Relevant bibliographies by topics / Electric distribution feeders

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Electric distribution feeders'

Author: Grafiati
Published: 19 February 2023

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Journal articles on the topic "Electric distribution feeders"

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Goh, Hui Hwang, Sy yi Sim, Dahir Khere Diblawe, Mortar Mohamed Ali, Chin Wan Ling, Qing Shi Chua, and Kai Chen Goh. "Energy Power Plant in Electric Power Distribution Systems Equipping With Distance Protection." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 1 (October 1, 2017): 192. http://dx.doi.org/10.11591/ijeecs.v8.i1.pp192-198.

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<p>This paper suggests the theory of distance protection criteria in power distribution systems for power plant generation. Multi-developed countries have energy power plants that placed in remote areas which are far from the grid line. Hence, they should be coupled to the low power transportation systems necessarily. While higher-rating relays are adopted to preserve feeders at power substations, fuses are merely obtainable outside on feeder channel. The safe system process, space protection is dispatched to save feeders. In this review, feeders with distance relays are equipped, together with over-current protection relays and fuses. Energy power plant having distance protection system is designed the implemented system was a 6-MW unit of compressed power energy reproduction. The sample feeder was shortened to be equal four-bus experiment feeder for transmitting resolution. The fault currents have chances adopted to form protecting regions of distance relays. Protection of the power line through the designed power plants for distance relaying can decrease problem in relay location because of the impedance-based location of the distance relay. </p>
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Jones, C. Birk, Matthew Lave, William Vining, and Brooke Marshall Garcia. "Uncontrolled Electric Vehicle Charging Impacts on Distribution Electric Power Systems with Primarily Residential, Commercial or Industrial Loads." Energies 14, no. 6 (March 18, 2021): 1688. http://dx.doi.org/10.3390/en14061688.

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An increase in Electric Vehicles (EV) will result in higher demands on the distribution electric power systems (EPS) which may result in thermal line overloading and low voltage violations. To understand the impact, this work simulates two EV charging scenarios (home- and work-dominant) under potential 2030 EV adoption levels on 10 actual distribution feeders that support residential, commercial, and industrial loads. The simulations include actual driving patterns of existing (non-EV) vehicles taken from global positioning system (GPS) data. The GPS driving behaviors, which explain the spatial and temporal EV charging demands, provide information on each vehicles travel distance, dwell locations, and dwell durations. Then, the EPS simulations incorporate the EV charging demands to calculate the power flow across the feeder. Simulation results show that voltage impacts are modest (less than 0.01 p.u.), likely due to robust feeder designs and the models only represent the high-voltage (“primary”) system components. Line loading impacts are more noticeable, with a maximum increase of about 15%. Additionally, the feeder peak load times experience a slight shift for residential and mixed feeders (≈1 h), not at all for the industrial, and 8 h for the commercial feeder.
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Serrano-Guerrero, X., B. Marín-Toro, C. Ochoa-Malhaber, and A. Barragán-Escandón. "Impact of the incorporation of photovoltaics distributed generation in electric distribution grids in Ecuador." Renewable Energy and Power Quality Journal 20 (September 2022): 387–92. http://dx.doi.org/10.24084/repqj20.319.

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The distributed generation (DG) allows electricity production to be closer to consumers, relieving the burden on distribution grid feeders. Interest in DG has increased in recent years due to its close relationship with smart grids and the development of carbon-free generation technologies. The Ciudad del Sol feeder in the city of Machala in Ecuador is one of the feeders with the highest electricity demand. This study evaluates the incorporation of DG in several consumers connected to this feeder. Depending on the range of energy consumption of each customer, different PV systems are proposed to meet their demands. The results of the study show that the installation of PV generation systems allows considerable savings on the electricity bill. In addition, the reduction of grid demand reduces Joule effect losses and improves voltage profiles. The results suggest that the massive incorporation of correctly dimensioned PV systems does not affect the operating conditions of a distribution power grid.
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Nta, Eric Effiong. "Evaluation of Electric Power Losses on 33/11 kV Distribution Feeder Networks in Uyo Urban, Nigeria Using Loss Factor Approach." European Journal of Electrical Engineering and Computer Science 6, no. 6 (November 21, 2022): 39–46. http://dx.doi.org/10.24018/ejece.2022.6.6.457.

