Melhoria das margens de estabilidade de tensão no problema do pre-despacho da operação atraves de corte mínimo de carga

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

The new philosophy of operating electric power systems exploring their maximum power transfer capability has placed the systems close to their stability limits. Therefore, it is important to assess the distance from the equilibrium point to the system voltage stability limit, and how to keep an adequate security margin from this limit. Considering the importance of assuring minimum voltage stability margins during the short-term operation planning, this work proposes a minimum load shedding methodology based on the Expanded Modal Analysis technique as a strategy for assuring this new constraint. Simulation results with test systems show that the proposed methodology can be a powerful tool to assure voltage stability security, reducing the load shedding economical damage.

ASSUNTO(S)

analise modal colapso (eletricidade) sistemas de energia eletrica

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