@inproceedings{6251d14010354ef18486438db4ffb6d1,
title = "Multivariable DG impedance modeling for the microgrid stability assessment",
abstract = "Stability of inverter-based distributed generation units (DGs) is highly dependent on the ratio of DG impedance to grid impedance. To assess the system stability both DG and grid impedances should be known beforehand. This paper proposes a multivariable impedance model for droop-based DGs that are typically employed in microgrids. The proposed model is essential when assessing the microgrid stability and can be utilized to design DG adaptive controllers that mitigate the instability issues triggered by grid impedance variations. A frequency sweep identification method with chirp excitation is used to validate the proposed DG impedance model. The results confirm the accuracy of the proposed DG impedance model in contrast with the estimated one.",
keywords = "Distributed Generation, Impedance modeling, Impedance stability",
author = "Azzouz, \{Maher A.\} and Saadany, \{Ehab F.El\}",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 ; Conference date: 22-05-2016 Through 25-05-2016",
year = "2016",
month = jul,
day = "29",
doi = "10.1109/ISCAS.2016.7538881",
language = "British English",
series = "Proceedings - IEEE International Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1642--1645",
booktitle = "ISCAS 2016 - IEEE International Symposium on Circuits and Systems",
address = "United States",
}