WO2015178738A1 - Convertisseur à sorties multiples - Google Patents

Convertisseur à sorties multiples Download PDF

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Publication number
WO2015178738A1
WO2015178738A1 PCT/KR2015/005210 KR2015005210W WO2015178738A1 WO 2015178738 A1 WO2015178738 A1 WO 2015178738A1 KR 2015005210 W KR2015005210 W KR 2015005210W WO 2015178738 A1 WO2015178738 A1 WO 2015178738A1
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Prior art keywords
energy
output
unit
voltage
power supply
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PCT/KR2015/005210
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English (en)
Korean (ko)
Inventor
김춘봉
박성준
최우석
Original Assignee
엘지이노텍 주식회사
전남대학교산학협력단
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Publication of WO2015178738A1 publication Critical patent/WO2015178738A1/fr

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    • 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
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • 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
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • 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
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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

  • the present invention relates to a multiple output converter.
  • DC-DC converters are largely divided into insulated and non-insulated ones.
  • Insulation type has the advantage that the insulation of the input terminal and the output terminal, that is, the heat transfer to the transformer using the magnetic core to ensure the stability, and the boost-decrease ratio can be adjusted by adjusting the winding ratio.
  • the buck type includes a forward, half bridge, and full bridge converter, and the buck-boost type is a flyback converter. converter).
  • the flyback converter requires only one high-voltage switching element to operate, which makes the converter simple and low-cost.
  • the DC-DC converter may be referred to as a switch mode power supply (SMPS) formed of a single chip and a negative feedback controller which senses an error of an output signal and controls it.
  • SMPS switch mode power supply
  • the present invention can provide multiple output converters that provide multiple outputs at low cost.
  • the present invention may also provide a multiple output converter capable of realizing low harmonic distortion.
  • the present invention may provide a device that requires a plurality of power supplies or a multiple output converter that can use a plurality of power supplies separately.
  • the present invention may provide a multiple output converter having high efficiency and capable of controlling a plurality of output voltages.
  • the power supply An energy division output unit configured to divide and output energy from the power supply unit; And a multiple output unit configured to receive the divided energy from the energy division output unit and output the divided energy to a plurality of output ports, wherein the energy division output unit includes first and second energy dividers and the first and second energy dividers. It is possible to provide a multiple output converter including an energy division controller connected between the installments and controlling the electrical connection of the first and second energy dividers to control the degree of energy division from the power supply.
  • the multiple output unit of the multiple output converter according to another embodiment of the present invention, the first output unit for outputting the energy provided from the first energy divider; And a third output unit configured to output energy provided from the second energy divider.
  • the multiple output unit of the multiple output converter may provide a multiple output converter further comprising a second output unit for outputting the voltage of the input power supply unit.
  • the first energy divider of the multiple output converter includes a first energy store
  • the second energy divider includes a second energy store
  • the first and second energy stores may provide a multiple output converter for storing energy provided from the input power unit.
  • the first energy storage unit of the multiple output converter is provided with a portion of the input voltage of the input power supply unit, the second energy storage unit receives a portion of the input voltage of the input power supply unit
  • Multiple output transducers may be provided.
  • the energy splitting control unit of the multiple output converter may provide a multiple output converter for controlling whether or not to supply the energy from the input power supply to the first and second energy splitter.
  • the first energy divider of the multiple output converter according to another embodiment of the present invention further comprises a first reflux portion
  • the second energy divider further comprises a second reflux portion
  • the control unit may provide a multiple output converter controlled by the energy division controller to control whether current flows between the first and second energy dividers and the multiple output units.
  • the first energy storage unit of the multiple output converter may provide a multiple output converter including a first inductor, the second energy storage unit includes a second inductor.
  • the inductance values of the first and second inductors of the multiple output converter may provide the same multiple output converter.
  • the energy splitting control unit of the multiple output converter includes a switch element, and the multiple output converter for controlling the output voltage of the multiple output unit in accordance with the turn-on and turn-off ratio of the switch element You can also provide
  • the multiple output unit is a multiple output converter for outputting the DC voltage of the boosted input power supply unit three DC voltage You can also provide
  • the multiple output converter according to another embodiment of the present invention, the power supply for supplying a DC voltage; An energy split output unit connected to both ends of the power supply unit; And a multiple output unit connected to the power supply unit and the energy division output unit to output the DC voltage as a plurality of DC voltages, wherein the energy division output unit is controlled by first and second inductors and a control signal.
