Optimal Planning for Deployment of DG and RPC Considering Techno-Economic Aspects with Different Scenarios

The growing demand for electrical energy has made Distributed Energy Resources (DER), including wind and solar photovoltaics, increasingly prominent in distribution networks. Placement of these distributed resources across the distribution network changes the line flows and modifies network performance parameters like network losses and voltage profile predominantly. Distributed Generators and Reactive Power Compensator deployment at load buses inject a partial reactive and active demand, making the distribution system bidirectional and modified line flows need more detailed analysis to improve network performance parameters. The locations and size of these distributed resources have a strong influence on network losses and power quality. The optimal placement problem of DG and RPC simultaneously has been addressed for the IEEE-33 bus network. Minimization type multi-criteria function incorporates four criteria, i.e., loss minimization, investment cost minimization, voltage stability and improvement in network bus voltage. The proposed strategy has been tested for three different scenarios where DGs have been modelled for the PQ bus and PV bus along with RPC. The proposed MOF has been minimized by the GA metaheuristic algorithm to serve all objectives having a conflict of interest. The proposed strategy helps distribution planners maximize the benefits of these distributed resources, considering future load growth.