Towards Efficient Aggregation of Storage Flexibilities in Power Grids
arxiv(2024)
摘要
The increasing penetration of volatile renewables combined with increasing
demands poses a challenge to modern power grids. Furthermore, distributed
energy resources and flexible devices (electric vehicles, PV generation, ...)
are becoming more widespread, making their aggregate usage for ancillary
services interesting. However, accurately quantifying the aggregate flexibility
of numerous flexible devices is known to be limited by the curse of
dimensionality, i.e., it does not scale well computationally. This has led to
the development of various approximation algorithms. In this study, we improve
upon our previously proposed vertex-based inner approximation, extending it to
more general storage devices. We demonstrate the efficacy and accuracy of the
proposed method in a case study comparing our approach with an exact
centralized control framework, where the flexibility of numerous electric
vehicles is combined to reduce the peak load in a residential area.
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