Local anomaly detection analysis in distribution grid based on IEC 61850-9-2 LE SV voltage signals

This paper introduces an approach of local voltage anomaly detection in electric power distribution grid using IEC 61850-9-2 LE Sampled Values (SV) as transmission protocol [1]. The approach was implemented and tested in a real-time simulation unit, where a defined distribution grid provides simulated voltage data. An analysis of transmitted samples on a receiver and computation device according to power quality measurements and their limits due to dynamic behaviour is done. The goal of our proposed anomaly detection is in contrast to previous approaches to detect disturbances caused by cyberattacks on ICS components in distribution grids based on an open communication interface. This paper defines the first part of detection at a local node in a defined grid configuration.