Results 21 to 30 of about 1,696 (209)
International Journal of Electrical Power & Energy SystemsThe fast DC current recovery is widely adopted in the existing Voltage Dependent Current Order Limiter (VDCOL) for Line Commutated Converter-based High Voltage Direct Current (LCC-HVDC) systems to mitigate transient overvoltage in the sending-end grid ...
Bo Pang +6 more
doaj +3 more sources
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 +8 more
wiley +1 more source
A New Quantitative Analysis Method for Overvoltage in Sending End Electric Power System With UHVDC
IEEE Access, 2020 With the development of renewable electric power generation and ultra-high voltage direct current (UHVDC) transmission, the transient overvoltage in the sending end electric power system with UHVDC occurs, but it is lack of quantitative transient voltage
Ancheng Xue +8 more
doaj +1 more source
IET Generation, Transmission & Distribution, 2023 The commutation failure is the most prevalent fault in line‐commutated converter based high‐voltage direct current systems, which may result in transient overvoltage on the sending‐side system.
Zhe Zhang +4 more
doaj +1 more source
Research on Resonance Overvoltage of EHV Transmission Lines Caused by Lightning Strike
IEEE Access, 2021 This paper studies the mechanism and influencing factors of resonance overvoltage of EHV transmission lines caused by lightning. By analyzing the time domain steady state of the simplified resonance circuit, the physical mechanism of resonance is ...
Xiao Lei +5 more
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发电技术, 2022 Voltage source converter based high voltage direct current (VSC-HVDC) has a broad application prospect in the field of islanded renewable energy transmission, due to its advantages such as no commutation failure. When AC fault occurs in the AC power grid
YU Xiao, BU Guangquan, WANG Shanshan
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Energies, 2023 To address the problem of winding turn-to-turn breakdown faults in 35 kV dry-type transformers in wind farms under overvoltage conditions, this paper establishes a simulation model based on the structural dimensions and material parameters of the ...
Ziheng Pu +4 more
doaj +1 more source
电力工程技术, 2023 Aiming at the transient overvoltage problem of high proportion new energy multi direct current (DC) transmission system caused by DC blocking fault, the interaction mechanism between multiple DC lines is analyzed firstly and the multi-outfeed voltage ...
ZHANG Qirui +5 more
doaj +1 more source
Analysis and Estimation Method for the Impact of Different Renewable Energy Ratios on Transient Overvoltage under DC Faults [PDF]
Dianli jianshe[Objective] To address the ambiguous trends in transient overvoltage caused by unclear definitions of renewable energy ratios， this paper investigates how fluctuations in renewable generation and random unit commitment lead to varying impacts under ...
LIANG Chenguang, SHEN Xiaolin, YIN Chunya, LIU Wan, LI Xiaozhu, GAO Shang
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Research on over-voltage characteristics of ultra high-voltage direct current transmission system
Energy Reports, 2022 Load dumping overvoltage has a significant effect on insulation coordination of direct current (DC) transmission system. Based on the PSCAD/EMTDC electromagnetic transient simulation programs, this paper has built the electromagnetic transient ...
Yingjin Li +6 more
doaj +1 more source