EP3411943A1 - Dc voltage converter arrangement for an electric machine - Google Patents

Dc voltage converter arrangement for an electric machine

Info

Publication number
EP3411943A1
EP3411943A1 EP17702815.6A EP17702815A EP3411943A1 EP 3411943 A1 EP3411943 A1 EP 3411943A1 EP 17702815 A EP17702815 A EP 17702815A EP 3411943 A1 EP3411943 A1 EP 3411943A1
Authority
EP
European Patent Office
Prior art keywords
winding
converter
stator
electric machine
converter arrangement
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Withdrawn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
EP17702815.6A
Other languages
German (de)
French (fr)
Inventor
Magnus Jaster
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.)
Vitesco Technologies GmbH
Original Assignee
Continental Automotive 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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP3411943A1 publication Critical patent/EP3411943A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
    • H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/0094—Structural association with other electrical or electronic devices
    • 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
    • H02M1/0095—Hybrid converter topologies, e.g. NPC mixed with flying capacitor, thyristor converter mixed with MMC or charge pump mixed with buck
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
    • H02M3/3372—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration of the parallel type
    • 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

Definitions

  • the invention relates to a DC / DC converter arrangement for an electrical machine.
  • a Sta ⁇ torblechonce serves to drive a rotor, wherein a stator winding causes by a current flow a magnetic field, which generates a moment between the stator and the rotor to the rotating drive.
  • a DC-DC converter In electric vehicles and hybrid vehicles, a DC-DC converter is typically used to support a 12V vehicle electrical system.
  • a DC-DC converter converts a DC voltage into a DC voltage with a higher, lower or inverted voltage level, which takes place by means of a periodically operating electronic switch and by means of at least one temporary storage for energy.
  • As an intermediate ⁇ memory or for isolation is either an inductor or a transformer (for higher voltages) used.
  • the inductance or the transformer is also required for filtering high-frequency current components, which are generated in the DC voltage converter.
  • the inductance or the inductance or the inductance is either an inductor or a transformer (for higher voltages) used.
  • the inductance or the transformer is also required for filtering high-frequency current components, which are generated in the DC voltage converter.
  • the inventive DC-DC converter arrangement for an electrical machine comprises a DC-DC converter and a stator having a first winding and at least one second winding, wherein the first winding is arranged for operating the electrical machine, and the at least one second winding for providing an inductance for the DC-DC converter is set up.
  • the at least one second coil may be incorporated into a lamination stack of the stator of an electrical machine and provides an additional inductance ready to which the DC clamping ⁇ voltage converter can be used for its operation.
  • the inductance of the at least one second winding can be used as a buffer, as an insulating element and as a filter element for high-frequency current components which are generated in the DC-DC converter.
  • the winding may preferably be arranged on the stator such that each conductor of the second winding, which passes through the stator in the axial direction and is exposed to the magnetic field of one pole, is connected in series with another conductor which is suitable for each magnetic excitation and Position of the rotor is exposed to the same field as the field of the first conductor.
  • the connection of the two conductors is preferably carried out on one side of the stator with respect to the axis of rotation. As a result, the induced voltages in this conductor loop cancel each other out and at the ends on the other side no potential difference can be measured.
  • the at least one second winding thus becomes special little influenced by the magnetic flux in the stator, which is generated by the operation of the electric machine.
  • Parts of the DC-DC converter are thus integrated into the stator, whereby existing structures can be used.
  • the at least one second winding can be cooled by an already existing cooling system for the first winding of the stator.
  • Other useful for the DC-DC converter structures of the stator or the electric machine for example, the winding technology, PCB connection, power and the microprocessor.
