WO2015001745A1 - Dispositif et procédé d'alimentation - Google Patents

Dispositif et procédé d'alimentation Download PDF

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Publication number
WO2015001745A1
WO2015001745A1 PCT/JP2014/003298 JP2014003298W WO2015001745A1 WO 2015001745 A1 WO2015001745 A1 WO 2015001745A1 JP 2014003298 W JP2014003298 W JP 2014003298W WO 2015001745 A1 WO2015001745 A1 WO 2015001745A1
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WO
WIPO (PCT)
Prior art keywords
power
power supply
coil
unit
frequency
Prior art date
Application number
PCT/JP2014/003298
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English (en)
Japanese (ja)
Inventor
則明 朝岡
修 大橋
剛 西尾
正剛 小泉
Original Assignee
パナソニックＩｐマネジメント株式会社
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2015001745A1 publication Critical patent/WO2015001745A1/fr

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    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/36—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • 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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • 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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • 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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to a power supply device and a power supply method for supplying power to an external power receiving coil using electromagnetic action.
  • a non-contact charging system for charging a storage battery mounted on a vehicle using a ground power supply device.
  • the non-contact charging system when power is supplied in a state where the power receiving coil of the vehicle power receiving unit does not exist at a position facing the power feeding coil (no-load state), a person around the power feeding unit is affected by the electromagnetic field. In this case, there is a problem that safety cannot be ensured, for example, by causing a malfunction of the pacemaker.
  • Patent Document 1 a non-contact charging system that starts charging after guiding a vehicle to a power feeding unit is known (for example, Patent Document 1).
  • Patent Literature 1 after detecting the positional relationship between the power receiving coil and the power feeding coil based on an image photographed by the camera and guiding the vehicle to the power feeding unit based on the detection result of the positional relationship between the power receiving coil and the power feeding coil. Start feeding.
  • Patent Document 1 since it is necessary to mount a camera on a vehicle, there is a problem that the cost of the vehicle increases.
  • Patent Document 1 when a vehicle is guided in an environment with poor visibility such as rain or night, or when the camera lens is dirty, the positional relationship between the power receiving coil and the power feeding coil is accurately detected. I can't. As a result, a positional deviation occurs between the power receiving coil and the power feeding coil.
  • power feeding is started in this state, there is a problem that an electromagnetic field is affected on a person around the power feeding unit.
  • An object of the present invention is to provide a power feeding device that can determine whether or not a power receiving coil is present at a position facing the power feeding coil without using a camera.
  • a power supply device is a power supply device that supplies electric power to an external power receiving coil using electromagnetic action, and includes a power supply coil that supplies power using electromagnetic action, and a frequency characteristic related to the power supply coil.
  • a frequency characteristic acquisition unit to acquire; a resonance frequency specifying unit that specifies the number of resonance frequencies based on the frequency characteristic; and a control unit that determines presence or absence of the power receiving coil based on the number of resonance frequencies.
  • a power feeding method is a power feeding method for supplying power to an external power receiving coil by using an electromagnetic action, wherein the power feeding method supplies power to the power feeding coil by using an electromagnetic action, and relates to the power feeding coil.
  • a frequency characteristic acquisition step for acquiring a frequency characteristic; a resonance frequency specifying step for specifying the number of resonance frequencies based on the frequency characteristic; and a determination step for determining the presence or absence of the power receiving coil based on the specified number of resonance frequencies And having.
  • the present invention it is possible to determine whether or not a power receiving coil is present at a position facing the power feeding coil without using a camera.
  • the block diagram which shows the structure of the charging system in Embodiment 1 of this invention The block diagram which shows the structure of the electric power feeding part and electric power feeding side control part in Embodiment 1 of this invention.
  • movement of the electric power feeder which concerns on Embodiment 1 of this invention. Flow chart showing a frequency characteristic acquisition method according to Embodiment 1 of the present invention.
  • the flowchart which shows the peak determination method in Embodiment 1 of this invention The figure which shows the frequency characteristic in Embodiment 1 of this invention Relationship between transmission efficiency versus frequency and coil current on the feeding side Schematic diagram showing a modification of the power receiving coil according to the first embodiment of the present invention.
  • Embodiment 2 of this invention The block diagram which shows the structure of the electric power feeding part and electric power feeding side control part in Embodiment 2 of this invention.
  • Flow chart showing a frequency characteristic acquisition method in Embodiment 2 of the present invention The flowchart which shows the peak determination method in Embodiment 2 of this invention
  • the charging system 10 includes a power feeding device 100, a vehicle 150, and a power feeding side operation unit 160.
  • FIG. 1 shows a power supply state in which the power supply coil 104a and the power reception coil 154a face each other.
  • the power feeding device 100 is installed or embedded on the ground such that the power feeding unit 104 is exposed from the ground surface g.
  • the power supply device 100 is provided in a parking space, for example, and supplies power to the power receiving unit 154 by facing the power receiving unit 154 while the vehicle 150 is parked.
  • power feeding performed to determine whether or not the power receiving coil 154a exists at a position facing the power feeding coil 104a (hereinafter referred to as “preliminary power feeding”).
  • main power supply performed to supply power to the storage battery 152 (hereinafter referred to as “main power supply”).
