Results 31 to 40 of about 1,317,065 (284)
Global warming and rising energy demands have increased renewable energy (RE) usage globally. Wind energy has become the most technologically advanced renewable energy source. Wind turbines (WTs) must ride through faults to ensure power system stability.
Ernest F. Morgan +4 more
doaj +1 more source
SMART GRIDS – GENERAL REVIEW OF SYNCHRONIZATION TECHNIQUES
This paper deals with crucial aspect of synchronization in modern power grids. It presents the concept of intelligent networks (“smart grids”), as the future of today’s grid infrastructure.
Piotr Lipnicki
doaj +1 more source
Mapping of grid faults and grid codes [PDF]
The present report is a part of the research project “Grid fault and designbasis for wind turbine” supported by Energinet.dk through the grant PSO F&U 6319. The objective of this project is to investigate into the consequences of the new grid connection requirements for the fatigue and extreme loads of wind turbines. The goal is also to clarify and
Iov, F. +3 more
openaire +2 more sources
Leveraging legacy codes to distributed problem solving environments: A web service approach [PDF]
This paper describes techniques used to leverage high performance legacy codes as CORBA components to a distributed problem solving environment. It first briefly introduces the software architecture adopted by the environment.
Li, M +5 more
core +6 more sources
Stability Assessment and Enhanced Control of DFIG-Based WTs During Weak AC Grid
According to the latest grid codes, wind turbines (WTs) are required to inject certain amount of reactive and active current into the faulty grid during voltage sags.
Zhi Li +3 more
doaj +1 more source
Minimum-Density Identifying Codes in Square Grids [PDF]
An identifying code in a graph $G$ is a subset of vertices with the property that for each vertex $v \in V(G)$, the collection of elements of $C$ at distance at most $1$ from $v$ is non-empty and distinct from the collection of any other vertex. We consider the minimum density $d^*({\cal S}_k)$ of an identifying code in the square grid ${\cal S}_k$ of ...
Bouznif, Marwane +2 more
openaire +4 more sources
A classification of emerging and traditional grid systems [PDF]
The grid has evolved in numerous distinct phases. It started in the early ’90s as a model of metacomputing in which supercomputers share resources; subsequently, researchers added the ability to share data.
Li, M, Kurdi, H, Al-Raweshidy, H
core +5 more sources
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
The article presents calculations and power flow of a real virtual power plant (VPP), containing a fragment of low and medium voltage distribution network.
Tomasz Sikorski +14 more
doaj +1 more source
Finding Codes on Infinite Grids Automatically
We apply automata theory and Karp’s minimum mean weight cycle algorithm to minimum density problems in coding theory. Using this method, we find the new upper bound 53/126 ≈ 0.4206 for the minimum density of an identifying code on the infinite hexagonal grid, down from the previous record of 3/7 ≈ 0.4286.
Törmä Ilkka, Salo Ville
openaire +3 more sources

