Results 11 to 20 of about 16,216,609 (215)
Energies, 2022 In the event of a DC side fault in modular multilevel converters (MMCs), the fault current contributions are initially made by submodule (SM) capacitor discharge, which occurs before the fault is detected, followed by the AC side contribution to the DC ...
Munif Nazmus Sakib +2 more
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Sensors, 2023 In a system where wind farms are connected to the grid via a bipolar flexible DC transmission, the occurrence of a short-time fault at one of the poles results in the active power emitted by the wind farm being transmitted through the non-faulty pole ...
Huiying Zhou, Siyang Ge, Liang Qin
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A DC Short-Circuit Fault Ride Through Strategy of MMC-HVDC Based on the Cascaded Star Converter
Energies, 2018 A modular multilevel converter based high voltage direct current (MMC-HVDC) with DC fault self-clearing is adopted to deal with the DC short-circuit fault.
Yingjie Wang +4 more
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New Sub-Module with Reverse Blocking IGBT for DC Fault Ride-Through in MMC-HVDC System
Energies, 2021 When integrating multi-grid renewable energy systems, modular multi-level converters (MMCs) are promising for high-voltage DC (HVDC) transmission. Because of the characteristics of the system, however, it is more difficult to prevent a fault at the DC ...
Ui-Jin Kim, Seok-Gyu Oh
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Analysis of hybrid energy storage systems with DC link fault ride-through capability [PDF]
2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016 In this work, a Fault Ride-Through control scheme for a non-isolated power topology for Hybrid Energy Storage Systems in a DC microgrid is presented. The Hybrid System is created from a Lithium-Ion Battery and a Supercapacitor Module coordinated to achieve a high-energy and high-power storage system; it is connected to a DC link to interface to the ...
Georgious Zaher Georgious, Ramy +3 more
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Hierarchical control-based fault ride-through of VSC-HVDC considering impacts of renewable energy
International Journal of Electrical Power & Energy SystemsWhen a short-circuit fault occurs at the receiving-end grid, the unbalanced power in voltage source converter based high voltage direct current (VSC-HVDC) should be consumed to prevent excessive DC voltage rise, thereby enabling fault ride-through ...
Jinxin Ouyang, Fan Mo, Jiyu Chen
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ElectricityTo address the critical issue of low reliability caused by fault impacts in large-scale wind farms transmitting power over long distances via flexible DC transmission systems, this study proposes a collaborative solution.
Hao Wang, Wenyue Zhou, Yiping Luo
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Fault ride-through enhancement of PMSG wind turbines with DC microgrids using resistive-type SFCL [PDF]
, 2018 Integrating permanent magnet synchronous generator (PMSG) wind turbines with DC microgrids have attracted a great attention due to the inherent merits of DC systems. However, under the fault conditions, the excessive energy during fault will be reflected
Yuan, Weijia +2 more
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Distributed control of a fault tolerant modular multilevel inverter for direct-drive wind turbine grid interfacing [PDF]
, 2013 Modular generator and converter topologies are being pursued for large offshore wind turbines to achieve fault tolerance and high reliability. A centralized controller presents a single critical point of failure which has prevented a truly modular and ...
Parker, Max, Ran, Li, Finney, Stephen
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A Novel Control Strategy for AC Fault Ride Through in Multi-terminal DC System
发电技术, 2022 This paper proposed a novel control strategy-coordinated DC voltage control (DCVC)-to enhance the AC fault ride through capability of multi-terminal high voltage direct current (HVDC) system.
YANG Zhou +3 more
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