Дисертації з теми "Inductive energy storage system"
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Abbey, Chad. "A doubly-fed induction generator and energy storage system for wind power applications /." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81522.
Повний текст джерелаThis work presents the addition of an energy storage system to a wind turbine design.
Various advantages are exhibited for the wind turbine with energy storage. Firstly, the generator is capable of accurately controlling the output power of the generator and inevitably of the wind park. Reactive power requirements are also reduced as a result of a more stable voltage at the point of interconnection. In addition, improved transient performance is exhibited for various local disturbances.
Radebe, Thandwefika. "Are solar home systems a more financially viable method of electrifying Ghana households?" Master's thesis, Faculty of Commerce, 2021. http://hdl.handle.net/11427/33001.
Повний текст джерелаPimperton, M. G. "The meatgrinder : an efficient current-multiplying inductive energy storage and transfer circuit." Thesis, Loughborough University, 1990. https://dspace.lboro.ac.uk/2134/10828.
Повний текст джерелаNavas, Michael Andrés Hernández. "Sistema de armazenamento aplicado a sistemas eólicos empregando conversores de fonte z conectados à rede elétrica." reponame:Repositório Institucional da UFABC, 2015.
Знайти повний текст джерелаDissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Engenharia Elétrica, 2015.
Neste trabalho apresenta-se uma configuração do sistema de armazenamento de energia com baterias aplicado a sistemas de geração de energia eólica empregando conversores de fonte Z conectados à rede elétrica. Os geradores de indução gaiola de esquilo, são frequentemente utilizados nos sistemas de geração de energia eólica, por sua robustez, simplicidade, peso menor e custo baixo. Este é conectado diretamente ao conversor de potência bidirecional back to back, pode fornecer potências ativa e reativa à rede elétrica. Além disso, é estudado o conversor de fonte Z aplicado nesta topologia. No entanto, a implantação de sistemas de armazenamento de energia com baterias nos sistemas de geração de energia eólica na atualidade é muito importante, devido à possibilidade de oscilações da tensão e corrente na rede elétrica, portanto, estes podem ajudar à estabilização das tensões, correntes e a frequência na rede elétrica. Este sistema é conectado ao conversor back to back por meio de um conversor elevador-abaixador de corrente contínua. Para controlar a velocidade no eixo do rotor no gerador de indução, a estratégia é baseada no controle direto de torque. Enquanto, para o conversor do lado da rede é empregada a técnica de controle orientado pela tensão. Para o banco de baterias é utilizado o controle da tensão no barramento de corrente contínua e do fluxo na corrente da bateria, utilizando controladores do tipo PI. Com os novos desenvolvimentos tecnológicos nas chaves de potência, são apresentadas topologias de conversores CC-CA como o conversor de fonte Z, este tipo de conversor corrige algumas limitações do conversor back to back, com as características de elevador/abaixador de tensão, sem o uso de dispositivos de comutação, são permitidos os curto-circuitos na chaves, empregando novas técnicas de modulação, e reduz a quantidade harmônica injetada na rede elétrica. Os estudos foram realizados por meio de técnicas de simulação computacional usando modelos matemáticos do sistema estudado para a validação das estratégias de controle empregadas em diferentes condições de operação. Para as simulações empregou-se a ferramenta computacional SimPowerSystems R do Matlab/Simulink R .
This paper presents a battery energy storage system applied to wind power generation based on Z-source inverter connected to the power grid. The squirrel cage induction generators, often used in wind power generation systems, for its robustness, simplicity, lower weight and low cost. This is connected directly to the bidirectional power converter back to back, therefore, and provides active and reactive powers to grid. In addition, it is studied the Z-source inverter applied in this topology. However, the implementation of battery energy storage systems in wind power generation systems, currently is very important, due to possibility of the voltage and current fluctuations in the power grid, so these may to stabilisation of current, voltage and frequency on the grid. This system is connected to back to back converter through a DC-DC converter (buck-boost). For the rotor speed control on induction generator, the strategy is based on direct torque control. While, for the grid side converter is employed the technique of voltage oriented control. For the battery bank voltage control is used on DC-link voltage and battery current flow, through PI type controllers. With the new technological developments in the keys of power, DC converters topologies are presented as the Z-source inverter, this type converter fixes some limitations of the converter back to back, with the characteristics of buck-boost voltage, without the use of switching devices, allowed short-circuits on converter, using new modulation techniques, and reduces the amount injected harmonic to power grid. The studies were performed by means of computer simulation techniques using mathematical models of studied system to validate the control strategies employed in different operating conditions. For the simulations was used the computational tool SimPowerSystems R do Matlab/Simulink R .
