Multipurpose Synchronised PQ Meters for Isolated Environments.

Abstract

The quality of the electrical power supply is now a topic of increasin interest. Due to that fact, it is becoming important to be able to measure the quality indexes in distributed and isolated environments: electrical substations, network nodes, wind farms and so on.

Distributed power quality meters have been described previously in the literature [1,2]. In this paper, a system capable of performing these kinds of measurements is presented. It is a multipoint, multipurpose, synchronised and distributed power quality instrument, able to work even in isolated environments.

The main contributions of the system presented here are the capability of working in isolated environments and the synchronisation method it employs between individual meters