Results 21 to 30 of about 3,767,915 (147)
Robust and efficient coding with grid cells
PLOS Computational Biology, 2017 Abstract The neuronal code arising from the coordinated population activity of grid cells in the rodent entorhinal cortex can uniquely represent space across large distances but the precise conditions for efficient coding are unknown. Here we present a number-theoretic analysis of grid coding and derive an upper bound on the distance ...
Lajos Vágó, Balázs Ujfalussy
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A New Perspective of Wind Power Grid Codes Under Unbalanced and Distorted Grid Conditions
IEEE Access, 2020 Increasing penetration of wind power has led power system operators worldwide to develop new grid codes for integration of a wind power plant (WPP) onto the grid. According to the grid codes issued by Federal Energy Regulatory Commission (FERC) in the US,
Md. Moinul Islam +3 more
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IEEE Access, 2018 Power electronic converter (PEC)-interfaced renewable energy generators (REGs) are increasingly being integrated to the power grid. With the high renewable power penetration levels, one of the key power system parameters, namely reactive power, is ...
M. Sarkar +2 more
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Mapping of grid faults and grid codes [PDF]
, 2007 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
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EnergiesPromoting a sustainable and low-carbon energy future through the integration of renewable energy is essential, yet it presents significant challenges due to the intermittent nature of resources such as solar and wind.
Gowthamraj Rajendran +2 more
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IEEE transactions on power electronics, 2018 Inverter-based distributed generation plays a vital role in the stability and reliability of new power systems. Under voltage sags, these systems must remain connected to the electrical network according to the stringent requirements of grid codes (GCs).
Miguel Andrés Garnica López +4 more
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Minimum-Density Identifying Codes in Square Grids [PDF]
, 2016 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
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A review of fault ride through of PV and wind renewable energies in grid codes
International Journal of Energy Research, 2018 This paper presents a comprehensive review of fault ride through (FRT) in the grid code of 38 selected countries with an emphasis on renewable energy (REN) sources–related rules.
M. Tarafdar Hagh, T. Khalili
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Finding Codes on Infinite Grids Automatically
Fundamenta InformaticaeWe 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
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Maximally Recoverable Codes for Grid-like Topologies [PDF]
Proceedings of the Twenty-Eighth Annual ACM-SIAM Symposium on Discrete Algorithms, 2017 The explosion in the volumes of data being stored online has resulted in distributed storage systems transitioning to erasure coding based schemes. Yet, the codes being deployed in practice are fairly short. In this work, we address what we view as the main coding theoretic barrier to deploying longer codes in storage: at large lengths, failures are ...
Parikshit Gopalan +5 more
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