Searched for: subject:"Power%5C+grids"
(1 - 19 of 19)
document
Markensteijn, A.S. (author), Romate, J.E. (author), Vuik, Cornelis (author)
Coupling single-carrier networks into multi-carrier energy systems (MESs) has recently become more important. Conventional load flow models for the separate single-carrier networks are not able to capture the full extend of the coupling. Recently, different models for multi-carrier energy networks have been proposed, either using the energy...
journal article 2020
document
Subramanian, S.M. (author)
The de-carbonisation of the energy system, more commonly known as the 'Energy Transition' has a vital role to play in the pursuit of mitigating the climate emergency’s impact. There is a global trend of moving toward making power systems more future-proof and this largely affects the roles and activities of a Transmission System Operator (TSO)...
master thesis 2020
document
Sanchez, Francisco (author), Cayenne, Joshua (author), González-Longatt, Francisco (author), Rueda, José L. (author)
The increased adoption of renewable energy generation is reducing the inertial response of the Great Britain (GB) power system, which translates into larger frequency variations in both transient and pseudo-steady-state operation. To help mitigate this, National Grid, the transmission system operator in GB, has designed a control scheme...
journal article 2019
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Wu, Y. (author), Shekhar, A. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
Back-To-Back (B2B) Voltage Source Converter (VSC) with AC-side LCL filters can be adopted for parallel AC-DC distribution links. In this paper, Grid-side Current Control (GCC) for the inner/fast control loops of the front- and backend power electronics are implemented in order to enhance the system performance against grid disturbances. Herein,...
conference paper 2019
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Khuntia, S.R. (author), Rueda, José L. (author), van der Meijden, M.A.M.M. (author)
Location of wind power plants and demand centres are not always close by; hence, the transmission of energy puts a burden on existing grid infrastructure. This unwanted burden necessitates transmission lines to operate more and more frequently close to their operating limits. To alleviate such situations, this research addresses the advantages...
journal article 2019
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Cetinay-Iyicil, H. (author)
Electric power has become an essential part of daily life: we plug our electronic devices in, switch our lights on, and expect to have power. As the availability of power is usually taken for granted in modern societies, we mostly feel annoyed at its absence and perceive the importance of power during outages which have severe effects on the...
doctoral thesis 2018
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Çetinay Iyicil, H. (author), Kuipers, F.A. (author), Van Mieghem, P.F.A. (author)
This paper combines the fundamentals of an electrical grid, such as flow allocation according to Kirchhoff’s laws and the effect of transmission line reactances with spectral graph theory, and expresses the linearized power flow behaviour in slack-bus independent weighted graph matrices to assess the relation between the topological structure...
journal article 2018
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Cetinay-Iyicil, H. (author), Devriendt, K.L.T. (author), Van Mieghem, P.F.A. (author)
Due to the open data policies, nowadays, some countries have their power grid data available online. This may bring a new concern to the power grid operators in terms of malicious threats. In this paper, we assess the vulnerability of power grids to targeted attacks based on network science. By employing two graph models for power grids as...
journal article 2018
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Çetinay Iyicil, H. (author), Soltan, Saleh (author), Kuipers, F.A. (author), Zussman, Gil (author), Van Mieghem, P.F.A. (author)
In this paper, we compare the effects of failures in power grids under the nonlinear AC and linearized DC power flow models. First, we numerically demonstrate that when there are no failures and the assumptions underlying the DC model are valid, the DC model approximates the AC model well in four considered test networks. Then, to evaluate...
journal article 2018
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Cetinay-Iyicil, H. (author), Soltan, Saleh (author), Kuipers, F.A. (author), Zussman, Gil (author), Van Mieghem, P.F.A. (author)
In this paper, we study cascading failures in power grids under the nonlinear AC and linearized DC power flow models. We numerically compare the evolution of cascades after single line failures under the two flow models in four test networks. The cascade simulations demonstrate that the assumptions underlying the DC model (e.g., ignoring power...
journal article 2017
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Warnier, Martijn (author), Dulman, S.O. (author), Koc, Y. (author), Pauwels, E.J.E.M. (author)
Electrical power grids are vulnerable to cascading failures that can lead to large blackouts. The detection and prevention of cascading failures in power grids are important problems. Currently, grid operators mainly monitor the states (loading levels) of individual components in a power grid. The complex architecture of a power grid, with its...
journal article 2017
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Wang, X. (author)
Failures of networks, such as power outages in power systems, congestions in<br/>transportation networks, paralyse our daily life and introduce a tremendous cascading effect on our society. Networks should be constructed and operated in a robust way against random failures or deliberate attacks.<br/>We study how to add a single link into an...
doctoral thesis 2016
document
Stratis, A. (author)
The traditional power grid map has drastically changed with the advent of renewable energy technologies. The intermittent nature of renewable energy sources hours. In order to deal with issues related to the fundamental quantities of a power grid system (frequency, voltage and current), smart grid systems have been introduced to ensure that...
master thesis 2016
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Koc, Y. (author), Raman, Abhishek (author), Warnier, Martijn (author), Kumar, Tarun (author)
Power grid outages cause huge economical and societal costs. Disruptions in the power distribution grid are responsible for a significant fraction of electric power unavailability to customers. The impact of extreme weather conditions, continuously increasing demand, and the over-ageing of assets in the grid, deteriorates the safety of...
journal article 2016
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Koç, Y. (author)
Current and future trends in environmental, economical, and human-caused factors (such as power demand growth, over-ageing of assets in power grids, and extreme weather conditions) challenge power grid robustness in the near future, necessitating research to better analyse and understand the notion of robustness in power grids, and ultimately to...
doctoral thesis 2015
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Sattich, T (author), Ydersbond, IM (author), Scholten, D.J. (author)
Europe’s power system is still marked by a distinct national component, and despite some regions with strongly integrated power systems, electricity supply today still has a largely national basis. Policies to decarbonise the power sector may fundamentally alter this situation, because power generation from renewable, carbon-neutral sources may...
journal article 2015
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Imambaks, R. (author)
This paper has been written for everyone that is interested in the topic of energy and consists of part one and part two. Attempted has been to write this paper in such a way so that it’s easy to follow for everyone. Part one, the non-technical part, should be an easy read for everyone. Part two, on the other hand, is a technical report,...
master thesis 2013
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Verma, T. (author)
Power sector vulnerability has been a key issue in society for over a decade. A component failure may trigger cascades of failures across the grid and lead to a large blackout. Complex Network approaches have shown a direction to study some of the problems faced by power grids and it is a continuing challenge thus far. Power grids have been...
master thesis 2012
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Xu, S. (author)
This thesis deals with two research problems. The first research problem is motivated by the numerical computation involved in the Time Domain Simulation (TDS) of Power Grids. Due to the ever growing size and complexity of Power Grids such as the China National Grid, accelerating TDS has become a stringent need for the online analysis of these...
doctoral thesis 2011
Searched for: subject:"Power%5C+grids"
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