Planejamento de curto prazo da operação incluindo criterios de estabilidade de tensão

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

This work presents a methodology to incorporate voltage stability criteria on power system short-term operation planning. The method consists of an active/reactive power re-dispatch for normal operation, and also a minimum load shedding strategy in case of critical contingencies, based in the direction provided by the participation factors obtained from the modal analysis. Significant improvement on stability margin was obtained with this new generation schedule. This work also presents studies applying two different optimization techniques maintaining the active power generation fixed: maximization of reactive power reserves and minimization of active power losses. The results show an improvement on the system margin maintaining the optimal economical solution. All nalyses were applied to large-scale power systems and the results confirm the efficiency of the methods to assure the secure operation of the system for different scenarios

ASSUNTO(S)

planejamento sistemas de energia eletrica

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