Academic literature on the topic 'Overhead line network'

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Journal articles on the topic "Overhead line network"

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Lazaropoulos, Athanasios G. "Wireless Sensor Network Design for Transmission Line Monitoring, Metering, and Controlling: Introducing Broadband over Power Lines-Enhanced Network Model (BPLeNM)." ISRN Power Engineering 2014 (June 4, 2014): 1–22. http://dx.doi.org/10.1155/2014/894628.

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This paper introduces the broadband over power lines-enhanced network model (BPLeNM) that is suitable for efficiently delivering the generated data of wireless sensor networks (WSNs) of overhead high-voltage (HV) power grids to the substations. BPLeNM exploits the high data rates of the already installed BPL networks across overhead HV grids. BPLeNM is compared against other two well-verified network models from the relevant literature: the linear network model (LNM) and the optimal arrangement network model (OANM). The contribution of this paper is threefold. First, the general mathematical framework that is necessary for describing WSNs of overhead HV grids is first presented. In detail, the general mathematical formulation of BPLeNM is proposed while the existing formulations of LNM and OANM are extended so as to deal with the general case of overhead HV grids. Based on these general mathematical formulations, the general expression of maximum delay time of the WSN data is determined for the three network models. Second, the three network models are studied and assessed for a plethora of case scenarios. Through these case scenarios, the impact of different lengths of overhead HV grids, different network arrangements, new communications technologies, variation of WSN density across overhead HV grids, and changes of generated WSN data rate on the maximum delay time is thoroughly examined. Third, to assess the performance and the feasibility of the previous network models, the feasibility probability (FP) is proposed. FP is a macroscopic metric that estimates how much practical and economically feasible is the selection of one of the previous three network models. The main conclusion of this paper is that BPLeNM defines a powerful, convenient, and schedulable network model for today’s and future’s overhead HV grids in the smart grid (SG) landscape.
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Yang, Zhiwang, Nikola Zivlak, Ming Xu, and Marko Ljubicic. "Study on overhead transmission line on-line monitoring technology." Thermal Science 20, suppl. 2 (2016): 383–91. http://dx.doi.org/10.2298/tsci151214024y.

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paper introduces a new idea for overhead transmission line online monitoring. The basis of the paper has been developed upon years of research conducted by power engineers, and a new advanced transmission line safe operation monitoring system is proposed successfully. Furthermore, we used artificial neural network(ANN) for diagnosis examples, to prove the feasibility and effectiveness of the advanced transmission line safe operation system.
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Dong, Ai Hua, Xin Lin Geng, Yi Yang, Ying Su, and Meng Yao Li. "Overhead Power Line Fault Positioning System." Applied Mechanics and Materials 329 (June 2013): 299–303. http://dx.doi.org/10.4028/www.scientific.net/amm.329.299.

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Aimed at the situations of the low accuracy of overhead line fault detection and the high cost of line fault information transmission with the aid of GSM correspondence network, this paper introduces overhead line fault detection and location system as the core of industrial computer. The combination of software and hardware, the methods of current rate of change and zero current detection are used, and so the accuracy of short circuit fault detection is improved. The features of ground phase voltage drop and the 5th harmonic current are integrated, and the accuracy of ground fault detection circuit is improved. Zigbee wireless communication technology is used to make into independent signal transmission system, which not only reduces the system's operating costs but also ensures the reliable transmission of signals. Taking Kingview 6.51 software as development platform, the monitoring program and display with many functions are designed. The system has been put into operation, running in good condition, and passed concluding and acceptance smoothly.
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wei, Song, Wang Yanfeng, and Wang shuanghu. "The Study on Lightning Disaster Risk Assessment Model of 10kV Overhead Line." MATEC Web of Conferences 173 (2018): 01008. http://dx.doi.org/10.1051/matecconf/201817301008.

