Patent ID: 11953867
Assignee: GRUNDFOS HOLDING A/S
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  G  H | IPC G  H

Claim 0:
1. A multi-pump control system comprising:
a control module;
a processing module;
a communication interface; and
a storage module;
wherein the control module is configured to change a number of running pumps of a multi-pump system;
wherein the communication interface is configured to receive a signal indicative of a power consumption P and information about a speed ω of at least one of the running pumps before and after at least two different changes of an operating parameter of the running pumps;
wherein the processing module is configured to determine, before and after at least two different changes of the operating parameter of the running pumps, without a measurement of a differential pressure and of a flow, at least two approximated pump characteristics, wherein each of the approximated pump characteristics is unambiguously defined by a pair of parameters;, selectively changing the number of operating pumps based on the pair of parameters.