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Frequency Deviation of Injection-Locked Microwave Autodynes [PDF]

open access: yesRadioengineering, 2019
This article presents the results of the autodyne (AD) frequency deviation research, which is simultaneously affected by its own reflected radiation and the external synchronisation signal. The basic correlations are obtained for the injection-locked AD (
V. Ya. Noskov   +2 more
doaj   +4 more sources

Experimental Estimation of Deviation Frequency within the Spectrum of Scintillations of the Carrier Phase of GNSS Signals

open access: yesRemote Sensing, 2021
The term deviation frequency (fd) denotes the boundary between the variable part of the amplitude and phase scintillation spectrum and the part of uninformative noises.
Vladislav Demyanov   +3 more
doaj   +3 more sources

Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation

open access: yesEnergies, 2017
In an electric power grid that has a high penetration level of wind, the power fluctuation of a large-scale wind power plant (WPP) caused by varying wind speeds deteriorates the system frequency regulation. This paper proposes a power-smoothing scheme of
Hyewon Lee   +4 more
doaj   +3 more sources

Exploring deterministic frequency deviations with explainable AI [PDF]

open access: yes2021 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm), 2021
7 pages, 4 ...
Johannes Kruse 0001   +2 more
openaire   +2 more sources

A novel three-level optical storage machine based on grid frequency control

open access: yesXi'an Gongcheng Daxue xuebao, 2023
Due to the fluctuation of PV power, it is difficult to keep the active power of the PV grid-connected inverter constant. To address the above problems, this paper proposed a new three-level integrated photovoltaic storage machine consisting of a T-type ...
WANG Gang   +6 more
doaj   +1 more source

RoCoF Droop Control of PMSG-Based Wind Turbines for System Inertia Response Rapidly

open access: yesIEEE Access, 2020
This paper proposes a RoCoF droop control, which relieves the transient frequency change process by controlling the energy of the DC side capacitor. Firstly, analyze and classify the control time scale of the wind power system (WPS).
Wu Binbing   +3 more
doaj   +1 more source

Dynamic Stability Analysis of Isolated Power System

open access: yesApplied Sciences, 2022
The islanded mode of operation of an electric power system (EPS) that has generation capabilities provided by conventional thermal power plants, by a pumped-storage power station, or from an interlink with a neighboring electric power system through an ...
Ramūnas Deltuva   +2 more
doaj   +1 more source

Detection of Frequency Deviations for Monitoring of Power Systems [PDF]

open access: yes2019 Australian & New Zealand Control Conference (ANZCC), 2019
In this work an algorithm for identification of power system frequency deviation is presented. The proposed approach can be used to monitor frequency measurements from syncrophasor measurement units (PMU) and to store data only for important events and save storage in the local server.
Felix Rafael Segundo Sevilla   +3 more
openaire   +1 more source

Frequency‐trajectory‐oriented control strategy for primary frequency regulation of wind farms

open access: yesIET Generation, Transmission & Distribution, 2023
With the rapid increase of wind power penetration, the frequency indicators of power system, encompassing frequency deviation and rate of change of frequency (RoCoF), are prone to exceed the pertinent relay thresholds, thus leading to serious power ...
Xusong Yang   +3 more
doaj   +1 more source

Advanced algorithm to detect stealthy cyber attacks on automatic generation control in smart grid

open access: yesIET Cyber-Physical Systems, 2020
One of the basic requirements of today's sophisticated world is the availability of electrical energy, and neglect of this matter may have irreparable damages such as an extensive blackout.
Fatemeh Akbarian   +3 more
doaj   +1 more source

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