EP1710441A2 - Procédé de contrôle d'une pompe - Google Patents

Procédé de contrôle d'une pompe Download PDF

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Publication number
EP1710441A2
EP1710441A2 EP06005255A EP06005255A EP1710441A2 EP 1710441 A2 EP1710441 A2 EP 1710441A2 EP 06005255 A EP06005255 A EP 06005255A EP 06005255 A EP06005255 A EP 06005255A EP 1710441 A2 EP1710441 A2 EP 1710441A2
Authority
EP
European Patent Office
Prior art keywords
foam
speed
air
pump
voltage
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Withdrawn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
EP06005255A
Other languages
German (de)
English (en)
Other versions
EP1710441A3 (fr
Inventor
Stefan Zeh
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.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung and Co KG
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 Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP1710441A2 publication Critical patent/EP1710441A2/fr
Publication of EP1710441A3 publication Critical patent/EP1710441A3/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Withdrawn legal-status Critical Current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
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • 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
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F04D15/0236—Lack of liquid level being detected by analysing the parameters of the electric drive, e.g. current or power consumption

Definitions

  • the invention relates to an electronic motor control for a pump with multiphase permanent magnet synchronous motor (PMSM).
  • the pump is controlled by a so-called inverter by pulse width modulation (PWM) of a DC voltage from a DC voltage intermediate circuit.
  • PWM pulse width modulation
  • the controller-internal arithmetic variables namely the estimated engine speed or the engine nominal voltage, or via power measurement or a combination of these variables, it is reliably detected whether the pump delivers liquid medium or air or foam. It describes the engine control and how the measured and calculated variables are favorably used and evaluated for foam or air detection.
  • Fig. 1 shows the essential components of the electronically controlled pump system.
  • the phases of the polyphase permanent magnet motor (3) are intermittently connected via 6 power switches with parallel freewheeling diodes (2a to 2f) to the high voltage or the low voltage side of a DC voltage source (1).
  • a current transformer (4) measures the current which flows in total from the DC voltage (1) to the switches (2a-2f).
  • a voltage transformer (5) measures the voltage of the source (1).
  • a control unit (6) receives measurement signals from at least one of the phases of the motor (3), the current transformer (4) and the voltage converter (5) and controls the 6 power switches (2a-2f).
  • a position observer (8) determines discrete-time, high-frequency estimation (13) of the current position of the engine.
  • the phase detection (7) provides the position observer (8) with information (12) which states whether and, if so, how much the rotor of the motor is ahead of or behind the estimated position (13).
  • the forward / backward information (12) is available whenever a voltage induced in the three motor windings, the so-called electromotive force (EMF), makes a zero crossing. This is the case in each phase twice per period. So with a 3phasigen engine a maximum of 6 times per period.
  • the phase detection (7) can also be based on Hall sensors, which detect the phase position of the rotor via the magnetic field.
  • the position observer (8) also supplies the time derivative of the estimated position (13), ie an estimated engine speed (14).
  • a speed controller (9) calculates an output signal (15) based on the difference between the setpoint speed (16) and the estimated speed (14).
  • the output signal (15) of the speed controller is here the desired motor voltage. But are also known configurations where the speed controller (9) specifies a desired motor current, which is supplied to a subordinate current controller. The lower-level current controller then produces the desired motor voltage as an output or directly influences the PWM unit (11).
  • a coordinate transformer (10) converts the polar coordinates - voltage (15) and estimated position (13) - to a 3-phase voltage system, ie to 3 absolute values (16).
  • the downstream PWM unit (11) determines from these values (16) a pulse pattern with which the 6 power switches (2a to 2f) are driven.
  • the motor is thus applied with a 3-phase AC system (18) having the desired motor voltage (15) and the estimated motor speed (14). Due to the self-regulation of the motor, the speed (14) estimated by the position observer (8) is also the actual speed at the same time.
  • the motor runs synchronously with the applied AC voltage system.
  • the self-regulation of the engine also has its limits. If the speed estimate (14) and the position estimate (13) of the position observer (8) deviate too much from the actual conditions in the engine, the engine tilts and suddenly stops.
  • the power supplied to the motor (17) can determine the control unit (8) by multiplying the measurement signals from the current transformer (4) and the voltage converter (5).
  • Fig. 3 shows the time course of the estimated speed (14), the target motor voltage (15) and the determined power (17). In the first half the pump pumped liquid, in the second half foam was added. Most significant are the variations in speed (14).
  • the controller output (9) can be used to determine ratios for their variation and to use for air and foam detection. Since the speed controller (9) only a filter of its input variables - ie the estimated speed (14) and the target speed (16), the original sizes (14) and (16) are more useful for the foam and air detection.
  • weighting factors for the various characteristic numbers and the resulting voti for foam and air can be defined and then the weighted sums for foam recognition can be evaluated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP06005255A 2005-03-22 2006-03-15 Procédé de contrôle d'une pompe Withdrawn EP1710441A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005013773A DE102005013773A1 (de) 2005-03-22 2005-03-22 Verfahren zur Regelung einer Pumpe

