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Voltage control and reactive power support have been deeply investigated by the technical point of view. System operators and planners have developed complex control schemes, in order to achieve a secure and efficient operation. After the enforcement of market structures, new issues have appeared. Nowadays, the main subjects related with the reactive power management are: maintaining an adequate security...
This paper compares some different formulations of voltage stability indices derived from the Jacobian power flow matrix in presence of the secondary voltage regulation. The work is aimed at individuating an appropriate formulation of the Jacobian power flow matrix in order to calculate the maximum singular value to be used in the objective function of an ORPF (optimal reactive power flow). The different...
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