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Conditions for Regional Frequency Stability in Power System Scheduling -- Part I: Theory - MaRDI portal

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Conditions for Regional Frequency Stability in Power System Scheduling -- Part I: Theory

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Publication:6350016

arXiv2009.13163MaRDI QIDQ6350016

Author name not available (Why is that?)

Publication date: 28 September 2020

Abstract: This paper considers the phenomenon of distinct regional frequencies recently observed in some power systems. First, a reduced-order mathematical model describing this behaviour is developed. Then, techniques to solve the model are discussed, demonstrating that the post-fault frequency evolution in any given region is equal to the frequency evolution of the Centre Of Inertia plus certain inter-area oscillations. This finding leads to the deduction of conditions for guaranteeing frequency stability in all regions of a power system, a deduction performed using a mixed analytical-numerical approach that combines mathematical analysis with regression methods on simulation samples. The proposed stability conditions are linear inequalities that can be implemented in any optimisation routine allowing the co-optimisation of all existing ancillary services for frequency support: inertia, multi-speed frequency response, load damping and an optimised largest power infeed. This is the first reported mathematical framework with explicit conditions to maintain frequency stability in a power system exhibiting inter-area oscillations in frequency.




Has companion code repository: https://github.com/badber/TwoRegion_Frequency








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