  • a power electronics of the DC-DC converter is integrated in a circuit board of an inverter of the electric machine.
  • the stator may further comprise a plurality of second windings.
  • the plurality of second windings are distributed within the stator, and make a contribution that the current intensity is minimized in ⁇ nergur of individual lines or kept particularly small.
  • the at least one second winding comprises two parallel wires or conductors.
  • a transformer is generated, which is particularly advantageous for applications with high-voltage systems.
  • transmission ratios not equal to 1 can be realized with this embodiment with appropriate adaptation of the second winding.
  • a star point of the electric machine provides a clocked and regulated voltage output. This allows for extra simple way an integration of inverter and DC-DC converter.
  • FIG. 1 is a perspective partial view of an embodiment of a Ausu ⁇ tion of a DC-DC converter arrangement according to the invention with a second winding
  • Fig. 2 is a perspective view of the second winding according to
  • FIG. 3 shows an electrical circuit diagram of an embodiment of a DC-DC converter arrangement for a low-voltage system
  • FIG. 4 shows an electrical circuit diagram of an embodiment of a DC-DC converter arrangement for a high-voltage system
  • Fig. 5 is an electrical circuit diagram of an embodiment of a DC-DC converter arrangement for a low-voltage system
  • FIG. 6 shows an electrical circuit diagram of an embodiment of a DC-DC converter arrangement for a high-voltage system.
  • Fig. 1 shows the upper part of a stator 1 of an electric machine not further shown by FIG.
  • the stator comprises winding grooves 3 arranged along its inner periphery 2 for a first winding (not shown) for operation of the electrical machine.
  • a second winding 5 for providing an inductance for a DC-DC converter not shown by Fig. 1 is arranged.
  • the second winding 5 comprises four conductor sections 6 running parallel to one another and parallel to a longitudinal axis of the stator 1, wherein each of the conductor sections 6 comprises four conductors 7 or wires running parallel to one another and parallel to the longitudinal axis.
  • the conductor sections 6 are interconnected at oppositely lying ⁇ front ends of the stator 1 via webs.
  • FIG. 3 shows a low-voltage network, eg a 48V network, with three phases u, v and w of a first winding 9 of a stator of an electrical machine 10 with an inverter 11, the electric machine 10 operating here as a generator for operating a load R L , Within the stator, an inductance Lstator is provided, which is formed by a second winding 5 within the stator and is available to a DC-DC converter.
  • the star point of the electric machine 10 is used according to this embodiment for the provision of a clocked and regulated voltage output, whereby an integration of inverter 11 and DC-DC converter is provided.
  • FIG. 4 shows a high-voltage network HV with three phases u, v and w of a first winding 9 of a stator of an electric machine 10 with an inverter 11, wherein the electric machine 10 operates as a generator for operating a load R L , which in a low-voltage network LV is arranged.
  • a transformer 12 is arranged, which transforms a higher DC voltage in the high-voltage network HV into a lower DC voltage in the low-voltage network, wherein the transformer 12 - like shown by Fig. 1 - is formed by two mutually parallel conductors or wires and a DC voltage ⁇ converter is available.
  • the star point of the electric machine 10 is used according to this embodiment for the provision of a clocked and regulated voltage output, whereby an integration of inverter 11 and DC-DC converter is provided.
  • Fig. 5 shows a DC-DC converter 18 in the form of a buck and boost converter with the inductor 5 which is formed by the arrangement shown in Figure 1 of conductors in a stator in a second winding.
  • the switch 14 and the voltage source 13 are not needed.
  • the source 13 and the switch 14 is required, wherein the parallel resistor 16 and the voltage source 15 are omitted.
  • FIG. 6 shows a DC-DC converter 19 with the transformer 5 which is formed by the arrangement of conductors in a stator in a second winding described in FIG. In this arrangement, a load 16 is operated in a low-voltage network from the high-voltage source 17.

Abstract

The invention relates to a DC voltage converter arrangement for an electric machine (10). Said DC voltage converter arrangement comprises a DC voltage converter (18, 19) and a stator (1) having a first winding (9) and at least one second winding (5); the first winding (9) is designed to operate the electric machine (10), and the at least one second winding (5) is designed to provide an inductor (LStator) for the DC voltage converter (18, 19).

