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Simplified Current-Equivalent Circuit Models of Synchronous Reluctance Machines and Salient Pole Synchronous Machines Considering the Reluctance Torque
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Electrical Engineering, Electricity.ORCID iD: 0000-0003-1027-8914
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Electrical Engineering, Electricity.ORCID iD: 0000-0001-6798-0689
2024 (English)In: Energies, E-ISSN 1996-1073, Vol. 17, no 5, article id 1015Article in journal (Refereed) Published
Abstract [en]

This paper describes a simplified one-phase equivalent circuit model of three-phase salient pole synchronous machines and synchronous reluctance machines. The model represents the pole saliency as a susceptance, with a magnitude based on the pole saliency and a phase angle based on twice the load angle. The reluctance torque itself is then modeled equivalent to a conductance. The model is made as an extension to Norton equivalents, where the internal inductance is connected as a shunt. This approach shares similarities to the magnetization shunt branch in circuit models of transformers and induction motors. The model is derived using the rotating dq-frame, using Park transform and two-reaction theory. The model is then rewritten to better fit one-phase equivalent circuit models, with the terminal voltage as the angular reference. The resulting two-pole model can then more easily be combined with basic circuit theory, thereby synthesizing dq-theory and phasor circuit models.

Place, publisher, year, edition, pages
MDPI, 2024. Vol. 17, no 5, article id 1015
Keywords [en]
salient pole, synchronous machines, synchronous reluctance machines, complex reluctance, complex susceptance, two-reaction theory, dq-frame
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:uu:diva-525963DOI: 10.3390/en17051015ISI: 001182696500001OAI: oai:DiVA.org:uu-525963DiVA, id: diva2:1848392
Funder
StandUpAvailable from: 2024-04-03 Created: 2024-04-03 Last updated: 2024-04-03Bibliographically approved

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Mörée, GustavLeijon, Mats

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