Impact of Synchrophasor Estimation Algorithms in ROCOF-based Under-Frequency Load-Shedding

This paper investigates the impact of synchrophasor estimation algorithms in Under-Frequency Load-Shedding (UFLS) and Load-Restoration (LR) schemes, relying on frequency and Rate-of-Change-of-Frequency (ROCOF) measurements produced by Phasor Measurement Units (PMUs). We compare two consolidated window-based synchrophasor estimation algorithms, as representative approaches based on static and dynamic signal models, with a focus on the appropriateness of utilizing PMU-based ROCOF measurements. The performance of the proposed relaying scheme is assessed by means of a Real-Time Digital Simulator implementing the time-domain full-replica dynamic model of the IEEE 39-Bus power system.


Published in:
IEEE Transactions on Power Systems, -, -, 1-11
Year:
Aug 20 2019
Keywords:
Laboratories:




 Record created 2019-08-22, last modified 2019-08-23

POSTPRINT:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)