Results 11 to 20 of about 652 (101)

A Novel Phase‐Shifted Modulation for Balancing Current Stress During Startup of High‐Power Full‐Bridge DC/DC Converters

open access: yesThe Journal of Engineering
Traditional duty‐cycle or phase‐shift modulation is inadequate for achieving a balanced current‐stress distribution during the startup of full‐bridge DC/DC converters. As converter power capacity increases, these limitations not only restrict the startup
Yiqing Ma   +4 more
doaj   +2 more sources

Neural network based robust optimal energy control of pulse width modulation‐inverter fed motor driving pump

open access: yesIET Electric Power Applications, Volume 17, Issue 10, Page 1334-1346, October 2023., 2023
This paper revisits loss model control (LMC) of the 3‐phase induction motor (IM) and presents a robust LMC algorithm for medium‐sized pump drives. Compared with other power loss reduction algorithms for IM, the presented one has the advantages of fast and smooth flux adaptation, high accuracy, and versatile implementation.
Osama S. Ebrahim   +4 more
wiley   +1 more source

A novel bidirectional nonuniform hybrid circuit breaker considering different direction protection requirements

open access: yesIET Power Electronics, Volume 15, Issue 14, Page 1572-1582, 4 November 2022., 2022
Abstract Hybrid switching technologies such as zero voltage switching (ZVS) and zero current switching (ZCS) are widely accepted to protect DC power systems from different kinds of faults. However, in some cases such as the protection of DC generators in the electrical distribution system of modern ships, different protection strategies are needed for ...
Zhuangxian Jiang   +5 more
wiley   +1 more source

Selection of an IGCT for multilevel converters dedicated to high‐voltage direct current grid connection of offshore wind‐farms

open access: yesIET Power Electronics, Volume 14, Issue 10, Page 1779-1791, 5 August 2021., 2021
Abstract Grid connection of remote offshore wind‐parks uses high‐voltage direct current technology and in order to reduce costs and losses and maximise profitability, semiconductor power losses must be minimised. To properly choose the semiconductors, it is necessary to estimate their losses for a large number of operating conditions.
Davin Guedon   +5 more
wiley   +1 more source

A new DC-DC converter linking LCC-HVDC transmission networks [PDF]

open access: yes, 2021
Transferring bulk power via high voltage direct current (HVDC) transmission is dominated by line commutated converters (LCC). This is due to the robustness and higher ratings of the thyristors as well as the higher converter efficiency.
Ahmed, Khaled   +4 more
core   +2 more sources

Design criteria of solid‐state circuit breaker for low‐voltage microgrids

open access: yesIET Power Electronics, Volume 14, Issue 7, Page 1284-1299, 20 May 2021., 2021
Abstract Solid‐state circuit breakers (SSCB) show great promise to become the key element in the protection of low‐voltage direct current microgrids. SSCBs operate in the microsecond range and employ semi‐conductor devices that have strict safe operation area limits.
Pavel Purgat   +4 more
wiley   +1 more source

High-power active devices [PDF]

open access: yes, 2006
Very high-power (HP) electronics represents a small part of the electronics market. In semiconductor terms, HP represents a world device market of 600 million euros out of a total 200 billion euros for all semiconductors—a mere 0.3 per cent. At the multi-
Carroll, E
core   +1 more source

High‐voltage direct current fault current interruption: A technology review

open access: yesHigh Voltage, Volume 6, Issue 2, Page 171-192, April 2021., 2021
Abstract This review paper describes fault current interruption principles and various high‐voltage direct currrent (HVDC) circuit breaker technologies. First, fundamentals of HVDC fault current interruption and a generic set of requirements of HVDC circuit breakers are presented.
Rene P. P. Smeets, Nadew A. Belda
wiley   +1 more source

4.5 kV Bi-mode Gate Commutated Thyristor design with High Power Technology and shallow diode-anode [PDF]

open access: yes, 2016
The Bi-mode Gate Commutated Thyristor (BGCT) is a reverse conducting Gate Commutated Thyristor (GCT) where the diode regions are intertwined with GCT parts.
,   +8 more
core   +1 more source

New Bi-Mode Gate-Commutated Thyristor Design Concept for High-Current Controllability and Low ON-State Voltage Drop [PDF]

open access: yes, 2016
© 2016 IEEE. A new design approach for bi-mode gatecommutated thyristors (BGCTs) is proposed for high-current controllability and low ON-state voltage drop. Using a complex multi-cell mixed-mode simulation model which can capture the maximum controllable
,   +9 more
core   +2 more sources

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