EP4587714A1 - Pumpensteuerungssystem und verfahren zur steuerung einer pumpe mit automatischer pumpenmodellkalibrierung - Google Patents

Pumpensteuerungssystem und verfahren zur steuerung einer pumpe mit automatischer pumpenmodellkalibrierung

Info

Publication number
EP4587714A1
EP4587714A1 EP23764866.2A EP23764866A EP4587714A1 EP 4587714 A1 EP4587714 A1 EP 4587714A1 EP 23764866 A EP23764866 A EP 23764866A EP 4587714 A1 EP4587714 A1 EP 4587714A1
Authority
EP
European Patent Office
Prior art keywords
operating value
model function
pump
value model
max
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23764866.2A
Other languages
English (en)
French (fr)
Inventor
Torben Nielsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grundfos Holdings AS
Original Assignee
Grundfos Holdings AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grundfos Holdings AS filed Critical Grundfos Holdings AS
Publication of EP4587714A1 publication Critical patent/EP4587714A1/de
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0088—Testing machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/81—Modelling or simulation

Definitions

  • pump control systems and methods use the affinity laws to estimate the current operating point based on other operating val- ues, e.g. the actual power consumption P, the motor current I and/or motor speed of the pump ⁇ .
  • Using such operating values for an indirect estimation of the operating point requires a precise model of the pump characteristic, e.g. a model function in the Pq-diagram.
  • Pump manufacturers typically determine the pump characteris- tics in a laboratory and/or field tests for certain pump types and pro- vide data sets with a plurality of model parameter sets indicative of operating value model functions that describe the pump characteris- tics of a certain model type.
  • the pump char- acteristic may change dynamically over time due to wear and tear of mechanical and/or electrical components, so that an older pump be- haves differently than a brand new pump.
  • US 7,945,411 B1, DE 10 2009 050 083 B4, US 9,897,084 B1 and US 9,470,217 B1 describe control systems, wherein either the pump is forced to run at a known fix operation point for calibration, or wherein an actual flow is measured or estimated to determine the actual oper- ating point.
  • the pump control electronics within the electronics housing 11 is programmed in such a way that the pump assembly 1 comprises a new pump control system according to the present disclosure.
  • the pump control system of the pump assembly 1 comprises 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 operat- ing value model function corresponding to a pump speed. If the oper- ating value model function is very precise, the pump assembly 1 is able to run at a desired operating point without having a measured or esti- mated flow value.
  • the operating value could be the ac- tual power consumption of the pump assembly or a current drawn by the motor drive of the pump assembly 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
EP23764866.2A 2022-09-13 2023-08-31 Pumpensteuerungssystem und verfahren zur steuerung einer pumpe mit automatischer pumpenmodellkalibrierung Pending EP4587714A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA202270441 2022-09-13
PCT/EP2023/073929 WO2024056395A1 (en) 2022-09-13 2023-08-31 Pump control system and method for controlling a pump with automatic pump model calibration

Publications (1)

Publication Number Publication Date
EP4587714A1 true EP4587714A1 (de) 2025-07-23

Family

ID=87929987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23764866.2A Pending EP4587714A1 (de) 2022-09-13 2023-08-31 Pumpensteuerungssystem und verfahren zur steuerung einer pumpe mit automatischer pumpenmodellkalibrierung

Country Status (4)

Country Link
US (1) US20260085688A1 (de)
EP (1) EP4587714A1 (de)
CN (1) CN119866408A (de)
WO (1) WO2024056395A1 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160169239A1 (en) * 2013-05-21 2016-06-16 Grundfos Holding A/S Circulating pump unit and solar thermal plant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54203A (en) * 1977-06-03 1979-01-05 Hitachi Ltd Automatic chacteristic-curve correction type fluid conveyor system operation control method
US7945411B2 (en) 2006-03-08 2011-05-17 Itt Manufacturing Enterprises, Inc Method for determining pump flow without the use of traditional sensors
DE102008027039B8 (de) * 2008-06-06 2012-02-02 Aic-Regloplas Gmbh Temperiergerät mit Durchflussmessung
DE102009050083B4 (de) 2009-10-20 2016-08-18 Viessmann Werke Gmbh & Co Kg Verfahren zur Bestimmung eines Volumenstroms in einer mit einer Strömungsmaschine und mit einer Regelungseinheit versehenen, geschlossenen Strömungsanlage
CN105518305B (zh) 2013-07-25 2018-09-14 流体处理有限责任公司 用于液体循环泵送系统的具有自校准装置的无传感器自适应泵控制
US9470217B2 (en) * 2014-03-27 2016-10-18 Mohsen Taravat Method and device for measuring and controlling amount of liquid pumped
US10921765B2 (en) * 2017-12-20 2021-02-16 Siemens Aktiengesellschaft Digital twin of centrifugal pump in pumping systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160169239A1 (en) * 2013-05-21 2016-06-16 Grundfos Holding A/S Circulating pump unit and solar thermal plant

Also Published As

Publication number Publication date
CN119866408A (zh) 2025-04-22
US20260085688A1 (en) 2026-03-26
WO2024056395A1 (en) 2024-03-21

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