Description

Beschreibung description
Gleichspannungswandler-Anordnung für eine elektrische Maschine Die Erfindung betrifft eine Gleichspannungswandler-Anordnung für eine elektrische Maschine. DC / DC converter arrangement for an electric machine The invention relates to a DC / DC converter arrangement for an electrical machine.
In einer elektrischen Maschine dient typischerweise ein Sta¬ torblechpaket dem Antrieb eines Rotors, wobei eine Sta- tor-Wicklung durch einen Stromfluss ein magnetisches Feld bewirkt, welches ein Moment zwischen dem Stator und dem Rotor zu dessen rotierendem Antrieb erzeugt. In an electric machine typically a Sta ¬ torblechpaket serves to drive a rotor, wherein a stator winding causes by a current flow a magnetic field, which generates a moment between the stator and the rotor to the rotating drive.
In Elektrofahrzeugen und Hybridfahrzeugen wird zur Unterstützung eines 12V-Bordnetzes typischerweise ein Gleichspannungswandler verwendet. Ein Gleichspannungswandler wandelt eine Gleichspannung in eine Gleichspannung mit höherem, niedrigerem oder invertiertem Spannungsniveau um, was mittels eines periodisch arbeitenden elektronischen Schalters und mittels wenigstens eines Zwischenspeichers für Energie erfolgt. Als Zwischen¬ speicher bzw. zur Isolation kommt entweder eine Induktivität oder ein Transformator (für höhere Spannungen) zum Einsatz. Die Induktivität bzw. der Transformator wird weiterhin zum Filtern hochfrequenter Stromanteile benötigt, welche im Gleichspan- nungswandler erzeugt werden. Für die Induktivität bzw. denIn electric vehicles and hybrid vehicles, a DC-DC converter is typically used to support a 12V vehicle electrical system. A DC-DC converter converts a DC voltage into a DC voltage with a higher, lower or inverted voltage level, which takes place by means of a periodically operating electronic switch and by means of at least one temporary storage for energy. As an intermediate ¬ memory or for isolation is either an inductor or a transformer (for higher voltages) used. The inductance or the transformer is also required for filtering high-frequency current components, which are generated in the DC voltage converter. For the inductance or the
Transformator ist ein relativ großer Bauraum vorzuhalten, welche zudem auch einen verhältnismäßig hohen Kostenanteil in den Gleichspannungswandlern bilden. Es ist daher eine Aufgabe der vorliegenden Erfindung, eineTransformer is vorzuhalten a relatively large space, which also also form a relatively high cost share in the DC-DC converters. It is therefore an object of the present invention to provide a
Gleichspannungswandler-Anordnung für eine elektrische Maschine bereitzustellen, welche besonders klein baut und kostengünstig ist . Die Aufgabe wird gelöst durch die Gegenstände der unabhängigen Ansprüche. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche, der nachfolgenden Beschreibung sowie der Figuren . DC-DC converter arrangement for an electrical machine to provide, which is very small and inexpensive. The object is solved by the subject matters of the independent claims. Advantageous embodiments are subject of the dependent claims, the following description and the figures.
Die erfindungsgemäße Gleichspannungswandler-Anordnung für eine elektrische Maschine umfasst einen Gleichspannungswandler und einen Stator mit einer ersten Wicklung und wenigstens einer zweiten Wicklung, wobei die erste Wicklung zum Betrieb der elektrischen Maschine eingerichtet ist, und die wenigstens eine zweite Wicklung zur Bereitstellung einer Induktivität für den Gleichspannungswandler eingerichtet ist. The inventive DC-DC converter arrangement for an electrical machine comprises a DC-DC converter and a stator having a first winding and at least one second winding, wherein the first winding is arranged for operating the electrical machine, and the at least one second winding for providing an inductance for the DC-DC converter is set up.
