EP1310037A1 - Dispositif d'antiparasitage par mise a la masse d'un convertisseur matriciel - Google Patents

Dispositif d'antiparasitage par mise a la masse d'un convertisseur matriciel

Info

Publication number
EP1310037A1
EP1310037A1 EP01956421A EP01956421A EP1310037A1 EP 1310037 A1 EP1310037 A1 EP 1310037A1 EP 01956421 A EP01956421 A EP 01956421A EP 01956421 A EP01956421 A EP 01956421A EP 1310037 A1 EP1310037 A1 EP 1310037A1
Authority
EP
European Patent Office
Prior art keywords
capacitors
matrix converter
interference suppression
input filter
filter
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Withdrawn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
EP01956421A
Other languages
German (de)
English (en)
Inventor
Manfred Bruckmann
Olaf Simon
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1310037A1 publication Critical patent/EP1310037A1/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Withdrawn legal-status Critical Current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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/27—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency
    • H02M5/271—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency from a three phase input voltage
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/275—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
    • H02M5/297—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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 for conversion of frequency

Definitions

  • the invention relates to a device for basic interference suppression of a matrix converter with an input filter having capacitors.
  • a matrix converter is a self-controlled direct converter. It enables the transformation of a rigid three-phase network into a system with variable voltage and frequency.
  • the bidirectional circuit breakers By arranging the bidirectional circuit breakers in a 3x3 switch matrix, one of the three output phases of the matrix converter can be electrically connected to an input phase.
  • a phase of the matrix converter consists of an arrangement of three bidirectional circuit breakers, each of which is connected on the one hand to an input phase and on the other hand to an output phase. Such an arrangement is also referred to as a 3xl switch matrix.
  • the matrix converter does not require an intermediate circuit.
  • the advantage of the self-commutated direct converter is that, due to the topology, it can be regenerated and that sinusoidal line currents are achieved by means of a correspondingly pronounced control.
  • the bidirectional circuit breakers of the matrix converter each have two semiconductor switches connected in series. Insulated gate bipolar transistors (IGBT) are preferably used as semiconductor switches, each of which has an antiparallel diode. Such bidirectional circuit breakers are preferably used in converters for small and medium powers. By controlling these semiconductor switches of the bidirectional power switches, one current path in each case is determined by the arrangement of the semiconductor switches
  • the matrix converter In order not to burden the supply network with pulse-frequency harmonics, the matrix converter also requires an input filter, which consists of LC elements. So that the input filter can be built as small as possible, a high switching frequency of the bidirectional circuit breaker of the matrix converter is advantageous.
  • the switching frequency is typically a few kHz.
  • Proven converter in an electromagnetic environment It must be able to withstand external electromagnetic influences and in turn produce as little electromagnetic interference as possible.
  • the behavior of equipment with regard to these criteria is known as electromagnetic compatibility, or EMC for short. Every piece of equipment is therefore a source and a receiver of faults.
  • EMC electromagnetic compatibility
  • a basic distinction is made between immunity to interference and interference.
  • Immunity is the ability of an equipment to withstand external electrical or electromagnetic influences.
  • the interference behavior characterizes the electrical or electromagnetic interference emanating from the equipment.
  • the fast switching processes in the power section essentially determine the degree of interference emanating from the converter.
  • the level of the PWM clock frequency also influences the degree of interference.
  • radio interference suppression over a certain frequency range is determined as a measure of the line-related interference.
  • An effective antidote for line-borne interference is a radio interference filter.
  • a combination of radio interference suppression filter and line choke in one housing is also referred to as a line filter in frequency inverters.
  • Such a line filter can be arranged directly next to a frequency converter, so that a ' connection cable ' between the frequency converter and the line filter is extremely short. This means that the wiring effort is minimal compared to an arrangement of individual components.
  • a frequency converter By means of a line filter, a frequency converter is also referred to as a voltage intermediate circuit converter , the interference current through capacitors with high dielectric strength, also known as Y capacitors, from the line filter into the line filter and from there through the diodes of the rectifier of the frequency converter into its voltage intermediate circuit.
  • Y capacitors capacitors with high dielectric strength
  • a matrix converter has no voltage intermediate circuit, so that the interference currents are not fed back into the voltage intermediate circuit converter via Y capacitors can. These interference currents can also not be fed back into a line filter's Y capacitors and into a voltage intermediate circuit via diodes.
  • the invention is based on the object of specifying a device for basic interference suppression of a matrix converter with which asymmetrical interference currents can be specifically derived.
  • this device has interference suppression capacitors connected in star with a low dielectric strength, the star point being electrically conductively connected to ground potential by means of a capacitor with high dielectric strength. This gives a particularly inexpensive embodiment of the device for basic interference suppression of a matrix converter.
