WO2015128102A1 - Système d'entraînement électrique - Google Patents

Système d'entraînement électrique Download PDF

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Publication number
WO2015128102A1
WO2015128102A1 PCT/EP2015/050209 EP2015050209W WO2015128102A1 WO 2015128102 A1 WO2015128102 A1 WO 2015128102A1 EP 2015050209 W EP2015050209 W EP 2015050209W WO 2015128102 A1 WO2015128102 A1 WO 2015128102A1
Authority
WO
WIPO (PCT)
Prior art keywords
inverter
drive system
phase
electric drive
terminals
Prior art date
Application number
PCT/EP2015/050209
Other languages
German (de)
English (en)
Inventor
Martin Braun
Stefan Butzmann
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2015128102A1 publication Critical patent/WO2015128102A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/22—Multiple windings; Windings for more than three phases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/007—Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/32—Waterborne vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/12—Induction machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/14—Synchronous machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/16—DC brushless machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/18—Reluctance machines
    • 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
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/0074—Plural converter units whose inputs are connected in series
    • 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
    • H02M7/493—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 the static converters being arranged for operation 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
    • 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
    • H02M7/53871—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 with automatic control of output voltage or current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the invention relates to an electric drive system, in particular for an electrically operated vehicle such as an electric car or a hybrid vehicle.
  • an inverter 102 in the form of a
  • Pulse-controlled inverter For this purpose, a DC voltage provided by a DC voltage intermediate circuit 103 can be converted into a multi-phase AC voltage, for example a three-phase AC voltage.
  • the DC intermediate circuit 103 is fed by a string 104 of serially connected battery modules 105 or any DC voltage sources.
  • Document DE 10 2011 085 731 A1 discloses an electric drive system for a six-phase motor with two inverters connected in parallel.
  • the document DE 10 2008 008 978 AI discloses modular drive converters.
  • Document DE 10 2010 001 250 A1 discloses an electric drive system for an electric machine with two
  • the present invention provides an electric drive system with a n-phase electric machine, n> 1, which has at least two polyphase winding strands, a first
  • An inverter whose output terminals are connected to the phase terminals of a first one of the multiphase winding phases of the electric machine, a second parallel to the first inverter connected second inverter whose output terminals are connected to the phase terminals of a second of the polyphase winding phases of the electric machine, and a DC voltage source, which is connected to a first input terminal of a first input terminal of the first inverter and a second output terminal to a first input terminal of the second inverter, wherein a second input terminal of the first inverter and a second input terminal of the first inverter
  • Input terminal of the second inverter are connected to each other groundless, so that the first inverter and the second inverter are arranged in series.
  • the drive system continues to include a first DC voltage intermediate circuit, which between the
  • Input terminals of the first inverter is coupled, and have a second DC voltage intermediate circuit, which between the
  • Input terminals of the second inverter is coupled.
  • One idea of the present invention is to control electrical machines by means of standardized power assemblies, such as inverters, for example in B6 topology.
  • inverters are available as standardized module types, which are inexpensive to procure and implement by economies of scale.
  • the modularization of the power modules advantageously increases the efficiency of the electric drive system without the implementation of the electrical machine or of the individual power units per se being more expensive or expensive.
  • simple mechanical connection means can be provided for all power modules, by means of which the system modules can be interconnected.
  • a central control device for example, on a central control board, be provided equally for all power assemblies.
  • the first and the second inverter each having a three-phase self-commutated inverter comprising three balanced half-bridges of two power semiconductor switches in series circuit.
  • the switching elements may each comprise power semiconductor switches, preferably MOSFET switches or IGBT switches. These switches are particularly durable and reliable to control.
  • the drive system may further comprise a control device which is adapted to the power semiconductor switches of the first Inverter and the second inverter to control, wherein the control device is arranged on a central control board for the first inverter and the second inverter.
  • the DC voltage source can have a multiplicity of battery modules connected in series.
  • the drive system may further comprise a third inverter connected in parallel to the first inverter, whose input terminals are respectively coupled to input terminals of the first inverter, and a fourth connected in parallel to the second inverter
  • Inverters having their input terminals each with
  • Input terminals of the third inverter is coupled, and a fourth DC link, which is coupled between the input terminals of the fourth inverter include.
  • Fig. 1 is a schematic representation of an exemplary conventional electric drive system
  • FIG. 2 is a schematic diagram of an electric drive system according to another embodiment of the present invention
  • FIG. and Fig. 3 is a schematic representation of an electric drive system according to another embodiment of the present invention.
  • FIG. 2 shows a schematic representation of an electric drive system 20 with a six-phase electrical machine 6, which may be, for example, a switched reluctance machine or a rotating field machine.
  • the electric machine 6 has two three-phase winding strands 6a and 6b, which can be coupled together in their neutral point.
  • the electric drive system 20 also has an inverter system comprising at least a first inverter 3a and a second inverter 3b.
  • the first inverter 3a feeds the first three-phase winding branch 6a of the electric machine 6 at its output terminals.
