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PRZEGLĄD ELEKTROTECHNICZNY, 2018 Some of the next articles are maybe not open access.
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A power converter autotransformer
8th International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.98EX227), 2002The objective of this paper is to present a new topology of power converters which use a special autotransformer-ADZ. This autotransformer allows independent control of voltage phasors, phase by phase. This feature permits the application of this converter in unbalanced systems. This paper analyzes the technical feasibility of the transformer converter
J.P.G. Abreu +3 more
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A stabilized single phase electronic autotransformer
IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029), 2003A stabilized single-phase electronic step-down autotransformer with improved switching characteristics is presented in this paper. It employs bi-directional switches in a four step PWM switching strategy for commutating inductive load currents. A low cost microcontroller is employed simplifying the control circuitry, giving robustness and reliability ...
Trabach, Emerson P +3 more
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EHV Application of Autotransformers
IEEE Transactions on Power Apparatus and Systems, 1967The universal method of voltage transformation from EHV levels to lower voltage systems is through the use of the autotransformer. The characteristic of the autotransformer is profoundly influenced by the tertiary winding or the lack of it. This paper discusses the influence of the tertiary winding and its placement, fault magnitude and short circuit ...
G. Alexander, William. Mcnutt
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Dynamical Analysis of an Autotransformer
2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy (PESGRE2020), 2020The auto-transformer differs from a two winding transformer, in that the power is transferred from primary to secondary inductively as well as by conduction because there is a direct electrical connection between the primary and secondary windings of an auto-transformer.
Abhijeet Lanjewar +2 more
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On special Backlund autotransformations
Journal of Physics A: Mathematical and General, 1991All Klein-Gordon, omega xy=f ( omega ), and evolution, omega t=f ( omega , omega x,. . ., omega x.7T. .$x), equations admitting autotransformations phi =a( omega ) are found (a( omega ) is such a function of omega and its finite-order derivatives that any solution omega is mapped into a solution phi of the same equation).
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Tertiary windings in autotransformers
Electrical Engineering, 1961AUTOTRANSFORMERS in power systems are usually Y-connected and commonly have delta-connected tertiary windings. Is the tertiary winding needed? If needed, what should be its size? These are two questions to consider when applying an autotransformer.
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Three-Phase/Six-Phase Conversion Autotransformers
IEEE Power Engineering Review, 2002The first commercial demonstration of six-phase transmission, the Goudey-Oakdale three-phase/six-phase project, used two delta wye-grounded three-phase transformers to realize the required phase/voltage conversion. This paper proposes the usage of autotransformers for phase/voltage conversion for the actual three-phase/six-phase systems to be built in ...
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