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WO2018028778A1 - Multilevel converter - Google Patents

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Publication number
WO2018028778A1
WO2018028778A1 PCT/EP2016/069061 EP2016069061W WO2018028778A1 WO 2018028778 A1 WO2018028778 A1 WO 2018028778A1 EP 2016069061 W EP2016069061 W EP 2016069061W WO 2018028778 A1 WO2018028778 A1 WO 2018028778A1
Authority
WO
WIPO (PCT)
Prior art keywords
negative
modules
case
terminal
capacitor
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.)
Ceased
Application number
PCT/EP2016/069061
Other languages
German (de)
French (fr)
Inventor
Daniel BÖHME
Thomas KÜBEL
Steffen PIERSTORF
Daniel Schmitt
Frank Schremmer
Torsten Stoltze
Marcus Wahle
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Priority to PCT/EP2016/069061 priority Critical patent/WO2018028778A1/en
Publication of WO2018028778A1 publication Critical patent/WO2018028778A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • 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
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage

Definitions

  • the invention relates to a multistage power converter with a plurality of modules connected in series in accordance with the preamble of claim 1.
  • Multi-stage power converters in which a plurality of modules are electrically connected in series are known.
  • the modules are designed, for example, as half-bridge modules with a negative and a positive connection.
  • Each module has a program executed in sandwich construction valve housing having a ring shaped frame ⁇ whose ring opening is on both sides covered by wells JE a cooling plate and explosions ⁇ sealed to the outside.
  • the ring opening forms an inner space in which two electrical valves, for example in the form of an insulated gate bipolar transistor (IGBT), are fastened to a respective one of the two cooling plates.
  • IGBT insulated gate bipolar transistor
  • the capacitor has a positive and a negative terminal pole (capacitor terminal) and the negative terminal pole is connected via a copper rail to the negative terminal verbun ⁇ , wherein the compounds are produced by screw connections, which have a relatively large contact resistance.
  • the copper rail is located on the cooling plate for cooling and is screwed to this.
  • the object of the invention is to reduce the contact resistance he ⁇ considerably and thus improve the electrical connection between the capacitor and the negative terminal without much effort.
  • the object is solved by the features of claim 1; the dependent claims represent advantageous embodiments.
  • the solution provides that the negative poles and the negative connections of all modules are each made via a cooling plate.
  • the assembly is simplified when the negative poles and the negative terminals of all modules are transverse to the direction of arrangement on the same side and the electrical Ver ⁇ binding takes place in each case via the lying on this side cooling plate.
  • a compact construction is obtained when the cooling plate through which the electrical Verbin ⁇ -making takes place, is arranged on the same side, and the cooling plates of the two modules are arranged parallel to each other in two directly adjacent and electrically connected in series modules.
  • Fig. 1 shows an electrical circuit of two electrically in
  • Fig. 2 shows the arrangement of the two to the circuit of FIG.
  • FIG. 3 shows the arrangement of the two modules of FIG. 2 from a different viewing direction and
  • FIG. 4 shows the arrangement of the two to the circuit according to FIG.
  • Fig. 1 shows an electric circuit of two electrically connected in series half-bridge modules 1 of a multi-stage ⁇ power converter, which is gebil- det of a plurality of such modules 1.
