WO2012163661A1 - Circuiterie et procédé pour faire fonctionner un système d'accumulateurs d'énergie, en particulier de batteries - Google Patents

Circuiterie et procédé pour faire fonctionner un système d'accumulateurs d'énergie, en particulier de batteries Download PDF

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Publication number
WO2012163661A1
WO2012163661A1 PCT/EP2012/058916 EP2012058916W WO2012163661A1 WO 2012163661 A1 WO2012163661 A1 WO 2012163661A1 EP 2012058916 W EP2012058916 W EP 2012058916W WO 2012163661 A1 WO2012163661 A1 WO 2012163661A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
bat2
switch
vbatl
batl
Prior art date
Application number
PCT/EP2012/058916
Other languages
German (de)
English (en)
Inventor
Martin Mayer
Alexander Costa
Original Assignee
Ams Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ams Ag filed Critical Ams Ag
Publication of WO2012163661A1 publication Critical patent/WO2012163661A1/fr

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Classifications

    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter

Definitions

  • the present invention relates to a circuit arrangement and a method for operating an arrangement of energy storage devices, in particular of batteries.
  • power is usually provided by batteries or rechargeable batteries.
  • possible battery voltages are in different areas.
  • an electronic power management unit in the form of an integrated circuit which provides all the voltages and currents required for the system in the appropriate accuracy.
  • Switching converters or even linear voltage regulators are used for this purpose, with switching converters having the advantage of working with very good efficiency.
  • a circuit arrangement for operating an arrangement of energy stores, in particular of batteries comprises a voltage converter.
  • a switch assembly is provided which has a first terminal for connecting a first energy store and a second terminal for connecting a second energy store on ⁇ .
  • a selector is provided, which is connected to the first and second terminals.
  • first and second energy stores are connected to the first and second terminals.
  • the selector is set up to measure a first voltage at the first terminal and a second voltage at the second terminal.
  • the selector has suitable components, such as a comparator or logic, to compare the first and second voltages with each other or with a reference. Depending on this comparison, the selector controls the
  • the switch arrangement such that the first or second energy ⁇ memory or both are connected electrically conductively connected to the voltage converter.
  • the switch arrangement preferably comprises controllable, low-resistance switches.
  • two or more batteries can be used individually or simultaneously, so that the connected voltage converter can be operated with a high efficiency.
  • DC-DC converter The lower the difference between their input and output voltage, the more efficient the more efficient they are.
  • the first or second energy store is only used as a current source until it becomes more efficient as a result of the incoming discharge to switch to the respective other energy store.
  • the sum of first and second voltage is compared with a desired output voltage. The unloading of the two memories is thus alternately, in a sense as a balanced discharge.
  • the presented circuit arrangement can efficiently drive and supply voltage to both up and down converters.
  • a special buck-boost converter can be omitted, which makes the circuit particularly cost-effective.
  • the circuit arrangement can be operated in a serial and in a parallel operating mode.
  • the switch arrangement is controlled by the selector such that in the parallel operating mode alternately the first or the second energy store ⁇ electrically connected to the voltage converter. that is. In the serial operating mode, the switch arrangement connects the first and the second energy store in an electrically conductive manner to the voltage converter.
  • the selector is able to switch between serial and parallel modes of operation, choosing the most efficient configuration for operating the energy storage devices. Due to non-linear effects, high continuous load currents reduce the capacity of batteries. An operating alternately by means of the selector helps to avoid a continuous load, and also to use a ceremoniessef ⁇ fect (recovery) of the batteries. Batteries recover to some extent if they are not charged for a while.
  • the first or the second energy store is connected to the voltage converter.
  • the voltage is a measure of the discharge of the energy storage used. By using the higher of the voltages, unnecessary no-load voltages can be avoided and high efficiency of the voltage supply of the voltage converter can be ensured.
  • first or the second energy store may also be necessary to connect the first or the second energy store to the voltage converter as a function of the respectively smaller first or second voltage.
  • the selector controls the switch assembly in the serial mode of operation as long as the Sum of the first and second voltages is less than a threshold.
