Small-Signal Stability Impacts of Load and Network Dynamics on Grid-Forming Inverters

Fuente: arXiv
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Auteurs principaux: Henriquez-Auba, Rodrigo, Lara, Jose Daniel, Callaway, Duncan S.
Format: Preprint
Publié: 2022
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author Henriquez-Auba, Rodrigo
Lara, Jose Daniel
Callaway, Duncan S.
author_facet Henriquez-Auba, Rodrigo
Lara, Jose Daniel
Callaway, Duncan S.
contents This paper presents several stability analyses for grid-forming inverters and synchronous generators considering the dynamics of transmission lines and different load models. Load models are usually of secondary importance compared to generation source models, but as the results show, they play a crucial role in stability studies with the introduction of inverter-based resources. Given inverter control time scales, the implications of considering or neglecting electromagnetic transients of the network are very relevant in the stability assessments. In this paper, we perform eigenvalue analyses for inverter-based resources and synchronous machines connected to a load and explore the effects of multiples models under different network representations. We explore maximum loadability of inverter-based resources and synchronous machines, while analyzing the effects of load and network dynamic models on small-signal stability. The results show that the network representation plays a fundamental role in the stability of the system of different load models. The resulting stability regions are significantly different depending on the source and load model considered.
format Preprint
id arxiv_https___arxiv_org_abs_2212_08147
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Small-Signal Stability Impacts of Load and Network Dynamics on Grid-Forming Inverters
Henriquez-Auba, Rodrigo
Lara, Jose Daniel
Callaway, Duncan S.
Systems and Control
This paper presents several stability analyses for grid-forming inverters and synchronous generators considering the dynamics of transmission lines and different load models. Load models are usually of secondary importance compared to generation source models, but as the results show, they play a crucial role in stability studies with the introduction of inverter-based resources. Given inverter control time scales, the implications of considering or neglecting electromagnetic transients of the network are very relevant in the stability assessments. In this paper, we perform eigenvalue analyses for inverter-based resources and synchronous machines connected to a load and explore the effects of multiples models under different network representations. We explore maximum loadability of inverter-based resources and synchronous machines, while analyzing the effects of load and network dynamic models on small-signal stability. The results show that the network representation plays a fundamental role in the stability of the system of different load models. The resulting stability regions are significantly different depending on the source and load model considered.
title Small-Signal Stability Impacts of Load and Network Dynamics on Grid-Forming Inverters
topic Systems and Control
url https://arxiv.org/abs/2212.08147