Journal article

Characterisation of intra-hourly wind power ramps at the wind farm scale and associated processes

Mathieu Pichault, Claire Vincent, Grant Skidmore, Jason Monty

WIND ENERGY SCIENCE | COPERNICUS GESELLSCHAFT MBH | Published : 2021

Abstract

One of the main factors contributing to wind power forecast inaccuracies is the occurrence of large changes in wind power output over a short amount of time, also called “ramp events”. In this paper, we assess the behaviour and causality of 1183 ramp events at a large wind farm site located in Victoria (southeast Australia). We address the relative importance of primary engineering and meteorological processes inducing ramps through an automatic ramp categorisation scheme. Ramp features such as ramp amplitude, shape, diurnal cycle and seasonality are further discussed, and several case studies are presented. It is shown that ramps at the study site are mostly associated with frontal activity..

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Grants

Awarded by Australian Renewable Energy Agency (ARENA)


Funding Acknowledgements

This research has been supported by the Australian Renewable Energy Agency (ARENA) (grant no. 2018/ARP16).