Computationally Efficient Analytical Models of Frequency and Voltage in Low-Inertia Systems

Fuente: arXiv
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Auteurs principaux: Trujillo, Marena, Sajadi, Amir, Shaw, Jonathan, Hodge, Bri-Mathias
Format: Preprint
Publié: 2025
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author Trujillo, Marena
Sajadi, Amir
Shaw, Jonathan
Hodge, Bri-Mathias
author_facet Trujillo, Marena
Sajadi, Amir
Shaw, Jonathan
Hodge, Bri-Mathias
contents In this paper, low-order models of the frequency and voltage response of mixed-generation, low-inertia systems are presented. These models are unique in their ability to efficiently and accurately model frequency and voltage dynamics without increasing the computational burden as the share of inverters is increased in a system. The models are validated against industry-grade electromagnetic transient simulation, compared to which the proposed models are several orders of magnitude faster. The accuracy and efficiency of the low-inertia frequency and voltage models makes them well suited for a variety of planning and operational studies, especially for multi-scenario and probabilistic studies, as well as for screening studies to establish impact zones based on the dynamic interactions between inverters and synchronous generators.
format Preprint
id arxiv_https___arxiv_org_abs_2506_06620
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Computationally Efficient Analytical Models of Frequency and Voltage in Low-Inertia Systems
Trujillo, Marena
Sajadi, Amir
Shaw, Jonathan
Hodge, Bri-Mathias
Systems and Control
In this paper, low-order models of the frequency and voltage response of mixed-generation, low-inertia systems are presented. These models are unique in their ability to efficiently and accurately model frequency and voltage dynamics without increasing the computational burden as the share of inverters is increased in a system. The models are validated against industry-grade electromagnetic transient simulation, compared to which the proposed models are several orders of magnitude faster. The accuracy and efficiency of the low-inertia frequency and voltage models makes them well suited for a variety of planning and operational studies, especially for multi-scenario and probabilistic studies, as well as for screening studies to establish impact zones based on the dynamic interactions between inverters and synchronous generators.
title Computationally Efficient Analytical Models of Frequency and Voltage in Low-Inertia Systems
topic Systems and Control
url https://arxiv.org/abs/2506.06620