EP2657529A1 - Procédé et système d'identification et de commande d'une pompe centrifuge - Google Patents

Procédé et système d'identification et de commande d'une pompe centrifuge Download PDF

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Publication number
EP2657529A1
EP2657529A1 EP13160869.7A EP13160869A EP2657529A1 EP 2657529 A1 EP2657529 A1 EP 2657529A1 EP 13160869 A EP13160869 A EP 13160869A EP 2657529 A1 EP2657529 A1 EP 2657529A1
Authority
EP
European Patent Office
Prior art keywords
speed
pumping circuit
centrifugal pump
flow rate
electric motor
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.)
Withdrawn
Application number
EP13160869.7A
Other languages
German (de)
English (en)
French (fr)
Inventor
Marc Geneau
Philippe LE GOUALEC
François Malrait
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.)
Schneider Toshiba Inverter Europe SAS
Original Assignee
Schneider Toshiba Inverter Europe SAS
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 Schneider Toshiba Inverter Europe SAS filed Critical Schneider Toshiba Inverter Europe SAS
Publication of EP2657529A1 publication Critical patent/EP2657529A1/fr
Withdrawn legal-status Critical Current

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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
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • 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
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • 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
    • 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

Definitions

  • the present invention relates to a method and system for identifying and controlling a centrifugal pump.
  • a pumping circuit in which a centrifugal pump is included is controlled by a control system.
  • This control system comprises an electric motor operating the centrifugal pump and controlled by a variable speed drive.
  • the system also includes a valve or a valve to control flow in the pumping circuit.
  • the control of the centrifugal pump is carried out from pump curves. These pump curves are defined for a single speed called the nominal speed, and represent the pressure as a function of flow, the mechanical power as a function of flow.
  • the aim of the invention is to propose a method and a control and identification system making it possible, during a dedicated phase, to ensure the synchronized correlation between the mechanical data applied to the electric motor available in the drive. speed and pump circuit data collected by external sensors. This correlation will make it possible to estimate with very great precision the quantities of the pumping circuit (pressure, flow rate), without using sensors in the pumping circuit, independently of the manufacturer data, that is to say nominal pump curves. .
  • the purpose of estimating pressure and flow quantities can be either to diagnose the measuring elements or to control or monitor the pumping circuit, without pressure and flow sensors.
  • the second step, the third step and the fourth step are implemented for several speeds applied to the electric motor.
  • the third step and the fourth step are implemented for each operating point of the solenoid valve.
  • control and processing unit is included in the variable speed drive.
  • a pumping circuit comprises a centrifugal pump 1 controlled by a control system.
  • a control system comprises an electric motor 2 for operating the centrifugal pump and a speed variator 3 for controlling said electric motor.
  • variable speed drive The architecture of a variable speed drive is well known, it will not be described in this application.
  • the characterization of the centrifugal pump 1 consists in implementing an identification phase, carried out prior to the normal operation of the pump in the pumping circuit. This identification phase is performed at least once, for example before the first start of the pumping circuit.
  • the identification phase of the centrifugal pump 1 consists in reconstructing the pump curves for the nominal speed but also at other operating speeds to cover the full operating range.
  • pump curves define, for each speed of the electric motor, the pressure (Pf) of the fluid flowing in the pumping circuit as a function of the flow rate (Df) of the fluid flowing in the pumping circuit ( figure 3A ) and the motor power (Pmot) as a function of the flow rate (Df) of the fluid flowing in the pumping circuit ( figure 3B ).
  • the control system must also comprise a pressure sensor 4 for measuring the pressure (Pf) of the fluid flowing in the pumping circuit and a flow sensor 5 for measuring the flow (Df). fluid flowing in the pumping circuit.
  • a pressure sensor 4 for measuring the pressure (Pf) of the fluid flowing in the pumping circuit
  • a flow sensor 5 for measuring the flow (Df). fluid flowing in the pumping circuit.
  • control system comprises a control and processing unit 30 for centralizing the control and the control. treatment.
  • This control and processing unit 30 may for example be a programmable controller or be that which is already present in the variable speed drive 3. In the remainder of the description, it will be considered that the control and processing unit 30 is included. in the drive controller.
  • the control and processing unit 30 comprises a module for identifying the characteristics of the centrifugal pump 1, activated by the operator or activated automatically, for example during the first power-up of the system.
  • the control system of the invention is represented on the figure 1 .
  • the variable speed drive 3 is connected to the electric motor 2 and the electric motor 2 controls the centrifugal pump 1.
  • a solenoid valve 6, placed on the pumping circuit, is controlled directly by the control and processing unit 30.
  • the flow sensor 5 and the pressure sensor 4 are connected directly to the control and processing unit 30 to send their measurement data.
  • the identification phase of the centrifugal pump 1 starts.
  • the control and processing unit 30 activates control means of the variable speed drive 3 to apply a first speed to the electric motor 2.
  • the speed is for example chosen in a range of 30% at 120% of the nominal speed.
  • the control and processing unit 30 activates control means of the solenoid valve 6 for an operating point.
  • a third step (E3) for each operating point of the solenoid valve 6, the control and processing unit 30 records the values provided by the pressure sensor 4 (Pf) of the fluid flowing in the pumping circuit and by the flow sensor 5 (Df) of the fluid circulating in the pumping circuit and determines, by measurement or by estimation, the power (PMot) supplied by the variable speed drive 3. All these measurement data are sent to the control and processing unit 30, which records them in storage means (step E4). The control and processing unit 30 repeats the same operations for a new speed to be applied to the electric motor 2, this until sweeping all the speeds. From the data collected, the control and processing unit 30 activates means for determining the pump curves.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
EP13160869.7A 2012-04-26 2013-03-25 Procédé et système d'identification et de commande d'une pompe centrifuge Withdrawn EP2657529A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1253882A FR2990007B1 (fr) 2012-04-26 2012-04-26 Procede et systeme d'identification et de commande d'une pompe centrifuge

