Resilience of data centre power system: modelling of sustained operation under outage, definition of metrics, and application

dc.contributor.authorMüller, Uwe
dc.contributor.authorStrunz, Kai
dc.date.accessioned2019-12-16T09:52:43Z
dc.date.available2019-12-16T09:52:43Z
dc.date.issued2019-05-15
dc.description.abstractA novel criterion for quantifying the resilience of power systems supplying data centres is formulated to measure the system's ability to sustain functionality even during an outage. By comparative analysis of two alternative data centre power systems covering apparatus of electrical power supply and environmental control, it is shown that reliability and availability alone are insufficient as metrics to gauge different designs. The gap is bridged by the proposed resilience analysis to further evaluate situations of single and double outages. As a complement to the indicators of single point of failure and double point of failure, respectively, N−1 and N−2 security criteria, the novel metrics of a single point of reduced availability and double point of reduced availability are proposed. These criteria identify those single subsystems or subsystem pairs causing system availability to drop below requested levels in periods when they are out of service. The metrics so offer information on the overall system's availability during times of maintenance and failures. Thanks to this understanding, it is shown that a guided reduction of the number of subsystems considering their relative importance can lead to designs offering desirable trade-offs in terms of complexity, reliability, availability, and resilience.en
dc.description.sponsorshipDFG, 414044773, Open Access Publizieren 2019 - 2020 / Technische Universität Berlinen
dc.identifier.eissn2051-3305
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/10510
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-9442
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/en
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.otherfailure analysisen
dc.subject.othercomputer centresen
dc.subject.otherpower system securityen
dc.subject.otherpower system reliabilityen
dc.titleResilience of data centre power system: modelling of sustained operation under outage, definition of metrics, and applicationen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1049/joe.2018.5520en
dcterms.bibliographicCitation.journaltitleThe Journal of Engineeringen
dcterms.bibliographicCitation.originalpublishernameIET Digital Libraryen
dcterms.bibliographicCitation.originalpublisherplaceStevenageen
tub.accessrights.dnbfreeen
tub.affiliationFak. 4 Elektrotechnik und Informatik>Inst. Energie- und Automatisierungstechnik>FG Energieversorgungsnetze und Integration Erneuerbarer Energien (SENSE)de
tub.affiliation.facultyFak. 4 Elektrotechnik und Informatikde
tub.affiliation.groupFG Energieversorgungsnetze und Integration Erneuerbarer Energien (SENSE)de
tub.affiliation.instituteInst. Energie- und Automatisierungstechnikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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