Observability Restoration
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Análise de observabilidade baseada em variâncias de medidas estimadas = : Observability analysis based estimated measures variances / Observability analysis based estimated measures variances
The purpose of this work is to present a complete methodology for observability analysis of electric power systems. The observability of the network is determined from the trace of the covariance matrix of the measurement estimate, the variance of the estimated power flow allow the identification of observable islands and the restoration of observability is
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/08/2012
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2. Measurements quality and redundancy evaluation for power system state estimation / Avaliação da qualidade e redundância das medidas para estimação de estado em sistemas elétricos de potência
The operating center requires much information in order to control and supervise the power systems. In a secure power systems operation it is important that the state estimation process be reliable. For that purpose, in this work: i) a computer program to evaluate and increment the reliability of power system in terms of redundancy and measurements availabil
Publicado em: 2007
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3. Three-phase generalized state estimation / Estimação de estado generalizada trifasica
Since its introduction in 1969 by Fred C. Schweppe, J. Wildes and D. Rom, the power system state estimation has been widely studied. The state estimation is evolving to a more detailed modeling, which considers state variables not commonly used in bus/branch system modeling. A generalized state estimation model, in which switches and circuit breakers are rep
Publicado em: 2007
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4. Power system state estimation: computer program for analysis and updating of measurement set qualitative characteristics / Estimação de estado em sistemas elétricos de potência: programa para análise e atualização das características qualitativas de conjunto de medidas
To obtain a safe power system (PS) operation, becomes necessary a reliable state estimation (SE), since the real time control actions of a PS are based on the data obtained through the SE process. The first requirement for a successful SE process is the existence of a reliable measurement placement plan, that is, a measurement placement plan that guarantees
Publicado em: 2006