Enhanced PMU-based Wide Area Measurement System with Integrated Power Quality and Fault Analysis

Abstract

This work proposes an enhanced Wide Area Monitoring System architecture to integrate information provided by heterogeneous measurement devices. In particular, it considers the information collected from Phasor Measurement Units, Power Quality Meters, and Digital Fault Recorders installed at different levels of the transmission grid. The different data are correlated using georeferenced information and the timestamp that is considered for tagging the measurements. The proposed architecture is based on a prototype specifically made to increase the awareness of the information obtained from the field, and it is tested with real data provided by Terna Rete Italia, the Italian Transmission System Operator. The test cases show that the proposed system could be a helpful tool also to perform a deeper analysis on the origin of faults and power quality events detected at different levels of the power grid.