Results 41 to 50 of about 46,909 (228)

A current source inverter with series connected AC capacitors for photovoltaic application with grid fault ride through capability [PDF]

open access: yes, 2009
The current source inverter (CSI) is preferred to interface a renewable source such photovoltaics (PV) to the AC power grid because it can provide smooth current source in the DC side, which fits to the PV behaviour and also steps-up the voltage from DC ...
Klumpner, Christian   +2 more
core   +1 more source

Advanced Control Strategy of DFIG Wind Turbines for Power System Fault Ride Through [PDF]

open access: yes, 2012
This paper presents an advanced control strategy for the rotor and grid side converters of the doubly fed induction generator (DFIG) based wind turbine (WT) to enhance the low-voltage ride-through (LVRT) capability according to the grid connection ...
Dong, Zhao Yang   +4 more
core   +2 more sources

Modified half-bridge modular multilevel converter for HVDC systems with DC fault ride-through capability [PDF]

open access: yes, 2014
One of the main challenges of voltage source converter based HVDC systems is DC faults. In this paper, two different modified half-bridge modular multilevel converter topologies are proposed.
Aboushady, A.A., Ahmed, K.H.
core   +2 more sources

Hierarchical control-based fault ride-through of VSC-HVDC considering impacts of renewable energy

open access: yesInternational Journal of Electrical Power & Energy Systems
When 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
doaj   +1 more source

Grid integration of offshore wind farm using multi-terminal DC transmission system (MTDC) [PDF]

open access: yes, 2010
This paper discusses the control flexibility and fault ride- through capability of the bi-polar multi-terminal DC transmission system based on voltage source converters used for integration of large-scale offshore wind farms.
Adam, Grain Philip   +3 more
core   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Distributed PLL-based control of offshore wind turbines connected with diode-rectifier based HVDC systems [PDF]

open access: yes, 2017
A distributed PLL-based frequency control is proposed in this paper for offshore wind turbine converters connected with diode-rectifier based high-voltage-direct-current (HVDC) systems. The proposed control enables a large number of wind turbines to work
Li, Rui, Xu, Lie, Yu, Lujie
core   +1 more source

Connexin43 Deficiency Leads to Ventricular Arrhythmias by Reprogramming Proline Metabolism

open access: yesAdvanced Science, EarlyView.
The study demonstrated that connexin43 (Cx43) knockout caused arrhythmic phenotype and decreased proline content in vitro and in vivo. Mechanistically, Cx43 interacts with the amino acid transporter SNAT2 (sodium‐dependent neutral amino acid transporter), and its deficiency disrupts proline transport and metabolism.
Hangying Ying   +8 more
wiley   +1 more source

A grid side fault ride-through control for renewable energy connected MMC-HVDC

open access: yes电力工程技术
Renewable energy connected modular multilevel converter high-voltage direct-current (MMC-HVDC) system should have the capability of fault ride-through when the AC grid fails. However, it is difficult to quickly and reliably achieve fault ride-through via
Qiang HUANG   +5 more
doaj   +1 more source

Analysis of hybrid energy storage systems with DC link fault ride-through capability [PDF]

open access: yes2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016
This work has been partially supported by the Spanish Government, Innovation Development and Research Office (MEC), under research grant ENE2013-44245-R, Project “Microholo”, and by the European Union through ERFD Structural Funds (FEDER). This work has been partially supported by the government of Principality of Asturias, Foundation for the Promotion
Georgious Zaher Georgious, Ramy   +3 more
openaire   +3 more sources

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