Tahat, M. A. "Thermo-chemical energy storage system." Thesis, Cranfield University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260146.
Повний текст джерелаChang, Xiao. "Supercapacitor based energy storage system." Thesis, University of Strathclyde, 2013. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=25509.
Повний текст джерелаRanjith, Adam. "Thermal Energy Storage System Construction." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264530.
Повний текст джерелаInom ramverket för 2020 PUPM HEAT projektet kommer tre olika typer av värmeenergilagrings enheter tillverkas och analyseras vid energikraftverket IREN i Moncalieri, Italien. KTH kommer att assistera detta projekt genom att sätta upp en anläggning med tre liknande värmeenergilagrings enheter i mindre dimensioner som kommer konstrueras och analyseras. Dess data kommer sedan användas som riktlinje för att tillverka de större värmeenergilagringsenheterna i IREN. Den första enheten som tillverkas är en värmeväxlare som bygger på en ny version av latent energilagring. Den kommer att bestå av parallella lager av spiral formade koppar rör som fyller en tank. Tomrummet som blir över kommer att fyllas upp av fasändrings material (PCM). Genom att injicera varmt vatten i systemet kommer PCM:et att byta fas, vilket resulterar i att värmeenergin lagras i systemet. När sedan kallt vatten injiceras kan den sparade energin bli utvunnen. Den här rapporten kommer att presentera designen till tank kåpan såväl som den inre strukturen med kopparrör som behövs till värmeväxlaren. Resultatet ska möjliggöra beställning av alla delar som behövs för att konstruera värmeväxlaren.
Degnon, Mawuena. "Étude des commutateurs semi-conducteurs à ouverture destinés à des applications de puissance pulsée avec des tensions de sortie allant jusqu'à 500 kV." Electronic Thesis or Diss., Pau, 2024. https://theses.hal.science/tel-04685830.
Повний текст джерелаIn pulsed power systems, inductive energy storage has an advantage over capacitive storage because of its higher energy density. Exploiting this advantage requires the use of an opening switch to generate the voltage pulse. Moreover, the growing need for reliable pulsed power generators, particularly for industrial applications, strongly supports the adoption of solid-state solutions. The Semiconductor Opening Switch (SOS) diode developed in the 1990s at the Institute of Electrophysics in Russia is an ideal candidate for solid-state opening switching because of its ability to reliably generate high-power pulses at high repetition rates while offering long lifetime and maintenance-free operation. However, the lack of SOS diode manufacturers prevents their widespread use. This thesis is therefore devoted to the study of off-the-shelf (OTS) diodes capable of rapidly switching high currents and generating nanosecond voltages of up to 500 kV. The research includes the investigation of various diode types including rectifier, avalanche, fast recovery, and transient voltage suppression (TVS) diodes as opening switches in comparison with state-of-the-art SOS diodes. Low, medium, and high-energy (25 mJ, 10 J, and 40 J respectively) test benches are developed for the experiments. Their circuits use a single magnetic element – a saturable pulse transformer – resulting in high energy efficiency. Several nanocrystalline cores are examined for optimum transformer performance at an energy of 10 J. Among the diodes investigated at 25 mJ and 10 J energy, the TVS and rectifying diodes stand out particularly promising with nanosecond switching time and generated voltages in the kilovolt range. Finally, a 40 J pulsed power generator prototype (GO-SSOS) based on an OTS opening switch consisting of rectifier diodes is developed. The GO-SSOS achieves a peak power of more than 300 MW with an energy efficiency ranging from 35% to 70% depending on the load value. Across a 1 kΩ load, the voltage pulse generated reaches 500 kV amplitude with a rise time of 36 ns and a pulse width of 80 ns. The system shows high reproducibility at a repetition rate of 60 Hz and is used to demonstrate a corona discharge application. The work proves the reliability of the OTS diodes in SOS mode, revealing no degradation after thousands of pulses. It also offers the prospect of using this technology in industrial applications such as electron-beam sterilization
Thaicham, Pruitipong. "Fluidised-MCPCM glazed energy storage system." Thesis, University of Nottingham, 2004. http://eprints.nottingham.ac.uk/11057/.
Повний текст джерелаAbbey, Chad Michel. "Energy storage system optimization and control with wind energy." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66694.
