WO2022210572A1 - Dispositif de réception de puissance et système de réception de puissance - Google Patents

Dispositif de réception de puissance et système de réception de puissance Download PDF

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Publication number
WO2022210572A1
WO2022210572A1 PCT/JP2022/015103 JP2022015103W WO2022210572A1 WO 2022210572 A1 WO2022210572 A1 WO 2022210572A1 JP 2022015103 W JP2022015103 W JP 2022015103W WO 2022210572 A1 WO2022210572 A1 WO 2022210572A1
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WO
WIPO (PCT)
Prior art keywords
power
power receiving
receiving device
output
voltage
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Application number
PCT/JP2022/015103
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English (en)
Japanese (ja)
Inventor
向志 秋政
直章 藤居
Original Assignee
パナソニックＩｐマネジメント株式会社
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Publication of WO2022210572A1 publication Critical patent/WO2022210572A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • 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
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks

Definitions

  • the present disclosure relates to a power receiving device and power receiving system, and more particularly to a power receiving device and power receiving system for controlling output power to a load.
  • the wiring duct connection member described in Patent Document 1 is characterized by having a connecting portion that is electrically connected to a conductor provided in the wiring duct as it is inserted into the wiring duct.
  • the present disclosure is made in view of the above reasons, and aims to provide a power receiving device and a power receiving system that can reduce the possibility that power supply from a DC power supply will stop.
  • a power receiving device includes a first terminal, a second terminal, a converter, a voltage detection section, and an output control section.
  • the first terminal is connected to a DC bus supplied with DC power from a DC power supply.
  • a load is connected to the second terminal.
  • the converter converts at least one of voltage and current input from the DC bus and outputs the converted voltage to the load.
  • the voltage detection section detects an input voltage of the first terminal.
  • the output control section controls output power of the converter based on the input voltage detected by the voltage detection section.
  • the output control unit starts suppressing the output power when the input voltage becomes equal to or less than a first set voltage, and the input voltage becomes equal to or greater than a second set voltage that is higher than the first set voltage. In this case, the suppression of the output power is stopped.
  • a power receiving system includes one or more power receiving devices, and a DC bus to which DC power is supplied from a DC power supply.
  • the one or more power receiving devices are connected to the DC bus.
  • FIG. 1 is a schematic circuit diagram of a power receiving system according to an embodiment.
  • FIG. 2 is a schematic perspective view of the same power receiving system.
  • FIG. 3 is a side cross-sectional view of a DC bus and a power receiving device included in the power receiving system.
  • FIG. 4 is an exploded perspective view of a main part of the power receiving system of the same.
  • FIG. 5 is a schematic perspective view of a DC bus and a power receiving device included in the power receiving system;
  • FIG. 6 is a flow chart for explaining an output power suppression operation in the power receiving system.
  • FIG. 7 is an explanatory diagram for explaining the suppression operation of the output power in the first state of the power receiving system of the same.
  • FIG. 8 is a graph showing an example of temporal changes in input power, output power, and input voltage in the same power receiving system.
  • FIG. 9 is an explanatory diagram for explaining the suppression operation of the output power in the second state of the power receiving system.
  • a power receiving device 1 according to an embodiment of the present disclosure and a power receiving system 2 including the power receiving device 1 will be described in detail with reference to the drawings.
  • Each drawing described in the following embodiments is a schematic drawing, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual dimensional ratio. .
  • the following embodiments (including modifications) may be combined as appropriate and implemented.
  • a power receiving system 2 includes one or more power receiving devices 1 and a DC bus 4 to which DC power is supplied from a DC power supply 3, as shown in FIG.
  • One or more power receiving devices 1 are connected to the DC bus 4 .
  • the power receiving device 1 includes a first terminal 11 , a second terminal 12 , a converter 13 , a voltage detection section 14 and an output control section 15 .
  • a first terminal 11 is connected to the DC bus 4 .
  • a load 5 is connected to the second terminal 12 .