  • the first inductor is connected to one terminal of the input power supply unit and one terminal of the switch element
  • the second inductor includes a multiple output converter connected to the other terminal of the input power supply unit and the other terminal of the switch element.
  • the energy split output unit further comprises a first and a second diode
  • the first diode is a common terminal of the first inductor and the switch element and the multiple
  • the second diode may be connected between an output unit, and the second diode may provide a multiple output converter connected between the common terminal of the second inductor and the switch element and the multiple output unit.
  • the multiple output unit of the multiple output converter includes first to third output units, the first output unit is connected to one terminal of the input power supply unit and the first diode, The second output unit may be connected to both terminals of the input power unit, and the second output unit may provide a multiple output converter connected to the other terminal of the input power unit and the second diode.
  • each of the first to third output units of the multiple output converter may provide a multiple output converter including a capacitor and a resistor connected in parallel with each other.
  • inductance values of the first and second inductors of the multiple output converter according to another embodiment of the present invention may provide the same multiple output converter.
  • the multiple output unit of the multiple output converter outputs the first and third output voltage corresponding to each other and the second output voltage corresponding to the input voltage of the input power supply unit May be provided.
  • the second output voltage of the multiple output converter may provide a multiple output converter that is twice the first output voltage or the second output voltage.
  • energy is stored in the first and second inductors when the switch element of the multiple output converter according to another embodiment of the present invention is turned on, and accumulated in the first and second inductors when the switch element is turned off. It is also possible to provide multiple output converters in which the energy is provided to the multiple outputs.
  • a multilevel inverter including a multiple output converter may provide a multilevel inverter having a plurality of voltages output from the multiple output converter as input power.
  • the present invention can provide multiple outputs at low cost, and can realize harmonic distortion reduction, and can also provide a device that requires a plurality of power supplies or a multiple output converter that can use a plurality of power supplies separately. Therefore, the present invention can provide a multiple output converter having high efficiency and capable of controlling a plurality of output voltages.
  • FIG. 1 is a diagram illustrating a single output DC-DC converter
  • FIG. 2 is a circuit diagram illustrating a switch element turned on in the single output DC-DC converter of FIG. 1
  • FIG. 3 is a single output DC-DC converter of FIG. 1.
  • 4 is a circuit diagram illustrating a case in which a switch element is turned off in a converter
  • FIG. 4 is a diagram illustrating an operation relationship thereof.
  • 5 is a view showing the waveform of the voltage of the inductor to find the equilibrium condition of voltage and time.
  • FIG. 6 illustrates a multiple output converter according to an embodiment of the present invention.
  • FIG. 7 is a view illustrating an energy split output unit in a multiple output converter according to an embodiment of the present invention.
  • FIG 8 is a view showing in detail the multiple output unit in a multiple output converter according to an embodiment of the present invention.
  • FIG. 9 is a view illustrating the first and second energy dividers in detail in the energy split output unit according to the embodiment of the present invention.
  • FIG. 10 is a diagram illustrating a specific circuit diagram of a multiple output converter according to an embodiment of the present invention.
  • FIG. 11 is an equivalent circuit diagram illustrating a case where a switch of an energy splitting control unit of a multiple output converter according to an exemplary embodiment of the present invention is turned on.
  • FIG. 12 is an equivalent circuit diagram illustrating a case where a switch of an energy splitting control unit of a multiple output converter according to an exemplary embodiment of the present invention is turned off.
  • FIG. 13 is a graph illustrating an equilibrium condition of an inductor voltage applied to a first inductor.
  • FIG. 14 is a graph illustrating an equilibrium condition of an inductor voltage applied to a second inductor.
  • FIG. 15 is a diagram illustrating waveforms of currents and voltages flowing to multiple output converters according to an embodiment of the present invention.
  • 16 is a graph illustrating changes of the first and third output voltages according to the ratio of ratios.
  • FIG. 1 is a diagram illustrating a single output DC-DC converter
  • FIG. 2 is a circuit diagram illustrating a switch element turned on in the single output DC-DC converter of FIG. 1
  • FIG. 3 is a single output DC-DC converter of FIG. 1.
  • 4 is a circuit diagram illustrating a case in which a switch element is turned off in a converter
  • FIG. 4 is a diagram illustrating an operation relationship thereof.
