A distributed system for electric power quality measurement

The problem of measuring power-quality is becoming an impelling need due to the proliferation of disturbing loads in the electric power systems. Unfortunately, the identification of the sources disturbing the system cannot be achieved by means of measurements in a single metering section of the electric network. This paper proposes a distributed measuring system, able to monitor a number of power-quality indices on every load connected to the same point of Common Coupling, transmit the measured values to a master device that processes them in order to locate the sources of disturbances and quantify the effects of such disturbances on power quality. The results of some experimental work performed on a real, low-voltage network are reported.

[1]  Alessandro Ferrero,et al.  The effect of net latency on the uncertainty in distributed measurement systems , 2002, IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276).

[2]  A. P. J. Rens,et al.  On techniques for the localisation of multiple distortion sources in three‐phase networks: Time domain verification , 2001 .

[3]  A. Ferrero,et al.  A linearisation method for commercial Hall-Effect current transducers , 2000, Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference [Cat. No. 00CH37066].

[4]  Alessandro Ferrero,et al.  A calibration procedure for a digital instrument for electric power quality measurement , 2002, IEEE Trans. Instrum. Meas..

[5]  A. J. Berrisford.  Should a utility meter harmonics , 1992 .

[6]  Alessandro Ferrero,et al.  Revenue metering in the presence of distortion and unbalance: myths and reality , 1998, 8th International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.98EX227).