EP3891878A1 - Dispositif de commutation pour la réduction de perturbations de synchronisme d'un convertisseur - Google Patents

Dispositif de commutation pour la réduction de perturbations de synchronisme d'un convertisseur

Info

Publication number
EP3891878A1
EP3891878A1 EP19786557.9A EP19786557A EP3891878A1 EP 3891878 A1 EP3891878 A1 EP 3891878A1 EP 19786557 A EP19786557 A EP 19786557A EP 3891878 A1 EP3891878 A1 EP 3891878A1
Authority
EP
European Patent Office
Prior art keywords
additional line
circuit device
common mode
converter
resistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19786557.9A
Other languages
German (de)
English (en)
Inventor
Guido Albert Rasek
Illia Manushyn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
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 EP3891878A1 publication Critical patent/EP3891878A1/fr
Pending legal-status Critical Current

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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • 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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H02M1/123—Suppression of common mode voltage or current
    • 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
    • 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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
    • 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
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
    • 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
    • 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
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/14—Emission reduction of noise
    • B60L2270/147—Emission reduction of noise electro magnetic [EMI]
    • 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
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • 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
    • H02M1/0064—Magnetic structures combining different functions, e.g. storage, filtering or transformation
    • 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
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
    • H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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

Definitions

  • Circuit device for reducing common mode interference in a converter
  • the invention relates to a circuit device for reducing common mode interference of a converter. Furthermore, the invention relates to a power electronic system with a corresponding circuit device and an electrical vehicle with a power electronic system.
  • the invention relates to a circuit device for reducing common-mode interference conditions of a converter, the converter forming a common-mode interference source during operation.
  • the circuit device comprises at least one short-circuited connection set line, which can be coupled to an input and an output of the converter.
  • the additional line carries the interference currents generated by the common mode interference source and leads them back to the common mode interference source.
  • a circuit device for reducing common-mode interference in a converter, the converter forming a common-mode interference source during operation.
  • Power converters for converting AC to DC are called rectifiers.
  • Inverters convert direct to alternating current. Inverters are used to convert one type of alternating current to another; for example, the frequency converter is used to change an AC frequency.
  • DC-DC converters convert a first DC voltage into a second DC voltage, which can be higher, lower or inverted. The conversion is generally carried out with the aid of electronic components based on semiconductors - for example with diodes, transistors or thyristors, in particular using MOSFETs, IGBTs and IGCTs. In the past, vacuum tubes, mercury vapor rectifiers and thyratrons were also used. Capacitors or inductors are often used as energy intermediate storage devices in the devices.
  • the converter is preferably a voltage converter, DC voltage converter, inverter or current converter.
  • the converter is preferably a combination of at least one or more series or parallel DC voltage converters, inverters and / or converters.
  • the converter preferably has a different number of input and output lines.
  • the converter preferably comprises passive components, preferably diodes, or active components, preferably semiconductor switching elements.
  • the circuit device comprises at least one short-circuited additional line which can be coupled to an input and an output of the converter.
  • a short-circuited additional line is preferably a ring line in which a current, in particular the interference current generated by the common-mode interference source, can be circulated.
  • connectable means that the additional line can preferably be connected inductively, for example by means of a common choke, capacitively or galvanically in a conductive manner to the input and the output of the converter.
  • the input of a converter preferably comprises a first and a second input line.
  • the output of a converter preferably comprises a plurality of output lines on the output side.
  • the converter is preferably an inverter.
  • the input of an inverter preferably comprises a first and a second DC voltage line as input lines.
  • the output of an inverter preferably comprises several phases or phase lines, preferably three phases, on the output side as output lines on the AC voltage side, for example for supplying an electrical machine.
  • the short-circuited additional line carries the interference currents generated by the common mode interference source and leads them back to the common mode interference source.
  • the common mode interference source arises in particular during operation of the converter within the converter, in particular due to switching operations of the semiconductor switches, by means of which an input voltage is preferably converted into an output voltage by means of one or more half bridges by the switches of the at least one half bridge being opened and closed in a clocked manner.
  • the common mode interference source arises in particular within the inverter, in which an input DC voltage is preferably converted into a multi-phase output AC voltage by means of a B6 bridge, in which the switches of the B6 bridge are opened and closed in a clocked manner.
  • a circuit device is advantageously provided which absorbs the resulting interference currents and thus reduces the electromagnetic emission of the converter.
  • the circuit device comprises a first common mode choke through which the additional line is led.
  • the auxiliary line is preferably wound at least once, preferably ten times, around the first common mode choke.
