WO2012163572A2 - Dispositif d'alimentation en énergie pour circuits onduleurs - Google Patents

Dispositif d'alimentation en énergie pour circuits onduleurs Download PDF

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Publication number
WO2012163572A2
WO2012163572A2 PCT/EP2012/055945 EP2012055945W WO2012163572A2 WO 2012163572 A2 WO2012163572 A2 WO 2012163572A2 EP 2012055945 W EP2012055945 W EP 2012055945W WO 2012163572 A2 WO2012163572 A2 WO 2012163572A2
Authority
WO
WIPO (PCT)
Prior art keywords
energy storage
voltage
module
power supply
coupling
Prior art date
Application number
PCT/EP2012/055945
Other languages
German (de)
English (en)
Other versions
WO2012163572A3 (fr
Inventor
Peter Feuerstack
Erik Weissenborn
Martin Kessler
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 WO2012163572A2 publication Critical patent/WO2012163572A2/fr
Publication of WO2012163572A3 publication Critical patent/WO2012163572A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • 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
    • H02M7/49—Combination of the output voltage waveforms of a plurality of converters
    • 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
    • B60L58/19—Switching between serial connection and parallel connection of battery modules
    • 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
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • 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 a power supply device for inverter circuits and a system having a power supply device for a
  • Energy storage device with inverter functionality in particular in a battery direct converter circuit for powering electrical machines.
  • Wind turbines or solar systems as well as in vehicles such as hybrid or
  • Electric vehicles increasingly electronic systems are used, which combine new energy storage technologies with electric drive technology.
  • 1, shows the feeding of three-phase current into a three-phase electrical machine 101.
  • a DC voltage provided by a DC voltage intermediate circuit 103 is converted into a three-phase AC voltage via a converter in the form of a pulse-controlled inverter 102.
  • the DC intermediate circuit 103 is fed by a string 104 of serially connected battery modules 105.
  • multiple battery modules 105 are often connected in series in a traction battery 104.
  • Multilevel Cascaded Inverter or Battery Direct Inverter Battery Direct Inverter
  • Battery Direct Inverter Battery Direct Inverter
  • Such systems include DC sources in multiple Energy storage module strings, which are directly connectable to an electrical machine or an electrical network. This can be single-phase or multi-phase
  • the energy storage module strands in this case have a plurality of energy storage modules connected in series, wherein each energy storage module has at least one battery cell and an associated controllable coupling unit, which makes it possible to interrupt the respective energy storage module string depending on control signals or to bridge the respectively associated at least one battery cell or each associated with at least one battery cell in the respective energy storage module string to switch.
  • suitable activation of the coupling units e.g. with the aid of pulse width modulation, suitable phase signals for controlling the phase output voltage can also be provided so that a separate pulse inverter can be dispensed with. The required for controlling the phase output voltage pulse inverter is thus integrated so to speak in the BDI.
  • BDIs usually have higher efficiency and higher
  • the energy for the control of the coupling units is usually by the
  • de-energized battery cells for example in the case of defective or completely discharged battery cells, may therefore be the case in which the coupling units can no longer be actuated due to a lack of operating voltage. In these cases, a suitable bridging control of the coupling units is no longer possible and the entire power supply line fails.
  • the present invention provides, according to one embodiment, a system having a power supply device which is adapted to a
  • n-phase supply voltage for an electrical machine wherein n> 1, with n parallel-connected power supply branches, which are each connected to one of n phase terminals, each of the power supply branches a
  • n parallel-connected power supply branches which are each connected to one of n phase terminals, each of the power supply branches a
  • a plurality of series connected energy storage modules each comprising:
  • an energy storage cell module having at least one energy storage cell, a coupling device with coupling elements, which are designed to, the
  • Energy storage cell module selectively in the respective power supply branch to switch or bypass, a transformer that converts the AC operating voltage of the power supply device into a module AC voltage, a
  • Rectifier circuit which rectifies the module AC voltage into a DC module voltage, and a module supply means which is operated with the module DC voltage, and which is adapted to supply the coupling elements of the coupling means with energy.
  • Power supply device for the coupling devices of energy storage modules of an energy storage device.
  • the power supply device provides an operating AC voltage for each of the energy storage modules that can be internally converted into a DC module voltage in each of the energy storage modules.
  • the module DC voltage then serves to supply the active power
  • the coupling devices of a power supply through the associated energy storage cells are self-sufficient, so that the coupling devices can be controlled even in case of a defect or a complete discharge of the energy storage cells to a safe switching state, for example, a bridging state of the defective or discharged
  • the energy storage device can be operated in any case even in the event of failure of individual energy storage cell modules.
  • Show it: 1 is a schematic representation of a power supply system for a three-phase electrical machine
  • Fig. 2 is a schematic representation of a system with a
  • FIG. 3 shows a schematic representation of the structure of an energy storage module of an energy storage device according to a further embodiment of the present invention.
  • FIG. 4 is a schematic representation of the structure of an energy storage module of an energy storage device according to still another
  • the system 20 shows a system 20 for voltage conversion of DC voltage provided by energy storage modules 3 into an n-phase AC voltage.
  • the system 20 includes an energy storage device 1 with energy storage modules 3, which are connected in series in power supply branches.
  • three energy supply branches are shown in FIG. 2, which are used to generate a three-phase
  • AC voltage for example, for a three-phase machine 2 are suitable.
  • Energy storage device 1 has at each power supply branch via an output terminal, which are respectively connected to phase lines 2a, 2b, 2c.
  • the system 20 in FIG. 2 serves for feeding an electric machine 2, in particular as a traction battery for the electric drive of an electrically operated vehicle, such as an electric vehicle or a hybrid vehicle.
