WO2015014362A1 - Verfahren zur bestimmung eines fehlers in einem elektronisch kommutierten elektromotor - Google Patents
Verfahren zur bestimmung eines fehlers in einem elektronisch kommutierten elektromotor Download PDFInfo
- Publication number
- WO2015014362A1 WO2015014362A1 PCT/DE2014/200370 DE2014200370W WO2015014362A1 WO 2015014362 A1 WO2015014362 A1 WO 2015014362A1 DE 2014200370 W DE2014200370 W DE 2014200370W WO 2015014362 A1 WO2015014362 A1 WO 2015014362A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- measured
- current
- phases
- phase
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
Definitions
- the invention relates to a method for determining a fault in an electronically commutated electric motor, wherein in each motor phase at least one stator coil of the electric motor is connected in parallel, wherein a motor phase is energized and the current flowing through this motor phase current is measured.
- Motor phase are connected in parallel. In the case of a fault of such a coil connected in parallel, however, a current flow continues to take place. The electric motor is still running, but with reduced performance. If this defective electric motor operated as a functional, can cause serious damage to the electric motor.
- the invention is therefore based on the object to provide a method for determining an error in an electronically commutated electric motor, in which two stator coils of the motor are connected in parallel in each motor phase, in which a defect is reliably detected in an engine phase, although the engine even further running.
- this object is achieved in that the three motor phases are energized one after the other and the current flowing during this energization in the respective motor phase current is measured, the measured currents in the three motor phases are compared and detected a defect of the electric motor, if the measured Currents differ from each other.
- the deviation of the currents can be positive or negative depending on the interconnection.
- a defect of a coil in the first motor phase is concluded.
- a defective coil in a parallel connection relatively large differences in the currents occur.
- the motor phase in a delta circuit of the three motor phases, is detected as defective, in which the current measured directly above the motor phase is lower than the current which is measured together across the other two motor phases connected in series. This is due to the fact that in a delta connection, the terminal resistance is calculated from the amounts of all three motor phases. As a result, the clamping resistance changes in all energizing cases.
- the motor phase is detected as defective, in which the measured current is higher than the current measured separately in the other two motor phases.
- the clamping resistor just corresponds to two series-connected phases, and therefore the current flowing through a defective coil phase behaves differently than the current flowing through the two remaining phases with correctly operating coils.
- the three motor phases for current measurement are subjected to the same voltage. This is particularly important because the same starting conditions for the current measurement must be present at the three motor phases of the electric motor, so that the measured currents are comparable.
- a control unit is used for current measurement, which performs the verification of the motor phases in a diagnostic mode.
- this is the same control unit which is provided for driving the electric motor.
- Control unit itself is a measuring resistor installed, which is used for current measurement at the individual motor phases.
- the proposed method represents a particularly cost-effective method for detecting defects in the electrically commutated electric motor.
- FIG. 1 shows a schematic diagram of an electro-hydraulic coupling system
- FIG 3 shows an exemplary embodiment of a star connection of the motor phases of the electric motor.
- Fig. 1 an electro-hydraulic clutch system is shown, as it is in today
- Such a coupling system has a Hydrostatak- tor 1, as it is known for example from DE 10 2010 047 801 A1.
- This hydrostatic actuator 1 comprises an actuator housing 2, in which a piston 3 is movably arranged.
- the piston 3 is driven by an electrically commutated electric motor 4, which is controlled by a control unit 5 via an output stage 6.
- the output stage 6 is arranged in the actuator housing 2.
- the hydrostatic actuator 1 Via a hydraulic line 7, the hydrostatic actuator 1 is connected to a slave cylinder 8, which moves a clutch 9.
- the adjustment of the position of the clutch 9 is due to the drive of the arranged in a donor cylinder not shown piston 3 by the electric motor 4 in the hydrostatic actuator. 1
- FIG. 2 shows by way of example a triangular connection of the motor phases U, V, W of the electric motor. Motors 4 shown.
- Each motor phase U, V, W contains two parallel connected stator coils 10, 1 1; 12, 13; 14, 15 of the electric motor 4.