  • the first common mode choke is preferably arranged on the input voltage side of the converter.
  • the circuit device comprises a first common mode choke through which the additional line is guided. This causes an inductive coupling to lines that are also routed through this common mode choke.
  • the additional line is wound around the first common mode choke at least once, preferably ten times.
  • the first common mode choke is preferably arranged on the input voltage side of the converter. This means that the additional line can be coupled to the input of the converter.
  • a circuit device is provided with an improved coupling, which absorbs the resulting interference currents and thus reduces the electromagnetic emission of the converter.
  • the circuit device comprises a second common mode choke through which the additional line is led.
  • the auxiliary line is preferably wound at least once, preferably ten times, around the second common mode choke.
  • the second common mode choke is preferably arranged on the output voltage side of the converter.
  • the circuit device comprises a second common mode choke through which the additional line is guided. This causes an inductive coupling to lines that are also routed through this common mode choke. To increase the inductive effect and thus reinforce the inductive coupling, the additional line is wound at least once, preferably ten times, around the second common mode choke.
  • the second common mode choke is preferably arranged on the output voltage side of the converter. This means that the additional line can be coupled to the output of the converter.
  • a circuit device with an improved coupling is advantageously provided, which absorbs the resulting interference currents and thus reduces the electromagnetic emission of the converter.
  • the additional line of the Wegungsvor direction is galvanically connectable to a reference conductor, or by means of a capacitor or a coil.
  • the additional line of the circuit device is galvanically ver with a reference conductor.
  • reference line is understood to mean a line to which a ground connection of a converter is connected.
  • the reference conductor is preferably galvanically connected to a protective conductor at only one point.
  • the reference conductor forms the common return conductor of individual electrical components to be connected and also carries current during the operation of the electrical components.
  • the reference conductor is preferably a common ground of an electrical system or a chassis, for example a vehicle, or the reference conductor is connected to this common ground or the chassis with low impedance.
  • the Protective conductor only leads a current in the event of a fault, for example in the event of a short circuit between a supply line and a housing of an electrical component, for example the converter, which is connected to the reference conductor.
  • a concept for increasing the operational reliability of the circuit device is advantageously provided.
  • the additional line of the circuit device comprises at least one damping component which minimizes the interference currents on the additional line.
  • the additional line of the circuit device comprises at least one damping component.
  • a damping component influences the interference current on the additional line.
  • the electrical energy of the interference current is preferably converted into thermal energy.
  • a circuit device is advantageously provided, which absorbs the resulting interference currents and thus reduces the electromagnetic emission of the converter.
  • the damping component comprises at least one resistor.
  • a resistor is used as the damping component, which converts the electrical energy of the interference current into thermal energy.
  • a Wennungsvor direction is advantageously provided, which absorbs the resulting interference currents and thus reduces the electromagnetic emission of the converter.
  • the damping component comprises a separation of the additional line into a first short-circuited additional line with a first resistor and a second short-circuited additional line with a second resistor.
  • the first short-circuited additional line can preferably be capacitively connected to a reference conductor by means of a first capacitor and or the second short-circuited additional line can be connected to a reference conductor by means of a second capacitor.
  • the damping component includes a separation of the additional line.
  • the interference current is prevented within the additional line from the input of the converter to flow to the exit and back. Instead, a first short-circuited additional line with a first resistor results on the input side and a second short-circuited additional line with a second resistor on the output side.
  • the resistors dampen the interference current in the first and second short-circuited additional lines. This dampens the common-mode currents at the input and output of the converter.
  • the first short-circuited additional line can preferably be capacitively connected to a reference conductor by means of a first capacitor and or the second short-circuited additional line can be connected by means of a second capacitor. A connection by means of a capacitor causes additional high-frequency damping.
  • An alternative circuit device is advantageously provided, which absorbs the resulting interference currents and thus reduces the electromagnetic emission of the converter.
  • the circuit device comprises an output-side capacitor and an output-side capacitor.
  • the additional line is designed as a short-circuited series circuit of the first common mode choke, a first resistor, the second common mode choke and a second resistor. Between the first resistor and the first common mode choke, the input-side capacitors for the input-side connection to the input lines of the converter are arranged and between the first resistor and the second common-mode choke, the output-side capacitors for the output-side connection to the output lines of the converter are arranged.
  • the first resistor is preferably very much larger than the second resistor; the values of the resistors preferably differ by a factor of 10.
  • the circuit device comprises capacitors on the input side and capacitors on the output side.
  • capacitors on the input side are capacitors which can be connected between an input line of the converter and the additional line.
  • capacitors on the output side are capacitors which can be connected between an output line of the converter and the additional line.
