Results 31 to 40 of about 1,640,913 (296)

Planck-LFI: Design and Performance of the 4 Kelvin Reference Load Unit [PDF]

open access: yes, 2009
The LFI radiometers use a pseudo-correlation design where the signal from the sky is continuously compared with a stable reference signal, provided by a cryogenic reference load system.
A Brighenti   +57 more
core   +2 more sources

Small-signal stability analysis for the multi-terminal VSC MVDC distribution network; a review

open access: yesThe Journal of Engineering, 2019
The stable operation and control of the proposed terrestrial multi-terminal Voltage Source Converter (VSC) medium voltage DC (MVDC) distribution network is a remarkable motivation towards developing the future universal DC grid interconnecting the low ...
Patrobers Simiyu   +6 more
doaj   +1 more source

LS-CS-residual (LS-CS): Compressive Sensing on Least Squares Residual [PDF]

open access: yes, 2010
We consider the problem of recursively and causally reconstructing time sequences of sparse signals (with unknown and time-varying sparsity patterns) from a limited number of noisy linear measurements.
Vaswani, Namrata
core   +2 more sources

Small Signal Stability with the Householder Method in Power Systems

open access: yesEnergies, 2019
Voltage collapse in power systems is still considered the greatest threat, especially for the transmission system. This is directly related to the quality of the power, which is characterized by the loss of a stable operating point and the deterioration ...
Asghar Sabati   +4 more
doaj   +1 more source

Study on quick judgement of small signal stability using CNN

open access: yesThe Journal of Engineering, 2019
Dynamic security assessment (DSA) is widely used in dispatching operation systems, and the small signal stability is one of the DSA's most time-consuming calculation methods.
Dongyu Shi   +8 more
doaj   +1 more source

Small-Signal Modelling and Analysis of Doubly-Fed Induction Generators in Wind Power Applications [PDF]

open access: yes, 2008
The worldwide demand for more diverse and greener energy supply has had a significant impact on the development of wind energy in the last decades. From 2 GW in 1990, the global installed capacity has now reached about 100 GW and is estimated to grow ...
Mei, Francoise, Mei, Francoise
core   +1 more source

Stochastic Small Signal Stability of a Power System with Uncertainties

open access: yesEnergies, 2018
The ever-increasing penetration of wind power generation and plug-in electric vehicles introduces stochastic continuous disturbances to the power system.
Yan Xu   +5 more
doaj   +1 more source

Review of Small-Signal Converter-Driven Stability Issues in Power Systems

open access: yesIEEE Open Access Journal of Power and Energy, 2022
New grid devices based on power electronics technologies are increasingly emerging and introduce two new types of stability issues into power systems, which are different from traditional power system stability phenomena and not well understood from a ...
Le Kong   +3 more
doaj   +1 more source

DC microgrid small-signal stability and control: Sufficient stability criterion and stabilizer design

open access: yesSustainable Energy, Grids and Networks, 2021
Abstract The behavior of constant power loads is known to be a potential cause of instability in DC microgrids. This issue is addressed by the DC microgrid stabilizer proposed in this paper. It relies on active stabilization through power electronic control by introducing a virtual positive resistance to counteract the negative incremental resistance
Moustafa Adly, Kai Strunz
openaire   +1 more source

Assessing the Impact of DFIG Synthetic Inertia Provision on Power System Small-Signal Stability

open access: yesEnergies, 2019
Synthetic inertia provision through the control of doubly-fed induction generator (DFIG) wind turbines is an effective means of providing frequency support to the wider electrical network.
Edgar Lucas   +2 more
doaj   +1 more source

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