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Dissertations / Theses on the topic 'Power reserve'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

REI, ANDREA DE MATTOS. "METHODOLOGIES FOR POWER SYSTEMS SPINNING RESERVE EVALUATION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1992. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=14191@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>Este trabalho trata das metodologias disponíveis mais utilizadas para a avaliação da reserva girante em sistemas de potência. São apresentadas abordagens determinísticas e probabilísticas. Uma grande variedade de aspectos são considerados e organizados de modo a se obter uma taxionomia metodológica. A aplicação da taxionomia sugerida é ilustrada com a análise de um sistema hipotético, o IEEE Reliability Test System, e do sistema brasileiro das regiões Sul/Sudeste/Centro-Oeste. Com base nos resultados obtidos com a aplicação de tal

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2

Watson, Nathan. "Structural power and the dollar reserve system." Thesis, Watson, Nathan (2014) Structural power and the dollar reserve system. Masters by Coursework thesis, Murdoch University, 2014. https://researchrepository.murdoch.edu.au/id/eprint/24672/.

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International Relations (IR) as a discipline of study has traditionally been acutely focused on the interaction between states and the consequences of these interactions.1 War, alliance making and the balance of power in the international system have long been considered a primary concern of many IR scholars. Since the end of World War II (WW2) however, the undeniable onset of globalisation has forced the discipline and all its various schools of thought to reassess the nature of the international system, its actors, and the significance of a range of new relationships between states and non-s

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3

BRIGATTO, ARTHUR DE CASTRO. "ENSURING RESERVE DEPLOYMENT IN HYDROTHERMAL POWER SYSTEMS PLANNING." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=27876@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>Atualmente a metodologia correspondente ao estado da arte utilizada para o planejamento de médio-/longo-prazo da operação de sistemas elétricos de potência é a Programação Dual Dinâmica Estocástica (PDDE). No entanto, a tratabilidade computacional proporcionada por este método ainda requer simplificaçõeses consideráveis de detalhes de sistemas reais de maneira a atingir performa

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4

Proctor, R. L. "Management of power system reserve in a competitive environment." Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390867.

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5

LIMA, Maira Egito Alves de. "Gestão participativa na reserva extrativista Acaú-Goiana: o papel da comunidade de Acaú - PB." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/17429.

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Submitted by Irene Nascimento (irene.kessia@ufpe.br) on 2016-07-15T16:46:07Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação Maira Egito Prodema 2016 (1).pdf: 4653380 bytes, checksum: 8eb5a22bfdd992c2a7eef0315f78955f (MD5)<br>Made available in DSpace on 2016-07-15T16:46:07Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação Maira Egito Prodema 2016 (1).pdf: 4653380 bytes, checksum: 8eb5a22bfdd992c2a7eef0315f78955f (MD5) Previous issue date: 2016-02-29<br>O Sistema N

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6

Gesino, Alejandro J. [Verfasser]. "Power reserve provision with wind farms : Grid integration of wind power / Alejandro J. Gesino." Kassel : Kassel University Press, 2011. http://d-nb.info/1017005591/34.

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7

Rios, Zalapa Ricardo. "Reactive reserve management in the operational planning of power systems." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46528.

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8

SILVA, LEONARDO XAVIER DA. "OPERATING POWER RESERVE AS ANCILLARY SERVICE: MARKET MECHANISM FOR PURCHASING." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2001. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=1914@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>No modelo econômico tradicional, o sistema elétrico podia ser constituído por empresas verticalizadas, isto é, os serviços de geração, transmissão e distribuição podiam ser providos por uma mesma empresa. Nesta estrutura, serviços como reserva de potência, suporte de reativos, reserva de transmissão, ou seja, os chamados Serviços Ancilares à operação do sistema elétrico, não eram computados com custos específicos a serem restituídos, já que os mesmos encontravam-se agregados ao preço da energia elétrica. No novo modelo e

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9

O'Kane, Patrick. "Development of an emergency reserve capability for embedded generation." Thesis, Queen's University Belfast, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284392.