Die wenigstens eine zweite Wicklung kann in ein Blechpaket des Stators einer elektrischen Maschine eingebracht sein und stellt eine zusätzliche Induktivität bereit, welche der Gleichspan¬ nungswandler für seinen Betrieb nutzen kann. Die Induktivität der wenigstens einen zweiten Wicklung kann als Zwischenspeicher, als Isolationselement und als Filterelement für hochfrequente Stromanteile, welche im Gleichspannungswandler erzeugt werden, genutzt werden. The at least one second coil may be incorporated into a lamination stack of the stator of an electrical machine and provides an additional inductance ready to which the DC clamping ¬ voltage converter can be used for its operation. The inductance of the at least one second winding can be used as a buffer, as an insulating element and as a filter element for high-frequency current components which are generated in the DC-DC converter.
Die Wicklung kann bevorzugt derart an dem Stator angeordnet sein, dass jeder Leiter der zweiten Wicklung, der durch den Stator in axialer Richtung verläuft und dem magnetischen Feld eines Poles ausgesetzt ist, in Reihe zu einem weiteren Leiter geschaltet ist, der für jede magnetische Anregung und Stellung des Rotors dem gleichen Feld wie dem Feld des ersten Leiters ausgesetzt ist. Die Verbindung der beiden Leiter erfolgt bevorzugt auf einer Seite des Stators in Bezug zur Drehachse. Dadurch heben sich die induzierten Spannungen in dieser Leiterschleife auf und an den Enden auf der anderen Seite ist kein Potentialunterschied messbar. Die wenigstens eine zweite Wicklung wird somit besonders wenig vom magnetischen Fluss im Stator, welcher durch den Betrieb der elektrischen Maschine erzeugt wird, beeinflusst. The winding may preferably be arranged on the stator such that each conductor of the second winding, which passes through the stator in the axial direction and is exposed to the magnetic field of one pole, is connected in series with another conductor which is suitable for each magnetic excitation and Position of the rotor is exposed to the same field as the field of the first conductor. The connection of the two conductors is preferably carried out on one side of the stator with respect to the axis of rotation. As a result, the induced voltages in this conductor loop cancel each other out and at the ends on the other side no potential difference can be measured. The at least one second winding thus becomes special little influenced by the magnetic flux in the stator, which is generated by the operation of the electric machine.
Teile des Gleichspannungswandlers sind somit in den Stator integriert, wodurch bestehende Strukturen genutzt werden können. Insbesondere kann die wenigstens eine zweite Wicklung durch ein ohnehin vorhandenes Kühlsystem für die erste Wicklung des Stators gekühlt werden. Weitere auch für den Gleichspannungswandler nutzbare Strukturen des Stators bzw. der elektrischen Maschine sind beispielsweise die Wicklungstechnik, PCB-Anbindung, Stromversorgung und der Mikroprozessor. In diesem Zusammenhang ist gemäß einer Ausführungsform insbesondere vorgesehen, dass eine Leistungs- elektronik des Gleichspannungswandlers in eine Platine eines Inverters der elektrischen Maschine integriert ist. Parts of the DC-DC converter are thus integrated into the stator, whereby existing structures can be used. In particular, the at least one second winding can be cooled by an already existing cooling system for the first winding of the stator. Other useful for the DC-DC converter structures of the stator or the electric machine, for example, the winding technology, PCB connection, power and the microprocessor. In this context, it is provided according to an embodiment in particular that a power electronics of the DC-DC converter is integrated in a circuit board of an inverter of the electric machine.
Der Stator kann weiterhin mehrere zweite Wicklungen aufweisen. Die mehreren zweiten Wicklungen sind innerhalb des Stators verteilt und leisten einen Beitrag, dass die Stromstärke in¬ nerhalb der einzelnen Leitungen minimiert bzw. besonders klein gehalten wird. The stator may further comprise a plurality of second windings. The plurality of second windings are distributed within the stator, and make a contribution that the current intensity is minimized in ¬ nerhalb of individual lines or kept particularly small.
Gemäß einer weiteren Ausführungsform umfasst die wenigstens eine zweite Wicklung zwei parallel verlaufende Drähte bzw. Leiter. Durch die zwei parallel zueinander verlaufenden Drähte wird ein Transformator erzeugt, was insbesondere für Anwendungen mit Hochvoltsystemen vorteilhaft ist. Auch Übertragungsverhältnisse ungleich 1 können mit dieser Ausführungsform bei entsprechender Anpassung der zweiten Wicklung realisiert werden. According to a further embodiment, the at least one second winding comprises two parallel wires or conductors. By the two wires running parallel to each other, a transformer is generated, which is particularly advantageous for applications with high-voltage systems. Also, transmission ratios not equal to 1 can be realized with this embodiment with appropriate adaptation of the second winding.
