Results 211 to 220 of about 8,989 (265)
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2018
Die Autoren danken Herrn MSc ETH Thomas Guillod fur Berechnungen und Simulationen zur den Skalierungsgesetzen von Mittelfrequenztransformatoren und Dr. sc. ETH Gabriel Ortiz, ABB-Forschungszentrum Schweiz, fur Diskussionen zu Schaltungstopologien und Einsatzbereichen von Solid-State-Transformer-Systemen.
Dierk Schröder, Rainer Marquardt
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Die Autoren danken Herrn MSc ETH Thomas Guillod fur Berechnungen und Simulationen zur den Skalierungsgesetzen von Mittelfrequenztransformatoren und Dr. sc. ETH Gabriel Ortiz, ABB-Forschungszentrum Schweiz, fur Diskussionen zu Schaltungstopologien und Einsatzbereichen von Solid-State-Transformer-Systemen.
Dierk Schröder, Rainer Marquardt
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Soft-switching solid state transformer (S4T)
2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016This paper presents a new topology for a fully bidirectional soft-switching solid state transformer (S4T). The minimal topology, featuring 12 main devices and a high-frequency transformer, does not use an intermediate DC voltage link, and provides sinusoidal input and output voltages. The S4T can be configured to interface with two-or multi-terminal DC,
Hao Chen, Deepak Divan
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Review on the Development of Solid State Transformer
2021According to future renewable electric energy distribution and management (FREEDM) system, solid state transformers play an important role in smart grid technologies. They have several advantages over conventional transformers such as bi-directional power flow, light in weight, compact size, etc.
Bharat Bhushan Khare +3 more
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2016
Abstract Eutectoid and peritectoid transformations are classified as solid-state invariant transformations. This article focuses primarily on the structures from eutectoid transformations with emphasis on the classic iron-carbon system of steel. It reviews peritectoid phase equilibria that are very common in several binary systems.
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Abstract Eutectoid and peritectoid transformations are classified as solid-state invariant transformations. This article focuses primarily on the structures from eutectoid transformations with emphasis on the classic iron-carbon system of steel. It reviews peritectoid phase equilibria that are very common in several binary systems.
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Auxiliary power supply for solid state transformers
2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS), 2016This paper discusses different ways to obtain an auxiliary power supply (APS) to a solid state transformer (SST) that utilizes the modular AC-DC-DC-AC configuration. A local distributed source, that consists of two APS per module, one for medium voltage (MV) side and another one for low voltage (LV) side is proposed.
Leandro B. Kehler +5 more
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Middle Frequency Transformer Investigation for Solid-State Transformer
2018 International Conference on Smart Grid (icSmartGrid), 2018This paper investigates the middle frequency transformer for the solid-state transformer. It is expected to be used in the traffic and power system. One of the key technologies is the solid-state transformer. The 3kHz, 5kVA transformers with some different core materials are manufactured.
Noriyuki Kimura, Toshimitsu Morizane
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2012
Abstract This chapter discusses the characteristics of eutectoid transformations, a type of solid-state transformation associated with invariant reactions, focusing on the iron-carbon system of steel. It describes the compositions, characteristics, and properties of ferrite, eutectoid, hypoeutectoid, and hypereutectoid structures and how
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Abstract This chapter discusses the characteristics of eutectoid transformations, a type of solid-state transformation associated with invariant reactions, focusing on the iron-carbon system of steel. It describes the compositions, characteristics, and properties of ferrite, eutectoid, hypoeutectoid, and hypereutectoid structures and how
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Solid-state transformer topology selection
2009 IEEE International Conference on Industrial Technology, 2009This paper considers the design criteria of the solid-state transformer circuit, with special focus on the high voltage side. Three plausible multilevel converter configurations are identified and compared in terms of cost and voltage balance requirements.
Wim van der Merwe, Toit Mouton
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A solid-state relay for transformer switching
International Journal of Electronics, 1986A static relay, which can distinguish the magnetizing inrush current from the short-circuit current of a transformer is suggested. This eliminates the use of the desensitizing arrangement or the costly harmonic-current-restraint relay but preserves the inherent features of an over-current relay and the advantages of a static relay.
M. S. JAMIL-ASGHAR +2 more
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Solid State Phase Transformations
2004The crystal structure of a metal is not necessarily stable at all temperatures below the melting temperature. This is due to the fact that the solid always assumes the crystal structure with the lowest Gibbs free energy, even if there are other crystal structures with a slightly higher free energy.
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