Electrical Distribution Reliability
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Integration of Renewable Energy Sources to Operate in Microgrids in Rural Zones in Brazil
Abstract In a world where technology is even more essential, quality and reliability of electrical system are fundamental. In Brazil, country where most of the energy is produced thought power plants, the existing distribution network is overwhelmed and the needs for the consolidation of distributed generation is growing. Wind and Solar power generation fro
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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2. Distributed generators performance during short-circuits considering fault ride-through requirements / Desempenho de geradores distribuídos durante curtos-circuitos considerando requisitos de suportabilidade a afundamentos de tensão = : Distributed generators performance during short-circuits considering fault ride-through requirements
The increase of distributed generation penetration in distribution systems not only helps to diversify the electrical matrix but also brings both technical and economic benefits. Yet, it also raises worries related to energy supply reliability. For wind power plants into the medium and high voltage networks there are the grid codes for "Fault Ride-Through" w
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2012
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3. Monitoramento de temperatura do motor de aerogeradores de pequeno porte utilizando Power Line Communication -PLC
The control system and supervision have been revealed very important in product systems. To guarantee the function with quality, industrial process requires a permanent control being necessary keeping stable some variables. One important factor to point using remote monitoring is the possibility to centralize the control of one process in distinct place, man
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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4. Estudo do aumento do desempenho de um sistema de tomografia de impedância elétrica através do método de otimização topológica. / Increasing electrial impedance tomography system performance through the topology optimization method.
Electrical Impedance Tomography images the interior of a body based on electrical quantities measured on the surface of it. Mathematically, the technique finds the electric admittivity distribution in a given body model which reproduces the boundary measurements of electric currents and potentials on electrodes attached to that body. Therefore, the admittivi
Publicado em: 2010
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5. ASPECTOS TÉCNICOS E OPERACIONAIS DO USO DE MICROTURBINAS CONECTADAS AOS SISTMAS ELÉTRICOS PARA GERAÇÃO DISTRIBUÍDA DE ENERGIA / TECHNICAL AND OPERATIONAL ASPECTS OF THE USE OF MICROTURBINES CONNECT TO THE ELECTRICAL SYSTEM FOR DISTRIBUTED ENERGY GENERATION
The considerable increase in energy demand has increased the interest in reducing costs, improving reliability, quality and stability of power generation systems. The connection of distributed generation (DG) can be used as a strategic element to improve the voltage levels in power system. Microturbines (MT) have certain advantages over other models of GD, s
Publicado em: 2010
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6. ELECTRIC DISTRIBUTION POWER SYSTEMS RELIABILITY OPTIMIZATION: An Approach Considering the Selection and Allocation of Protection and Switching Devices / OTIMIZAÇÃO DA CONFIABILIDADE DE SISTEMAS DE DISTRIBUIÇÃO DE ENERGIA ELÉTRICA: Uma Abordagem Considerando a Seleção e Alocação de Dispositivos de Proteção e Manobras
One of the main goals of the electric utilities is to provide energy to its customers in a reliable and low cost way. Traditionally, the electricity sector regulatory commissions impose continuity targets, which must be carried out, to avoid great penalties. For many years, the electric utilities have adopted the practice of allowing the increment of tempora
Publicado em: 2009
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7. Analise dos sistemas de proteção e controle de instalações industriais com geradores sincronos durante operação ilhada / Protection and control systems analysis of industrial plants with synchronous generators during islanded operation
Modern industrial systems are very sophisticated installations with a high number of automatic processes and capability of isolated (islanded) operation after contingences by using onsite generators composed mainly by synchronous machines and steam turbines. Such installations, in the presence of generators, are generically called autoproducers. Since many o
Publicado em: 2009
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8. Risco e confiabilidade sobre estruturas combinatÃrias : uma modelagem para redes elÃtricas
Reability of an component is the probability that it perform its functions under specific conditions. Unlike the concept of reliability is the concept of risk, which is defined as the probability of failure versus the cost associating with such failure. Mathematical models are often used in engineering projects and the analysis of reliability, robustness and
Publicado em: 2008
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9. Modelo de monitoramento e avaliação da confiabilidade e disponibilidade de sistemas de distribuição de energia elétrica com base nas condições de uso de transformadores. / A monitoring and evaluation model of the reliability and availability of electric power distribution systems based on transformers usage conditions.
This work presents and proposes a model to supervise and evaluate an electrical energy distribution system by applying the usage conditions based maintenance technique on the power and distribution transformers. Monitoring the distribution system transformers with the usage conditions technique allows the system administrator to perform a preventive maintena
Publicado em: 2006
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10. Análise de confiabilidade e melhoria da taxa de falhas para cubículos classe 15 kV / Reliability Analisys and failure rates decrease for 15kV switchgears.
Este trabalho apresenta as principais causas de desligamento de cubículos classe 15kV, restringindo-se aos cubículos conhecidos como cabines primárias, que fazem a interface entre a rede das concessionárias de energia e os consumidores primários. Conhecidas as razões pelas quais as cabines desligam, verificou-se quais são as taxas de falha presumidas
Publicado em: 2006
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11. Estudo de potência reativa, tensão, contingência e perdas em empresas de energia elétrica localizadas na Grande São Paulo
In the middle of the 20 20th th century the Brazilian electrical energy sector experienced a rapid growth, since that occasion the problem of voltage control in the transmission and distribution systems grabbed the attention of energy authorities, electrical sector offices and high voltage consumers. With the limitation of reactive power in transmission line
Publicado em: 2005
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12. ALGORITHM DEVELOPMENT FOR THE RELIABILITY OPTIMIZATION ON DISTRIBUTION NETWORKS / DESENVOLVIMENTO DE ALGORITMOS PARA OTIMIZAÇÃO DA CONFIABILIDADE DE REDES DE DISTRIBUIÇÃO
New regulations of the electricity sector have requested greater efficiency from the power utilities in the performance of their distribution systems, requiring more rigorous quality and continuity energy levels. This work has the purpose of stating the best way to model the integer indicators of reliability for electric systems, financial resources and mate
Publicado em: 2004