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Converter-connected power plant generic model for frequency stability studies

This paper describes a generic mathematical model of a power plant comprising a synchronous machine driven by a prime mover and connected to the electrical grid through a static converter. We follow a standard approach used to represent other types of converter-connected generators and propose a dedicated turbine and active power control model. This model controls the mechanical speed and the inertial response of the turbine-synchronous machine shaft to enhance the contribution of the power plant to the system frequency control. It is a simplified performance-based model that allows to assess the potential advantages of using such power plant arrangement and benchmark it against other technologies.