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10

Chan, Chi-yiu, and 陳志銚. "The application of insurance theory to power system operating reserve market." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B3124399X.

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11

Timonin, Ann Veronica. "The power of silence: The question of reserve in four Victorian novels." Thesis, University of Ottawa (Canada), 1999. http://hdl.handle.net/10393/8809.

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Victorian women's silence has been the subject of investigation by many feminist critics, and most have understood it as a function of repression. More recently, however, feminists have begun to recognise more productive levels of silence. This thesis examines four Victorian novels that show that silence is not a stable social sign with a clear meaning but an aspect of the Victorian convention of femininity that can mean different things and be used in different ways. Chapter One looks at silence and choice in Elizabeth Gaskell's North and South, tracing the implications of choosing reserve.

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12

Timonin, Ann. "The power of silence, the question of reserve in four Victorian novels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0001/MQ45252.pdf.

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13

Keung, Ping-Kwan. "Windfarm operations: control of windfarm power and kinetic energy as fast reserve." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18716.

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Increase of wind power penetration leads to a reduction in regulated power production and reduction in primary reserves that support the system frequency from excessive drop during a generation outage. Starting from the control of a single windturbine generator (WTG), this thesis proposes two modes of operation for windfarms. (a) Normal operation, in which modern windfarms have the wherewithal to produce regulated power when the lowest windspeed can be reliably predicted an hour ahead. This capability is demonstrated by simulating a windfarm made up of 24 WTGs using a set of 10 1-hour long win

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14

McIlwaine, Stephen Andrew. "Reduction of spinning reserve requirements on the Northern Ireland electrical power network." Thesis, Queen's University Belfast, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317130.

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15

Unkovski, Goran. "Purchasing power parity and Reserve Bank intervention in the foreign exchange market." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/5681.

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Includes bibliographical references.<br>This paper tests the behaviour of the PPP relationship in South Africa between 1993 and 2003 using cointegration techniques. The period under review is divided into two sub-phases. The first, from January 1993 to May 1998, encompasses the changing political situation and the initial effects of global integration for South Africa. It is found that the PPP relationship holds during this time frame.

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Smith, Mary 1977. "Representation and power : "The eastern door"." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79809.

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This thesis explores processes of self-representation in Indigenous media by analyzing the work of a weekly newspaper, The Eastern Door, of the Mohawk community of Kahnawake, Quebec (Canada). The thesis examines articulations of power in relations between State and Aboriginal communities, demonstrating the importance of such a medium for the conceptualization of Aboriginal Nation and construction of identity in the contemporary context. The Eastern Door is an important vehicle for communicating Mohawk identity and nationhood, a role it consciously plays, as part of its commitment to pol

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17

MARCATO, ANDRE LUIS MARQUES. "EVALUATION OF THE REQUIREMENTS AND COMMERTIALIZATION OF THE POWER RESERVE IN COMPETITIVE SYSTEMS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1998. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=7465@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>CENTRO DE PESQUISA DE ENERGIA ELÉTRICA<br>Este trabalho apresenta diversas metodologias para o cálculo de pagamento pela reserva de capacidade do sistema. A remuneração da reserva oferecida pelo sistema vem sendo cada vez mais discutida, principalmente, devido ao aumento de competição no setor elétrico e sua possível influência negativa na confiabilidade de suprimento. O estudo da confiabilidade do sistema tem uma ligação direta com este problema, pois os seus índices podem medir a importância da reserva de potência para o

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18

Pörhö, H. (Henri). "The use of batteries as a frequency containment reserve in the power system." Bachelor's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201906042315.

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Abstract. The world is constantly shifting towards increasing the amount of renewable energy use for electricity generation. Many of the renewable energy sources have an unpredictable nature, which can cause issues in the power system. One of the issues with increased renewable energy penetration is more unstable power system due to constantly fluctuating power generation. For this purpose, energy storage systems with fast ramp up and down times are required to stabilize the power system. This thesis is exploring the possibility to use batteries as a containment reserve in the power system.

