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Dissertations / Theses on the topic 'Distribution network operator'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Eriksson, Jessica. "Introducing IP-TV, impacts and adjustments to the distribution and back-bone network of a network operator." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-97074.

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TDC Song has just entered the private market with Internet Access and VoIP services. To stay competitive on the market in the future, the company will be required to offer the customers video- and TV- services and have a complete triple play packet. The purpose of this master’s thesis is to determine which techniques that exist within IPTV, analyze TDC Song’s network and see what actions the company needs to take in network design and network quality in order to distribute a premium packet with up to 50 channels when using Moving Picture Experts Group phase 2 (MPEG-2) to compress the video. A

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2

Janssen, Tanguy. "Cost control of the access fee to the transmission grid for the distribution network operator." Thesis, KTH, Elektriska energisystem, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-119576.

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In the French liberalised electricity market, the Distribution Network Operators (DNOs) and the Transmission Network Operator (TNO) are both financed by an access fee paid by any client connected to their network. Within this frame, any DNO’s is a client of the TNO as a user of the transmission grid. It is regulated by the French Government, following the recommendation of the national energy regulation committee (CRE). The access fee to the transmission network is a major expenditure for ERDF, the national DNO. It is also a rather new matter of concern since the electrical system was previous

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3

FLAMMINI, MARCO GIACOMO. "Reference electric distribution network modelling and integration of electric vehicle charging stations." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2827703.

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Smartcities,withprosumersatthecentre,areatthefrontlineoftheenergytransition. The national and international policies should encourage then this transition by promoting, among many aspects, energy digitalization, massive penetration of renewable energies and electrification of the transport sector. To embrace all these changes, a holistic view, covering not only the distribution system, is necessary to plan, design and reorganize in particular urban areas. The radical distribution networks transformation is monitored and presented, both considering technical and non-technical aspects, which aim

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Falk, Karolina, and Joel Forsberg. "Adapting to the Changes Enforced by EU’s Network Codes for Electricity : The Consequences for an Electricity Company from a Distribution System Operator’s Perspective." Thesis, Linköpings universitet, Energisystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-107079.

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To reach EU’s climate and energy target an integrated electricity market is considered to be required (Klessmann, et al., 2011; Boie, et al., 2014; Becker, et al., 2013). As a result the European Commission decided to form a set of rules, named the Network Codes, to create a single European market (ENTSO-E, 2013b). The Network Codes will affect Distribution- and Transmission System Operators, grid users and production units as well as all the other actors on the electricity market (Eurelectric, n.d.a). Concerns regarding what the Network Codes’ actual consequences are have been expressed withi

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Munné, Collado Íngrid. "Flexibility services for distribution network operation." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/672895.

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On the way towards a low carbon electricity system, flexibility has become one of the main sources for achieving it. Flexibility can be understood as the ability of a power system to cope with the variability and uncertainty of demand and supply. Both the generation-side and the demand-side can provide it. This research is focused on the role of the demand-side flexibility for providing a service to the distribution system operator, who manages the medium and low-voltage network. By activating this flexibility from the demand-side to the distribution network operator, the latter can avoid or m

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Sendil, Halil. "Operation Of Water Distribution Networks." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615484/index.pdf.

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With continuously increasing urbanization, consumer demands and expansion of water supply systems, determination of efficient pump schedules became a more difficult task. Pumping energy costs constitute a significant part of the operational cost of the water distribution networks. This study aims to provide an effective daily pump schedule by minimizing the energy costs for constant and also for multi tariff of electricity (3 Kademeli Elektrik Tarifesi) in water distribution network. A case study has been performed in an area covering N8.3 and N7 pressure zones which are parts of Ankara water

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7

Wang, David Tse-Chi. "Incorporating distributed generation into distribution network planning : the challenges and opportunities for distribution network operators." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4621.