  • FIGS. 1 to 4 related to a circuit of a boost (step up) converter in which an output voltage is higher than an input voltage.
  • Single output DC-DC converter is a switch that is connected in parallel with the input power (Vi) and the inductor (L) connected in series, the input power (Vi), inductor (L) in accordance with the duty ratio (D) switching operation
  • An output filter including an element Q, an RC parallel circuit for outputting an output voltage Vo, and a diode D connecting the switch element Q and the output filter to each other.
  • the switch element Q has a period Ts, is turned on during the DTs, and is turned off during the DTs and Ts time periods.
  • FIG. 2 which illustrates the case where the switch element Q is turned on, energy is accumulated in the inductor L by the inductor current when the switch element Q is conducting, and the diode D is cut off. At this time, the charge of the capacitor C of the output filter is discharged through the load resistor R at the output side.
  • the current i flowing through the inductor, the current iD flowing through the diode, and the output voltage Vo output from the output filter can be determined through the following equation.
  • the inductor L When the input voltage Vi is a DC voltage, the inductor L is connected in parallel with the input voltage Vi, and according to the voltage and current relational expression of the inductor Relationship is established, and the current flowing through the inductor L Since it is expressed by an equation, it can be expressed by an equation of a straight line. And the output voltage (Vo) output from the output filter is expressed by the formula considering the time constant of the RC circuit It can be expressed as
  • the current i of the inductor L and the output voltage Vo of the output filter are shown in a graph, which is equal to the time period of t0 (initial time 0 seconds or Ts) and DTs of FIG. 4.
  • FIG. 3 which shows a case in which the switch element Q is turned off, energy accumulated in the inductor L is discharged to the output side through the diode D.
  • the current i flowing through the inductor, the current iD flowing through the diode, and the output voltage Vo output from the output filter can be described as follows.
  • the current i flowing in the inductor L can be reduced by the ratio of the load resistance R and the input voltage Vi of the output filter, and the output voltage Vo is the final input voltage according to the time constant RC. Can increase exponentially towards (Vi).
  • the graph showing the relationship between the voltage and the current of each device is as shown in the DTs and Ts time periods in FIG. 4.
  • 5 is a view showing the waveform of the voltage of the inductor to find the equilibrium condition of voltage and time.
  • the voltage VL of the inductor may have an input voltage Vi for a time period of 0 and DTs, and may have a (Vo-Vi) time for DTs and a Ts time. At this time, it is assumed that the ripple of the output voltage Vo is very small.
  • FIG. 6 illustrates a multiple output converter according to an embodiment of the present invention.
  • the multiple output converter 10 may include an energy supply unit 100, an energy split output unit 300, and a multiple output unit 500.
  • the energy supply unit 100 of the multiple output converter 10 may be connected between the first and second nodes N1 and N2.
  • the energy split output unit 300 may be connected in parallel with the energy supply unit 100. Therefore, the energy split output unit 300 may be connected between the first and second nodes N1 and N2.
  • the multiple output unit 500 may be connected to the first and second nodes N1 and N2 and the third and fourth nodes N3 and N4.
  • the energy supply unit 100 of the multiple output converter 10 may supply power, and output a voltage across both the first and second nodes N1 and N2.
  • the energy split output unit 300 may receive power provided from first and second nodes N1 and N2 which are both terminals of the energy supply unit 100 based on a control signal CS. have.
  • the energy split output unit 300 may determine the degree of division of the power provided from the energy supply unit 100 based on the control signal CS, and output the powers of which the degree of division is determined.
  • the energy split output unit 300 may divide power provided from one port, which is both terminals N1 and N2 of the energy supply unit 100, and provide the divided power to a plurality of ports.
  • the multiple output unit 500 may output the energy provided from the energy split output unit 300 to a plurality of output ports, and specifically, the power received from the energy split output unit 300 may be three ports.
  • the energy split output unit 300 divides the voltages input to the first and second nodes N1 and N2 into first and third output voltages Vo1 and Vo3 to divide the first output voltage Vo1. Is output to the third and first nodes N3 and N1, the third output voltage Vo3 is output to the second and fourth nodes N2 and N4, and the second output voltage Vo2 equal to the input voltage. ) May be output to the first and second nodes N1 and N2 as they are.
  • the multiple output unit 500 may output a DC voltage, and the DC voltage may be the first to third output voltages Vo1, Vo2, and Vo3. Can be Therefore, the multiple output converter according to the embodiment of the present invention can operate as a DC-DC converter.
