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Power Quality Monitoring System – Voltage Dips, Short Interruptions and Flicker
Jun 11th, 2008 by Hans De Keulenaer
Review of this paper requested from Marcel by July 15. Other comments & input welcome.
General conclusion : the paper is interesting, but should only be considered with major modifications
General remarks
1) Most of the text in the paper is basic Power Quality knowledge that can be found in several books (e.g. the flicker part and the aggregation of dips). The part on the distribution of dips during the day and during the year is interesting and new. This part, however, should be more statistically justified (e.g., what is the statistical basis for the trendline in fig. 9?). To have a good paper, it would be interesting to discuss the observations (why do more interruptions occur in winter months?).
2) The references list is very outdated and does not give the impression that the author is aware of the current state of Power Quality research. Reference 1, 3 and 4 seem to be too technical detailed for the current paper.
Small remarks
Pg2: the author states that there are 2 approaches to tackle PQ-problems. Why does the author not consider to adapt the electricity grid in a way that less disturbances occur as an option?
Pg4, figure4: The caption states “short interruption of an MV customer” . This could also be a long interruption and the voltage level suggests LV.
Pg6: The author states that the monitoring campaign represents the pq-level of the entire medium voltage. Could you prove this statistically, since you only measure 200 out of the 2800 customers.