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Diversification of the energy mix is one of the main challenges in the energy agenda of governments worldwide. Technology advances together with environmental concerns have paved the way for the increasing integration of Distributed Generation (DG) seen over recent years. Combined heat and power and renewable technologies are being encouraged and their penetration in distribution networks is increasing. This scenario presents Distribution Network Operators (DNOs) with several technical challenges in order to properly accommodate DG developments. However, depending on various factors, such as l

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8

He, Yan. "Smart metering infrastructure for distribution network operation." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/97536/.

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With the increasing demand for energy throughout the world and the associated environmental problems, the development of a highly efficient and environmentally friendly Smart Grid has become an important objective worldwide. In Great Britain, the Smart Grid has been primarily focused on the distribution networks and smart metering is widely considered as a critical step towards the Smart Grid future. Conventionally, the communications infrastructure at the distribution level is very limited in terms of functionality and availability. There was very limited work to evaluate the impact of the co

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9

Singh, Ravindra. "State estimation in power distribution network operation." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/5468.

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The majority of power distribution networks were planned, designed and built as a passive but reliable link between the bulk power transmission point and the in- dividual customer. Enough latent capacity in cables and lines to accommodate anticipated demand growth was allowed and so the system was left unmonitored. Following the signicant development in business regulation, technology evolutions and various government policies towards low carbon renewable generation, it has become necessary to operate the distribution systems efficiently and in a controlled manner. This obviously needs state e

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10

Bosetti, Mauro <1978&gt. "Operation of distribution networks with distributed generation." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1861/1/Bosetti_Mauro_Tesi.pdf.

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Bosetti, Mauro <1978&gt. "Operation of distribution networks with distributed generation." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1861/.

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12

Samuel, Tomáš. "Vliv připojování disperzních zdrojů na DS 22 kV v dané oblasti a určení dopadů na provoz DS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218534.

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The Thesis deals with the current problem related to the connection of dispersive sources to the distribution network. The advantageous legislative support, however, gives a rapid rise to the sources of this kind. Current pricing philosophy favours in particular the growth of photovoltaic power plants. The introduction is aimed at the dispersive sources locating so as to give a comprehensive solution and better understanding of this issue. The equipments of this kind are located in accordance with legislation in force; however, it is necessary to formulate the possibilities of placing them fro

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13

Hidayat, Mohammad Noor. "Effective DG incentive and DSR incentive for distribution network operators." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.665440.

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Countries around the world set ambitious targets to substantially reduce their greenhouse gasses emissions, including those which come from electricity sector. This requires a transition to a low carbon electricity generation and supply system, which in part, can be met by increasing distributed generation (DG) connection and implementing demand side response (DSR) programme on distribution network. Therefore, the role of distribution network operators (DNOs) in facilitating the connection of new DG and the implementation of DSR programme is vital. In order to encourage DNOs to be more active

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Singh, Manish K. "Optimal Operation of Water and Power Distribution Networks." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/86860.

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Under the envisioned smart city paradigm, there is an increasing demand for the coordinated operation of our infrastructure networks. In this context, this thesis puts forth a comprehensive toolbox for the optimization of electric power and water distribution networks. On the analytical front, the toolbox consists of novel mixed-integer (non)-linear program (MINLP) formulations; convex relaxations with optimality guarantees; and the powerful technique of McCormick linearization. On the application side, the developed tools support the operation of each of the infrastructure networks independen

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Aithal, Avinash. "Operation of soft open point in a distribution network under faulted network conditions." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/111810/.

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A Soft Open Point (SOP) is a power electronic device, usually implemented using back-to-back voltage source converters (VSCs) installed at normally-open points (NOP) of a distribution network. SOPs are typically utilised to enhance distribution network operation, under normal network conditions. Their applications include power loss reduction, feeder load balancing, network reinforcement, voltage profile improvement and distributed generation (DG) connection support. This thesis investigates the operating principle and applications of a back-to-back VSC based SOP under faulted network conditio

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Akperi, Brian Temisan. "An informed long-term forecasting method for electrical distribution network operators." Thesis, Durham University, 2017. http://etheses.dur.ac.uk/12342/.