Повний текст джерелаCette thèse propose une méthodologie pour la planification, l'utilisation et la commande d'un système de stockage d'énergie permettant l'intégration de l'énergie éolienne. Utilisant comme étude de cas un réseau autonome alimenté par un système éolien-diesel, les différentes étapes de la conception et la mise en oeuvre sont détaillées. Premièrement, une étude de planification à long terme pour le dimensionnement de la puissance nominale et de la capacité énergétique du stockage est présentée, basée sur les méthodes d'optimisation stochastique. La formulation est ensuite adaptée à une commande sur une base horaire et les résultats sont comparés, au niveau de l'énergie et de la quantité d'énergie utilisée, aux résultats obtenus dans l'étude de planification. Les résultats obtenus par optimisation du système sont utilisés dans l'entrainement d'un réseau de neurones artificiels, afin de produire une commande qui capte les règles inhérentes au système, utilisant l'intelligence artificielle. Le stockage d'énergie est réalisé par un système de stockage à deux niveaux et une structure de commande appropriée à plusieurs niveaux est proposée et adaptée pour un système éolien-diesel, comme premier niveau d'une commande hiérarchique. La performance du système est évaluée par simulation et certains résultats ont été validés avec un banc d'essai. Celui-ci consiste à des convertisseurs électroniques intégrés avec une représentation par simulation temps réel du système. Les résultats obtenus concordent avec les résultats de simulation et confirment que la commande proposée est réalisable.
Rosen, Josefin, and Frida Nilsson. "Decentralized Polygeneration Energy System : Energy Storage Requirements & Challenges." Thesis, KTH, Energiteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190834.
Повний текст джерелаPå grund av den senaste utveckling av småskaliga energisystem, där energiindustrin går från ett centrerat till ett mer decentraliserat system och bristerna som finns i samband med energikällor, är därför nu viktigt att fokusera på förnybara energikällor och hur denna energi kan lagras. En lösning till detta är polygenerationsystem. Ett polygenerationsystem bygger på ett system som kombinerar värme, kylning och effektutveckling. Därigenom är det ett flexibelt system som kan modifieras beroende på systemets storlek, efterfrågan och krav. Denna rapport fokuserar på att kartlägga olika typer av energilagring och deras viktiga parametrar. Inledningsvis beskrivs de olika energilagringskoncepten grundligt sådan att läsaren får en överblick av de olika lagringsmetoderna. Därefter kartlägger rapporten de olika metoderna samt hur utvecklade de är genom TRL (Technology Readiness Level). För att få en bättre översikt över hur ett polygenerationsystem är uppbyggt samt dess funktion kan ett optimeringsprogram användas. Ett av dessa program är HOMER. HOMER kommer att användas i denna undersökning för att skapa en bredare förståelse över hur man kan optimera ett polygenerationsystem. Med hjälp av olika indata kan programmet räkna ut systemets vinst, bland annat utifrån ett ekonomiskt samt geografiskt perspektiv. Avgränsningen har valts genom att välja ett geografiskt område samt vilka resurser som finns tillgängliga i anknytning till detta. Eftersom huvudsyftet med rapporten handlar om de olika lagringsmetoderna kommer fokus främst ligga på batterierna, där en jämförelse mellan tre olika batterityper görs och vilka resultat de medför. Optimeringen i HOMER visade att det är möjligt att konstruera ett decentraliserat polygeneration system på den valda platsen, Sagar Island. Systemet kombinerar olika förnybara energikällor så som, sol och vind tillsammans med en generator, omvandlare och batterier för att skapa ett hållbart system. Resultatet visade en hög investeringskostnad för energisystemet i alla fallen, trots användandet av olika batterityper. Emellertid är investeringen lönsam för populationen på Sagar Island att få tillgång till elektricitet och de framtida fördelar som det kan medföra.
Rydberg, Lova. "RTDS modelling of battery energy storage system." Thesis, Uppsala universitet, Elektricitetslära, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-155960.
Повний текст джерелаMueller, Joshua M. (Joshua Michael) 1982. "Increasing renewable energy system value through storage." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98540.
Повний текст джерелаThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 135-143).
