Patent Document ID: 20060155514
Application ID: 11297842
Patent Flag: 0

Claim One:
1. A method of tracking the performance of an industrial appliance (E) in which, in a learning phase, over a reference period: a) a model (M) for providing an estimate (We) of the electrical power consumed based on the values of the set (F) of operating parameters of the industrial appliance (E) is calibrated; b) the distribution of a random variable representing overconsumption, that is, the difference between the measured electrical power (W) and the estimated value (W e ) based on the model (M), is calibrated; and c) in a real-time tracking phase: i) a set (F) of operating parameters of the industrial appliance (E), and the electrical power consumed (W) by the appliance, are measured, ii) an estimate (We) of the quantity representing the electrical power consumed is calculated, in real-time, using the model (M), based on the values of the set (F) of operating parameters of the industrial appliance (E), iii) the difference between the measured value (W) of the electrical power consumed (W) and the estimated value (W e ) provided by the model (M) is calculated, to obtain the overconsumption value, iv) based on a statistical test on the overconsumption variable, using the distribution of this variable, an overconsumption score is deduced from this corresponding to a probability of overconsumption (p 1 ) and constituting an overconsumption indicator, v) an alarm is triggered if the probability of overconsumption (p 1 ) exceeds a given overconsumption probability threshold (s p1 ).