  • Each module 1 has two electrical valves here in the form of insulated gate bipolar transistors IGBT, which together form a half-bridge.
  • a capacitor C is connected as energy storage, which has a negative terminal pole (pole C-) and a positive terminal pole (pole C +).
  • each module 1 (each half-bridge) has a positive terminal AC + and a negative terminal AC-.
  • the series connection of the modules 1 takes place in that the positive terminal AC + of one module 1 is electrically connected to the negative terminal AC- of the other module 1 by two directly adjacent modules 1.
  • Each module 1 has a valve housing 2 which is connected at both ends ⁇ tig covered by two cooling plates 4; 5.
  • the two electrical valves IGBT are arranged in the form of bipolar transistors with insulated gate electrode, which rest for cooling in each case on one of the two cooling plates 4, 5.
  • Connecting rails BAC + and BAC and sliding connection ⁇ + nen BC, BC are led out on opposite sides of the valve body. 2
  • the connecting rails BC + BC- are ver ⁇ connected to the two poles C and C + C of the capacitor.
  • the negative terminal AC- is connected at each module 1 with the ne ⁇ negative pole C- of the associated capacitor C; the connection takes place respectively via one of the two cooling plates 4, 5, here via the cooling plate 4.
  • FIG. 2 shows the arrangement of the two belonging to the circuit of FIG. 1 electrically connected in series modules 1, which are arranged side by side in an arrangement direction AR side.
  • the modules 1 have transversely to the arrangement direction AR, so seen in the transverse direction QR, a connection side AS with the terminals AC and AC + and this opposite a Kon ⁇ capacitor side CS with the capacitor C and its two Po ⁇ len C- and C + on.
  • the valve housing 2 is arranged between the connection side AS and the condenser side CS and designed in sandwich construction. It consists of an annular frame 3, the ⁇ sen ring opening is covered by the two cooling plates 4, 5, which close the ring opening to the outside explosion-proof.
  • the two cooling plates 4, 5 are arranged transversely to the arrangement direction AR parallel to each other. In the interior of the both sides covered and explosion-proof sealed ring opening outside the two electric valves IGBT are arranged.
  • the connection rails BAC + and BAC- and, towards the condenser side CS are led out of the valve housing 2.
  • the negative pole C and the negative terminals AC- all modules are transverse to the arrangement direction AR seen on the same side and the electrical connection is made in each case via the cooling plate 4 located on this side.
  • connection side AS On the connection side AS are here side by side lying a negative terminal AC and a po ⁇ sitiver connection AC + per module 1 and the negative and posi ⁇ tive terminals AC, AC + modules 1 change to Anord ⁇ voltage direction each other.
  • the positive terminal AC + of the one (of the left-hand side in FIG. 2) module 1 is in each case connected to the negative terminal AC- of the other (The right in Fig. 2 arranged) module 1 is electrically connected by means of a connecting rail BV, which are screwed tightly to the cooling plate 4 by means of screws 6.
  • the cooling plate 4 extends in each case beyond the outer contour of the valve housing 2 and has a projection on both sides, the connection side AS and the opposite capacitor side CS, which correspondingly increases the length of the cooling plate 4 and facilitates assembly , From a different viewing direction with respect to FIG. 2, the arrangement in FIG. 3 is shown.
  • Fig. 4 shows the arrangement of the two electrically connected in series modules 1 of Fig. 2 seen obliquely from behind.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

