System for supplying electromotive consumers with electric energy

A power supply network for at least one load, the at least one load including at least one electricity generation sets operating in parallel, the power supply network comprising:

• an inverter coupling the at least one load to the power supply network;
• a regulator regulating at least one of a frequency and a rotation-speed and controlling the inverter via a control input, an input of the regulator being supplied with at least one of a frequency actual value and a rotation-speed actual value of the inverter, at least one of a frequency nominal value and a rotation-speed nominal value for stabilization of the power supply network, and at least one of a frequency additional signal and a rotation-speed additional signal, the at least one of the frequency additional signal and the rotation-speed additional signal being derived from at least one of an input voltage of the inverter and a network voltage, the at least one of the frequency additional signal and the rotation-speed additional signal being generated so that at least one of the frequency and the rotation speed of the at least one load is reduced as at least one of the network voltage and the input voltage of the inverter falls.

A control loop for at least two loads at least one of electrically and mechanically coupled to one another and operated from at least one power network, comprising:

• an inverter coupling the at least two loads to the at least one power network;
• a regulator for regulating at least one of a frequency and a rotation-speed, the regulator controlling the inverter via a control input, an input of the regulator being supplied with at least one of a frequency actual value and a rotation-speed actual value of the inverter, at least one of a frequency nominal value and a rotation-speed nominal value, and at least one of a frequency additional signal value and a rotation-speed additional signal derived from an input current flowing from at least one of the at least one power network into the inverter and a relevant power, at least one of the frequency additional signal value and the rotation speed additional signal being generated so that at least one of the frequency and the rotation speed is reduced as the at least one of the input current and an input power of the inverter rises.