Ebenfalls kann vorteilhaft vorgesehen sein, dass ein Sternpunkt der elektrischen Maschine einen getakteten und geregelten Spannungsausgang bereitstellt. Dies ermöglicht auf besonders einfache Weise eine Integration von Inverter und Gleichspannungswandler . It can also advantageously be provided that a star point of the electric machine provides a clocked and regulated voltage output. This allows for extra simple way an integration of inverter and DC-DC converter.
Im Folgenden werden Ausführungsbeispiele der Erfindung anhand der schematischen Zeichnung näher erläutert. Hierbei zeigt Embodiments of the invention are explained in more detail below with reference to the schematic drawing. This shows
Fig. 1 eine perspektivische Teilansicht eines Ausfüh¬ rungsbeispiels einer erfindungsgemäßen Gleichspannungswandler-Anordnung mit einer zweiten Wicklung, 1 is a perspective partial view of an embodiment of a Ausfüh ¬ tion of a DC-DC converter arrangement according to the invention with a second winding,
Fig. 2 eine perspektivische Ansicht der zweiten Wicklung nach Fig. 2 is a perspective view of the second winding according to
Fig. 1,  Fig. 1,
Fig. 3 einen elektrischen Schaltplan eines Ausführungs- beispiels einer Gleichspannungswandler-Anordnung für ein Niedrigvoltsystem, 3 shows an electrical circuit diagram of an embodiment of a DC-DC converter arrangement for a low-voltage system,
Fig. 4 einen elektrischen Schaltplan eines Ausführungsbeispiels einer Gleichspannungswandler-Anordnung für ein Hochvoltsystem, 4 shows an electrical circuit diagram of an embodiment of a DC-DC converter arrangement for a high-voltage system,
Fig. 5 einen elektrischen Schaltplan eines Ausführungsbeispiels einer Gleichspannungswandler-Anordnung für ein Niedrigvoltsystem und Fig. 5 is an electrical circuit diagram of an embodiment of a DC-DC converter arrangement for a low-voltage system and
Fig. 6 einen elektrischen Schaltplan eines Ausführungsbeispiels einer Gleichspannungswandler-Anordnung für ein Hochvoltsystem. Fig. 1 zeigt den oberen Teil eines Stators 1 einer nicht weiter durch Fig. 1 gezeigten elektrischen Maschine. Der Stator umfasst entlang seines inneren Umfangs 2 angeordnete Wicklungsnuten 3 für eine nicht dargestellte erste Wicklung zum Betrieb der elektrischen Maschine. Entlang eines äußeren Umfangs 4 des Stators 2 ist eine zweite Wicklung 5 zur Bereitstellung einer Induktivität für einen nicht durch Fig. 1 gezeigten Gleichspannungswandler angeordnet. Wie insbesondere aus Fig. 2 ersichtlich, umfasst die zweite Wicklung 5 vier parallel zueinander sowie parallel zu einer Längsachse des Stators 1 verlaufende Leiterabschnitte 6, wobei jeder der Leiterabschnitte 6 vier parallel zueinander sowie parallel zu der Längsachse verlaufende Leiter 7 bzw. Drähte umfasst. Die Leiterabschnitte 6 sind an einander gegenüber¬ liegenden stirnseitigen Enden des Stators 1 über Stege 8 miteinander verbunden. 6 shows an electrical circuit diagram of an embodiment of a DC-DC converter arrangement for a high-voltage system. Fig. 1 shows the upper part of a stator 1 of an electric machine not further shown by FIG. The stator comprises winding grooves 3 arranged along its inner periphery 2 for a first winding (not shown) for operation of the electrical machine. Along an outer periphery 4 of the Stators 2, a second winding 5 for providing an inductance for a DC-DC converter not shown by Fig. 1 is arranged. As can be seen in particular from FIG. 2, the second winding 5 comprises four conductor sections 6 running parallel to one another and parallel to a longitudinal axis of the stator 1, wherein each of the conductor sections 6 comprises four conductors 7 or wires running parallel to one another and parallel to the longitudinal axis. The conductor sections 6 are interconnected at oppositely lying ¬ front ends of the stator 1 via webs. 8