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Taking all kinds of affecting factors into account, the 10kV overhead line of distribution network lighting disaster risk is studied. Historical hidden fault, line equipment, topography, climatic conditions and social impact are selected as key factors of damage and the impact. The correlation among the factors and the weight ratio of each factor were studied. The risk assessment model of 10kV distribution network overhead line was established by multi-factor, hierarchical classification assessment method. It solves the evaluation index insufficient problem of the single factor as the evaluation condition, and provides the theoretical research and practical support to the 10kV overhead line reconstruction and the lightning prevention. The reliability and effectiveness of the research results have been proved by practical application in distribution network operation and maintenance control.
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Fan, Fei, Gongping WU, Man Wang, Qi Cao, and Song Yang. "Robot Delay-Tolerant Sensor Network for Overhead Transmission Line Monitoring." Applied Sciences 8, no. 6 (May 23, 2018): 847. http://dx.doi.org/10.3390/app8060847.

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Vintan, Maria, and Adrian Buta. "Ground fault distribution on overhead transmission lines." Facta universitatis - series: Electronics and Energetics 19, no. 1 (2006): 71–84. http://dx.doi.org/10.2298/fuee0601071v.

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When a ground fault occurs on an overhead transmission line in a power network with grounded neutral, the fault current returns to the grounded neutral through the tower structures, ground return paths and ground wires. This paper presents an analytical method in order to evaluate the ground fault current distribution in an effectively grounded power network. The effect of soil resistivity, ground resistance of towers and power line configuration, on the magnitude of return currents, has been examined.
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Jin, Xu, Fudong Cai, Mengxia Wang, Yang Sun, and Shengyuan Zhou. "Probabilistic prediction for the ampacity of overhead lines using Quantile Regression Neural Network." E3S Web of Conferences 185 (2020): 02022. http://dx.doi.org/10.1051/e3sconf/202018502022.

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The ampacity of overhead transmission lines play a key role in power system planning and control. Due to the volatility of the meteorological elements, the ampacity of an overhead line is timevarying. In order to fully utilize the transfer capability of overhead transmission lines, it is necessary to provide system operators with accurate probabilistic prediction results of the ampacity. In this paper, a method based on the Quantile Regression Neural Network (QRNN) is proposed to improve the performance of the probabilistic prediction of the ampacity. The QRNN-based method uses a nonlinear model to comprehensively model the impacts of historical meteorological data and historical ampacity data on the ampacity at predictive time period. Numerical simulations based on the actual meteorological data around an overhead line verify the effectiveness of the proposed method.
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Jie, Xia, and Rui Jun Jing. "On-Line Decrypting: A Homomorphic Realization for Network Coding." Applied Mechanics and Materials 543-547 (March 2014): 2728–32. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.2728.

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The paper studies the problem of communicating message secretly in the network performing random linear network coding, where the network internal nodes are allowed to randomly mix the incoming packets and then forward. The paper proposes HoNet, an end-to-end homomorphic encryption that is theoretically proved secure against network adversaries who can fully access the information of network coding schemes and eavesdrop every network transmission. A direct payoff of homomorphic encryption is that network nodes could on-line decrypt (or re-encrypt) the mixed ciphertexts, which significantly increases network throughput in scenarios such as peer-to-peer networks and satellite systems. In particular, HoNet addresses the two main challenges faced by the traditional homomorphic encryption schemes for point-to-point transmissions:high computational overhead and throughput loss-rate. To be precise, HoNet possesses linear time nodes complexity and asymptotically zero loss-rate.
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He, Yongping, Xiaomin Liu, Kai Yang, Shangke Liu, and Yaxuan Chen. "Research on Overhead Line Cost Prediction Based on Index Construction." E3S Web of Conferences 136 (2019): 01014. http://dx.doi.org/10.1051/e3sconf/201913601014.

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In order to meet the growing demand of the society for electric power, the construction of electric power infrastructure is constantly carried out. However, investment in construction and cost control are particularly important. Because of its own characteristics, overhead line project cost control management is difficult to carry out. According to the characteristics of overhead line engineering, this paper constructs an overhead line engineering cost index system composed of 24 indexes including voltage grade from three aspects: technical conditions, engineering quantity attribute and cost attribute. Combining with the actual data of the completed project, the BP neural network algorithm is used to predict the static investment of the project. The accuracy of the prediction model reaches 99.9%. This verifies the rationality and comprehensiveness of the overhead line project cost index system constructed in this paper, and provides reliable guidance for the overhead line project cost management.
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Szultka, Agata, Seweryn Szultka, Stanislaw Czapp, and Ryszard Zajczyk. "Voltage Variations and Their Reduction in a Rural Low-Voltage Network with PV Sources of Energy." Electronics 10, no. 14 (July 7, 2021): 1620. http://dx.doi.org/10.3390/electronics10141620.