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19

Hollis, Preston Taylor. "Redesign for energy and reserve markets in electric power networks with high solar penetration." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/45832.

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Favorable price trends and increasing demand for renewable energy sources portend accelerating integration of solar photovoltaic (PV) generation into traditional electric power system networks. Managing the variable output of massive PV resources makes system frequency regulation more complex and expensive. ISOs must procure additional regulation and load following capacity, while power plants must supply more regulation work. In contrast to costly physical storage solutions, this thesis proposes to address the issue by reconfiguring the electricity market pricing structure to translate all

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20

Menin, Michel. "Parametric sensitivity study for wind power trading through stochastic reserve and energy market optimization." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-257502.

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Trading optimal wind power in energy and regulation market offers possibil-ities for increasing revenues as well as impacting security of the system in apositive way[33]. The bidding in both energy and regulation markets can bedone through stochastic optimization process of both markets.Stochastic optimization can be possible once the probabilistic forecst is avail-able through ensemble forecast methodology. For stochastic optimization, thepost-processing of the ensembles to generate quantiles that will be used in op-timization can be accomplished by employing different methodology. In thisstu

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21

Macdonald, Fraser Ross. "Parks, people, and power: the social effects of protecting the Ngel Nyaki Forest Reserve in eastern Nigeria." Thesis, University of Canterbury. Sociology and Anthropology, 2007. http://hdl.handle.net/10092/978.

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The thesis outlines the impacts produced on local indigenous people by the protection of the Ngel Nyaki Forest Reserve in Taraba State, eastern Nigeria. After locating my work in various fields of literature and providing detailed background information on the area in which I conducted my fieldwork and the people who inhabit that area, I proceed onto the core of my thesis, which is two-fold. Firstly, I outline the impacts produced on the local people who inhabit the settlements surrounding the reserve. I elucidate the social, cultural, psychological, economic, and residential impacts of protec

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22

Mametja, Mamolotje Charles Eric. "Local community participation in tourism in the case of Manyeleti Game reserve, Limpopo Province, South Africa." Pretoria : [S.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-07302008-090251/.

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23

RIBEIRO, PABLO MOTTA. "PRICING THE ANCILLARY SERVICES OF REACTIVE POWER SUPPLY AND GENERATION RESERVE WHEN PROVIDED BY GENERATORS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=6745@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>Este trabalho apresenta metodologias para definir a remuneração dos geradores que provêem serviços ancilares em função do benefício proporcionado ao sistema. São analisados os serviços ancilares de suporte de potência reativa e reserva de potência. Para o serviço ancilar de suporte de potência reativa, o valor do benefício proporcionado pelos geradores é obtido por meio do custo evitado de alocação de novas fontes de potência reativa. Já para o serviço ancilar de reserva de potência, o benefício é calculado a partir da redução observ

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24

Bologna, Sarah. "Nature and power : a critique of 'people-based conservation' at South Africa's Madikwe Game Reserve." Doctoral thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/3637.

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25

Sousa, Thales. "Valoração do fornecimento de serviços ancilares a partir de usinas hidroelétricas." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-07122006-144442/.

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O presente trabalho propõe o desenvolvimento de uma metodologia de valoração da reserva de potência ativa e do suporte de potência reativa a partir de plantas hidroelétricas. Inicialmente foi apresentado um histórico que descreveu o que foi definido e regulamentado sobre estes serviços em diferentes mercados de energia. Em seguida, com o objetivo de valorar o serviço de reserva de potência ativa foi realizada a mensuração da perda de eficiência, resultante do fornecimento deste serviço, que após convertida em MWh foi relacionada à perda de oportunidade, caso essa energia fosse comercializada n

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26

Lee, Alec Mitchell. "Poder produtivo e liderança no sistema monetário internacional: designando responsabilidade por ajustes de politica." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/101/101131/tde-07072015-105743/.

