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arXiv · 2104.07330

Frequency stability assessment of modern power systems: models definition and parameters identification

Francesco Conte·Stefano Massucco·Mario Paolone·Giacomo-Piero Schiapparelli·Federico Silvestro·Yihui Zuo
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Abstract

One of the fundamental concerns in the operation of modern power systems is the assessment of their frequency stability in case of inertia-reduction induced by the large share of power electronic interfaced resources. Within this context, the paper proposes a framework that, by making use of linear models of the frequency response of different types of power plants, including also grid--forming and grid-following converters, is capable to infer a numerically tractable dynamical model to be used in frequency stability assessment. Furthermore, the proposed framework makes use of models defined in a way such that their parameters can be inferred from real-time measurements feeding a classical least squares estimator. The paper validates the proposed framework using a full-replica of the dynamical model of the IEEE 39 bus system simulated in a real-time platform.

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Francesco Conte, Stefano Massucco, Mario Paolone, Giacomo-Piero Schiapparelli, Federico Silvestro, Yihui Zuo. 2021-04-15. Frequency stability assessment of modern power systems: models definition and parameters identification. https://doi.org/10.1016/j.segan.2020.100384

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