Results 21 to 30 of about 2,208,266 (201)

Neural Network-Based Coordinated Virtual Inertia Allocation Method for Multi-Region Distribution Systems

open access: yesApplied Sciences
Virtual inertia is a measure of the capability of distributed sources and loads within power supply units to resist system frequency variations through additional control strategies applied to converters.
Heng Liu   +3 more
doaj   +1 more source

Developed Transfer Function Allows Hydro Generators to Enter the Full Range of Ancillary Services Market

open access: yesEnergies, 2022
As the number of available renewable energy sources has increased annually, there has been a corresponding rise in the levels of pollution created by traditional electricity generation, ultimately contributing to breaking down the stability of the ...
Paulius Cicėnas, Virginijus Radziukynas
doaj   +1 more source

Computer determines high-frequency phase stability [PDF]

open access: yes, 1964
Determination of phase stability of a high frequency signal using a computer is accomplished by a circuit using two auxiliary oscillators, multipliers and low-pass filters in cross correlation with the oscillator producing the signal of ...
Nichols, G. B.
core   +1 more source

Cancellation of light-shifts in an N-resonance clock

open access: yes, 2005
We demonstrate that first-order light-shifts can be cancelled for an all-optical, three-photon-absorption resonance ("N-resonance") on the D1 transition of Rb87. This light-shift cancellation enables improved frequency stability for an N-resonance clock.
Aleksei V. Taichenachev   +11 more
core   +1 more source

Performance of a MOPA laser system for photocathode research [PDF]

open access: yes, 1993
A Nd:YLF laser system with frequency doubled output is described. Several aspects concerning energy and stability of the pulses will be discussed. The system consists of a CW mode locked Nd:YLF oscillator and two double pass amplifiers having a total ...
Ernst, G.J., Mols, R.F.X.A.M.
core   +2 more sources

Simulation-Based Analysis of DRL Exploitation Rate for Voltage and Frequency Stability in a Single-Inverter Microgrid Control System

open access: yesIEEE Access
This paper discusses the development and performance evaluation of a single-inverter-based microgrid control system using a Deep Reinforcement Learning (DRL) agent trained with the Twin Delayed Deep Deterministic Policy Gradient (TD3) algorithm.
Noer Fadzri Perdana Dinata   +4 more
doaj   +1 more source

Stabilization of grid frequency through dynamic demand control [PDF]

open access: yes, 2007
Frequency stability in electricity networks is essential to the maintenance of supply quality and security. This paper investigates whether a degree of built-in frequency stability could be provided by incorporating dynamic demand control into certain ...
Freris, Leon L.   +2 more
core   +1 more source

Site Suitability Assessment and Grid-Forming Battery Energy Storage System Configuration for Hybrid Offshore Wind-Wave Energy Systems

open access: yesJournal of Marine Science and Engineering
Hybrid offshore wind-wave systems play an important role in renewable energy transition. To maximize energy utilization efficiency, a comprehensive assessment to select optimal locations is urgently needed.
Yijin Li   +5 more
doaj   +1 more source

The Network Topology Metrics Contributing to Local-Area Frequency Stability in Power System Networks

open access: yesEnergies, 2021
The power system network topology influences the system frequency response to power imbalance disturbances. Here, the objective is to find the network metric(s) contributing to frequency transient stability.
Warren J. Farmer, Arnold J. Rix
doaj   +1 more source

An Enhanced Frequency Response Strategy of a DFIG Based on Over-Speed De-Loaded Curve

open access: yesApplied Sciences, 2021
The increasing level of wind power penetration is seriously threatening the frequency stability of the power system. In this article, we suggest an enhanced frequency response strategy of a doubly fed induction generator (DFIG) based on over-speed de ...
Yien Xu, Hongmei Wang, Dejian Yang
doaj   +1 more source

Home - About - Disclaimer - Privacy