Coherency among Power System Devices

Fuente: arXiv
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Autori principali: Ponce, Ignacio, Bernal, Rodrigo, Milano, Federico
Natura: Preprint
Pubblicazione: 2025
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author Ponce, Ignacio
Bernal, Rodrigo
Milano, Federico
author_facet Ponce, Ignacio
Bernal, Rodrigo
Milano, Federico
contents The paper proposes a novel general definition of coherency among power system devices of any type. The proposed approach is thus not limited to synchronous machines. With this aim, the paper shows that coherency can be formally based on the difference in the complex frequency of the current injections of any two devices electrically connected to the same grid. The proposed definition is model-agnostic, making it general and suitable for modern power systems composed of a heterogeneous mix of technologies. The paper also provides a systematic analytical procedure to study the properties that specific device models must satisfy to be coherent. Time-domain simulations are conducted in three case studies whose results illustrate the ability of our definition to evaluate coherency among any type of device.
format Preprint
id arxiv_https___arxiv_org_abs_2511_02486
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Coherency among Power System Devices
Ponce, Ignacio
Bernal, Rodrigo
Milano, Federico
Systems and Control
The paper proposes a novel general definition of coherency among power system devices of any type. The proposed approach is thus not limited to synchronous machines. With this aim, the paper shows that coherency can be formally based on the difference in the complex frequency of the current injections of any two devices electrically connected to the same grid. The proposed definition is model-agnostic, making it general and suitable for modern power systems composed of a heterogeneous mix of technologies. The paper also provides a systematic analytical procedure to study the properties that specific device models must satisfy to be coherent. Time-domain simulations are conducted in three case studies whose results illustrate the ability of our definition to evaluate coherency among any type of device.
title Coherency among Power System Devices
topic Systems and Control
url https://arxiv.org/abs/2511.02486