WO2012023690A1 - Dispositif de transfert de puissance sans fil capable de reprise - Google Patents

Dispositif de transfert de puissance sans fil capable de reprise Download PDF

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Publication number
WO2012023690A1
WO2012023690A1 PCT/KR2011/003907 KR2011003907W WO2012023690A1 WO 2012023690 A1 WO2012023690 A1 WO 2012023690A1 KR 2011003907 W KR2011003907 W KR 2011003907W WO 2012023690 A1 WO2012023690 A1 WO 2012023690A1
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WO
WIPO (PCT)
Prior art keywords
switch
power supply
supply unit
failover
feed line
Prior art date
Application number
PCT/KR2011/003907
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English (en)
Korean (ko)
Inventor
조정구
송두익
손호섭
최치영
민병덕
Original Assignee
주식회사 그린파워
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Application filed by 주식회사 그린파워 filed Critical 주식회사 그린파워
Publication of WO2012023690A1 publication Critical patent/WO2012023690A1/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
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/005—Current collectors for power supply lines of electrically-propelled vehicles without mechanical contact between the collector and the power supply line
    • 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
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas

Definitions

  • the present invention relates to a non-contact power transmission apparatus for delivering power in a non-contact manner to each transport bogie moving along two independent feed tracks.
  • a non-contact power transmission apparatus for delivering power in a non-contact manner to each transport bogie moving along two independent feed tracks.
  • one of two independent AC power supply units for applying AC power to each feeding track does not operate due to a failure, and the other AC power supply unit has two.
  • the present invention relates to a wireless power transmitter having a failover function for simultaneously supplying power to two feeding tracks.
  • the wireless power transmitter that transmits power in a non-contact manner to a transport trolley moving along the track has no mechanical contact, so it does not generate particles and speeds up a lot, so it is often used in clean room environments such as semiconductors, LCDs, and manufacturing lines. It is used.
  • the non-contact power transmission device is composed of a feed track, an AC power supply unit for transmitting a high frequency current to the feed track, a pickup device for obtaining induced electromotive force from a high frequency magnetic field generated in the feed track, and a high frequency rectifying circuit.
  • the present invention has been made in view of the above, and an object of the present invention is to provide one AC power supply from two independent AC power supply units for applying AC power to each feeding track when two non-contact power transmission devices are installed.
  • the present invention provides a wireless power transmitter having a fail-over function capable of simultaneously driving two feed tracks when the other AC power supply unit does not operate due to a malfunction.
  • the wireless power transmission apparatus provided with the failover function according to the present invention transmits electric power in a non-contact manner by magnetic induction to a transfer truck equipped with a current collector coil moving along a predetermined feed track on which a feed line is disposed.
  • the feed tracks are respectively arranged as two independent first feed tracks and second feed tracks, and the first feed line applies AC power of a predetermined frequency to the first feed line arranged along the first feed track.
  • AC power supply unit A second AC power supply unit for applying an AC power source having the same frequency as the AC power applied to the first feeder line to the second feeder line disposed along the second feed track; If one of the first AC power supply and the second AC power supply fails, the first feeder and the second feeder are connected in series so that AC power is simultaneously applied to the first feeder and the second feeder by the other operation.
  • Switch unit for switching; And a failover controller for monitoring in real time whether the first AC power supply unit and the second AC power supply unit operate, and controlling a switching connection of the switch unit.
  • the switch unit comprises a first switch for switching on and off a connection line connecting a first feed line extending and connected to a negative terminal of the first AC power supply and a second feed line extending and connected to a (+) terminal of a second AC power supply. ; A second switch for switching on and off a connecting line connecting the first feed line connected to the negative terminal of the first AC power supply unit and the second feed line extending and connected to the (-) terminal of the second AC power supply unit 200.