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Renewable sources of energy (RES), especially photovoltaic (PV) micro-sources, are very popular in many countries. This way of clean power production is applied on a wide scale in Poland as well. The Polish legal regulations and tariffs specify that every prosumer in a low-voltage network may feed this network with a power not higher than the maximum declared consumed power. In power networks with RES, the voltage level changes significantly along the power line and depends on the actually generated as well as consumed power by particular prosumers. There are cases that prosumers connected to this line cannot produce and inject the full permissible power from PV sources due to the level of a voltage higher than the technically acceptable value. In consequence, it leads to the lack of profitability of investments in installations with PV sources. In this paper, voltage variations in a real rural low-voltage network with PV micro-sources are described. The possible two general solutions of voltage levels improvement are discussed—increase in the cross-sectional area of the bare conductors in the existing overhead line as well as the replacement of the overhead line with a cable line. The recommended solution for the analyzed network, giving the best reduction of voltage variations and acceptable cost, is underlined. Such a recommendation can also be utilized in other rural networks.
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Dissertations / Theses on the topic "Overhead line network"

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Han, Junyu. "Fault location on mixed overhead line and cable network." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/fault-location-on-mixed-overhead-line-and-cable-network(1a911a42-ddfa-4592-8365-badc8d5c45f3).html.

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Society is increasingly concerned about the environmental impact of energy systems, and prefers to locate power lines underground. In future, certain socially/environmentally sensitive overhead transmission feeders will need to include underground cable sections. Fault location, especially when using travelling waves, become complicated when the combined transmission line includes a number of discontinuities, such as junction points, teed points and fault points. Consequently, a diverse range of fault locators were developed in this thesis, and the performance of the proposed fault locators investigated. For a combined transmission line (CTL), consisting of one or more overhead line sections and one or more underground cable sections, a hybrid fault location scheme is proposed. This utilises the robustness of an impedance based distance algorithm and the accuracy, but stability concerns, of a travelling wave based fault locator, to determine the faulted section. The distance algorithm can determine the approximate fault location, but if the fault is located near an “underground-overhead” junction point, the accuracy is not sufficient to decide whether the fault is located on the overhead or the underground section. This thesis proposes utilizing a single end travelling wave fault locator to improve the accuracy of the fault location decision. The single end travelling wave fault locator can determine the fault section according to the permutation of the polarity of the “special surges”, which is especially important when the fault is close to a junction point. However, this single end fault locator fails in certain “blind” areas, wand these require the use of a distance relay to help determine fault section. Simulation results demonstrated that this hybrid fault locator can reliably determine which section of the feeder is faulty. For all types of CTL, including teed networks, the multiple-end travelling wave fault locator, utilising the arrival time at the feeder ends of the first fault instigated surges, can estimate the fault location. One of the main features of the proposed fault locator is the classification of the time difference between the arrivals of a fault instigated surge at the feeder ends as standard values, when the fault is located at each of the junction points or teed points. Comparing the time differences measured during an actual fault with these standard values allows the faulted feeder section to be estimated. The simulation results show this multiple-end travelling wave fault locator is highly reliable and suitable for application on combined overhead and underground transmission lines.
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Fonseca, Marco Filipe Matos da. "Integrating wind generation in the distribution network." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/8187.