- the coils 10, 1 1; 12, 13; 14, 15 are identical and have the same resistance R sp .
- a defective or normally functioning coil 10, 1 1; 12, 13; 14, 15 the resistance of the phase changes.
- a terminal resistance R is effective , i for example between terminals A and B of
- the deviation of the current I conductor, 1. flowing through the motor phase U, in which the defective coil 10 is included, is conductor, 2 ⁇
- the resistance increases by a factor of 3/2. In the other two cases by a factor of 9/8. If the three phases are energized in succession, the current when the defective coil 10 is directly between the terminals A, B, by 1/3 less than in the two cases in which the other two motor phases V, W are measured.
- a star connection corresponds to the terminal resistance Rgefel between the terminal points A, B, C currently two series-connected motor phases U, V, W. Is now in one of these motor phases U, V, W one of If both parallel coils 10, 1 1 are defective, the terminal resistance R is increased by a factor of 3/2.
- the measured current I conductor, 1 in the motor phase U thus reduces with unchanged drive voltage to 2/3 of the current leads in the normal state. If the three motor phases U, V, W are energized one after the other, the current I conductor, 1 is 50% higher during energization without a defective coil than when the defective motor phase U is energized, compared to the other two motor phases V, W.
- the resistance of the normal phase Rphase is R r ⁇ phase - I _ R r ⁇ sp-
- the terminal resistance R tot amt between terminal points B and C corresponds to
- the terminal resistance R geS amt which is between the terminals A, B and A, C, where in each case a parallel circuit is included with a defective coil 10, is measured
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112014003578.5T DE112014003578A5 (de) | 2013-08-02 | 2014-08-01 | Verfahren zur Bestimmung eines Fehlers in einem elektronisch kommutierten Elektromotor |
KR1020167004976A KR102215985B1 (ko) | 2013-08-02 | 2014-08-01 | 전자 정류식 전기 모터에서 결함 결정 방법 |
US14/909,534 US10162009B2 (en) | 2013-08-02 | 2014-08-01 | Method for determining a fault in an electronically commutated electric motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013215192.6 | 2013-08-02 | ||
DE102013215192 | 2013-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015014362A1 true WO2015014362A1 (de) | 2015-02-05 |
Family
ID=51494057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2014/200370 WO2015014362A1 (de) | 2013-08-02 | 2014-08-01 | Verfahren zur bestimmung eines fehlers in einem elektronisch kommutierten elektromotor |
Country Status (4)
Country | Link |
---|---|
US (1) | US10162009B2 (de) |
KR (1) | KR102215985B1 (de) |
DE (2) | DE102014215130A1 (de) |
WO (1) | WO2015014362A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10778135B2 (en) | 2018-10-31 | 2020-09-15 | Hamilton Sunstrand Corporation | Motor parallel winding differential current protection |
DE102019209769A1 (de) | 2019-07-03 | 2021-01-07 | Rolls-Royce Deutschland Ltd & Co Kg | Überwachung einer elektrischen Maschine hinsichtlich des Vorliegens eines Fehlerfalls |
FR3137181A1 (fr) * | 2022-06-24 | 2023-12-29 | Safran Electrical & Power | Dispositif de détection d’un défaut de court-circuit dans un enroulement d’une machine électrique |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6064172A (en) * | 1997-02-11 | 2000-05-16 | Power Superconductor Applications Corporation | Method and apparatus for detection, classification and reduction of internal electrical faults in alternating current propulsion machinery using synchronous detection scheme |