  • the system 20 may further comprise a control device 6, which is connected to the energy storage device 1, and by means of which the
  • Energy storage device 1 can be controlled to the desired
  • the power supply branches can be connected at their end to a reference potential 4 (reference rail) which, in the illustrated embodiment, has an average potential with respect to the phase lines 2a, 2b, 2c of the electric machine 2.
  • the reference potential 4 may be, for example, a ground potential.
  • Each of the power supply branches has at least two in series Energy storage modules 3 on.
  • the number of energy storage modules 3 per power branch in FIG. 2 is three, but any other number of energy storage modules 3 is also possible.
  • each of the energy supply branches preferably comprises the same number of energy storage modules 3, but it is also possible to provide a different number of energy storage modules 3 for each energy supply branch.
  • the energy storage modules 3 each have two output terminals 3a and 3b, via which an output voltage of the energy storage modules 3 can be provided.
  • the system 20 further comprises a power supply device 1 1, which is designed to provide an AC operating voltage.
  • Power supply device 1 for example, from a (not shown) DC voltage source using a chopper or Multivibratorscnies a
  • Power supply device 1 1 can be arranged for example in the energy storage device 1 itself. It may also be that the energy supply device 1 1 in the control device 6 or an external control system, such as a battery management system, is arranged.
  • Power supply device 1 1 to the individual energy storage modules. 3
  • Energy storage modules 3 lines 12 are provided, which allow a series connection of the energy storage modules with respect to the operating AC power supply. Similarly, the energy storage modules 3 can each
  • the energy storage modules 3 each comprise a coupling device 9 with a plurality of coupling elements 7 and 8.
  • the energy storage modules 3 further comprise in each case one energy storage cell module 5 with one or more energy storage cells 5a, 5n connected in series.
  • the energy storage cell module 5 can have, for example, serially connected batteries 5a, 5n, for example, lithium-ion batteries.
  • the number of energy storage cells 5a, 5n in the energy storage module shown in FIG. 2 is exemplary two, but any other number of energy storage cells 5a, 5n is also possible.
  • the energy storage cell modules 5 are connected via connecting lines
  • Coupling device 9 is shown in Fig. 3 by way of example as a full bridge circuit with two each
  • Coupling elements 7 and two coupling elements 8 is formed.
  • the coupling elements 7 and 8 can each have an active switching element, for example, a semiconductor switch, and a freewheeling diode connected in parallel thereto.
  • the semiconductor switches may comprise field effect transistors (FETs), for example.
  • FETs field effect transistors
  • the freewheeling diodes can also be integrated in each case in the semiconductor switches.
  • the active switching elements or the coupling elements 7 and 8 as a power semiconductor switch, for example in the form of IGBTs (Insulated Gate Bipolar Transistors), JFETs (junction field-effect transistor) or as MOSFETs (Metal Oxide Semiconductor Field-Effect Transistors ).
  • the coupling elements 7 and 8 in Fig. 3 can be controlled in such a way, for example by means of the control device 6 in Fig. 2, that the energy storage cell module 5 is selectively connected between the output terminals 3a and 3b or that
  • Energy storage cell module 5 is bridged. By suitable driving the
  • the active switching elements receive their operating voltage from a
  • Module supply device 15 which is arranged in each energy storage module 3. To provide the operating voltage for the coupling device 9 is in the
  • a transformer 13 is arranged, whose primary winding 13a is connected to the leads 1 1 a and 1 1 b and 12 respectively.
  • Secondary winding 13b of the transformer 13 can be tapped off a module AC voltage which is output via lines 14a and 14b to a rectifier circuit 14.
  • the rectifier circuit 14 rectifies the module AC voltage
  • the module DC voltage is delivered via lines 15a and 15b to the module supply device 15.
  • the module supply device 15 can furthermore have a voltage stabilization circuit (not shown), for example with an intermediate circuit capacitor for stabilizing the module direct voltage.
  • the energy storage module 3 shown in FIG. 4 differs from the energy storage module 3 shown in FIG. 3 in that the coupling device 9 has two instead of four coupling elements 7, 8, which take place in a half-bridge circuit are interconnected in full bridge circuit. Furthermore, the energy storage module 3 shown in FIG. 4 differs from the energy storage module 3 shown in FIG. 3 in that a center tap 14c is provided on the secondary side 13b of the transformer 13, via which, for example, further secondary voltages such as, for example, a secondary voltage of opposite polarity are tapped can. Of course, it is also possible that the secondary side 13b of the transformer 13 shown in FIG.
  • the secondary side 13b of the transformer 13 has a similar center tap 13c or that the secondary side 13b of the transformer 13 does not have the center tap 13c. Furthermore, it may be possible to arrange on the secondary side 13b of the transformer 13 two separate secondary windings 13b, on each of which two different module alternating voltages for powering the coupling devices 9 can be tapped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un système qui comprend un dispositif d'alimentation en énergie destiné à fournir une tension alternative de fonctionnement, ainsi qu'un dispositif d'accumulation d'énergie pour produire une tension d'alimentation à n phases pour une machine électrique, n étant supérieur ou égal à 1, comprenant n branches d'alimentation en énergie montées en parallèle, reliées chacune à une borne de phase parmi n bornes de phase, chacune de ces branches présentant une pluralité de modules d'accumulation d'énergie (3) montés en série comprenant chacun : un module à éléments d'accumulation d'énergie (5) qui présente au moins un élément d'accumulation d'énergie (5a, 5n); un dispositif de couplage (9) comprenant des éléments de couplage (7, 8) conçus pour mettre en circuit sélectivement le module à éléments d'accumulation d'énergie (5) dans la branche d'alimentation en énergie correspondante ou pour le court-circuiter; un transformateur (13) qui transforme la tension alternative de fonctionnement du dispositif d'alimentation en énergie en tension alternative de module; un circuit redresseur (14) qui redresse la tension alternative de module pour générer une tension continue de module; ainsi qu'un dispositif d'alimentation de module (15) qui fonctionne avec la tension continue de module et qui est conçu pour alimenter en énergie les éléments de couplage (7, 8) des dispositifs de couplage (9).
PCT/EP2012/055945 2011-05-27 2012-04-02 Dispositif d'alimentation en énergie pour circuits onduleurs WO2012163572A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011076571.9 2011-05-27
DE102011076571A DE102011076571A1 (de) 2011-05-27 2011-05-27 Energieversorgungseinrichtung für Wechselrichterschaltungen

