Conditioning device for energy supply networks

A conditioning device, which is not a synchronous machine, for power supply networks comprising:

• a network voltage measurement unit connected to a three-phase power supply network;
• a computation unit connected to the network voltage measurement unit, said computation unit determines conditioning current values (K);
• an inverter connected to a power supply network which feeds in conditioning currents (IK) as a function of determined conditioning current values (K) from said computation unit,
• wherein the computation unit is configured to perform a modeled simulation of a synchronous machine with an implemented linear differential equation system with adaptable linear factors to vary characteristics of the modeled synchronous machine and to provide at least one component (KS) of the conditioning current values (K) as stator currents of the modeled synchronous machine as a function of freely variable synchronous machine parameters;
• and
• a network observation unit configured to readjust, during operation, said freely variable synchronous machine parameters in response to changes of network voltages to provide a reaction of the modeled simulation of the synchronous machine to an actual network-load situation using network voltages (UN) of the power supply network as input variables.