  • FIG. 7 is a view illustrating an energy split output unit in a multiple output converter according to an embodiment of the present invention.
  • the energy split output unit 300 may include a first energy divider 310, a second energy divider 330, and an energy split controller 350. .
  • the first energy divider 310 may be connected between the first node N1, which is one terminal of the energy supply unit 100, the energy split controller 350, and the third node N3, and the second energy divider ( The 330 may be connected between the second node N2, which is the other terminal of the energy supply unit 100, the energy division controller 350, and the fourth node N4.
  • the energy split controller 350 is connected between the first and second energy splitters 310 and 330 to block the electrical connection or the electrical connection between the first and second energy splitters 310 and 330. Can be. That is, the energy division controller 350 may include three terminals of the three terminals of the first energy divider 310 except for the first and third nodes N1 and N3 and the third energy divider 330. It may be connected between the remaining terminals except for the second and fourth nodes N2 and N4 among the three terminals.
  • the energy division controller 350 constituting the energy division output unit 300 may control whether energy is transferred from the input power supply unit 100 to the first and second energy division units 310 and 330, and specifically, a square wave signal. The amount of energy divided into the first and second energy dividers 310 and 350 may be adjusted based on the control signal CS.
  • the first energy divider 310 may output a part of the energy provided from the energy supply unit 100 under the control of the energy divider control unit 350, and the second energy divider 330 may remain the same. It can output energy.
  • FIG 8 is a view showing in detail the multiple output unit in a multiple output converter according to an embodiment of the present invention.
  • the multiple output unit 500 may include first to third output units 510, 530, and 550.
  • the first output unit 510 may be connected to one terminal of the energy supply unit 100 and the one output terminal of the energy split output unit 300, and the second output unit 530 may be connected to a port of the energy supply unit 100.
  • the third output unit 550 may be connected to the other terminal of the energy supply unit 100 and the other output terminal of the energy split output unit 300.
  • the first output unit 510 may be connected between the third and first nodes N3 and N1
  • the second output unit 520 may be connected between the second and fourth nodes N2 and N4.
  • the third output unit 530 may be connected between the first and second nodes N1 and N2.
  • the multiple output unit 500 may divide and output power provided from the energy supply unit 100 and the energy split output unit 300 by multiplexing, and control a ripple component that may be formed at each output voltage. .
  • the first output unit 510 is output from both terminals of the first node N1 which is one terminal of the energy supply unit 100 and the third node N3 which is one output terminal of the energy split output unit 300.
  • the power may be supplied to adjust the ripple component to output the first output voltage Vo1.
  • the second output unit 530 may output power provided from the first and second nodes N1 and N2 which are both terminals of the energy supply unit 100. In this case, since the second output unit 530 is connected in parallel with the energy supply unit 100, the second output unit 530 may be output as the second output voltage Vo2 by adjusting the ripple component of the voltage provided from the energy supply unit 100. .
  • the third output unit 550 may output power output from both terminals of the second node N2, which is the other terminal of the energy supply unit 100, and the fourth node N4, which is the other output terminal of the energy split output unit 300.
  • the ripple component may be controlled to output the third output voltage Vo3.
  • FIG. 9 is a view illustrating the first and second energy dividers in detail in the energy split output unit according to the embodiment of the present invention.
  • the first energy divider 310 may include a first energy store 311 and a first reflux unit 315.
  • the second energy divider 330 may include a second energy store 313 and a second reflux 317.
  • the first energy storage unit 311 constituting the first energy division unit 310 may be connected between the first node N1, the energy division control unit 350, and the first reflux unit 315.
  • the second energy storage unit 313 constituting the second energy division unit 330 may be connected between the second node N2, the energy division control unit 350, and the second reflux unit 317.
  • the first reflux unit 315 may be connected between the first energy storage unit 311, the energy split controller 350, and the third node N3, and the second reflux unit 317 may have a second energy.
  • the storage unit 313 may be connected between the energy division controller 350 and the fourth node N4.
  • the first energy storage unit 311 constituting the first energy division unit 310 stores some of the energy provided from the energy supply unit 100 for a predetermined time based on the control of the energy division control unit 350, It may function to provide to the first output unit 510 constituting the multiple output unit 500 for a time.
