Electric Energy Transmission
Mostrando 1-12 de 53 artigos, teses e dissertações.
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1. Analysis of solar photovoltaic energy potential in Brazilian hydroelectric reservoirs through floating panels
Abstract Sustainability, a concept used to exploit natural resources without harming future generations, is being applied to power generation. In Brazil, the main source of electric energy comes from hydroelectric plants, due to abundant water resources. However, the implementation of these plants causes irreversible impacts on the environment and society.
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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2. DISCOVERING AND LABELLING OF TEMPORAL GRANULARITY PATTERNS IN ELECTRIC POWER DEMAND WITH A BRAZILIAN CASE STUDY
ABSTRACT Clustering is commonly used to group data in order to represent the behaviour of a system as accurately as possible by obtaining patterns and profiles. In this paper, clustering is applied with partitioning-clustering techniques, specifically, Partitioning around Medoids (PAM) to analyse load curves from a city of South-eastern Brazil in São Paulo
Pesqui. Oper.. Publicado em: 2016-12
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3. DEVELOPMENT OF INSULATING MAGNETIC OIL FOR TRANSFORMERS
The Centrais Elétricas do Norte do Brasil AS – Eletronorte, as well as other companies in the world energy sector, have problems of loss of the performance by excessive heat and even accidents with their transformers. The maintenance and accidents impact of energy supply, generating profit and more expensive insurance premiums. The transformers are essent
Publicado em: 20/07/2014
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4. Estudo do aspecto locacional da alocação de custos da transmissão = : Study of the locational aspect in the transmission cost allocation problem / Study of the locational aspect in the transmission cost allocation problem
Esta dissertação de mestrado apresenta quatro metodologias de alocação de custos da transmissão: Pro rata (PR), Divisão Proporcional (PS), Zbus-médio (Zbus_AVG) e Nodal. Enquanto a primeira desconsidera o aspecto locacional e aloca os custos baseado apenas na quantidade de potência produzida pelos geradores e consumida pelas cargas, as últimas três
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/07/2012
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5. Aplicação de redes inteligentes nas instalações elétricas residenciais / Application of smart grid in residential electrical installations.
Electricity as an energy resource acquired vital importance in modern society because it allows relatively easily meet the demand for their services. Thus the demand for electricity increases with the evolution of populations who benefit from. The electrical system that produces this input is limited in its ability to available resources for generation, tran
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/04/2012
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6. Identificação de bactérias isoladas de elementos metálicos de torres de transmissão de energia elétrica e avaliação de resistência à metais pesados. / Identification of bacteria isolated from metallic elements of electric energy transmission towers and evaluation of heavy metal resistance.
A corrosão metálica é um problema que afeta a economia mundial, sendo responsável pelo aumento dos custos de geração, transmissão e distribuição de energia elétrica e pode ser influenciada por atividades microbianas, podendo levar a aceleração ou inibição do processo. O presente trabalho teve por objetivo isolar e identificar as bactérias asso
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/07/2011
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7. Algoritmo para frenagem regenerativa de uma máquina síncrona de imã permanente / Algorithm for regenerative braking of a permanent magnet synchronous machine
Environmental protection and optimal energy resources are great activity research areas. As a result of these researches, electric vehicles (EVs) and hybrid (HEV) developments have been accelerated. They have challenging problems such as low autonomy, power conversion, vehicle control, energy management and distribution within it, as well as the esthetic and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/08/2010
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8. Dielectric properties of microwave absorbing sheets produced with silicone and polyaniline
The aim of this study was to produce sheets of microwave absorbing materials using conductive polyaniline dispersed in a silicone rubber matrix and to characterize the electromagnetic properties (absorption, transmission and reflection of electromagnetic energy; and electric permittivity and magnetic permeability) of these sheets in the X-band (8 - 12 GHz).
Materials Research. Publicado em: 2010-06
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9. Regulation model of electric sector in Brazil and its juridic repercussion on concession agreement of electric energy transmission. / Modelo regulatório do setor elétrico no Brasil e sua repercussão jurídica nos contratos de concessão de transmissão de energia elétrica.
No presente trabalho se analisa a atividade de transmissão de energia elétrica em sua perspectiva econômica e jurídica, no contexto do modelo regulatório do setor de energia elétrica no Brasil, caracterizado atualmente pela sua desverticalização. A abordagem pretendida parte da configuração dos princípios que orientam a regulação do setor elétr
Publicado em: 2010
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10. Localização de faltas em linhas de transmissão de múltiplos terminais a partir de registros oscilográficos sincronizados via transformada wavelet
The electric energy is essential to the development of modern society and its increasing demand in recent years, effect from population and economic growth, becomes the companies more interested in the quality and continuity of supply, factors regulated by ANEEL (Agência Nacional de Energia Elétrica). These factors must be attended when a permanent fault o
Publicado em: 2010
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11. MODELOS DE CARGAS BASEADOS EM MEDIÇÕES PARA SIMULAÇÕES DINÂMICAS EM SISTEMAS ELÉTRICOS DE POTÊNCIA / MEASUREMENT-BASED LOAD MODELING FOR DYNAMIC SIMULATIONS ON ELECTRIC POWER SYSTEMS
This work describes a measurement-based load modeling methodology, using voltage and current data registered during power system disturbances. These load models are used on computational simulations for predicting power system stability after disturbances of system operational points. Practical results are presented of the proposed methodology, defining load
Publicado em: 2010
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12. Metodologia para conversão de veículos equipados com motores a combustão interna para tração elétrica: aplicação de motor síncrono de ímã permanente com fluxo magnético radial a um furgão, Brasil. 2009. / Methodology to convert internal combustion engines vehicles to operate with electrical power: a radial magnets permanent flux magnet synchronous motor is custom-made to a Van, Brazil. 2009
Climate changes, atmospherics characteristics and environmental pollution have turned the final use of energy an issue of special interest to be addressed by studies all over the world. The mix of energy, characterized by the Brazilian energy sources, makes it possible to consider the development and better understanding of this technology in order to reduce
Publicado em: 2009