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O futuro das relações monetárias entre países é incerto. Enquanto a economia mundial há tempos tem contado com uma moeda internacional dominante, com o seu emissor desempenhando o papel de líder monetário internacional, existe uma série de fatores que coloca em cheque a continuação desse arranjo. Entre esses fatores estão a diminuição do papel dos Estados Unidos no crescimento econômico mundial, a crescente autonomia das políticas monetárias dos países emergentes e em desenvolvimento e a emergência de possíveis desafios ao dólar americano como a moeda chave de reserva internacional. A situação

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27

Pearmine, Ross Stuart. "Review of primary frequency control requirements on the GB power system against a background of increasing renewable generation." Thesis, Brunel University, 2006. http://bura.brunel.ac.uk/handle/2438/724.

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The system frequency of a synchronous power system varies with the imbalance of energy supplied and the electrical energy consumed. When large generating blocks are lost, the system undergoes a frequency swing relative to the size of the loss. Limits imposed on the magnitude of frequency deviation† prevent system collapse. Operation of frequency responsive plant to control frequency, results in lower machine efficiencies. Changes to the generation mix on the British transmission system have occurred in the past ten years, when the response requirement was last reviewed. Future increased levels

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28

Yilmaz, Oguz. "Participation Of Combined Cycle Power Plants To Power System Frequency Control: Modeling And Application." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607228/index.pdf.

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This thesis proposes a method and develops a model for the participation of a combined cycle power plant to power system frequency control. Through the period of integration to the UCTE system, (Union for Coordination of Transmission of Electricity in Europe) frequency behavior of Turkey&rsquo<br>s grid and studies related to its improvement had been a great concern, so is the reason that main subject of my thesis became as &ldquo<br>Power System Frequency Control&rdquo<br>. Apart from system-wide global control action (secondary control)<br>load control loops at power plants, reserve power an

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29

Andersson, Oskar. "Inclusion of Wind Turbines into Frequency Support Services : Exploring frequency stability issues and comparing regulation power market products." Thesis, Uppsala universitet, Institutionen för elektroteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-435076.

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There is a trend in Sweden towards increasing the electricity production from renewable energy sources in the electric grid. The increased share of renewables could be seen as essential for Sweden to be able to meet the obligated climate goals. Integration of renewables will enable Sweden to be a progressive part in reducing greenhouse gases and decreasing the global warming. However, one issue with renewable energy sources is the inverter governed production. This, together with the decommission of larger synchronous generators, results in decreasing the inertia and increasing the instability

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30

Wo, Chung. "PERFORMANCE ASSESSMENT OF THE CASE WESTERN RESERVE UNIVERSITYWIND TURBINE AND CHARACTERIZATION OF WIND AVAILABILITY." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1383338732.

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31

McClurg, Josiah Caleb. "Reduction of reserve margin with increasing wind penetration: a quantitative first-principles analysis." Thesis, University of Iowa, 2012. https://ir.uiowa.edu/etd/3350.

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Access to reliable electric power is considered by the developed world to be a minimum requirement for a reasonable standard of living. In addition to meeting a fluctuating demand, the modern electricity industry must now integrate intermittent generation sources like wind into the grid. Reserve margin allocation (RMA) for an acceptable loss of load expectation (LOLE) allows traditional generators to maintain grid reliability in the presence of small penetrations of wind energy. However, traditional RMA over-allocates the reserve capacity in the presence of short-term intermittency mitigation

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32

Pires, Diego Bruno De Souza. "Judicializa??o da educa??o no Brasil: Tend?ncias da produ??o do conhecimento e perspectivas para a exequibilidade do direito (2000-2010)." Universidade Estadual de Feira de Santana, 2017. http://localhost:8080/tede/handle/tede/569.