  • the converter 13 converts at least one of voltage and current input from the DC bus 4 and outputs the converted voltage to the load 5 .
  • the voltage detection section 14 detects the input voltage Vin of the first terminal 11 .
  • Output control unit 15 controls output power Pout of converter 13 based on input voltage Vin detected by voltage detection unit 14 .
  • the output control unit 15 starts suppressing the output power Pout and sets the second set voltage where the input voltage Vin is higher than the first set voltage V1.
  • suppression of the output power Pout is stopped.
  • stop referred to here may be a temporary stop (suspension) or an end.
  • the output power Pout to the load 5 connected to the DC bus 4 becomes larger than the rated power of the DC power supply 3, the input voltage Vin drops.
  • the output power Pout is suppressed when the input voltage Vin becomes equal to or lower than the first set voltage V1, it is possible to suppress the input voltage Vin from becoming unstable. Moreover, this can prevent the output power Pout from becoming excessively large, and can reduce the possibility that the power supply from the DC power supply 3 to the DC bus 4 will stop.
  • FIG. 1 Details (2.1) Overall Configuration
  • the configuration of the power receiving system 2 according to the present embodiment will be described in detail with reference to FIGS. 1 to 5.
  • FIG. Note that the numerical values, shapes, positions of constituent elements, positional relationships and connection relationships among a plurality of constituent elements, and the like shown below are examples, and are not intended to limit the present disclosure.
  • the drawings referred to below are all schematic drawings, and the size and length of each component in the drawings do not necessarily reflect the actual dimensions. 3 to 5, the arrows representing the front/rear, left/right, and up/down directions are only shown for the sake of explanation, and are not substantial.
  • the power receiving system 2 includes a DC bus 4 and one or more (three in this embodiment) power receiving devices 1 connected to the DC bus 4, as shown in FIGS. Furthermore, in this embodiment, the power receiving system 2 includes a DC power supply 3 such as an AC adapter that supplies DC power to the DC bus 4 .
  • a DC power supply 3 such as an AC adapter converts AC power supplied from an AC power supply 6 into DC power and supplies the DC power to a DC bus 4 .
  • the DC bus 4 has a main body 41, two conductive bars (first conductive bar 42A and second conductive bar 42B), and a power supply member 43, as shown in FIG.
  • the main body 41 is formed in the shape of an elongated rectangular parallelepiped, and a groove 413 extending in the longitudinal direction is provided on one surface of the main body 41 .
  • a power receiving device 1 which will be described later, can be connected to any position in the longitudinal direction of the groove 413 , and the power receiving device 1 is supplied with DC power from the groove 413 .
  • the main body 41 includes a metal first rail 411 and two synthetic resin second rails 412 .
  • the first rail 411 includes two fitting portions 4111, and the two fitting portions 4111 are fitted with two mounting protrusions 18 of the power receiving device 1, which will be described later.
  • the cross section of the body 41 perpendicular to the longitudinal direction of the DC bus 4 is C-shaped, and the interior of the C-shaped body 41 serves as the groove 413 .
  • the first conductive bar 42A and the second conductive bar 42B are plate-shaped members extending in the longitudinal direction of the DC bus 4, respectively, and are held by the two second rails 412 respectively.
  • the first conductive bar 42A is electrically connected to the positive electrode of the DC power supply 3 .
  • the second conductive bar 42B is electrically connected to the negative pole of the DC power supply 3 .
  • the power supply member 43 is located at the longitudinal end of the DC bus 4 as shown in FIGS.
  • the power supply member 43 has a main body 431 , a wire entry hole 432 ⁇ /b>A, a wire entry hole 432 ⁇ /b>B, and a cover 433 .
  • An electric wire 31A connected to the positive electrode of the DC power supply 3 is inserted into the wire entry hole 432A.
  • the electric wire 31A is electrically connected to the first conductive bar 42A through the wire entry hole 432A.
  • An electric wire 31B connected to the negative electrode of the DC power supply 3 is inserted into the wire entry hole 432B.
