Abstract: A sensor hub may be used to address complex cabling issues. Such sensor hub may include at least one sensor communication device designed to receive sensor signals from at least two sensors and/or to output signals to the at least two sensors; a computer device communicatively connected to the at least one sensor communication device and designed to generate sensor data using the sensor signals; and a transmitting device designed to transmit the sensor data to a user device via a single communications medium. The sensor data indicate addresses which are each assigned to one of the at least two sensors.

Abstract: The invention relates to a method for actively controlling in a feedback control at least one output parameter (fi, Vi, Pi, Qi) of a decentralized power generating unit (1) feeding power into a power supply grid (14) having a plurality of such decentralized power generating units, the power generating unit (1) being coupled to the grid (14) at a grid tied point (16). The actual resistance (Ri), reactance (Xi) and magnitude (|Zi|) of the impedance (Zi) of the power generating unit (1) at the tied point (16) is determined and a first quotient (Ri/|Zi|) between the resistance (Ri) and impedance magnitude (|Zi|) and a second quotient (Xi/|Zi|) between the reactance (Xi) and the impedance magnitude (|Zi|) is calculated. These quotients (Ri/|Zi|, Xi/|Zi|) are used for the feedback control of the at least one output parameter (fi, Vi, Pi, Qi).