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Northern Powergrid (NPG) is an electrical distribution network operator in the UK servicing Yorkshire and the Northeast of England. Currently they produce long-term eight year forecasts for each substation on the network with an emphasis on an annual maximum demand (MD) figure. The current method used by NPG is thought to oversimplify the problem and does not give enough insight into changes in substation demand. In order to inform their current forecast, the novel CL-ANFIS method uses a combination of machine learning techniques for both forecasting and general insight to the drivers of deman

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Zubo, Rana H. A. "Distribution Network Operation with High Penetration of Renewable Energy Sources. Joint Active/Reactive Power Procurement: A Market-Based Approach for Operation of Distribution Network." Thesis, University of Bradford, 2019. http://hdl.handle.net/10454/18267.

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Distributed generators (DGs) are proposed as a possible solution to supply economic and reliable electricity to customers. It is adapted to overcome the challenges that are characterized by centralized generation such as transmission and distribution losses, high cost of fossil fuels and environmental damage. This work presents the basic principles of integrating renewable DGs in low voltage distribution networks and particularly focuses on the operation of DG installations and their impacts on active and reactive power. In this thesis, a novel technique that applies the stochast

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Cao, Ding-Mel. "Investigation of economic indicators of distribution network operation and development." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490258.

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This work investigates the economic indicators of distribution network (DN) operation and development. The overall cost of various voltage control methods which allow increased distributed generation (DG) connection was evaluated. It was found voltage regulators and area based control by OLTCs consistently provide the greatest cost benefits. Reactive power compensation has not been widely applied in the UK DNs. The value of its wide application on accommodating demand growth and facilitating DG penetration was found to vary depending on customers' parameters and voltage control scenarios. The

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Waseem, Irfan. "Impacts of Distributed Generation on the Residential Distribution Network Operation." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/36394.

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In this research, the impacts of installing DG on a residential distribution circuit are explored. The work is focused on analyzing the impact of DG installation on distribution network operation including voltage analysis, electric losses and reliability of the system. First, various DG penetration levels and the impact of distributing the DG across several locations are explored. Secondly, the impacts of installing DG on any one phase on the voltage profiles of the unbalanced three-phase distribution network are investigated. Thirdly, the losses of the system are analyzed. Next, the reliabil

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20

Zhang, Boyi. "Distribution network automation for multi-objective optimisation." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/distribution-network-automation-for-multiobjective-optimisation(4d04be21-2ac5-4891-8bcf-9b8ed6532043).html.

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Asset management and automation are acknowledged by distribution utilities as a useful strategy to improve service quality and reliability. However, the major challenge faced by decision makers in distribution utilities is how to achieve long-term return on the projects while minimising investment and operation costs. Distribution automation (DA) in terms of transformer economic operation (TEO), distribution network reconfiguration (DNR), and sectionalising switch placement (SSP) is recognised as the most effective way for distribution network operators (DNOs) to increase operation efficiency

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Pregelj, Aleksandar. "Impact of Distributed Generation on Power Network Operation." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/5127.

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Tools and algorithms are proposed that are useful for planning, designing, and operating a distribution network with a significant penetration of distributed generation (DG). In Task 1, a PV system simulation program is developed, which incorporates the most rigorous models for the calculation of insolation, module temperature, and DC and AC power output of a PV system. The effect of random inverter failures is incorporated in the model of a PV system, and a novel performance-derating coefficient is introduced. Furthermore, a novel inverter control algorithm is presented for systems with multi

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22

Zhang, Fan. "Operation of Networked Microgrids in the Electrical Distribution System." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1467974481.

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23

Ainah, Priye. "Coordinated active power reduction strategy for voltage rise mitigation in LV distribution network." Thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/28351.