Intermittent renewable energy sources do not always provide power at times of greatest electricity demand or highest prices. To do so reliably, energy storage is likely required. However, no single energy storage technology is dominant when comparing cost intensities of the energy capacity and power capacity of storage. Past research on energy storage technologies has debated the value of storage technologies for different applications, and has compared the cost structures of different storage technologies without finding generalizable results across both locations and technologies. Here, a single performance metric, the benefit / cost ratio (X) of storage value added is analyzed across six locations globally to show that the relative value of storage technologies is largely location invariant. Electricity price dynamics, specifically the frequency and height of price spikes determine the value of storage, while the duration of price spikes determines the relative value of one technology versus another. We find that cost targets can be set for different technologies with ranging energy and power costs of storage.
by Joshua Michael Mueller.
S.M. in Technology and Policy
Maskey, Anuj. "Battery energy storage system control algorithm design." Thesis, Maskey, Anuj (2019) Battery energy storage system control algorithm design. Honours thesis, Murdoch University, 2019. https://researchrepository.murdoch.edu.au/id/eprint/52653/.
Повний текст джерелаLi, Jianwei. "Design and assessment of the superconducting magnetic energy storage and the battery hybrid energy storage system." Thesis, University of Bath, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760945.
Повний текст джерелаSvensson, Henrik. "Pre-Study for a Battery Storage for a Kinetic Energy Storage System." Thesis, Uppsala universitet, Elektricitetslära, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-249173.
Повний текст джерелаRoss, Michael. "Energy storage system scheduling in wind-diesel microgrids." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95237.
Повний текст джерелаCette thèse propose un système expert avec une base de connaissance qui peut être utilisé comme un contrôleur lors de la charge et de la décharge d'un système de stockage d'énergie dans un micro-réseau éolien-diesel. Un micro-réseau éolien-diesel modèle est établi, et un stockage est installé pour tester les fonctionnalités du contrôleur en utilisant des valeurs de la puissance horaire. Les résultats sont comparés avec une optimisation utilisant 24 heures de valeurs en avance pour la vitesse du vent, et aussi avec un contrôleur basé sur un réseau de neurones artificiels. Le contrôleur système expert est ensuite utilisé pour analyser les coûts d'énergie d'une analyse paramétrique, en variant la pénétration du vent, la puissance nominale du stockage, et la capacité nominale du stockage. Cette analyse indique pour quelles valeurs de pénétration éolienne une mise en vre d'un stockage serait viable économiquement et techniquement. Différentes technologies de stockage sont testées afin de déterminer laquelle serait le mieux adapté pour cette application particulière. Les systèmes de stockage sont réalisés à l'aide d'un ou de plusieurs types de systèmes, et le contrôleur système expert est modifié en conséquence, afin de déterminer s'il y a des avantages à avoir ce type de stockage. Ces analyses montrent aussi que le contrôleur système expert a la capacité et la flexibilité de s'adapter à des technologies ainsi qu'à des micro-réseaux de différents types.
Alhuttaitawi, Saif. "Storage System for Harvested Energy in IoT Sensors." Thesis, Högskolan Kristianstad, Fakulteten för naturvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-18291.
Повний текст джерелаMaurel, Marion. "Performance Testing of a MobileThermal Energy Storage System." Thesis, KTH, Energiteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232325.
Повний текст джерелаIn Europe, the industry sector constitutes 31 % of the global energy demand and among this, 20 to 50 %of the total energy input is lost as heat released to the atmosphere. In the meantime, the EuropeanCommission Energy Roadmap 2050 recognizes the essential role of energy storage in the process ofdecarbonisation of the European energy system.In line with these observations, the Energy Department of the Royal Institute of Technology (KTH) istesting and developing a project entitled Heat on Wheels. The basic principle of this project is to collectsurplus heat of industry and to bring it to users – e.g. via a district heating network – using a phase changematerial (PCM) as an intermediate to store the energy and carry it from one point to another in a mobilethermal energy storage (M-TES) unit.This thesis takes part in testing the performances of Erythritol as a PCM storing and releasing energy in aprototype at KTH. The prototype consists of tube heat exchanger submerged in PCM. The HTF eithermelts the PCM (endothermic process) or freezes it (exothermic process). The M-TES storage density isaround 178 kWh/m3.The results show a 2.50 times longer charging time and a 1.62 times longer discharging time with a halvedHTF flow. Halving the HTF flow also leads to a 50 % decrease in power in the PCM over the wholecharge process. The power received by the HTF during the whole process is halved when increasing thedischarge HTF temperature by 33 %. The melting/freezing process of the PCM is dependent on thelocalization in the storage unit. Nevertheless, technical grade Erythritol seems to sustain repeatedwarming-cooling cycles, without noticeable storage degradation.The study also showed that with the proposed design, upscaling M-TES with a 700 % increase in lengthwould result in an overall heat transfer coefficient multiply on average by 7 ensuring thus an even fastercharge/discharge process.A recommendation for future work is to investigate how to homogenize the melting/freezing of the PCMin the heat exchanger, maybe by better spreading the HTF flow in between the pipes. It would also beadvantageous to work on reducing the losses in between the charge and the discharge in order to keep asmuch energy as possible. Further studies on the impact of upscaling the laboratory prototype can also beconducted, taking into account different designs such as a larger pipe diameter for instance.