  • the electric wire 31B is electrically connected to the second conductive bar 42B through the wire entry hole 432B.
  • a cover 433 houses the main body 431 .
  • the power receiving device 1 has a housing 16 as shown in FIG.
  • the shape of the housing 16 is, for example, a rectangular parallelepiped.
  • the housing 16 has an insertion port 162 on a surface 161 opposite to the surface on which the DC bus 4 is attached, for example.
  • the receptacle 162 is a receptacle for a connector 51 (see FIG. 1) provided on the electric wire of the load 5 .
  • the power receiving system 2 will be described with an example in which the connector 51 is a USB plug. That is, in this embodiment, the socket 162 is a USB outlet.
  • the connector 51 is not limited to a USB plug, and may be a power plug or the like. If the connector 51 is a power plug, the receptacle 162 is a power outlet.
  • the power receiving device 1 further includes a cylindrical portion 20, two mounting projections 18, two power receiving terminals 19, and a release operation portion 17, as shown in FIG.
  • the tubular part 20 is cylindrical and protrudes rearward from the rear surface of the housing 16 .
  • the tubular portion 20 is inserted into the groove portion 413 of the DC bus 4 .
  • Two mounting protrusions 18 protrude in opposite directions from the peripheral surface of the tubular portion 20 .
  • the tubular portion 20 of the power receiving device 1 is inserted into the groove portion 413 so that the two mounting projections 18 protrude along the longitudinal direction of the groove portion 413 of the DC bus.
  • the power receiving device 1 is rotated by 90 degrees around the axis of the tubular portion 20 .
  • the two fitting portions 4111 provided on the main body 41 of the DC bus 4 and the two mounting protrusions 18 are respectively fitted, and the power receiving device 1 is held in the groove portion 413 of the DC bus 4 .
  • the two power receiving terminals 19 protrude rearward from the rear surface of the housing 16 . Each tip of the two power receiving terminals 19 is bent.
  • the power receiving terminal 19 on the positive side of the two power receiving terminals 19 is connected to the first conductive bar 42A on the positive side, and the power receiving terminal 19 on the negative side is connected to the first conductive bar 42A. It is connected to the second conductive bar 42B on the negative electrode side.
  • the power receiving device 1 is electrically connected to the DC bus 4 and supplied with DC power from the DC power supply 3 via the DC bus 4 .
  • the kind of the load 5 is not specifically limited.
  • Examples of the load 5 include computer terminals (personal computers, smartphones, tablet terminals, etc.), computer terminal attachments (monitors, speakers, microphones, etc.), lighting equipment (desk lights, etc.), network cameras, sensors (temperature sensors, humidity sensors, illuminance sensors, etc.), game machines and air conditioners (desktop fans, etc.).
  • the release operation section 17 is held by the housing 16 .
  • the release operation part 17 can move in a predetermined direction by applying a force.
  • a restoring force of a spring housed in the housing 16 acts on the release operation portion 17 . Therefore, when the power receiving device 1 is held in the groove 413 of the DC bus 4 and no force is applied to the release operation portion 17, the distal end portion (claw portion 171) of the release operation portion 17 does not touch the housing. 16 and inserted into the groove 413 of the DC bus 4 .
  • the casing 16 power receiving device 1
  • is restricted from rotating about the axis of the cylindrical portion 20 and is restricted from being removed from the DC bus 4 .
  • the power receiving device 1 has a power conversion unit 10 as shown in FIG. Power conversion unit 10 controls the value of output power Pout from power receiving device 1 to load 5 connected to receptacle 162 .
  • the power conversion unit 10 includes, for example, two first terminals 11, for example, two second terminals 12, a converter 13, a voltage detection unit 14, an output control unit 15, and a storage unit 101.
  • the two first terminals 11 are connected to the two power receiving terminals 19 respectively. That is, the two first terminals 11 are electrically connected to the DC bus 4 via the two power receiving terminals 19 .
