Performance Evaluation of Hybrid AC/DC Microgrids with Integrated Renewable Energy

This study examines the operational efficiency and stability of a hybrid-AC/DC microgrid integrated with renewable energy sources, addressing the need for sustainable power systems. Using the IEEE 14-bus system simulated in MATLAB/Simulink, it assesses microgrid performance under various load conditions, focusing on energy distribution and power quality. The research hypothesizes that advanced energy storage systems within microgrids smooth demand peaks, maintaining voltage stability between 0.9pu and 1pu, and Total Harmonic Distortion (THD) consistently below 5%. Analysis includes active and reactive power distributions, demand profiles, power losses, power factors, voltage levels, and harmonic distortions. Results show the hybrid microgrid maintains operational stability and efficiently manages power, with minor power quality variations during peak demand. Significant power losses were observed in low-voltage bus lines, especially lines 2 and 4, peaking at nearly 1.8kW/phase. This study offers valuable insights for designing efficient power systems, highlighting the importance of hybrid-microgrids in sustainable energy infrastructures.