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Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do Grau de Mestre em Energias Renováveis – Conversão Eléctrica e Utilização Sustentáveis
One of the current challenges the electricity grid has is to actively connect future generation to its network without the need to fully reinforce it. This dissertation will study the use of dynamic ratings on overhead lines to increase its capacity and thus defer major investment on infrastructure reinforcement. The amount of current an overhead line can withstand in a given time is defined by the distance towards the ground, which is proportional to the conductor´s temperature, which is given by a static rating stated in the P27 standard – “Current Rating Guide for High Voltage Overhead Lines Operating in the UK Distribution System”. This rating changes from season to season and depends on specific values for ambient temperature, wind speed, wind direction and the probability that in a year the conductor exceeds its design temperature. This standard is seen as being very restrictive and a limiting factor on overhead line capacity for both future generation connections and demand. Wind speed and direction are extremely important on the cooling of overhead lines and in times of strong winds the conductor cools down, allowing extra amount of current to flow through it. By using real time weather data, it´s possible to obtain the maximum current that can flow in an overhead line for a specific operating temperature and assess the amount of headroom possible given by the difference between the static ratings and the new dynamic ratings is assessed. A view on the extra amount of energy produced, as well as CO2 emission savings and profit will also be presented, giving a practical result by applying dynamic ratings.
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Yang, Yi. "Power line sensor networks for enhancing power line reliability and utilization." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41087.

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Over the last several decades, electricity consumption and generation have continually grown. Investment in the Transmission and Distribution (T&D) infrastructure has been minimal and it has become increasingly difficult and expensive to permit and build new power lines. At the same time, a growing increase in the penetration of renewable energy resources is causing an unprecedented level of dynamics on the grid. Consequently, the power grid is congested and under stress. To compound the situation, the utilities do not possess detailed information on the status and operating margins on their assets in order to use them optimally. The task of monitoring asset status and optimizing asset utilization for the electric power industry seems particularly challenging, given millions of assets and hundreds of thousands of miles of power lines distributed geographically over millions of square miles. The lack of situational awareness compromises system reliability, and raises the possibility of power outages and even cascading blackouts. To address this problem, a conceptual Power Line Sensor Network (PLSN) is proposed in this research. The main objective of this research is to develop a distributed PLSN to provide continuous on-line monitoring of the geographically dispersed power grid by using hundreds of thousands of low-cost, autonomous, smart, and communication-enabled Power Line Sensor (PLS) modules thus to improve the utilization and reliability of the existing power system. The proposed PLSN specifically targets the use of passive sensing techniques, focusing on monitoring the real-time dynamic capacity of a specific span of a power line under present weather conditions by using computational intelligence technologies. An ancillary function is to detect the presence of incipient failures along overhead power lines via monitoring and characterizing the electromagnetic fields around overhead conductors. This research integrates detailed modeling of the power lines and the physical manifestations of the parameters being sensed, with pattern recognition technologies. Key issues of this research also include design of a prototype PLS module with integrated sensing, power and communication functions, and validation of the Wireless Sensor Network (WSN) technology integrated to this proposed PLSN.
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Nilsson, Adam. "Underlag för prioritering och kostnadsberäkning vid reinvestering i luftledningsnät : En fallstudie på Sinntorp, ett av Ellevios besiktningsområden." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-280883.

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This thesis considers how an assessment method for reinvestments in the distribution grid can be designed and implemented. The assessment method was created to give long-term estimations of the amount overhead lines that could be substituted with underground cables and how to prioritize between different areas. The regulation of power grid companies was reviewed to highlight important factors for profitable reinvestments. The assessment method was implemented for overhead lines in Ellevio´s distribution grid using the database program FME and validated against real reinvestment decisions in a case study area called Sinntorp. The resulting reinvestment proposals mainly consist of replacing older grid sections and sections where expensive maintenance is planned in the future. The script show similar results as real reinvestment decisions but small differences are noticed related to the script’s hard focus on older grid sections. The script has potential to be used on Ellevio´s entire overhead line network but this requires work to complete essential data. Further validation on new areas are also desired to see if results are reasonable and if the script can be developed to consider more reinvestment factors.
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Řehoř, Jiří. "Návrh rozvoje distribuční sítě 22 kV E.ON v zadané oblasti." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219400.