  • the additional line is designed as a short-circuited series circuit of the first common mode choke, egg nes first resistor, the second common mode choke and a second resistor. Are between the first resistor and the first common mode choke the input-side capacitors for the input-side connection to the input lines of the converter are arranged.
  • the output-side capacitors are arranged between the first resistor and the second common-mode choke for connection on the output side to the output lines of the converter.
  • the capacitors provide a low-impedance path for the common-mode currents.
  • a filter with an LC or CL topology is preferably obtained on the input and output side.
  • the first resistor is preferably very much larger than the second resistor, and the values of the resistors differ by a factor of 10. Overheating of the capacitors on the input and output sides is avoided.
  • An alternative circuit device is advantageously provided, which absorbs the resulting interference currents and thus reduces the electromagnetic emission of the converter.
  • the circuit device comprises capacitors on the output side.
  • the additional line is designed as a short-circuited series circuit of the first common mode choke and a first resistor. Between the first resistor and the first common mode choke, the output-side capacitors for the output-side connection to the
  • Output lines of the converter arranged.
  • the additional line is capacitively connectable to a reference conductor by means of a first capacitor. This capacitive additional connection ensures a broadband effect than the purely inductive connection.
  • An alternative circuit device is advantageously provided, which absorbs the resulting interference currents and thus reduces the electromagnetic emission of the converter.
  • the invention relates to a power electronic system with the converter and a connected described circuit device.
  • a power electronic system consisting of the converter and the closed circuit device is provided.
  • a power electronic system is advantageously provided, in which a reduction of the electromagnetic emission is achieved.
  • the power electronic system comprises a connected DC voltage source and or a connected multiphase electrical machine.
  • a power electronic system which comprises a connected DC voltage source, preferably a high-voltage battery, a fuel cell and or a photovoltaic system, and or a connected multi-phase electrical machine, preferably a synchronous or asynchronous machine.
  • a power electronic system is advantageously provided, in which a reduction of the electromagnetic emission is achieved.
  • the invention further relates to an electric vehicle with the power electronic system.
  • An electrical vehicle in particular a motor vehicle, a passenger car or truck or a vehicle on water or in the air, is provided with the power electronic system.
  • a vehicle is advantageously provided in which a reduction in electromagnetic emissions is achieved.
  • the circuit device or the power electronic system is therefore preferred for use in all shielded and unshielded electrical and hybrid drive systems in the motor vehicle sector, in 48 V motor vehicle drive systems, in industrial drives of all voltage classes, in converter systems in the electrical energy supply sector, especially also in photovoltaic systems. Taikverrichter, or provided with DC voltage converters.
  • the common mode interference source and the electrical components connected to the converter can preferably be electromagnetically decoupled with high-impedance components. Additional components for an alternative low-impedance path for the common-mode currents can preferably also be provided for an improved filter effect. It goes without saying that the features, properties and advantages of the circuit device correspondingly apply or are applicable to the power electronic system or the electric vehicle and vice versa.
  • Figure 6 a sixth embodiment in a schematic representation of an electric vehicle with a power electronic system with a Wegu ngsvorrichtu ng
  • FIG. 1 shows a first exemplary embodiment in a schematic illustration of a circuit device 100 and a power electronic system 200.
  • the circuit device 100 comprises a short-circuited additional line 50 which is connected to an input, preferably with input-side input lines 10, 15, and an output, preferably with output-side output lines 20 , 25, 30, a converter 60 can be coupled.
  • the converter 60 preferably the circuit and or the housing as the ground connection of the converter 60, is electrically connected to a reference conductor 65.
  • the circuit device 100 preferably comprises at least one first common mode choke 75 through which the input lines 10, 15 and the additional line 50 are guided or wound.
  • the circuit device 100 for coupling the additional line 50 to the output of the converter 60 preferably comprises a second common mode choke 70 through which the output lines 20, 25, 30 and the additional line 50 are guided or wound.
  • the converter 60 generates common mode interference during operation and in particular forms a common mode voltage source.
  • This common mode voltage source leads to common mode currents, which are preferably coupled out via the first and second common mode chokes 70, 75 and are transmitted via the additional line 50 from the common mode interference source back to the common mode interference source.
  • the additional line 50 preferably comprises a damping component 80, in particular a resistor, for damping the common mode current in the additional line 50.
  • the electrical energy of the common mode current can be converted into thermal energy via the damping element 80, which is a resistor, for example.
  • the additional line 50 is preferably likewise galvanically connected to the reference conductor 65 for broadband filtering of higher frequencies.
  • the reference conductor 65 is connected at one point to a protective conductor 67 or ground, or a vehicle ground or grounded.
  • the converter 60 with the coupled circuit device 100 forms a power electronic system 200.
  • FIG. 2 shows a second exemplary embodiment in a schematic representation of a circuit device 100 and a power electronic system 200.
  • the circuit device 100 comprises a special embodiment of the short-circuited additional line 50 with a maximum damping element, namely a separation of the additional line 50.
  • the result is a first short-circuited additional line 52 with a first resistor 53 and a second short-circuited additional line 54 with a second resistor 55.
  • the first additional line 52 can be coupled to the converter 60 on the input side.
  • the second additional line 54 can be coupled on the output side to the converter 60.
