EP2548294A2 - Circuit de convertisseur de moteur pour un moteur d'entraînement électrique et dispositif d'entraînement électrique équipé d'un circuit de convertisseur de moteur de ce type - Google Patents

Circuit de convertisseur de moteur pour un moteur d'entraînement électrique et dispositif d'entraînement électrique équipé d'un circuit de convertisseur de moteur de ce type

Info

Publication number
EP2548294A2
EP2548294A2 EP11710665A EP11710665A EP2548294A2 EP 2548294 A2 EP2548294 A2 EP 2548294A2 EP 11710665 A EP11710665 A EP 11710665A EP 11710665 A EP11710665 A EP 11710665A EP 2548294 A2 EP2548294 A2 EP 2548294A2
Authority
EP
European Patent Office
Prior art keywords
motor
converter circuit
motor converter
electric drive
ceramic capacitors
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Withdrawn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
EP11710665A
Other languages
German (de)
English (en)
Inventor
Göran SCHUBERT
Manuel Graf
Markus Fenderl
Peter Bertelshofer
Edgar Jerichow
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.)
Conti Temic Microelectronic GmbH
Original Assignee
Conti Temic Microelectronic GmbH
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 Conti Temic Microelectronic GmbH filed Critical Conti Temic Microelectronic GmbH
Publication of EP2548294A2 publication Critical patent/EP2548294A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc input or output
    • H02M1/143—Arrangements for reducing ripples from dc input or output using compensating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/018—Dielectrics
    • H01G4/06—Solid dielectrics
    • H01G4/08—Inorganic dielectrics
    • H01G4/12—Ceramic dielectrics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/40—Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures

