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
  • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
• • 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
  • H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
• • 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
  • H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
  • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
  • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
  • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
  • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
  • H02M7/483—Converters with outputs that each can have more than two voltages levels
  • H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
• • 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
  • H02P27/08—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 with pulse width modulation
  • H02P27/14—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 with pulse width modulation with three or more levels of voltage

Definitions

• the invention relates to a drive device and a method for charging an electrical energy store.
• the publication DE 3 612 906 A1 describes a power supply for the transformerless conversion of a mains AC voltage in at least one DC voltage with at least one rectifier circuit, wherein at least one of the rectified AC mains voltage supplied energy storage device, which includes the series connection of the winding of a choke and a capacitor, via a rectifier or a Zener diode is connected to an output of the rectifier circuit.
• the document DE 195 235 76 A1 describes an AC voltage
• the AC voltage DC power supply described therein has a semiconductor switch which is mounted on the low voltage side of the flyback converter with a lower breakdown voltage.
• the lower breakdown voltage can be achieved by means of a shunt regulator, which regulates a clamping voltage on the low-voltage switch side.
• FIG. 10 shows an exemplary representation of an electrical drive with battery, intermediate circuit, converter and motor.
• An inverter UMR1 generates from the battery voltage of a battery BR1 a rotating field for a motor M.
• the battery BR1 comprises statically or variably interconnected cells Z1 -Z2.
• the inverter UMR1 is passive in the state of charge.
• FIG. 11 shows an exemplary illustration of a charging device.
• the charger includes a line filter B1, a diode rectifier B2, a power factor correction filter B3, a first voltage intermediate circuit B4, a transformer bridge circuit B5, a second voltage intermediate circuit B6 and an output B7.
• the present invention provides a drive device for charging an electrical energy storage device comprising: a network filter device which is designed to limit electrical interference of an input AC voltage; a mains rectifier circuit means coupled to the mains filter means and adapted to convert the AC input voltage into a rectified input voltage; a full bridge device coupled to the power rectifier circuit means and configured to convert the rectified input voltage into a high frequency AC voltage; a transformer device coupled to the full bridge device and configured to convert the high frequency AC voltage into a transformed AC voltage; a rectifier circuit means coupled to the transformer means and adapted to convert the transformed AC voltage to a rectified output voltage; and an output choke coupled to the rectifier circuit means and configured to filter the rectified output voltage to thereby charge the electrical energy storage.
• the present invention provides a method for charging an electrical energy storage, comprising the following method steps: converting an input AC voltage into a rectified input voltage and converting the rectified input voltage into a high-frequency AC voltage; Transforming the high frequency AC voltage into a transformed AC voltage and converting the transformed AC voltage to a rectified output voltage; and filtering the rectified output voltage.
• said invention offers the advantage that neither the rectified mains voltage, nor the rectified output voltage must be smoothed.
• the charging current is controlled so that the charging current follows the input voltage.
• the present invention offers cost and space advantages over a normal charger.
• the elimination of these large capacitors also results in an advantage in the life of the drive device.
• the transformer device is used for galvanic isolation and sets by its transmission ratio, the voltage according to the requirements.
• the output voltage of the transformer device is subsequently rectified.
• the output choke is used for decoupling to direct converter, English "direct converter” short DICO or the decoupling to the direct inverter, English “direct inverter”, short DINV.
• An idea of the present invention is that the charging current of the energy storage is adjusted by the counter voltage of the direct inverter or the direct converter accordingly.
• the network filter device is designed as a low-pass filter. This advantageously allows to limit both electrical disturbances of electronic devices into the power supply network and electrical disturbances from the power supply network to the electronic devices.
