Optimal Allocation of Distributed Generator to Ameliorate the Voltage Stability Employing Circular Optimization Algorithm

This paper proposes a new estimated power collapse index (EPCI) to identify sensitive nodes for optimal placement of DGs. The proposed index is used to rank the buses according to their voltage sensitivity. Circular optimization algorithm is used to perceive optimal size of DG to ameliorate voltage stability and voltage profile of the system and also reduces line congestion. The proposed methodology has been tested on IEEE 30-bus test system to substantiate its applicability. The results are deliberated and key conclusion drawn.