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Abstract(s)
Com o aumento cada vez maior da dependência da sociedade moderna em relação à eletricidade e o consequente aumento do consumo, é necessário utilizar equipamentos domésticos e industriais mais eficientes para lidar com as necessidades energéticas em crescimento constante. Isso, por sua vez, requer a construção de redes de distribuição eficientes para levar a eletricidade aos centros consumidores. Diante desse desafio os engenheiros especializados em Sistemas de Energia Elétrica constantemente se deparam com a questão de como manter altos padrões de qualidade de serviço, ao mesmo tempo que otimizam o número de equipamentos utilizados na rede, a fim de minimizar os investimentos necessários. A dissertação tem como objetivo realizar uma análise à possibilidade do aumento de temperatura máxima de funcionamento das linhas aéreas como solução alternativa para as crescentes necessidades elétricas. Com o intuito de verificar a eficácia desta possibilidade, foram realizados quatro projetos. Dois foram realizados utilizando o condutor ALACO160, um condutor tipicamente utilizado na saída de subestações de alta tensão/média tensão. Os restantes projetos foram realizados utilizando o condutor ALACO90, que é normalmente utilizado em interligações de linhas de média tensão. Após a elaboração dos projetos correspondentes, realizou-se uma análise SWOT em três casos de estudo. Esses casos de estudo apresentaram problemas, para os quais foram propostas duas soluções. Uma das soluções baseou-se no aumento de temperatura como uma abordagem para responder às necessidades previamente mencionadas. Os casos de estudo foram criados e analisados para avaliar a viabilidade de utilizar o aumento de temperatura nos condutores como uma solução aplicável. Por fim, após a realização da análise SWOT, foram tiradas as conclusões relativas em qual pode ser justificado o aumento de temperatura das linhas como uma solução indicada para resolver o problema das cargas crescentes no sistema elétrico. Essas conclusões foram baseadas nos aspetos técnicos e na viabilidade económica, fornecendo recomendações sobre a solução mais eficiente e eficaz para enfrentar esse desafio.
With modern society's increasing dependence on electricity and the consequent rise in consumption, it is necessary to use more efficient domestic and industrial equipment to cope with the ever-growing energy needs. Consequently, the construction of efficient distribution networks becomes vital in order to effectively deliver electricity to the consuming centers. Faced with this challenge, engineers specialised in Electrical Power Systems are constantly faced with the question of how to maintain high standards of service quality while optimising the number of equipment used in the network in order to minimise the necessary investments. This dissertation aims to analyse the possibility of increasing the maximum operating temperature for overhead lines as an alternative solution to the growing electricity needs. In order to verify the efficency of this theory, five projects were carried out. Two projects were carried out using the conductor ALACO160, a conductor typically used at the output of high voltage/medium voltage substations. The remaining projects were carried out using the conductor ALACO90, which is typically used in medium voltage line interconnections. After the elaboration of the corresponding projects, a SWOT analysis was carried out on three case studies. These case studies presented problems, for which two solutions were proposed. One of the solutions was based on temperature increase as an approach to respond to the previously mentioned needs. The case studies were created and analysed to assess the feasibility of using temperature rise in conductors as an applicable solution. Finally, after carrying out the SWOT analysis, conclusions were drawn on which can be the increase in the temperature of the lines, can be justified, as an indicated solution to solve the problem of increasing electrical loads. These conclusions were based on technical aspects and economic viability, providing recommendations on the most efficient and effective solution to address this challenge.
With modern society's increasing dependence on electricity and the consequent rise in consumption, it is necessary to use more efficient domestic and industrial equipment to cope with the ever-growing energy needs. Consequently, the construction of efficient distribution networks becomes vital in order to effectively deliver electricity to the consuming centers. Faced with this challenge, engineers specialised in Electrical Power Systems are constantly faced with the question of how to maintain high standards of service quality while optimising the number of equipment used in the network in order to minimise the necessary investments. This dissertation aims to analyse the possibility of increasing the maximum operating temperature for overhead lines as an alternative solution to the growing electricity needs. In order to verify the efficency of this theory, five projects were carried out. Two projects were carried out using the conductor ALACO160, a conductor typically used at the output of high voltage/medium voltage substations. The remaining projects were carried out using the conductor ALACO90, which is typically used in medium voltage line interconnections. After the elaboration of the corresponding projects, a SWOT analysis was carried out on three case studies. These case studies presented problems, for which two solutions were proposed. One of the solutions was based on temperature increase as an approach to respond to the previously mentioned needs. The case studies were created and analysed to assess the feasibility of using temperature rise in conductors as an applicable solution. Finally, after carrying out the SWOT analysis, conclusions were drawn on which can be the increase in the temperature of the lines, can be justified, as an indicated solution to solve the problem of increasing electrical loads. These conclusions were based on technical aspects and economic viability, providing recommendations on the most efficient and effective solution to address this challenge.
Description
Keywords
Condutores Considerações Técnicas Energia Elétrica Esforços Mecânicos Impacto Económico, Impacto Técnico-Elétrico Projetos de Linhas Aéreas