Results 11 to 20 of about 9,003 (260)

Hybrid Foil-Litz Windings for Highly Efficient and Compact Medium-Frequency Transformers

open access: yesIEEE Open Journal of Power Electronics, 2023
Medium-frequency transformers (MFTs) are key components in solid-state transformers, where they provide galvanic isolation and a certain voltage transfer ratio between a MV grid and a LV bus.
Andrea Cremasco   +3 more
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 Hybrid Solid State Transformer Based on Multi-Level Converter Using SiC MOSFET

open access: yesEnergies, 2018
As the types of loads have been diversified and demand has increased, conventional distribution transformers are difficult to maintain the constant voltage against voltage drop along with distance, grid voltage swell/sag, and various loads.
Chun-gi Yun, Younghoon Cho
doaj   +1 more source

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

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

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

Stability Assessment of Voltage Control Strategies for Smart Transformer-Fed Distribution Grid

open access: yesIEEE Access, 2020
The smart transformer (ST), a solid-state-based transformer with control and communication functionalities, determines the voltage of the low voltage (LV) network. Due to the similar control purpose, the classic multiple feedback loop (multiloop) voltage
Zhi-Xiang Zou   +3 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

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

Solid-state transformer based on modular multilevel converters

open access: yesThe Journal of Engineering, 2019
A new highly compact topology for solid-state transformers is presented. It is based on modular multilevel converters and, therefore, has their usual advantages such as superior voltage shape, high reliability, and scalability.
Patrick Himmelmann, Marc Hiller
doaj   +1 more source

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