• the power rectifier circuit device is designed as an uncontrolled rectifier with a plurality of semiconductor diodes.
• the full bridge device is formed as a bridge circuit.
• the transformer device as a toroidal transformer or is designed as a planar transformer or as another transformer. This allows a space-saving integration of the transformer device.
• the rectifier circuit device is designed as an uncontrolled rectifier with a plurality of semiconductor diodes. This advantageously allows to accomplish the rectification of the output voltage cost-effective and to achieve a reduction of the filter effort.
• the output throttle device is designed as an air coil or as another coil. This advantageously allows to achieve filtering of the output voltage.
• FIG. 1 is a schematic representation of a drive device for charging an electrical energy store according to an embodiment of the invention
• 2 shows a schematic representation of a diagram of a temporal voltage curve of an input voltage according to a further embodiment of the invention
• FIG. 3 shows a schematic representation of a diagram of a temporal voltage profile of a rectified input voltage according to a further embodiment of the invention
• FIG. 4 shows a schematic representation of a diagram of a temporal voltage curve of a high-frequency AC voltage according to a further embodiment of the invention
• FIG. 5 shows a schematic representation of a diagram of a temporal voltage curve of a rectified output voltage according to a further embodiment of the invention
• FIG. 6 shows a schematic representation of a diagram of a temporal current profile of a charging current according to a further embodiment of the invention
• FIG. 7 shows a schematic representation of a diagram of a time profile of a countervoltage according to a further embodiment of the invention.
• FIG. 8 shows a schematic representation of an integrated inverter with a direct converter according to a further embodiment of the invention
• 9 is a schematic representation of a flowchart of a method for charging an electrical energy store according to an embodiment of the invention
• FIG. 10 shows an exemplary illustration of an electrical output with battery, intermediate circuit, converter and motor
• Fig. 1 1 is an exemplary illustration of a charger.
• a drive device 100 for charging an electrical energy store T5 comprises a network filter device T1, a mains rectifier circuit device T2, a full bridge device T3, a transformer device TRF1, a rectifier circuit device T4 and an output choke device DL1.
• the network filter device T1 in the present embodiment comprises a network filter N1.
• the network filter device T1 is designed, for example, to limit electrical interference of an input AC voltage U1.
• the network filter device T1 can limit both electrical interference from electronic devices in the power supply network and electrical interference from the power supply network in the electronic devices.
• the power rectifier circuit device T2 is in the present case designed as an uncontrolled rectifier with a plurality of semiconductor diodes HL1-HL4. Furthermore, the network rectifier circuit device T2 is designed, for example, to convert the input AC voltage U1 into a rectified input voltage U2.
• the full-bridge device T3 is designed, for example, as a bridge circuit and comprises a plurality of field-effect transistors FET1-FET4. In this case, other transistors of any type can be used instead of the field effect transistors FET1 - FET4.
• the transformer device TRF1 is designed, for example, to convert the high-frequency AC voltage U3 into a transformed AC voltage U4.
• the transformer device TRF1 is designed, for example, as a toroidal transformer or as a planar transformer.
• the rectifier circuit device T4 is designed to convert the transformed AC voltage U4 into a rectified output voltage U5.
• the rectifier circuit device T4 in the present embodiment includes a plurality of semiconductor diodes HL5-HL8.
• the output throttle DL1 is designed, for example, the
• the electrical energy store T5 comprises at least one cell module Z1 -Zn.
• the direct converter of the electrical energy store T5 actively switches a specific number of cell modules Z1 -Zn as a function of a charging voltage U6 applied to the electrical energy store T5 in order to generate a countervoltage U7 advantageous for charging the electrical energy store in accordance with the charging voltage U6.
• a charging voltage U6 63.3 V
• three cell modules Z1-Z3 are connected in series internally, each cell module having a cell voltage of 20 V.
• an applied charging voltage U6 of 43.3 V two cell modules Z1 -Z3 are connected internally in series.
• the direct converter can switch the cell modules Z1-Zn on and off in a predetermined sequence in order to ensure uniform charging of the electrical energy store T5.
• the switching operations of the direct converter can take place within time periods in the milli or microsecond range.
