Results 31 to 40 of about 792,099 (261)

Hydrogen Infrastructure Project Risks in The Netherlands

Energies, 2021
This study aims to assess the potential risks of setting up a hydrogen infrastructure in the Netherlands. An integrated risk assessment framework, capable of analyzing projects, identifying risks and comparing projects, is used to identify and analyze ...
Pieter W. M. Vasbinder, Antoine W. G. de Vries, Wim Westerman   +2 more
doaj   +1 more source

Optimal coordination of directional overcurrent relays using hybrid fractional computing with gravitational search strategy

Energy Reports, 2021
The protection system has a vital role in subsystems of the power network including the generation, transmission and distribution system. This system combines several types of protection relays including directional over current relay, differential relay,
Yasir Muhammad, Muhammad Asif Zahoor Raja, Muhammad Abid Ali Shah, Saeed Ehsan Awan, Farman Ullah, Naveed Ishtiaq Chaudhary, Khalid Mehmood Cheema, Ahmad H. Milyani, Chi-Min Shu   +8 more
doaj   +1 more source

Inference on the tail process with application to financial time series modeling [PDF]

Journal of Econometrics, 2016
To draw inference on serial extremal dependence within heavy-tailed Markov chains, Drees et al., (2015) proposed nonparametric estimators of the spectral tail process. The methodology can be extended to the more general setting of a stationary, regularly
R. Davis, H. Drees, Johan Segers, M. Warchoł   +3 more
semanticscholar   +1 more source

Adaptive overcurrent protection scheme coordination in presence of distributed generation using radial basis neural network

Protection and Control of Modern Power Systems, 2023
The operational performance of conventional overcurrent protection relay coordination connected to a distribution network is adversely affected by the penetration of distributed generators (DG) at different buses in the network.
U. Uma, Daniel Nmadu, N. Ugwuanyi, O. E. Ogah, N. Eli-Chukwu, M. Eheduru, Arthur Ekwue   +6 more
semanticscholar   +1 more source

Hybrid mixed-integer non-linear programming approach for directional over-current relay coordination

The Journal of Engineering, 2019
This article proposes the optimal coordination problem of protective relays within a hybrid optimisation framework which is presented based on integer coded genetic algorithm (ICGA) and non-linear programming (NLP).
Mohammad Sadegh Javadi, Ali Esmaeel Nezhad, Ali Esmaeel Nezhad, Amjad Anvari-Moghadam, Josep M. Guerrero   +4 more
doaj   +1 more source

A Novel Proposed Algorithm to Enhance the Overcurrent Relays’ Performance in Active Distribution Networks

International Transactions on Electrical Energy Systems, 2022
This research addresses two topics: the first is the optimal coordination of overcurrent relays (OCRs), which has recently become a major challenge to ensure reliability and speed of relays’ operation, and the second is a modified circuit added to the ...
Sally El-Tawab, Hassan S. Mohamed, A. M. Abdel-Aziz   +2 more
doaj   +1 more source

An Adaptive and Scalable Protection Coordination System of Overcurrent Relays in Distributed-Generator-Integrated Distribution Networks

Applied Sciences, 2021
Integration of distributed generators (DGs) into a distribution network (DN) can cause coordination challenges of overcurrent relays (OCRs) because of different fault-current contributions of DGs as well as the directional change in fault currents ...
Duong Minh Bui, Phuc Duy Le, Thanh Phuong Nguyen, Hung Nguyen   +3 more
doaj   +1 more source

Sticky Price Models of the Business Cycle: Can the Contract Multiplier Solve the Persistence Problem?

, 2000
The purpose of this paper is to construct a quantitative equilibrium model with price setting and use it to ask whether staggered price setting can generate persistent output fluctuations following monetary shocks.
V. Chari, Patrick J. Kehoe, Ellen R. Mcgrattan   +2 more
semanticscholar   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 more
wiley   +1 more source

Comparative study of heuristic algorithms for coordination of industrial over current relays with nonstandard characteristics in microgrid protection

Scientific Reports
The traditional methods for over-current relay coordination (OCR) may not be adequate to ensure consistent and dependable operation of microgrid (MG), in its various operating modes.
Ekta Gairola, Mahiraj Singh Rawat, Padmanabh Thakur, Sandeep Gupta, Mukesh Kumar   +4 more
doaj   +1 more source