Method for operating a power device, controller for a power device, and power assembly including a power device and such a controller

A controller for a power device, the controller comprising:

• the controller, which is configured for performing a method for operating the power device by way of the controller, the method including the steps of:
• determining—based on (i) a nominal model formed from inventory data, which includes a first mapping between at least one input variable and at least one output variable, and (ii) a detail model generated during operation of the controller by use of a plurality of measured values, which includes a second mapping between the at least one input variable and the at least one output variable—at least one deviation variable which relates to a deviation of an operating behavior of at least one component of the power device from a standard operating behavior;
• determining a deviation function as a temporal development of at the least one deviation variable;
• and
• using the deviation function as a basis to predict a future development of the at least one component.

A power assembly, comprising:

• a power device;
• and
• a controller, which is configured for performing a method for operating the power device by way of the controller, the method including the steps of:
• determining—based on (i) a nominal model formed from inventory data, which includes a first mapping between at least one input variable and at least one output variable, and (ii) a detail model generated during operation of the controller by use of a plurality of measured values, which includes a second mapping between the at least one input variable and the at least one output variable—at least one deviation variable which relates to a deviation of an operating behavior of at least one component of the power device from a standard operating behavior;
• determining a deviation function as a temporal development of at the least one deviation variable;
• and
• using the deviation function as a basis to predict a future development of the at least one component.