Passivity and Decentralized Stability Conditions for Grid-Forming Converters

Fuente: arXiv
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Autori principali: He, Xiuqiang, Dörfler, Florian
Natura: Preprint
Pubblicazione: 2023
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author He, Xiuqiang
Dörfler, Florian
author_facet He, Xiuqiang
Dörfler, Florian
contents We prove that the popular grid-forming control, i.e., dispatchable virtual oscillator control (dVOC), also termed complex droop control, exhibits output-feedback passivity in its large-signal model, featuring an explicit and physically meaningful passivity index. Using this passivity property, we derive decentralized stability conditions for the transient stability of dVOC in multi-converter grid-connected systems, beyond prior small-signal stability results. The decentralized conditions are of practical significance, particularly for ensuring the transient stability of renewable power plants under grid disturbances.
format Preprint
id arxiv_https___arxiv_org_abs_2310_09935
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Passivity and Decentralized Stability Conditions for Grid-Forming Converters
He, Xiuqiang
Dörfler, Florian
Systems and Control
We prove that the popular grid-forming control, i.e., dispatchable virtual oscillator control (dVOC), also termed complex droop control, exhibits output-feedback passivity in its large-signal model, featuring an explicit and physically meaningful passivity index. Using this passivity property, we derive decentralized stability conditions for the transient stability of dVOC in multi-converter grid-connected systems, beyond prior small-signal stability results. The decentralized conditions are of practical significance, particularly for ensuring the transient stability of renewable power plants under grid disturbances.
title Passivity and Decentralized Stability Conditions for Grid-Forming Converters
topic Systems and Control
url https://arxiv.org/abs/2310.09935