Results 11 to 20 of about 32,313 (287)

Study on the Measurement of the On-Site Overvoltage and Internal Temperature Rise Simulation of the EMU Arrester

Applied Sciences, 2022
In order to analyze the explosion accidents of the CRH5 EMU roof arrester in recent years, an internal temperature measuring platform based on fluorescence fiber was established, and the temperature distribution characteristics under the continuous ...
Shenghui Wang, Qi Ou, Shengfeng Lei, Huaqi Liu, Shuaitao Mao, Qizhe Zhang, Jian Liu, Fangcheng Lv   +7 more
doaj   +1 more source

Empowering and conquering infirmity of visually impaired using AI‐technology equipped with object detection and real‐time voice feedback system in healthcare application

CAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract The Internet of Things is emerging as a crucial technology in aiding humans and making their lives easier. Among the human population, a large percentage of people suffer from disabilities resulting in challenges in everyday life particularly people with visual disabilities.
Hania Tarik, Shahzad Hassan, Rizwan Ali Naqvi, Saddaf Rubab, Usman Tariq, Monia Hamdi, Hela Elmannai, Ye Jin Kim, Jae‐Hyuk Cha   +8 more
wiley   +1 more source

CVT-Based Switching Overvoltage Measurement of UHV Converter Station under Complex Electromagnetic Environment

Zhongguo dianli, 2022
UHV converter station is prone to produce switching overvoltage during switching operation, However, due to its high voltage level, strong electromagnetic interference and other factors, there is still no effective means to measure the overvoltage ...
Rong WANG, Jiazhao SHI, Can GUO, Wei SHEN, Xikui MA   +4 more
doaj   +1 more source

Analysis on Influence Factors of Temporary Overvoltage of Load Rejection Fault of Offshore Wind Power Transmission System of Permanent Magnet Synchronous Generator

发电技术, 2022
In order to evaluate the temporary overvoltage level of the wind power transmission system based on permanent magnet synchronous generator (PMSG) in case of load rejection, it is necessary to clarify the temporary overvoltage characteristics and its ...
YANG Daye, XIANG Zutao, LUO Xuzhi, SONG Ruihua, CHEN Qiyu, SHEN Lin, WANG Xiaotong   +6 more
doaj   +1 more source

Maximum power injection acceptance in a residential area [PDF]

, 2010
The number of installed distributed generation (DG) in residential areas rapidly increases, specifically in the form of photovoltaics (PV), causing some undesired side effects such as voltage rise.
Debruyne, Colin, Desmet, Jan, Vanalme, Greet, Vanalme, Johan, Vandevelde, Lieven, Verhelst, Bart   +5 more
core   +2 more sources

Impact of High Switching Speed and High Switching Frequency of Wide-Bandgap Motor Drives on Electric Machines

IEEE Access, 2021
The emergence of fast-switching wide-bandgap (GaN, SiC) power electronics devices has enabled motor drive systems to achieve high efficiency, power density, control bandwidth and high-level of integration.
Yipu Xu, Xibo Yuan, Fei Ye, Zihao Wang, Yonglei Zhang, Mohamed Diab, Wenzhi Zhou   +6 more
doaj   +1 more source

Insulator fault feature extraction system of substation equipment based on machine vision

IET Networks, EarlyView., 2022
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang, Qiaoqun Xia, Lijun Ma, Xin Xu, Zhipeng Shao   +4 more
wiley   +1 more source

Effects of cycling on lithium-ion battery hysteresis and overvoltage [PDF]

, 2019
Currently, lithium-ion batteries are widely used as energy storage systems for mobile applications. However, a better understanding of their nature is still required to improve battery management systems (BMS).
Cuadras Tomàs, Àngel, Ovejas Benedicto, Victòria Júlia   +1 more
core   +2 more sources

Research on Overvoltage Suppression by Blocking Diode and DC Circuit Breaker in LCC-VSC Hybrid HVDC System

IEEE Access, 2021
In this study, a LCC-VSC hybrid HVDC transmission system was taken as an example. The valve and neutral overvoltage of the hybrid HVDC system were simulated and then calculated at the VSC converter station by installing a blocking diode and a DC circuit ...
Wang Dongju, Zhou Hao
doaj   +1 more source

Introducing small storage capacity at residential PV installations to prevent overvoltages [PDF]

, 2011
Low voltage distribution feeders are designed for unidirectional energy supply from transformer to consumer. However, the implementation of small-scale PV production units on local utilities may result in bidirectional energy flows.
Cappelle, Jan, Debruyne, Colin, Desmet, Jan, Van Maerhem, Thomas, Vanalme, Johan, Verhelst, Bart, Vispoel, Stijn   +6 more
core   +1 more source