Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | 2022 IEEE PES 14th Asia-Pacific Power and Energy Engineering Conference, APPEEC 2022 |
| Herausgeber (Verlag) | IEEE Computer Society |
| ISBN (elektronisch) | 9781665467384 |
| ISBN (Print) | 978-1-6654-6739-1 |
| Publikationsstatus | Veröffentlicht - 2022 |
| Veranstaltung | 14th IEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2022 - Melbourne, Australien Dauer: 20 Nov. 2022 → 23 Nov. 2022 |
Publikationsreihe
| Name | Asia-Pacific Power and Energy Engineering Conference, APPEEC |
|---|---|
| Band | 2022-November |
| ISSN (Print) | 2157-4839 |
| ISSN (elektronisch) | 2157-4847 |
Abstract
Control algorithms for grid-forming inverters play a significant role in both microgrids and grid stability. A common control approach for grid-forming inverters is the droop control, which imitates the droop characteristic of traditional generators. While the steady-state performance of this control is satisfactory, the initial start and synchronization process is challenging. The main issue is that droop-controlled inverters behave like voltage sources, meaning that connecting an inverter to a pre-existing PCC voltage requires perfect synchronization of the voltages. Improper synchronization might lead to overcurrents and consequently to the destruction of the inverter. Synchronization algorithms for grid-forming inverters already exist, but do not usually cover the influence of the inner voltage control loop. Moreover, many of these techniques require a switch between the inverter and the point of common coupling, and also an additional voltage measurement on the grid side of the switch. This paper proposes a start and synchronization process that only requires the inverter measurements and needs no additional voltage measurement on the grid side. Furthermore, the algorithm takes into account the power-related control and the inner voltage control loop, and so achieves minimal transients when starting the droop-controlled operation.
ASJC Scopus Sachgebiete
- Energie (insg.)
- Energieanlagenbau und Kraftwerkstechnik
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2022 IEEE PES 14th Asia-Pacific Power and Energy Engineering Conference, APPEEC 2022. IEEE Computer Society, 2022. (Asia-Pacific Power and Energy Engineering Conference, APPEEC; Band 2022-November).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Initial Start and Synchronization Algorithm for Droop-Controlled Inverters with Consideration of the Inner Voltage Control Loop
AU - Stallmann, Frederik
AU - Liebchen, Georg
AU - Mertens, Axel
N1 - Funding Information: This paper is funded by the German Federal Ministry of Economic Affairs and Climate Action (BMWK) pursuant to a decision of the German Parliament in the project STIM (Smart Transformers as Power Supply for the Future Mechanical Engineering Industry). Funding number: 03EN2010E.
PY - 2022
Y1 - 2022
N2 - Control algorithms for grid-forming inverters play a significant role in both microgrids and grid stability. A common control approach for grid-forming inverters is the droop control, which imitates the droop characteristic of traditional generators. While the steady-state performance of this control is satisfactory, the initial start and synchronization process is challenging. The main issue is that droop-controlled inverters behave like voltage sources, meaning that connecting an inverter to a pre-existing PCC voltage requires perfect synchronization of the voltages. Improper synchronization might lead to overcurrents and consequently to the destruction of the inverter. Synchronization algorithms for grid-forming inverters already exist, but do not usually cover the influence of the inner voltage control loop. Moreover, many of these techniques require a switch between the inverter and the point of common coupling, and also an additional voltage measurement on the grid side of the switch. This paper proposes a start and synchronization process that only requires the inverter measurements and needs no additional voltage measurement on the grid side. Furthermore, the algorithm takes into account the power-related control and the inner voltage control loop, and so achieves minimal transients when starting the droop-controlled operation.
AB - Control algorithms for grid-forming inverters play a significant role in both microgrids and grid stability. A common control approach for grid-forming inverters is the droop control, which imitates the droop characteristic of traditional generators. While the steady-state performance of this control is satisfactory, the initial start and synchronization process is challenging. The main issue is that droop-controlled inverters behave like voltage sources, meaning that connecting an inverter to a pre-existing PCC voltage requires perfect synchronization of the voltages. Improper synchronization might lead to overcurrents and consequently to the destruction of the inverter. Synchronization algorithms for grid-forming inverters already exist, but do not usually cover the influence of the inner voltage control loop. Moreover, many of these techniques require a switch between the inverter and the point of common coupling, and also an additional voltage measurement on the grid side of the switch. This paper proposes a start and synchronization process that only requires the inverter measurements and needs no additional voltage measurement on the grid side. Furthermore, the algorithm takes into account the power-related control and the inner voltage control loop, and so achieves minimal transients when starting the droop-controlled operation.
KW - Droop Control
KW - Grid Synchronization
KW - Grid-Forming Control
KW - Inverter Control
KW - Phase-Locked Loop
UR - http://www.scopus.com/inward/record.url?scp=85152013068&partnerID=8YFLogxK
U2 - 10.1109/APPEEC53445.2022.10072235
DO - 10.1109/APPEEC53445.2022.10072235
M3 - Conference contribution
AN - SCOPUS:85152013068
SN - 978-1-6654-6739-1
T3 - Asia-Pacific Power and Energy Engineering Conference, APPEEC
BT - 2022 IEEE PES 14th Asia-Pacific Power and Energy Engineering Conference, APPEEC 2022
PB - IEEE Computer Society
T2 - 14th IEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2022
Y2 - 20 November 2022 through 23 November 2022
ER -