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dc.contributor.author | Susuki, Yoshihiko | en |
dc.contributor.author | Mezic, Igor | en |
dc.contributor.author | Raak, Fredrik | en |
dc.contributor.author | Hikihara, Takashi | en |
dc.contributor.alternative | 薄, 良彦 | ja |
dc.contributor.alternative | 引原, 隆士 | ja |
dc.date.accessioned | 2018-11-19T07:50:11Z | - |
dc.date.available | 2018-11-19T07:50:11Z | - |
dc.date.issued | 2016-10-01 | - |
dc.identifier.issn | 2185-4106 | - |
dc.identifier.uri | http://hdl.handle.net/2433/235216 | - |
dc.description.abstract | Koopman operator is a composition operator defined for a dynamical system described by nonlinear differential or difference equation. Although the original system is nonlinear and evolves on a finite-dimensional state space, the Koopman operator itself is linear but infinite-dimensional (evolves on a function space). This linear operator captures the full information of the dynamics described by the original nonlinear system. In particular, spectral properties of the Koopman operator play a crucial role in analyzing the original system. In the first part of this paper, we review the so-called Koopman operator theory for nonlinear dynamical systems, with emphasis on modal decomposition and computation that are direct to wide applications. Then, in the second part, we present a series of applications of the Koopman operator theory to power systems technology. The applications are established as data-centric methods, namely, how to use massive quantities of data obtained numerically and experimentally, through spectral analysis of the Koopman operator: coherency identification of swings in coupled synchronous generators, precursor diagnostic of instabilities in the coupled swing dynamics, and stability assessment of power systems without any use of mathematical models. Future problems of this research direction are identified in the last concluding part of this paper. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Institute of Electronics, Information and Communications Engineers (IEICE) | en |
dc.publisher.alternative | 電子情報通信学会 | ja |
dc.rights | © 2016 IEICE | en |
dc.subject | power system | en |
dc.subject | nonlinear dynamical system | en |
dc.subject | Koopman operator | en |
dc.subject | spectrum | en |
dc.subject | data-centric | en |
dc.subject | Koopman mode | en |
dc.title | Applied Koopman operator theory for power systems technology | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Nonlinear Theory and Its Applications, IEICE | en |
dc.identifier.volume | 7 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | 430 | - |
dc.identifier.epage | 459 | - |
dc.relation.doi | 10.1587/nolta.7.430 | - |
dc.textversion | publisher | - |
dc.address | Department of Electrical Engineering, Kyoto University | en |
dc.address | Center for Control, Dynamical Systems and Computation, and Department of Mechanical Engineering, University of California Santa Barbara | en |
dc.address | Department of Electrical Engineering, Kyoto University | en |
dc.address | Department of Electrical Engineering, Kyoto University | en |
dcterms.accessRights | open access | - |
出現コレクション: | 学術雑誌掲載論文等 |
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