Optimal Allocation of Renewable Energy Resources to Improve Voltage Profile and Minimize Power Losses on the Most Critical Buses Prone to Voltage Instability

The increased penetration of Renewable Energy Resources (RES),like solar and wind energy, into the grid, has addressed climate change challenges but also contributed to power system instability.This study proposes a methodology for the optimal allocation of solar and wind energy on the IEEE-33 bus radial distribution network to enhance the voltage profile and reduce active power losses.The methodology identifies the three most critical buses susceptible to voltage instability using the Fast Voltage Stability Index (FVSI) method.Various types and sizes of RES are allocated to these buses to evaluate their impact on voltage profile improvement and power loss reduction.Simulations are conducted using MATPOWER in MATLAB software.Results show that voltage profile enhancement and power loss reduction depend on the type, size, and location of RES, demonstrating the methodology's effectiveness compared to related studies.