Fig. 3 zeigt Niedervoltnetz, z.B. ein 48V-Netz, mit drei Phasen u, v und w einer ersten Wicklung 9 eines Stators einer elektrischen Maschine 10 mit einem Inverter 11, wobei die elektrische Maschine 10 hier als Generator zum Betreiben einer Last RL arbeitet. Innerhalb des Stators ist eine Induktivität Lstator vorgesehen, welche durch eine zweite Wicklung 5 innerhalb des Stators gebildet wird und einem Gleichspannungswandler zur Verfügung steht. Der Sternpunkt der elektrischen Maschine 10 wird gemäß diesem Ausführungsbeispiel für die Bereitstellung eines getakteten und geregelten Spannungsausgangs genutzt, wodurch eine Integration von Inverter 11 und Gleichspannungswandler bereitgestellt wird. 3 shows a low-voltage network, eg a 48V network, with three phases u, v and w of a first winding 9 of a stator of an electrical machine 10 with an inverter 11, the electric machine 10 operating here as a generator for operating a load R L , Within the stator, an inductance Lstator is provided, which is formed by a second winding 5 within the stator and is available to a DC-DC converter. The star point of the electric machine 10 is used according to this embodiment for the provision of a clocked and regulated voltage output, whereby an integration of inverter 11 and DC-DC converter is provided.
Fig. 4 zeigt ein Hochvoltnetz HV mit drei Phasen u, v und w einer ersten Wicklung 9 eines Stators einer elektrischen Maschine 10 mit einem Inverter 11, wobei die elektrische Maschine 10 als Generator zum Betreiben einer Last RL arbeitet, welche in einem Niedervoltnetz LV angeordnet ist. Innerhalb des Stators ist ein Transformator 12 angeordnet, welcher eine höhere Gleichspannung in dem Hochvoltnetz HV in eine niedrigere Gleichspannung in dem Niedervoltnetz transformiert, wobei der Transformator 12 - wie durch Fig. 1 gezeigt - durch zwei parallel zueinander verlaufende Leiter bzw. Drähte gebildet wird und einem Gleichspannungs¬ wandler zur Verfügung steht. Der Sternpunkt der elektrischen Maschine 10 wird gemäß diesem Ausführungsbeispiel für die Bereitstellung eines getakteten und geregelten Spannungsausgangs genutzt, wodurch eine Integration von Inverter 11 und Gleichspannungswandler bereitgestellt wird. 4 shows a high-voltage network HV with three phases u, v and w of a first winding 9 of a stator of an electric machine 10 with an inverter 11, wherein the electric machine 10 operates as a generator for operating a load R L , which in a low-voltage network LV is arranged. Within the stator, a transformer 12 is arranged, which transforms a higher DC voltage in the high-voltage network HV into a lower DC voltage in the low-voltage network, wherein the transformer 12 - like shown by Fig. 1 - is formed by two mutually parallel conductors or wires and a DC voltage ¬ converter is available. The star point of the electric machine 10 is used according to this embodiment for the provision of a clocked and regulated voltage output, whereby an integration of inverter 11 and DC-DC converter is provided.
Fig. 5 zeigt einen Gleichspannungswandler 18 in Form eines Tief- und Hochsetzstellers mit der Induktivität 5 die durch die in Figur 1 gezeigte Anordnung von Leitern in einem Stator in einer zweiten Wicklung gebildet wird. Zum Betrieb eines Tiefsetzstellers an einer Last 16 aus der Quelle 15 werden der Schalter 14 und die Spannungsquelle 13 nicht benötigt. Zur Realisierung eines Hochsetzstellers wird die Quelle 13 und der Schalter 14 benötigt wobei der parallele Widerstand 16 und die Spannungsquelle 15 entfallen . Fig. 5 shows a DC-DC converter 18 in the form of a buck and boost converter with the inductor 5 which is formed by the arrangement shown in Figure 1 of conductors in a stator in a second winding. To operate a buck converter on a load 16 from the source 15, the switch 14 and the voltage source 13 are not needed. For the realization of a boost converter, the source 13 and the switch 14 is required, wherein the parallel resistor 16 and the voltage source 15 are omitted.
Fig. 6 zeigt einen Gleichspannungswandler 19 mit dem Trans- formator 5 der durch die in Figur 1 beschriebene Anordnung von Leitern in einem Stator in einer zweiten Wicklung gebildet wird. In dieser Anordnung wird eine Last 16 in einem Niedervoltnetz aus der Hochvoltquelle 17 betrieben. 6 shows a DC-DC converter 19 with the transformer 5 which is formed by the arrangement of conductors in a stator in a second winding described in FIG. In this arrangement, a load 16 is operated in a low-voltage network from the high-voltage source 17.

