Pump control system and method for controlling a pump with automatic pump model calibration

A pump control system comprising:

• a storage element having stored a plurality of model parameter sets for a plurality of pump speeds, wherein each model parameter set is indicative of an operating value model function (Pω(q)) corresponding to a pump speed (ω);
• control electronics configured to command the pump to run at a set pump speed (ω) based on the operating value model function (Pω)(q)) corresponding to the set pump speed (ω), wherein a corresponding model parameter set of the stored model parameter sets is retrieved from the storage element;
• and
• model updating electronics, wherein the model updating electronics are configured to:
• determine an actual operating value (P) at the set speed (ω);
• compare the actual operating value (P) with a maximum (Pmax) of the operating value model function (Pω(q)) and/or a minimum (Pmin) of the operating value model function (Pω(q));
• and
• automatically determine an updated model parameter set if the actual operating value (P) is higher than the maximum (Pmax) of the operating value model function (Pω(q)) or if the actual operating value (P) is lower than the minimum (Pmin) of the operating value model function (Pω(q)), wherein the updated model parameter set is indicative of a higher new operating value model function (Pω,up(q)) if the actual operating value (P) is higher than the maximum (Pmax) of the operating value model function (Pω(q)), and wherein the updated model parameter set is indicative of a lower new operating value model function (Pω,down(q)) if the actual operating value (P) is lower than the minimum (Pmin) of the operating value model function (Pω)(q)), wherein the storage element is further configured to store the updated model parameter set.