The invention relates to a multilevel converter comprising a multiplicity of modules (1) electrically connected in series, which modules a) have transversely with respect to the arrangement direction (AR) a terminal side (AS) and a capacitor side (CS) opposite the latter, b) have on the terminal side (AS) in each case a negative terminal (AC-) and a positive terminal (AC+), wherein negative and positive terminals (AC-, AC+) alternate and the positive terminal (AC+) of one module (1) is respectively connected to the negative terminal (AC-) of the module (1) next to that, c) have on the capacitor side (CS) in each case a capacitor (C) having a negative pole (C-), d) have in each case a valve housing (2) closed by cooling plates (4, 5) arranged parallel to one another, and e) have in each case an electrical connection between the negative terminal (AC-) and the negative pole (C-). In order to improve and simplify the electrical connection, it is proposed that the negative poles (C-) and the negative terminals (AC-) of all the modules (1) are implemented in each case via a cooling plate (4).

Description

Beschreibung description

Mehrstufenstromrichter Die Erfindung betrifft einen Mehrstufenstromrichter mit mehreren elektrisch in Reihe geschalteten Modulen gemäß dem Oberbegriff des Anspruchs 1. The invention relates to a multistage power converter with a plurality of modules connected in series in accordance with the preamble of claim 1.

Mehrstufenstromrichter, bei welchen eine Vielzahl von Modulen elektrisch in Reihe geschaltet ist, sind bekannt. Die Module sind z.B. als Halbbrückenmodule mit einem negativen und einem positiven Anschluss ausgebildet. Jedes Modul weist ein in Sandwichbauweise ausgeführtes Ventilgehäuse mit einem ring¬ förmigen Rahmen auf, dessen Ringöffnung beidseitig durch je- weils eine Kühlplatte abgedeckt und nach außen explosions¬ dicht verschlossen ist. Die Ringöffnung bildet einen Innenraum, in dem zwei elektrische Ventile z.B. in Form eines Bipolartransistoren mit isolierter Gateelektrode (IGBT) an jeweils einer der beiden Kühlplatten anliegend befestigt sind. Über nach außen geführte Anschlussschienen sind dieMulti-stage power converters in which a plurality of modules are electrically connected in series are known. The modules are designed, for example, as half-bridge modules with a negative and a positive connection. Each module has a program executed in sandwich construction valve housing having a ring shaped frame ¬ whose ring opening is on both sides covered by weils JE a cooling plate and explosions ¬ sealed to the outside. The ring opening forms an inner space in which two electrical valves, for example in the form of an insulated gate bipolar transistor (IGBT), are fastened to a respective one of the two cooling plates. About outward led connection rails are the

Ventile auf einer Seite, der Kondensator-Seite, an einem Kon¬ densator und auf der gegenüberliegenden Seite, der Anschluss- Seite, am negativen Anschluss angeschlossen. Der Kondensator verfügt über einen positiven und einen negativen Anschlusspol (Kondensator-Anschluss ) und der negative Anschlusspol ist über eine Kupferschiene mit dem negativen Anschluss verbun¬ den, wobei die Verbindungen durch Schraubverbindungen hergestellt werden auch, die einen relativ großen Übergangswiderstand aufweisen. Die Kupferschiene liegt zur Kühlung an der Kühlplatte an und ist an dieser angeschraubt. Valves on one side, the condenser side, on a Kon ¬ capacitor and on the opposite side, the connection side, connected to the negative terminal. The capacitor has a positive and a negative terminal pole (capacitor terminal) and the negative terminal pole is connected via a copper rail to the negative terminal verbun ¬ , wherein the compounds are produced by screw connections, which have a relatively large contact resistance. The copper rail is located on the cooling plate for cooling and is screwed to this.

Die Aufgabe der Erfindung ist es, den Übergangswiderstand er¬ heblich zu verringern und damit die elektrische Verbindung zwischen dem Kondensator und dem negativen Anschluss ohne größeren Aufwand zu verbessern. Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst; die Unteransprüche stellen vorteilhafte Ausgestaltungen dar. The object of the invention is to reduce the contact resistance he ¬ considerably and thus improve the electrical connection between the capacitor and the negative terminal without much effort. The object is solved by the features of claim 1; the dependent claims represent advantageous embodiments.

Die Lösung sieht vor, dass die negativen Pole und die negati- ven Anschlüsse aller Module jeweils über eine Kühlplatte er- folgt . The solution provides that the negative poles and the negative connections of all modules are each made via a cooling plate.

Die Montage vereinfacht sich, wenn die negativen Pole und die negativen Anschlüsse aller Module quer zur Anordnungsrichtung gesehen auf derselben Seite liegen und die elektrische Ver¬ bindung jeweils über die auf dieser Seite liegende Kühlplatte erfolgt . The assembly is simplified when the negative poles and the negative terminals of all modules are transverse to the direction of arrangement on the same side and the electrical Ver ¬ binding takes place in each case via the lying on this side cooling plate.

Eine kompakte Bauform erzielt man, wenn bei zwei unmittelbar nebeneinander liegenden und elektrisch in Reihe geschalteten Modulen die Kühlplatte, über welche die elektrische Verbin¬ dung erfolgt, jeweils auf derselben Seite angeordnet ist, und die Kühlplatten der beiden Module parallel zueinander angeordnet sind. A compact construction is obtained when the cooling plate through which the electrical Verbin ¬-making takes place, is arranged on the same side, and the cooling plates of the two modules are arranged parallel to each other in two directly adjacent and electrically connected in series modules.