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Integration of renewable energy systems by the utility, customers, and the third party into the electric power system, most especially in the MV and LV distribution networks grew over the last decade due to the liberalization of the electricity market, rising energy demand, and increasing environmental concern. The distributed rooftop PV system contributes to relieve the overall load, reduce losses, avoid conventional generation upgrade, and better matching of demand on the LV distribution network. Originally, the LV distribution network is designed for unidirectional current flow, that is fro

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Cao, Wanyu. "Soft Open Points for the operation of medium voltage distribution networks." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/86621/.

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Soft Open Points (SOPs) are power electronic devices installed in place of normally-open points in electrical power distribution networks. They are able to provide active power flow control, reactive power compensation and voltage regulation under normal network operating conditions, as well as fast fault isolation and post-fault supply restoration under abnormal conditions. The use of SOPs for the operation of medium voltage (MV) distribution networks was investigated. Three aspects were studied, which include the control of an SOP, benefit analysis of using SOPs and distribution network volt

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Behnood, Aref. "Optimal Operation of Battery Energy Storage Systems in Radial Distribution Networks." Thesis, Uppsala universitet, Elektricitetslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-397113.

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In recent years, power systems are facing with various challenges arising from the increased share of renewable energy systems. Among all sections of power systems, distribution grids are affected the most since the majority of renewable energy sources are connected to distribution grids. As the penetration of Variable Energy Sources increases in electric grids, energy storage systems have become more influential. In this context, this thesis presents a new algorithm for the optimal operation of Battery Energy Storage Systems in distribution grids. The proposed algorithm aims to define the opt

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Paisios, Andreas. "Profiling and disaggregation of electricity demands measured in MV distribution networks." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28777.

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Despite the extensive deployment of smart-meters (SMs) at the low-voltage (LV) level, which are either fully operational or will be in the near future, distribution network operators (DNOs) are still relying on a limited number of permanently installed monitoring devices at primary and secondary medium-voltage (MV) substations, for purposes of network operation and control, as well as to inform and facilitate trading interactions between generators, distributors and suppliers. Accordingly, improved and sufficiently developed models for the analysis of aggregate demands at the MV-level are requ

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PONGIGLIONE, PAOLA. "Optimal operation and planning of transmission and distribution networks, towards renewable sources and storage integration." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1006216.

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In the last two decades, power systems have faced a thundering transformation due to the widespread penetration of Distributed Generation (DG) which revolutionized the traditional paradigms of network operation and planning. Driven by a multitude of factors (including the diffusion of renewable sources in distribution grids, the progress in storage technologies and their price reduction, the environmentally friendly policies that promoted green sources to reduce fossil fuels consumption, the improvements in Information and Communication Technology (ICT) field allowing remote monitoring and con

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Gutierrez, Lagos Luis Daniel. "Advanced voltage control for energy conservation in distribution networks." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/advanced-voltage-control-for-energy-conservation-in-distribution-networks(2718dcf1-f5db-45df-84e2-4890956ba8b1).html.

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The increasing awareness on the effect of carbon emissions in our planet has led to several countries to adopt targets for their reduction. One way of contributing to this aim is to use and distribute electricity more efficiently. In this context, Conservation Voltage Reduction (CVR), a well-known technique that takes advantage of the positive correlation between voltage and demand to reduce energy consumption, is gaining renewed interest. This technique saves energy by only reducing customer voltages, without relying on customer actions and, therefore, can be controlled by the Distribution Ne

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Poursharif, Goudarz. "Investigating the ability of smart electricity meters to provide accurate low voltage network information to the UK distribution network operators." Thesis, University of Sheffield, 2018. http://etheses.whiterose.ac.uk/20614/.

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This research presents a picture of the current status and the future developments of the LV electricity grid and the capabilities of the smart metering programme in the UK as well as investigating the major research trends and priorities in the field of Smart Grid. This work also extensively examines the literature on the crucial LV network performance indicators such as losses, voltage levels, and cable capacity percentages and the ways in which DNOs have been acquiring this knowledge as well the ways in which various LV network applications are carried out and rely on various sources of dat

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Lopes, Filipe. "The Use operator elitism in calibration diameter water distribution networks using transient data and genetic algorithm." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14672.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>One of the steps in the technical analysis of water supply systems are simulations of the conditions of equilibrium a distribution network. In order to estimate the parameters of a hydraulic network, from observed data hydraulic loads, there is developed a computational method. In general, the physical parameters of the network as unknown friction factors, the absolute roughness, diameter and the identification and quantification of leaks are unknown quantities. In this study, the focus will be on the identification of diameters

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MAZZA, ANDREA. "Innovative Approaches for Optimization of the Distribution System Operation." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2596760.