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Submitted by Jadson Francisco de Jesus SILVA (jadson@uefs.br) on 2018-01-26T22:13:09Z No. of bitstreams: 1 DISSERTA??O de Diego Bruno de Souza Pires - Mestrado em EDUCA??O - UEFS.pdf: 1389424 bytes, checksum: 422a49b848bb4125c5c8f71f3b3e05b0 (MD5)<br>Made available in DSpace on 2018-01-26T22:13:09Z (GMT). No. of bitstreams: 1 DISSERTA??O de Diego Bruno de Souza Pires - Mestrado em EDUCA??O - UEFS.pdf: 1389424 bytes, checksum: 422a49b848bb4125c5c8f71f3b3e05b0 (MD5) Previous issue date: 2017-07-20<br>This research deals with judicialization of education, highlighting the characteristics of aca

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Witmer, Chad A. "Effects of acute exposure to moderate hypoxia during different phases of repeated-sprint cycling on fatigue and anaerobic power reserve." Diss., Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/135073.

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Kinesiology<br>Ph.D.<br>The purpose of this study was to investigate the effects of acute moderate hypoxia (14.5% inspired oxygen fraction) on the magnitude of fatigue development during the different phases (work, recovery, and both) of a repeated-sprint test (10 x 6-s sprints interspersed with 30-s recovery) in healthy, trained males. This study also sought to investigate the relationship between anaerobic power reserve and fatigue during the aforementioned repeated-sprint test. Fourteen exercise-trained males completed four trials of the repeated-sprint test under each of the following cond

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Kotenko, Diana G. "Prospective Reappointment and the Monetary Policy Preferences of the Federal Open Market Committee Members." Kent State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=kent1246273422.

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Kelly, Bryan W. "Managing Generation and Load Scheduling of the Electrical Power System Onboard a Manned Deep Space Vehicle." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1523290997302792.

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Le, Louarn Theobald. "Optimization Of A Virtual Power Plant In The German Electricity Market." Thesis, KTH, Elkraftteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217380.

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Distributed energy sources are becoming more and more important in the German electricitynetwork. One solution to manage this growing number of distributed assets liesin the Virtual Power Plant concept. A Virtual Power Plant aggregates decentralizedgenerators and loads to behave like a large power plant. Based on new technologies, ituses advanced communication technologies to provide different services (generation ofenergy, steering of power systems, balancing services ...). This thesis proposes a mixedintegerstochastic model of a Virtual Power Plant. The participation to different productsis

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Edwall, Bill. "Virtual Power Plant Optimization Utilizing the FCR-N Market : A revenue maximization modelling study based on building components and a Battery Energy Storage System. Based on values from Sweden's first virtual power plant, Väla." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279520.

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Renewable energy resources are projected to claim a larger part of the Swedish power mix in coming years. This could potentially increase frequency fluctuations in the power grid due to the intermittency of renewable power generating resources. These fluctuations can in turn cause issues in the power grid if left unchecked. In order to resolve these issues, countermeasures are employed. One such countermeasure is for private actors to regulate power; in exchange they are financially compensated through reserve markets. The reserve market studied in this thesis is called Frequency Containment R

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38

Jacobsson, Erik. "Dimensionering av UPS-system och generatorer för reservkraftsystem på sjukhus och flygplatser." Thesis, Karlstads universitet, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-69399.

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Sjukhus och flygplatser är precis som resten av samhället, beroende av el. Med dagens teknik är sjukhus och flygplatser högteknologiska ochväldigt störningskänsliga för elbortfall,vilket gör det viktigt att ha en stabil och säker kraftförsörjning utan avbrott. Ett avbrott i strömförsörjningen kan orsaka allvarliga,till och med livsfarliga konsekvenser. Att säkerställa ett bra och redundant reservkraftsystemär väsentligt för sjukhusen och flygplatserna. Syftet med studien var att undersöka samt ta fram reservkraftsystem med redundansförsjukhus och flygplatser. Under arbetets gång har litteratur

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39

Lundkvist, Fridh Ylva. "Legitimising and Delegitimising the Monetary System : Competing Portrayals of Fractional Reserve Banking in Knowledge Discourse." Thesis, Uppsala universitet, Arkeologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-303238.