  • One possible threshold is the desired output voltage of the circuitry as provided by the voltage converter at an output. If the sum of the first and the second voltage is less than the desired output voltage is thus switched to the serial operating mode.
  • the selector is arranged to perform the measurement and comparison continuously or periodically. Due to the continuous or periodic monitoring of the two operating states, the batteries or energy storage are constantly monitored, so that always the most favorable ⁇ th configuration is selected. In this way, the selector is arranged to perform the measurement and comparison continuously or periodically. Due to the continuous or periodic monitoring of the two operating states, the batteries or energy storage are constantly monitored, so that always the most favorable ⁇ th configuration is selected. In this way, the
  • DC-DC converters are operated with particularly good efficiency. It is also possible to detect during monitoring whether an energy store is taken and to switch without interruption to the remaining energy store. The device will not be aborted and data will be retained. Furthermore, in this way the energy storage can be monitored for deep discharge and taken out of the circuit as needed.
  • the switch arrangement comprises a first, second and third switch.
  • the switches are preferably as integrated low-resistance switches or
  • the switches can be high impedance to avoid a short circuit.
  • the first switch couples the first terminal for Connecting ⁇ SEN of the first energy storage device to the second terminal for connecting the second energy storage device. Further, the ers ⁇ th switch is connected to the voltage converter.
  • the second switch couples the second terminal for connecting the second energy store to a ground potential.
  • the drit ⁇ te switch couples a third port for connecting the second energy storage device to the first terminal for at ⁇ close the first energy store and to the first switch.
  • the first terminal of the first energy storage means ei ⁇ nes first pole is connected.
  • the second energy store can be connected by means of its first pole.
  • a second pole of the second energy store can be connected to the third connection.
  • the circuit arrangement comprises a fourth switch, wherein the fourth switch couples the first switch to the second connection for connecting the second energy store and is connected to the voltage converter.
  • the first energy store is rather only means of which the first pole of the switch assembly and by a second pole sepotential connectable only with the Mas ⁇ .
  • the second energy store can be connected to the switch arrangement by means of its first and second poles.
  • the selector comprises a comparator circuit.
  • the comparator circuit is set up to control the switch arrangement such that switching of the switch arrangement takes place according to a hysteresis.
  • the voltage converter comprises a boost converter or a down converter.
  • a boost converter or a buck wall ⁇ toddlers does not change the presented basic principle. Adjustments in comparison of the first and second voltage are necessary. Thus, in the parallel operating mode with respective higher or lower voltage of the respective energy storage is selected. Likewise, is changed, for example, in the serial Be ⁇ operating mode when the sum of first and second voltage is greater than the threshold.
  • a first voltage is initially connected to a first terminal for connecting a first energy store and a second store. voltage at a second terminal for connecting a second energy storage measured. The first voltage is compared with the second voltage.
  • the first and / or second energy store is selected by connecting the first or second energy store or both together in an electrically conductive manner to a voltage converter for its voltage supply.
  • two or more batteries can be used individually or simultaneously, so that the connected voltage converter can be operated with a high efficiency.
  • DC-DC converters usually work more efficiently the smaller the difference between their input and output voltages.
  • Energy storage is only used as a power source until it becomes more efficient due to the incoming discharge to switch to the other energy storage.
  • the comparison takes place, for example, as a sum of first and second voltage with a desired output voltage.
  • the discharge of the two energy storage thus takes place alternately, so that this type balanced discharge of life ⁇ life and capacity of energy storage can benefit. Furthermore, it is possible to connect both energy stores together in an electrically conductive manner with the voltage converter and thus to further improve the efficiency of the voltage converter.
  • the comparison of the first and second voltage can also take into account a possible depth discharge of one of the energy storage and counteract this.
  • the presented method can control both upward as downward ⁇ converter in an efficient way and isolated from the voltage ensure supply.
  • a special and expensive buck-boost converter can be omitted.
  • a serial operating mode or a parallel operating mode is activated as a function of the comparison of the first voltage with the second voltage.
  • selecting the first or second power ⁇ memory is such that in the parallel mode of operation changes, the first or the second energy accumulator is electrically connected to the voltage converter.
