Results 11 to 20 of about 84,506 (287)

Transforming solid-state precipitates via excess vacancies [PDF]

open access: yesNature Communications, 2020
AbstractMany phase transformations associated with solid-state precipitation look structurally simple, yet, inexplicably, take place with great difficulty. A classic case of difficult phase transformations is the nucleation of strengthening precipitates in high-strength lightweight aluminium alloys.
Laure Bourgeois   +4 more
openaire   +4 more sources

Design of Three Phase Solid State Transformer Deployed within Multi-Stage Power Switching Converters

open access: yesApplied Sciences, 2019
This paper presents a symmetrical topology for the design of solid-state transformer; made up of power switching converters; to replace conventional bulky transformers. The proposed circuitry not only reduces the overall size but also provides power flow
Umair Tahir   +8 more
doaj   +1 more source

Hosting Capacity Improvement Method Using MV–MV Solid-State-Transformer

open access: yesEnergies, 2021
As a large number of distributed generations are connected to the distribution system, research on the hosting capacity is actively being conducted. In particular, various methods, such as smart inverter functionality, co-located energy storage systems ...
Jin-Sol Song   +3 more
doaj   +1 more source

A Solid State Transformer model for power flow calculations [PDF]

open access: yes, 2017
This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST
Guerra Sánchez, Luis Gerardo   +1 more
core   +2 more sources

Review of the Solid-State Transformers and an Application of Full Bridge DC/DC Converter

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2019
With the increased power to weight ratio, corresponding to the developments in material science, the demand for high frequency transformers (HFT) in air, land, marine and aerospace technologies where the weight is particularly important has increased ...
Oğuz ALKUL, Şevki DEMİRBAŞ
doaj   +1 more source

Predictive Control-Based NADIR-Minimizing Algorithm for Solid-State Transformer

open access: yesEnergies, 2021
Solid-state transformers (SSTs) are becoming an important solution to control active distribution systems. Their significant flexibility in comparison with traditional magnetic transformers is essential to ensure power quality and protection coordination
Carlos Fuentes   +2 more
doaj   +1 more source

Active control of DC fault currents in DC solid-state transformers during ride-through operation of multi-terminal HVDC systems [PDF]

open access: yes, 2016
When a pole-to-pole dc fault occurs in a multi-terminal HVDC system, it is desirable that the stations and dc solid-state transformers on healthy cables continue contributing to power transfer, rather than blocking.
Li, Rui   +3 more
core   +1 more source

Development of a Medium Voltage, High Power, High Frequency Four-Port Solid State Transformer

open access: yesCES Transactions on Electrical Machines and Systems, 2022
The power and voltage levels of renewable energy resources is growing with the evolution of the power electronics and switching module technologies.
Ahmad El Shafei   +4 more
doaj   +1 more source

Methods of Humidityanalysis in Transformer Oil

open access: yesCommunications, 2010
To prevent failure states of transformer, we performed different types of measurements. We made measurements of a frequency dependence of capacity of test transformer immersed in tank with transformer oil.
Miroslav Gutten, Jozef Kudelcik
doaj   +1 more source

The Development and Evaluation of a High-Frequency Toroidal Transformer for Solid-State Transformer Applications

open access: yesEngineering Proceedings, 2023
The performance and efficiency of high-frequency transformers (HFTs) are significantly influenced by leakage inductance. To improve the efficiency of HFTs, it is crucial to consider the effects of leakage inductance during the design and analysis ...
Abdul Shakoor   +2 more
doaj   +1 more source

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