  • the capacitance value of the capacitors of the input filter can be reduced by using interference suppression capacitors.
  • the construction volume of the input filter of the matrix converter remains almost unchanged, although additional components have been added.
  • the capacitors of the input filter of the matrix converter are electrically connected in star, the neutral point of these capacitors being electrically conductively connected to ground potential by means of an interference suppression capacitor.
  • FIG. 1 shows a first embodiment of the device according to the invention for basic interference suppression of a matrix converter
  • FIG. 2 shows a second embodiment of the device according to the invention
  • FIG 3 illustrates a particularly advantageous embodiment of the device according to the invention.
  • FIG. 1 shows a first embodiment of the inventive device for basic interference suppression of a matrix converter 2.
  • This matrix converter 2 has nine bidirectional circuit breakers 4 which are arranged in a 3x3 switch matrix 6. By arranging the nine bidirectional circuit breakers 4 in a 3x3 switch matrix 6, each output phase X, Y, Z can be switched to any input phase U, V, W.
  • One phase of this matrix converter 2 has three bidirectional power switches 4, which can connect an output phase X or Y or Z to the input phases U, V, W.
  • This matrix converter phase has a 3x1 switch matrix.
  • An inductive load for example an asynchronous motor, is connected to the output phases X, Y, Z of the matrix converter 2.
  • the input phases U, V and W are linked to an input filter 10 that is connected on the input side to a network, not shown in detail.
  • This input filter 10 is designed as a single-stage LC filter and has inductors 12 and capacitors 14. These capacitors 14 are connected in a triangle here, a star connection (FIG. 3) also being possible.
  • the inductors 12 are arranged in the feed lines to the capacitors 14 so that their charging currents are smoothed. If the network not shown a has sufficient inductance for the function of the input filter 10, inductances in the input filter 10 can be dispensed with. By means of this input filter 10, pulse-frequency harmonics are kept away from the supply network. The higher the switching frequency of the bidirectional power switches 4 of the matrix converter 2, the smaller the input filter 10 can be built.
  • Interference suppression capacitors C ⁇ , C ⁇ , C ⁇ 3 for example with a high dielectric strength , switched.
  • the star point 16 of these interference suppression capacitors C ⁇ , C ⁇ , C ⁇ 3 connected in a star is connected in an electrically conductive manner to ground potential.
  • a ground connection should be chosen as close as possible to the interference source, i.e. the matrix converter 2.
  • a device for basic interference suppression of the matrix converter 2 thus arises from the input filter 10 of the matrix converter 2 by adding interference suppression capacitors C ⁇ , C ⁇ 2 , C ⁇ 3 according to the invention, because of protection against contact for persons with high dielectric strength.
  • the existing inductances 12 of the input filter 10 of the matrix converter 2 can be replaced by a current-compensated choke 18 or inductances 12 can be added. The possibility of exchange is illustrated by arrow 20.
  • the inductors 12 of the input filter 10 can also be replaced by a five-legged three-phase choke, which is not shown in this illustration because of the clarity. These different embodiments of the inductances 12 of the input filter 10 do not change anything for the asymmetrical interference currents.
  • 2 shows a second embodiment of the device according to the invention for basic interference suppression of a matrix converter 2. This second embodiment differs from the first embodiment according to FIG. 1 in that instead of the interference suppression capacitors C ⁇ , C ⁇ , C ⁇ 3 , for example with high
  • interference suppression capacitors C ⁇ , C 2 , C 3 can be used with a low dielectric strength. These interference suppression capacitors C ⁇ , C, C 3 are electrically connected in star. For reasons of protection against accidental contact, the star point 16 of the interference suppression capacitors C 1, C 2 , C 3 with low dielectric strength is connected in an electrically conductive manner by means of a capacitor C ⁇ with high dielectric strength to ground potential.
  • the inductors 12 can be designed as a current-compensated choke 18 or as a five-legged core three-phase choke.
  • the advantage of this second embodiment is that instead of three capacitors C Y ⁇ , C ⁇ , C ⁇ 3 , for example with high dielectric strength, only one capacitor C y with high dielectric strength is required. As a result, the capacitors C ⁇ , C, C 3 and C Y require much less space than the capacitors C YI , C ⁇ , C ⁇ , so that they can be integrated into the input filter 10 without a spatial change. This second embodiment is much cheaper.
  • FIG. 3 shows a third embodiment of the device for basic interference suppression of a matrix converter 2. This third embodiment differs from the ones mentioned above
  • Embodiments of Figures 1 and 2 characterized in that the capacitors 14 of the input filter 10 are electrically connected in star and that the star point 22 of these capacitors 14 connected in star is electrically connected to ground potential by means of an interference suppression capacitor C ys .
  • an interference suppression capacitor C ys With this embodiment, one can use a single interference suppression capacitor C ⁇ s with high dielectric strength Extend input filter 10 to a device for basic interference suppression of a matrix converter 2. It is thus possible to combine an input filter 10 of a matrix converter and an EMC filter with a low amount of capacitors to form a line filter for a matrix converter 2.
  • the inductors 12, if present can be exchanged for a current-compensated choke 18 or a five-legged core three-phase choke.
  • a ground connection as close as possible to the interference source of interference currents, namely the matrix converter 2, is selected as the ground connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)