  • the second energy storage unit 313 constituting the second energy division unit 330 stores the remaining part of the energy provided from the energy supply unit 100 for a predetermined time based on the control of the energy division control unit 350, and It may function to provide to the third output unit 550 constituting the multiple output unit 500 for a predetermined time.
  • the first and second reflux units 315 and 317 are controlled by the energy division controller 350 so that current flows between the first and second energy dividers 310 and 330 and the multiple output units 500. You can control whether or not.
  • the first reflux unit 315 conducts current between the first energy storage unit 311 and the third node N3 to allow a current to flow or, on the contrary, cuts off the current. May conduct a current between the second energy storage unit 313 and the fourth node N4 to allow a current to flow or, on the contrary, cut off the current.
  • the current flow of the first and second reflux unit 315, 317 may be controlled by the energy splitting control unit 350.
  • FIG. 10 is a circuit diagram as an example of implementing a multiple output converter according to an embodiment of the present invention.
  • the energy supply unit 100 constituting the multiple output converter 10 may be a DC power source.
  • the energy split output unit 300 may include at least one inductor L1, L2, at least one diode D1, D2, and the switching element 350.
  • the first energy storage unit 311 may be configured as a first inductor L1, and may be connected between the first node N1, the energy division controller 350, and the first reflux unit 315, and the second The second inductor L2 constituting the energy storage unit 313 may be connected between the second node N2, the energy split controller 350, and the second reflux unit 317.
  • the energy division controller 350 may be formed of a switch element, may receive a control signal CS from a gate terminal, and the drain and source terminals may be connected between the first and second energy storage units 311 and 313. have.
  • the control signal CS may be a signal provided from a controller (not shown).
  • the control signal CS may be a square wave signal having a period which may change at a specific time or a specific time, and may be a pulse modulation signal (PWM).
  • the first reflux unit 315 may include a first diode D1, and an anode terminal of the first diode D1 may include one terminal of the energy division controller 350 and a first energy storage unit ( The terminal may be commonly connected to one terminal of 311, and a cathode terminal may be connected to the third node N3.
  • the second reflux unit 317 may be configured as a second diode D2, and the cathode terminal of the second diode D2 may include the other terminal of the energy division controller 350 and the second energy storage unit 313. Commonly connected to one terminal, the anode terminal may be connected to the fourth node (N4).
  • the multiple output unit 500 may include first to third output units 510, 530, and 550, and the first output unit 510 may be connected between the first and third nodes N1 and N3. And a first capacitor C1 and a first resistor R1 connected in parallel to each other, the first output from both terminals of the first resistor R1 or both terminals of the first capacitor C1.
  • the voltage Vo1 may be output.
  • the second output unit 530 may be connected between the first and second nodes N1 and N2, and may include a second capacitor C2 and a second resistor R2 connected in parallel with each other.
  • the second output voltage Vo2 may be output from both terminals of the second resistor R2 or both terminals of the second capacitor C2.
  • the third output unit 550 may be connected between the second and fourth nodes N2 and N4, and may include a third capacitor C3 and a third resistor R3 connected in parallel with each other.
  • the third output voltage Vo3 may be output from both terminals of the third resistor R3 or both terminals of the third capacitor C3.
  • FIG. 11 is an equivalent circuit diagram illustrating a case where a switch of an energy splitting control unit of a multiple output converter according to an exemplary embodiment of the present invention is turned on.
  • the first and second inductors L1 and L2 constituting the first and second energy storage units 311 and 313 according to the embodiment of the present invention may have the following relationship.
  • the voltage VL1 applied to the first inductor L1 may have a value scaled by lambda times the input voltage Vi.
  • FIG. 12 is an equivalent circuit diagram illustrating a case where a switch of an energy splitting control unit of a multiple output converter according to an exemplary embodiment of the present invention is turned off.
  • the first output voltage Vo1 is a voltage that appears as energy previously accumulated in the first inductor L1 is released.
  • the ripple of the first output voltage Vo1 may be adjusted by changing values of the first capacitor C1 and the first resistor R1, and the third output voltage Vo3 is previously applied to the third inductor L3.
  • the ripple of the third output voltage Vo3 can be adjusted by changing the values of the third capacitor C3 and the third resistor R3, and the second output voltage Vo2 is input.
  • the ripple component is similarly applied to the voltage Vin and may be adjusted by changing values of the second capacitor C2 and the second resistor R2.