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No matter how carefully a power system is designed, grid inefficiencies or load losses would happen, causing power unbalance between distribution and major load centers. It is therefore fundamental to clearly determine and identify electric power system losses for network improvement because of their financial-economic value to distribution companies and consumers. In this work, relevant data including monthly loading, feeder route length, and cross-sectional area of four 11 kV feeders namely, Aka, Ibrahim Babangida, Udo Udoma, and Idongesit Nkanga secretariat-dedicated feeders were obtained from the Port Harcourt Electricity Distribution (PHED) company technical office, Uyo, Nigeria for four years (January 2018 to December 2021) for the 33/11 kV Akwa Ibom State Secretariat Injection Substation and distribution feeder circuits. Average load, maximum load, load factor, loss factor, power losses in the feeders and total power loss in the system were computed and the results which were shown graphically revealed grid inefficiencies and power imbalance or losses which increased slightly on a yearly basis. The losses are due to heat dissipation, lack of maintenance of the power system components, transformer overloading, copper losses, core losses, lengthy feeder routes, and location/aging of the transformers. Suggestions were made in order to reduce further losses in the network.
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Kersting, W. H., and W. H. Phillips. "Modeling and analysis of rural electric distribution feeders." IEEE Transactions on Industry Applications 28, no. 4 (1992): 767–73. http://dx.doi.org/10.1109/28.148441.

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Adriani, Adriani. "Analisis Faktor Penurunan Gangguan Saluran Udara Tegangan Menengah (SUTM) Pada Penyulang Parangbanoa." VERTEX ELEKTRO 13, no. 1 (February 1, 2021): 1–8. http://dx.doi.org/10.26618/jte.v13i1.4818.

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The reliability of the electric power system is one of the most important things to pay attention to in order to maintain the performance of the three main pillars of PT. PLN (Persero). The problem that often occurs in the distribution sector is interference with feeders. The purpose of this study was to determine the causes of trip feeder disturbances in parangbanoa feeders at PT. PLN (Persero) ULP Kalebajeng. The problem that often occurs in the distribution sector is feeder disturbance. Based on the results of the ArcGIS (Geometry Informindo System) output, the potential causes of trip disruption in the parangbanua feeders are trees and plants that affect SUTM, animals on the network, damaged JTM components, broken insulators, and less tight connections causing hot temperatures. Maintenance activities carried out are divided into integrated maintenance. saving obtained is 7,418 kWh / week, and the gain obtained can reach Rp. 10,882,206, - / week, while the benefits are a reduction in the number of interruption of feeder trips.
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Teera-achariyakul, Noppada, and Dulpichet Rerkpreedapong. "Optimal Preventive Maintenance Planning for Electric Power Distribution Systems Using Failure Rates and Game Theory." Energies 15, no. 14 (July 17, 2022): 5172. http://dx.doi.org/10.3390/en15145172.

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Current electric utilities must achieve reliability enhancement of considerable distribution feeders with an economical budget. Thus, optimal preventive maintenance planning is required to balance the benefits and costs of maintenance programs. In this research, the proposed method determines the time-varying failure rate of each feeder to evaluate the likelihood of future interruptions. Meanwhile, the consequences of feeder interruptions are estimated using interruption energy rates, customer-minutes of interruption, and total kVA of service areas. Then, the risk is assessed and later treated as an opportunity for mitigating the customer interruption costs by planned preventive maintenance tasks. Subsequently, cooperative game theory is exploited in the proposed method to locate a decent balance between the benefits of reliability enhancement and the costs required for preventive maintenance programs. The effectiveness of the proposed method is illustrated through case studies of large power distribution networks of 12 service regions, including 3558 medium-voltage distribution feeders. The preventive maintenance plans resulting from the proposed method present the best compromise of benefits and costs compared with the conventional approach that requires a pre-specified maintenance budget.
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Chukwu, Uwakwe Christian, and Satish M. Mahajan. "Impact Assessment of V2G on the Power Loss of Unbalanced Radial Distribution Network." International Journal of Emerging Electric Power Systems 14, no. 5 (August 6, 2013): 401–10. http://dx.doi.org/10.1515/ijeeps-2012-0012.

