The National Interconnected System
Mostrando 1-12 de 18 artigos, teses e dissertações.
-
1. Comparative study of energy costs in irrigation according to the new brazilian electricity tariff model
ABSTRACT The tariff flags on Brazil came into force in January 2015, applied to all electrical distribution agents of the national interconnected system (SIN) and all final consumers are being charged for this new model. Given this, the cost of electricity in irrigation suffered representative additions involving searches of alternatives, such as the use of
Eng. Agríc.. Publicado em: 2016-10
-
2. Network modelling of palm biodiesel plants to supply the isolated electric power systems of Pará state
Despite the great advance brought by the National Interconnected System (NIS), which is able to provide clean hydroelectric power to almost all Brazilian customers, there are still cities supplied by power generated from fossil fuel, which are subsidized by taxes, they are called Isolated Electric Power Systems (IEPS). Pará State, that has 34 cities with IE
Prod.. Publicado em: 01/10/2013
-
3. Estimativa do indice de nacionalização dos sistemas fotovoltaicos no Brasil / Estimates of nationalization index of PV systems in Brazil
The Law nº 10.438/02 established the Program of Incentives for Alternative Electric Power Sources - PROINFA, which is the only national program aimed to foster alternative renewable energy sources and to increase the share of electric energy production from enterprises based on wind power, small hydropower plants and biomass in the interconnected national p
Publicado em: 2009
-
4. Um modelo multiescalas de autômatos celulares para pandemia da dengue / A multiscale cellular automata model for the pandemic of Dengue
The dramatic resurgence and emergence of epidemic dengue and dengue hemorragic fever in the last two decades neatly define a global pandemic. The dispersion of dengue viruses combines local infections of humans bited by infective mosquitoes inside a city with long-range transmissions to non-infective vectors that feed the blood of infected people arriving fr
Publicado em: 2009
-
5. Artificial neural networks applied on the forecast of the spot market prices for electricity. / Redes neurais artificiais aplicadas na previsão de preços do mercado spot de energia elétrica
A comercialização de energia elétrica no Brasil e no mundo sofreu diversas modificações nos últimos 20 anos. Com o objetivo de alcançar o equilíbrio econômico entre oferta e demanda do bem chamado eletricidade, os agentes deste mercado seguem as regras definidas pela sociedade (governo, empresas e consumidores) e também as leis da natureza (hidrolo
Publicado em: 2009
-
6. Conflito, consenso, democracia e capitalismo em estados periféricos : o processo de privatização do setor elétrico no Brasil e na Argentina
This thesis analyzes the political and economical arguments that furnished a broad consensus for the implementation of the structural adjustments in the 1990s, amongst them the privatization programme of the electrical energy sector in Brazil and Argentina. It is considered whether the restructuring of the electric section accomplished the presuppositions on
Publicado em: 2009
-
7. Análise econômica financeira comparativa da autoprodução direta ou conectada no SIN - um estudo de caso. / The comparative economic financial analysis of the direct self production or connected to SIN (National Interconnected System) case analysis.
Este trabalho tem como objetivo principal verificar a viabilidade econômica financeira da autoprodução direta e interligada, isto é, elaborar uma comparação entre uma usina hidrelétrica ligada diretamente à unidade de consumo, e uma usina ligada ao Sistema Interligado Nacional, com potência e energia asseguradas. Para isso, foram utilizados, como pr
Publicado em: 2009
-
8. TIME SERIES APPLIED TO OPERATION PLANNING OF THE NATIONAL INTERCONNECTED ELECTRIC SYSTEM / SÉRIES TEMPORAIS APLICADAS AO PLANEJAMENTO DA OPERAÇÃO DO SISTEMA INTERLIGADO NACIONAL - SIN
The natural vocation of Brazil for the hydroelectricity made the National Interconnected Electric System ¿ NIS to be developed with strong predominance of hydroelectric origin creation. However, choosing for a hydroelectricity base you have to deal with significant uncertainness associated to the rivers inflows and all hydrographical basins of the country.
Publicado em: 2008
-
9. MULTICRITERIA OPTIMISATION OF HYDROTHERMAL SYSTEMS OPERATION USING GENETIC ALGORITHMS / OTIMIZAÇÃO MULTICRITÉRIO DA OPERAÇÃO DE SISTEMAS HIDROTÉRMICOS UTILIZANDO ALGORITMOS GENÉTICOS
In Brazil, the planning of the energy operation of the National Interconnected Power System is currently done through a chain of mathematical models designed to optimise the planning according to criterion of minimisation of the expected value of the total operation`s cost. However, since the 2001-2002 energy supply crisis, there was an intensification in th
Publicado em: 2008
-
10. Ferramenta para Avaliação da Energia Firme Baseada em Técnica de Pontos Interiores / A tool for Evaluation of Firm Energy Based on Interior Point Technique
The energy sector planning is fundamental to assure the energy supply at the smallest costs and risks and with the smallest socioeconomic and environmental impacts for the society. These factors as well as the aspects complexity involved in the industry operation of the electrical energy production explain the importance of the energy sector planning. Nowada
Publicado em: 2008
-
11. Compósitos cerâmicos porosos de alumina - zircônia para aplicação em sistemas de controle térmico para satélites: obtenção e caracterização / Alumina-zirconia porous ceramic composites for application in satellite thermal control systems: obtaining and characterization
To control the temperature of satellites are used various thermal control heat systems. The Loop Heat pipe (LHP) are being developed at the DEM (Space Mechanic and Control Division) of the INPE (National Institute for Space Research) an apparatus for passive heat control of the satellites components. The main components of the LHP system are: capillary evapo
Publicado em: 2008
-
12. Estudo da influência das variações de temperatura e umidade no comportamento da demanda de energia elétrica e formação do custo marginal de operação no Brasil. / Study of the influence of variations in temperature and humidity in the behaviour of the demand for electricity and formation of the marginal cost of operation in Brazil.
This thesis aims at the elaboration of a study regarding the interference of changes in temperature and relative humidity in the behavior of the demand for electric power and formation of the Marginal Cost of Operation (CMO) in Brazil. From the search for understanding of the steps involved in Operation Planning and Programming of Operation Daily, to meet th
Publicado em: 2008