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This is a study of how knowledge producing actors, like professors of economics, ecological economics and investigators at public institutions, portray the monetary system in general and fractional reserve banking specifically. The methodology of Political Discourse Analysis, with focus on argumentation and legitimisation, is used to identify and compare how different actors portray the monetary system. The outcome shows that there exist competing knowledge discourses that are diametrically different in how they define keywords and describe the relation between the monetary system, societal po

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Shayesteh, Ebrahim. "Efficient Simulation Methods of Large Power Systems with High Penetration of Renewable Energy Resources : Theory and Applications." Doctoral thesis, KTH, Elektriska energisystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158946.

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Electrical energy is one of the most common forms of energy these days. Consequently, electric power system is an indispensable part of any society. However, due to the deregulation of electricity markets and the growth in the share of power generation by uncontrollable renewable energies such as wind and solar, power system simulations are more challenging than earlier. Thus, new techniques for simplifying these simulations are needed. One important example of such simplification techniques is the power system reduction. Power system reduction can be used at least for four different purposes:

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Cardozo, Arteaga Carmen. "Optimisation of power system security with high share of variable renewables : Consideration of the primary reserve deployment dynamics on a Frequency Constrained Unit Commitment model." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLC024/document.

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Le placement de production (UC pour unit commitment) est une famille de problèmes d'optimisation qui déterminent l’état et la puissance de consigne des groupes de production pour satisfaire la demande électrique à moindre coût. Traditionnellement, une contrainte de sûreté détermine un certain volume de capacité raccordée disponible, appelé la réserve, destinée à gérer l'incertitude. Néanmoins, dans les petits systèmes la contrainte de réserve fixe peut entraîner dans certains cas une violation du critère N-1 bien que le volume de réserve minimale soit respecté. Plus récemment, la part croissan

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Skog, Nestorovic Benjamin, and Douglas Lindén. "Techno-economic analysis of Battery Energy Storage Systems and Demand Side Management for peak load shaving in Swedish industries." Thesis, KTH, Kraft- och värmeteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277824.

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The Swedish electrical grid has historically been robust and reliable, but with increased electrification in numerous sectors, out-phasing of nuclear power and a high market diffusion of wind power, the system is now facing challenges. The rotational energy in the system is expected to decrease as a result of higher shares of intermittent energy sources, which can affect the stability of the grid frequency negatively. To manage increased frequency drops, the new Fast Frequency Reserve (FFR) market will be implemented by June 2020 in the Nordic power system. Simultaneously, it is expected that

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Ellerman, Diana Drita. "Effective Combat Leadership: How do Individual, Social, and Organizational Factors in the U.S. Army Reserve Cultivate Effective Women's Leadership in Dangerous Contexts?" Antioch University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1456154602.

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Izadkhast, Seyedmahdi. "Aggregation of Plug-in Electric Vehicles in Power Systems for Primary Frequency Control." Doctoral thesis, KTH, Elkraftteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-205286.

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The number of plug-in electric vehicles (PEVs) is likely to increase in the near future and these vehicles will probably be connected to the electric grid most of the day time. PEVs are interesting options to provide a wide variety of services such as primary frequency control (PFC), because they are able to quickly control their active power using electronic power converters. However, to evaluate the impact of PEVs on PFC, one should either carry out complex and time consuming simulation involving a large number of PEVs or formulate and develop aggregate models which could efficiently reduce

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Gonzales, Selma Lúcia de Moura. "A territorialidade militar no Brasil: os Tiros de Guerra e a estratégia da presença." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/8/8136/tde-31032009-143246/.

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Os Tiros de Guerra são Órgãos de Formação da Reserva (OFR) do Exército Brasileiro que preparam o jovem para compor a reserva mobilizável da Força Militar terrestre, porém com especificidades e objetivos distintos dos da formação do soldado-recruta. Essa tese objetiva analisar a territorialidade militar terrestre no Brasil práticas e ações que se materializam no território e corroboram para sua apropriação a partir do estudo da distribuição e atuação dos Tiros de Guerra e a relação destes com o que preconiza a estratégia militar de presença, definida como uma das estratégias de organização e

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Braun, Arthur. "Le pouvoir régulateur du régime politique : étude d’une notion de droit constitutionnel institutionnel." Thesis, Université de Lorraine, 2019. http://docnum.univ-lorraine.fr/ulprive/DDOC_T_2019_0139_BRAUN.pdf.