Cordeiro, Roberto. "Energy Storage System for Wind-Diesel Power System in Remote Locations." Thesis, Högskolan i Gävle, Energisystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-22534.
Повний текст джерелаO objetivo dessa tese é determinar quanto combustível pode ser economizado quando se integra um sistema de armazenamento de energia (ESS na sigla em Inglês) a um sistema gerador baseado em gerador diesel integrado com turbina eólica (WDPS na sigla em Inglês). Geradores à diesel são largamente utilizados em áreas remotas onde a rede de distribuição de eletricidade não chega, e a integração de geradores à diesel com turbinas eólicas se tornou a combinação usual visando a economia de combustível. No entanto, a intermitência do vento cria alguns desafios que podem inclusive tornar essa integração inviável economicamente. A introdução de ESS à esse sistema visa o aproveitamento da energia que seria desperdiçada para usá-la em periodos de alta demanda.A tese começa descrevendo as características de ESS e suas principais tecnologias: Flyweel, hidroelétrica de bombeamento, ar-comprimido e as quatro principais tecnologias de bateria, Chumbo-Ácido, Níquel, Íon de Lítio e Sódio-Sulfúrico. O objetivo dessa etapa é obter os principais parâmetros de ESS e apresentá-los numa planilha para referência futura.Na etapa seguinte, geradores à diesel são descritos e é introduzido o conceito de Penetração do Vento. A razão entre a capacidade eólica e a capacidade do gerador diesel determina se a penetração é baixa, média ou alta, e esse nível tem uma relação direta com a complexidade do WDPS. Nessa etapa também são introduzidos importantes conceitos sobre demanda numa rede de distribuição de eletricidade e como esta é afetada pela penetração do vento.A etapa seguinte apresenta a modelagem de WDPS com baixa, média e alta penetração, incluindo a integração com ESS. Sobre esses modelos são então executadas simulações buscando determinar o consumo de diesel de cada um. As simulações são feitas usando a ferramenta reMIND.A última etapa é um estudo comparativo para determinar qual tecnologia de ESS é a mais apropriada para WDPS, levando-se em conta sua localização geográfica e capacidade. Uma vez que a escolha tenha sido feita, a viabilidade econômica do ESS é calculada baseado na ecomonia de combustível obtida na etepa anterior.Como esta tese apresenta uma demonstração, não foram utilizados dados reais de variação do vento nem de consumo. A variação do vento foi obtida de uma distribuição Weibull típica, que é a distribuição que mais se aproxima da característica do vento coletada em logo prazo. A variação do vento no tempo foi gerada aleatoriamente baseada nessa distribuição. A curva de consumo é baseada em curvas de consumo residenciais típicas. Embora a curva de consumo tenha sido gerada aleatoriamente, o seu formato foi mantido em conformidade com as curvas típicas.Essa tese demonstrou que ESS integrado à WDPS pode trazer uma economia razoável. Mesmo usando uma distribuição de vento com baixo valor médio (5.3 m/s), a economia obtida foi de 17%.Dentre as tecnologias de ESS pesquisadas, apenas o sistema de armazenamento com bateria (BESS na sigla em Inglês) se mostrou viável para um WDPS com pequena capacidade. Dentre as quatro tecnologias de BESS pesquisadas, Chumbo-Ácido foi a que apresentou a maior economia de diesel com o menor investimento inicial e com o menor tempo de retorno do investimento.
Zhang, Xiaodong. "Power system transmission enhancement through storage." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-11242009-020211/.
Повний текст джерелаGupta, Sarthak. "Real-time Integration of Energy Storage." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78749.
Повний текст джерелаMaster of Science
Niaparast, Shervin. "ENERGY ANALYSIS OF A SOLAR BLIND CONCEPT INTEGRATED WITH ENERGY STORAGE SYSTEM." Thesis, KTH, Kraft- och värmeteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-131419.