  • the two second terminals 12 are respectively connected to a power supply terminal and a ground terminal provided inside a receptacle 162 which is, for example, a USB outlet.
  • the power terminal and ground terminal are terminals that are connected to the power line and ground line of the connector 51 (USB terminal) when the connector 51 (USB terminal) of the load 5 is connected to the insertion port 162 . be. That is, the two second terminals 12 are electrically connected to the load 5 via the power supply terminal and the ground terminal.
  • the converter 13 is connected to the two first terminals 11 and controls DC power (output power Pout) by DC-DC converting at least one of the voltage and current input from the DC bus 4 .
  • Converter 13 is also connected to two second terminals 12 and outputs output power Pout to load 5 .
  • the voltage detection unit 14 detects the input voltage Vin between the two first terminals 11 and outputs a signal SigVin indicating the detected input voltage Vin to the output control unit 15, as shown in FIG.
  • the output control unit 15 controls the output power Pout that the converter 13 outputs to the load 5 based on the value of the input voltage Vin indicated by the received signal SigVin. Specifically, when the input voltage Vin becomes equal to or lower than the first set voltage V1, the output control unit 15 starts suppressing the output power Pout and sets the second set voltage where the input voltage Vin is higher than the first set voltage V1. When the voltage becomes equal to or higher than the voltage V2, the suppression of the output power Pout is interrupted.
  • the storage unit 101 stores set values such as a first set voltage V1, a second set voltage V2, and a first set time T10 described later.
  • the storage unit 101 includes a rewritable non-volatile memory such as EEPROM (Electrically Erasable Programmable Read-Only Memory) and flash memory.
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • the power receiving device 1 further includes a notification unit 102 .
  • the power receiving device 1 further includes a display unit 103 .
  • Notification unit 102 notifies that output control unit 15 is suppressing output power Pout.
  • the display unit 103 is a light-emitting device including, for example, a multicolor light-emitting LED (Light Emitting Diode), and the lighting state of the display unit 103 is controlled by the notification unit 102 .
  • the notification unit 102 notifies that the output control unit 15 is suppressing the output power Pout by changing the lighting state of the display unit 103, for example.
  • two power receiving devices 1 (power receiving device 1A and power receiving device 1B) are connected to a DC bus 4, and two loads 5 (load 5A and load 5B) are connected to the power receiving device 1A and power receiving device 1B. ) are respectively connected (first state X1).
  • a DC power supply 3 is connected to the DC bus 4 , and the DC power supply 3 supplies DC power (input power Pin) to the DC bus 4 .
  • the DC power supply 3 can supply a maximum input power Pin of 100 W to the DC bus 4, but if the power consumption of the load 5 is lower than the rated power (eg 100 W), the power consumption of the load 5 The corresponding input power Pin is supplied to the DC bus 4 .
  • output power Pout (first output power PoutA) of 40 W for example, is supplied to load 5A from DC bus 4 via power receiving device 1A.
  • the converter 13 (converter 13A) included in the power receiving device 1A outputs the first output power PoutA of 40 W to the load 5A.
  • output power Pout (second output power PoutB) of 40 W is supplied to load 5B from DC bus 4 via power receiving device 1B.
  • the converter 13 included in the power receiving device 1B outputs the second output power PoutB of 40 W to the load 5B. That is, the input power Pin is 80 W, which is the sum of the first output power PoutA and the second output power PoutB. Therefore, the first state X1 is a state in which the DC power supply 3 supplies the DC bus 4 with the input power Pin of 80 W, which is less than the rated power (for example, 100 W).
  • the power supply capacity of the DC power supply 3 becomes insufficient, and the input applied to the power receiving device 1 from the DC bus 4, for example, A decrease in the voltage Vin or the like may occur.
  • the DC power supply 3 may stop supplying power.
  • the DC bus 4 applies a voltage of, for example, 24 V (input voltage Vin) to the two first terminals 11 of each of the power receiving device 1A and the power receiving device 1B.
  • FIG. 8 is a graph showing changes over time in the input power Pin supplied to the DC bus 4 by the DC power supply 3 and changes over time in the input voltage Vin.
