Observer-based power-synchronization control for grid-forming converters

Tuure Nurminen; Rayane Mourouvin; Marko Hinkkanen; Jarno Kukkola; Mikko Routimo; Antti Vilhunen; Lennart Harnefors

doi:10.1109/PowerTech55446.2023.10202897

Observer-based power-synchronization control for grid-forming converters

Tuure Nurminen, Rayane Mourouvin, Marko Hinkkanen, Jarno Kukkola, Mikko Routimo, Antti Vilhunen, Lennart Harnefors

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

1 Citation (Scopus)

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Abstract

This paper proposes an observer-based power-synchronization control (OPSC) method for grid-forming converters. The method can also be utilized for the starting of synchronous generators. It is analogous to observer-based volts-per-hertz (V/Hz) control of electric machine drives, consisting of state-feedback control and an observer. A linearized model of the closed-loop system is derived, passivity of the mechanical subsystem is studied and tuning recommendations are given. The power tracking performance is assessed and compared to that of reference-feedforward power-synchronization control (RFPSC) with the help of simulations and laboratory experiments using a 12.5-kVA converter. The results show that the proposed control method provides good performance in both weak and strong grids.

Original language	English
Title of host publication	2023 IEEE Belgrade PowerTech
Publisher	IEEE
Pages	1-6
Number of pages	6
ISBN (Print)	978-1-6654-8779-5
DOIs	https://doi.org/10.1109/PowerTech55446.2023.10202897
Publication status	Published - 29 Jun 2023
MoE publication type	A4 Conference publication
Event	IEEE PowerTech - Belgrade , Serbia Duration: 25 Jun 2023 → 29 Jun 2023 Conference number: 15

Conference

Conference	IEEE PowerTech
Country/Territory	Serbia
City	Belgrade
Period	25/06/2023 → 29/06/2023

Keywords

Couplings
Uncertain systems
Analytical models
Electric machines
Observers
Synchronous generators
Closed loop systems

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10.1109/PowerTech55446.2023.10202897

Nurminen-PowerTech-2023Accepted author manuscript, 1.32 MB

Cite this

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title = "Observer-based power-synchronization control for grid-forming converters",

abstract = "This paper proposes an observer-based power-synchronization control (OPSC) method for grid-forming converters. The method can also be utilized for the starting of synchronous generators. It is analogous to observer-based volts-per-hertz (V/Hz) control of electric machine drives, consisting of state-feedback control and an observer. A linearized model of the closed-loop system is derived, passivity of the mechanical subsystem is studied and tuning recommendations are given. The power tracking performance is assessed and compared to that of reference-feedforward power-synchronization control (RFPSC) with the help of simulations and laboratory experiments using a 12.5-kVA converter. The results show that the proposed control method provides good performance in both weak and strong grids.",

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author = "Tuure Nurminen and Rayane Mourouvin and Marko Hinkkanen and Jarno Kukkola and Mikko Routimo and Antti Vilhunen and Lennart Harnefors",

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AU - Nurminen, Tuure

AU - Mourouvin, Rayane

AU - Hinkkanen, Marko

AU - Kukkola, Jarno

AU - Routimo, Mikko

AU - Vilhunen, Antti

AU - Harnefors, Lennart

N1 - Conference code: 15

PY - 2023/6/29

Y1 - 2023/6/29

N2 - This paper proposes an observer-based power-synchronization control (OPSC) method for grid-forming converters. The method can also be utilized for the starting of synchronous generators. It is analogous to observer-based volts-per-hertz (V/Hz) control of electric machine drives, consisting of state-feedback control and an observer. A linearized model of the closed-loop system is derived, passivity of the mechanical subsystem is studied and tuning recommendations are given. The power tracking performance is assessed and compared to that of reference-feedforward power-synchronization control (RFPSC) with the help of simulations and laboratory experiments using a 12.5-kVA converter. The results show that the proposed control method provides good performance in both weak and strong grids.

AB - This paper proposes an observer-based power-synchronization control (OPSC) method for grid-forming converters. The method can also be utilized for the starting of synchronous generators. It is analogous to observer-based volts-per-hertz (V/Hz) control of electric machine drives, consisting of state-feedback control and an observer. A linearized model of the closed-loop system is derived, passivity of the mechanical subsystem is studied and tuning recommendations are given. The power tracking performance is assessed and compared to that of reference-feedforward power-synchronization control (RFPSC) with the help of simulations and laboratory experiments using a 12.5-kVA converter. The results show that the proposed control method provides good performance in both weak and strong grids.

KW - Couplings

KW - Uncertain systems

KW - Analytical models

KW - Electric machines

KW - Observers

KW - Synchronous generators

KW - Closed loop systems

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BT - 2023 IEEE Belgrade PowerTech

PB - IEEE

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Y2 - 25 June 2023 through 29 June 2023

ER -

Observer-based power-synchronization control for grid-forming converters

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