Results 31 to 40 of about 11,992,356 (248)
Broadband Cooperative Spectrum Sensing Based on Distributed Modulated Wideband Converter
Sensors, 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
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A Grouping-Based Frequency Support Scheme for Wind Farm Under Cyber Uncertainty
IEEE 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
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An optical fibre-based frequency dissemination network for Australia
, 2011 An optical-fibre network is being planned for distribution of optical and microwave reference frequencies in Australia. This network would connect a number of research facilities and the National Measurement Institute (NMI), allowing long-range ...
Luiten, A. +9 more
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Energies, 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
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Frequency Modulation Control of Grid-Forming Converter Based on LADRC-MI
EnergiesThe 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
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Current limitations of cryogenic microwave oscillator frequency stability
, 2014 Technical paperCryogenic microwave oscillators built upon sapphire loaded cavity resonators exhibit excellent levels of frequency stability. Here we present an overview of the current understanding of the various processes and noise sources that limit ...
Parker, S. +7 more
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Coordinated frequency support strategy for VSC-HVDC integrated offshore wind farm system
Frontiers in Energy ResearchThe 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
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Inventions, 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
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A rotational speed recovery strategy for wind turbines considering secondary frequency drops
Zhejiang dianliWind turbines can contribute to frequency regulation by releasing rotor kinetic energy， which is an effective way to ensure frequency stability in power systems with high wind power penetration.
LYU Zhenhua +4 more
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Kinetic Energy Recovery of a Wind Energy Doubly-Fed Induction Generator for Grid Frequency Support
Engineering 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
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