Patent ID: 9382903
Filing Date: 2016-07-05
CPC Classification: F04B,F04D,G05B

Claim Text:
1. A method for optimizing energy efficiency of a pumping system including at least one pump controlling a fluid level of a reservoir, the method including a system identification stage and an energy efficiency optimization stage, wherein the system identification stage comprises: determining pump characteristics for the at least one pump; operating the at least one pump with a range of flow rate conditions; determining a set of data points, wherein a data point in the set contains information on a system head and a flow rate within a range, where the system head is a sum of a static head and a dynamic head, where the static head is a vertical fluid lift requirement set for the pump and the dynamic head is an effect of flow-rate dependent flow losses; calculating system characteristics representing effects of the static head and the dynamic head on the system head on the basis of the set of data points; calculating energy efficiency optimization characteristics of the at least one pump on a basis of the pump characteristics and the system characteristics; and wherein the energy efficiency optimizing stage is performed after the system identification phase and comprises: determining a present static head value; choosing an energy consumption minimizing value for a pump control parameter on a basis of at least the optimization characteristics and the present static head value; and operating the at least one pump on the pump control parameter.