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Abstract Electric distribution feeders are inherently unbalanced and therefore have potential for severe power loss. The penetration of vehicle-to-grid (V2G) into the distribution feeders is expected to impact the power losses in the system. This is a pressing issue since power loss affects the operations, economics, and quality of service for the electric power systems. In this article, the impact of V2G parking lots on power losses of a radial distribution network is investigated. Two test networks were used in the study, namely: IEEE 13 and IEEE 123 Node test feeder networks. The test feeders and the V2G facilities were modeled in Radial Distribution Analysis Package (RDAP). Load flow results provided information on the power losses of the network. Results show that for a given penetration level, the impact of 3-phase and system-wide V2G integration on the power loss results in less power losses than 1-phase V2G integration. Results also indicate that operating the entire system such that V2G facilities will not compromise “near-balanced” state of operation and will have an improved impact on the power loss than highly unbalanced operation. The results obtained will be a useful tool for studying the impact of V2G on the power loss of a distribution network.
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Liu, Youbo, Yunche Su, Yue Xiang, Junyong Liu, Lingfeng Wang, and Weiting Xu. "Operational Reliability Assessment for Gas-Electric Integrated Distribution Feeders." IEEE Transactions on Smart Grid 10, no. 1 (January 2019): 1091–100. http://dx.doi.org/10.1109/tsg.2018.2844309.

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Jun Zhu, D. L. Lubkeman, and A. A. Girgis. "Automated fault location and diagnosis on electric power distribution feeders." IEEE Transactions on Power Delivery 12, no. 2 (April 1997): 801–9. http://dx.doi.org/10.1109/61.584379.

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Dissertations / Theses on the topic "Electric distribution feeders"

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Lee, Seung Jae. "Configuration control of distribution feeders in normal and emergency states /." Thesis, Connect to this title online; UW restricted, 1988. http://hdl.handle.net/1773/5923.

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Nye, Jonathan Mark. "Increasing distributed generation penetration when limited by voltage regulation." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86605.

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Thesis (MEng)--Stellenbosch University, 2014.
ENGLISH ABSTRACT: This work investigated the influence of photo-voltaic generators on the voltage control of distribution feeders and the methods that can be used to increase the maximum penetration levels of these feeders. Initially, a brief overview of the reasons why it is necessary to increase the generation penetration levels on distribution feeders was provided. A review of various issues associated with connecting generation to the distribution network; methods and technologies that can be used to increase penetration levels; and ways to improve voltage regulation on MV feeders was given. The grid code for renewable power plants and the voltage apportionment standard were reviewed to determine what limits penetration levels and what can be done to increase them. The operation and control of a typical distribution network, without any connected generation, was initially investigated. A control strategy was implemented that provided suitable voltage regulation on the feeder during both high and low load. The influence of connecting generation to this typical distribution network, without making any modifications to the control of the feeder, was investigated. Base penetration levels, for various generation connection cases, were found. It was shown that the penetration is limited by the rapid voltage change or voltage rise. The base penetration levels were compared to the optimal amount of generation that provides the lowest losses. It was shown that the penetration needs to be increased by between 100% and 200% for the feeder’s losses to be minimised. Voltage regulator and capacitor control was influenced by the generation and they could not function as expected. It was shown that flicker will not be an issue, even with penetration limits well above the current allowable limits. Various methods that can be used to increase the amount of generation that is connected to the typical network were investigated. On-load tap changer setpoint reduction, reactive power control and electronic voltage regulators are some of the methods or technologies that can be used to increase penetration levels. It was shown that each of the technologies can assist, depending on the circumstance, in increasing penetration. The individual modifications can increase penetration up to 100% at the cost of increased tap changes and in some cases losses. Two proposed control strategies were assessed, that combine the investigated technologies. The results showed that it is possible to increase penetration levels by 50-80%, while improving power quality and reducing losses when compared to the base generation connection case.
AFRIKAANSE OPSOMMING: Hierdie werk ondersoek die invloed van die foto- voltaïes kragopwekkers op die spanning beheer van die verspreiding voerder asook die metodes wat gebruik kan word om die maksimum penetrasie vlakke van hierdie voerders te verhoog. Aanvanklik is 'n kort oorsig van die redes waarom dit nodig is om die opwekking penetrasie vlakke op die verspreiding voerders, te verhoog voorsien . Eerstens word 'n hersiening van verskeie kwessies wat verband hou met die koppeling van generasie na die verspreidingsnetwerk gegee. Tweedens word metodes en tegnologie wat gebruik kan word om penetrasie te verhoog gegee en laastens word maniere om spanning regulasie op medium spanning voerders te verbeter, gegee. Die rooster kode "grid code => probeer liewer netwerk regulasies" vir hernubare krag aanlegte en die spanning toedeling standaard is hersien om te bepaal wat beperk die penetrasie vlakke en wat gedoen kan word om dit te verhoog. Die werking en beheer van 'n tipiese verspreiding netwerk, sonder enige verbonde generasie, is aanvanklik ondersoek. 'n Beheer-strategie is toe geïmplementeer wat geskikte spanning regulasie op die voerder tydens beide hoë en lae belasting verskaf. Die invloed van die koppeling van opwekking tot hierdie tipiese verspreiding netwerk, sonder om enige veranderinge aan die beheer van die voerder, is ondersoek. Basis penetrasie vlakke, vir verskeie generasie verband gevalle, is gevind. Daar is bewys dat die penetrasie word beperk deur die vinnige spanning verandering of spanning styging. Die basis penetrasie vlakke word vergelyking met die optimale aantal generasie wat die laagste verliese bied. Daar is bewys dat die penetrasie moet met tussen 100% en 200% verhoog word sodat die voerder se verliese beperk kan word. Die spanning reguleerder en kapasitor beheer is beïnvloed deur die opwekking en hulle kon nie reageer soos verwag nie. Daar is getoon dat flikker nie 'n probleem sal wees nie; selfs al is die penetrasie vlakke ver bo die huidige toelaatbare grense. Verskillende metodes wat gebruik kan word om die aantal generasie wat gekoppel is aan die tipiese netwerk te verhoog is ondersoek. Aan-las tap wisselaar vermindering, reaktiewe krag beheer en elektroniese spanning reguleerders is 'n paar van die tegnieke wat gebruik kan word om penetrasie te verhoog. Daar is bewys dat elkeen van die tegnologieë kan help, afhangende van die omstandighede, vir toenemende penetrasie. Die individuele veranderinge kan penetrasie verhoog tot 100% by die koste van 'n verhoogde tap veranderinge en in sommige gevalle verliese. Twee voorgestelde beheer strategieë is beoordeel, wat die ondersoek tegnologie kombineer. Die resultate het getoon dat dit moontlik is om penetrasie te verhoog met 50% tot 80%, terwyl die verbetering van gehalte en die vermindering van krag verliese in vergelyking met die basis generasie verband hou.
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Mascarella, Diego. "Voltage flicker assessment in distribution feeders with large wind farms." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114387.