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The aim of this work is the reconstruction and development of the distribution network of DS to ensure electricity supply in the required quality to existing customers and new customers connecting to the planned industrial zone Šlapanice. The first part deals with the inclusion of a distribution network in power system, its distribution and composition. Subsequently, the work deals with the description of the management of distribution networks, cable and outdoor leadership and their parameters. It also contains guidelines for the design of high voltage networks. The end of the first part is devoted to calculating the steady operation of the network. In the second part, the proposed project using the PAS DAISY Off-line v 4.00 Bizon. Based on the available evidence is developed steady state operation. We found that lines are overloaded and need to be strengthened with regard to the development of industrial zones and adjusting the network to ensure safe and reliable operation. The conclusion focuses on the economic evaluation of proposed alternatives.
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Chromík, Aleš. "Vyvedení výkonu z rozvodny 110/22 kV Moravany u Brna." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220293.

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The aim of this Master’s thesis is the design and reconstruction of the high voltage distribution network for the company E. ON with focus on calculation of the stabilized operation and on the planning of new cable taps from the transformer substation Moravany u Brna. The first part of the theoretical analysis of the work deals with the inclusion of the distribution network into the power system and with principles of development and construction of high voltage networks. The second part includes a general calculation of stabilized operation of the power distribution network and a familiarization with the program PAS Off - Line Bison 4.0. The practical part of the thesis is focused on the calculation of the stabilized operation at the current state of transformer substation Moravany u Brna using the PAS Off - Line Bizon 4.0 V programme. This part also contains the design of six new cable lines which are needed to strengthen the power distribution in the southern part of the city Brno. The closing part of this chapter constitutes of a outdoor and indoor cable line renovation. These cables are connected to the transformer substation Moravany u Brna and a calculation of stabilized operation is also included in this part.
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Račuch, Marek. "Analýza a návrh náhrady konkrétního venkovního vedení distribuční sítě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-319302.

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The diploma thesis deals with the issue of the reconstruction of outdoor cables of low voltage distribution network in exchange for the cable line. It analyzes the important factors which are necessary for the preparation of the project documentation for the issue of the territorial consent. The thesis is divided into 4 main chapters. After the first chapter there is introduced chapter 2, which shows the differences between cable and outdoor cables with their advantages and disadvantages. Chapter 3 deals with the guiding principles for low-voltage cable design and the types of equipment needed for the proper operation of a particular distribution network while respecting the requirements of valid PNEs and ČSNs. Chapter 4 explains the chronology of the process leading to the formulation of a basic technical proposal, which is further addressed in Chapter 5, which deals with the complete formulation of the project documentation for the issue of territorial consent.
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Novák, Vojtěch. "Návrh rekonstrukce distribuční sítě v dané lokalitě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217823.

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This diploma thesis is concerned with reconstruction of distribution network in Hruba Vrbka. The diploma thesis is divided in two parts. For better understanding to this issue, the first theoretical part is shortly dedicated to the history of electrical power system, to the several types of distribution network of low voltage and high voltage and their utilization in the area, considering the reliability and the quality of delivery of the electric energy. In this thesis there is mentioned division of distribution grids according to placing of cable lines, according to voltage and according to type of grid connection. Next part of this work is dedicated to the description of overhead lines and cable lines and their characteristics. For the proper concept of the grid we should know some characteristics of the electric line’s proposal: mechanical strength, warming, voltage drop, efficiency, degree of safety and provision of delivery. In the end of the theoretical part there are described methods for calculation of grid’s steady state as a linear task and also non-linear task, elimination of the balancing node, the iterative method, the reduction of external power take-off nodes and the solution of the steady state of the network through the direct current model. The second part of the diploma thesis is concerned with the calculation of the steady state in the village Hruba Vrbka. In this part is also described the KASI program which was used for the calculation of the grid’s steady state. Firstly low voltage grid’s balance in Hruba Vrbka was found out and evaluated and then there were proposed some solutions of the reconstruction for the grid improving. The suggested options of the reconstruction are considered from technical and economical point of view and the best solution is chosen. For this solution there is suggested the protection through program SICHR 9. In the end of this diploma thesis there is checked the load of the high voltage line.
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Šoustal, Petr. "Ochrany venkovních vedení vn a jejich koordinace s automatizovanými úsečníky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217819.

