Simplification of wind power plant model for easier studying of electrical power grid frequency

What is it about?

The frequency of the power grid is an important parameter for normal operation of the power system. Behaviour of the grid frequency during disturbances is determined by numerous factors such as the types of power plants in the system. Until recently, wind power plants haven't been taken into account when studying power system frequency because their share was insignificant. However, that has changed in the last decade. In order to avoid modelling of a complex power system, low-order system frequency response (SFR) models are used to qualitatively simulate frequency dynamics. In this paper we present an approach to simplify a wind power plant model to be included in SFR models.

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Why is it important?

It facilitates studying power system frequency by decreasing the the number of parameters and complexity of the model.