Abstract: A disclosed method of determining operating states of a fan uses a digital image of the fan and at least one operating parameter-specific algorithm. In a first stage, the method includes generating the digital image of the fan as a representation of the fan's properties, the representation based on one or more mathematical calculation models and optionally known data. The method further includes generating the at least one operating parameter-specific algorithm based on at least one of known relationships and characteristic curves, and calculating component states of the fan via the digital image, wherein the calculation of component states is based on virtual sensors. The method further includes generating a system behavior algorithm that calculates operating parameters of the fan based on the component states and optionally generates predictions relating to the operation of the fan.

Abstract: A method is used to identify impending or previously occurring condensation on/in electric motors, in particular on/in electric motors as a component of fans or fan groups. It includes the following method steps: Determining component temperatures, preferably surface temperatures on the electronics, on/in the motor, on/in the fan, or on/in fan groups; Determining the dew point temperature or individual dew point temperatures on the electronics, in/on the motor, fan, or on/in fan groups; Comparing the respective component temperature with the respective dew point temperature and concluding a formation of condensation has already taken place or is imminent when the component temperature approaches the dew point temperature or when the dew point temperature is undershot. A further method serves to prevent the formation of condensate and/or to eliminate/remove condensate on/in electric motors, in particular on/in electric motors as a component of fans or fan groups.

Abstract: A disclosed method of determining operating states of a fan uses a digital image of the fan and at least one operating parameter-specific algorithm. In a first stage, the method includes generating the digital image of the fan as a representation of the fan's properties, the representation based on one or more mathematical calculation models and optionally known data. The method further includes generating the at least one operating parameter-specific algorithm based on at least one of known relationships and characteristic curves, and calculating component states of the fan via the digital image, wherein the calculation of component states is based on virtual sensors. The method further includes generating a system behavior algorithm that calculates operating parameters of the fan based on the component states and optionally generates predictions relating to the operation of the fan.