JP2011012999A (ja) * | 2009-06-30 | 2011-01-20 | Toshiba Corp | 回転電機の試験方法及び製造方法 |
WO2011009751A1 (de) * | 2009-07-24 | 2011-01-27 | Conti Temic Microelectronic Gmbh | Verfahren zur diagnose von stromsensoren einer drehfeldmaschine während deren betriebs |
JP2011083396A (ja) * | 2009-10-15 | 2011-04-28 | Hitachi Appliances Inc | ドラム式洗濯乾燥機 |
DE102010047801A1 (de) | 2009-10-29 | 2011-05-05 | Schaeffler Technologies Gmbh & Co. Kg | Hydrostataktor |
US20110187304A1 (en) * | 2010-02-02 | 2011-08-04 | Gm Global Technology Operations, Inc. | Motor phase winding fault detection method and apparatus |
DE102011083217A1 (de) | 2011-09-22 | 2013-03-28 | Schaeffler Technologies AG & Co. KG | Verfahren zur Überprüfung der Phasen eines elektrisch kommutierten Elektromotors |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5057962A (en) * | 1990-01-22 | 1991-10-15 | General Electric Company | Microprocessor-based protective relay system |
US5574346A (en) * | 1995-05-15 | 1996-11-12 | Delco Electronics Corporation | On and off state fault detection circuit for a multi-phase brushed or brushless DC motor |
DE102004028213A1 (de) * | 2004-06-09 | 2005-12-29 | Robert Bosch Gmbh | Generatorregler mit Diagnosefunktion für Halbleiterbauelemente |
US7253634B1 (en) * | 2006-03-31 | 2007-08-07 | General Electric Company | Generator protection methods and systems self-tuning to a plurality of characteristics of a machine |
US7834573B2 (en) * | 2007-07-31 | 2010-11-16 | Caterpillar Inc | Winding fault detection system |
US20100060289A1 (en) * | 2008-09-05 | 2010-03-11 | Skf Usa, Inc. | System for Electrical Apparatus Testing |
US20100091419A1 (en) * | 2008-10-15 | 2010-04-15 | Vedula Sastry V | Motor drive ground fault detection |
EP2251702B1 (de) * | 2009-05-05 | 2011-07-13 | SMA Solar Technology AG | Verdrahtungs-Prüfvorrichtung |
US8258737B2 (en) * | 2009-06-24 | 2012-09-04 | Casey John R | Electric machine with non-coaxial rotors |
DE102009055055A1 (de) * | 2009-12-21 | 2011-06-22 | Robert Bosch GmbH, 70469 | Verfahren zur Fehlererkennung bei einer durch einen Wechselrichter angesteuerten elektrischen Maschine in einem Kraftfahrzeug und Vorrichtung zur Überwachung eines Betriebs der elektrischen Maschine |
DE102011079398A1 (de) * | 2010-12-21 | 2012-06-21 | Siemens Aktiengesellschaft | Überwachung und Fehlerdiagnose einer elektrischen Maschine |
US8319466B2 (en) * | 2011-02-21 | 2012-11-27 | Rockwell Automation Technologies, Inc. | Modular line-to-ground fault identification |
JP2012189403A (ja) * | 2011-03-10 | 2012-10-04 | Hitachi Mitsubishi Hydro Corp | 回転電機 |
US8837096B2 (en) * | 2012-03-13 | 2014-09-16 | Thoratec Corporation | Fault monitor for fault tolerant implantable pump |
-
2014
- 2014-08-01 KR KR1020167004976A patent/KR102215985B1/ko active IP Right Grant
- 2014-08-01 US US14/909,534 patent/US10162009B2/en not_active Expired - Fee Related
- 2014-08-01 DE DE102014215130.9A patent/DE102014215130A1/de not_active Withdrawn
- 2014-08-01 WO PCT/DE2014/200370 patent/WO2015014362A1/de active Application Filing