  • the ripple degree may be proportional to a duty ratio, and may be inversely proportional to the frequency of switching the switch element of the first resistor R1, the first capacitor C1, and the energy division controller 350.
  • FIG. 13 is a graph illustrating an equilibrium condition of an inductor voltage applied to a first inductor.
  • the voltage applied to the first inductor L1 when the switch of the energy division controller 350 is turned on (during 0 to DTs time period)
  • the voltage applied to the second inductor L2 when the switch of the energy division controller 350 is turned off (during DTs to Ts time period) is applied to the Kirchhoff voltage law in the circuit diagram of FIG. As shown in FIG. 13, the graph is shown in FIG. 13.
  • the first output voltage Vo1 may be determined according to the rate of application, the value of the lambda, and the input voltage.
  • FIG. 14 is a graph illustrating an equilibrium condition of an inductor voltage applied to a second inductor.
  • the voltage applied to the second inductor L2 is The voltage applied to the second inductor L2 when the switch of the energy division controller 350 is turned off (during DTs to Ts time period) is applied when the Kirchhoff voltage law is applied in the circuit diagram of FIG. As shown in FIG. 14, the graph is shown in FIG. 14.
  • the third output voltage Vo3 may be determined according to the rate of application, the value of the lambda, and the input voltage.
  • the second output voltage Vo2 is determined by the input voltage Vi
  • the first and third output voltages Vo1 and Vo3 are the energy division controller 350.
  • the first and third output voltages Vo1 and Vo3 can be simultaneously controlled to the same voltage using only the ratio and the input voltage.
  • the multiple output unit 500 may have the first and third output voltages Vo1 and Vo3 and the input power supply unit corresponding to each other.
  • the second output voltage Vo2 corresponding to the input voltage Vi of 100 may be output.
  • the multiple output unit 500 includes the first and third output voltages Vo1,
  • the second output voltage Vo2 equal to the magnitude of Vo3 and the input voltage Vi of the input power supply unit 100 may be output.
  • the same may mean that they are approximately the same because they may show a slight difference in the device characteristics of the circuit.
  • the multiple output converter 10 When the multiple output converter 10 according to the embodiment of the present invention is operated as a multilevel inverter, a voltage in which positive and negative voltages are symmetrical is required, and in this case, inductance values of the first and second inductors L1 and L2 are used. It is desirable to design the same.
  • FIG. 15 is a diagram illustrating waveforms of currents and voltages flowing to multiple output converters according to an embodiment of the present invention.
  • the control signal CS applied to the energy division controller 350 has a high signal and in this case the energy The switch element of the division controller 350 may be turned on.
  • energy is supplied from the input power source Vi and the currents IL1 and IL2 flowing through the first and second inductors L1 and L2 may increase.
  • the current Is flowing to the energy division controller 350 may also increase.
  • the difference between the initial current values of the currents IL1 and IL2 flowing through the first and second inductors L1 and L2 and the current Is flowing through the energy splitting control unit 350 is determined by the switching elements in the energy splitting control unit 350. This may be due to a threshold voltage.
  • the currents ID1 and ID2 may have a value of zero.
  • the second output voltage ( V02) may have a value of an input voltage.
  • the control signal CS applied to the energy division controller 350 has a low signal and in this case, the energy The switch element of the division controller 350 may be turned off.
  • the currents IL1 and IL2 flowing through the first and second inductors L1 and L2 can be reduced accordingly.
  • the turn-off of the switch element of the energy division controller 350 may have a value of the current Is (0).
  • the currents ID1 and ID2 may have a non-zero value.
  • the second output voltage V02 may have a value of an input voltage.
  • 16 is a graph illustrating changes of the first and third output voltages according to the ratio of ratios.
  • the first and third output voltages Vo1 and Vo3 having the same voltage may be obtained.
  • the second output voltage Vo2 is twice the first output voltage Vo1 or the second output voltage Vo2, and the first and third output voltages Vo1 and Vo3 are adjusted according to the rate of application. It can be seen that it can be adjusted.
  • the multiple output converter 10 may operate as a DC-DC converter that receives three input voltages and outputs three output voltages, and may simplify the circuit configuration. By adjusting the rate, the first and third output voltages Vo1 and Vo3 may be adjusted.
  • the energy splitting control unit 350 can be configured using only one switch element, the power conversion efficiency can be improved at low cost, and the energy splitting composed of the minimum switch elements can be used to control the harmonic components resulting from the switch operation.
