Results 61 to 70 of about 146,966 (343)

New Reactive Power Compensation Strategies for Railway Infrastructure Capacity Increasing

open access: yesEnergies, 2020
In AC railway electrification systems, the impact of reactive power flow in the feeding voltage magnitude is one aspect contributing to the quality of supply degradation.
Vítor A. Morais   +3 more
doaj   +1 more source

A hybrid fuzzy sliding-mode control for a three-phase shunt active power filter [PDF]

open access: yes, 2017
This document is the Accepted Manuscript version of the following article: Mohamed Abdeldjabbar Kouadria, Tayeb Allaoui, and Mouloud Denai, ‘A hybrid fuzzy sliding-mode control for a three-phase shunt active power filter’, Energy Systems, Vol. 8 (2): 297-
B Singh   +16 more
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Coordinated Reactive Power Control with a Variable Shunt Reactor and an Inverter-Based Wind Power Plant

open access: yesEnergies, 2022
Underground or submarine cables have a higher capacitance component than overhead lines, and they inject a large amount of capacitive reactive power into the system.
Seung-Ho Song, Soo-Bin Kim
doaj   +1 more source

Analysis of electricity quality parameters within installing reactive power compensators [PDF]

open access: yes, 2018
Збільшення кількості електронних пристроїв, під’єднаних до електромереж змінного струму, збільшує частку перехідних процесів в мережі та обумовлює динамічний характер, спожитої від мережі енергії.
Вербицький, Євген Володимирович   +1 more
core   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Дискретное управление конденсаторным компенсатором реактивной мощности в пусковых режимах мощных асинхронных двигателей [PDF]

open access: yes, 2013
The expediency consideration capacitor bank reactive power compensation, consisting of several sections, switched on to the network- phase thyristor as a digital automatic control system of reactive power. A comparison of standard linear impulse control
Муха, Николай Иосифович   +1 more
core  

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Voltage and reactive power coordinated control strategy for flexible on-load tap changer

open access: yes电力工程技术
As the increasing proportion of renewable energy and power electronic devices in the power grid, voltage fluctuations are becoming frequent. In response to the current voltage regulation and reactive power compensation requirements of the distribution ...
LIU Shui   +4 more
doaj   +1 more source

Повышение энергетических показателей многодвигательных асинхронных электроприводов [PDF]

open access: yes, 2013
A method is suggested for controlling reactive power compensation to improve the energy performance of multi-motor asynchronous electric pumping stations, consumed by a total compensation of reactive power from the network.
Петросян, Александр Михайлович   +1 more
core  

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