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In recent years, Doubly Fed Induction Generator (DFIG) wind turbines connected to rural distribution feeders represents an emerging trend that has experienced growth. Higher penetration levels of embedded wind generation has interesting benefits (i.e. peak-shaving, congestion alleviation, reduction of losses, etc.) but raises important issues concerning the quality of power delivered to utility consumers. This thesis investigates the technical limitations involved with integrating large DFIG based wind farms into existing distribution feeders with regard to voltage flicker. This dissertation includes an overview of firstly, the applicable Electromagnetic Compatibility (EMC) standards related to the measurement and assessment of flicker emissions produced by distribution-connected wind farms. Secondly, aerodynamic, turbine and feeder characteristics which influence voltage flicker. Thirdly, the level of modeling required to conduct a pre-connection flicker study. Based on these three aspects, flicker emissions produced by a DFIG are quantified and a rule of thumb and a set of guidelines are presented for the acceptance of a 10 MW to 14 MW distributed wind farm, compliant to the allocated flicker emission quota. If the rule of thumb does indeed reveal a problem, both passive and active flicker mitigation techniques are proposed such that EMC of the power system is preserved.
Au cours des dernières années, les éoliennes à base de génératrice asynchrone à double alimentation (DFIG) connectées à des réseaux de distribution rurale représentent une tendance émergente en croissance. Le niveau de pénétration plus élevé d'énergie éolienne présente des avantages intéressants (i.e. écrêtement des pointes, la réduction de la congestion, la réduction des pertes, etc.) mais il soulève d'importantes questions liées à la qualité de l'énergie livrée aux consommateurs. Cette thèse étudie les limites techniques liées à l'intégration des grands parcs éoliens dans les réseaux de distribution existants au niveau du scintillement. Cette thèse comprend, premièrement, une vue d'ensemble des normes applicables sur la compatibilité électromagnétique concernant la mesure et l'évaluation des émissions produites par des parcs éoliens connectés à des réseaux de distribution. Deuxièmement, l'aérodynamisme, la turbine et les caractéristiques du réseau de distribution sont étudiés pour leurs influences sur le scintillement. Troisièmement, le niveau de la modélisation requis pour mener une étude de pré-connexion sur le scintillement est évalué. Sur la base de ces trois aspects, les émissions de scintillements induites par les éoliennes DFIG sont quantifiées. Une méthode empirique et un ensemble de directives sont présentés pour l'intégration d'un parc éolien de 10 MW à 14 MW afin d'assurer une conformité au quota alloué pour l'émission de scintillement. Si la méthode empirique révèle un problème, des techniques passives et actives d'atténuation de scintillement sont proposées afin que la compatibilité électromagnétique du réseau électrique soit préservée.
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George, Michael. "Distribution feeder reduction for dispersed generation applications." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117136.