  • Time t0 is an arbitrary time in the first state X1.
  • second state X2 a state in which another power receiving device 1 (power receiving device 1C) and another load 5 (load 5C) are connected to the DC bus 4.
  • the DC bus 4 is connected to the load 5C via the power receiving device 1C as shown in FIG.
  • Supply of output power Pout (third output power PoutC) is started. That is, the converter 13 (converter 13C) included in the power receiving device 1C starts supplying the third output power PoutC to the load 5C.
  • output of the third output power PoutC is started from time t1 as shown in FIG.
  • the input power Pin which is the sum of the first output power PoutA, the second output power PoutB, and the third output power PoutC, starts increasing from 80W from time t1.
  • the DC bus 4 applies the input voltage Vin to the two power receiving terminals 19 of each of the power receiving devices 1A to 1C.
  • the input voltage Vin is detected by the voltage detection unit 14 (voltage detection unit 14A to voltage detection unit 14C) provided in each of the power receiving devices 1A to 1C.
  • the voltage detection unit 14A to voltage detection unit 14C output a signal SigVin indicating the detection result of the input voltage Vin to the output control unit 15 (output control unit 15A to output control unit 15C) provided in each of the power receiving devices 1A to 1C. do. Based on the value of the input voltage Vin indicated by the received signal SigVin, each of output control unit 15A to output control unit 15C outputs first output power PoutA to third Control the output power PoutC.
  • the input voltage Vin decreases to the first set voltage V1, for example 23 V, as shown in FIG. 8 (ST2: YES).
  • the output control unit 15C controls the converter 13C to start suppressing the third output power PoutC (ST3).
  • the input power Pin becomes 120 W at time t3, for example. Since the output control unit 15C starts suppressing the third output power PoutC, the third output power PoutC and the input power Pin start decreasing from time t3. Along with this, the input voltage Vin starts increasing from time t3.
  • the value of the first set voltage V1 is, for example, 23 V during the first set time T10, which is, for example, 10 minutes after the converter 13 starts supplying power to the load 5 connected to the second terminal 12. It is a certain first set value V11, and after the first set time T10 has passed since the converter 13 starts supplying power to the load 5 connected to the second terminal 12, it is a second set value V12, which is, for example, 22 V. .
  • the power receiving device 1 and the load 5 communicate with each other, and information on the time when power supply to the load 5 is started is stored in the storage unit 101 of the power receiving device 1 .
  • the elapsed time from the start of power supply to the load 5 is measured by the clock function of the output control unit 15 of the power receiving device 1, for example.
  • the first set voltage V1 set in the output controller 15C is 23 V for 10 minutes after the converter 13C starts supplying power to the load 5C at time t1. Therefore, as described above, when the input voltage Vin decreases to 23 V at time t3, five minutes after time t1, the output controller 15C starts suppressing the third output power PoutC.
  • the converters 13A and 13B have started supplying power to the loads 5A and 5B, respectively, before time t0, and 15 minutes or more have passed since the power supply started at time t3.
  • the first set voltage V1 set to each of the output control units 15B is 22V. Therefore, when the input voltage Vin decreases to 23 V at time t3, as shown in FIG. 8, the output controllers 15A and 15B do not start suppressing the first output power PoutA and the second output power PoutB. As a result, among the plurality of loads 5 connected to the DC bus 4, the output power Pout of the load 5 connected later, such as the load 5C, can be preferentially suppressed. Note that the power consumption of the load 5 generally tends to be greater immediately after the start of power supply than after that, and the value of the first set time T10 is such that the power consumption immediately after the start of power supply increases. It is preferable to set the time to be longer than the time to be set.
  • the output control unit 15C suspends suppression of the third output power PoutC (ST5).
  • the input power Pin becomes 100 W as shown in FIG. Note that the first set value V11 is higher than the second set value V12 and lower than the value of the second set voltage V2.
