Results 51 to 60 of about 3,225 (199)
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
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
A novel thyristor‐based hybrid DC circuit breaker with short arcing capability
High Voltage, Volume 9, Issue 6, Page 1288-1301, December 2024.Abstract Multi‐terminal flexible high‐voltage direct current (HVDC) transmission and DC grid technology are developing rapidly. The hybrid DC circuit breaker (HCB) has broad application prospects in the field of HVDC transmission and DC power grid. Nevertheless, existing HCBs have one or more following blemishes: arc suppression scheme of mechanical ...
Guanlong Jia +4 more
wiley +1 more source
Nikita Hruşov Döneminde SSCB ve Afrika Arasındaki İlişkiler
Ankara Üniversitesi SBF Dergisi, 2020 Hruşov yönetimindeki Sovyet Sosyalist Cumhuriyet Birliği, geçmiş liderlerle kıyasla Afrika siyasetinde değişikliğe gitmiş ve dolayısıyla olağandışı bir durum yaşanmıştır. Kıtanın özellikleri ve uluslararası konjonktürdeki değişiklikler, Moskova’nın bu olağandışı tutumunu ise olağan kılmıştır.
openaire +4 more sources
Protection system considerations for DC distributed electrical propulsion systems [PDF]
, 2015 Distributed electrical propulsion for aircraft, also known as turbo-electric distributed propulsion (TeDP), will require a complex electrical power system which can deliver power to multiple propulsor motors from gas turbine driven generators.
Armstrong, M. +6 more
core +1 more source
Hybrid cord blood banking in a private‐public‐partnership: Women's perspectives
Transfusion, Volume 64, Issue 7, Page 1270-1278, July 2024.Abstract Background The increasing demand for umbilical cord blood (UCB) used in stem cell transplantation led to the establishment of cord blood (CB) banks worldwide. These include public foreign donor banks and private family‐directed donor banks. Recently, our department has introduced a third banking model within a private‐public‐partnership.
Jessica Laue +2 more
wiley +1 more source
Investigation into the design of ultra-wideband (UWB) and multi-band antennas [PDF]
, 2006 University of Technology, Sydney. Faculty of Engineering.The rapid development of high speed wireless communications as well as other applications such as microwave imaging place extraordinary demands on spectrums for which ultra-wideband (UWB) and multi-
Qiu, X
core
Research of simulation and experiment on arc characteristics of gas mechanical switch
High Voltage, Volume 9, Issue 3, Page 626-635, June 2024.Abstract An arc is the high‐temperature discharge plasma produced in the opening process of mechanical switches, which directly affects the breaking capability of a hybrid DC circuit breaker. According to the physical mechanism of an electric arc, the construction of an arc model for simulation analysis is an important technical means in the electrical
Cheng Jiang +7 more
wiley +1 more source
A Multi-Objective Planning Framework for Optimal Integration of Distributed Generations [PDF]
, 2013 This paper presents an evolutionary algorithm for analyzing the best mix of distributed generations (DG) in a distribution network. The multi-objective optimization aims at minimizing the total cost of real power generation, line losses and CO2 emissions,
Howe, Joe +2 more
core +1 more source
Diverse branch feature refinement network for efficient multi‐scale super‐resolution
IET Image Processing, Volume 18, Issue 6, Page 1475-1490, 11 May 2024.By decoupling the training process and inference process based on the idea of structural re‐parameterization, multi‐branch topology is adopted to enrich multi‐scale learning and merge branches to achieve efficient inference with equivalent effects. Abstract Despite the existence of various super‐resolution (SR) methods, most of them focus on designing ...
Dacheng Zhang +3 more
wiley +1 more source