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The present work of thesis presents some innovative approaches aiming at analyzing and optimizing the distribution system. In the first part (composed of the Chapters 1–4), some innovative methods developed for distribution network reconfiguration, both in single objective framework and in multi- objective framework, are presented and applied. In particular, Chapter 1 shows the general problem of distribution network reconfigu- ration, while Chapter 2 presents the different types of Optimization Methods (OM), by focusing on their nature (deterministic or heuristic) and on the goal they have (s

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Arghandeh, Jouneghani Reza. "Distributed Energy Storage Systems: Microgrid Application, Market-Based Optimal Operation and Harmonic Analysis." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/50603.

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The need for modern electricity infrastructures and more capable grid components brings attention to distributed energy storage systems because of their bidirectional power flow capability. This dissertation focuses on three different aspects of distributed energy storage system applications in distribution networks. It starts with flywheel energy storage system modeling and analysis for application in microgrid facilities. Then, a market-based optimal controller is proposed to enhance the operational profit of distributed energy storage devices in distribution networks. Finally, impact of mul

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Ding, Ni. "Load models for operation and planning of electricity distribution networks with smart metering data." Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENT092/document.

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En 2010, ERDF (Electricité Réseau Distribution France) a entamé la mise en place du projet « Linky » dont l'objectif est d'installer 35 millions de compteurs intelligents en France. Ces compteurs permettront de collecter les données de consommation en « temps réel », avec lesquelles des modèles de charge plus précis pourront être envisagés. Dans ce contexte, cette thèse définit deux objectifs: la définition de modèles prédictifs de charge pour la conduite et la conception de modèles d'estimation de charge pour la planification. En ce qui concerne la conduite, nous avons développés deux modèles

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Neven, Kovački. "Operativno planiranje rekonfiguracije distributivnih mreža primenom višekriterijumske optimizacije." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=106883&source=NDLTD&language=en.

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U ovoj doktorskoj disertaciji razvijen je novi algoritam za operativno planiranje rekonfiguracije distributivnih mreža. Cilj ovog algoritma jeste određivanje skupa konfiguracija distributivnih mreža, čijim se uzastopnim primenama optimizuje njihov rad tokom određenog vremenskog perioda. U ovoj doktorskoj disertaciji predložen je novi algoritam za rešavanje navedenog problema, a koji je zasnovan na metodi Lagranžove relaksacije.<br>This PhD thesis proposes a new algorithm for the operation planning of thedistribution network reconfiguration. The aim of this algorithm is to determinethe set of t

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Pulazza, Giorgia <1993&gt. "Planning and flexible operation of storage systems in power grids: from transmission to distribution networks." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amsdottorato.unibo.it/10487/1/PHD_Thesis_GiorgiaPulazza.pdf.

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The first part of the thesis has been devoted to the transmission planning with high penetration of renewable energy sources. Both stationary and transportable battery energy storage (BES, BEST) systems have been considered in the planning model, so to obtain the optimal set of BES, BEST and transmission lines that minimizes the total cost in a power network. First, a coordinated expansion planning model with fixed transportation cost for BEST devices has been presented; then, the model has been extended to a planning formulation with a distance-dependent transportation cost for the BEST units

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Ami, Sumit Mazumder. "Power quality improvements in low voltage distribution networks containing distributed energy resources." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/81410/1/Sumit%20Mazumder_Ami_Thesis.pdf.