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Héritage de la Révolution française, l’expression « pouvoir régulateur » désigne l’idée, récurrente en droit constitutionnel, d’une tierce instance spécifiquement chargée d’assurer le fonctionnement régulier des institutions politiques. D’abord confié à un organe ad hoc spécialement créé à cette fin, le pouvoir régulateur devient au XIXe siècle l’apanage d’un monarque constitutionnel idéalisé. Strictement cantonné dans la sphère institutionnelle et ainsi éloigné du gouvernement comme des querelles partisanes, le roi serait uniquement chargé de maintenir l’équilibre entre les pouvoirs actifs. L

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Siniscalchi, Minna Sara. "Advanced wind farm control strategies for enhancing grid support." Doctoral thesis, TDX (Tesis Doctorals en Xarxa), 2019. http://hdl.handle.net/10803/669244.

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Nowadays, there is rising concern among Transmission System Operators about the declining of system inertia due to the increasing penetration of wind energy, and other renewable energy systems, and the retirements of conventional power plants. On the other hand, by properly operating wind farms, wind generation may be capable of enhancing grid stability and ensuring continued security of power supply. In this doctoral thesis, new control approaches for designing wind farm optimization-based control strategies are proposed to improve the participation of wind farms in grid support, specially in

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Taormina, Bastien. "Potential impacts of submarine power cables from marine renewable energy projects on benthic communities A review of potential impacts of submarine power cables on the marine environment: Knowledge gaps, recommendations and future directions, in Renewable and Sustainable Energy Reviews 96, November 2018 Optimizing image-based protocol to monitor macroepibenthic communities colonizing artificial structures, in ICES Journal of marine science 77(2), March 2020." Thesis, Brest, 2019. http://theses-scd.univ-brest.fr/2019/These-2019-SML-Ecologie_marine-TAORMINA_Bastien.pdf.

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Dans un contexte de développement rapide des projets d’énergies marines renouvelables, le but de cette thèse était d’améliorer les connaissances sur les impacts potentiels des câbles électriques sous-marins sur les écosystèmes benthiques côtiers. En se focalisant sur la phase de fonctionnement, ce travail était essentiellement dédié à la caractérisation de l’effet récif généré par ces câbles et leurs structures associées (protection, stabilisation) sur les communautés épibenthiques fixées et la mégafaune mobile. L’étude était principalement basée sur l’utilisation d’images sous-marines (photo

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Pinto, Guilherme Newton do Monte. "A reserva de jurisdição." Universidade Presbiteriana Mackenzie, 2009. http://tede.mackenzie.br/jspui/handle/tede/1268.

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Made available in DSpace on 2016-03-15T19:34:51Z (GMT). No. of bitstreams: 1 Guilherme Newton do Monte Pinto.pdf: 1223982 bytes, checksum: 4aba3128ebe6ae2eb0b4183a4aa2c104 (MD5) Previous issue date: 2009-11-30<br>The separation of powers, in its historic design, should be glimpsed in its multiple dimensions social, legal, political and organic-functional and if it´s certain that currently it´s not taken into account its social and political dimensions, it has, in the current stage of contemporary constitutional State, the exact meaning of conciliation, equilibrium and harmony between its

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Buchanan, William. "Statistical Analysis of Wind Data and Modeling Regulating Reserves." ScholarWorks @ UVM, 2012. http://scholarworks.uvm.edu/graddis/33.

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The desire to reduce dependence on fossil fuels is resulting in numerous policy incentives for increased renewable energy sources within the power grid. Because wind generation is arguably the most affordable per MWh of the renewable energy sources it is growing nearly as quickly as conventional generation techniques. Due to this significant increase in wind penetration levels, numerous largescale wind integration studies have been produced to determine the reliability impacts of large-scale wind power. Using data from two large US wind interconnection studies, this thesis provides eviden

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