公开(公告)号：US20180148909A1

公开(公告)日：2018-05-31

申请号：US15820964

申请日：2017-11-22

Applicant: GRUNDFOS HOLDING A/S

Inventor： Carsten KALLESØE ,  Abdul-Sattar HASSAN

IPC: E03B5/00 ,  E03B7/02 ,  E03B7/07 ,  E03B11/10 ,  E03B11/12 ,  G05B15/02 ,  G05D7/06

CPC classification number: E03B5/00 ,  E03B7/02 ,  E03B7/075 ,  E03B11/10 ,  E03B11/12 ,  F04D15/0066 ,  G05B15/02 ,  G05D7/0676 ,  G06F17/12

Abstract: A method of controlling a water reservoir supply pump arrangement determines a set value p, q, v, n of the pump arrangement based on an offset value pref, qref, nref, vref, G0 reduced by a component which is a function of a difference between an actual water level h and a predetermined water level href in a water reservoir. The difference is weighted by a proportional gain factor G. Further, a water reservoir supply pump arrangement is provided including at least one water pump and a control device for controlling the at least one pump.