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Transient Frequency Estimation Methods for the Fast Frequency Response in Converter Control

Pfendler, Anna ; Steppan, Rafael ; Hanson, Jutta (2023)
Transient Frequency Estimation Methods for the Fast Frequency Response in Converter Control.
In: Electronics, 12 (8)
doi: 10.3390/electronics12081862
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

In an interconnected power system, frequency control and stability are of vital importance and indicators of system-wide active power balance. The shutdown of conventional power plants leads to faster frequency changes and a steeper frequency gradient due to reduced system inertia. For this reason, the importance of electrical frequency estimation methods is in- creasing, among others, as an input for the control of converter-based generation plants. The aim of this work is to implement, compare, and analyze the robustness of the Phase-Locked-Loop and Zero-Crossing, Gauss−Newton, and recursive Gauss−Newton methods in time-domain simulations in Matlab/Simulink. The parameters of these methods are tuned for different scenarios in a medium-voltage testbench. The sensitive parameters of the frequency estimation methods show a linear correlation to the magnitude of the active power imbalance so a simple implementation can be de-signed for simulations. With the linearized parameter calculation for the frequency estimation methods, the local frequency as an input for converter control is used for the fast frequency response of a full power converter, which counteracts frequency deviations in the power system. Finally, two different implementations of the fast frequency respons are compared. The Zero-Crossing Method shows the best robustness and the Phase-Locked Loop achieves the absolute best result.

Typ des Eintrags: Artikel
Erschienen: 2023
Autor(en): Pfendler, Anna ; Steppan, Rafael ; Hanson, Jutta
Art des Eintrags: Bibliographie
Titel: Transient Frequency Estimation Methods for the Fast Frequency Response in Converter Control
Sprache: Englisch
Publikationsjahr: 14 April 2023
Verlag: MDPI
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Electronics
Jahrgang/Volume einer Zeitschrift: 12
(Heft-)Nummer: 8
DOI: 10.3390/electronics12081862
URL / URN: https://www.mdpi.com/2079-9292/12/8/1862
Kurzbeschreibung (Abstract):

In an interconnected power system, frequency control and stability are of vital importance and indicators of system-wide active power balance. The shutdown of conventional power plants leads to faster frequency changes and a steeper frequency gradient due to reduced system inertia. For this reason, the importance of electrical frequency estimation methods is in- creasing, among others, as an input for the control of converter-based generation plants. The aim of this work is to implement, compare, and analyze the robustness of the Phase-Locked-Loop and Zero-Crossing, Gauss−Newton, and recursive Gauss−Newton methods in time-domain simulations in Matlab/Simulink. The parameters of these methods are tuned for different scenarios in a medium-voltage testbench. The sensitive parameters of the frequency estimation methods show a linear correlation to the magnitude of the active power imbalance so a simple implementation can be de-signed for simulations. With the linearized parameter calculation for the frequency estimation methods, the local frequency as an input for converter control is used for the fast frequency response of a full power converter, which counteracts frequency deviations in the power system. Finally, two different implementations of the fast frequency respons are compared. The Zero-Crossing Method shows the best robustness and the Phase-Locked Loop achieves the absolute best result.

Zusätzliche Informationen:

This paper is an extended version of our paper published in 57th International Universities Power Engineering Conference (UPEC) 2022, Istanbul, Turkey, 30 August–2 September 2022.

Fachbereich(e)/-gebiet(e): 18 Fachbereich Elektrotechnik und Informationstechnik
18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektrische Energiesysteme > Elektrische Energieversorgung unter Einsatz Erneuerbarer Energien
18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektrische Energiesysteme
Hinterlegungsdatum: 04 Mai 2023 08:38
Letzte Änderung: 31 Jul 2023 08:56
PPN: 510032842
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