Method for controlling a plurality of compressors (21, 22, 23) coupled to a compressed-air installation, wherein the method comprises the steps of: - providing: ∘ a plurality of compressors (21, 22, 23), ∘ a main controller to control the compressors (21, 22, 23), and ∘ a pressure sensor, coupled to the compressed-air installation and connected with the main controller, - obtaining, in the main controller, capacity data of the compressors (21, 22, 23); - obtaining, in the main controller, a minimum pressure for the compressed-air installation; - measuring, with the pressure sensor, a pressure value of the compressed-air installation; - transmitting, with the main controller, an electric control signal to at least one of the compressors (21, 22, 23), in order to control the at least one of the compressors (21, 22, 23) to supply a compressed-air inflow rate (Q Ia, Q Ib, Q Ic) into the compressed-air installation with the compressors in dependence on: ▪ a pressure difference between the measured pressure value and the obtained minimum pressure for the compressed-air installation, and ▪ the obtained capacity data of the compressors (21, 22, 23), characterised in that the method further comprises the steps of: - providing a flow sensor, coupled to the compressed-air installation and connected to the main controller; - measuring, with the flow sensor, a compressed-air outflow rate (Qu) of the compressed-air installation, wherein the inflow rate (Q Ia, Q Ib, Q Ic) to be supplied is determined on the basis of the measured outflow rate (Qu) and the measured pressure value, and wherein the step of the transmitting an electric control signal with the main controller to at least one of the compressors (21, 22, 23) to supply the determined compressed-air inflow rate (Q Ia, Q Ib, Q Ic) takes place in further dependence on: ▪ the pressure difference between the measured pressure value and the obtained minimum pressure for the compressed-air installation, ▪ the obtained capacity data of the compressors (21, 22, 23), and ▪ the measured outflow rate (Qu). - providing: ∘ a plurality of compressors (21, 22, 23), ∘ a main controller to control the compressors (21, 22, 23), and ∘ a pressure sensor, coupled to the compressed-air installation and connected with the main controller, ∘ a plurality of compressors (21, 22, 23), ∘ a main controller to control the compressors (21, 22, 23), and ∘ a pressure sensor, coupled to the compressed-air installation and connected with the main controller, - obtaining, in the main controller, capacity data of the compressors (21, 22, 23); - obtaining, in the main controller, a minimum pressure for the compressed-air installation; - measuring, with the pressure sensor, a pressure value of the compressed-air installation; - transmitting, with the main controller, an electric control signal to at least one of the compressors (21, 22, 23), in order to control the at least one of the compressors (21, 22, 23) to supply a compressed-air inflow rate (Q Ia, Q Ib, Q Ic) into the compressed-air installation with the compressors in dependence on: ▪ a pressure difference between the measured pressure value and the obtained minimum pressure for the compressed-air installation, and ▪ the obtained capacity data of the compressors (21, 22, 23), ▪ a pressure difference between the measured pressure value and the obtained minimum pressure for the compressed-air installation, and ▪ the obtained capacity data of the compressors (21, 22, 23), - providing a flow sensor, coupled to the compressed-air installation and connected to the main controller; - measuring, with the flow sensor, a compressed-air outflow rate (Qu) of the compressed-air installation, wherein the inflow rate (Q Ia, Q Ib, Q Ic) to be supplied is determined on the basis of the measured outflow rate (Qu) and the measured pressure value, and wherein the step of the transmitting an electric control signal with the main controller to at least one of the compressors (21, 22, 23) to supply the determined compressed-air inflow rate (Q Ia, Q Ib, Q Ic) takes place in further dependence on: ▪ the pressure difference between the measured pressure value and the obtained minimum pressure for the compressed-air installation, ▪ the obtained capacity data of the compressors (21, 22, 23), and ▪ the measured outflow rate (Qu). ▪ the pressure difference between the measured pressure value and the obtained minimum pressure for the compressed-air installation, ▪ the obtained capacity data of the compressors (21, 22, 23), and ▪ the measured outflow rate (Qu).