  • power supply includes both standby power supply and main power supply. The configuration of the power supply apparatus 100 will be described later.
  • the vehicle 150 is, for example, a vehicle that runs on the electric power of the storage battery 152 such as HEV (Hybrid Electric Vehicle), PHEV (Plug-in Hybrid Electric Vehicle), or EV (Electric Vehicle). Details of the configuration of the vehicle 150 will be described later.
  • HEV Hybrid Electric Vehicle
  • PHEV Plug-in Hybrid Electric Vehicle
  • EV Electric Vehicle
  • the power supply side operation unit 160 outputs a power supply start signal indicating the start of power supply or a power supply stop signal indicating the stop of power supply to the power supply apparatus 100 by an external operation.
  • the vehicle 150 mainly includes a vehicle side operation unit 151, a storage battery 152, a vehicle side control unit 153, a power reception unit 154, and a vehicle side communication unit 155.
  • the vehicle side operation unit 151 accepts various operations by the driver and outputs a signal corresponding to the accepted operation to the vehicle side control unit 153.
  • the storage battery 152 stores electric power supplied from the power supply apparatus 100 via the power receiving unit 154.
  • the vehicle-side control unit 153 Based on the various signals input from the vehicle-side operation unit 151, the vehicle-side control unit 153 performs various processes associated with power supply or various processes associated with power supply stop on the power receiving unit 154 and the vehicle-side communication unit 155. To control.
  • the power receiving unit 154 includes a power receiving coil 154a.
  • the power reception coil 154a is supplied with power from the power supply coil 104a in a state of facing the power supply coil 104a of the power supply unit 104.
  • the power receiving unit 154 supplies the power received by the power receiving coil 154 a to the storage battery 152 according to the control of the vehicle side control unit 153.
  • the power receiving unit 154 is provided on the bottom, side, and top surface of the vehicle 150 so as to be exposed to the outside or covered with a resin casing.
  • the vehicle-side communication unit 155 generates a power-receivable signal that indicates a power-receivable state or a power-reception-disabled signal that indicates a power-receivable state according to the control of the vehicle-side control unit 153, and the generated power-receivable signal or A power reception impossible signal is transmitted to the power supply apparatus 100.
  • the power reception enable signal is transmitted when the storage battery 152 needs to be charged, or when the vehicle side is capable of receiving power without detecting leakage or the like.
  • the power reception impossibility signal is transmitted when the storage battery 152 is in a fully charged state and power reception is not necessary, or when the vehicle side is incapable of receiving power due to detection of electric leakage or the like.
  • the power supply apparatus 100 mainly includes a power supply side communication unit 101, a storage unit 102, a power supply side control unit 103, and a power supply unit 104.
  • the power supply side communication unit 101 receives a power reception enable signal or a power reception impossible signal from the vehicle side communication unit 155.
  • the power supply side communication unit 101 outputs the received power reception enable signal or power reception disabled signal to the power supply side control unit 103.
  • the storage unit 102 stores a peak reference value of the current value of the power feeding coil 104a in advance.
  • the storage unit 102 stores drive frequency information of frequency start values, end values, and step values in advance.
  • the peak reference value is a value that can be set in advance for each power supply apparatus 100 according to the design of the power supply apparatus 100.
  • the power supply side control unit 103 controls the power supply unit 104 to perform preliminary power supply when a power supply start signal is input from the power supply side operation unit 160.
  • the power supply side control unit 103 controls the power supply unit 104 so that power is supplied while sequentially changing the frequency to the power supply coil 104a during the preliminary power supply, and the frequency characteristic of the current value flowing through the power supply coil 104a is controlled. Get the number of peaks.
  • the power feeding side control unit 103 determines whether or not the power receiving coil 154a exists at a position facing the power feeding coil 104a based on the acquired number of peaks of the current value of the power feeding coil 104a.
  • the peak is a maximum value of the frequency characteristic.
  • the power feeding side control unit 103 when the current value has two or more peaks in the frequency characteristic of the current value of the power feeding coil 104a, the power feeding side control unit 103 has the power receiving coil 154a at a position facing the power feeding coil 104a. It is determined to be. On the other hand, when the current value of the power feeding coil 104a has one peak, the power feeding side control unit 103 determines that the power receiving coil 154a does not exist at a position facing the power feeding coil 104a.
  • the power supply side control unit 103 determines that the power reception coil 154a exists at a position facing the power supply coil 104a (for example, in the state of FIG. 1), does the power supply side control unit 103 satisfy a predetermined main power supply start requirement? Determine whether or not. In addition, when it is determined that the power receiving coil 154a does not exist at a position facing the power feeding coil 104a, the power feeding side control unit 103 controls the power feeding unit 104 not to start the main power feeding.
  • the power supply start requirement is, for example, a requirement that the power receiving coil 154a and the power supply coil 104a face each other without being displaced (for example, within a range of a displacement width of 5 cm or less).
  • the determination of whether or not the power receiving coil 154a exists at the position facing the power supply coil 104a in the preliminary power supply since it is separately determined whether or not the main power supply start requirement is satisfied, Even if the strict requirements are not satisfied, it can be determined that the power receiving coil 154a exists at a position facing the power feeding coil 104a.