Publications (2)

Publication Number Publication Date
EP1710441A2 true EP1710441A2 (fr) 2006-10-11
EP1710441A3 EP1710441A3 (fr) 2010-05-26

Family

ID=36741323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06005255A Withdrawn EP1710441A3 (fr) 2005-03-22 2006-03-15 Procédé de contrôle d'une pompe

Country Status (3)

Country Link
US (1) US7595603B2 (fr)
EP (1) EP1710441A3 (fr)
DE (1) DE102005013773A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111456933A (zh) * 2020-05-08 2020-07-28 河海大学常州校区 一种汽车电子水泵空转状态检测方法
DE102009055203B4 (de) 2009-12-22 2022-06-15 Hanning Elektro-Werke Gmbh & Co. Kg Verfahren und Vorrichtung zum Erkennen eines Betriebszustandes einer Pumpe

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4425253B2 (ja) * 2006-08-30 2010-03-03 ダイキン工業株式会社 油圧ユニットおよび油圧ユニットにおけるモータの速度制御方法
DE102007041311A1 (de) * 2007-08-31 2009-03-05 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben eines wasserführenden Haushaltsgeräts
DE102009020473B4 (de) * 2009-05-08 2021-04-22 Diehl Ako Stiftung & Co. Kg Verfahren zur Fehlererkennung bei der Ansteuerung eines Drehfeldmotors
CN103671057B (zh) * 2013-12-06 2016-06-08 瑞安市工泰电器有限公司 无油空压机保护控制器
JP6445937B2 (ja) * 2015-07-03 2018-12-26 日立オートモティブシステムズ株式会社 電動パワーステアリング装置
CN111990942B (zh) * 2019-05-27 2024-08-16 青岛海尔洗碗机有限公司 一种洗碗机的控制方法
US12025137B2 (en) * 2020-05-06 2024-07-02 Franklin Electric Co., Inc. Water gulping detection
CN114365987A (zh) * 2021-12-20 2022-04-19 佛山市百斯特电器科技有限公司 一种基于洗涤泵的异常响应方法及洗涤设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2946049A1 (de) 1979-11-15 1981-05-27 Hoechst Ag, 6000 Frankfurt Verfahren zum regeln des durchflusses von kreiselpumpen
EP0801463A1 (fr) 1996-04-12 1997-10-15 STMicroelectronics S.A. Régulation d'un moteur sans balai
DE19617570C1 (de) 1996-05-02 1997-12-11 Hanning & Kahl Gmbh & Co Tauchpumpe
DE20118137U1 (de) 2001-11-07 2003-03-20 Diehl AKO Stiftung & Co. KG, 88239 Wangen Elektromotorisch betriebene Pumpe für eine Spülmaschine

