PSO VARIANTS BASED OPTIMAL POWERFLOW FOR MULTIPLE OBJECTIVE MINIMIZATION

Optimal power flow is an optimizing tool for power system operation analysis, scheduling and energy management. Use of the optimal power flow is becoming more important because of its capabilities to deal with various situations. The main purpose of an optimal power flow (OPF) programming is to determine the optimal operating state of a power system by optimizing a particular objective while meeting the constraints of economics and security. In this paper PSO variants method such as constriction factor approach PSO, adaptive PSO, and evolutionary PSO have been developed and presented. These PSO variants are combined with NR, Newton, and IPM to form hybrid method for the solution of OPF/volt-var optimization with different objective functions such as fuel cost minimization, voltage profile improvement, voltage stability enhancement, and real power loss minimization. These methods have been applied on IEEE-30 bus system and results have been obtained.