  • the first and second Ener ⁇ gie are together electrically conductively connected to the voltage converter.
  • the system switches between the serial and parallel operating modes and, in so doing, selects the most efficient configuration for operating the energy stores. It is known that due to non-linear effects Anlagenmens- high continuous load currents as in batteries, the capacity verrin ⁇ like. An alternating operation helps to avoid a long-term load and also to use a recovery effect (recovery) of the energy storage. Batteries recover in a sense, if they are not charged for a while.
  • the first or the second energy store is connected to the voltage converter in the parallel operating mode as a function of the respective higher or lower of the first or the second voltage.
  • the serial mode of operation is activated when the sum of the first and second voltages is less than or greater than one
  • Threshold is.
  • the measuring and comparing is performed continuously or periodically.
  • the batteries or energy storage are constantly monitored, so that always the most favorable ⁇ th configuration is selected. In this way, the batteries or energy storage are constantly monitored, so that always the most favorable ⁇ th configuration is selected. In this way, the batteries or energy storage are constantly monitored, so that always the most favorable ⁇ th configuration is selected. In this way, the batteries or energy storage are constantly monitored, so that always the most favorable ⁇ th configuration is selected. In this way, the batteries or energy storage are constantly monitored, so that always the most favorable ⁇ th configuration is selected. In this way, the
  • DC-DC converter are operated with high efficiency. It is also possible to detect in the monitoring whether an energy storage is removed and to switch without interruption to the remaining energy storage. The device will not be aborted and data will be retained. Furthermore, in this way the energy storage can be monitored for deep discharge and demand can be taken out of the circuit.
  • FIG. 1 shows an exemplary embodiment of a circuit arrangement for operating an arrangement of energy stores according to the proposed principle
  • Figure 2 shows another exemplary embodiment of a
  • FIG. 1 shows an exemplary embodiment of a scarf ⁇ processing arrangement for operating an arrangement of energy storage, in this case of batteries.
  • the circuitry is preferably integrated, has a DC converter ⁇ DCDC and a switch assembly comprising an ERS th, second and third switches SW1, SW2, SW3. Furthermore, a selector Slct is provided which is set up to control the circuit arrangement or the first, second and third switches SW1, SW2, SW3.
  • the DC-DC converter DCDC is coupled by means of the first switch SW1 to a first connection for an energy store N_VBatl.
  • the DC-DC converter DCDC is connected to a second terminal for connecting a second energy store N_VBat2P.
  • the second switch SW2 couples a ground potential GND to a third terminal for connecting the second energy storage N_VBat2N.
  • This third connection N_VBat2N is also by means of the third
  • Switch SW3 connected to the first switch SW1 and the first terminal N_VBatl.
  • the selector Slct is connected to voltage measurement lines to the terminals N_VBatl, N_VBat2N, N_VBat2P and has suitable means such as comparators or measurement logic to measure voltages at the terminals N_VBatl, N_VBat2N, N_VBat2P.
  • the batteries Batl, Bat2 are connected by means of their poles to the circuit arrangement, wherein the first battery Batl only with a first pole Pia at the first connection
  • N_VBatl is connected. With a second pole Plb, the first battery Batl is connected to the ground potential GND.
  • the second battery Bat2 is connected both to a first and to a second pole P2a, P2b on the second or third terminal N_VBat2P, N_VBat2N to the circuit arrangement.
  • the DC-DC converter DCDC is executed in this example in the manner of an upward or boost converter and ver ⁇ switches.
  • the DC-DC converter DCDC a switchable inductor LX and a capacitance C, which are sorted ⁇ wells connected to a power supply input VDD, the inductor LX is coupled to an output VOUT of the Wegungsan- order.
  • the DC-DC converter DCDC is connected to the output VOUT by means of a resistive loop FB.
  • the DC-DC converter DCDC controls switches of the switchable inductance LX and thus adjusts an output voltage at the output VOUT as a function of a supply voltage VDD.
  • the circuit ensures a power supply in this case too, and data from a connected device are retained. Furthermore, the selector is set up to monitor the batteries Batl, Bat2 for deep discharge and to remove it from the circuit when necessary.
  • FIG. 2 shows a further circuit arrangement according to the proposed principle.
  • a fourth switch SW4 is provided in addition to the first to third switches SW1, SW2, SW3 shown in FIG. 1, a fourth switch SW4 is provided. This couples the DC-DC converter DCDC to the second terminal N_VBAT2P for a second energy store. With this configuration, it is easier to monitor the state of the first and second energy storage and unfavorable voltage potentials to vermei ⁇ . Compared to the solution of FIG. 1, a little more area is required and the efficiency is somewhat reduced.
