公开(公告)号：US20230221682A1

公开(公告)日：2023-07-13

申请号：US17927346

申请日：2021-05-21

Applicant: Grundfos Holding A/S

Inventor： Anders Overgaard ,  Brian Kongsgaard Nielsen ,  Carsten Skovmose Kallesøe

IPC: G05B13/02

CPC classification number: G05B13/0265 ,  G05B13/024

Abstract: A method for controlling operation of a fluid transport system by applying a self-learning control process. The method includes: receiving obtained values of input signals during operation of the system during a first period of time, which is controlled by a predetermined control process, automatically selecting a subset of the input signals based on the received obtained values of the input signals, receiving obtained values of at least the selected subset of input signals during a second period of time, which is controlled by applying the self-learning control process, which is configured to control operation based only on the selected subset of input signals, and wherein applying the self-learning control process includes updating the self-learning control process based on the received obtained values of the selected subset of the input signals and based on at least an approximation of a performance indicator function.

公开(公告)号：US11630469B2

公开(公告)日：2023-04-18

申请号：US16860260

申请日：2020-04-28

Applicant: GRUNDFOS HOLDING A/S

Inventor： Anders Overgaard ,  Brian Kongsgaard Nielsen ,  Carsten Skovmose Kallesøe

IPC: F24F11/70 ,  G05D7/06 ,  F24D3/10 ,  F24D19/10 ,  F24F3/048 ,  F24F110/40 ,  F24F110/10

Abstract: A control system controls a fluid distribution system that includes consumer branches arranged in parallel. Each consumer branch includes a consumer element (31) consuming fluid and/or thermal energy, a regulating device (9) receiving a control value regulating a flow of fluid and/or thermal energy through the consumer branch, and a sensor (11) providing a measured value of the consumer branch. The control system includes a saturation calculation module (21) providing a saturation value, for each operational consumer branch, indicative of the saturation degree of the associated consumer branch, and a saturation compensation module (23) receiving the saturation values and altering a reference value. The altered reference value is based on an initial reference value and the saturation values from all consumer branches. The consumer branch regulating device, of each operational consumer branch, is controllable based on the altered reference value and the measured value of the associated consumer branch.

公开(公告)号：US11085437B2

公开(公告)日：2021-08-10

申请号：US14826631

申请日：2015-08-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Brian Kongsgaard Nielsen ,  Carsten Skovmose Kallesøe

IPC: F04B49/06 ,  F04D15/00 ,  F04B49/20

Abstract: A control method for a pump assembly (10, 12) in a pneumatic or hydraulic system controls a speed (n) of the pump assembly (10, 12) in dependence on at least one variable (Dp, p, T, xp) which is detected in the system. An error signal (e) is produced from the detected variable (Dp, p, T, xp) on the basis of a sectionwise monotonic function. On the basis of the error signal, the speed (n) of the pump assembly (10, 12) is controlled.

公开(公告)号：US10690423B2

公开(公告)日：2020-06-23

申请号：US14546305

申请日：2014-11-18

Applicant: GRUNDFOS HOLDING A/S

Inventor： Carsten Skovmose Kallesøe ,  Brian Kongsgaard Nielsen

IPC: F28F27/02 ,  F24D19/10 ,  G05D23/19 ,  G05D23/13 ,  F24D5/04 ,  F24F3/08

Abstract: A control method for a heat transfer system, wherein the heat transfer system comprises a supply conduit (12), at least one load circuit (2) and a heat transfer device (6; 28) between the supply conduit and the at least one load circuit, wherein a supply flow (qS) in the supply conduit (12) is detected on the basis of a desired entry-side load temperature (Tref), of an actual entry-side load temperature (TL) which is detected in the load circuit (2) and of a load flow (qL) in the load circuit (2), as well to as a heat transfer system, in which such a control method is applied.

公开(公告)号：US10184671B2

公开(公告)日：2019-01-22

申请号：US14747370

申请日：2015-06-23

Applicant: GRUNDFOS HOLDING A/S

Inventor： Carsten Skovmose Kallesøe ,  Brian Kongsgaard Nielsen

IPC: F24F11/06 ,  F24D19/10

Abstract: A method and a heat transfer system for limiting a supply flow (qS) in a heat transfer system which includes a supply conduit (10) with a supply flow (qS) and with a supply entry temperature (TS), and at least one load circuit (2) with a load pump (20) which provides a load flow (qL) with a load entry temperature (TL) and a load exit temperature (TR). The load entry temperature (TL) is set by way of changing the supply flow (qS), wherein the supply flow (qS) is limited to a maximal flow (qS, max), taking into account at least one temperature detected in the load circuit (2).