  • the power supply side control unit 103 satisfies the main power supply start requirement and controls the power supply unit 104 to start the main power supply when a power reception enable signal is input from the power supply side communication unit 101. At this time, the power feeding coil 104a and the power receiving coil 154a are opposed to each other.
  • the power supply side control unit 103 does not start power supply or stops power supply when a power supply stop signal is input from the power supply side operation unit 160 or when a power reception disable signal is input from the power supply side communication unit 101.
  • the power feeding unit 104 is controlled. Details of the configuration of the power supply side control unit 103 will be described later.
  • the power feeding unit 104 has a power feeding coil 104a.
  • the power supply unit 104 supplies power to the power supply coil 104 a while sequentially changing the frequency according to the control of the power supply side control unit 103 during preliminary power supply, and the current value of the power supply coil 104 a at that time is supplied to the power supply side control unit 103. Output to.
  • the power feeding unit 104 performs preliminary power feeding from the power feeding coil 104a while sequentially changing the frequency according to the control of the power feeding side control unit 103, and also performs main power feeding.
  • the power feeding unit 104 feeds power from the power feeding coil 104a to the power receiving coil 154a using an electromagnetic action, for example, by an electromagnetic induction method or a magnetic resonance method.
  • the power feeding unit 104 mainly includes a switching unit 201, an AC / DC conversion device 202, an inverter 203, a current detection unit 204, and a power feeding coil 104a.
  • FIG. 2 shows a configuration for determining whether or not the power receiving coil 154a exists at a position facing the power feeding coil 104a based on the number of peaks of the current value of the power feeding coil 104a.
  • the switching unit 201 opens and closes the connection between the external power source (external AC power source) and the AC / DC converter 202 according to the control of the power supply control unit 214.
  • the AC / DC converter 202 converts AC electrical energy supplied from an external power source via the switching unit 201 into DC electrical energy and supplies it to the inverter 203 under the control of the power supply control unit 214.
  • the inverter 203 converts the DC power supplied from the external power source through the AC / DC converter 202 into AC power and supplies power while sequentially changing the frequency according to the control of the power supply control unit 214 when performing preliminary power supply. It supplies to the coil 104a.
  • the inverter 203 converts the DC power supplied via the AC / DC converter 202 into AC power and supplies the AC power to the power supply coil 104a according to the control of the power supply control unit 214.
  • the current detection unit 204 measures the current value of the AC power supplied from the inverter 203 to the power supply coil 104 a during preliminary power supply, and outputs the measurement result of the current value to the frequency characteristic acquisition unit 211 of the power supply side control unit 103. To do.
  • the power supply coil 104 a supplies power by receiving supply of AC power from the inverter 203.
  • the power supply coil 104a receives power supply from the inverter 203 to perform preliminary power supply while sequentially changing the frequency, and also performs main power supply to the power reception coil 154a with higher power than the preliminary power supply.
  • the power supply side control unit 103 mainly includes a frequency characteristic acquisition unit 211, a peak determination unit 212, a power reception unit presence / absence determination unit 213, and a power supply control unit 214.
  • the frequency characteristic acquisition unit 211 acquires a frequency characteristic related to the power supply coil 104a when AC power is supplied via the current detection unit 204.
  • the frequency characteristic related to the power supply coil 104a is a frequency characteristic of a current value related to the current flowing through the power supply coil 104a or a voltage value related to the voltage applied to the power supply coil 104a.
  • the frequency characteristic acquisition unit 211 acquires the frequency characteristic of the current value that flows directly through the feeding coil 104a as the current value related to the current flowing through the feeding coil 104a.
  • the frequency characteristic of the current value of the power supply coil 104a acquired by the frequency characteristic acquisition unit 211 is the frequency characteristic of the power transmission efficiency between the power supply coil 104a and the power reception coil 154a (of the transmission efficiency between the power supply coil 104a and the power reception coil 154a). Frequency characteristics). Details of the relationship between the frequency characteristic of the current value of the feeding coil 104a and the frequency characteristic of the transmission efficiency of the feeding coil 104a will be described later.
  • the frequency characteristic acquisition unit 211 outputs the acquired frequency characteristic to the storage unit 102, and the storage unit 102 stores this. Further, the frequency characteristic acquisition unit 211 outputs the acquired frequency characteristic to the peak determination unit 212.
  • the peak determination unit 212 acquires the number of peaks in the frequency characteristics of the current value flowing through the power supply coil 104a during preliminary power supply. That is, the peak determination unit 212 detects the peak (maximum value) by sequentially comparing the measurement result of the current value input from the current detection unit 204 and the peak reference value stored in the storage unit 102, Count the number of detected peaks. In other words, the peak determination unit 212 counts the number of resonance frequencies based on the value of the current flowing through the feeding coil 104a. The peak determination unit 212 outputs the counted number of peaks to the power reception unit presence / absence determination unit 213 as peak number information.
  • the power reception unit presence / absence determination unit 213 determines whether or not the power reception coil 154a is present at a position facing the power supply coil 104a based on the number of peaks in the peak number information input from the peak determination unit 212 during preliminary power supply. Determine whether.
  • the power receiving unit presence / absence determining unit 213 outputs a determination result as to whether or not the power receiving coil 154a exists at a position facing the power feeding coil 104a to the power supply control unit 214.