  • a third switch for switching on and off a connection line connecting the first feed line connected to the positive terminal of the first AC power supply and the second feed line extending and connected to the (+) terminal of the second AC power supply;
  • a fourth switch for switching on and off each node portion connection where the connection line where the first switch is located and the connection line where the second switch is located meet the first feed line;
  • a fifth switch for switching on and off respective node portions in which the connection line where the first switch is located and the connection line where the third switch is connected are connected to the second feed line;
  • a sixth switch for switching on and off a connection between a node where the second switch is located and a (-) terminal of the second AC power supply unit that meets the second feed line;
  • a seventh switch for switching on and off a connection between the node portion where the third switch is located and the positive terminal connected to the first feed line and the positive terminal of the first AC power supply.
  • the failover controller switches on the fourth switch and the fifth switch, and the first switch, the second switch, the third switch, and the sixth switch. And control to switch off the seventh switch, and the failover controller switches the first switch, the third switch, and the sixth switch when the first AC power supply fails and the second AC power supply operates normally.
  • the failover controller may be divided into two first failover controllers and a second failover controller, wherein the first failover controller monitors the state of the second AC power supply in real time and controls the switch unit according to the state.
  • the second failover controller monitors in real time the state of the first AC power supply and controls the switch according to the state.
  • the first feed line and the second feed line may each include a series resonant circuit, and a separate compensation resonance capacitor may be provided in series with respect to the first switch for switching on and off the series connection of the first feed line and the second feed line.
  • Resonant capacitors are connected in series to the first feed line and the second feed line, and each resonant capacitor forms a series resonant circuit with each of the first feed line and the second feed line.
  • each resonant capacitor is connected to the first feed line and the second feed line in parallel, and each resonant capacitor may form a parallel resonant circuit with each of the first feed line and the second feed line.
  • one AC power supply unit out of two independent AC power supply units for applying AC power to each feeding track does not operate due to a failure.
  • the power supply unit provides a backup function that simultaneously drives two feed tracks, which can prevent damage caused by AC power supply failures in an environment where it is difficult to stop the operation, such as semiconductors, LCDs, or manufacturing lines. have.
  • 1 is a conceptual diagram of a general wireless power transmitter
  • FIG. 2 is a cross-sectional view of a part of FIG. 1;
  • FIG. 3 is another embodiment of FIG.
  • FIG. 4 is another embodiment of FIG.
  • FIG. 5 is a block diagram of a wireless power transmitter of a series resonant circuit having a failover function according to the present invention.
  • FIG. 6 is a circuit diagram illustrating a switch unit state when a first AC power supply unit and a second AC power supply unit are normally driven in a wireless power transmitter having a failover function according to the present invention
  • FIG. 7 is a circuit diagram illustrating a switch unit state when a first AC power supply unit is broken in the wireless power transmitter having the failover function according to the present invention.
  • FIG. 8 is a circuit diagram illustrating a switch unit state when the second AC power supply unit in the wireless power transmitter having the failover function according to the present invention fails.
  • FIG. 9 is a circuit diagram illustrating a case where a failover controller is divided into two and implemented in two AC power supply controllers in a wireless power transmitter having a failover function according to the present invention
  • FIG. 10 is a circuit diagram illustrating another embodiment of a control method of a switch unit when a failover controller is divided into two and implemented in two AC power supply controllers in a wireless power transmitter having a failover function according to the present invention
  • FIG. 11 is a circuit diagram illustrating a case in which a separate resonant capacitor is added to solve a problem in which tuning of a characteristic impedance of a series resonant circuit becomes difficult when two feed lines are connected in series by a failover function to form a direct resonant circuit.
  • FIG. 12 is a block diagram of a general wireless power transmitter of the parallel resonance circuit method.
  • FIG. 13 is a block diagram of a wireless power transmission apparatus of a parallel resonance circuit method having a failover function according to another embodiment of the present invention.
  • a circuit diagram of a wireless power transmitter of a parallel resonance circuit method having a failover function is divided into two failover controllers to implement a failover function in a controller in two AC power supply units in a wireless power transmitter having a parallel resonance circuit type with a failover function according to another embodiment of the present invention.
