Partitioning Power Grids via Nonlinear Koopman Mode Analysis
2014 (English)In: 2014 IEEE PES Innovative Smart Grid Technologies Conference, ISGT 2014, IEEE conference proceedings, 2014, 6816374- p.Conference paper (Refereed)
This paper proposes a new method for partitioning power grids based on the nonlinear Koopman Mode Analysis (KMA). Grid partitioning is the fundamental problem in the controlled islanding strategy. The KMA is a new technique of nonlinear modal decomposition based on properties of the point spectrum of the so-called Koopman operator. The key idea in the proposed method is to determine a set of islanded sub-grids using KMA of data on voltage angle dynamics of every bus. The method is numerically investigated with the IEEE 118-bus test system. It is shown that the proposed method provides partitions on a multiple frequency scale as well as captures the intrinsic structural properties of a grid characterized by spectral graph theory.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2014. 6816374- p.
Controlled islanding, grid partitioning, power system monitoring, spectral graph theory.
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject Electrical Engineering
IdentifiersURN: urn:nbn:se:kth:diva-141410DOI: 10.1109/ISGT.2014.6816374ISI: 000355408800007ScopusID: 2-s2.0-84901923492ISBN: 978-1-4799-3652-6OAI: oai:DiVA.org:kth-141410DiVA: diva2:696615
2014 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2014, Washington, DC, United States, 19 February 2014 through 22 February 2014
QC 201406132014-02-142014-02-142015-06-26Bibliographically approved