  • the value of the first set voltage V1 is changed during the second set time T20, which is, for example, 15 minutes after the converter 13 increases the output power Pout supplied to the load 5 connected to the second terminal 12.
  • the first set value V11 is 23 V
  • the first set value V11 is 22 V, for example. 2 is the set value V12.
  • the first set time As for the value of the voltage V1 is preferentially set over the second set value V12. That is, for 15 minutes after the converter 13C increases the third output power PoutC at time t4, the first set voltage V1 that the output control unit 15C uses as a reference for starting suppression of the third output power PoutC is 23V. . Therefore, when the input voltage Vin decreases to 23 V again at time t5 after 10 minutes from time t4, the output controller 15C resumes suppression of the third output power PoutC.
  • the third output power PoutC is 40W and the input power Pin is 120W.
  • the "increase in the output power Pout" referred to here includes not only the case where the output power Pout changes from a decrease to an increase as in the above embodiment, but also the case where the output power Pout changes from a constant state to an increase.
  • the output control unit 15C suspends suppression of the third output power PoutC.
  • the third output power PoutC is 20W and the input power Pin is 100W. In this way, by controlling the time-varying third output power PoutC, for example, between 20 W and 40 W as shown in FIG. can be controlled.
  • the output control unit 15C transmits the first notification signal Sig1 to the notification unit 102C while the third output power PoutC is being suppressed.
  • the first notification signal Sig1 is a signal indicating that the output control unit 15C is suppressing the third output power PoutC.
  • the display unit 103C included in the power receiving device 1C is turned off.
  • the provided display unit 103C is made to emit red light, for example. That is, while the power receiving device 1C is suppressing the third output power PoutC, the display unit 103C emits red light, and the user visually confirms that the power receiving device 1C is suppressing the third output power PoutC. can do.
  • a user using the load 5C connected to the power receiving device 1C can change the usage of the load 5C and take measures such as lowering the third output power PoutC.
  • the notification unit 102C may change the lighting state of the display unit 103C between when it is not receiving and when it is receiving, and the method of changing the lighting state can be changed as appropriate.
  • the output control unit 15C transmits the second notification signal Sig2 to the power receiving device 1A and the power receiving device 1B while the third output power PoutC is being suppressed.
  • the second notification signal Sig2 is a signal indicating that the output control unit 15C is suppressing the third output power PoutC.
  • the second notification signal Sig2 is transmitted via the DC bus 4 by power line communication, for example. While the notification unit 102A of the power receiving device 1A and the notification unit 102B of the power receiving device 1B are receiving the second notification signal Sig2, the display units 103A and 103B emit blue light, for example.
  • the display units 103A and 103B emit blue light, and the user sees that the other power receiving device 1C is suppressing the third output power PoutC.
  • This can be visually confirmed from the appearance of the power receiving device 1 other than the power receiving device 1C. That is, the lighting state of the display unit 103 when one power receiving device 1 out of the plurality of power receiving devices 1 is suppressing the output power Pout, and the power receiving device other than one power receiving device 1 out of the plurality of power receiving devices 1 1 is suppressing the output power Pout, the lighting states of the display units 103 of the power receiving apparatuses 1 are different from each other.
  • the first power receiving device which is one power receiving device 1 among the plurality of power receiving devices 1, suppresses the output power Pout
  • the second power receiving device other than the first power receiving device among the plurality of power receiving devices 1 The lighting state of the display unit 103 of the first power receiving apparatus is different between when the apparatus suppresses the output power Pout.
  • a user using the load 5A connected to the power receiving device 1A or the load 5B connected to the power receiving device 1B changes the usage of the load 5A or the load 5B to change the first output power PoutA or the second output power PoutA. Measures such as lowering the output power PoutB can be taken.
  • the power receiving device 1 may include multiple receptacles 162 .
  • the power receiving device 1 may include an audio output device, and the notification unit 102 notifies the user that the output control unit 15 is suppressing the output power Pout by a notification sound, voice, or the like output from the audio output device. You may
  • the power receiving device 1 and the power receiving system 2 in the present disclosure include computer systems.
