Reactive Power Control

The reactive power control can take place through direct parameter settings (Q, cos φ) in the installation assistant, as a variable specification from the grid operator via the Modbus interface or via analog signals. The reactive power control as characteristic curve function can also be regulated as a function of the voltage at the point of interconnection Q(V). The values are specified as a percentage of the maximum AC power. A proper meter for measuring the relevant electrical variables (V, P, Q) is required at the grid-connection point. A pure voltage measurement is not sufficient. A suitable energy meter is also required at the point of interconnection for cos φ specifications in control mode.