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[pt] EQUILÍBRIOS DE NASH EM MERCADOS ELÉTRICOS COM FUNÇÕES DE OFERTA QUADRÁTICAS COTADAS / [en] NASH EQUILIBRIA IN POOL-BASED ELECTRICITY MARKETS WITH BOUNDED QUADRATIC SUPPLY FUNCTIONSMARCELO MORAES RESENDE 20 June 2023 (has links)
[pt] Este trabalho analisa um mercado de eletricidade em que os geradores
declaram funções de custo quadráticas para o operador da rede e também
suas disponibilidades máximas de produção. O operador, então, determina as
quantidades a serem produzidas por cada gerador de modo a atender a uma
demanda inelástica, ao menor custo possível. Estabelecem-se alguns resultados
que permitem computar os equilíbrios de Nash deste modelo e descrevem-se
algumas de suas propriedades, tais como condições de existência. / [en] This work analyzes an electricity market in which generators declare
quadratic cost functions for the grid operator and also the maximum capacity
available. The operator then determines the quantities that each generator
must produce to meet an inelastic demand at the lowest possible cost. Some
results are established that allow computing the Nash equilibria of this model
and some of their properties are described, such as existence conditions.
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Benefit and value of Li-Ion batteries in combination with largescale IRES : The case of solar PV in India and wind power in SwedenErdozia Perez de Heredia, Agurtzane, Ferraris, Alessandro January 2017 (has links)
Li-ion batteries have demonstrated to be a very flexible source with energystorage capability. Due to their scalability and wide range of power and energydensities, they are suitable for several applications. Li-ion storage cantherefore provide different services, the remuneration of which depends onthe electricity market of the country. In this work, two different case studiesof combination of Li-ion batteries with large-scale renewable power plantshave been investigated: batteries with solar PV in India and with wind powerin Sweden. Simulation models have been developed to assess the operationand profitability potential of different services in these two case studies. Themodels have been built using control algorithms, linear optimization (LP) andstochastic programming techniques. The results show that the use of batteriesfor solar power output smoothing under a power purchase agreement canbe a profitable business case in India. Moreover, batteries providing primaryfrequency regulation (FCR-N) in Sweden show to have a positive economicvalue. System breakeven costs to make the stacking of wind power productionimbalance compensation and FCR-N services profitable have been found,which based on conservative price expectations should be achieved by 2022. / Li-ion batterier har visat sig vara en mycket effektiv källa för lagring av energi.Tack vare deras skalbarhet och det breda utbudet av kraft och energidensiteterhar de flera användningsområden. Li-ion batterier kan därför användas föratt tillhandahålla olika typer av tjänster vars ekonomiska ersättning beror avlandets elmarknad. Detta arbete undersöker två fallstudier av Li-ion batterieri kombination med storskaliga kraftverk som drivs av förnybara energikällor:batterier i kombination med solkraft i Indien och vindkraft i Sverige. Simuleringsmodellerhar utvecklats för att undersöka driften och lönsamhetspotentialenför olika tjänster i de två fallstudierna. Modellerna baserar sig påkontrollalgoritmer, linjär optimering och stokastisk programmeringsteknik.Resultaten visar att användningen av batterier för utjämning av solenergi enligtett kraftköpavtal kan vara lönsamma i Indien. Dessutom har användningenav batterier för primärreglering (FCR-N) visat sig ha ett positivt ekonomisktvärde i Sverige. Breakeven kostnaderna för att göra kombinationen av vindkraftsproduktionensbalanskompensering och FCR-N tjänster lönsamma harhittats, vilket ska uppnås senast år 2022 baserat på en konservativ prisprognos.
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