  • a computer system is mainly composed of a processor and a memory as hardware. Functions of the power receiving device 1 and the power receiving system 2 according to the present disclosure are realized by the processor executing a program recorded in the memory of the computer system.
  • the program may be recorded in advance in the memory of the computer system, may be provided through an electric communication line, or may be recorded in a non-temporary recording medium such as a computer system-readable memory card, optical disk, or hard disk drive. may be provided.
  • a processor in a computer system consists of one or more electronic circuits, including semiconductor integrated circuits (ICs) or large scale integrated circuits (LSIs).
  • Integrated circuits such as ICs or LSIs are called differently depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration).
  • FPGAs Field-Programmable Gate Arrays
  • a plurality of electronic circuits may be integrated into one chip, or may be distributed over a plurality of chips.
  • a plurality of chips may be integrated in one device, or may be distributed in a plurality of devices.
  • a computer system includes a microcontroller having one or more processors and one or more memories. Accordingly, the microcontroller also consists of one or more electronic circuits including semiconductor integrated circuits or large scale integrated circuits.
  • At least part of the functions of the power receiving system 2, for example, the functions of the power conversion unit 10, may be realized by the cloud (cloud computing) or the like.
  • the power receiving device (1) of the first aspect includes the first terminal (11), the second terminal (12), the converter (13), and the voltage detection section (14). and an output control unit (15).
  • the first terminal (11) is connected to a DC bus (4) supplied with DC power from a DC power supply (3).
  • a load (5) is connected to the second terminal (12).
  • the converter (13) converts at least one of the voltage and current input from the DC bus (4) and outputs it to the load (5).
  • a voltage detector (14) detects an input voltage (Vin) of a first terminal (11).
  • An output control section (15) controls the output power (Pout) of the converter (13) based on the input voltage (Vin) detected by the voltage detection section (14).
  • the output control unit (15) starts suppressing the output power (Pout) when the input voltage (Vin) becomes equal to or lower than the first set voltage (V1), and the input voltage (Vin) When the second set voltage (V2), which is larger than one set voltage (V1), is reached, the suppression of the output power (Pout) is stopped.
  • the output control section reduces the input voltage (Vin) to the first set voltage (V1 ), the suppression of the output power (Pout) is resumed.
  • the value of the first set voltage (V1) is the load (5 ) is set to the first set value (V11) for a first set time (T10) after the start of power feeding. Further, the value of the first set voltage (V1) is, after the first set time (T10) has passed since the converter (13) started supplying power to the load (5) connected to the second terminal (12), This is the second set value (V12). The first set value (V11) is higher than the second set value (V12) and lower than the value of the second set voltage (V2).
  • the value of the first set voltage (V1) is the load (5 ) is at the first set value (V11) for the second set time (T20) after the output power (Pout) supplied to ) is increased. Further, the value of the first set voltage (V1) is set for the second set time (T20 ) is the second set value (V12). The first set value (V11) is higher than the second set value (V12) and lower than the value of the second set voltage (V2).
  • the notification unit (102) notifying that the output control unit (15) is suppressing the output power (Pout) ) is further provided.
  • the power receiving device (1) is suppressing the output power (Pout).
  • a power receiving system (2) of a sixth aspect includes one or more power receiving devices (1) of any one of the first to fifth aspects and a DC bus to which DC power is supplied from a DC power supply (3). (4) and One or more power receiving devices (1) are connected to the DC bus (4).
  • the one or more power receiving devices (1) include a plurality of power receiving devices (1).
  • a plurality of power receiving devices (1) are connected to a DC bus (4).
  • the plurality of power receiving devices (1) includes a first power receiving device whose output power (Pout) is suppressed by an output control unit (15) and a second power receiving device other than the first power receiving device.
  • the first power receiving device transmits a signal indicating that the output power (Pout) is being suppressed to the second power receiving device.