  • the circuit device 100 preferably comprises at least one first common mode choke 75 through which the input lines 10, 15 and the additional line 52 are guided or wound.
  • the circuit device 100 for coupling the additional line 54 preferably comprises a second common mode choke 70 through which the output lines 20, 25, 30 and the additional line 54 are guided or wound.
  • the first short-circuited additional line 52 is capacitively connectable to the reference conductor 65 by means of a first capacitor 56 and or the second short-circuited additional line 54 by means of a second capacitor 58. This means that the entry and exit pages can be individually optimized.
  • the converter 60 generates common mode interference during operation and in particular forms a common mode voltage source.
  • This common mode voltage source leads to common mode currents which are coupled out via the first and second common mode chokes 70, 75 and are transmitted from the common mode interference source back to the common mode interference source via the additional lines 52, 54, preferably via the first and second capacitors 56, 58 and the reference conductor 65 .
  • the additional lines 52 and 54 include the resistors 53 and 55 as a damping component 80 for damping the common mode current in the additional lines 52, 54.
  • the converter 60 with the coupled circuit device 100 forms a power electronic system 200.
  • FIG. 3 shows a third exemplary embodiment in a schematic representation of a circuit device 100 and a power electronic system 200.
  • the circuit device 100 comprises a short-circuited additional line 50 which is connected to an input, preferably with an input-side input lines 10, 15 and an output, preferably with a converter 60 can be coupled from output-side output lines 20, 25, 30.
  • the circuit device 100 comprises capacitors 110, 120 on the input side and capacitors 130, 140, 150 on the output side.
  • the additional line is designed as a short-circuited series circuit of the first common mode choke 75, a first resistor 160, the second common mode choke 70 and a second resistor 170. Between the first resistor 160 and the first common mode choke 75, the input-side capacitors 110, 120 are arranged for an input-side connection to the input lines of the converter 60.
  • the converter 60 generates common mode faults during operation and in particular forms a common mode voltage source.
  • This common-mode voltage source leads to common-mode currents, which are coupled out via the first and second common-mode chokes 70, 75 and the input-side capacitors 110, 120 and output-side capacitors 130, 140, 150 and are transmitted via the additional line 50 from the common-mode interference source back to the common-mode interference source.
  • the additional line 50 is preferably not galvanically connected to the reference conductor 65.
  • the reference conductor 65 is connected at one point to a protective conductor 67 or grounded.
  • the converter 60 with the connected circuit device 100 forms a power electronic system 200.
  • FIG. 4 shows a fourth exemplary embodiment in a schematic illustration of a circuit device 100 and a power electronic system 200.
  • the circuit device 100 comprises a short-circuited additional line 50 which is connected to an input, preferably with a aisle-side input lines 10, 15, and an output, preferably with a converter 60 comprising aisle-side output lines 20, 25, 30.
  • the converter 60 preferably the circuit and or the housing as the ground connection of the converter 60, are electrically connected to a reference conductor 65.
  • the circuit device 100 preferably comprises at least one first common mode choke 75 through which the input lines 10, 15 and the additional line 50 are guided or wound.
  • the circuit device 100 for coupling the additional line 50 comprises capacitors 130, 140, 150 on the output side.
  • the additional line 50 is designed as a short-circuited series connection of the first common mode choke 75 and a first resistor 160. Between the first resistor 160 and the first common mode choke 75, the output-side capacitors 130, 140, 150 are arranged for connection on the output side to the output lines of the converter 60.
  • the additional line 50 can preferably be connected capacitively to a reference conductor 65 by means of a third capacitor 175. This topology has a particularly high power density.
  • the converter 60 generates common mode interference during operation and in particular forms a constant voltage source. This common mode voltage source leads to common mode currents, which are coupled out via the first common mode choke 75 and the output-side capacitors 130, 140, 150 and transmitted via the additional line 50 from the common mode interference source back to the common mode interference source.
  • the auxiliary line 50 preferably comprises, as a damping component, a first resistor 160 for damping the common mode current in the auxiliary line 50.
  • the converter 60 with the connected circuit device 100 forms a power electronic system 200.
  • FIG. 5 shows a fifth exemplary embodiment in a schematic illustration of a circuit device 100 and a power electronic system 200.
  • the converter 60 with the coupled circuit device 100 forms a power electronic system 200.
  • the power electronic system 200 includes a connected DC voltage source 180 and or a connected multi-phase electrical machine 190.
  • the DC voltage source 180 is, for example, electrically conductive on a positive pole and a negative pole, each with one of the Input lines 10, 15 of the converter 60 connected.
  • the electrical machine 190 shown as an example is electrically conductively connected to the three phase connections of each of the output lines 20, 25, 30 of the converter 60.
  • the converter 60 is preferably an inverter for converting the DC voltage of the DC voltage source 180, preferably a battery, into a multiphase AC voltage for supplying an electrical, preferably three-phase, machine 190.
  • the converter 60, the DC voltage source 180 and or the electrical machine 190, preferably their electrical circuits and or their housing as ground connections, are galvanically connected to a reference conductor 65.
  • the reference conductor 65 is connected at one point to a protective conductor 67 or grounded.
  • FIG. 6 shows a sixth exemplary embodiment in a schematic illustration of an electric vehicle 300 with a power electronic system 200 with a circuit device 100.
  • Vehicle 300 is preferably a motor vehicle. It comprises a power electronic system 200 with a circuit device 100, which causes a reduced electromagnetic emission.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Power Conversion In General (AREA)