Повний текст джерелаPiechowski, Miroslaw. "A ground coupled heat pump system with energy storage /." Connect to thesis, 1996. http://eprints.unimelb.edu.au/archive/00000724.
Повний текст джерелаDamnjanovic, Nenad. "Smart Grid Functionality of a PV-Energy Storage System." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3058.
Повний текст джерелаNeumann, Robert James. "Lifetime analysis of a composite flywheel energy storage system." Thesis, Queen Mary, University of London, 2001. http://qmro.qmul.ac.uk/xmlui/handle/123456789/26689.
Повний текст джерелаZhang, Tan. "Adaptive Energy Storage System Control for Microgrid Stability Enhancement." Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-dissertations/190.
Повний текст джерелаOcheme, Simon Eje. "Multiscale, multidimensional renewable energy generation and storage management system." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/17698/.
Повний текст джерелаQian, Hao. "A High-Efficiency Grid-Tie Battery Energy Storage System." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/29008.
Повний текст джерелаPh. D.
Gong, Yifu. "Intelligent Energy-Efficient Storage System for Big-Data Applications." Diss., North Dakota State University, 2020. https://hdl.handle.net/10365/31752.
Повний текст джерелаWu, Ding. "Control of a super-capacitor based energy storage system." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/control-of-a-supercapacitor-based-energy-storage-system(e43378a8-22ec-442a-bc87-df4adb5fb3cb).html.
Повний текст джерелаBajracharya, Quree. "Dynamic Modeling, Monitoring and Control of Energy Storage System." Thesis, Karlstads universitet, Fakulteten för teknik- och naturvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-26521.
Повний текст джерелаRobbins, Curt. "Small scale renewable energy storage system using hydrogen combustion." abstract and full text PDF (UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1456487.
Повний текст джерелаLeuschke, Rainer. "Motor integrated actuation for a flywheel energy storage system /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/7113.
Повний текст джерелаWang, Chengrui. "Application of Nano-Functional Materials in Energy Storage System." Thesis, Griffith University, 2020. http://hdl.handle.net/10072/392036.
Повний текст джерелаThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Environment and Sc
Science, Environment, Engineering and Technology
Full Text
Alajo, Oluwaseun Sunday. "EXPERIMENTAL CHARACTERIZATION OF A PCM SOLAR ENERGY STORAGE SYSTEM." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1246.
Повний текст джерелаYunus, A. M. Shiddiq. "Application of SMES Unit to improve the performance of doubly fed induction generator based WECS." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/1450.
Повний текст джерелаMaidadi, Mohaman Bello. "Packed-bed rock thermal energy storage for concetrated solar power: enhancement of storage time and system efficiency." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020914.
Повний текст джерелаBehzadnia, Peyman. "Dynamic Energy-Aware Database Storage and Operations." Scholar Commons, 2018. http://scholarcommons.usf.edu/etd/7125.
Повний текст джерелаMa, Anthony Winston. "Modeling and Analysis of a Photovoltaic System with a Distributed Energy Storage System." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/727.
Повний текст джерелаCarneheim, Stina. "Energy Storage System for Local Generation in a Grid-connected Microgrid : Sizing and analyzing an energy storage system for the Tezpur University campus." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-276944.
Повний текст джерелаAtt minska utsläppen är ett viktigt steg iatt minska den globala uppvärmningen. Vid Tezpur Universiteti Assam i nordöstra Indien genomförs nu ett projekt somskall minska användningen av diesel vid avbrott genom attdelvis ersätta dessa generatorer med andra energikällor. 2018installerades ett solkraftverk om 1 MW som en del i detta mål.Eftersom konsumtionen och produktionen från solkraftverketinte är helt synkroniserade är det delar av den produceradeelektriciteten som skickas tillbaka ut i nätet och därmed gårförlorad.Det här projektet har undersökt hur ett energilagringssystemkan användas för att öka användningen av energin produceradav solkraftverket. En annan del som undersökts är vilken typav system och vilken storlek det bör ha. Efter detta görs enenkel ekonomisk analys för att utreda hur ekonomiskt gynnsamtprojektet är.Det första som gjordes var att samla data om microsystemetpå Tezpur Universitet. Den data som samlades var om produktionenfrån solkraftverket och elkonsumtionen i de olika delarnaav universitetet. Genom olika metoder kunde man undersökahur konsumtionen och produktionen var per timme en typiskdag. Då man jämförde dessa kunde överproduktionen per dagestimeras. Besparingarna som görs beräknades genom att bytaut en del av dieselanvändningen med kostnaden av att laddaenergilagringssystemet. Detta gav tillräckligt med information föratt uppskatta återbetalningsperioden.Den bästa lösningen i det här fallet är att installera ettbatterilagringssystem bestående av litiumjonbatterier. Under antagandetatt återbetalningsperioden maximalt får var 50 % avlivslängden av batteriet kommer den största tillåtna storlekenatt vara 127 kWh. Den optimala placeringen av systemet ärvid transformatorstation 4 eftersom det är där som större delenav överproduktionen uppstår. Det är även till den som störredelen av lasten är kopplad vilket garanterar att hela batterietsladdning kan användas varje dag. Batteristorleken om 90 kWhsom föreslås i E4T MicroGrid-projektet är en bra storlek medtanke på återbetalningsperioden.
