Results 101 to 110 of about 3,375 (209)

An Initial Topology of Multi-terminal HVDC Transmission System in Europe:A Case Study of the North-Sea Region [PDF]

, 2016
In this paper, technical challenges for realizing offshore multi-terminal HVDC (MTDC) transmission system in Europe is evaluated. An offshore MTDC topology is projected by interconnecting point-to-point HVDC links with the same voltage level and ...
Bak, Claus Leth, Bregnhøj, Tom Chresten, Irnawan, Roni, Silva, Filipe Miguel Faria da   +3 more
core   +2 more sources

Recovery Control Strategies and Overcurrent Suppression for Bipolar Hybrid Cascaded MTDC Systems Under DC Faults

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
The paper explains the issue of managing and recovering DC faults in bipolar hybrid cascaded MTDC systems, the combination of LCCs to achieve power density and MMCs to provide flexible control in long‐distance power transmission, and the integration of large‐scale renewable energy sources. The paper examines fault behaviours in the LCC section, LCC‐MMC
Muhammad Asim Mond, Zhou Li, Wenwen Mei
wiley   +1 more source

Review of recent trends of advancements in multilevel inverter topologies with reduced power switches and control techniques

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
Some of the topologies with a fewer number of power switches are reviewed and scrutinized. An extensive analysis of the topologies, control strategy and applications are presented here, suggesting suitable multilevel inverter solutions to the known industrial application or new research.
Anurag Choudhary, Rohit Kumar, Shimi Sudha Letha, Farhad Ilahi Bakhsh, Arshdeep Singh, Mohammad Junaid Khan   +5 more
wiley   +1 more source

Active control of DC fault currents in DC solid-state transformers during ride-through operation of multi-terminal HVDC systems [PDF]

, 2016
When a pole-to-pole dc fault occurs in a multi-terminal HVDC system, it is desirable that the stations and dc solid-state transformers on healthy cables continue contributing to power transfer, rather than blocking.
Li, Rui, Williams, Barry, Xu, Lie, Yao, Liangzhong   +3 more
core   +1 more source

A transient and non-unit-based protection technique for DC grids based on the rate-of-change (R-o-C) of the fault induced travelling wave components [PDF]

, 2019
This paper presents a transient and non-unit-based protection scheme for consideration in DC grids of the future. The technique utilises the rate-of-change (R-o-C) of the associated travelling wave components following the occurrence of a fault to ...
Azizi, Barker, Chamia, Christopoulos, Crossley, Davidson, Dong, Dong, Dong, Ha, Hao, Hertem, Ikhide, Jiang, Johns, Liu, Liu, Naidoo, Saleh, Shehab-Eldin, Sneath, Wang, Xiaolei, Yan, Ying   +24 more
core   +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

A hybrid modular multilevel converter with novel three-level cells for DC fault blocking capability [PDF]

, 2015
A novel hybrid, modular multilevel converter is presented that utilizes a combination of half-bridge and novel three-level cells where the three-level cells utilize a clamp circuit which, under dc side faults, is capable of blocking fault current thereby
Fletcher, John E., Holliday, Derrick, Li, Rui, Williams, Barry W., Xu, Lie   +4 more
core   +1 more source

Coordinated operation and control of VSC based multiterminal high voltage DC transmission systems [PDF]

, 2015
This paper deals with a multiterminal voltage source converter (VSC)-based high voltage dc transmission system (M-HVDC) connecting offshore wind farms to onshore ac grids. Three M-HVDC configurations studied, each with different control strategies.
Cecati, Carlo, Dianguo, Xu, Raza, Ali, Williams, B. W., Xunwen, Su, Yuchao, Liu   +5 more
core   +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

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