Method for operating a flow producing unit for at least one fan and control system

Abstract

The present disclosure refers to a method for operating a flow producing unit as well as a control system comprising at least one flow producing unit. The flow producing unit is particularly a rigidly installed system in a building. The flow producing unit has a fan control, which controls a fan for producing an airflow. A control model is provided to fan control, which defines a correlation between a room air parameter, an environmental air parameter, as well as a fan operating parameter for fan. By means of measurement of a room air measurement value for the room air parameter and a measurement of an environmental air measurement value for the environmental air parameter, a suitable fan operating parameter for control of fan can be selected and adjusted based on control model. Thereby the fan operating parameter is selected so that the required electrical energy for operating the fan is minimum.

1 . A method for operating a flow producing unit comprising a fan control that is configured to control at least one fan, wherein the method comprises:
 providing training data for a model creation device configured for machine learning, wherein the training data comprise at least one room air parameter, at least one fan operating parameter and at least one environmental air parameter,   determining a control model, defining a correlation between the at least one room air parameter, the at least one fan operating parameter and the at least one environmental air parameter by means of the model creation device,   determining a current room air measurement value for each room air parameter respectively that is used as a controlled parameter,   determining at least one current environmental air measurement value for the at least one environmental air parameter or for multiple environmental air parameters,   control of the at least one fan using the control model, the at least one current room air measurement value and the at least one current environmental air measurement value, so that a room air parameter used as controlled parameter remains in a predefined parameter value range and thereby electrical energy required for operation of the fan is minimum.   
     
     
         2 . The method according to  claim 1 , wherein the fan control controls the at least one fan based on the control model independent from the model creation device. 
     
     
         3 . The method according to  claim 1 , wherein the model creation device is realized separately from the fan control. 
     
     
         4 . The method according to  claim 1 , wherein the model creation device and the fan control are communicatively connected. 
     
     
         5 . The method according to  claim 1 , wherein the at least one room air parameter comprises one or more of the following parameters: a room air temperature, a room air humidity, a room air pressure, a room air component, which describes a fraction or an amount of a gas component of a room air. 
     
     
         6 . The method according to  claim 1 , wherein the at least one environmental air parameter comprises one or more of the following parameters: an environmental air temperature, an environmental air humidity, an environmental air pressure, an environmental air component, which describes a fraction or an amount of a gas component of an environmental air. 
     
     
         7 . The method according to  claim 1 , wherein the at least one fan operating parameter comprises one or more of the following parameters: a fan rotational speed, a fan torque, a motor voltage of an electric motor of the fan, a motor current of an electric motor of the fan, a mechanical and/or electrical power of the fan. 
     
     
         8 . The method according to  claim 1 , wherein the training data additionally comprise at least one condition parameter and/or at least one geographic parameter. 
     
     
         9 . The method according to  claim 1 , wherein the training data comprise in addition at least one fan operating parameter, wherein the model creation device creates the control model by learning the training data. 
     
     
         10 . The method according to  claim 1 , wherein the model creation device, whereby the model creation device carries out a simulation at different parameter values of the at least one fan operating parameter based on the training data in order to create the control model. 
     
     
         11 . The method according to  claim 1  whereby the at least one fan is controlled so that a rotational speed of the fan is as low as possible in order to maintain the at least one room air parameter in the predefined parameter value range. 
     
     
         12 . The method according to  claim 1 , wherein the controlled parameter is a room air temperature. 
     
     
         13 . The method according to  claim 1 , wherein the control model depends on a fan type. 
     
     
         14 . A control system comprising a model creation device, a flow producing unit having at least one fan, having at least one room sensor and at least one environment sensor and having at least one fan control that is configured to control the at least one fan,
 wherein the model creation device is configured for machine learning and is configured to determine a control model for the fan control based on training data,   wherein the training data comprise at least one room air parameter, at least one fan operating parameter and at least one environmental air parameter, and wherein the control model describes a correlation between the at least one room air parameter, the at least one fan operating parameter and the at least one environmental air parameter, wherein the at least one room sensor is configured to determine a current room air measurement value for each room air parameter respectively that is used as controlled parameter,   wherein the at least one environment sensor is configured to determine at least one current environmental air measurement value for the at least one environmental air parameter or for multiple of the environmental air parameters,   and wherein the fan control is configured to control the at least one fan using the control model, the at least one current room air measurement value, so that a room air parameter used as controlled parameter remains in a predefined parameter value range, and thereby electrical energy required for operation of the fan is minimum.   
     
     
         15 . The method according to  claim 3 , wherein the model creation device and the fan control are communicatively connected. 
     
     
         16 . The method according to  claim 15 , wherein the at least one room air parameter comprises one or more of the following parameters: a room air temperature, a room air humidity, a room air pressure, a room air component, which describes a fraction or an amount of a gas component of a room air. 
     
     
         17 . The method according to  claim 16 , wherein the at least one environmental air parameter comprises one or more of the following parameters: an environmental air temperature, an environmental air humidity, an environmental air pressure, an environmental air component, which describes a fraction or an amount of a gas component of an environmental air.