Abstract

La présente invention concerne un dispositif de commutation (100) permettant de réduire des perturbations de synchronisme d'un convertisseur (60), le convertisseur (60) formant en service une source de perturbations de synchronisme. Le dispositif de commutation (100) comprend au moins une ligne additionnelle court-circuitée (50) qui peut être couplée à une entrée (10, 15) et à une sortie (20, 25, 30) du convertisseur (60), la ligne additionnelle (50) transportant les courants perturbateurs générés par la source de perturbations de synchronisme et les ramène à cette dernière.
EP19786557.9A 2018-12-05 2019-10-09 Dispositif de commutation pour la réduction de perturbations de synchronisme d'un convertisseur Pending EP3891878A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018221032.2A DE102018221032A1 (de) 2018-12-05 2018-12-05 Schaltungsvorrichtung zur Reduktion von Gleichtaktstörungen eines Stromrichters
PCT/EP2019/077314 WO2020114653A1 (fr) 2018-12-05 2019-10-09 Dispositif de commutation pour la réduction de perturbations de synchronisme d'un convertisseur

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EP3891878A1 true EP3891878A1 (fr) 2021-10-13

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US (1) US11398772B2 (fr)
EP (1) EP3891878A1 (fr)
CN (1) CN113169665A (fr)
DE (1) DE102018221032A1 (fr)
WO (1) WO2020114653A1 (fr)

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DE102020215055A1 (de) 2020-11-30 2022-06-02 Robert Bosch Gesellschaft mit beschränkter Haftung Schaltungsanordnung zum Reduzieren von Gleichtaktstörungen eines leistungs-elektronischen Geräts
EP4142129A1 (fr) * 2021-08-31 2023-03-01 Wobben Properties GmbH Filtre cem d'une éolienne

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US11398772B2 (en) 2022-07-26
US20220052599A1 (en) 2022-02-17
CN113169665A (zh) 2021-07-23
DE102018221032A1 (de) 2020-06-10
WO2020114653A1 (fr) 2020-06-11

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