Stability Analysis of a Multi-machine Power System Connected with a DC Microgrid Consisting of Renewable Energy Systems, Energy Storage Systems, and Electric Vehicle Loads

In response to the booming development of the electric vehicle (EV) industry, many researchers have dedicated their efforts to this field in recent years. However, most of the literature primarily focuses on the study of converter topologies, with only a few addressing the system-level perspective. This paper proposes a DC microgrid (MG) that integrates renewable energy systems (RESs), EV charging stations, and a supercapacitor (SC)-based energy storage system (ESS) to connect to the simplified Taiwan Power System through a DC/AC inverter. Both steady-state and dynamic simulations are conducted to analyze the small-signal stability of the studied configuration.