Publications (1)

Publication Number Publication Date
EP2657529A1 true EP2657529A1 (fr) 2013-10-30

Family

ID=47900973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13160869.7A Withdrawn EP2657529A1 (fr) 2012-04-26 2013-03-25 Procédé et système d'identification et de commande d'une pompe centrifuge

Country Status (6)

Country Link
US (1) US20130287596A1 (zh)
EP (1) EP2657529A1 (zh)
JP (1) JP2013227975A (zh)
CN (1) CN103375412B (zh)
BR (1) BR102013009522A2 (zh)
FR (1) FR2990007B1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2573403B1 (en) * 2011-09-20 2017-12-06 Grundfos Holding A/S Pump
CN104885024B (zh) * 2012-12-12 2017-10-13 塞阿姆斯特朗有限公司 经协调的无传感器控制系统
US9886018B2 (en) * 2014-09-12 2018-02-06 Smith & Loveless Inc. Pump control for operation on a variable pressure force main
JP6290119B2 (ja) * 2015-02-25 2018-03-07 株式会社東芝 運転効率推定システム、運転効率推定方法、運転効率推定装置及びコンピュータプログラム
US10415562B2 (en) * 2015-12-19 2019-09-17 Schlumberger Technology Corporation Automated operation of wellsite pumping equipment
DE102019212325A1 (de) * 2019-08-17 2021-02-18 Ziehl-Abegg Se Verfahren zur quantitativen Bestimmung einer aktuellen betriebszustandsabhängigen Größe eines Ventilators, insbesondere einer Druckänderung oder Druckerhöhung, und Ventilator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240380A (en) * 1991-05-21 1993-08-31 Sundstrand Corporation Variable speed control for centrifugal pumps
EP1286056A1 (en) * 2001-08-10 2003-02-26 Reliance Electric Technologies, LLC System and method for detecting and diagnosing pump cavitation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113596A (ja) * 1981-12-28 1983-07-06 Toshiba Corp ポンプの流量制御装置
US6260004B1 (en) * 1997-12-31 2001-07-10 Innovation Management Group, Inc. Method and apparatus for diagnosing a pump system
JP2006307682A (ja) * 2005-04-26 2006-11-09 Ebara Densan Ltd ポンプ装置
DE502005009320D1 (de) * 2005-07-29 2010-05-12 Grundfos Management As Verfahren zur Datenübertragung zwischen einem Pumpenaggregat und einer Steuereinrichtung sowie ein entsprechend ausgebildetes Pumpensystem
US7945411B2 (en) * 2006-03-08 2011-05-17 Itt Manufacturing Enterprises, Inc Method for determining pump flow without the use of traditional sensors
DE102006022740A1 (de) * 2006-05-12 2007-11-15 Ksb Aktiengesellschaft Einrichtung zur Messwertübertragung
US8092190B2 (en) * 2007-04-06 2012-01-10 Baker Hughes Incorporated Systems and methods for reducing pump downtime by determining rotation speed using a variable speed drive
DE102007022348A1 (de) * 2007-05-12 2008-11-13 Ksb Aktiengesellschaft Einrichtung und Verfahren zur Störungsüberwachung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240380A (en) * 1991-05-21 1993-08-31 Sundstrand Corporation Variable speed control for centrifugal pumps
EP1286056A1 (en) * 2001-08-10 2003-02-26 Reliance Electric Technologies, LLC System and method for detecting and diagnosing pump cavitation

Also Published As

Publication number Publication date
JP2013227975A (ja) 2013-11-07
BR102013009522A2 (pt) 2016-02-16
CN103375412A (zh) 2013-10-30
US20130287596A1 (en) 2013-10-31
FR2990007B1 (fr) 2014-04-18
CN103375412B (zh) 2016-08-03
FR2990007A1 (fr) 2013-11-01

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