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Electric power systems today are undergoing a paradigm shift in operational and market philosophy through technologies like distributed generation and the "smart grid." Decentralizing the power system and allowing users to inject power into the grid, however, introduces a wide array of problems, and much research has gone towards implementing a growing number of small generation sources throughout the existing electric power network infrastructure. This thesis describes the issues involved in reducing a typical rural distribution feeder to a model that can be used for distributed generation interconnection studies, particularly for islanding studies.
Nos systèmes de puissance électrique procèdent présentement à un changement de paradigme autant dans leurs philosophies opérationnelles que dans celles du marché grâce à des technologies telles que la génération distribuée et la plateforme «smart grid». Décentraliser le système d'énergie et permettre aux usagers d'injecter de l'énergie dans le réseau présente néanmoins de nombreux problèmes, et beaucoup de nouvelles études cherchent à établir un nombre croissant de petites sources de génération dans le cadre du réseau d'infrastructure d'énergie électrique existant présentement. Cette thèse décrit les questions liées à la réduction d'une artère de distribution rurale typique d'un modèle qui peut être utilisé pour des études d'interconnexion distribués génération, en particulier pour les études îlotage.
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Eppinger, Crystal. "Impact Analysis of Increased Dispatchable Resources on a Utility Feeder in OpenDSS." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/4000.

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Oregon utilities are replacing their portfolios of traditional fossil fuel generation with renewable generating sources. Stepping away from carbon-producing energy will leave a deficit of on-demand power, resulting in decreased reliability. To overcome these technical challenges, utilities must maximize the use of their present dispatchable resources. One such resource is the Portland General Electric (PGE) Dispatchable Standby Generation Program (DSG), which is an aggregated 105 MWs of distributed generation (DG). These resources are brought on-line when there is a critical need for power. Resources are added to the program if a transfer trip scheme is in place or a modeling study reveals that the feeder load is at least three times the generator capacity. If the load-to-capacity ratio were lower, more assets could be added to the DSG program. To investigate the impacts of lowering the DG load-to-capacity ratio on existing distribution feeders, we use Open-Source Distribution System Simulator (OpenDSS). We modeled the Oxford Rural feeder by converting a utility CYME database to instantiation files using several MATLAB programs. A MATLAB control program varies the load-to-capacity ratio of the OpenDSS feeder model and monitors the generator behavior immediately following a fault. We analyzed the results to determine the ideal load-to-capacity ratio that prevents unintentional islanding. The results show that the instantaneous (50) relay element settings dictate both the minimum load-to-capacity ratio and the maximum DG capacity. The present three-to-one ratio is very conservative and can be reduced. Additional dispatchable resources include a five MW battery-inverter system currently used as grid-back up. The battery is grid-tied to a 12.4 kV feeder making it an ideal candidate for conservation voltage reduction (CVR). Using the same feeder model, we investigated the effects of lowering the system voltage to the allowable minimum using injections of reactive power. A lower system voltage reduces the load at peak times. Conversely, increasing the voltage prevents generation conflicts. To determine the benefit of CVR by VAr-injection on the Oxford Rural feeder, we created a MATLAB optimization program to output the optimal feeder voltage for reduced system power. We use a Simulink feedback model to determine the appropriate reactive power needed to achieve the voltage change. We analyze the system model to reveal that the feeder is ideal for CVR but the system capacity must be increased to achieve the maximum power reduction.
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Subedi, Laxman. "Trouble call analysis for single and multiple outages in radial distribution feeders." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/13805.

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Master of Science
Department of Electrical and Computer Engineering
Sanjoy Das
Anil Pahwa
Outage management describes system utilized by electric distribution utilities to help restore power in event of an outage. The complexity of outage management system employed by different utilities to determine the location of fault could differ. First step of outage management is to know where the problem is. Utilities typically depend on customers to call and inform them of the problem by entering their addresses. After sufficient calls are received, the utility is able to pinpoint the location of the outage. This part of outage management is called trouble call analysis. In event of fault in a feeder of a radial distribution system, the upstream device or the device that serves to protect that particular zone activates and opens the circuit. This particular device is considered as the operated protective device. The knowledge of the activated protective device can help locate the fault. Repair crews could be sent to that particular location to carry out power restoration efforts. The main objective of this work is to study model of distribution system that could utilize the network topology and customer calls to predict the location of the operated protective device. Such prediction would be based on the knowledge of the least amount of variables i.e. network topology and customer calls. Radial distribution systems are modeled using the immune system algorithm and test cases with trouble calls are simulated in MATLAB to test the effectiveness of the proposed technique. Also, the proposed technique is tested on an actual feeder circuit with real call scenarios to verify against the known fault locations.
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Wang, Lingyun. "Feeder Performance Analysis with Distributed Algorithm." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/31949.

