Improvements of on-line measurement in distribution system using a new adding a/d converter

Abstract

A/D converters are bottleneck of modern distribution digital measurement systems. This problem is especially emphasized in cases of signals with high amplitude dynamics and/or fast and precise multichannel measurement, which are often present in distribution system on-line measurement. In the paper, a new type of A/D converter, adding A/D converter, is proposed to meet these requirements. It is tested with the signals from real distribution network, i.e. in presence of harmonic pollution and high signal dynamics. The results shows that it offers improvements in both cases of on-line digital measurement. © 1995 IEEE