A Multi-Objective PQI-Based Adaptive Virtual Impedance Strategy for Harmonic and Voltage Unbalance Mitigation in Renewable-Rich Hybrid Microgrids
The increasing penetration of converter-interfaced renewable energy sources poses significant challenges to power quality in modern microgrids, especially under nonlinear and unbalanced load conditions. Conventional virtual-impedance strategies can improve converter-grid interaction; however, the use of fixed parameter...