  • the power supply control unit 214 reads drive frequency information stored in the storage unit 102 in order to start preliminary power supply when a power supply start signal is input from the power supply side operation unit 160. Then, the power supply control unit 214 closes the switching unit 201 and puts the external power supply and the inverter 203 into a connected state via the AC / DC conversion device 202. In addition, the power supply control unit 214 controls the AC / DC converter 202 and the inverter 203 so as to change the frequency of the AC power supplied to the power supply coil 104a based on the drive frequency information, and the constant voltage is applied to the power supply coil 104a. DC power is supplied at.
  • the power supply control unit 214 satisfies the predetermined main power feeding start requirement. The process for making such a determination is started.
  • the power supply control unit 214 opens the switching unit 201 to connect the external power source and the AC The DC / DC converter 202 is disconnected. As a result, the supply of power from the external power supply to the feeding coil 104a is stopped. In this case, the power supply apparatus 100 does not perform the main power supply.
  • the power supply control unit 214 determines that the power supply start requirement is satisfied, and performs the following process when a power reception enable signal is input from the power supply side communication unit 101. That is, the power supply control unit 214 maintains the connection state between the external power supply and the AC / DC converter 202 while keeping the switching unit 201 closed. In addition, the power supply control unit 214 controls the AC / DC conversion device 202 and the inverter 203 so as to output a larger amount of power than in the standby power supply. As a result, the power supply unit 104 performs the main power supply with higher power than the standby power supply.
  • the power supply control unit 214 opens the switching unit 201 when a power supply stop signal is input from the power supply side operation unit 160 or a power reception disable signal is input from the power supply side communication unit.
  • the external power supply and the AC / DC converter 202 are disconnected from each other.
  • the supply of power from the external power source to the power supply coil 104a via the AC / DC converter 202 and the inverter 203 is stopped.
  • the AC / DC converter 202 and the inverter 203 are controlled so as to stop power feeding.
  • the power supply control unit 214 of the power supply side control unit 103 determines whether or not there is a request for the main power supply when a power supply start signal is input from the power supply side operation unit 160 (step ST301).
  • step ST301 NO
  • the power supply control unit 214 repeats the process of step ST301.
  • step ST301 when power supply control section 214 determines that there is a request for the main power supply (step ST301: YES), it controls AC / DC converter 202 and inverter 203.
  • the frequency characteristic acquisition part 211 performs the frequency characteristic acquisition process of the electric current value of the electric power supplied to the electric power feeding coil 104a (step ST302).
  • the frequency characteristic acquisition method will be described later.
  • the peak determination unit 212 performs a peak determination process for counting the number of peaks (maximum values) based on the measured current value obtained from the current detection unit 204 (step ST303).
  • the peak determination method will be described later.
  • the power receiving unit presence / absence determining unit 213 determines whether or not there are two or more peaks in the current value (step ST304).
  • step ST304 When power receiving unit presence / absence determining unit 213 determines that there are no two or more peaks in the current value (step ST304: NO), power receiving unit 154 in which power receiving unit 154 does not exist at a position facing power feeding unit 104 is determined. It determines with "no” (step ST305), and complete
  • step ST304 determines that there are two or more peaks in the current value (step ST304: YES)
  • step ST304 determines that there are two or more peaks in the current value
  • step ST306 determines that unit 154 is “present”
  • the power supply control unit 214 determines whether or not predetermined power supply start requirements are satisfied (step ST307).
  • step ST307 NO
  • the power supply control unit 214 ends the process. As a result, the power supply apparatus 100 does not start the main power supply.
  • step ST307 when it is determined that the predetermined main power supply start requirement is satisfied (step ST307: YES), the power supply control unit 214 performs the main power supply control process (step ST308). As a result, the power supply apparatus 100 starts the main power supply.
  • the electric power feeder 100 stops this electric power feeding, when the storage battery 152 becomes a full charge etc., when a power reception impossible signal is received.
  • step ST303 after the frequency characteristic acquisition process in step ST302 is completed, the peak determination process in step ST303 is performed. However, the frequency characteristic acquisition process in step ST302 and the peak determination process in step ST303 are performed in parallel. May be.
  • the power supply control unit 214 acquires and sets the start value Fa, the end value Fb, and the step value Fs of the frequency F, which is drive frequency information stored in the storage unit 102 (step ST401).
  • the power supply control unit 214 sets the start value Fa as the frequency F (step ST402).
  • the power supply control unit 214 sets the voltage value Vs of power supplied to the power feeding coil 104a (step ST403).
  • the power supply control unit 214 closes the switching unit 201 and operates the AC / DC converter 202 so that the power supplied to the power feeding coil 104a becomes the constant voltage Vs, and is also supplied to the power feeding coil 104a.
  • the inverter 203 is operated so that the power to be generated is based on the frequency Fa (step ST404).
  • the current detection unit 204 detects the current value Ik, and the frequency characteristic acquisition unit 211 acquires the detected current value Ik (step ST405).
  • the power supply control unit 214 adds the step value Fs to the frequency F (step ST406).
  • the power supply control unit 214 determines whether or not the frequency F is equal to or higher than the end value Fb (step ST407).
  • step ST407 NO
  • the power supply control unit 214 returns to the process of step ST404.