  • DC-DC converter DCDC may employ a buck or buck converter instead of a buck or boost converter. This is especially true for applications with voltage ranges of
  • VOUT ⁇ VBat on new batteries and VOUT ⁇ 2VBat on discharged batteries As long as the batteries are new, they can be used individually to operate in series in serially operating mode.
  • the circuit arrangement is also operated in a serial and parallel operating mode ser, par. Possible scarf ⁇ ter einen the switches SW1, SW2, SW3, SW4 in these areas operating modes are shown in the table in Figure 2.
  • the voltage curve that occurs in each case is explained in conjunction with FIGS . 3 to 7.
  • Figures 3 to 7 show, respectively, characteristic clamping voltage ⁇ gradients of the circuits of Figures 1 and 2 according to the proposed principle.
  • FIG. 3 shows an exemplary voltage profile in the parallel operating mode par the circuit arrangement according to FIG. 1 or 2. Shown in each case are a graph for the first voltage Vbatl, the second voltage Vbat2 and the supply voltage VDD of the DC-DC converter DCDC are plotted against the time t. In addition, corresponding first and second currents Ibatl, Ibat2 are shown.
  • the selector Slct allows a balanced discharge by connecting the two batteries Batl, Bat2 alternately to the DC-DC converter DCDC by means of the switches SW1 to SW3 and SW4, respectively. This benefits in particular the life of the batteries. As soon as possible, both batteries are connected in series, further improving the efficiency of the boost converter.
  • the selector Slct switched on for ⁇ the first to third switches SWl, SW2, SW3 or SW4 in the fourth Schlater serial and parallel operating state ser, par, both operating states are fortlau ⁇ monitored continually by the selector Slct. Due to the ⁇ ser monitoring, it is possible to choose the most favorable Configu ⁇ ration of the batteries.
  • the selector Slct can have a comparator circuit which is set up to control the switches SW1, SW2, S3 and / or SW4 in such a manner that switching of the switch arrangement takes place in accordance with a hysteresis.
  • Figure 4 shows to an exemplary voltage curve for symmetrical
  • Figure 5 is an asymmetric HystE ⁇ rese Vhystl, Vhyst2.
  • the voltage on switching to one of the batteries Batl, Bat2 often breaks slightly. It can come to a constant back and forth between the batteries Batl, Bat2. This is prevented by the first and second voltage Vbatl, Vbat2 a suitable Hysteresebetrag Vhystl, Vhyst2 aufschl ⁇ and switched only taking into account these amounts. This can be done symmetrically or asymmetrically by varying the respective amounts for toggling.
  • the switch SW1, SW2, SW3, SW4 perform high impedance.
  • the capacitor of the DC-DC converter on the supply VDD ⁇ input causes the supply voltage drops during the switching between the batteries Batl, Bat2 not for a short time at low values.
  • it serves as the input capacitance of the DC-DC converter and is dimensioned accordingly.
  • N_Vbatl N_Vbat2N
  • N_Vbat2P Battalion, Bat2 at the inputs N_Vbatl, N_Vbat2N, N_Vbat2P can also help to avoid short-term disturbances such as voltage ⁇ pointed at the inputs that could lead to unwanted switching.
  • FIG. 6 shows an exemplary voltage profile in the serial and parallel operating modes, according to a circuit arrangement according to FIGS. 1 or 2.
  • the graphs each show a graph for the first voltage Vbatl and the second voltage Vbat2 as well as the supply voltage VDD of the DC-DC converter DCDC apply against time t.
  • the respective left part shows the parallel operating mode par and the alternating switching to one of the two batteries Batl, Bat2 depending on their respective state of charge.
  • Vthr ⁇ it is sufficient, in the serial mode of operation ser maral ⁇ tet.
  • the batteries Batl, Bat2 are connected in series in the serial operating mode, so that the sum of the first and second voltages Vbatl + Vbat2 is applied to the DC-DC converter DCDC to be led.
  • a threshold value it is advisable in this case to compare the sum Vbatl + Vbat2 with the desired output voltage Vout. If the condition for the switching on of the serial operating mode is reached ser, then no longer connected between the batteries Batl, Bat2 and the supply voltage VDD results from the series connection of both batteries. This is indicated in the lower graph as a jump.
  • the series connection is the most efficient configuration for operating the DC-DC converter DCDC.
  • FIG. 7 shows an exemplary voltage curve of a
  • the third operating mode 100 may be provided. Utilizing a suitable tolerance of the output voltage Vout of the boost converter latter in the third Be ⁇ operation mode 100, or so-called 100% mode is switched. It applies
  • Voutmin ⁇ Vbatl + Vbat2 ⁇ Voutmax Voutmin ⁇ Vbatl + Vbat2 ⁇ Voutmax, where Voutmin, Voutmax indicate a lower and upper tolerance limit for the output voltage Vout.
  • the procedure of the selector Slct changes with respect to the comparison of the first and second voltage Vbatl, Vbat2, but not the proposed basic principle.
  • the serial mode ser we switched to the serial mode ser and used the remaining charge in the two batteries Vbatl + Vbat2.

