Results 51 to 60 of about 415,122 (294)

Estimation of Power System Inertia Using Nonlinear Koopman Modes

open access: yes, 2018
We report a new approach to estimating power system inertia directly from time-series data on power system dynamics. The approach is based on the so-called Koopman Mode Decomposition (KMD) of such dynamic data, which is a nonlinear generalization of ...
Hamasaki, Ryo   +2 more
core   +1 more source

Transient Stability Hierarchical Control in Multimachine Power Systems

open access: yesIEEE Power Engineering Review, 1989
The authors present the optimal transient stability control problem in a hierarchical structure for multimachine power systems. The two-level structure retains the local closed-loop controls, thereby easing its implementation on existing systems. The formulation accounts for nonlinearities and interconnections, and the optimization of the system ...
A. Rubaai, F.E. Villaseca
openaire   +2 more sources

Application of fuzzy logic to power system stabilizer [PDF]

open access: yes, 2008
Power systems stability is a complex problem which was first recognised in 1920 and has been widely investigated by power system engineers ever since.
Abdullah, Shahrum Shah
core  

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Identification of dominant instability modes in power systems based on spatial‐temporal feature mining and TSOA optimization

open access: yesIET Generation, Transmission & Distribution
The recognition of the transient dominant instability mode is of great significance for rapidly and accurately formulating transient emergency decisions in power systems. In response to the challenge of accurately distinguishing between angle instability
Miao Yu   +5 more
doaj   +1 more source

Stacked-GRU Based Power System Transient Stability Assessment Method

open access: yesAlgorithms, 2018
With the interconnection between large power grids, the issue of security and stability has become increasingly prominent. At present, data-driven power system adaptive transient stability assessment methods have achieved excellent performances by ...
Feilai Pan   +6 more
doaj   +1 more source

Frequency support characteristics of grid-interactive power converters based on the synchronous power controller [PDF]

open access: yes, 2016
Grid-interactive converters with primary frequency control and inertia emulation have emerged and are promising for future renewable generation plants because of the contribution in power system stabilization.
Remón Rodríguez, Daniel   +2 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Synchronization and Transient Stability in Power Networks and Non-Uniform Kuramoto Oscillators [PDF]

open access: yes, 2011
Motivated by recent interest for multi-agent systems and smart power grid architectures, we discuss the synchronization problem for the network-reduced model of a power system with non-trivial transfer conductances.
Bullo, Francesco, Dorfler, Florian
core  

Application of EOS-ELM with binary Jaya-based feature selection to real-time transient stability assessment using PMU data

open access: yes, 2017
Recent studies show that pattern-recognition-based transient stability assessment (PRTSA) is a promising approach for predicting the transient stability status of power systems.
Li, Yang, Yang, Zhen
core   +1 more source

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