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How to evaluate the performance of an electric power distribution system unambiguously and quantitatively is not easy. How to accurately measure the efficiency of it for a whole year, using real time hour-by-hour Locational Marginal Price data, is difficult. How to utilize distributed computing technology to accomplish these tasks with a timely fashion is challenging. This thesis addresses the issues mentioned above, by investigating feeder performance analysis of electric power distribution systems with distributed algorithm. Feeder performance analysis computes a modeled circuitâ s performance over an entire year, listing key circuit performance parameters such as efficiency, loading, losses, cost impact, power factor, three phase imbalance, capacity usage and others, providing detailed operating information for the system, and an overview of the performance of every circuit in the system. A diakoptics tearing method and Graph Trace Analysis based distributed computing technology is utilized to speed up the calculation. A general distributed computing architecture is established and a distributed computing algorithm is described. To the best of the authorâ s knowledge, it is the first time that this detailed performance analysis is researched, developed and tested, using a diakoptics based tearing method and Graph Trace Analysis to split the system so that it can be analyzed with distributed computing technology.
Master of Science
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Carter-Brown, Clinton Geoffrey. "Effect of conductor size on the total cost of electricity distribution feeders in South African electrification." Doctoral thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/5257.

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Includes bibliographical references (p. 191-201).
There is an optimum conductor size that minimises the lifetime cost of domestic electrification networks. The lifetime cost consists of the initial capital cost and ongoing running cost. Technical load losses are an important running cost and consideration for conductor size optimisation. Traditional conductor size optimisation methods base technical load loss costs on upstream generation and network costs. These loss costing methods assume that consumers behave as constant power loads. The impact of conductor voltage drops on changes in consumer energy consumption and demand and hence changes in utility bulk purchase cost and sales revenue are ignored. Traditional load loss calculation methods do not adequately describe the stochastic nature of individual consumer loads. In low-voltage domestic networks traditional methods may account for less than 25% of the actual lifetime running cost due to load losses and conductor voltage drop. It is shown that the results of traditional conductor size optimisation methods are severely compromised.
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Kankanala, Padmavathy. "Machine learning methods for the estimation of weather and animal-related power outages on overhead distribution feeders." Diss., Kansas State University, 2013. http://hdl.handle.net/2097/16914.

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Doctor of Philosophy
Department of Electrical and Computer Engineering
Sanjoy Das and Anil Pahwa
Because a majority of day-to-day activities rely on electricity, it plays an important role in daily life. In this digital world, most of the people’s life depends on electricity. Without electricity, the flip of a switch would no longer produce instant light, television or refrigerators would be nonexistent, and hundreds of conveniences often taken for granted would be impossible. Electricity has become a basic necessity, and so any interruption in service due to disturbances in power lines causes a great inconvenience to customers. Customers and utility commissions expect a high level of reliability. Power distribution systems are geographically dispersed and exposure to environment makes them highly vulnerable part of power systems with respect to failures and interruption of service to customers. Following the restructuring and increased competition in the electric utility industry, distribution system reliability has acquired larger significance. Better understanding of causes and consequences of distribution interruptions is helpful in maintaining distribution systems, designing reliable systems, installing protection devices, and environmental issues. Various events, such as equipment failure, animal activity, tree fall, wind, and lightning, can negatively affect power distribution systems. Weather is one of the primary causes affecting distribution system reliability. Unfortunately, as weather-related outages are highly random, predicting their occurrence is an arduous task. To study the impact of weather on overhead distribution system several models, such as linear and exponential regression models, neural network model, and ensemble methods are presented in this dissertation. The models were extended to study the impact of animal activity on outages in overhead distribution system. Outage, lightning, and weather data for four different cities in Kansas of various sizes from 2005 to 2011 were provided by Westar Energy, Topeka, and state climate office at Kansas State University weather services. Models developed are applied to estimate daily outages. Performance tests shows that regression and neural network models are able to estimate outages well but failed to estimate well in lower and upper range of observed values. The introduction of committee machines inspired by the ‘divide & conquer” principle overcomes this problem. Simulation results shows that mixture of experts model is more effective followed by AdaBoost model in estimating daily outages. Similar results on performance of these models were found for animal-caused outages.
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Mansour, Osama Mohammed Abbas Aly. "Determining the Power and Energy Capacity of a Battery Energy Storage System Utilizing a Smoothing Feeder Profile to Accommodate High Photovoltaic Penetration on a Distribution Feeder." PDXScholar, 2016. http://pdxscholar.library.pdx.edu/open_access_etds/3177.