Abstract

L'invention concerne une circuiterie pour faire fonctionner un système d'accumulateurs d'énergie, en particulier de batteries, qui comprend un convertisseur de tension (DCDC), un ensemble de commutateurs (SW1, SW2, SW3) et un sélecteur (Slct). L'ensemble de commutateurs (SW1, SW2, SW3) présente une première borne (N_VBat1) à raccorder un premier accumulateur d'énergie (Bat1) et une deuxième borne (N_VBat2N, N_VBatP) à raccorder un deuxième accumulateur d'énergie (Bat2) et reliées à un convertisseur de tension (DCDC) pour l'alimentation en tension. Le sélecteur (Slct) est conçu pour mesurer une première tension (Vbat1) à la première borne N_VBat1) et pour mesurer une deuxième tension (Vbat2) à la deuxième borne (N_VBat2N, N_VBatP). En fonction d'une comparaison de la première et de la deuxième tension (Vbat1, VBat2), le sélecteur (Slct) commande l'ensemble de commutateurs (SW1, SW2, SW3) de telle manière que le premier ou le deuxième accumulateur d'énergie (Bat1, Bat2) ou les deux soient reliés conjointement de manière électroconductrice au convertisseur de tension (DCDC). L'invention concerne également un procédé pour faire fonctionner un système d'accumulateurs d'énergie.
PCT/EP2012/058916 2011-05-27 2012-05-14 Circuiterie et procédé pour faire fonctionner un système d'accumulateurs d'énergie, en particulier de batteries WO2012163661A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011102587A DE102011102587A1 (de) 2011-05-27 2011-05-27 Schaltungsanordnung und Verfahren zum Betreiben einer Anordnung von Energiespeichern,insbesondere von Batterien
DE102011102587.5 2011-05-27

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WO2012163661A1 true WO2012163661A1 (fr) 2012-12-06

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PCT/EP2012/058916 WO2012163661A1 (fr) 2011-05-27 2012-05-14 Circuiterie et procédé pour faire fonctionner un système d'accumulateurs d'énergie, en particulier de batteries

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DE (1) DE102011102587A1 (fr)
WO (1) WO2012163661A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10110023B2 (en) 2015-04-24 2018-10-23 Manodya Limited Power supply system
US10594150B2 (en) 2015-04-24 2020-03-17 Manodya Limited Pulse discharge system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0609101A1 (fr) * 1993-01-29 1994-08-03 Canon Kabushiki Kaisha Dispositif d'accumulation d'énergie électrique et système électrique de puissance
US6268711B1 (en) * 1999-05-05 2001-07-31 Texas Instruments Incorporated Battery manager
US20080054870A1 (en) * 2006-09-05 2008-03-06 Nissan Motor Co., Ltd. Power supply system and power supply system control method
JP2008131830A (ja) * 2006-11-24 2008-06-05 Nissan Motor Co Ltd 車両の電力供給装置
US20090134851A1 (en) * 2005-10-19 2009-05-28 Harumi Takeda Electric power storage system using capacitors and control method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121046A (en) * 1991-07-15 1992-06-09 Eagle Research Corporation Automatic series/parallel battery connecting arrangement
JP2959657B2 (ja) * 1993-05-13 1999-10-06 キヤノン株式会社 電子機器
US20100213897A1 (en) * 2009-02-23 2010-08-26 Lawrence Tze-Leung Tse Battery-Cell Converter Management Systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0609101A1 (fr) * 1993-01-29 1994-08-03 Canon Kabushiki Kaisha Dispositif d'accumulation d'énergie électrique et système électrique de puissance
US6268711B1 (en) * 1999-05-05 2001-07-31 Texas Instruments Incorporated Battery manager
US20090134851A1 (en) * 2005-10-19 2009-05-28 Harumi Takeda Electric power storage system using capacitors and control method thereof
US20080054870A1 (en) * 2006-09-05 2008-03-06 Nissan Motor Co., Ltd. Power supply system and power supply system control method
JP2008131830A (ja) * 2006-11-24 2008-06-05 Nissan Motor Co Ltd 車両の電力供給装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10110023B2 (en) 2015-04-24 2018-10-23 Manodya Limited Power supply system
US10594150B2 (en) 2015-04-24 2020-03-17 Manodya Limited Pulse discharge system

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