Die Erfindung wird nachfolgend anhand eines Ausführungsbei¬ spiels näher beschrieben. Es zeigen: The invention will be described in more detail with reference to an Ausführungsbei ¬ game. Show it:

Fig. 1 eine elektrische Schaltung zweier elektrisch in Fig. 1 shows an electrical circuit of two electrically in

Reihe geschalteter Halbbrücken-Module eines Mehr¬ stufenstromrichters, Series-connected half-bridge modules of a more gradual ¬ current judicature,

Fig. 2 die Anordnung der beiden zur Schaltung gemäß Fig. Fig. 2 shows the arrangement of the two to the circuit of FIG.

1 gehörenden elektrisch in Reihe geschalteten Mo- dule  1 electrically connected in series modules

Fig. 3 die Anordnung der beiden Module von Fig. 2 aus einer anderen Blickrichtung und Fig. 4 die Anordnung der beiden zur Schaltung gemäß Fig. 3 shows the arrangement of the two modules of FIG. 2 from a different viewing direction and FIG. 4 shows the arrangement of the two to the circuit according to FIG.

1 gehörenden elektrisch in Reihe geschalteten Module schräg von hinten gesehen. Fig. 1 zeigt eine elektrische Schaltung zweier elektrisch in Reihe geschalteter Halbbrücken-Module 1 eines Mehrstufen¬ stromrichters, der aus einer Vielzahl solcher Module 1 gebil- det ist. 1 belonging electrically connected in series modules seen obliquely from behind. Fig. 1 shows an electric circuit of two electrically connected in series half-bridge modules 1 of a multi-stage ¬ power converter, which is gebil- det of a plurality of such modules 1.

Jedes Modul 1 verfügt über zwei elektrische Ventile hier in Form von Bipolartransistoren mit isolierter Gateelektrode IGBT, die zusammen eine Halbbrücke bilden. An die Halbbrücke ist ein Kondensator C als Energiespeicher angeschlossen, der einen negativen Anschlusspol (Pol C-) und einen positiven Anschlusspol (Pol C+) aufweist. Einspeiseseitig ist bei jedem Modul 1 (jeder Halbbrücke) ein positiver Anschluss AC+ und ein negativer Anschluss AC- vorhanden. Die Reihenschaltung der Module 1 erfolgt, indem von zwei unmittelbar benachbarten Modulen 1 der positive Anschluss AC+ des einen Moduls 1 mit dem negativen Anschluss AC- des anderen Moduls 1 elektrisch verbunden ist. Jedes Modul 1 verfügt über ein Ventilgehäuse 2, das beidsei¬ tig durch zwei Kühlplatten 4, 5 abgedeckt ist. Im Ventilge¬ häuse 2 sind die beiden elektrischen Ventile IGBT in Form von Bipolartransistoren mit isolierter Gateelektrode angeordnet, die zur Kühlung jeweils an einer der beiden Kühlplatten 4, 5 anliegen. Anschlussschienen BAC+ und BAC- und Anschlussschie¬ nen BC+, BC- sind auf gegenüberliegenden Seiten aus dem Ventilgehäuse 2 herausgeführt. Die Anschlussschienen BC+, BC- sind mit den beiden Polen C- und C+ des Kondensators C ver¬ bunden . Each module 1 has two electrical valves here in the form of insulated gate bipolar transistors IGBT, which together form a half-bridge. To the half-bridge, a capacitor C is connected as energy storage, which has a negative terminal pole (pole C-) and a positive terminal pole (pole C +). On the supply side, each module 1 (each half-bridge) has a positive terminal AC + and a negative terminal AC-. The series connection of the modules 1 takes place in that the positive terminal AC + of one module 1 is electrically connected to the negative terminal AC- of the other module 1 by two directly adjacent modules 1. Each module 1 has a valve housing 2 which is connected at both ends ¬ tig covered by two cooling plates 4; 5. In the Ventilge ¬ housing 2, the two electrical valves IGBT are arranged in the form of bipolar transistors with insulated gate electrode, which rest for cooling in each case on one of the two cooling plates 4, 5. Connecting rails BAC + and BAC and sliding connection ¬ + nen BC, BC are led out on opposite sides of the valve body. 2 The connecting rails BC + BC- are ver ¬ connected to the two poles C and C + C of the capacitor.