  • the control unit 350 may have an effect of lowering harmonic distortion.
  • Embodiments of the present invention can be applied to a power supply device including the multiple output converter 10, a device requiring a plurality of input voltages, or a system requiring a plurality of output voltages, and specifically, a front power supply of a multilevel inverter. It can be used as a power converter that requires a higher boost ratio than the input voltage.
  • the multiple output converter 10 may be used as an input power supply unit of a multi-level inverter, and may be used as an input power supply of a multilevel inverter used in a high-voltage large-capacity system. have.
  • the circuit scheme for configuring a voltage-type high-voltage large-capacity inverter can be largely divided into a high-voltage method and a multi-level inverter method of the switching element by the series connection of the switching elements.
  • a series of low voltage switching elements are connected in series to form an equivalent high voltage switching element.
  • the circuit operation is the same as that of a low voltage two-level inverter.
  • two of the three outputs of the multiple output converter according to an embodiment of the present invention can be used, and the other one can be used as a power source of a different configuration.
  • the three-level inverter refers to an inverter structure having three phase voltage outputs.
  • the methods for obtaining three-phase phase voltage there are a cascaded three-level inverter method and an NPC three-level inverter method.
  • the multiple output converter 10 according to the embodiment of the present invention may also be applied to such a three-level inverter.
  • the multi-output inverter 10 can be applied to such a multi-level inverter.
  • the multiple output converter 10 may be used in a small battery, an electric vehicle (EV), an electric storage system (ESS), or an LED power supply. .
  • the multiple output converter 10 may be used.
  • the present invention can be used for a multi-input system.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

La présente invention peut fournir un convertisseur à sorties multiples pouvant fournir de multiples sorties à un faible coût, mettre en œuvre une réduction d'un taux de distorsion harmonique totale, et séparer et utiliser des dispositifs qui nécessitent une pluralité de sources de puissance ou une pluralité de sources d'énergie, et peut fournir un convertisseur à sorties multiples qui présente un rendement élevé et peut commander une pluralité de tensions de sortie.
PCT/KR2015/005210 2014-05-22 2015-05-22 Convertisseur à sorties multiples WO2015178738A1 (fr)

Applications Claiming Priority (2)

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KR20140061364 2014-05-22
KR10-2014-0061364 2014-05-22

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WO2015178738A1 true WO2015178738A1 (fr) 2015-11-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106549575A (zh) * 2016-12-07 2017-03-29 中国电子科技集团公司第四十七研究所 一种多输入非隔离dc‑dc变换器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101320152B1 (ko) * 2012-06-29 2013-10-23 전남대학교산학협력단 멀티 레벨 컨버터, 이를 갖는 인버터 및 이를 갖는 태양광 전원 공급 장치
KR101350532B1 (ko) * 2012-06-29 2014-01-15 전남대학교산학협력단 멀티 레벨 컨버터, 이를 갖는 인버터 및 이를 갖는 태양광 전원 공급 장치

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101320152B1 (ko) * 2012-06-29 2013-10-23 전남대학교산학협력단 멀티 레벨 컨버터, 이를 갖는 인버터 및 이를 갖는 태양광 전원 공급 장치
KR101350532B1 (ko) * 2012-06-29 2014-01-15 전남대학교산학협력단 멀티 레벨 컨버터, 이를 갖는 인버터 및 이를 갖는 태양광 전원 공급 장치

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHOI, WOO SEOK ET AL.: "Multi-Output DC/DC Converter with Minimum Switch for Multi-Level Inverter''.", THE KOREAN INSTITUTE OF ILLUMINATION AND ELECTRICAL INSTALLATION ENGINEERS KIEE ANNUAL SPRING CONFERENCE, 2014, pages 367 - 368, [retrieved on 20140516] *
LEE, SEUNG - YUL ET AL.: "Multilevel DC/DC Converter''.", 2012 JOURNAL OF KIPE ANNUAL CONFERENCE, July 2012 (2012-07-01), pages 516p-517p *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106549575A (zh) * 2016-12-07 2017-03-29 中国电子科技集团公司第四十七研究所 一种多输入非隔离dc‑dc变换器
CN106549575B (zh) * 2016-12-07 2019-04-16 中国电子科技集团公司第四十七研究所 一种多输入非隔离dc-dc变换器

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