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The aim of this Master’s Thesis is to describe protections for overhead lines in distribution networks. Here are described requirements for the protection and the basic protections. Protections are divided according to their protective function. For each protection is given its use and its power plans. It is stated in the work setting of protection in the real network. On this network is simulated place with short-circuit and described the action of protection. The work also deals with the coordination of protection with automatic circuit breakers. This chapter shows that, given the selectivity is not possible to deploy two or more reclosers (remotely-operated switches) to the core network management. The next chapter describes two representatives reclosers available on the Czech market OSM 27 and GVR 27. Chapter describes and compares their performance characteristics. Conclusion the work includes a proposal protected the lead in incorporating automatic circuit breakers (remotely operated circuit breakers and reclosers). The proposal is based on two different levels of annual number of interruptions and duration of annual general interruption of electricity supply. For these levels the company EGÚ Brno, a.s. proposed several variants of the use of remote-controlled in terms of reducing the cost of the penalty. Our task was to choose a variant that would be applicable in the real network. Reducing costs is feasible only in the limits Ln = 6 failures / year and Lt = 720 min / year, where the selected option No. 4. The limits Ln = 8 failures / year and Lt = 1,080 min / year, not in the real network may no option in terms of selectivity.
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Makhkamova, Irina. "Numerical investigations of the thermal state of overhead lines and underground cables in distribution networks." Thesis, Durham University, 2011. http://etheses.dur.ac.uk/866/.

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As part of extensive activities on the reduction of CO2 emissions, a rapid expansion of power generation using new more fuel efficient technologies (large, medium and embedded scale with combined heat and power (CHP) projects) and renewable energy (wind, biomass, solar PV) is currently taking place in numerous European countries, including the UK. The research presented in this thesis is a part of a UK government funded project, which aims to find answers to how to accommodate increased renewable energy into the distribution network. Current ratings, which are limited by the temperature of the conductors used in the distribution network, are based on worst case scenario conditions and are conservative. The temperature limits can be lifted if one takes into consideration the dynamic changes in the surrounding environmental conditions of the conductors. Implementation of real-time thermal rating of existing power systems could result in greater installed capacities of distributed generation (DG). This research aims to provide new insights into the thermal state of overhead line conductors (OHL) and underground cables (UGC) by using Computational Fluid Dynamic methods. An algorithm consists of building the geometry of the calculation domain, meshing, choosing a model, inputting initial conditions, initiation of the calculation, and analysing results. A part of the UK power system was chosen by Scottish Power Energy Networks for monitoring essential data of OHL conductors in order to validate results of the temperatures of the conductors.
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Books on the topic "Overhead line network"

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Wayne, Beaty H., ed. Handbook of electric power calculations. 3rd ed. New York: McGraw-Hill, 2001.

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Beaty, H. Wayne. Handbook of Electric Power Calculations. McGraw-Hill Professional, 2000.

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Beaty, H. Wayne. Handbook of Electric Power Calculations. 3rd ed. McGraw-Hill Professional, 2000.

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Book chapters on the topic "Overhead line network"

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Zhou, Jun, Hanliang Wang, Yueguang Yang, and Jiangjun Ruan. "Cost Forecast of Overhead Transmission Line Based on BP Neural Network." In Advances in Intelligent and Soft Computing, 433–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27334-6_52.

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Senderovich, Gennadiy A., Artur O. Zaporozhets, Oleg G. Gryb, Ihor T. Karpaliuk, Sergiy V. Shvets, and Natalia V. Rudevich. "Improving Methods for One-Sided Determination of the Location of Damage of Overhead Power Lines in Networks with Effectively Grounded Neutral Based on UAVs." In Control of Overhead Power Lines with Unmanned Aerial Vehicles (UAVs), 9–34. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69752-5_2.

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Vujošević, Snežana, and Saša Mujović. "Application of EMD and STFT Methods in Analysis of Energization of an Unloaded Overhead Line Under Different Operating Conditions." In Lecture Notes in Networks and Systems, 349–62. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71321-2_33.

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Xie, Baiming, Chi Zhang, Qing-wu Gong, Koyamada Koji, Hua-rong Zeng, Li-jin Zhao, Hu Qiao, and Liang Huang. "Icing Thickness Prediction of Overhead Power Transmission Lines Using Parallel Coordinates and Convolutional Neural Networks." In Advances in Intelligent Systems and Computing, 255–67. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91008-6_26.

