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A robust neural network filter for electricity demand prediction

✍ Scribed by J. T. Connor

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
1004 KB
Volume
15
Category
Article
ISSN
0277-6693

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✦ Synopsis

This paper is concerned with one-day-ahead hourly predictions of electricity demand for Puget Power, a local electricity utility for the Seattle area. Standard modelling techniques, including neural networks, will fail 'when the assumptions of the model are violated. It is demonstrated that typical modelling assumptions such as no outliers or level shifts are incorrect for electric power demand time series. A filter which removes or lessens the significance of outliers and level shifts is demonstrated. This filter produces 'clean data' which is used as the basis for future robust predictions. The robust predictions are shown to be better than non-robust counterparts on electricity load data. The outliers identified by the filter are shown to correspond with suspicious data. Finally, the estimated level shifts are in agreement with the belief that load growth is taking place year to year.

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