Zhang, Tan. "The Economic Benefits of Battery Energy Storage System in Electric Distribution System." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-theses/298.
Повний текст джерелаKhan, Muhammad Shahid. "Supervisory Hybrid Control of a Wind Energy Conversion and Battery Storage System." Thesis, 2008. http://hdl.handle.net/1807/11218.
Повний текст джерелаLe, Ha Thu. "Increasing wind power penetration and voltage stability limits using energy storage systems." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-05-864.
Повний текст джерелаtext
LANNA, ANDREA. "Control strategies for the integration of renewable energy sources in distribution and transmission networks." Doctoral thesis, 2016. http://hdl.handle.net/11573/875275.
Повний текст джерелаThis PhD thesis presents an innovative control strategy for the integration of renewable energy sources in distribution and transmission networks. This work is based on a multilevel control approach that takes into account the current technology, state of the art and legislative limits and considering the most promising trends. The outer loop control is based on a real time strategy for optimal power flow in presence of storage devices and wind turbine driven by Doubly Fed Induction Generators. These elements work in cooperation defining a dy- namic bus where the generated power is subject to temporal constraints, which establish a coupling between traditional power flow problems related to consecutive time periods; further the uncertainty in wind power genera- tion forecasts requires a continuous update of the planned power profiles, in order to guarantee a dynamic equilibrium among demand and supply. Model predictive control is used for this purpose, considering the dynamic equations of the storage and the wind turbine rotor as prediction models. A proper target function is introduced in order to find a trade-off between the need of minimizing generation costs and the excursions of the storage state of charge and the wind turbine angular speed from reference states. In the case study under consideration storage, wind turbines and a traditional synchronous generator are operated by the Transmission System Operator in the form of a Virtual Power Plant to cover network losses. The inner loop control is based on a real time control strategy for dy- namically balancing electric demand and supply at local level, in a scenario characterized by a HV/MV substation with the presence of renewable energy sources in the form of photovoltaic generators and an electric energy storage system. The substation is connected to the grid and is powered by an equiv- alent traditional power plant playing the role of the bulk power system. A model predictive control approach is proposed to decide in time the storage setpoint, based on the storage state of charge, the forecast demand and the forecast output of renewable plants. The two loops allow to obtain an overall control system able to minimize the generation of traditional power systems during the day-ahead market in an hand, and to respect the local load forecasts in other hand thanks the introduction of non-dispatchable renewable energy system and the energy storage ones as well as an innovative predictive control strategy. Theoretical results are reported on the stability of the proposed control scheme, which is then validated also on a simulation basis. Simulations show the effectiveness of the proposed approach in managing fluctuations of network demand and renewable generation under realistic conditions.
Chen, Yunghan, and 陳永翰. "Piezoelectric Energy Harvesting and Storage System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/59808201648171924808.
Повний текст джерела大葉大學
機械與自動化工程學系
100
Nowadays, due to the energy shortages, people begin to find new energy sources to replace the existing ones. The ways of collecting energy sources in the environment play an important role in human life where many kinds of vibration energy exist. This green energy will gradually replace the traditional energy such as fossil energy, etc. Piezoelectric materials, which have the function of electromechanical energy conversion, can be applied to converting vibration energy into electrical energy. In this study, we have proposed a piezoelectric energy harvester, which is made of MEMS technology, can capture energy from airflow-induced vibration. It converts airflow energy into electrical energy by the piezoelectric conversion effect of the oscillation of PZT wafer. Besides, we also discuss the output electrical energy caused by the controlling factors in this article. The possibility that the electrical energy can be stored in the capacitor after rectification is verified finally. Experimental results show that the harvesting device produces an output power of about 13.07μW when the excitation pressure oscillates with an amplitude of 2.0kPa and a frequency of about 52.4Hz.
