Improved Approaches Toward Analysis of Electromagnetic Processes in Electrodynamical Devices Based on the Theory of Electromagnetic Field

doi:10.23919/CJEE.2023.000041

Chinese Journal of Electrical Engineering ›› 2023, Vol. 9 ›› Issue (4): 88-106.doi: 10.23919/CJEE.2023.000041

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Improved Approaches Toward Analysis of Electromagnetic Processes in Electrodynamical Devices Based on the Theory of Electromagnetic Field

Yaroslav Kovivchak^*

Department of Automated Control Systems, Lviv Polytechnic National University, Lviv 79013, Ukraine

Received:2022-12-22 Revised:2023-07-05 Accepted:2023-08-11 Published:2024-01-08
Contact: *E-mail: ya_kovivchak@yahoo.com
About author:Yaroslav Kovivchak was born in Boryslav, Lviv region, Ukraine, in 1966. In 1995, he graduated from the Lviv Polytechnic Institute, Department of Automation in the specialty Automation and Telemechanics. In 1995, he finished his postgraduate course at the Department of Theoretical and General Electrical Engineering of Lviv Polytechnic State University. In 1996, he defended his Ph.D. thesis in specialty Theoretical Electrical Engineering. From 1996 till 2002, he worked as a Junior Researcher, Researcher, and Senior Researcher at the Department of Theoretical and General Electrical Engineering of Lviv Polytechnic National University. Since 2002, he works as an Associate Professor of the Department of Automated Control Systems of Lviv Polytechnic National University.
His current research interests include the theory of electromagnetic field, mathematical modelling of electromagnetic processes in electrodynamical devices, development of methods and means for analysis of electromagnetic processes in electrodynamical devices.

Abstract

Abstract: In the course of designing and developing different-purpose electrodynamical devices, electromagnetic processes in movable and immovable media need to be calculated simultaneously. The solution for such tasks based on the electromagnetic field theory is associated with the emergence of significant theoretical and practical difficulties. The problems that arise during the calculation of electromagnetic processes in movable and immovable media of electrodynamical devices using the electromagnetic field theory are examined in this study. Improved approaches toward the calculation of electromagnetic processes in electrodynamical devices using Maxwell's equations are suggested. Notably, calculating electromagnetic processes in movable and immovable media using Maxwell's equations necessitates consideration of the systems of coordinates where the electromagnetic phenomena are analyzed. Theoretically substantiated methods of calculating electromagnetic processes in movable and immovable media based on the principles of electromagnetic field theory are proposed. The methods consider the systems of coordinates where the analysis of electromagnetic phenomena is conducted. The effectiveness of the suggested methods for example in calculating electromagnetic processes in movable and immovable media of the turbogenerator is illustrated.

Key words: Theory of electromagnetic field, movable and immovable media, systems of coordinates, mathematical modelling, electrodynamical

Yaroslav Kovivchak. Improved Approaches Toward Analysis of Electromagnetic Processes in Electrodynamical Devices Based on the Theory of Electromagnetic Field[J]. Chinese Journal of Electrical Engineering, 2023, 9(4): 88-106.

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Improved Approaches Toward Analysis of Electromagnetic Processes in Electrodynamical Devices Based on the Theory of Electromagnetic Field

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