Results 21 to 30 of about 2,538,991 (267)

Influence of Continuous Provision of Synthetic Inertia on the Mechanical Loads of a Wind Turbine

open access: yesEnergies, 2021
In many electrical grids, the share of renewable energy generation increases. As these generators are typically connected to the grid via inverters, the level of grid inertia decreases.
Arne Gloe   +4 more
doaj   +1 more source

Broadband Cooperative Spectrum Sensing Based on Distributed Modulated Wideband Converter

open access: yesSensors, 2016
The modulated wideband converter (MWC) is a kind of sub-Nyquist sampling system which is developed from compressed sensing theory. It accomplishes highly accurate broadband sparse signal recovery by multichannel sub-Nyquist sampling sequences.
Ziyong Xu, Zhi Li, Jian Li
doaj   +1 more source

VSC-HVDC for Frequency Support (a review) [PDF]

open access: yes13th IET International Conference on AC and DC Power Transmission (ACDC 2017), 2017
To reduce CO2 emissions produced by electricity generation, conventional fossil fuel power plants are being decommissioned. Renewable energy sources (RES) and interconnectors are replacing these old power plants but have different operating characteristics.
Fradley, John   +2 more
openaire   +1 more source

A Grouping-Based Frequency Support Scheme for Wind Farm Under Cyber Uncertainty

open access: yesIEEE Access, 2020
The injection of a significant amount of wind power tends to increase the difficulty of the grid frequency control. Therefore, wind farm (WF) has to have the ability to participate in system frequency support.
Yangyang Liu   +3 more
doaj   +1 more source

Optimal Frequency Support of Variable-Speed Hydropower Plants at Telemark and Vestfold, Norway: Future Scenarios of Nordic Power System

open access: yesEnergies, 2020
The integration of renewable resources is quickly growing in the Nordic power system (NPS), and it has led to increasing challenges for the operation and control of the NPS.
Martha N. Acosta   +4 more
doaj   +1 more source

Efficient Model for Accurate Assessment of Frequency Support by Large Populations of Plug-in Electric Vehicles

open access: yesInventions, 2021
In recent years, plug-in electric vehicles (PEVs) have gained immense popularity and are on a trajectory of constant growth. As a result, power systems are confronted with new issues and challenges, threatening their safety and reliability.
Michail Dakanalis, Fotios D. Kanellos
doaj   +1 more source

Kinetic Energy Recovery of a Wind Energy Doubly-Fed Induction Generator for Grid Frequency Support

open access: yesEngineering Proceedings, 2023
Synchronous generators provide an inherent inertial response to frequency deviations because of their huge revolving mass that is electro-mechanically tied to the electrical network.
Aksher Bhowon   +2 more
doaj   +1 more source

Frequency Modulation Control of Grid-Forming Converter Based on LADRC-MI

open access: yesEnergies
The increasing proportion of new energy in the power system leads to a decrease in system inertia and weakens the frequency stability of the system. The use of grid-forming (GFM) control for inverters is an effective method to improve frequency stability
Zejian Liu   +4 more
doaj   +1 more source

Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm system

open access: yesFrontiers in Energy Research
The large-scale offshore wind power integrated into the onshore power grid through voltage source converter-based high voltage direct current (VSC-HVDC) system is unable to provide inertia response and frequency support to the onshore power grid.
He Li, Yuekai Li, Yao Meng, Kefei Yan
doaj   +1 more source

The permanently rotating wind turbines: a new strategy for reliable power system frequency support under low and no wind conditions

open access: yesFrontiers in Energy Research, 2023
The problem of frequency stability becomes more concerning as the presence of converter-interfaced units increases and conventional generators are suppressed.
Kristina Džodić, Željko Đurišić
doaj   +1 more source

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