Definitions

  • the invention relates to a motor converter circuit according to the preamble of claim 1.
  • the invention further relates to an electric drive device with such a motor converter circuit.
  • Electric drive devices are used for example in the form of auxiliary electric drives both in the automation and household appliance industry as well as in rail technology, automotive engineering and aeronautics.
  • the electric drive motor is connected to a motor converter which is controlled by a converter driver.
  • the motor converter is powered by a voltage source and a DC link capacitor.
  • the DC link capacitor is designed as an electrolytic capacitor. The disadvantage is that in such a motor converter circuits, the electrolytic capacitors age too quickly and therefore the
  • the invention has for its object to provide a motor converter circuit for an electric drive motor having a longer life. This object is achieved by a motor converter circuit with the features of claim 1.
  • the DC link capacitor is part of a so-called ⁇ filter. The filter attenuation and the size of the output voltage ripples are dependent on conventional motor converter circuits.
  • a DC link capacitor with the lowest power dissipation is built up by the parallel connection of several ceramic capacitors.
  • the ceramic capacitors each have a loss resistance of 1 mO to 2 ⁇ , which means that the associated solder or splice contribute more power dissipation than the ceramic capacitors themselves.
  • 50 ceramic capacitors with a capacity of 10 ⁇ connected in parallel and has Each solder joint has an ohmic loss resistance of 25 ms, the result is a loss resistance of the intermediate circuit capacitor of 1 ⁇ m. This loss resistance is about 1/20 smaller than that of a built-up of electrolytic capacitors DC link capacitor.
  • the parallel connection of ceramic capacitors results on the one hand less heating due to the lower loss resistance and on the other hand due to the large number of solder joints better heat dissipation compared to the contacts of the capacitive winding of the electrolytic capacitors.
  • the intermediate circuit capacitor no longer needs to be operated in resonance. At the fundamental frequency thus mainly capacitive reactances are connected in parallel, whereby the thermally induced loss resistance change with the negative temperature coefficient in the background. Furthermore, the partial inductance that can be assigned to the intermediate circuit capacitor is smaller by factors than in the case of electrolytic capacitors in the case of a parallel connection of ceramic capacitors. This leads to a reduction of the quality in the resonance range of the intermediate circuit capacitor and thus to a lower voltage drop at higher frequencies, ie frequencies which are greater than the resonance frequency. This results in a broadband 7r filter higher attenuation.
  • a motor converter circuit according to one of claims 2 to 5 ensures a long life.
  • the invention is also based on the object to provide an electric drive device which has a longer life.
  • FIG. 1 shows a schematic diagram of an electric drive device with a motor converter according to the invention.
  • An electric drive device 1 has a voltage source 2, which drives an electric drive motor 4 via a motor converter circuit 3.
  • the motor converter circuit 3 has two terminals 5, 6, which are connected to the poles 7, 8 of the voltage source 2 and the DC voltage source.
  • the first terminal 5 is referred to as Kl-30 terminal and the second terminal 6 so Kl-31 terminal.
  • the terminal 6 represents the ground terminal of the motor converter circuit 3.
  • the pole 8 of the voltage source 2 is connected to a ground conductor 9, which is for example the chassis of a motor vehicle or the engine block of an internal combustion engine.
  • the motor converter circuit 3 has a motor converter 10, which is controlled by means of a converter driver 11.
  • the motor converter 10 or the DC / AC converter is designed as a B6 bridge and has six power switches 12.
  • an x-filter 13 is inserted in the motor converter circuit 3 in the direction of the voltage source 2.
  • Filter 13 has on the input side a filter capacitance or a filter capacitor 14, which is connected between the terminals 5 and 6. Parallel to the filter capacitor 14, a series circuit of an inductance or corresponding coil 15 and a DC link capacitor or a DC link capacitor 16 is connected. The converter driver 11 and the motor converter 10 are connected between a connection line 17 extending from the coil 15 to the intermediate circuit capacitor 16 and a return conductor 18. On the output side, the
  • the drive motor 4 is designed as a brushless DC motor (BLDC motor).
  • the motor housing 22 of the drive motor 4 is connected via a connecting conductor 23 to the ground conductor 9.
  • the intermediate circuit capacitor 16 is formed of a plurality of parallel connected ceramic capacitors 24 (Kerko). By connecting in parallel, for example, 50 ceramic capacitors 24 with a capacity of 10, an intermediate capacitor or
  • Block capacitor 16 constructed with comparatively low power dissipation.
  • the individual ceramic capacitors 24 have a loss resistance in the range of 1 ⁇ to 2 mi2, which means that the soldering or splicing 25 contribute more losses to the power dissipation than the ceramic capacitors 24 themselves. With a loss resistance of about 25 mQ Each solder joint 25 results in a loss resistance of the intermediate circuit capacitor 16 of approximately 1 m, which is approximately 1/20 of the loss resistance of a conventional intermediate circuit capacitor constructed from electrolytic capacitors. Due to the low loss resistance of the ceramic capacitors 24 results in a lower power loss and accordingly a lower heating, which is better dissipated due to the large number of solder joints 25. Although the ceramic capacitors 24 have a negative temperature coefficient, these unlike electrolytic capacitors thus do not result in an impermissible heating and a resulting rapid aging.
  • the individual ceramic capacitors 24 have a loss resistance in the range of 1 ⁇ to 2 mi2, which means that the soldering or splicing 25 contribute more losses to the
  • Motor converter circuit 3 accordingly has a comparatively longer service life.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Inverter Devices (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

L'invention concerne un circuit de convertisseur de moteur (3) destiné à un dispositif d'entraînement électrique (1) et comportant un condensateur de circuit intermédiaire (16). Le condensateur de circuit intermédiaire (16) est composé de plusieurs condensateurs céramiques (24) couplés en parallèle. Les condensateurs céramiques (24) présentent une résistance équivalente réduite et permettent une meilleure évacuation de la chaleur, d'où une durée de vie comparativement plus longue du circuit de convertisseur de moteur (3).
EP11710665A 2010-03-19 2011-01-19 Circuit de convertisseur de moteur pour un moteur d'entraînement électrique et dispositif d'entraînement électrique équipé d'un circuit de convertisseur de moteur de ce type Withdrawn EP2548294A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010012210 2010-03-19
PCT/DE2011/000052 WO2011113403A2 (fr) 2010-03-19 2011-01-19 Circuit de convertisseur de moteur pour un moteur d'entraînement électrique et dispositif d'entraînement électrique équipé d'un circuit de convertisseur de moteur de ce type

