FIELD: transportation.
SUBSTANCE: method is intended to control/regulate fluid conveyor (112) for conveying fluid (118) inside fluid line (114, 116). Method comprises receiving information (128) regarding a setpoint flow rate of fluid within fluid line; determining energy consumption of fluid conveyer during operation within working range (240) of fluid conveyer; controlling fluid conveyer (112), with regard to a generated flow of fluid (118), on basis of information (128) regarding setpoint flow rate of fluid (118) within fluid line (114, 116) in such a way that, setpoint flow rate of fluid is attained and energy consumption required for this is minimised, wherein it is taken into consideration that working range (240) of fluid conveyer is bounded by non-linear boundary (246, 248, 250, 252). Also described is a corresponding device.
EFFECT: reduced power consumption.
14 cl, 2 dwg
