Grid-forming lambda-omega virtual oscillator control in converter-based power systems

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Inspired by the kinetics of wave phenomena in reaction-diffusion models of biological systems, we propose a novel grid-forming control strategy for control of three-phase DC/AC converters in power systems. The ($\lambda-\omega$) virtual oscillator control or ($\lambda-\omega$) VOC is a natural increment on ideas from virtual oscillator dynamics rotating at a fixed nominal frequency to adaptive, angle-based frequency function. We study a network of identical three-phase DC/AC converters interconnected via $\Pi$ transmission lines. For this, we prove almost global asymptotic stability for a reduced (time-scale separated) version of the model, associated to a well-defined set of controller gains and system parameters. Additionally, we link the ($\lambda-\omega$) VOC to well-studied controllers in the literature, e.g. droop control. Finally, we validate our results on an example three DC/AC converter network.

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Subject classification (UKÄ) – MANDATORY

• Control Engineering
Original language English Proceedings of the European Control Conference, ECC 2021 8 Submitted - 2020 Nov Research Yes European Control Conference 2021 - Rotterdam | De Doelen, Rotterdam | De Doelen, NetherlandsDuration: 2021 Jun 29 → 2021 Jul 2https://ecc21.euca-ecc.org/

Conference

Conference European Control Conference 2021 Netherlands Rotterdam | De Doelen 2021/06/29 → 2021/07/02 https://ecc21.euca-ecc.org/

Related projects

2019/09/012024/08/31

Project: Research