Electromechanical vibration properties of transformer cores

Peter Du

Research output: Thesis › Doctoral Thesis

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Abstract

This thesis comprises a body of work that investigates the electromechanical vibration properties of transformer cores. Two extensive field tests were conducted to characterise transformer noise and vibration. As the source of vibration excitation, the magnetic field of the transformer core is investigated based on the online modelled hysteresis loops. An engineering model for the electromagnetic force at the structural discontinuities, as one of the major excitation force, is developed. The frequency response function of the transformer core, from force to vibration, is simulated efficiently and accurately using equivalent Young's modulus and finite element method.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Thesis sponsors
Award date15 Jul 2019
DOIs
Publication statusUnpublished - 2019

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Hysteresis loops
Frequency response
Elastic moduli
Magnetic fields
Finite element method

Cite this

Du, Peter. / Electromechanical vibration properties of transformer cores. 2019.
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Du, P 2019, 'Electromechanical vibration properties of transformer cores', Doctor of Philosophy, The University of Western Australia. https://doi.org/10.26182/5d4d14ba62efc

Electromechanical vibration properties of transformer cores. / Du, Peter.

2019.

Research output: Thesis › Doctoral Thesis

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AB - This thesis comprises a body of work that investigates the electromechanical vibration properties of transformer cores. Two extensive field tests were conducted to characterise transformer noise and vibration. As the source of vibration excitation, the magnetic field of the transformer core is investigated based on the online modelled hysteresis loops. An engineering model for the electromagnetic force at the structural discontinuities, as one of the major excitation force, is developed. The frequency response function of the transformer core, from force to vibration, is simulated efficiently and accurately using equivalent Young's modulus and finite element method.

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KW - Magnetic field

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KW - Algorithm

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Du P. Electromechanical vibration properties of transformer cores. 2019. https://doi.org/10.26182/5d4d14ba62efc

Access to Document

  • THESIS - DOCTOR OF PHILOSOPHY - DU Xuhao - 2019

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