  • step ST407 when frequency F is equal to or higher than end value Fb (step ST407: YES), power supply control unit 214 stops AC / DC converter 202 and inverter 203 (step ST408).
  • the end value Fb is set to a higher frequency side than the start value Fa, so that the step value Fs is added to the frequency F in step ST406.
  • the end value Fb is set to a lower frequency side than the start value Fa.
  • the step value Fs may be subtracted from the frequency F. Further, the frequency F may be increased or decreased.
  • the peak determination unit 212 reads the peak reference value Ip stored in the storage unit 102 (step ST501).
  • the peak determination unit 212 starts a search (step ST502).
  • the peak determination unit 212 acquires the current value Ik of the power feeding coil 104a from the current detection unit 204 (step ST503).
  • the peak determination unit 212 determines whether or not the current value Ik is included in a predetermined range H (see FIG. 6) including the peak reference value Ip (step ST504). For example, the peak determination unit 212 determines whether or not the current value Ik is included in a range of, for example, ⁇ 0.5 A (Ip ⁇ 0.5 A) of the peak reference value Ip.
  • step ST504 determines that the current value Ik is included in the predetermined range H (step ST504: YES).
  • the peak determination unit 212 determines whether or not the predetermined range H is continuously in the previous time and this time. (Step ST505).
  • step ST505 If the peak determination unit 212 determines that it is not continuously within the predetermined range H (step ST505: NO), it adds “1” as the peak number (step ST506), and ends the search (step ST507). ).
  • step ST504 when determining that the current value Ik is not included in the predetermined range H in step ST504 (step ST504: NO), the peak determination unit 212 determines that the current value Ik is continuously within the predetermined range H in step ST505. In the case (step ST505: YES), the process is skipped to step ST507.
  • FIG. 6A shows the frequency characteristics of the current value of the power feeding coil 104a when the power receiving coil 154a is present at a position facing the power feeding coil 104a.
  • FIG. 6B shows the frequency characteristics of the current value of the power feeding coil 104a when the power receiving coil 154a is not present at a position facing the power feeding coil 104a.
  • the power supply coil 104a if the energy that is transmitted is the transmitted power, the energy that is not transmitted is reflected and returned to the external power source as reflected power. By detecting the current value of the reflected power by the current detection unit 204, the no-load state can be detected only by the power feeding apparatus 100.
  • the power receiving coil 154a is present at a position facing the power feeding coil 104a depending on the number of current value peaks (maximum values) of the power feeding coil 104a in the predetermined frequency range W. It can be determined whether or not.
  • the frequency characteristic of the current value when the power receiving coil 154a is present at a position facing the power feeding coil 104a is located between the peaks on the frequency axis. It has a symmetric shape with respect to the minimum value (value taken when the function is minimum). It has also been found that the frequency fs at the minimum value located between the peaks does not change depending on the conditions. From this, the minimum value frequency fs is stored in advance, and in the frequency characteristic acquisition process, the frequency characteristic acquisition process is performed only on the lower frequency side than the minimum value frequency fs or on the higher frequency side than the minimum value frequency fs. You may go. As shown in FIG. 6B, the minimum value frequency fs substantially coincides with the resonance frequency (referred to as the natural resonance frequency) of the feeding coil 104a when the power receiving coil 154a is not present.
  • the resonance frequency referred to as the natural resonance frequency
  • the presence / absence of the power receiving unit is determined based on whether there are two or more peaks. In this case, the presence / absence of the power receiving unit is determined based on whether there are one or more peaks. .
  • the same effect as when detecting the presence or absence of the power receiving unit with two or more peaks is achieved while shortening the time required for frequency characteristic acquisition. Can be obtained.
  • the case where the current value Ik is continuously within the predetermined range H means that the previous current value Ik is within the predetermined range H as shown in FIG.
  • the current value Ik is P2 within a predetermined range H.
  • the peak determination unit 212 determines that the number of peaks is “2”, an erroneous determination is made. Therefore, the peak determination unit 212 does not count the current value Ik of P2 that is continuously within the predetermined range H as the number of peaks. Thereby, the erroneous detection of the number of peaks in the peak determination part 212 can be prevented.
  • the coupling coefficient changes due to the distance between the power feeding coil 104a and the power receiving coil 154a and the influence of the axis deviation.
  • the transmission efficiency is ⁇
  • the current value of the feeding coil 104a is I 1
  • each can be expressed as a function consisting of the drive frequency f and the coupling coefficient k as shown in equation (1).
  • V power supply voltage ⁇ : constant
  • the transmission efficiency ⁇ and current value I 1 of the feeding coil 104a respectively uniquely determined with respect to the driving frequency f.
  • the current value I 1 of the feeding coil 104a shows a characteristic having two resonance frequencies f 3, f 4 (maximum point) ((2) below reference expression). That is, transmission efficiency ⁇ is correlated with the current value I 1.
  • FIG. 7 shows the relationship between the transmission efficiency with respect to the frequency and the feeding side coil current (current flowing through the feeding coil 104a).
  • the current value I 1 flowing through the power feeding coil 104 a has a correlation with the input current value of the AC / DC converter 202 or the output current value of the AC / DC converter 202. That is, the current value I 1 flowing through the power feeding coil 104 a can be estimated from the input current value of the AC / DC converter 202 or the output current value of the AC / DC converter 202.
