Derviskadic, AsjaZuo, YihuiFrigo, GuglielmoPaolone, Mario2019-06-182019-06-182019-06-182018-01-0110.1109/ISGTEurope.2018.8571481https://infoscience.epfl.ch/handle/20.500.14299/156898WOS:000458690200026The paper describes a local under-frequency load shedding and load restoration scheme, that exploits frequency and Rate-of-Change-of-Frequency (ROCOF) measurements produced by Phasor Measurement Units (PMUs) as detectors of a large contingency. The paper further discusses the appropriateness of using the synchrophasor model for estimating ROCOF during fast transients following a severe generation-load imbalance. The performance of the proposed relaying scheme is compared with a frequency-only based strategy, by means of a real-time digital simulator implementing the time-domain full-replica model of the IEEE 39 bus system.Computer Science, Hardware & ArchitectureEngineering, Electrical & ElectronicComputer ScienceEngineeringphasor measurement unit (pmu)rate-of-change-of-frequency (rocof)under frequency load shedding (ufls)synchrophasor estimationinterpolated-dftphasorvalidationprotectionalgorithmtext::conference output::conference proceedings::conference paper