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WO2012163572A2 true WO2012163572A2 (fr) 2012-12-06
WO2012163572A3 WO2012163572A3 (fr) 2013-07-25

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WO (1) WO2012163572A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013208338A1 (de) * 2013-05-07 2014-11-13 Robert Bosch Gmbh Antriebssystem mit Energiespeichereinrichtung und Transversalflussmaschine und Verfahren zum Betreiben einer Transversalflussmaschine
DE102013208583A1 (de) * 2013-05-08 2014-11-13 Robert Bosch Gmbh Antriebsbatterie für den n-phasigen Betrieb eines Elektromotors sowie ein Antriebssystem und ein Verfahren zum Betrieb des Antriebssystems
DE102013211094A1 (de) * 2013-06-14 2014-12-18 Robert Bosch Gmbh Energiespeichermodul für eine Energiespeichereinrichtung und Energiespeichereinrichtung mit solchem

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5642275A (en) 1995-09-14 1997-06-24 Lockheed Martin Energy System, Inc. Multilevel cascade voltage source inverter with seperate DC sources

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010284029A (ja) * 2009-06-05 2010-12-16 Aisin Aw Co Ltd インバータ駆動用電源回路

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5642275A (en) 1995-09-14 1997-06-24 Lockheed Martin Energy System, Inc. Multilevel cascade voltage source inverter with seperate DC sources

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DE102011076571A1 (de) 2012-11-29
WO2012163572A3 (fr) 2013-07-25

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