Preliminary results of a power quality survey in a distribution network bases on No‐Gap PQ meters

Abstract

This paper describes a preliminary experience with the installation and use of a no-gap power quality meter network along a distribution grid in the North of Spain. No-gap power quality meters record all cycles of voltage and current waveform for all the monitored channels. This approach extends the analysis further than the classical approach provided by other power quality meters that records only survey data and events triggered according predefined rules. A comparison with the classical approach is discussed and the results of a two year power quality survey are also provided.This work was supported by the Spanish Government under the R+D initiative INNPACTO with reference IPT-2011-1447-920000 and Spanish R+D initiative with reference ENE2013-42720-R. This work has been also partially supported by E.On distribution by providing both the funding and the grid for the study. The authors would also like to acknowledge Phillip Stachel and Max Domagk from the Institute of Electrical Power Systems and High Voltage Engineering (Dresden) for sharing the Matlab toolbox which allows direct access to the measures in the SQL Server database without the need of proprietary software