Method and system for determining characteristic parameters of a hydraulic network

A computer system for determining characteristic parameters of a hydraulic network (1) that comprises a plurality of parallel zones (Z1, Z2) with a regulating valve (V1, V2) in each zone (Z1, Z2) for regulating a flow of fluid (φ1, φ2) through the respective zone (Z1, Z2), the regulating valves (V1, V2) representing a variable flow capacity (Kvalve,a, Kvalve,b) in each zone (Z1, Z2) and the characteristic parameters including static flow capacity values (Kex,a, Kex,b) of the zones (Z1, Z2), the computer system comprising a processor configured to:

• store measurement data sets which include valve positions for a value of a hydraulic system variable of the hydraulic network (1) measured with the regulating valves (V1, V2) set to the respective valve positions;
• calculate the characteristic parameters from a plurality of measurement data sets, by grouping related measurement data sets, which include the same value of the hydraulic system variable but different valve positions, and using the value of flow capacity (Kvalve,a, Kvalve,b) of the regulating valves (V1, V2) at the valve positions included in the data sets;
• and
• use the characteristic parameters of the hydraulic network (1) to set operational values of the hydraulic network (1).

A computer program product comprising a non-transient computer-readable medium having stored thereon computer program code configured to control one or more processors of a computer system (10) for determining characteristic parameters of a hydraulic network (1) that comprises a plurality of parallel zones (Z1, Z2) with a regulating valve (V1, V2) in each zone (Z1, Z2) for regulating a flow of fluid (φ1, φ2) through the respective zone (Z1, Z2), the regulating valves (V1, V2) representing a variable flow capacity (Kvalve,a, Kvalve,b) in each zone (Z1, Z2) and the characteristic parameters including static flow capacity values (Kex,a, Kex,b) of the zones (Z1, Z2), such that the computer system (10):

• stores measurement data sets which include valve positions for a value of a hydraulic system variable of the hydraulic network (1) measured with the regulating valves (V1, V2) set to the respective valve positions;
• calculate the characteristic parameters from a plurality of measurement data sets, by grouping related measurement data sets, which include the same value of the hydraulic system variable but different valve positions, and using the value of flow capacity (Kvalve,a, Kvalve,b) of the regulating valves (V1, V2) at the valve positions included in the data sets;
• and
• uses the characteristic parameters of the hydraulic network (1) to set operational values of the hydraulic network (1).