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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   +2 more sources

Italian Experience on Electrical Storage Ageing for Primary Frequency Regulation [PDF]

open access: yesEnergies, 2018
The paper describes the results of different types of ageing tests performed by Terna (the Italian Transmission System Operator) applied to several electrochemical technologies, namely lithium-based and sodium-nickel chloride-based technologies.
Roberto Benato   +4 more
doaj   +3 more sources

Aggregation Frequency Response Modeling for Wind Power Plants With Primary Frequency Regulation Service [PDF]

open access: yesIEEE Access, 2019
High-penetration wind power access to grid requires wind turbine generator (WTG) to provide frequency regulation service. Consequently, the frequency dynamics of wind power plants (WPPs) integrated system are changing; thus, it is necessary to ...
Jianfeng Dai   +3 more
doaj   +2 more sources

Reserve optimization model of wind power with the coordination of multiple type electric power system sources [PDF]

open access: yesScientific Reports
Aiming at the optimization problem of frequency regulation energy reserve cost faced by wind power stations participating in primary frequency regulation, a reserve optimization model of wind power based on DPGMM-LSTM with the coordination of multi-type ...
Han Zhang   +3 more
doaj   +2 more sources

Frequency-Domain Equivalent Model of District Cooling Systems for Primary Frequency Regulation

open access: yesCSEE Journal of Power and Energy Systems
With increasing adoption of intermittent renewable generation, challenges to maintain stable frequencies for power systems are increasing. Demand-side resources, such as thermo-statically controlled loads (TCLs), have been proven capable of providing ...
Peipei Yu, Hongcai Zhang, Yonghua Song
doaj   +2 more sources

Dynamic Power Flow Modeling Primary and Secondary Frequency Regulations

open access: yesIEEE Access
In power systems, the steady-state operations following any disturbance can be assessed by means of time-domain simulations, which consider the dynamic of the system without simplifying hypotheses.
Roberto Benato   +2 more
doaj   +2 more sources

Primary Frequency Regulation using HVDC terminals controlling Voltage Dependent Loads [PDF]

open access: yes2021 IEEE Power & Energy Society General Meeting (PESGM), 2021
HVDC can provide frequency regulation during disturbances (e.g., faults) by controlling the power flow between two remote AC areas. While this action reduces the power deviation in the area affected by the disturbance, it causes a power imbalance in the other healthy AC area, leading to a frequency variation and endangering the system stability.
Langwasser, Marius   +3 more
openaire   +3 more sources

Operation of frequency primary control in EPS [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2011
Electric Power Industry of Serbia (EPS) performs a variety of system services for the Serbia's Transmission System Operator (EMS). As part of these services, primary frequency control takes very important place.
Georgijević Nikola
doaj   +1 more source

Distributed energy frequency–voltage support technology

open access: yesEnergy Reports, 2023
With the development of distributed energy, the penetration rate of power electronic devices is increasing, and the dominance of thermal power generation will be slowly replaced by it.
Chouwei Ni   +5 more
doaj   +1 more source

Arousal regulates frequency tuning in primary auditory cortex [PDF]

open access: yesProceedings of the National Academy of Sciences, 2019
Significance Changes in brain state modulate how information is processed in sensory cortical areas. Here we use population imaging and intracellular recording to show that arousal regulates frequency tuning in layer 2/3 of primary auditory cortex.
Lin, Pei-Ann   +3 more
openaire   +4 more sources

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