Der negative Anschluss AC- ist bei jedem Modul 1 mit dem ne¬ gativen Pol C- des zugehörigen Kondensators C verbunden; die Verbindung erfolgt jeweils über eine der beiden Kühlplatten 4, 5, hier über die Kühlplatte 4. The negative terminal AC- is connected at each module 1 with the ne ¬ negative pole C- of the associated capacitor C; the connection takes place respectively via one of the two cooling plates 4, 5, here via the cooling plate 4.

Fig. 2 zeigt die Anordnung der beiden zur Schaltung gemäß Fig. 1 gehörenden elektrisch in Reihe geschalteten Module 1, die in einer Anordnungsrichtung AR seitlich nebeneinander angeordnet sind . 2 shows the arrangement of the two belonging to the circuit of FIG. 1 electrically connected in series modules 1, which are arranged side by side in an arrangement direction AR side.

Die Module 1 weisen quer zur Anordnungsrichtung AR, also in Querrichtung QR gesehen, eine Anschluss-Seite AS mit den Anschlüssen AC- und AC+ und dieser gegenüberliegend eine Kon¬ densator-Seite CS mit dem Kondensator C und seinen beiden Po¬ len C- und C+ auf. Das Ventilgehäuse 2 ist zwischen der Anschluss-Seite AS und der Kondensator-Seite CS angeordnet und in Sandwichbauweise ausgeführt. Es besteht aus einem ringförmigen Rahmen 3, des¬ sen Ringöffnung durch die beiden Kühlplatten 4, 5 abgedeckt ist, welche die Ringöffnung nach außen explosionsdicht ver- schließen. Die beiden Kühlplatten 4, 5 sind quer zur Anordnungsrichtung AR parallel zueinander angeordnet. Im Innenraum der beidseitig abgedeckten und nach außen explosionsdicht verschlossenen Ringöffnung sind die beiden elektrischen Ventile IGBT angeordnet. Zur Anschluss-Seite AS hin sind die An- Schlussschienen BAC+ und BAC- und zur Kondensator-Seite CS hin die Anschlussschienen BC+, BC- aus dem Ventilgehäuse 2 herausgeführt . The modules 1 have transversely to the arrangement direction AR, so seen in the transverse direction QR, a connection side AS with the terminals AC and AC + and this opposite a Kon ¬ capacitor side CS with the capacitor C and its two Po ¬ len C- and C + on. The valve housing 2 is arranged between the connection side AS and the condenser side CS and designed in sandwich construction. It consists of an annular frame 3, the ¬ sen ring opening is covered by the two cooling plates 4, 5, which close the ring opening to the outside explosion-proof. The two cooling plates 4, 5 are arranged transversely to the arrangement direction AR parallel to each other. In the interior of the both sides covered and explosion-proof sealed ring opening outside the two electric valves IGBT are arranged. Towards the connection side AS, the connection rails BAC + and BAC- and, towards the condenser side CS, the connection rails BC +, BC- are led out of the valve housing 2.

Die negativen Pole C- und die negativen Anschlüsse AC- aller Module liegen quer zur Anordnungsrichtung AR gesehen auf derselben Seite und die elektrische Verbindung erfolgt jeweils über die auf dieser Seite liegende Kühlplatte 4. The negative pole C and the negative terminals AC- all modules are transverse to the arrangement direction AR seen on the same side and the electrical connection is made in each case via the cooling plate 4 located on this side.

