CARLO GAVAZZI POWERSOFT Instruction Manual page 62

PowerSoft
The suggested contractual power can be defined, choosing Match max on
the Confidence level selection, as the sequence of the maximum of the values
relevant to each one.
The definition for the optimal contractual power is to be chosen by the
user considering the fixed cost of the power (cost per kW), the number of
expected overpower demands, and the cost of the penalties due for them.
On the graph of the optimised power, the following data are displayed: the
blue dots are the power values stored in the database (and relevant to the
selected instrument in the selected period); the light green line is the median
of the power (blue dot) values; the dark green one is relevant to the
arithmetical mean of the same data. The red line is the suggested
contractual power.
The first visual analysis is to detect any anomalous points: their presence
can be deduced in case of scattered blue points and if the median is far
from the arithmetical mean. The result is that the proposed red line is
meaningless with respect to the actual consumptions (the ideal situation is
when the red line is close to the higher of the blue dots). The anomalous
points are to be deleted (as explained above) excluding the
holidays/failure/strike days and with the automatic filter (2- Erase anomalous
points button). When the analysis is consistent with the expected results, the
graph or the correspondent table (Grid tab) can be used, printed, or
exported.
5.8.3.3 I
MPORTANT NOTE
This analysis process has been developed to be automatic, stable, and
accurate, even in case of anomalies stored in the database. As all the
automatic processes, in case of unexpected or heavy anomalies, it can fail.
The critical ability and supervision of the operator is thus indispensable to
avoid any incorrect analysis. For this reason this module has been called
Analysis support, being actually a useful tool for the final analysis which is to
be carried out by the user.
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PowerSoft – Instruction manual