• the electrical energy storage T5 is, for example, as a cell module composite with a plurality of lithium-ion accumulators, capacitors, lithium polymer accumulators, lithium titanate accumulators, lithium manganese accumulators or lithium iron phosphate accumulators or with formed a plurality of other accumulators or electrical energy storage.
• FIG. 2 shows a schematic representation of a diagram of a temporal voltage curve of an input voltage according to another embodiment of the invention.
• the ordinate axis of the time diagram shown in Figure 2 represents the amplitude of the input AC voltage U1 in the unit volts, on the abscissa axis, the time t is plotted.
• a voltage characteristic curve SK1 is shown in the diagram shown in FIG. 2 and represents the time profile of the input AC voltage U1.
• FIG. 3 shows a schematic representation of a diagram of a temporal voltage curve of a rectified input voltage according to another embodiment of the invention.
• the ordinate axis of the time diagram shown in FIG. 3 represents the amplitude of the rectified input voltage in the unit volt, and the time t is plotted on the abscissa axis.
• a voltage characteristic curve SK2 is shown in the diagram shown in FIG. 3 and represents the time profile of the rectified input voltage U2.
• 4 shows a schematic representation of a diagram of a temporal voltage curve of a high-frequency AC voltage according to another embodiment of the invention.
• the ordinate axis of the timing diagram shown in FIG. 4 represents the amplitude of a high-frequency alternating voltage U3 in the unit volt, the time t is plotted on the abscissa axis.
• a voltage characteristic curve SK3 is shown in the diagram shown in FIG. 4 and represents the time profile of the high-frequency AC voltage U3.
• FIG. 5 shows a schematic representation of a diagram of a temporal voltage curve of a rectified output voltage according to a further embodiment of the invention.
• the ordinate axis of the timing diagram shown in FIG. 5 represents the amplitude of a rectified output voltage U5 in the unit volt, the time t is plotted on the abscissa axis.
• a voltage characteristic curve SK4 is shown in the diagram shown in FIG. 5 and represents the time course rectified output voltage U5.
• FIG. 6 shows a schematic representation of a diagram of a temporal current profile of a charging current according to another embodiment of the invention.
• the ordinate axis of the time diagram shown in FIG. 6 represents the amplitude of a charging current in the unit A, the time t is plotted on the abscissa axis.
• a current characteristic IK1 is shown in the diagram shown in FIG. 5 and represents the time profile of a charging current 11 corresponding to the rectified output voltage U5.
• FIG. 7 shows a schematic representation of a diagram of a temporal voltage curve of a reverse voltage according to a further embodiment of the invention.
• the ordinate axis of the time diagram shown in FIG. 7 represents the amplitude of a countervoltage U7 in the unit volt, the time t is plotted on the abscissa axis.
• a voltage characteristic curve SK5 is shown in the diagram shown in FIG. 7 and represents the time profile of the countervoltage U7.
• FIG. 8 shows a schematic representation of an integrated inverter with a direct converter according to a further embodiment of the invention.
• the integrated inverter DICO allows a direct converter to directly generate the rotating field with a predetermined amplitude and a predetermined frequency for the motor.
• the concept of the integrated DICO inverter generates a variable DC link voltage.
• These concepts also require a charging circuit, such as the driving device 100 for charging the electrical energy storage T5.
• FIG. 9 shows a schematic representation of a flow diagram of a method for charging an electrical energy store according to an embodiment of the invention.
• the method for charging the electrical energy store T5 with a direct converter is carried out, for example, by the drive device 100.
• a conversion S1 of an input AC voltage U1 into a rectified input voltage U2 and a conversion of the rectified input voltage U2 into a high-frequency AC voltage U3 takes place.
• a transformation S2 of the high-frequency AC voltage U3 into a transformed AC voltage U4 and a conversion of the transformed AC voltage U4 to a rectified output voltage U5 takes place.

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• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)
• Rectifiers (AREA)
• Dc-Dc Converters (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=48794060

Family Applications (1)

Country Status (5)

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Family Cites Families (18)

• 2012
  • 2012-07-13 DE DE102012212262.1A patent/DE102012212262A1/de not_active Withdrawn
• 2013
  • 2013-07-04 JP JP2015520919A patent/JP2015523845A/ja active Pending
  • 2013-07-04 US US14/413,951 patent/US20150180344A1/en not_active Abandoned
  • 2013-07-04 EP EP13737567.1A patent/EP2872357A1/de not_active Withdrawn
  • 2013-07-04 WO PCT/EP2013/064160 patent/WO2014009254A1/de active Application Filing

Non-Patent Citations (1)

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