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Electricity is a perishable commodity; once it is generated it needs to be consumed or stored. Electric energy storage provides both power and energy capacity. Power capacity applications reduce the need for generation, while energy capacity allows for energy consumption to be decoupled from generation. Previous research was done to develop an algorithm for determining the power (MW) and energy (MWh) capacities of a battery energy storage system (BESS) to mitigate the adverse impacts of high levels of photovoltaic (PV) generation. The algorithm used a flat feeder profile, and its performance was demonstrated on the equinoxes and solstices. Managing feeder power leads to fewer voltage fluctuations along the length of the feeder, potentially mitigating load management issues caused by variability of renewable generation and load profile. These issues include lighting flicker, compressor seizing, equipment shut-off, loss of motor torque, frequent transformer tap changes and even voltage collapse due to loss of reactive power support. The research described in this thesis builds on this algorithm by incorporating a smoothed feeder profile and testing it over an entire year. Incorporating a smoothing function reduces the requisite BESS energy capacity necessary to provide firming and shaping to accommodate the stochastic nature of PV. Specifically, this method is used to conduct a year-long study on a per second basis, as well as a one-minute basis, for a distribution feeder. Statistical analytical methods were performed to develop recommendations for appropriately sizing the BESS. This method may be used to determine the amount of PV generation that could be installed on a distribution feeder with a minimal investment in the BESS power and energy capacities that would be required to manage the distribution feeder power. Results are presented for PV penetration levels of 10%-50% of the distribution feeder capacity and show that the use of a smooth feeder profile reduces the required energy capacity by a minimum factor of 10 when compared to a flat feeder profile. Results indicated that it is sufficient to have a one-minute sampling rate, as it provides the necessary granularity to model cloud-induced fluctuations. This method can be applied to any distribution feeder where a load profile and a PV profile are available.
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Books on the topic "Electric distribution feeders"

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NCCER. 26401-17 Load Calculations - Feeders and Services Trainee Guide. Pearson Education, Limited, 2017.

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Book chapters on the topic "Electric distribution feeders"

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Chelaru, Ecaterina, Livia Noroc, Gheorghe Grigoras, and Bogdan-Constantin Neagu. "Energy Losses Estimation in the Electric Distribution Networks Using Clustering-Based Selection of the Representative Feeders." In The 15th International Conference Interdisciplinarity in Engineering, 508–21. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-93817-8_47.

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Preethi, B., and B. V. Sumangala. "Voltage Stabilization Through Reactive Power Injection at Secondary Terminals of Distribution Level Feeders—Using Thyristor-Switched Capacitor." In Lecture Notes in Electrical Engineering, 547–56. New Delhi: Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-1157-0_56.

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Soni, Yuvraj Praveen, and E. Fernandez. "An ANN Model for Load Performance Evaluation of a IEEE 9-Bus Radial Microgrid Distribution Feeder." In Lecture Notes in Electrical Engineering, 291–99. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4971-5_22.

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Simachew, Bawoke. "Loss Minimization in Active Distribution Network." In Handbook of Research on New Solutions and Technologies in Electrical Distribution Networks, 119–35. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1230-2.ch007.

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Power loss reduction is an important problem that needs to be addressed with respect to generating electrical power. It is important to reduce power loss using locally generated power sources and/or compensations. This chapter brings a method of presents a method of maximizing energy utilization, feeder loss reduction, and voltage profile improvement for radial distribution network using the active and reactive power sources. Distributed Generation (DG) (wind and solar with backup by biomass generation) and shunt capacitor (QG) for reactive power demand are used. Integrating DG and QG at each bus might reduce the loss but it is economically unaffordable, especially for developing countries. Therefore, the utilization optimization method is required for finding an optimal size and location to feeders for placing QG and DG to minimize feeder loss.
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Kumar, Kamlesh, and Mahesh Kumar. "Impacts of Distributed Generations on Power System." In Handbook of Research on New Solutions and Technologies in Electrical Distribution Networks, 171–90. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1230-2.ch010.

