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dc.contributor.authorFavre-Perrod, Patrick-
dc.contributor.authorSattinger, Walter-
dc.contributor.authorKorba, Petr-
dc.contributor.authorRamirez Gonzalez, Miguel-
dc.contributor.authorSegundo Sevilla, Felix Rafael-
dc.contributor.authorWartmann, Bruno-
dc.description.abstractUnder-frequency Load Shedding Schemes (UFLS) are a well-established part of any under-frequency defence plan. Their future effectiveness in systems with increased penetration of renewable energy sources without rotating mass should however be questioned: lower inertia implies higher frequency gradients; more power electronics implies higher harmonics. Both factors will concur to make frequency measurements and short relay operation times more challenging: In this contribution, the impact of the penetration of renewable sources on the rate of change of frequency (RoCoF) in continental Europe has been simulated with the dynamic ENTSO-E model for different penetration levels, confirming the higher RoCoF and lower frequency nadir to be expected in case of large disturbances. The operation of the current UFLS scheme is included in the model and has been compared with a scheme incorporating a RoCoF criterion. The authors have also performed laboratory tests in order to assess the use of RoCoF-based load shedding as an improvement to frequency-only based load shedding schemes. Central European transmission and distribution system operators have established joint bodies for agreeing on the best evolution of underfrequency defence plans: challenges include frequency measurement and correct coordination of several control schemes and approaches within the CE transmission system community.de_CH
dc.publisherInstitution of Engineering and Technologyde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectUnder-frequency load sheddingde_CH
dc.subjectRate of change of frequencyde_CH
dc.subjectFrequency stabilityde_CH
dc.subject.ddc621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnikde_CH
dc.titleExperimental and HIL investigation of under-frequency and rate of change of frequency load shedding schemes in interconnected networks with high penetration of renewable generationde_CH
dc.typeKonferenz: Paperde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitut für Energiesysteme und Fluid-Engineering (IEFE)de_CH
zhaw.conference.detailsThe 26th International Conference and Exhibition on Electricity Distribution (CIRED), online, 20-23 September 2021de_CH
zhaw.funding.euNot specifiedde_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.title.proceedingsCIRED 2021 - The 26th International Conference and Exhibition on Electricity Distributionde_CH
zhaw.webfeedElektrische Energiesysteme und Smart Gridsde_CH
Appears in collections:Publikationen School of Engineering

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