  • the second inverter 3b feeds the second three-phase winding branch 6b of the electrical machine 6 at its output terminals.
  • the inverters 3a and 3b each have a B6 full-bridge topology, that is, each of the inverters has a three-phase self-commutated inverter, the three symmetrical half-bridges of two power semiconductor switches Hl and H2, H3 and H4 or H5 and H6 in
  • the power semiconductor switches may be, for example, MOSFET switches or IGBT switches. However, it is also possible to use any other type of switching elements as switches Hl to H6 and to switch parallel to each switching element Hl to H6 a freewheeling diode.
  • the first inverter 3a and the second inverter 3b can either as a separate inverter units or in a
  • Machine 6 is coupled.
  • a (not explicitly shown) control device can be used, which, for example, on a common control board
  • the inverters 3a and 3b must each consist of a
  • DC intermediate circuit 2a and 2b are fed.
  • electric drive system 20 is a common DC voltage source 1,
  • a traction battery of an electric vehicle for supplying both DC voltage intermediate circuits 2a and 2b with electrical
  • the DC voltage source 1 may, for example, have a series connection of battery modules 5, the number of which is shown by way of example in FIG. 2 as 3 - any other number of battery modules 5 may also be possible.
  • the number of phases of the inverters 3a and 3b may differ from the exemplary number of three shown in FIG. 2, depending on the required number of phases of the phase windings 6a and 6b of the electric machine 6 whose phase number is any number can accept. It is also possible to connect more than two inverters 3a and 3b in parallel, in particular if the electric machine 6 has more than two polyphase winding strands 6a and 6b.
  • Winding strands are assigned and electrically connected with selbigem.
  • the DC voltage source 1 is in each case one of its two
  • Inverters 3a and 3b connected.
  • the respective other input terminals of the two inverters 3a and 3b are connected to each other groundless, so that the inverters 3a and 3b are arranged in series.
  • the performance of the electric drive system 20 can be significantly increased while maintaining the desired output voltage level.
  • the average voltage level between the two inverters 3a and 3b can in a suitable manner via the control device of the
  • Inverter system can be symmetrized. This requires the
  • the defective or defective part of the inverter system can be disabled and bypassed by appropriate bypass switch in the series circuit of the inverter or bypassed, and the electric machine 6 is at least temporarily by the rest
  • Fig. 3 shows a development of the electric drive system 20 of Fig. 2.
  • two or more inverters 3a and 3c, and 3b and 3d, respectively, may be connected in parallel in each of the series-connected inverter subsystems of the inverter system.
  • a plurality of inverters 3a and 3c or 3b and 3d per voltage level can be implemented, which can be staggered, for example, in order to reduce voltage and / or current fluctuations ("ripple") in the phase voltages or the phase currents entering the electrical machine 6
  • ripple current fluctuations
  • Inverters 3a, 3b, 3c and 3d are stabilized on the input side via their own DC voltage intermediate circuit 2a, 2b, 2c and 2d. Further, each of the inverters 3a, 3b, 3c, and 3d feeds a three-phase winding string 6a, 6b, 6c, 6d of the electric machine. In the example of FIG. 3, the electric machine 6 is therefore a twelve-phase machine.
  • the number of voltage levels as well as the number of inverters 3a and 3c or 3b and 3d per voltage level are shown in FIG. 3 only by way of example with two each - it is readily possible to supply more than two voltage levels or more than two inverters per voltage level to implement.
  • a center tap of the DC voltage source 1 between two sub-groups of the battery modules 5 can be used to connect the ground-free intermediate voltage planes between the two to stabilize in each case in series input terminals of the individual inverter groups per voltage level.
  • the individual inverters 3a and 3c or 3b and 3d need only be designed for a fraction of the total DC voltage of the DC voltage source 1, depending on the number of voltage intermediate levels used. By virtue of this, standard power modules for high output voltages of the DC voltage source 1 can also be used.
  • the electric machine 6 can be, for example, a synchronous or asynchronous machine, a reluctance machine or a brushless DC motor (BLDC)
  • BLDC brushless DC motor
  • Drive system 20 of Fig. 2 to 3 in stationary systems use, for example, in power plants, electrical power plants such as wind turbines, photovoltaic systems or
  • Flywheel accumulators pumped storage or similar systems.
  • Another possible use of the electric drive system 20 of FIGS. 2 to 3 are passenger or freight vehicles, which are designed for locomotion on or under the water, such as ships, motor boats or the like.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un système d'entraînement électrique. Ledit système comprend un moteur électrique à 3n phases, n>l, lequel comporte au moins deux enroulements de phase polyphasés, un premier onduleur dont les bornes de sortie sont reliées aux raccordements de phase d'un premier des enroulements de phase triphasés du moteur électrique, un deuxième onduleur monté parallèlement au premier onduleur et dont les bornes de sortie sont reliées aux raccordements de phase d'un deuxième des enroulements de phase polyphasés du moteur électrique, une source de tension continue, qui est reliée par une première borne de sortie à une première borne d'entrée du premier onduleur et par une deuxième borne de sortie à une première borne d'entrée du deuxième onduleur, un premier circuit intermédiaire à tension continue, lequel est couplé entre les bornes d'entrée du premier onduleur, et un deuxième circuit intermédiaire à tension continue, lequel est couplé entre les bornes d'entrée du deuxième onduleur. Une deuxième borne d'entrée du premier onduleur et une deuxième borne d'entrée du deuxième onduleur sont reliées entre elles sans masse, de sorte que le premier onduleur et le deuxième onduleur sont disposés en série.
PCT/EP2015/050209 2014-02-27 2015-01-08 Système d'entraînement électrique WO2015128102A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014203563.5A DE102014203563A1 (de) 2014-02-27 2014-02-27 Elektrisches Antriebssystem
DE102014203563.5 2014-02-27

Publications (1)

Publication Number Publication Date
WO2015128102A1 true WO2015128102A1 (fr) 2015-09-03

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DE (1) DE102014203563A1 (fr)
WO (1) WO2015128102A1 (fr)

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