Multi-Way Partitioning of Power Networks via Koopman Mode Analysis. Issue 30 (2015)

• Record Type: Journal Article
• Authors: Raak, Fredrik; Susuki, Yoshihiko; Hikihara, Takashi
• Is Part Of: IFAC-PapersOnLine. Volume 48:Issue 30(2015)
• Page Start: 421
• Page End: 426
• Publication Date: 2015
• Subjects: Power system monitoring -- spectral graph theory -- power network partitioning -- coherency identification; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2015.12.415
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: This paper deals with the partitioning problem of power networks by applying the so-called Koopman Mode Analysis (KMA) to sampled voltage-angle data. KMA is based on the so-called Koopman operator defined for arbitrary nonlinear dynamical system and provides an infinite dimensional but linear description of the evolving nonlinear dynamics. By computing a set of dynamically relevant modes using the KMA, a new partitioning method for power networks is introduced, and multiple partitions are derived for a benchmark system. The obtained result is compared with two conventional methods previously applied to the partitioning problem; spectral graph theory and slow coherency.