Auf der Anschluss-Seite AS befinden sich hier seitlich nebeneinanderliegend ein negativer Anschluss AC- und ein po¬ sitiver Anschluss AC+ je Modul 1 und die negativen und posi¬ tiven Anschlüsse AC-, AC+ der Module 1 wechseln in Anord¬ nungsrichtung einander ab. Bei zwei unmittelbar benachbarten Modulen 1 ist der positive Anschluss AC+ des einen (des in Fig. 2 links angeordneten) Moduls 1 jeweils mit dem negativen Anschluss AC- des anderen (des in Fig. 2 rechts angeordneten) Moduls 1 mittels einer Verbindungsschiene BV elektrisch verbunden, die an der Kühlplatte 4 mittels Schrauben 6 fest angeschraubt sind. Die Kühlplatte 4 erstreckt sich jeweils über die Außenkontur des Ventilgehäuses 2 hinaus und weist auf beiden Seiten, der An- schluss-Seite AS und der gegenüberliegenden Kondensator-Seite CS jeweils einen Überstand auf, der die Länge der Kühlplatte 4 entsprechend vergrößert und die Montage erleichtert. Aus einer anderen Blickrichtung gegenüber Fig. 2 ist die Anordnung in Fig. 3 gezeigt. On the connection side AS are here side by side lying a negative terminal AC and a po ¬ sitiver connection AC + per module 1 and the negative and posi ¬ tive terminals AC, AC + modules 1 change to Anord ¬ voltage direction each other. In the case of two directly adjacent modules 1, the positive terminal AC + of the one (of the left-hand side in FIG. 2) module 1 is in each case connected to the negative terminal AC- of the other (The right in Fig. 2 arranged) module 1 is electrically connected by means of a connecting rail BV, which are screwed tightly to the cooling plate 4 by means of screws 6. The cooling plate 4 extends in each case beyond the outer contour of the valve housing 2 and has a projection on both sides, the connection side AS and the opposite capacitor side CS, which correspondingly increases the length of the cooling plate 4 and facilitates assembly , From a different viewing direction with respect to FIG. 2, the arrangement in FIG. 3 is shown.

In Fig. 3 ist die Anordnung der beiden elektrisch in Reihe geschalteten Module 1 von Fig. 3 aus einer etwas anderen Blickrichtung zu sehen. In Fig. 3, the arrangement of the two electrically connected in series modules 1 of Fig. 3 can be seen from a slightly different direction.

Fig. 4 zeigt die Anordnung der beiden elektrisch in Reihe geschalteten Module 1 von Fig. 2 schräg von hinten gesehen. Man erkennt einen Verbindungswinkel VW, mit dessen Hilfe der Pol C- des Kondensators C an der Kühlplatte 4 befestigt ist. Fig. 4 shows the arrangement of the two electrically connected in series modules 1 of Fig. 2 seen obliquely from behind. One recognizes a connecting angle VW, by means of which the pole C of the capacitor C is fastened to the cooling plate 4.

