Results 31 to 40 of about 36,815 (251)

Space charge dynamics in oil and thick pressboard combined system under polarity reversal voltage [PDF]

open access: yes, 2014
In this study, the space charge dynamics in an oil and oil impregnated pressboard combined insulation system are investigated by the means of pulsed electroacoustic (PEA) technique under voltage polarity reversal conditions. To be closer to the real case
Hao, Miao   +9 more
core   +1 more source

Comparative Analysis of Technical Standards for Offshore Wind Power via VSC-HVDC

open access: yesShanghai Jiaotong Daxue xuebao, 2022
This paper introduces the current situation of domestic and foreign offshore wind power grid-connected via voltage source converter based high voltage direct current(VSC-HVDC) transmission standards, and selects representative standards of offshore wind ...
YU Hao, ZHANG Zhemeng, PENG Sui, ZHANG Zhiqiang, REN Wanxin, LI Canbing
doaj   +1 more source

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

open access: yesHigh Voltage, 2020
European Union's Horizon 2020, Grant/Award Number: 691714 Abstract This review paper describes fault current interruption principles and various high‐voltage direct currrent (HVDC) circuit breaker technologies.
R. Smeets, N. Belda
semanticscholar   +1 more source

Voltage and Current Measuring Technologies for High Voltage Direct Current Supergrids: A Technology Review Identifying the Options for Protection, Fault Location and Automation Applications

open access: yesIEEE Access, 2020
After the occurrence of a DC-side feeder faults on HVDC transmission systems, protection and fault detection systems are anticipated to minimize their onerous effects, by initiating fault-clearing actions such as selective tripping of circuit breakers ...
D. Tzelepis   +13 more
semanticscholar   +1 more source

Laboratory Demonstration of a Multiterminal VSC-HVDC Power Grid [PDF]

open access: yes, 2017
This paper presents the design, development, con- trol and supervision of a hardware-based laboratory Multi- Terminal-Direct-Current (MTDC) test-bed. This work is a part of the TWENTIES (Transmission system operation with large penetration of Wind and ...
COLAS, Frédéric   +4 more
core   +1 more source

High-Voltage Direct Current (HVDC) Transmission: Reliability and applications

open access: yesWorld Journal of Advanced Research and Reviews, 2022
High-Voltage Direct Current (HVDC) transmission has emerged as a transformative technology for long-distance and high-power electrical transmission, addressing the limitations of conventional Alternating Current (AC) transmission systems. HVDC technology is characterized by reduced transmission losses, improved grid stability, and enhanced capability ...
openaire   +1 more source

Frequency Control of Power System with Solar and Wind Power Stations by Using Frequency Band Control and Deadband Control of HVDC Interconnection Line [PDF]

open access: yes, 2018
In recent years, environmental problems are becoming serious and renewable energy has attracted attention as their solutions. However, the electricity generation using the renewable energy has a demerit that the output becomes unstable because of ...
Taguchi, Tsukasa   +7 more
core   +1 more source

Minimum Frequency and Voltage Stability Constrained Unit Commitment for AC/DC Transmission Systems

open access: yesApplied Sciences, 2019
An increased use of the high-voltage direct current (HVDC) technologies can have important effects on frequency performance and voltage stability of the receiving-end grid during normal operation as well as during blocking failure.
Ningyu Zhang, Qian Zhou, Haoming Hu
doaj   +1 more source

Dynamic Modeling of HVDC for Power System Stability Assessment: A Review, Issues, and Recommendations

open access: yesEnergies, 2021
High-voltage direct current (HVDC) has received considerable attention due to several advantageous features such as minimum transmission losses, enhanced stability, and control operation.
Tarek Abedin   +7 more
doaj   +1 more source

Recent advances in High-Voltage direct-current power transmission systems

open access: yes, 2006
The ever increasing progress of high-voltage high-power fully-controlled semiconductor technology continues to have a significant impact on the development of advanced power electronic apparatus used to support optimised operations and efficient ...
Nikolas Flourentzou   +5 more
core   +1 more source

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