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This paper presents an optimal sizing and placement procedure for allocation the capacitors to enhance the operation of distribution systems. The choice of critical nodes that are necessary to install capacitors is dependent on loss sensitivity analysis. The sensitivity factors measure the variation of the system power losses in terms of the level of reactive power at variant nodes. The outcome of...
This paper proposed a procedure to solve the optimal reactive power dispatch (ORPD) problem using ant colony optimization (ACO) algorithm. The objective of the ORPD problem is to minimize the transmission power losses under control and dependent variable constraints. Proposed sensitivity parameters of reactive power at generation and switchable sources are derived based on a modified model of fast...
This paper proposes four performance indices (PIs) for efficient detecting the most weakness load buses which may be subjected to voltage collapse occurrence at different operating conditions. The classification of the suggested ranking PIs are dependent on their severity on the voltage collapse. The suggested PIs are based on physical quantities as equivalent system impedance and the related load...
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