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Tan, Hwee Xian, and Winston K. G. Seah. "Limiting Control Overheads Based on Link Stability for Improved Performance in Mobile Ad Hoc Networks." In Lecture Notes in Computer Science, 258–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11424505_25.

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Jinwala, Devesh, Dhiren Patel, and Kankar Dasgupta. "Optimizing the Block Cipher and Modes of Operations Overhead at the Link Layer Security Framework in the Wireless Sensor Networks." In Information Systems Security, 258–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-89862-7_22.

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Timčenko, Valentina V. "Cloud-Based Dynamic Line Rating." In Cyber Security of Industrial Control Systems in the Future Internet Environment, 295–312. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2910-2.ch014.

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Introduction of the Dynamic Line Rating (DLR) concept has an important role in implementing smart grids in the power utility's transmission network. DLR assumes real-time control of the overhead transmission line, based on the continuous evaluation of the actual thermal and other operating conditions, and further estimation of the maximum transmission line's load and other relevant parameters that determine operational limitations. This chapter presents cloud-based DLR systems in terms of architecture, cloud services, and cyber security issues. DLR systems are explored with regards to cloud computing in industry, applicable cloud services and infrastructures, and communication system's performance. Security and privacy of cloud-based DLR systems have been addressed in terms of public and private services. A secure hybrid cloud-based architecture to support DLR is proposed.
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Afifi, Walaa Abd el aal, Hesham Ahmed Hefny, Nagy Ramadan Darwish, and Imane Fahmy. "Relative Position Estimation in Vehicle Ad-Hoc Network." In IoT and Cloud Computing Advancements in Vehicular Ad-Hoc Networks, 48–83. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2570-8.ch003.

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Position is a vital element for ITS applications. Its accuracy helps to deliver services quickly to drivers to increase their satisfaction. GPS is a well-known position system but it suffers from multipath effect and non-line of sight in tunnel environments. Relative Position or sometimes called cooperative localization is an alternative position estimation. It utilizes different forms of v2x communication to exchange position, distance, direction, and velocity parameters. It will benefit in collecting a large amount of data to increase the accuracy of position estimation. However, the dependency of radio range communication methods has drawbacks such as poor-received signal, multipath, lose packets, delay, and overhead communication that will have inverse impact on position accuracy. In addition, safety applications require fewer seconds to make quick response. This chapter provides the latest related papers, the state art of radio range, the well-known localization algorithms, and current challenges and future direction.
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Daci, Genti, and Rezarta Jaupi. "IP Layer Client Puzzles." In Enterprise Business Modeling, Optimization Techniques, and Flexible Information Systems, 14–25. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-3946-1.ch002.

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It is very common today that many business models are based on offering on-line services. Profitability and efficiency of this business model relies on a secure and undisturbed Internet infrastructure. Unfortunately, services offered on Internet infrastructure, being an Open and yet untrusted network, are very often targets of Denial-of-Service and Distributed Denial-of-Service attacks. These attacks are today a serious problem for on-line services offered by many business models. Preventing or minimizing DoS and DDoS is a difficult task which could serve to many on-line service offering business models to provide quality services to their clients. The main objective of this chapter is to present the Client Puzzle mechanism as a new method designed to defend business networks and their on-line services from these attacks. By using a client puzzle protocol on the IP level, the client is forced to solve a cryptographic puzzle before it can request any operation from a server, thus creating computational efforts and delays to illegitimate attackers and minimizing their attack effects on services. In this chapter, the authors show that chained puzzle protocol reduces the network and insfrastructure overhead because the servers do not have to generate puzzles on a per-packet basis. In addition, the chapter analyzes the effectiveness and some limitations of chained puzzles method with regards to minimizing DDoS attacks and outlines a general approach for addressing the identified limitations. At the last part, the authors propose a solution based on the general principle that under attack legitimate clients should be willing to experience some degradation in their performance in order to obtain the requested service.
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Luo, Song, Yalin E. Sagduyu, and Jason H. Li. "Scented Node Protocol for MANET Routing." In Biologically Inspired Networking and Sensing, 242–67. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-61350-092-7.ch013.

