Method and apparatus for training model for predicting temperature rise of heating element in switchgear

An apparatus for training a model for predicting a temperature rise of a heating element in a switchgear, comprising:

• at least one processor;
• and
• at least one memory comprising instructions stored thereon which, when executed by the at least one processor, cause the at least one processor to perform acts comprising:
• obtaining a model for predicting the temperature rise, the model comprising a plurality of inputs, an output, and several parameters to be determined;
• obtaining n+1 sets of physical quantities in relation to the heating element, each set of physical quantities being collected at a corresponding one of n+1 time points spaced apart from each other by a time step in a normal operation state of the heating element, each set of physical quantities comprising a current and an actual temperature of the heating element and an ambient temperature;
• converting the actual temperature in each set of physical quantities into an actual temperature rise based on the corresponding ambient temperature;
• and
• training the model with the current, the actual temperature rise and the ambient temperature to determine the several parameters.