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2021-01-20Zeitschriftenartikel DOI: 10.3390/sym13020157
Small-Signal Stability of Multi-Converter Infeed Power Grids with Symmetry
dc.contributor.authorYu, Jiawei
dc.contributor.authorYang, Ziqian
dc.contributor.authorKurths, Jurgen
dc.contributor.authorZhan, Meng
dc.date.accessioned2021-03-11T16:54:31Z
dc.date.available2021-03-11T16:54:31Z
dc.date.issued2021-01-20none
dc.date.updated2021-02-03T20:09:03Z
dc.identifier.urihttp://edoc.hu-berlin.de/18452/23192
dc.description.abstractTraditional power systems have been gradually shifting to power-electronic-based ones, with more power electronic devices (including converters) incorporated recently. Faced with much more complicated dynamics, it is a great challenge to uncover its physical mechanisms for system stability and/or instability (oscillation). In this paper, we first establish a nonlinear model of a multi-converter power system within the DC-link voltage timescale, from the first principle. Then, we obtain a linearized model with the associated characteristic matrix, whose eigenvalues determine the system stability, and finally get independent subsystems by using symmetry approximation conditions under the assumptions that all converters’ parameters and their susceptance to the infinite bus (Bg) are identical. Based on these mathematical analyses, we find that the whole system can be decomposed into several equivalent single-converter systems and its small-signal stability is solely determined by a simple converter system connected to an infinite bus under the same susceptance Bg. These results of large-scale multi-converter analysis help to understand the power-electronic-based power system dynamics, such as renewable energy integration. As well, they are expected to stimulate broad interests among researchers in the fields of network dynamics theory and applications.eng
dc.description.sponsorshipNational Natural Science Foundation of China
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY 4.0) Attribution 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectpower-electronic-based power system dynamicseng
dc.subjectmulti-converter infeed power systemeng
dc.subjectsmall-signal stabilityeng
dc.subjectlarge scale system analysiseng
dc.subjectnetwork dynamicseng
dc.subject.ddc500 Naturwissenschaften und Mathematiknone
dc.titleSmall-Signal Stability of Multi-Converter Infeed Power Grids with Symmetrynone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/23192-8
dc.identifier.doi10.3390/sym13020157none
dc.identifier.doihttp://dx.doi.org/10.18452/22569
dc.type.versionpublishedVersionnone
local.edoc.container-titleSymmetrynone
local.edoc.pages25none
local.edoc.type-nameZeitschriftenartikel
local.edoc.institutionMathematisch-Naturwissenschaftliche Fakultätnone
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-publisher-nameMDPInone
local.edoc.container-publisher-placeBaselnone
local.edoc.container-volume13none
local.edoc.container-issue2none
dc.description.versionPeer Reviewednone
local.edoc.container-articlenumber157none
dc.identifier.eissn2073-8994
local.edoc.affiliationYu, Jiawei; State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China, M201871402@hust.edu.cnnone
local.edoc.affiliationYang, Ziqian; State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China, D201780395@hust.edu.cnnone
local.edoc.affiliationKurths, Jurgen; Potsdam Institute for Climate Impact Research, 601203 Potsdam, Germany, JKurths@agnld.uni-potsdam.de; Department of Physics, Humboldt University of Berlin, Newtonstrasse 15, 12489 Berlin, Germany , JKurths@agnld.uni-potsdam.de; Centre for Analysis of Complex Systems, Sechenov First Moscow State Medical University, 119991 Moscow, Russia, JKurths@agnld.uni-potsdam.denone
local.edoc.affiliationZhan, Meng; State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China, zhanmeng@hust.edu.cnnone

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