List of Articles امپدانس مجازی Open Access Article Abstract Page Full-Text 1 - Improving the Transient Stability of Grid Connected Converter During Severe Voltage Drop by Virtual Impedance Omid Abdoli E. Gholipour R. Hooshmand Open Access Article Abstract Page Full-Text 2 - Hierarchical Control for Accurate Power Sharing and Circulation Current Reduction in Resistive AC Microgrids Using Adaptive Virtual Impedance and Distributed Communication Links Masoud Esmaili Mohammad Hejri