Claims

Patentansprüche claims
1. Gleichspannungswandler-Anordnung für eine elektrische Maschine (10), die Gleichspannungswandler-Anordnung umfassend einen Gleichspannungswandler (18, 19) und einen Stator (1) mit einer ersten Wicklung (9) und wenigstens einer zweiten Wicklung (5), wobei die erste Wicklung (9) zum Betrieb der elektrischen Maschine (10) eingerichtet ist, und die wenigstens eine zweite Wicklung (5) zur Bereitstellung einer Induktivität ( Lstator ) für den Gleichspannungswandler (18, 19) eingerichtet ist. A DC-DC converter arrangement for an electrical machine (10), the DC-DC converter arrangement comprising a DC-DC converter (18, 19) and a stator (1) having a first winding (9) and at least one second winding (5), wherein the first Winding (9) for operating the electric machine (10) is arranged, and the at least one second winding (5) for providing an inductance (L sta gate) for the DC-DC converter (18, 19) is arranged.
2. Gleichspannungswandler-Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass eine Leistungselektronik des Gleich¬ spannungswandlers (11) in eine Platine eines Inverters inte- griert ist. 2. DC-DC converter arrangement according to claim 1, characterized in that a power electronics of the DC voltage converter ¬ (11) is inte grated in a circuit board of an inverter.
3. Gleichspannungswandler-Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Stator (1) mehrere zweite Wicklungen (5) aufweist. 3. DC-DC converter arrangement according to claim 1 or 2, characterized in that the stator (1) has a plurality of second windings (5).
4. Gleichspannungswandler-Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die wenigstens eine zweite Wicklung (5) zwei parallel verlaufende Drähte (7) umfasst. 4. DC-DC converter arrangement according to one of the preceding claims, characterized in that the at least one second winding (5) comprises two parallel wires (7).
5. Gleichspannungswandler-Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass ein Sternpunkt (S) der elektrischen Maschine (10) einen getakteten und geregelten Spannungsausgang bereitstellt. 5. DC-DC converter arrangement according to one of the preceding claims, characterized in that a neutral point (S) of the electric machine (10) provides a clocked and regulated voltage output.
6. Elektrische Maschine (10) umfassend eine Gleichspannungs wandler-Anordnung nach einem der vorstehenden Ansprüche. 6. Electrical machine (10) comprising a DC voltage converter arrangement according to one of the preceding claims.
EP17702815.6A 2016-02-01 2017-01-26 Dc voltage converter arrangement for an electric machine Withdrawn EP3411943A1 (en)

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DE102016201444.7A DE102016201444B4 (en) 2016-02-01 2016-02-01 DC-DC converter arrangement for an electrical machine
PCT/EP2017/051696 WO2017133962A1 (en) 2016-02-01 2017-01-26 Dc voltage converter arrangement for an electric machine

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DE102019217302A1 (en) * 2019-11-08 2021-05-12 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Refrigerant compressor of an electric and hybrid vehicle

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GB2289581A (en) * 1994-05-14 1995-11-22 Marconi Gec Ltd Alternator and static converter system
DE19652186C2 (en) * 1996-12-14 1999-04-15 Danfoss As Electric motor
CN2640102Y (en) * 2003-08-18 2004-09-08 何石思 Rare earth two-phase generator
JP4455145B2 (en) * 2004-04-27 2010-04-21 株式会社東芝 Railway vehicle drive control device
JP4367391B2 (en) * 2005-09-01 2009-11-18 トヨタ自動車株式会社 Charge control device and electric vehicle
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