Shih, Min-Cun, and 石閔存. "Development of Energy Storage System with Bidirectional Energy Control." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/19501077351542254361.
Повний текст джерела國立臺灣科技大學
電機工程系
103
The objective of this thesis was to develop an “Energy Storage System with Bidirectional Energy Control” based on conventional Digital Signal Processor. For household electricity, there will be some difference due to peak/light load or higher/lower electric rate, so the Energy Storage System in this thesis was applied in smart home to support Home Energy Management System to adjust and allocate power. The Energy Storage System includes bidirectional full bridge inverter, DC bus capacitor, bidirectional DC converter and battery. The feature of this system is to use the bidirectional power converter to adjust the charging/discharging time of the battery according to the energy plan scheduled by the Home Energy Management System to achieve instant home energy management and then enhance peak-shaving effect in order to reduce power usage and cost. The control strategy of the circuit is to use the bidirectional full bridge inverter with Predictive Current Control method to dispatch the current from the AC-grid. The operating mode can be divided into Grid-Connected mode and Power Factor Correction mode. While Grid-Connected mode enables the inverter to invert the power of the DC bus capacitor through the inverter to generate sinusoidal wave identical to the AC-grid, Power Factor Correction mode enables the inverter to rectify the power of the AC-grid through the inverter and feed it to the DC bus capacitor. On the other hand, the bidirectional DC converter is placed between the battery and the DC bus capacitor, and the operation mode can be set into Buck/Boost converter mode to regulate the voltage of the capacitor by using PI voltage regulation technique. The central core of the Energy Storage System is a high-efficiency Digital Signal Processor (TMS320F28335 produced by Texas Instruments.) The energy management and control strategies were accomplished by software in order to reduce the cost of hardware circuitry. Furthermore, this thesis has designed a 350W “Energy Storage System with Bidirectional Energy Control” and proved the feasibility of the thesis.
Datta, Ujjwal. "Battery Energy Storage System for Renewable Energy Integrated Power System Stability Enhancement." Thesis, 2020. https://vuir.vu.edu.au/41874/.
Повний текст джерелаMartinez, Ivan Curtis, and 馬依凡. "Utilizing Energy Storage System to Improve Power System Vulnerability." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/31607641894693148123.
Повний текст джерела國立中山大學
電機工程學系研究所
100
In this thesis, security measures and vulnerability mitigation are mainly addressed. How to improve the system vulnerability is one of the main issues for power system operation and planning. Recent research revealed that Energy Storage Systems (ESSs) have a great potential to be used to improve system vulnerability. A vulnerability assessment is proposed in this thesis to identify the impact factors in the power systems due to generation outage and line outage. A Bus Impact Severity (BIS) analysis is then proposed and used to find the vulnerable buses in the system. The buses with the larger BIS value defined in this thesis are the better locations for ESSs placement. Formulations for optimal locations and capacities of ESSs placement are derived and then solved by Genetic Algorithm (GA). Test results show that the proposed method can be used to find the optimal locations and capacities for ESSs for system vulnerability improvement.
Lin, Keng-Hsien, and 林庚賢. "A study of flywheel energy storage system." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/50025808224798349525.
Повний текст джерела國立勤益科技大學
資訊與電能科技研究所
95
Hi-tech industry has become a necessary trend of industry development in Taiwan. However, despite of the research and development technology, the instability of power system will cause serious influence on both producing efficiency and amount of the Hi-tech industry. Therefore, supplied by stable power is a very important link to the basis of Hi-tech industry. For this idea, the study provides flywheel storage uninterruptible power supply. At first, we aimed at the flywheel energy storage system (FESS) and simulated the storage effect of FESS. Measure the features of recharge and discharge as the reference of control circuit. Then, according to the testing results, we can design a simulation circuit and test it to find out if the circuit can support the load stably when the power is interrupted. Realize the designed flywheel energy storage system and test its characteristic. Know from the test results, the output of this flywheel system is three-phrase AC variation power. So in this study, use power electronics techniques (pulse-width modulation, PWM) to have the system supply stable power. Compared to traditional batteries, this storage system doesn’t need high current and much time to recharge. In this study, improve the flywheel energy storage system and its equipment. Keep a longer power supply for industrial power consumption and lower all the costs and make the best economy efficiency.