Concept

Distribution transformer

Publications associées (32)

DC Power Distribution Networks with Direct Current Transformers

The shift towards DC power distribution networks, enabled by power electronics technologies, is changing the nature of electrical power systems. Nowadays, DC power distribution networks can effectively support the high penetration of distributed energy res ...

EPFL2024

A Lightweight Device for Energy Harvesting from Power Lines with a Fixed-Wing UAV

Dario Floreano, William John Stewart

Modern UAVs (Unmanned Aerial Vehicles) suffer from restrictions in flight range and time due to battery capacity limitations. One way to overcome these limitations is to harvest energy from overhead power lines. A growing body of scientific literature has ...

IEEE2022

Assessment of the Lightning Performance of overhead distribution lines based on Lightning Location Systems data

This article presents the Lightning Performance (LP) assessment of a realistic portion of the Italian distribution network with the use of probability distributions for lightning parameters inferred from local data recorded by a Lightning Location System ( ...

2022

An Efficient Methodology for the Evaluation of the Lightning Performance of Overhead Lines

This article proposes a method for the derivation of a formula that links the maximum lightning-induced-overvoltage occurring on an overhead distribution line with the variables that characterize the lightning return stroke, such as the peak current, front ...

2021

Lightning-Induced Voltages on Overhead Distribution Lines Computed through Analytical Expressions for the Electromagnetic Fields

Marcos Rubinstein, Farhad Rachidi-Haeri

The evaluation of lightning ElectroMagnetic (EM) fields represents the most cumbersome part of the lightning-induced voltages computation process. Their evaluation is usually performed through a numerical routine or with simplified analytical expressions, ...

2021

Expanded Phase Distribution in Low Average Layer-Number 2D Perovskite Films: Toward Efficient Semitransparent Solar Cells

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Yong Ding, Bin Ding, Hiroyuki Kanda, Xuehui Liu, Cheng Liu, Hao Huang

The application of low average layer-number (< n & rang;

2021

MMC-based conversion for MVDC applications

Stefan Milovanovic

In recent years, DC grids have gained momentum due to the advantages they display over their AC counterparts. For instance, high voltage DC grids have been established as the most prominent solution in the underwater power transmission or interconnection o ...

EPFL2020

Enhanced DAB for Efficiency Preservation using Adjustable-Tap High-Frequency Transformer

Elison de Nazareth Matioli, Armin Jafari, Furkan Karakaya

Efficient DC-DC power-conversion with wide-span voltage-regulation is crucial to a sustainable and robust power electronics system. Dual-active-bridge (DAB) offers straight-forward regulation and its transformer enables voltage step-up/down required for ma ...

2019

Sensitivity Analysis of Medium Frequency Transformer Designs for Solid State Transformers

Drazen Dujic, Marko Mogorovic

This paper discusses the technical challenges and trade-offs tied to design of medium frequency transformers for medium-voltage high-power applications and emerging solid state transformers. A dedicated design optimization algorithm is used to generate the ...

2019

Modeling and Design Optimization of Medium Frequency Transformers for Medium-Voltage High-Power Converters

Marko Mogorovic

Novel high-power medium-voltage converter technologies offering galvanic insulation are needed to support the development of the emerging medium-voltage direct-current grids and further improve the performance of various other applications such as traction ...

EPFL2019

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