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

