Transmission Network Loading
Mostrando 1-5 de 5 artigos, teses e dissertações.
-
1. AVALIAÇÃO E REFORÇO DAS CONDIÇÕES DE ESTABILIDADE DE TENSÃO EM BARRAS DE TENSÃO CONTROLADA POR GERADORES E COMPENSADORES SÍNCRONOS / VOLTAGE STABILITY ASSESSMENT AND ENHANCEMENT IN VOLTAGE-CONTROLLED BUSES BY SYNCHRONOUS GENERATORS AND COMPENSATORS
After the incidence of some voltage collapses in the energy transmission systems in the world, the voltage security became an issue of great interest in the last years due to the importance of its impact. The phenomenon of voltage stability is due to the excessive active and reactive power flow in the electrical transmission network and has been associated w
Publicado em: 2009
-
2. VOLTAGE STABILITY PROBABILISTIC ASSESSMENT IN COMPOSITE GENERATION AND TRANSMISSION SYSTEMS / ANÁLISE PROBABILÍSTICA DA ESTABILIDADE DE TENSÃO EM SISTEMAS COMPOSTOS DE GERAÇÃO E TRANSMISSÃO
In some countries, the electric power systems are operating near to their limits due to the absence of investments in the transmission network expansion and natural growth of the electricity demand. This operation condition can also occur in electric power systems in which the transmission expansion is carried out in appropriate way. In this case, the excess
Publicado em: 2009
-
3. VOLTAGE CONTROL SENSITIVITY CALCULATION FOR VOLTAGE STABILITY OPERATIONAL REINFORCEMENT / ADEQUAÇÃO DAS AÇÕES DE CONTROLE DE TENSÃO EM SISTEMAS ELÉTRICOS OBJETIVANDO O REFORÇO DAS CONDIÇÕES DE SEGURANÇA DE TENSÃO
The voltage stability problem has been associated with environment questions and lack of financial resources for transmission system expansion. This reality together with the load growth makes the electrical system to be subject of heavy loadings, what can lead to situations of voltage collapse. The development of methods for evaluation of transmission netwo
Publicado em: 2007
-
4. ÍNDICES E MARGENS PARA AVALIAÇÃO DA SEGURANÇA DE TENSÃO / INDEXES AND MARGINS FOR VOLTAGE SECURITY ASSESSMENT
Apresenta-se uma abrangente ferramenta de avaliação das condições de segurança de tensão, composta de índices com significado físico / matemático, propícia para uso na operação em tempo real. A ferramenta identifica se a solução de tensão para uma carga conectada à barra i está na parte superior, na inferior e a distância ao máximo carrega
Publicado em: 2003
-
5. VOLTAGE STABILITY REINFORCEMENT ON ELETRIC POWER SYSTEMS / REFORÇO DAS CONDIÇÕES DE ESTABILIDADE DE TENSÃO NA OPERAÇÃO DO SISTEMA ELÉTRICO
As the electric power transmission networks became more interconnected, the thermal limits of lines and transformers restrict less the power transmission. Similarly, the use of static systems of reactive power compensation increases the power transmission capacity in systems whereas before they were limited by problems of angular stability. Actually, transmi
Publicado em: 2002