  • the switching unit 201 and the AC / D The frequency characteristic of the transmission efficiency may be obtained using the current value measured between the C converters 202 or between the AC / DC converter 202 and the inverter 203.
  • the frequency characteristic similar to the transmission efficiency can be obtained with the current value of the power feeding coil 104a, it is not necessary to perform wireless communication with the vehicle 150, and the transmission efficiency is obtained only by the processing in the power feeding apparatus 100. Frequency characteristics can be obtained.
  • FIG. 8 shows a modification of the power receiving coil.
  • the power receiving coil 1541 on the power receiving side shown in FIG. 8 is configured by connecting a plurality of power receiving coils 154b and rectifiers in an array.
  • the frequency characteristic line of the current value flowing through the feeding coil 104a is not two peaks (bimodal) shown in FIG. It will be more mountains.
  • the power feeding unit 154 is present by determining three or more peaks, that is, three or more resonance frequencies.
  • the main power feeding is started when erroneously detected by the means. Can be prevented, and safety against adverse effects caused by electromagnetic fields can be further improved.
  • the other means for example, a case where communication established only in a very narrow range between the vehicle side communication unit 155 and the power supply side communication unit 101 is considered.
  • the erroneous detection may be a case where communication with the power supply side communication unit installed in the adjacent parking space is established due to the influence of the surrounding environment such as weather.
  • the present embodiment it is possible to determine whether or not the power receiving coil 154a exists at a position facing the power feeding coil 104a only by the operation on the power feeding side. Therefore, the above communication problem does not occur.
  • the peak can be detected by a simple method by detecting the peak by comparing the peak reference value with the current value detected by the current detection unit 204.
  • the number of peaks is counted as “1”, thereby erroneously detecting the number of peaks. Can be prevented.
  • the current detection unit 204 is provided between the inverter 203 and the power feeding coil 104a.
  • the current detection unit 204 is provided between the AC / DC conversion device 202 and the inverter 203 or the switching unit 201 and the AC / DC conversion.
  • a current detection unit 204 may be provided between the device 202 and the apparatus 202.
  • the presence or absence of a peak is determined by comparison with the peak reference value stored in the storage unit 102, but the peak (from the comparison result between the current value detected last time and the current value detected this time)
  • the presence or absence of a maximum point can also be determined.
  • the presence or absence of a peak (maximum point) can also be determined based on a differential value of a function with a frequency representing a frequency characteristic line of the current value as a variable.
  • Embodiment 2 The operation of the power supply apparatus according to Embodiment 2 of the present invention is the same as that in FIG.
  • a configuration of power feeding unit 900 according to Embodiment 2 of the present invention will be described with reference to FIG.
  • the charging system, the vehicle, and the power supply apparatus according to the second embodiment of the present invention include a power supply unit 900 instead of the power supply unit 104 and a power supply side control unit 910 instead of the power supply side control unit 103. Since it is the same structure as 1, description is abbreviate
  • FIG. 9 is different from the power supply unit 104 according to the first embodiment shown in FIG. 2 in that a voltage detection unit 205 is added except for the current detection unit 204.
  • a voltage detection unit 205 is added except for the current detection unit 204.
  • the power feeding unit 900 mainly includes a switching unit 201, an AC / DC conversion device 202, an inverter 203, a power feeding coil 104a, and a voltage detection unit 205.
  • FIG. 9 shows a configuration for determining whether or not the power receiving coil 154a exists at a position facing the power feeding coil 104a based on the number of peaks of the voltage value of the power feeding coil 104a.
  • the AC / DC converter 202 and the inverter 203 supply constant-current AC power to the power supply coil 104a according to the control of the power supply control unit 914 during the preliminary power supply.
  • the AC / DC converter 202 and the inverter 203 supply AC power of a predetermined voltage and current to the power supply coil 104a according to the control of the power supply control unit 914 during the main power supply. Large power is supplied to the power feeding coil 104a during the main power feeding than during the preliminary power feeding.
  • the voltage detection unit 205 measures the voltage value of the DC power supplied from the AC / DC converter 202 to the inverter 203, for example, during preliminary power supply, and obtains the frequency characteristic measurement result of the power supply side control unit 910. Output to the unit 911.
  • the power supply side control unit 910 illustrated in FIG. 9 includes a frequency characteristic acquisition unit 911 instead of the frequency characteristic acquisition unit 211, as compared with the power supply side control unit 103 according to the first embodiment illustrated in FIG.
  • a peak determination unit 912 is provided instead of the unit 212, and a power supply control unit 914 is provided instead of the power supply control unit 214.
  • FIG. 9 parts having the same configuration as in FIG.
  • the power supply side control unit 910 mainly includes a frequency characteristic acquisition unit 911, a peak determination unit 912, a power reception unit presence / absence determination unit 213, and a power supply control unit 914.
  • the frequency characteristic acquisition unit 911 acquires a frequency characteristic of a voltage applied to the power supply coil 104a when AC power is supplied as a frequency characteristic related to the power supply coil 104a.
  • the frequency characteristic of the voltage value applied to the feeding coil 104a acquired by the frequency characteristic acquisition unit 911 is the same frequency characteristic as the frequency characteristic of the transmission efficiency described above.
