy, Systems and
Automation (EESA), Ghent University, Ghent, Belgium. E-mail:
[email protected]
Abstract: Magnetostriction, which refers to the deformation of the core
material of transformers and electrical machines, is a main contributor to the
total noise. In this work, a technique is proposed to calculate the
magnetostrictive deformations of the core of the aforementioned devices. This
technique is based on finite element approach with an artificial neural network
model of the magnetostrictive behaviour of the core material. The strain
measurements are carried out by using a dual heterodyne laser interferometer
setup. The proposed technique is then applied to a single-phase test
transformer core. As a validation, the vibration of the magnetised core of the same
setup is measured by using a laser scanning vibrometer.
