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Electrical Engineering and Systems Science > Systems and Control

arXiv:2212.14250 (eess)
[Submitted on 29 Dec 2022 (v1), last revised 21 Feb 2024 (this version, v3)]

Title:Scheduling of Software-Defined Microgrids for Optimal Frequency Regulation

Authors:Zhongda Chu, Guoxuan Cui, Fei Teng
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Abstract:Integrated with a high share of Inverter-Based Resources (IBRs), microgrids face increasing complexity of frequency dynamics, especially after unintentional islanding from the maingrid. These IBRs, on the other hand, provide more control flexibility to shape the frequency dynamics of microgrid and together with advanced communication infrastructure offer new opportunities in the future software-defined microgrids. To enhance the frequency stability of microgrids with high IBR penetration, this paper proposes an optimal scheduling framework for software-defined microgrids to maintain frequency stability by utilizing the non-essential load shedding and dynamical optimization of the virtual inertia and virtual damping from IBRs. Moreover, side effects of these services, namely, the time delay associated with non-essential load shedding and potential IBR control parameter update failure are explicitly modeled to avoid underestimations of frequency deviation and over-optimistic results. The effectiveness and significant economic value of the proposed simultaneous and dynamic virtual inertia and damping provision strategy are demonstrated based on case studies in the modified IEEE 33-bus system.
Subjects: Systems and Control (eess.SY)
Cite as: arXiv:2212.14250 [eess.SY]
  (or arXiv:2212.14250v3 [eess.SY] for this version)
  https://doi.org/10.48550/arXiv.2212.14250

Submission history

From: Zhongda Chu [view email]
[v1] Thu, 29 Dec 2022 10:17:17 UTC (489 KB)
[v2] Mon, 5 Jun 2023 15:49:14 UTC (617 KB)
[v3] Wed, 21 Feb 2024 17:39:40 UTC (2,869 KB)
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