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US3027307A (en) * 1959-08-17 1962-03-27 Standard Oil Co Reduction of distillation tower foaming
JPS58152187A (ja) * 1982-03-05 1983-09-09 Hitachi Ltd 空気調和装置
DE4418721A1 (de) * 1994-05-28 1995-11-30 Licentia Gmbh Steuerungsverfahren für Laugenumwälz-Pumpen in Haushalt-Geschirrspülmaschinen
US5448149A (en) * 1994-06-20 1995-09-05 Texas A&M University Indirect rotor position sensor for a sinusoidal synchronous reluctance machine
JP3480752B2 (ja) * 1994-12-08 2003-12-22 東芝デジタルメディアエンジニアリング株式会社 冷凍サイクル装置
MY122977A (en) * 1995-03-14 2006-05-31 Panasonic Corp Refrigerating apparatus, and refrigerator control and brushless motor starter used in same
US5847523A (en) * 1995-05-25 1998-12-08 Papst-Motoren Gmbh & Co. Kg Method of limiting current in a DC motor and DC motor system for implementing said method
JPH1047795A (ja) * 1996-08-06 1998-02-20 Matsushita Refrig Co Ltd 冷蔵庫の運転制御装置
DE19736347A1 (de) * 1997-08-21 1999-02-25 Wunnibald Kunz Einrichtung zur Dosierung der optimalen Wassermenge in einem Geschirrspüler
JP3454210B2 (ja) * 1999-11-30 2003-10-06 株式会社日立製作所 同期モータの位置センサレス制御方法
JP2004104895A (ja) * 2002-09-09 2004-04-02 Hitachi Ltd 圧縮機駆動装置及び冷凍空調装置
JP3832257B2 (ja) * 2001-02-26 2006-10-11 株式会社日立製作所 同期モータの起動制御方法と制御装置
DE10139928A1 (de) * 2001-08-14 2003-04-24 Diehl Ako Stiftung Gmbh & Co Geschirrspüler-Pumpenantrieb
JP3896472B2 (ja) * 2002-09-04 2007-03-22 株式会社日立製作所 冷凍装置
KR100702913B1 (ko) * 2003-03-17 2007-04-03 마쯔시다덴기산교 가부시키가이샤 브러시리스 ｄｃ 모터의 구동 방법 및 그 장치
US7650760B2 (en) * 2003-04-22 2010-01-26 Panasonic Corporation Motor controlling device, compressor, air conditioner and refrigerator
JP4475903B2 (ja) * 2003-09-12 2010-06-09 サンデン株式会社 モータ制御装置
JP4513536B2 (ja) * 2004-12-06 2010-07-28 株式会社豊田自動織機 インバータ装置
US7143491B2 (en) * 2004-12-14 2006-12-05 Wood Samuel T Door hinge pin removal tool
KR101041076B1 (ko) * 2004-12-17 2011-06-13 삼성전자주식회사 브러시리스 직류모터의 기동제어방법
DE102005028344A1 (de) * 2005-02-05 2006-08-17 Diehl Ako Stiftung & Co. Kg Verfahren und Schaltungsanordnung zur Regelung eines mehrphasigen bürstenlosen Elektromotors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2946049A1 (de) 1979-11-15 1981-05-27 Hoechst Ag, 6000 Frankfurt Verfahren zum regeln des durchflusses von kreiselpumpen
EP0801463A1 (fr) 1996-04-12 1997-10-15 STMicroelectronics S.A. Régulation d'un moteur sans balai
DE19617570C1 (de) 1996-05-02 1997-12-11 Hanning & Kahl Gmbh & Co Tauchpumpe
DE20118137U1 (de) 2001-11-07 2003-03-20 Diehl AKO Stiftung & Co. KG, 88239 Wangen Elektromotorisch betriebene Pumpe für eine Spülmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009055203B4 (de) 2009-12-22 2022-06-15 Hanning Elektro-Werke Gmbh & Co. Kg Verfahren und Vorrichtung zum Erkennen eines Betriebszustandes einer Pumpe
CN111456933A (zh) * 2020-05-08 2020-07-28 河海大学常州校区 一种汽车电子水泵空转状态检测方法
CN111456933B (zh) * 2020-05-08 2022-03-08 河海大学常州校区 一种汽车电子水泵空转状态检测方法

Also Published As

Publication number Publication date
US7595603B2 (en) 2009-09-29
EP1710441A3 (fr) 2010-05-26
DE102005013773A1 (de) 2006-09-28
US20060245931A1 (en) 2006-11-02

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