Publications (1)

Publication Number Publication Date
EP2548294A2 true EP2548294A2 (fr) 2013-01-23

Family

ID=44541516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11710665A Withdrawn EP2548294A2 (fr) 2010-03-19 2011-01-19 Circuit de convertisseur de moteur pour un moteur d'entraînement électrique et dispositif d'entraînement électrique équipé d'un circuit de convertisseur de moteur de ce type

Country Status (5)

Country Link
US (1) US20130009581A1 (fr)
EP (1) EP2548294A2 (fr)
JP (1) JP2013523075A (fr)
DE (1) DE112011100953A5 (fr)
WO (1) WO2011113403A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5808748B2 (ja) 2009-11-12 2015-11-10 コンティ テミック マイクロエレクトロニック ゲゼルシャフト ミットベシュレンクテル ハフツングＣｏｎｔｉ Ｔｅｍｉｃ ｍｉｃｒｏｅｌｅｃｔｒｏｎｉｃ ＧｍｂＨ 電気駆動装置用制御回路装置及びこのような制御回路装置を持つ電気駆動装置
EP2608378A1 (fr) * 2011-12-19 2013-06-26 Siemens Aktiengesellschaft Convertisseur de puissance
US10390172B2 (en) * 2016-03-28 2019-08-20 Intel IP Corporation Localization in machine-to-machine systems
AT521100A1 (de) * 2018-04-13 2019-10-15 Ceracap Engel Kg Wechselrichter mit Zwischenkreis

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419915A (en) * 1987-07-13 1989-01-24 Shinko Electric Co Ltd Inverter overcurrent detection method
EP0508336A1 (fr) * 1991-04-09 1992-10-14 ABBPATENT GmbH Arrangement de condensateurs

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038587A (en) * 1975-08-21 1977-07-26 Sprague Electric Company Ceramic disc capacitor and method of making the same
DE3032819A1 (de) * 1979-09-04 1981-03-19 North American Philips Corp., New York, N.Y. Kondensator mit bandleitungsanschluessen
JP3501685B2 (ja) * 1999-06-04 2004-03-02 三菱電機株式会社 電力変換装置
DE10161632A1 (de) * 2001-12-14 2003-07-10 Siemens Ag Erzeugungsverfahren für eine Wechselspannung mit einer variablen Spannungshöhe und einem Vorzeichenverlauf sowie hiermit korrespondierender Zwischenkreisumrichter
DE10232716A1 (de) * 2002-07-18 2004-04-22 Robert Bosch Gmbh Lüfteransteuerung mit verbesserter elektromagnetischer Verträglichkeit
JP4802849B2 (ja) * 2006-05-09 2011-10-26 トヨタ自動車株式会社 モータ駆動装置
JP5098522B2 (ja) * 2007-08-30 2012-12-12 株式会社村田製作所 インバータ装置の設計方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419915A (en) * 1987-07-13 1989-01-24 Shinko Electric Co Ltd Inverter overcurrent detection method
EP0508336A1 (fr) * 1991-04-09 1992-10-14 ABBPATENT GmbH Arrangement de condensateurs

Also Published As

Publication number Publication date
DE112011100953A5 (de) 2013-01-24
JP2013523075A (ja) 2013-06-13
WO2011113403A3 (fr) 2012-07-26
US20130009581A1 (en) 2013-01-10
WO2011113403A2 (fr) 2011-09-22

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