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With increasing population and urbanization, the demand of electricity also increases day by day; to fulfill this demand, clean and environment-friendly distributed generations are being installed, but these have some issues in power section. With the integration of DG load curve is levelized, feeder voltage is improved; loading effect on the transformer and branches is reduced, and provides electricity with no pollution. This chapter investigates impacts of DGs to the power system; distributed generation means to generate electric power near the power consumption point. Power quality and reliability can be enhanced by the interconnection of distribution generation to an existing distribution system. However, there are so many effects of distributed generation e.g. changing of load losses, increasing of short circuit levels, voltage transient, congestions in the system branches, power quality, and reliability and network protection issues such as false tripping, nuisance tripping, unintentional islanding, neutral shifting is mainly affected.
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Jana, Debashis, and Ranjita Chowdhury. "Self-Adaptive Multivariate q-Gaussian-based Capacitor Placement for Reactive Power Compensation in Distribution Feeders." In Intelligent Electrical Systems: A Step towards Smarter Earth, 41–48. CRC Press, 2021. http://dx.doi.org/10.1201/9780429355998-5.

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"Program List for Propagation of a Surge through a Distribution Feeder with an Insulator Flashover (Application Example 2.9)." In Power Quality in Power Systems and Electrical Machines, 479. Elsevier, 2008. http://dx.doi.org/10.1016/b978-012369536-9.50015-2.

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Conference papers on the topic "Electric distribution feeders"

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Yanfeng Gong and Armando Guzman. "Integrated fault location system for power distribution feeders." In 2012 IEEE Rural Electric Power Conference (REPC). IEEE, 2012. http://dx.doi.org/10.1109/repcon.2012.6194570.

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Chan, Chieh-Min, Hung-Ru Liou, and Chan-Nan Lu. "Operation of distribution feeders with electric vehicle charging loads." In 2012 IEEE 15th International Conference on Harmonics and Quality of Power (ICHQP). IEEE, 2012. http://dx.doi.org/10.1109/ichqp.2012.6381197.

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Jnawali, Ram Prasad, Khagendra Bahadur Thapa, and Nava Raj Karki. "Load Factor Improvement of Distribution Feeders by Feeder Reconfiguration Using Modified BPSO Considering Losses." In 2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET). IEEE, 2021. http://dx.doi.org/10.1109/sefet48154.2021.9375637.

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Baldenko, Nicolas, and Shayan Behzadirafi. "Determination of photovoltaic hosting capacity on radial electric distribution feeders." In 2016 IEEE International Conference on Power System Technology (POWERCON). IEEE, 2016. http://dx.doi.org/10.1109/powercon.2016.7753969.

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Glueck, Jason, and Ha Thu Le. "Impacts of Plug-in Electric Vehicles on local distribution feeders." In 2015 IEEE Power & Energy Society General Meeting. IEEE, 2015. http://dx.doi.org/10.1109/pesgm.2015.7286348.

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Vykuka, Roman, and Miloslava Tesarova. "Evaluation of power distribution along interconnected middle voltage feeders." In 2016 17th International Scientific Conference on Electric Power Engineering (EPE). IEEE, 2016. http://dx.doi.org/10.1109/epe.2016.7521737.

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Schneider, K. P., and T. F. Weaver. "Volt-VAR optimization on American Electric Power feeders in Northeast Columbus." In 2012 IEEE/PES Transmission and Distribution Conference and Exposition (T&D). IEEE, 2012. http://dx.doi.org/10.1109/tdc.2012.6281586.

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Biroon, Roghieh A., Zoleikha Abdollahi, and Ramtin Hadidi. "Fast and Regular Electric Vehicle Charging Impacts on the Distribution Feeders." In 2019 IEEE Industry Applications Society Annual Meeting. IEEE, 2019. http://dx.doi.org/10.1109/ias.2019.8912036.

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Jones, C. Birk, Matthew Lave, and Rachid Darbali-Zamora. "Overall Capacity Assessment of Distribution Feeders with Different Electric Vehicle Adoptions." In 2020 IEEE Power & Energy Society General Meeting (PESGM). IEEE, 2020. http://dx.doi.org/10.1109/pesgm41954.2020.9281844.

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Kroposki, Benjamin, P. K. Sen, and Keith Malmedal. "Selection of distribution feeders for implementing distributed and renewable energy applications." In 2009 IEEE Rural Electric Power Conference (REPC). IEEE, 2009. http://dx.doi.org/10.1109/repcon.2009.4919419.

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