Analytical Design and Modelling of Power Converters Equipped with Synthetic Inertia Control

This paper deals with a design strategy for the provision of fast-response synthetic inertia services from electronic converters interfaced to the grid by means of a constant power control structure, like the one traditionally adopted for renewables generators. The novelty introduced lies in the inclusion of the external grid characteristics in the definition of the current-controlled inertia loop; this analytical approach allows to predict the properties of the power network and converter dynamics during inertia provision.