Results 61 to 70 of about 232 (148)

Modeling and Prediction Analysis of Magnetic Field in DC Yard of VSC-HVDC Station under Short Circuit Condition

Zhongguo dianli, 2021
For the voltage source converter based high voltage direct current (VSC-HVDC) station equipped with hybrid DC breakers, the DC circuit breaker has fast speed for breaking fault current and short time for internal commutation.
Meng BAO, Hong SHEN, Jialiang LI, Yan SHI, Lei QI, Qian WANG   +5 more
doaj   +1 more source

Coordinated control of DC circuit breakers in multilink HVDC grid

CSEE Journal of Power and Energy Systems, 2021
High voltage DC grid is developing towards more terminals and larger transmission capacity, thus the requirements for DC circuit breakers (DCCB) will rise. The conventional methods only use the faulty line DCCB to withstand the fault stress, while this paper presents a coordination method of multiple DCCBs to protect the system.
Xibei Zhao, Jianzhong Xu, Gen Li, Jinsha Yuan, Jun Liang   +4 more
openaire   +2 more sources

HVDC Circuit Breaker Development and Applications in VSC-HVDC Transmission Project

IOP Conference Series: Earth and Environmental Science, 2020
Abstract High voltage direct current (HVDC), especially voltage source based HVDC (VSC-HVDC), transmission technology has been expanding in recent decades. HVDC circuit breaker therefore attracts significant interest due to its abilities of current interruption and fault isolation.
Yuefeng Yang, Menggan Ren, Junzheng Cao, Wang Liu, Xiong Zhan, Caiping Zhao   +5 more
openaire   +1 more source

Parameterization of Circuit Breakers for HVDC Transmission Line Between Egypt and the Kingdom of Saudi Arabia Toward Restriking Voltage

IEEE Access
The high voltage direct current (HVDC) transmission lines represent the prospective way for long-distance transmission between countries, remote areas, and offshore wind farms to decrease power loss.
Tamer Eliyan, Mahmoud Elsisi, Mamdouh L. Alghaythi, Meshari S. Alshammari, Fady Wadie   +4 more
doaj   +1 more source

Appropriate Protection Scheme for DC Grid Based on the Half Bridge Modular Multilevel Converter System

Energies, 2019
The half bridge (HB) modular multilevel converter (MMC) technology is considered a breakthrough to mitigate the shortcomings of the conventional voltage source converter (VSC) in high-voltage direct-current (HVDC) grid application.
Ho-Yun Lee, Mansoor Asif, Kyu-Hoon Park, Hyun-Min Mun, Bang-Wook Lee   +4 more
doaj   +1 more source

Closing performance of the Thomson-coil actuator for a 110 kV FMS

The Journal of Engineering, 2019
In the 500 kV hybrid high-voltage direct current (HVDC) circuit breaker, there are five 110 kV fast mechanical switches (FMSs) in the nominal current path.
Yannan Zhou, Yulong Huang, Weijie Wen, Keke Sun, Bo Men, Jibin Zhu   +5 more
doaj   +1 more source

A hybrid multi-port HVDC circuit breaker that improves interruption and reset time through shared energy dissipation and fault current regeneration

Results in Engineering
This paper proposes a Hybrid Multi-Port DC Circuit Breaker (HMPDCCB) design that addresses the limitations of existing hybrid DC circuit breakers (HDCCBs), such as high cost, complexity, and slow response to high fault current and voltage demands.
Qumrish Arooj, Imtiaz Ahmad Taj
doaj   +1 more source

Development in HVDC Circuit Breaker - A Review

Journal of Electrical Systems
The increasing adoption of High Voltage Direct Current (HVDC) systems for efficient long-distance power transmission and renewable energy integration necessitates advanced protection mechanisms to ensure system stability and reliability. Among these, HVDC circuit breakers play a pivotal role in interrupting fault currents and safeguarding HVDC networks.
openaire   +1 more source

Comparison and analysis of the fault arc characteristics of flexible DC transmission lines

The Journal of Engineering, 2019
VSC-HVDC grid is one of the important development directions of the smart grid in the future. The arc characteristics of transient fault on the transmission line are the theoretical basis for determining reclosing time and reclosing strategy of DC ...
Botong Li, Hanqing Cui, Yichao Liu, Bin Li   +3 more
doaj   +1 more source

Novel fault current-limiting scheme for MMC-based flexible HVDC system

The Journal of Engineering, 2019
Currently, the flexible direct current transmission technique becomes a research focus around the world, and be applied in power engineering projects gradually.
Yueyang Ma, Guibin Zou, Shenglan Song, Jianbao Guo, Zhanjun Gao   +4 more
doaj   +1 more source