Shipboard Microgrid System Modeling with Multiple VSG Controllers for Frequency Control

This section presents a model of a shipboard microgrid system operating under an open network, incorporating multiple load working units, such as large-scale variable frequency air conditioners, and multiple VSG controllers. To prevent oscillations and instability that may arise in the shipboard microgrid, multiple time delays are proactively introduced. A frequency control strategy utilizing multiple VSGs to coordinate the shipboard microgrid and load units, such as aggregate variable frequency air conditioners, is proposed.