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In this thesis various schemes using custom power devices for power quality improvement in low voltage distribution network are studied. Customer operated distributed generators makes a typical network non-radial and affect the power quality. A scheme considering different algorithm of DSTATCOM is proposed for power circulation and islanded operation of the system. To compensate reactive power overflow and facilitate unity power factor, a UPQC is introduced. Stochastic analysis is carried out for different scenarios to get a comprehensive idea about a real life distribution network. Combined o

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Oberley, Mark J. "The operation and interaction of the Auxiliary Resonant Commutated Pole Converter in a shipboard DC power distribution network." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA326394.

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Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, December 1996.<br>Thesis advisor(s): John G. Ciezki. "December 1996." Includes bibliographical references (p. 185-186). Also available online.

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Munisamy-Doraisamy, Susila. "Benchmarking the performance of UK electricity distribution network operators : a study of quality, efficiency and productivity using data envelopment analysis." Thesis, University of Warwick, 2004. http://wrap.warwick.ac.uk/2635/.

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The aim of this thesis is twofold. The first is to develop a comprehensive methodology for assessing performance and then to apply it to the UK electricity distribution network operators (DNOs) to analyse the impact of the regulatory reforms and privatisation introduced in 1990-91 on their quality, efficiency and productivity developments. The models and methods developed will not only be useful in the electricity distribution context but also to other organisations that need to assess and monitor both their efficiency and quality. These objectives are realised through the use of the Data Enve

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Thaibah, Hilal. "Managing a Hybrid Oral Medication Distribution System in a Pediatric Hospital: A Machine Learning Approach." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1626356839363113.

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Quagliato, Giuliano Batagin. "Estudo de caso brasileiro sobre redes de distribuição." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258184.

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Orientador: Douglas Tacla<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo<br>Made available in DSpace on 2018-08-12T11:18:25Z (GMT). No. of bitstreams: 1 Quagliato_GiulianoBatagin_M.pdf: 1392096 bytes, checksum: 2348fe37c161006a95ff3803b0ad4412 (MD5) Previous issue date: 2009<br>Resumo: Atualmente, há uma grande quantidade de pesquisas realizadas para determinar o perfil de redes de distribuição em função de conceitos existentes na literatura. Há vários estudos disponíveis que apresentam modelos com base em variáveis que a

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Sabillón, Antúnez Carlos Francisco. "Mathematical optimization of unbalanced networks operation with smart grid devices." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/154075.

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Domes, František. "Výpočet ztrát v závislosti na konfiguraci distribuční sítě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221206.

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This master‘s thesis deals with the calculation of losses depending on the configuration of the distribution network. The first part focuses on the general theory regarding some used calculation methods of steady operation. The next part is theoreticly dedicated to the technical losses, possibilities of their influencing and their calculation. In the practical part is carried out the choice of calculation method of steady operation. This method is implicated into the proposed program in programming environment MATLAB.Furthermore, on the basis of a partial measurement in the distribution networ

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Skane, Ramon. "Modelling, simulation and analysis of pressure reducing valve operation in water distribution networks and their related greenhouse gas emissions." Thesis, Skane, Ramon (2020) Modelling, simulation and analysis of pressure reducing valve operation in water distribution networks and their related greenhouse gas emissions. Honours thesis, Murdoch University, 2020. https://researchrepository.murdoch.edu.au/id/eprint/62290/.

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This thesis explores the physical behaviour of industrial pressure reducing valves (PRVs) used around the world for effective water distribution and network pressure reduction. The mathematical models developed as part of this project showcase the steady state and dynamic behaviour of PRVs when changes are made to its control system or external variables within water distribution networks (WDNs) acting to disturb the PRV system (used to simulate water demand within the network). Analyses on the performance of the models to quantify any pressure setpoint offsets or low PRV head loss complicatio

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López, Claudio David. "Shortening time-series power flow simulations for cost-benefit analysis of LV network operation with PV feed-in." Thesis, Uppsala universitet, Elektricitetslära, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-242099.

