Results 51 to 60 of about 2,619 (224)
High frequency IGCT operation for DC transformer
, 2022 In spite of the dominance of ac technology for the vast majority of power transmission and distribution since the late 19th century, the past decades have seen an increase in use of dc electrical power. In particular, this has been the case both in high voltage transmission, and in low voltage islanded dc grids such as shipboard power distributions ...
openaire +1 more source
Cryogenic DC Circuit Breaker Based on High‐Power Press‐Pack IGBT
IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.This paper presents the performance of cryogenically compatible 3.3 kV/1.5 kA PP‐IGBTs as the main circuit breaker in a hybrid circuit breaker. The 3.3 kV/1.5 kA press‐pack IGBT can interrupt currents exceeding 5.1 kA when immersed in a liquid nitrogen bath. PP‐IGBTs are promising candidates for high‐power circuit breakers in cryogenically cooled power
Zhongying Wang +9 more
wiley +1 more source
Ageing Behaviours and Mechanisms of SiC MOSFET and Si IGBT in DC Solid‐State Circuit Breaker
IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.We propose that this distributed thermal profile in IGBT mitigates localised stress. Conversely, the high concentration of thermal stress in SiC MOSFET's gate region leads to its severe ageing. ABSTRACT The rapid development of DC power systems in applications such as electric aircraft and microgrids has highlighted the need for high‐performance DC ...
Jiajia Song, Bo Zhang, Yanfeng Song
wiley +1 more source
Hybrid IGBT/IGCT‐Based DC‐Hub for Interconnection of VSC/LCC Future DC Networks
IET Power Electronics, Volume 18, Issue 1, January/December 2025.ABSTRACT The interest in interconnecting multiple DC grids‐ medium‐voltage direct current/high‐voltage direct current (MVDC/HVDC)‐ across the globe has grown significantly in recent years. This interest is primarily driven by the benefits of increased reliability and cost efficiency in power transmission systems, particularly with the growing ...
Mohamed Mansour +6 more
wiley +1 more source
An analytical modeling and estimating losses of power semiconductors in a three-phase dual active bridge converter for MVDC grids [PDF]
, 2016 Due to the increasing installation of renewable and decentralized power sources, Medium-voltage dc (MVDC) grids has been considered for an alternative application to medium-voltage ac (MVAC) application.
Lee, Youngsil +3 more
core
Application of a IGCT for Pulsed Power
Kongzhi Yu Xinxi Jishu, 2012 It introduced a power semiconductor (IGCT) applied in pulsed power, including the device and the structure. IGCT is suitable for pulsed power applications owing to high current and high di/dt capability.
YAN Ji +6 more
doaj
Psychological treatment of social anxiety disorder: a meta-analysis. [PDF]
, 2009 Background Older meta-analyses of the effects of psychological treatments of social anxiety disorder have found that these treatments have moderate to large effects. However, these earlier meta-analyses also included non-randomized studies, and there are
A. van Straten +11 more
core +3 more sources
International Journal of Energy Research, Volume 2025, Issue 1, 2025.The voltage source converter‐based high voltage direct current transmission (VSC‐HVDC) is considered the most appropriate option to harness the maximum potential of renewable energy, particularly offshore wind. With improved reliability and functionality of the network, reduced conversion losses, and reduced cost, the VSC‐based multiterminal direct ...
Muhammad Ahmad +5 more
wiley +1 more source
High Power Semiconductor Devices and Solid State Switches for Pulsed Discharge Applications [PDF]
, 2006 Based on long term experience, collected mainly with military applications like Rail Guns and Active Armour, a range of optimized semiconductor devices for pulsed applications was developed by ABB Switzerland Ltd and described in this presentation.
Fleischmann, W., Welleman, A.
core
Operation and control of a current source converter series tapping of an LCC-HVDC link for integration of offshore wind power plants [PDF]
, 2016 This work presents a series tapping station for integrating Offshore Wind Power Plants (OWPP) into a (Line Commutated Converter High Voltage Direct Current) LCC-HVDC transmission system.
Galceran Arellano, Samuel +3 more
core +2 more sources