Results 41 to 50 of about 114,863 (150)

Development of a Rogowski Coil-Based Lightning Current Measuring System With Wide Frequency Bandwidth for Wind Turbines

open access: yesIEEE Access
Accurate monitoring of lightning currents is critical for incident assessment and the implementation of protective measures in wind turbines. Owing to the complex geometry of turbines, direct measurement is impractical, making indirect approaches, such ...
Sarawuth Pramualsingha   +2 more
doaj   +1 more source

Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers

open access: yesHigh Voltage, 2019
Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers. To apply it to a working transformer, people need to determine how to inject the excitation signal and measure the response ...
Yangchun Cheng   +7 more
doaj   +1 more source

An Adaptive Pulse‐Width Driving Method for Ultra‐Fast Mechanical Switches in DC Interruption Applications

open access: yesIET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
This study introduces an adaptive speed control strategy for fast mechanical switches using an IGBT fully controlled driving circuit. The approach combines PWM‐based current shaping with an intelligent secant algorithm to regulate opening speed in real time without hardware changes.
Wei Li   +4 more
wiley   +1 more source

Desenvolvimento de um sistema de medição de corrente elétrica para aplicação em linhas de transmissão de alta tensão [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Metrologia Científica e Industrial, Florianópolis, 2011As medições de corrente e de tensão, em sistemas elétricos de potência, são processos
Wendhausen, Moacir
core  

Recent Advances in Hybrid, Plug‐In, Battery, and Fuel Cell EVs: Control Schemes, Modes, Converter Topologies, and Pros and Cons

open access: yesIET Electrical Systems in Transportation, Volume 2026, Issue 1, 2026.
Direct current (DC)–DC converters are the backbone of electric vehicle (EV) power trains, enabling efficient and bidirectional energy flow between the battery, high‐voltage (HV) DC link, and auxiliary rails under tight isolation, gain, ripple, and electromagnetic interference (EMI) constraints.
Abhilash Sakhare   +3 more
wiley   +1 more source

Design of a Rectangular Pickup Coil Fabricated on a PCB Using WBG Power Semiconductor in Discrete Package

open access: yesApplied Sciences, 2021
Power semiconductors based on wide bandgap (WBG) devices are capable of fast switching and have low on-resistance. Accordingly, a fast sensor with a higher bandwidth is required for circuit inspection based on switch current measurements.
Ui-Jin Kim
doaj   +1 more source

Equivalent Test Method for Fault Ride‐Through of Integrated Energy‐consuming MMC Modules

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes an equivalent assessment index covering the entire fault ride‐through process, taking the integrated energy‐consuming MMC valve as the research object, and solves the problem of the lack of assessment index for the fault ride‐through equivalent test.
Ying Li   +7 more
wiley   +1 more source

Current Measurement using Rogowski Coil [PDF]

open access: yes, 2015
U završnom radu definiran je pojam električne struje te su navedene specifične karateristike za struju.Obrađene su mjerne metode za mjerenje električne struje.
Mirt, Nikola
core   +1 more source

Non‐Contact Turn‐Off Time Measurement Method for IGBTs in the Half‐Bridge Submodule Configuration of MMC

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes a non‐contact method for measuring the turn‐off time of insulated‐gate bipolar transistor (IGBT) devices in modular multilevel converters (MMC) submodules, using the decay of load‐side common‐mode current. The technique leverages existing current‐sensing infrastructure and avoids intrusive modifications, enabling real‐time ...
Jiyun Liu   +7 more
wiley   +1 more source

Analysis of the Dynamic Properties of the Rogowski Coil to Improve the Accuracy in Power and Electromechanical Systems

open access: yesEnergies
This paper presents an analysis of the dynamic properties of the Rogowski coil, primarily by determining the dynamic errors for several selected test signals and the upper bound of the dynamic error for two quality criteria: the integral-square error and
Krzysztof Tomczyk   +2 more
doaj   +1 more source

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