- 2014-08-01 DE DE112014003578.5T patent/DE112014003578A5/de not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6064172A (en) * | 1997-02-11 | 2000-05-16 | Power Superconductor Applications Corporation | Method and apparatus for detection, classification and reduction of internal electrical faults in alternating current propulsion machinery using synchronous detection scheme |
JP2011012999A (ja) * | 2009-06-30 | 2011-01-20 | Toshiba Corp | 回転電機の試験方法及び製造方法 |
WO2011009751A1 (de) * | 2009-07-24 | 2011-01-27 | Conti Temic Microelectronic Gmbh | Verfahren zur diagnose von stromsensoren einer drehfeldmaschine während deren betriebs |
JP2011083396A (ja) * | 2009-10-15 | 2011-04-28 | Hitachi Appliances Inc | ドラム式洗濯乾燥機 |
DE102010047801A1 (de) | 2009-10-29 | 2011-05-05 | Schaeffler Technologies Gmbh & Co. Kg | Hydrostataktor |
US20110187304A1 (en) * | 2010-02-02 | 2011-08-04 | Gm Global Technology Operations, Inc. | Motor phase winding fault detection method and apparatus |
DE102011083217A1 (de) | 2011-09-22 | 2013-03-28 | Schaeffler Technologies AG & Co. KG | Verfahren zur Überprüfung der Phasen eines elektrisch kommutierten Elektromotors |
Non-Patent Citations (6)
Title |
---|
ANTONINO-DAVIU J ET AL: "Detection of combined faults in induction machines with stator parallel branches through the DWT of the startup current", MECHANICAL SYSTEMS AND SIGNAL PROCESSING, LONDON, GB, vol. 23, no. 7, 1 October 2009 (2009-10-01), pages 2336 - 2351, XP026157451, ISSN: 0888-3270, [retrieved on 20090225], DOI: 10.1016/J.YMSSP.2009.02.007 * |
APSLEY J M ET AL: "Analysis of Multi-Phase Induction Machines with Winding Faults", ELECTRIC MACHINES AND DRIVES, 2005 IEEE INTERNATIONAL CONFERENCE ON MAY 15, 2005, PISCATAWAY, NJ, USA,IEEE, 15 May 2005 (2005-05-15), pages 249 - 255, XP010854449, ISBN: 978-0-7803-8987-8 * |
CLAUDIO BRUZZESE: "Eccentricity diagnosis in 2p-Pole alternators through superimposition of four 2(p+-1)-pole virtual machines", POWER ELECTRONICS, DRIVES AND ENERGY SYSTEMS (PEDES), 2012 IEEE INTERNATIONAL CONFERENCE ON, IEEE, 16 December 2012 (2012-12-16), pages 1 - 6, XP032346476, ISBN: 978-1-4673-4506-4, DOI: 10.1109/PEDES.2012.6484419 * |
LI YONGGANG ET AL: "The new method on rotor winding inter turn short-circuit fault measure of turbine generator", ELECTRIC MACHINES AND DRIVES CONFERENCE, 2003. IEMDC'03. IEEE INTERNAT IONAL JUNE 1-4, 2003, PISCATAWAY, NJ, USA,IEEE, vol. 3, 1 June 2003 (2003-06-01), pages 1483 - 1487, XP010644367, ISBN: 978-0-7803-7817-9 * |
LIANGLIANG HAO ET AL: "Steady-State Calculation and Online Monitoring of Interturn Short Circuit of Field Windings in Synchronous Machines", IEEE TRANSACTIONS ON ENERGY CONVERSION, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 27, no. 1, 1 March 2012 (2012-03-01), pages 128 - 138, XP011418673, ISSN: 0885-8969, DOI: 10.1109/TEC.2011.2169264 * |
WISNIEWSKI J ET AL: "Control of Axial Flux Permanent Magnet Motor by the PIPCRM method at standstill and at low speed", 2008 13TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE : [EPE-PEMC 2008] ; POZNAN, POLAND, 1 - 3 SEPTEMBER 2008, IEEE, PISCATAWAY, NJ, USA, 1 September 2008 (2008-09-01), pages 2254 - 2260, XP031343906, ISBN: 978-1-4244-1741-4 * |
Also Published As
Publication number | Publication date |
---|---|
KR20160039247A (ko) | 2016-04-08 |
US20160178699A1 (en) | 2016-06-23 |
DE112014003578A5 (de) | 2016-05-04 |
DE102014215130A1 (de) | 2015-02-05 |
US10162009B2 (en) | 2018-12-25 |
KR102215985B1 (ko) | 2021-02-16 |
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