Abstract

La présente invention concerne un dispositif d'antiparasitage par mise à la masse d'un convertisseur matriciel (2), comprenant un filtre d'entrée (10), qui présente des condensateurs (14). Selon cette invention, un condensateur d'antiparasitage (CY1,CY2,CY3) est pourvu pour chaque phase d'entrée (U, V, W) du convertisseur matriciel (2). Ces condensateurs d'antiparasitage sont connectés électriquement en étoile et leur point neutre (16) est connecté de manière électro-conductrice au potentiel de masse. Ces condensateurs d'antiparasitage connectés électriquement en étoile (CY1,CY2,CY3) sont connectés électriquement de manière parallèle aux condensateurs (14) du filtre d'entrée (10). On obtient ainsi, avec peu de condensateurs et grâce à l'utilisation d'un filtre d'entrée (10) d'un convertisseur matriciel (2), un dispositif d'antiparasitage par mise à la masse du convertisseur matriciel (2) qui peut, tout comme un convertisseur de fréquence, être considéré comme filtre de réseau.
EP01956421A 2000-08-16 2001-08-03 Dispositif d'antiparasitage par mise a la masse d'un convertisseur matriciel Withdrawn EP1310037A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10039957A DE10039957A1 (de) 2000-08-16 2000-08-16 Vorrichtung zur Grundentstörung eines Matrixumrichters
DE10039957 2000-08-16
PCT/DE2001/002978 WO2002015376A1 (fr) 2000-08-16 2001-08-03 Dispositif d'antiparasitage par mise a la masse d'un convertisseur matriciel

Publications (1)

Publication Number Publication Date
EP1310037A1 true EP1310037A1 (fr) 2003-05-14

Family

ID=7652571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01956421A Withdrawn EP1310037A1 (fr) 2000-08-16 2001-08-03 Dispositif d'antiparasitage par mise a la masse d'un convertisseur matriciel

Country Status (5)

Country Link
US (1) US20030179594A1 (fr)
EP (1) EP1310037A1 (fr)
CN (1) CN1437789A (fr)
DE (1) DE10039957A1 (fr)
WO (1) WO2002015376A1 (fr)

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JP4231769B2 (ja) * 2003-11-14 2009-03-04 株式会社日立産機システム フィルタ装置、及びそのフィルタ装置が接続される電力変換装置
CN100362736C (zh) * 2005-09-15 2008-01-16 上海交通大学 带电容钳位电路的组合式双向功率开关
CN100372201C (zh) * 2005-11-01 2008-02-27 清华大学 支持容错运行的矩阵式变换器故障保护方法及电路
US7906866B2 (en) * 2008-04-11 2011-03-15 Honeywell International Inc. AC/AC power converter for aircraft
EP2117020A1 (fr) * 2008-05-05 2009-11-11 ABB Oy Agencement de réacteur pour courant électrique alternatif
DE202009017938U1 (de) * 2009-06-03 2010-10-28 Pcs Power Converter Solutions Verwaltungs Ag Vorrichtung zur Prüfung von Geräten der Hochspannungstechnik
JP5329587B2 (ja) * 2011-03-07 2013-10-30 株式会社安川電機 電力変換装置
JP5377573B2 (ja) * 2011-05-31 2013-12-25 日産自動車株式会社 電力変換装置
DE102014004799B4 (de) * 2014-04-03 2022-05-19 Sew-Eurodrive Gmbh & Co Kg Elektrogerät und Verfahren zur Herstellung eines Elektrogerätes
CN110311549B (zh) * 2019-07-15 2020-08-04 华中科技大学 一种基于分相浮地的共模emi无源抑制方法及装置
CN117150199B (zh) * 2023-11-01 2024-03-08 贵州芯际探索科技有限公司 一种igbt的封装温度监测方法

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Also Published As

Publication number Publication date
US20030179594A1 (en) 2003-09-25
DE10039957A1 (de) 2002-03-07
CN1437789A (zh) 2003-08-20
WO2002015376A1 (fr) 2002-02-21

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