Pfendler, Anna ; Coumont, Martin Albrecht ; Hanson, Jutta (2022)
Impact of the PLL Time Constant in Converter Control on the Dynamic Frequency Support.
57th International Universities Power Engineering Conference. Istanbul, Turkey (30.08.2022-02.09.2022)
doi: 10.1109/UPEC55022.2022.9917944
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
The use of a phase-locked loop in grid-forming converter control is controversially discussed, as it implies a time delay to the converter’s response to grid disturbances. In literature, slowing down the PLL dynamics to create a retarded measured voltage and current phasor is discussed to virtually resemble synchronous generators’ inherent inertia. In this case study, the influence of the PLL time constant is investigated in a simple medium-voltage testbench with the standard cascaded control and the direct voltage control concept. The frequency, active power, direct and quadrature current of the converter-based generator are evaluated for different PLL time constants following an active power mismatch. The results show that slowing down the PLL has a small impact on the current and power infeed of both control concepts. However, results of the standard cascaded and the direct voltage control are similar and a general advantage of the slower PLL cannot be concluded in this case study.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Pfendler, Anna ; Coumont, Martin Albrecht ; Hanson, Jutta |
| Art des Eintrags: | Bibliographie |
| Titel: | Impact of the PLL Time Constant in Converter Control on the Dynamic Frequency Support |
| Sprache: | Englisch |
| Publikationsjahr: | 18 Oktober 2022 |
| Verlag: | IEEE |
| Buchtitel: | 2022 57th International Universities Power Engineering Conference (UPEC) |
| Veranstaltungstitel: | 57th International Universities Power Engineering Conference |
| Veranstaltungsort: | Istanbul, Turkey |
| Veranstaltungsdatum: | 30.08.2022-02.09.2022 |
| DOI: | 10.1109/UPEC55022.2022.9917944 |
| URL / URN: | https://ieeexplore.ieee.org/document/9917944 |
| Kurzbeschreibung (Abstract): | The use of a phase-locked loop in grid-forming converter control is controversially discussed, as it implies a time delay to the converter’s response to grid disturbances. In literature, slowing down the PLL dynamics to create a retarded measured voltage and current phasor is discussed to virtually resemble synchronous generators’ inherent inertia. In this case study, the influence of the PLL time constant is investigated in a simple medium-voltage testbench with the standard cascaded control and the direct voltage control concept. The frequency, active power, direct and quadrature current of the converter-based generator are evaluated for different PLL time constants following an active power mismatch. The results show that slowing down the PLL has a small impact on the current and power infeed of both control concepts. However, results of the standard cascaded and the direct voltage control are similar and a general advantage of the slower PLL cannot be concluded in this case study. |
| 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: | 01 Nov 2022 09:09 |
| Letzte Änderung: | 01 Nov 2022 09:13 |
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