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Ant Colony Optimization (ACO) for biologically inspired networking introduces performance gains over classical routing solutions for Mobile Ad Hoc Networks (MANETs). However, the current ACO protocols involve significant amount of overhead and do not fully reflect the wireless interference effects in routing decisions. In ant routing, sources send out ant-based control packets for route discovery and path maintenance. Destinations can assist ant packets by disseminating scent messages to provide better guidance for route discovery and thus effectively reduce the protocol overhead. For that purpose, Scented Node Protocol (SNP) is introduced for interference-aware routing with novel scent diffusion and reinforcement mechanisms. The wireless link rates are measured by identifying the node pairs that are the most impacted by wireless interference, and network flows are routed to avoid severe interference effects among concurrent wireless transmissions. The throughput and overhead performance of SNP is evaluated through extensive realistic simulations for dynamic MANET environment. The resulting amount of overhead for scent and ant packets is also evaluated through the asymptotic analysis of scaling laws, as the network size grows, and through the dynamic analysis of the finite overhead constraint, by discussing the possible effects of local network coding on scent dissemination between neighbor nodes. Our results verify the throughput and overhead gains of biologically inspired SNP in wireless networks over the existing ACO and MANET routing protocols.
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Conference papers on the topic "Overhead line network"

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Hensman, G. "What do the distribution network operators need from lightning protection policies? - How Yorkshire Electricity approaches the issue." In IEE Seminar Lightning Protection for Overhead Line Systems. IEE, 2000. http://dx.doi.org/10.1049/ic:20000641.

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Liu, Pai, Zhen Shen, Wei Xu, Yijie Dong, Yi Li, and Yong Yang. "Research on lightning protection of distribution network overhead insulated line." In 2014 China International Conference on Electricity Distribution (CICED). IEEE, 2014. http://dx.doi.org/10.1109/ciced.2014.6991880.

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Ouyan Jiankun and Zhou Churui. "Overhead line monitoring model based on the long-distance transmission network." In 2013 8th International Conference on Computer Science & Education (ICCSE). IEEE, 2013. http://dx.doi.org/10.1109/iccse.2013.6553887.

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Lin, Yong, Guanglin Cai, Jiajia Huan, Gehao Sheng, and Xiuchen Jiang. "Carrying capacity prediction of overhead transmission line based on neural network." In International Conference of Information Science and Management Engineering. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/isme20140141.

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Xie, Jiangjian, Yi Wang, and Tingting Lu. "Overhead Contact System On-Line Monitor Technology Based on Wireless Sensor Network." In 2011 Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2011. http://dx.doi.org/10.1109/appeec.2011.5747737.

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Yi Yang, R. Harley, D. Divan, and T. Habetler. "Adaptive Echo State Network to maximize overhead power line dynamic thermal rating." In 2009 IEEE Energy Conversion Congress and Exposition. ECCE 2009. IEEE, 2009. http://dx.doi.org/10.1109/ecce.2009.5316095.

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Bingyan Xu, Long Chen, Huiqing Lu, and Canzhang Chen. "Design and application of overhead line intelligent management scheme for distribution network." In 2012 China International Conference on Electricity Distribution (CICED). IEEE, 2012. http://dx.doi.org/10.1109/ciced.2012.6508415.

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Shih, Wei-Hsiang, Kun-Ming Yu, and Ching-Lin Lee. "An overhead contact line monitoring system based on wireless sensor network technology." In 2017 Sixth International Conference on Future-Generation Communication Technologies (FGCT). IEEE, 2017. http://dx.doi.org/10.1109/fgct.2017.8103734.

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Nag, Ankita, and Anamika Yadav. "Fault classification using Artificial Neural Network in combined underground cable and overhead line." In 2016 IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES). IEEE, 2016. http://dx.doi.org/10.1109/icpeices.2016.7853664.

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Zhou, Lijun, Ye Tian, Weijiang Chen, Nianwen Xiang, Yuanpeng Liang, Kai Bian, and Zhong Fu. "Partial Discharge Characteristic Analysis of Distribution Network Overhead Line Based on Remote Detection." In 2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE). IEEE, 2020. http://dx.doi.org/10.1109/ichve49031.2020.9279412.

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