  • the power receiving system (2) of the eighth aspect further includes a DC power supply (3) in the sixth or seventh aspect.
  • a DC power supply (3) converts AC power into DC power and supplies it to a DC bus (4).
  • the second to fifth aspects are not essential configurations for the power receiving device (1), and can be omitted as appropriate.
  • the seventh and eighth aspects are not essential components of the power receiving system (2), and can be omitted as appropriate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Power Sources (AREA)
  • Dc-Dc Converters (AREA)

Abstract

La présente invention aborde le problème de la fourniture d'un dispositif de réception de puissance et d'un système de réception de puissance qui permettent de réduire la possibilité que l'alimentation électrique d'une source de puissance CC soit arrêtée. Un dispositif de réception de puissance (1) comprend une première borne (11), une seconde borne (12), un convertisseur (13), une unité de détection de tension (14) et une unité de commande de sortie (15). La première borne (11) est connectée à un bus CC (4) auquel de la puissance CC est fournie par une source de puissance CC (3). La seconde borne (12) est connectée à une charge (5). Le convertisseur (13) convertit une tension et/ou un courant électrique entrés à partir du bus CC (4), et délivre en sortie la tension convertie et/ou le courant converti à la charge (5). L'unité de détection de tension (14) détecte la tension d'entrée de la première borne (11). L'unité de commande de sortie (15) commande la puissance de sortie du convertisseur (13) sur la base de la tension d'entrée qui a été détectée par l'unité de détection de tension (14). En particulier, l'unité de commande de sortie (15) commence la suppression de la puissance de sortie lorsque la tension d'entrée est inférieure ou égale à une première tension de réglage, et arrête la suppression de la puissance de sortie lorsque la tension d'entrée est supérieure ou égale à une seconde tension de réglage qui est supérieure à la première tension de réglage.
PCT/JP2022/015103 2021-03-31 2022-03-28 Dispositif de réception de puissance et système de réception de puissance WO2022210572A1 (fr)

Applications Claiming Priority (2)

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JP2021-061518 2021-03-31
JP2021061518A JP7519632B2 (ja) 2021-03-31 2021-03-31 受電装置及び受電システム

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WO2022210572A1 true WO2022210572A1 (fr) 2022-10-06

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TW (1) TWI840778B (fr)
WO (1) WO2022210572A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005190927A (ja) * 2003-12-26 2005-07-14 Matsushita Electric Works Ltd 放電灯点灯装置及び照明装置
JP2006228685A (ja) * 2005-02-21 2006-08-31 Matsushita Electric Works Ltd 放電灯点灯装置及び照明装置
JP2018081563A (ja) * 2016-11-17 2018-05-24 シャープ株式会社 電力変換装置及びその制御方法、電力供給システム
WO2020055020A1 (fr) * 2018-09-13 2020-03-19 엘에스산전 주식회사 Dispositif et système d'alimentation électrique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5891360B2 (ja) * 2011-05-12 2016-03-23 パナソニックＩｐマネジメント株式会社 配線ダクト接続部材
JP6148551B2 (ja) * 2013-06-26 2017-06-14 株式会社東芝 整流装置
US10931113B2 (en) * 2016-03-15 2021-02-23 Mitsubishi Electric Corporation Power conversion device and power system performing protection control for suppressing received power

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005190927A (ja) * 2003-12-26 2005-07-14 Matsushita Electric Works Ltd 放電灯点灯装置及び照明装置
JP2006228685A (ja) * 2005-02-21 2006-08-31 Matsushita Electric Works Ltd 放電灯点灯装置及び照明装置
JP2018081563A (ja) * 2016-11-17 2018-05-24 シャープ株式会社 電力変換装置及びその制御方法、電力供給システム
WO2020055020A1 (fr) * 2018-09-13 2020-03-19 엘에스산전 주식회사 Dispositif et système d'alimentation électrique

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JP7519632B2 (ja) 2024-07-22
TWI840778B (zh) 2024-05-01
JP2022157351A (ja) 2022-10-14

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