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Time-series power flow simulations are consecutive power flow calculations on each time step of a set of load and generation profiles that represent the time horizon under which a network needs to be analyzed. These simulations are one of the fundamental tools to carry out cost-benefit analyses of grid planing and operation strategies in the presence of distributed energy resources, unfortunately, their execution time is quite substantial. In the specific case of cost-benefit analyses the execution time of time-series power flow simulations can easily become excessive, as typical time horizons

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Kim, Jinho D. "Centralized random backoff for collision free wireless local area networks." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31055.

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Over the past few decades, wireless local area networks (WLANs) have been widely deployed for data communication in indoor environments such as offices, houses, and airports. In order to fairly and efficiently use the unlicensed frequency band that Wi-Fi devices share, the devices follow a set of channel access rules, which is called a wireless medium access control (MAC) protocol. It is known that wireless devices following the 802.11 standard MAC protocol, i.e. the distributed coordination function (DCF), suffer from packet collisions when multiple nodes simultaneously transmit. This signifi

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46

Scheffler, Jörg Uwe. "Bestimmung der maximal zulässigen Netzanschlussleistung photovoltaischer Energiewandlungsanlagen in Wohnsiedlungsgebieten." Doctoral thesis, Universitätsbibliothek Chemnitz, 2002. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200201319.

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The future operation of public low voltage networks has to consider increased decentralised generation using photovoltaic systems for residential application. For utilities it is necessary to determine the maximum permissible installed power of residential photovoltaic systems in sections of the low-voltage network. For this purpose a method based on modelling low-voltage network structures, occurring loads and insolation situations is presented and demonstrated. The maximum permissible installed power of residential photovoltaic systems is fundamentally determined by the structure of the sett

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Dai, Pham Duc [Verfasser], Pu [Akademischer Betreuer] Li, Marc [Akademischer Betreuer] Steinbach, and Viêt Hùng [Akademischer Betreuer] Nguyen. "Optimization Approaches for Planning and Operation of Large-scale Water Distribution Networks / Pham Duc Dai. Betreuer: Pu Li. Gutachter: Marc Steinbach ; Viet Hung Nguyen." Ilmenau : Universitätsbibliothek Ilmenau, 2015. http://d-nb.info/1079840680/34.

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Vepřek, Tomáš. "Návrh rekonstrukce distribuční sítě 22 kV E.ON v zadané oblasti." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219078.

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The aim of this thesis is a modification of the distribution network (DS) of the city of Brno to ensure power supply in the required quantity and quality for end consumers. Calculation of steady - state operation of distribution network (DS) of Brno is performed in the programme PAS DAISY Off-Line v.4.00 Bison. On the basis of available data (dispatching scheme, load current of stem lines and reserved power of wholesale customers) we will analyze the steady-state of network. We will find out which of the 110/22 kV transformer stations, cable and overhead lines are overloaded and perform networ

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Silva, Luiz Fernando Moreira da. "Uma analise da logistica colaborativa na industria farmaceutica." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258185.

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Orientador: Douglas Tacla<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo<br>Made available in DSpace on 2018-08-15T15:02:49Z (GMT). No. of bitstreams: 1 Silva_LuizFernandoMoreirada_M.pdf: 1451507 bytes, checksum: 58e3a59b22897945f6af446c8a495907 (MD5) Previous issue date: 2010<br>Resumo: Esta dissertação objetiva discutir a situação atual da logística farmacêutica na Grande São Paulo e analisar uma alternativa para a distribuição de medicamentos destinados às farmácias, sob os aspectos estratégico, tático e operacional. E

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Zipf, Michael Markus [Verfasser], Dominik [Akademischer Betreuer] Möst, Dominik [Gutachter] Möst, and Udo [Gutachter] Buscher. "Economics of Ancillary Services for Electricity : Managing Uncertain Power Generation and Grid Operation in the Distribution Network / Michael Markus Zipf ; Gutachter: Dominik Möst, Udo Buscher ; Betreuer: Dominik Möst." Dresden : Technische Universität Dresden, 2021. http://d-nb.info/1236990536/34.

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