Searched for: subject:"distribution%5C+network"
(1 - 20 of 24)

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Sereeter, B. (author)
During the normal operation, control and planning of the power system, grid operators employ numerous tools including the Power Flow (PF) and the Optimal Power Flow (OPF) computations to keep the balance in the power system. The solution of the PF computation is used to assess whether the power system can function properly for the given...
doctoral thesis 2020
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Oviedo-Ocaña, E. R. (author), Dominguez, I. C. (author), Celis, J. (author), Blanco, L. C. (author), Cotes, I. (author), Ward, S. (author), Kapelan, Z. (author)
Urban areas are facing challenges for the provision of public services, with water scarcity arising as one of the main problems. A twin track approach of supply and demand management is essential, and water-loss management contributes to reducing water demand. However, small municipalities from developing countries have technical, information...
journal article 2020
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Shekhar, A. (author)
Energy transition will inevitably lead to greater electrification. For example, it is anticipated that electrical energy demand will rise by at least 2-3 times by 2050 with increasing share of electric vehicles and heat pumps. This will translate to significant increase in power demand on the existing medium voltage distribution grid, resulting...
doctoral thesis 2020
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Vasilic, Željko (author), Stanic, Miloš (author), Kapelan, Z. (author), Prodanovic, Dušan (author), Babic, Branislav (author)
Sectorization of a water distribution network (WDN) into district metered areas (DMAs) is a proven solution for proactive leakage control. Traditionally, WDN sectorization is conducted by local experts using a trial-and-error approach, often resulting in the identification of arbitrary solutions. Some recently published methods try to improve...
journal article 2020
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Stecca, M. (author), Ramirez Elizondo, L.M. (author), Soeiro, Thiago B. (author), Bauer, P. (author), Palensky, P. (author)
Recent developments in the electricity sector encourage a high penetration of Renewable Energy Sources (RES). In addition, European policies are pushing for mass deployment of Electric Vehicles (EVs). Due to their non-controllable characteristics, these loads have brought new challenges in distribution networks, resulting in increased difficulty...
journal article 2020
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Meijer, D.H. (author), Post, Johan (author), van der Hoek, J.P. (author), Korving, Hans (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
Drinking water distribution networks (WDNs) are a crucial infrastructure for life in cities. Deterioration of this ageing, and partly hidden from view, infrastructure can result in losses due to leakage and an increased contamination risk. To counteract this, maintenance strategies are required to maintain the service level. Information on...
journal article 2020
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Ghotge, R. (author), van Wijk, A.J.M. (author), Vandeventer, Elisabeth (author), Alvarez, Juan Sebastian (author)
Microgrids enable distribution of electricity with higher shares of variable renewables, higher power quality, greater reliability and higher efficiency. There are a large number of factors in addition to the technology, which affect their shift towards market competitiveness and widespread adoption. The PESTEL framework, covering Political,...
conference paper 2020
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Sereeter, B. (author), van Westering, W.H.P. (author), Vuik, C. (author), Witteveen, C. (author)
In this paper, we propose a fast linear power flow method using a constant impedance load model to simulate both the entire Low Voltage (LV) and Medium Voltage (MV) networks in a single simulation. Accuracy and efficiency of this linear approach are validated by comparing it with the Newton power flow algorithm and a commercial network design...
journal article 2019
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Pecci, Filippo (author), Abraham, E. (author), Stoianov, Ivan (author)
The optimal placement and operation of pressure control valves in water distribution networks is a challenging engineering problem. When formulated in a mathematical optimization framework, this problem results in a nonconvex mixed integer nonlinear program (MINLP), which has combinatorial computational complexity. As a result, the considered...
journal article 2019
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Sophocleous, Sophocles (author), Savić, Dragan (author), Kapelan, Z. (author)
This research article presents a model-based framework for detecting and localizing leaks in water distribution networks (WDNs). The framework uses optimization and systematic search space reduction. The method employs two stages: (1) the search space reduction (SSR) stage and (2) the leakage detection and localization stage (LDL). During SSR...
journal article 2019
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Serna Suarez, I.D. (author), Carrillo-Caicedo, Gilberto (author), Morales-Espana, G. (author), de Weerdt, M.M. (author), Ordóñez-Plata, Gabriel (author)
The increase of solar photovoltaic penetration poses several challenges for distribution network operation, mainly because such high penetration might cause reliability problems like protection malfunctioning, accelerated decay of voltage regulators and voltage violations. Existing solutions based on mathematical programming solve a 3-phase...
journal article 2019
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Nair, Varun (author), Litjens, R. (author), Zhang, Haibin (author)
A suitability assessment and performance optimisation is presented of narrowband Internet of Things (NB-IoT) cellular technology for use in smart energy distribution networks. The focus is on the reliable and timely delivery of outage restoration and management (ORM) messages at the event of a local or regional power outage. Both the cellular...
journal article 2019
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Abdelmotteleb, I.I.A. (author)
A significant transformation has been gradually taking place within the energy sector, mainly as a result of energy policies targeting environmental objectives. Consequently, the penetration of Distributed Energy Resources (DERs) has been escalating, including self-generation, demand side management, storage, and electrical vehicles. Although...
doctoral thesis 2018
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Luong, N.H. (author)
In our modern daily life, many activities require electricity, for example, the usage of domestic appliances, manufacturing, communication, and transportation. It is therefore essential to maintain a reliable supply of electricity to ensure the operation of such activities. The electricity supply, in a large part, depends on the underlying...
doctoral thesis 2018
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Evans, Michael (author), Angeli, David (author), Tindemans, S.H. (author)
We consider the problem of dispatching a fleet of distributed energy reserve devices to collectively meet a sequence of power requests over time. Under the restriction that reserves cannot be replenished, we aim to maximise the survival time of an energy-constrained islanded electrical system; and we discuss realistic scenarios in which this...
conference paper 2018
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Shekhar, A. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
The role of MVDC links for distribution network expansion is important. The distribution network operators (DNOs) can maximize the power transfer capacity of existing grid infrastructure during (n-1] contingencies using reconfigurable parallel ac-dc architecture. In addition this concept involves a range of efficiency, reliability and...
conference paper 2018
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Eid, C. (author)
The European policy focus on smart grids implies their development as an indispensable part of the future power system. However, the definition of a smart grid is broad and vague, and the actual implementation of a smart grid can differ significantly depending on the stakeholders involved. Smart electricity grids can be defined as electricity...
doctoral thesis 2017
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Sereeter, B. (author), Vuik, C. (author), Witteveen, C. (author)
Two mismatch functions (power or current) and three coordinates (polar, Cartesian andcomplex form) result in six versions of the Newton–Raphson method for the solution of powerflow problems. In this paper, five new versions of the Newton power flow method developed forsingle-phase problems in our previous paper are extended to three-phase power...
journal article 2017
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Abdelmotteleb, I.I.A. (author), Gómez, Tomás (author), Reneses, Javier (author)
As the penetration of distributed energy resources (DERs) escalates in distribution networks, new network tariffs are needed to cope with this new situation. These tariffs should allocate network costs to users, promoting an efficient use of the distribution network. This paper proposes a methodology to evaluate and compare network tariff...
journal article 2017
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Ma, M. (author), Herdeiro Teixeira, A.M. (author), van den Berg, J. (author), Palensky, P. (author)
Low-voltage distribution grids experience a rising penetration of inverter-based, distributed generation. In order to not only contribute to but also solve voltage problems, these inverters are increasingly asked to participate in intelligent grid controls. Communicating inverters implement distributed voltage droop controls. The impact of...
journal article 2017
Searched for: subject:"distribution%5C+network"
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