Results 61 to 70 of about 16,216,609 (215)

Live‐Line Work on High‐Voltage Transmission Overhead Lines: From FRP Flashover to Air‐Gap Breakdown Physics and Emerging Technologies

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper presents a comprehensive review of live‐line work on high‐voltage transmission overhead lines, with a focus on insulation performance, air‐gap breakdown and discharge physics under realistic operating conditions. This review primarily covers journal publications from approximately 2014 to 2026, with emphasis on recent developments ...
Mona Ghassemi, Masoud Farzaneh
wiley   +1 more source

Fault Ride-through Capability Enhancement of Voltage Source Converter-High Voltage Direct Current Systems with Bridge Type Fault Current Limiters

open access: yesEnergies, 2017
This paper proposes the use of bridge type fault current limiters (BFCLs) as a potential solution to reduce the impact of fault disturbance on voltage source converter-based high voltage DC (VSC-HVDC) systems.
Md Shafiul Alam   +1 more
doaj   +1 more source

Isolation and Protection of the Motor-Generator Pair System for Fault Ride-Through of Renewable Energy Generation Systems

open access: yesIEEE Access, 2020
Renewable energy units are required to have reliable fault ride-through capability to prevent large-scale disconnection of renewable energy plants due to grid faults.
Yujun Gu   +5 more
doaj   +1 more source

Fault ride‐through control based on voltage prioritization for grid‐forming converters

open access: yesIET Renewable Power Generation, 2023
This paper discusses that the existing grid codes on the fault ride‐through (FRT) operation have certain complications to be implemented in the grid‐forming (GFM) converters.
Saman Dadjo Tavakoli   +3 more
doaj   +1 more source

A Review of Transient Support and Security‐Stability Enhancement Control Strategies for Grid‐Forming Voltage Source Converter‐Based High Voltage Direct Current Transmission

open access: yesHigh Voltage, EarlyView.
ABSTRACT Amid the ongoing global energy transition, the short‐circuit ratios of AC power grids are continuously decreasing. Grid‐forming voltage source converter‐based high voltage direct current transmission (GFM VSC‐HVDC) systems have therefore come to the forefront of attention.
Cheng Peng   +7 more
wiley   +1 more source

A hybrid arm‐multiplexing MMC for DC fault ride‐through without blocking

open access: yesIET Renewable Power Generation, 2023
Abstract Considering both the DC fault ride‐through (FRT) and lightweight requirements of modular multilevel converter (MMC), this paper proposes a hybrid arm‐multiplexing modular multilevel converter (HAM‐MMC). The phase leg of the proposed MMC topology is divided into upper, middle, and lower arms, configured with full‐bridge ...
Yi Wang, Yuwei Li, Chen Wang, Jianye Tao
openaire   +2 more sources

Developments and Prospects of Voltage Source Converter‐High‐Voltage Direct Current Transmission Technology

open access: yesHigh Voltage, EarlyView.
ABSTRACT Voltage source converter‐high‐voltage direct current (VSC‐HVDC) transmission is a key technology for renewable‐energy integration, regional grid interconnection and passive‐network power supply. This review summarises the development history of VSC‐HVDC, the evolution of converter topologies, its technical advantages and representative ...
Licheng Li   +7 more
wiley   +1 more source

Fault ride-through of renewable energy conversion systems during voltage recovery

open access: yesJournal of Modern Power Systems and Clean Energy, 2016
Asymmetrical voltage swells during recovery of a short-circuit fault lead to fluctuations in the dc-link voltage of a renewable energy conversion system (RECS), and may induce reversed power flow and even trip the RECS. This paper studies characteristics
Ruiqi Li, Hua Geng, Geng Yang
doaj   +1 more source

“Women of the Happy Life”: Prostitution, Public Morality, and Venereal Disease in US‐Occupied Nicaragua, 1912–33

open access: yesGender &History, EarlyView.
ABSTRACT During the years of the US occupation (1912–33), Nicaragua's government legally regulated prostitution. Convinced of their objectives to protect society's moral and public health, politicians embarked on a long struggle to apprehend, quarantine, and segregate female prostitutes nationwide.
Eimeel Castillo
wiley   +1 more source

Coordinated DC Fault Ride‐Through Control for a Grid‐Forming Wind‐Storage System With VSC‐HVDC Integration Under Transmission Constraints

open access: yesEngineering Reports
Due to the complexity of wind farm environments and the particularity of DC systems, fault signals may be affected by numerous factors, which can compromise the accuracy of fault detection.
Lei Chen, Qi Han
doaj   +1 more source

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