  • the frequency characteristic acquisition unit 911 outputs the acquired frequency characteristic to the storage unit 102, and the storage unit 102 stores this.
  • the frequency characteristic acquisition unit 911 outputs the acquired frequency characteristic to the peak determination unit 912.
  • the peak determination unit 912 acquires the number of peaks in the frequency characteristic of the voltage value of the power feeding coil 104a. That is, the peak determination unit 912 detects the peak (maximum value) by sequentially comparing the measurement result of the voltage value input from the voltage detection unit 205 and the peak reference value stored in the storage unit 102, Count the number of detected peaks. In other words, the peak determination unit 912 counts the number of resonance frequencies based on the voltage value applied to the power feeding coil 104a. The peak determination unit 912 outputs the counted number of peaks to the power reception unit presence / absence determination unit 213 as peak number information.
  • the power reception unit presence / absence determination unit 213 determines whether or not the power reception coil 154a is present at a position facing the power supply coil 104a based on the number of peaks in the peak number information input from the peak determination unit 912.
  • the power receiving unit presence / absence determining unit 213 outputs a determination result on whether or not the power receiving coil 154a is present at a position facing the power feeding coil 104a to the power supply control unit 914.
  • the power supply control unit 914 reads drive frequency information stored in the storage unit 102 in order to start preliminary power supply when a power supply start signal is input from the power supply side operation unit 160. Then, the power supply control unit 914 closes the switching unit 201 and connects the external power source (external AC power source) and the inverter 203 via the AC / DC converter 202. In addition, the power supply control unit 914 controls the AC / DC converter 202 and the inverter 203 so as to sequentially change the frequency of the AC power supplied to the power supply coil 104a based on the drive frequency information, and controls the power supply coil 104a. Then, control is performed so that AC power is supplied by a constant current.
  • the power supply control unit 914 satisfies the predetermined main power feeding start requirement. The process for making such a determination is started.
  • the power supply control unit 914 opens the switching unit 201 to connect the external power source and the AC The DC / DC converter 202 is disconnected. As a result, the supply of power from the external power supply to the feeding coil 104a is stopped.
  • the power supply control unit 914 determines that the power supply start requirement is satisfied, and performs the following processing when a power reception enable signal is input from the power supply side communication unit 101. That is, the power supply control unit 914 maintains the connection state between the external power supply and the AC / DC converter 202 while keeping the switching unit 201 closed. In addition, the power supply control unit 914 controls the AC / DC conversion device 202 and the inverter 203 so as to output larger power than in the case of standby power supply. As a result, the power supply unit 900 performs the main power supply with higher power than the standby power supply.
  • the power supply control unit 914 opens the switching unit 201 when a power supply stop signal is input from the power supply side operation unit 160 or a power reception disable signal is input from the power supply side communication unit.
  • the external power supply and the AC / DC converter 202 are disconnected from each other.
  • the power supply control unit 914 acquires and sets the start value Fa, the end value Fb, and the step value Fs of the frequency F, which is drive frequency information stored in the storage unit 102 (step ST801).
  • the power supply control unit 914 sets a start value Fa as the frequency F (step ST802).
  • the power supply control unit 914 sets the current value Is of the power supplied to the feeding coil 104a (step ST803).
  • the power supply control unit 914 closes the switching unit 201 and operates the AC / DC conversion device 202 and the inverter 203 so that the power supplied to the power feeding coil 104a becomes a constant current Is,
  • the inverter 203 is operated so that the power supplied to the power feeding coil 104a is based on the frequency Fa (step ST804).
  • the voltage detection unit 205 detects the voltage value Vk, and the frequency characteristic acquisition unit 911 acquires the detected voltage value Vk (step ST805).
  • power supply control section 914 adds step value Fs to frequency F (step ST806).
  • power supply control section 914 determines whether frequency F is equal to or higher than end value Fb (step ST807).
  • step ST807 NO
  • the power supply control unit 914 returns to the process of step ST804.
  • step ST807 when frequency F is equal to or higher than end value Fb (step ST807: YES), power supply control section 914 stops AC / DC converter 202 and inverter 203 (step ST808).
  • the end value Fb may be set to a lower frequency side than the start value Fa to subtract the step value Fs from the frequency F in step ST806 or F may be raised or lowered.
  • the peak determination unit 912 reads the peak reference value Vp of the feeding coil 104a at the peak, which is the peak reference value stored in the storage unit 102 (step ST901).
  • peak determination section 912 starts a search (step ST902).
  • the peak determination unit 912 acquires the voltage value Vk of the power feeding coil 104a from the voltage detection unit 205 (step ST903).
  • the peak determination unit 912 determines whether or not the voltage value Vk is included in the predetermined range H including the peak reference value Vp (step ST904). For example, the peak determination unit 912 determines whether or not the voltage value Vk is included in a range of, for example, ⁇ 0.5 V (Vp ⁇ 0.5 V) of the peak reference value Vp.
  • step ST904 determines that the voltage value Vk is included in the predetermined range H (step ST904: YES).
  • the peak determination unit 912 determines whether the previous range and the current time are within the predetermined range H. (Step ST905).
  • step ST906 When it is determined that the peak determination unit 912 is not continuously within the predetermined range H (step ST905: NO), “1” is added as the peak number (step ST906).
