Dynamic genetic algorithm in model for vibrations of power transformer windings

Marks, Janis; Vītoliņa, Sandra

doi:10.1109/icepe.2018.8559932

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…The flowchart of the proposed model is displayed in Fig. 2 and this vibration simulation approach is interlinked with the previous research for winding mechanical defect detection [15]. The proposed model is based on the replacement of magnetic core with mass and spring system that is moved by equivalent forces of magnetostriction effect.…”

Section: The Proposed Magnetostrictive Vibration Modelmentioning

confidence: 99%

“…Both the deletion and reproduction processes are partly randomized. However, there is a gradient approach used as based in the previous research [15]. The better the fitness function of an individual compared to the corresponding population, the smaller the change of this individual to be deleted and larger the change of reproduction form of this individual.…”

Section: The Proposed Magnetostrictive Vibration Modelmentioning

confidence: 99%

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Magnetostrictive Vibration Model for Evaluation of Mechanical Integrity of Power Transformer Magnetic Core

Marks

Vītoliņa

Dirba

2019

Latvian Journal of Physics and Technical Sciences

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Magnetostriction process creates vibrations within magnetic core of a power transformer. This effect can cause delamination of magnetic core layers and increase the vibration amplitudes on the surface of transformer tank. In this paper, a magnetostrictive vibration model is proposed for improved evaluation of the mechanical integrity of magnetic core and the finding of possible mechanical defects. This model is based on the simulation of magnetostrictive vibrations by replacing the magnetic core with mass and spring system, and application of a dynamic genetic algorithm in order to find the necessary system configuration. A case study is provided structurally modelling magnetic core in Matlab and Matlab Simulink with the analysis of simulated vibrations that indicate a possible mechanical defect.

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Section: The Proposed Magnetostrictive Vibration Modelmentioning

confidence: 99%

Section: The Proposed Magnetostrictive Vibration Modelmentioning

confidence: 99%

Magnetostrictive Vibration Model for Evaluation of Mechanical Integrity of Power Transformer Magnetic Core

Marks

Vītoliņa

Dirba

2019

Latvian Journal of Physics and Technical Sciences

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“…Ilustrācijā ienākošās blakus esošo masu pozīciju vērtības ir konstantes, bet masu un atsperu sistēmas matemātiskā modeļa shēmā tās ir simulētās vērtības no cita shēmas elementa. Detalizētāks apraksts dots autora rakstā [53].…”

Section: Att Atzīmētais Tinuma Segmentsunclassified