Dynamic Performance Design and Validation in Large, IBR-Heavy Synthetic Grids

Jongoh Baek () and Adam B. Birchfield
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Jongoh Baek: Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA
Adam B. Birchfield: Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA

Energies, 2025, vol. 18, issue 15, 1-22

Abstract: Cross-validation and open research on future electric grids, particularly in their stability modeling and dynamic performance, can greatly benefit from high-fidelity, publicly available test cases, since access to dynamic response models of actual grid models is often limited due to legitimate security concerns. This paper presents a methodology for designing and validating the dynamic performance of large, IBR-heavy synthetic grids, that is, realistic but fictitious test cases. The methodology offers a comprehensive framework for creating dynamic models for both synchronous generators (SGs) and inverter-based resources (IBRs), focusing on realism, controllability, and flexibility. For realistic dynamic performance, the parameters in each dynamic model are sampled based on statistical data from benchmark actual grids, considering power system dynamics such as frequency and voltage control, as well as oscillation response. The paper introduces system-wide governor design, which improves the controllability of parameters in dynamic models, resulting in a more realistic frequency response. As an example, multiple case studies on a 2000-bus Texas synthetic grid are shown; these represent realistic dynamic performance under different transmission conditions in terms of frequency, voltage control, and oscillation response.

Keywords: synthetic grids; dynamic performance; design and validation; inverter-based resource (IBR); power system stability; public test case (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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