  • the peak determination unit 912 ends the search (step ST907).
  • step ST904 determines that the voltage value Vk is not included in the predetermined range H in step ST904 (step ST904: NO), or determines that the voltage value Vk is continuously within the predetermined range H in step ST905. In the case (step ST905: YES), the process is skipped to step ST907.
  • the frequency characteristics of the voltage value of the feeding coil 104a are the same as those in the first embodiment, and the description thereof is omitted.
  • the main power feeding is started when erroneously detected by the means. Can be prevented, and safety against adverse effects caused by electromagnetic fields can be further improved.
  • the other means for example, a case where communication established only in a very narrow range between the vehicle side communication unit 155 and the power supply side communication unit 101 is considered.
  • the erroneous detection may be a case where communication with the power supply side communication unit installed in the adjacent parking space is established due to the influence of the surrounding environment such as weather.
  • the present embodiment it is possible to determine whether or not the power receiving coil 154a exists at a position facing the power feeding coil 104a only by the operation on the power feeding side. Therefore, the above communication problem does not occur.
  • the peak can be detected by a simple method by detecting the peak by comparing the peak reference value with the voltage value detected by the voltage detection unit 205.
  • the peak number is counted as “1” to prevent erroneous detection of the peak number. be able to.
  • the voltage detection unit 205 is provided between the AC / DC converter 202 and the inverter 203. However, the voltage detection unit 205 may be provided between the inverter 203 and the power feeding coil 104a. .
  • the presence or absence of a peak is determined by comparison with the peak reference value stored in the storage unit 102.
  • the comparison result between the voltage value detected last time and the voltage value detected this time, or the voltage value may be determined based on the differential value in the frequency characteristics.
  • the power feeding start signal is input from the power feeding side operation unit 160 to the power feeding side control units 103 and 910.
  • the power feeding side communication unit 101 is changed from the vehicle side communication unit 155.
  • a power supply start signal may be input to the power supply control units 103 and 910 via the power supply control unit 103 and 910.
  • the power supply side control units 103 and 910 intermittently start and determine whether or not the power receiving coil 154a exists at a position facing the power supply coil 104a regardless of whether a power supply start signal is input. May be.
  • the frequency characteristic related to the power supply coil 104a used for the determination of the presence or absence of the power receiving unit 154 is the frequency characteristic of the current value or the voltage value of the power supply coil 104a.
  • the frequency characteristics related to the power supply coil 104a affect the current value flowing through the portion that directly affects the current flowing through the power supply coil 104a (correlation) or the voltage applied to the power supply coil 104a (correlation). Is a voltage value applied to a portion. That is, the frequency characteristic related to the power supply coil 104a may be a current value of a current flowing through the power supply coil 104a or a frequency characteristic of a current value that can estimate a current directly flowing through the power supply coil 104a.
  • the frequency characteristic related to the power supply coil 104a is a frequency characteristic of a voltage value applied to a portion that has an influence (has a correlation) on the voltage directly applied to the power supply coil 104a. Therefore, the frequency characteristic related to the power supply coil 104a may be a voltage value of a voltage applied to the power supply coil 104a or a frequency characteristic of a voltage value capable of estimating a voltage directly applied to the power supply coil 104a.
  • the power supply device is suitable for supplying electric power to a storage battery mounted on a vehicle via a power receiving unit of the vehicle.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un dispositif d'alimentation (100), qui fournit de l'énergie électrique à une unité externe de réception de puissance (154) au moyen d'une action électromagnétique. Une bobine d'alimentation (104a) fournit de l'énergie électrique au moyen d'une action électromagnétique. Une unité de commande côté alimentation (103) acquiert des caractéristiques de fréquence d'une valeur de courant traversant la bobine d'alimentation (104a) ayant été alimentée en énergie électrique par une source d'alimentation, spécifie le nombre de fréquences résonantes sur la base des caractéristiques de fréquence acquises, et détermine la présence/l'absence de l'unité de réception de puissance (154) sur la base du nombre spécifié de fréquences résonantes.
PCT/JP2014/003298 2013-07-01 2014-06-19 Dispositif et procédé d'alimentation WO2015001745A1 (fr)

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CN117937715A (zh) * 2024-03-21 2024-04-26 时代绿建(福建)工程科技有限公司 一种智能建筑光伏玻璃供电控制方法及其系统

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JP6699883B2 (ja) * 2016-02-12 2020-05-27 株式会社ダイヘン 非接触電力伝送システム、および、送電装置
WO2018020885A1 (fr) * 2016-07-29 2018-02-01 ソニーセミコンダクタソリューションズ株式会社 Dispositif de réception d'énergie et appareil électronique
EP3493364B1 (fr) * 2016-07-29 2020-11-04 Sony Semiconductor Solutions Corporation Système d'alimentation en énergie
JP7136693B2 (ja) * 2016-07-29 2022-09-13 ソニーセミコンダクタソリューションズ株式会社 給電装置

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US11370316B2 (en) * 2018-05-24 2022-06-28 Schunk Transit Systems Gmbh Contact device and rapid charging system
CN117937715A (zh) * 2024-03-21 2024-04-26 时代绿建(福建)工程科技有限公司 一种智能建筑光伏玻璃供电控制方法及其系统

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