Claims

Patentansprüche claims 1. Mehrstufenstromrichter 1. Multi-stage power converter mit einer Vielzahl von in einer Anordnungsrichtung (AR) seitlich nebeneinander angeordneten und elektrisch in Reihe geschalteten Modulen (1) in Halbbrückenschaltung, die with a plurality of side by side arranged in an array direction (AR) and electrically connected in series modules (1) in a half-bridge circuit, the a) quer zur Anordnungsrichtung (AR) eine Anschluss-Seite (AS) und dieser gegenüberliegend eine Kondensator-Seite (CS) auf- weisen, a) have a connection side (AS) transverse to the arrangement direction (AR) and a capacitor side (CS) opposite this, b) auf der Anschluss-Seite (AS) seitlich nebeneinander je¬ weils einen negativen Anschluss (AC-) und einen positiven Anschluss (AC+) aufweisen, wobei sich negative und positive An¬ schlüsse (AC-, AC+) der Module (1) in Anordnungsrichtung (AR) abwechseln und jeweils der positive Anschluss (AC+) des einen Moduls (1) mit dem negativen Anschluss (AC-) des unmittelbar daneben angeordneten Moduls (1) verbunden sind, b) on the connection side (AS) side by side je ¬ Weils have a negative terminal (AC) and a positive terminal (AC +), with negative and positive An ¬ connections (AC, AC +) of the modules (1) alternating in the arrangement direction (AR) and in each case the positive terminal (AC +) of the one module (1) are connected to the negative terminal (AC-) of the module (1) arranged directly next to it, c) auf der Kondensator-Seite (CS) jeweils einen Kondensator (C) mit einem negativen Pol (C-) aufweisen, c) on the capacitor side (CS) each have a capacitor (C) with a negative pole (C-), d) jeweils ein Ventilgehäuse (2) aufweisen, das zwischen der Anschluss-Seite (AS) und der Kondensator-Seite (CS) angeord¬ net und auf beiden Seiten (AS, CS) mit quer zur Anordnungs¬ richtung (AR) parallel zueinander angeordneten Kühlplatten (4, 5) verschlossen ist, an denen im Ventilgehäuse (2) je ein elektrisches Ventil (IGBT) zur Kühlung anliegt, welche eine Halbbrücke bilden, und d) each having a valve housing (2), the angeord ¬ net between the connection side (AS) and the capacitor side (CS) and on both sides (AS, CS) with transverse to the arrangement ¬ direction (AR) parallel to each other arranged cooling plates (4, 5) is closed, at which in the valve housing (2) depending on an electric valve (IGBT) is applied for cooling, which form a half-bridge, and d) jeweils eine elektrische Verbindung zwischen dem negativen Anschluss (AC-) und dem negativen Pol (C-) aufweisen, d) each have an electrical connection between the negative terminal (AC) and the negative pole (C-), d a d u r c h g e k e n n z e i c h n e t, characterized, dass die negativen Pole (C-) und die negativen Anschlüssethat the negative poles (C-) and the negative connections (AC-) aller Module (1) jeweils über eine Kühlplatte (4) er¬ folgt . (AC) of all modules (1) in each case via a cooling plate (4) he follows ¬ . 2. Mehrstufenumrichter nach Anspruch 1, 2. multi-stage converter according to claim 1, d a d u r c h g e k e n n z e i c h n e t, characterized, dass die negativen Pole (C-) und die negativen Anschlüsse (AC-) aller Module (1) quer zur Anordnungsrichtung (AR) gese- hen auf derselben Seite liegen und die elektrische Verbindung jeweils über die auf dieser Seite liegende Kühlplatte (4) er¬ folgt . that the negative poles (C-) and the negative terminals (AC-) of all modules (1) are arranged transversely to the arrangement direction (AR). hen on the same page and the electrical connection in each case on the lying on this side cooling plate (4) he follows ¬ . 3. Mehrstufenumrichter nach Anspruch 1 oder 2, 3. multi-stage converter according to claim 1 or 2, d a d u r c h g e k e n n z e i c h n e t, characterized, dass bei zwei unmittelbar nebeneinander liegenden und elektrisch in Reihe geschalteten Modulen (1) die Kühlplatte (4), über welche die elektrische Verbindung erfolgt, jeweils auf derselben Seite angeordnet ist, und die Kühlplatten (4, 5) der beiden Module (1) parallel zueinander angeordnet sind. in the case of two modules (1) arranged directly next to each other and connected electrically in series, the cooling plate (4), via which the electrical connection takes place, is arranged on the same side, and the cooling plates (4, 5) of the two modules (1) are parallel are arranged to each other.
PCT/EP2016/069061 2016-08-10 2016-08-10 Multilevel converter Ceased WO2018028778A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3796539A1 (en) * 2019-09-17 2021-03-24 Maschinenfabrik Reinhausen GmbH Modular switching cell
WO2023061878A1 (en) * 2021-10-13 2023-04-20 Vitesco Technologies Germany Gmbh Electronic assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2443654A1 (en) * 2009-06-16 2012-04-25 ABB Technology AG Cooling of electrical components
WO2015003734A1 (en) * 2013-07-08 2015-01-15 Siemens Aktiengesellschaft Multilevel converter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2443654A1 (en) * 2009-06-16 2012-04-25 ABB Technology AG Cooling of electrical components
WO2015003734A1 (en) * 2013-07-08 2015-01-15 Siemens Aktiengesellschaft Multilevel converter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3796539A1 (en) * 2019-09-17 2021-03-24 Maschinenfabrik Reinhausen GmbH Modular switching cell
WO2021052730A1 (en) * 2019-09-17 2021-03-25 Maschinenfabrik Reinhausen Gmbh Modular switching cell
EP3796539B1 (en) 2019-09-17 2022-11-23 Maschinenfabrik Reinhausen GmbH Modular switching cell
US12003185B2 (en) 2019-09-17 2024-06-04 Maschinenfabrik Reinhausen Gmbh Modular switching cell
WO2023061878A1 (en) * 2021-10-13 2023-04-20 Vitesco Technologies Germany Gmbh Electronic assembly

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