Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) |
| Untertitel | Proceedings |
| Herausgeber (Verlag) | Institute of Electrical and Electronics Engineers Inc. |
| Seiten | 768-773 |
| Seitenumfang | 6 |
| ISBN (elektronisch) | 978-1-7281-2455-1 |
| ISBN (Print) | 978-1-7281-2456-8 |
| Publikationsstatus | Veröffentlicht - Juni 2019 |
| Veranstaltung | 10th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2019 - Xi'an, China Dauer: 3 Juni 2019 → 6 Juni 2019 |
Publikationsreihe
| Name | IEEE International Symposium on Power Electronics for Distributed Generation Systems |
|---|---|
| ISSN (Print) | 2329-5759 |
| ISSN (elektronisch) | 2329-5767 |
Abstract
In this paper, the sequence impedance-based stability analysis is applied to droop-controlled converters with an inner cascaded voltage and current control. In general, the stability analysis of converter-dominated grids by means of Thévenin and Norton equivalent representations offers a method to analyse the behaviour of large converter systems. First, an analytical model of a voltage-controlled converter is implemented. A sequence impedance model is then proposed, which not only predicts the effect of the droop control on the system's stability, but also reveals its frequency coupling effect. Furthermore, a small converter cluster of two droop-controlled entities is analysed with respect to their impedances. These models and the stability of the converter cluster are validated in time-domain simulations. The close correlation between sequence impedance model and time-domain simulation confirms the effectiveness of the derived model.
ASJC Scopus Sachgebiete
- Informatik (insg.)
- Computernetzwerke und -kommunikation
- Energie (insg.)
- Energieanlagenbau und Kraftwerkstechnik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
- Mathematik (insg.)
- Steuerung und Optimierung
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2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG): Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. S. 768-773 8807529 (IEEE International Symposium on Power Electronics for Distributed Generation Systems).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Sequence Impedance-Based Stability Analysis of Droop-Controlled AC Microgrids
AU - Dokus, Marc
AU - Mertens, Axel
N1 - Funding Information: This work was funded by the Deutsche Forschungsge-meinschaft (DFG, German Research Foundation) – project identification number 359921210.
PY - 2019/6
Y1 - 2019/6
N2 - In this paper, the sequence impedance-based stability analysis is applied to droop-controlled converters with an inner cascaded voltage and current control. In general, the stability analysis of converter-dominated grids by means of Thévenin and Norton equivalent representations offers a method to analyse the behaviour of large converter systems. First, an analytical model of a voltage-controlled converter is implemented. A sequence impedance model is then proposed, which not only predicts the effect of the droop control on the system's stability, but also reveals its frequency coupling effect. Furthermore, a small converter cluster of two droop-controlled entities is analysed with respect to their impedances. These models and the stability of the converter cluster are validated in time-domain simulations. The close correlation between sequence impedance model and time-domain simulation confirms the effectiveness of the derived model.
AB - In this paper, the sequence impedance-based stability analysis is applied to droop-controlled converters with an inner cascaded voltage and current control. In general, the stability analysis of converter-dominated grids by means of Thévenin and Norton equivalent representations offers a method to analyse the behaviour of large converter systems. First, an analytical model of a voltage-controlled converter is implemented. A sequence impedance model is then proposed, which not only predicts the effect of the droop control on the system's stability, but also reveals its frequency coupling effect. Furthermore, a small converter cluster of two droop-controlled entities is analysed with respect to their impedances. These models and the stability of the converter cluster are validated in time-domain simulations. The close correlation between sequence impedance model and time-domain simulation confirms the effectiveness of the derived model.
KW - Converter cluster
KW - Droop control
KW - Harmonic stability
KW - Microgrid
KW - Small-signal sequence impedance
UR - http://www.scopus.com/inward/record.url?scp=85071956106&partnerID=8YFLogxK
U2 - 10.1109/PEDG.2019.8807529
DO - 10.1109/PEDG.2019.8807529
M3 - Conference contribution
AN - SCOPUS:85071956106
SN - 978-1-7281-2456-8
T3 - IEEE International Symposium on Power Electronics for Distributed Generation Systems
SP - 768
EP - 773
BT - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2019
Y2 - 3 June 2019 through 6 June 2019
ER -