  • FIG. 15 is a circuit diagram illustrating another embodiment of control of a switch unit in a wireless power transmitter of a parallel resonance circuit type having a failover function divided into two failover controllers according to another embodiment of the present invention.
  • FIG. 1 is a conceptual diagram of a general wireless power transmitter
  • FIG. 2 shows a cross-sectional view of a part of a pickup apparatus and a power feeding track in FIG.
  • the general configuration of the wireless power transmitter includes feed tracks 11 and 21 including feed lines, an AC power supply V for flowing a high frequency current to the feed tracks, and a secondary winding (31) to the magnetic core 32 and the magnetic core.
  • Pickup device that is configured to be wound and fixed to the feed cart moving along the feed track, and is fitted with a certain airgap on the feed line, and supplies electric power induced to the secondary winding by magnetic induction to the feed cart moving along the track.
  • the principle of transmitting power wirelessly is the same as that of the transformer, which will be described in detail with reference to FIG. 2.
  • the feeder becomes the primary winding of the transformer
  • the magnetic core 32 of the pick-up device becomes the transformer core
  • the winding wound around the magnetic core 32 becomes the secondary winding of the transformer. Therefore, when the AC power supply unit flows an AC current to the feeder, an AC magnetic force line is formed in the feeder, but when the AC power supply flows through the magnetic core 32 of the pickup device, the magnetic force line M1 is wound on the magnetic core 32. Power is dissipated in the secondary windings.
  • the configuration of the feeder and pick-up device can be changed in various ways.
  • the secondary winding is wound around the central arm of the current collector core 32 of the E-type, and the feeder passes between the center arm and both arms of the current collector core 32.
  • the secondary winding is wound around the center of the current collector core of the type, and the feeder passes through the grooves of both current collector cores.
  • the secondary winding is wound around one side of the flat-type current collector core, and the feeder is the secondary winding. There is also a way to pass through this wound.
  • FIG. 5 shows an example in which two independent wireless power transmitters are installed.
  • DC direct current
  • LC resonance it is efficient to use LC resonance in order to flow high frequency current through a long feed line. Since the long feed line has its own inductance L as shown in FIG. 5, separate resonant capacitors 11a and 21a are added to the feed line in series to form a series resonant circuit, and as shown in FIG. 13, a separate resonant capacitor is provided. It may be connected in parallel to form a parallel resonant circuit. If the feed line is short and its inductance is insufficient, it is also possible to add an inductor in series, and it is common to add an appropriate resonance capacitor so that the resonance frequency of the LC resonant circuit becomes a predetermined frequency. If the feeder consists of a series resonant circuit, the AC power supply shall be a voltage source, and if the feeder consists of a parallel resonant circuit, the AC power supply shall be a current source.
  • the resonant capacitor 31a connected in parallel between the current collector coil 31 and the rectifier 31b constitutes a parallel resonance circuit which resonates at the frequencies of the feed lines 11 and 21 and the current collector coil 31, respectively.
  • the collector coil and the resonant capacitor may be connected in series to form a series resonant circuit.
  • FIG. 6 is a view illustrating a switch unit including switches inserted between each AC power supply unit and each feeder line and switches connected between two feeder lines and a state of each AC power supply unit for implementing a failover function according to the present invention.
  • the wireless power transmitter having the failover function includes a first feed track and a second feed track when two independent wireless power transmitters are installed.
  • a first AC power supply unit 100 disposed at each of the first and second AC power supply units 100 to apply AC power having a predetermined frequency to the first feed line 11 disposed along the first feed track;
  • a second alternating current power supply unit 200 for applying an alternating current power equal to a frequency of an alternating current power applied to the first feed line 11 to a second feed line 21 disposed along the second feed track; Any one of the first AC power supply unit 100 and the second AC power supply unit 200 is independent of the first feed line 11 and the first feed line 11 so that AC power is simultaneously supplied to the first feed line 11 and the second feed line 21.
  • a switch unit 300 for switching the two feed lines 21 to be connected in series;
  • a failover controller 400 for monitoring the operation of the first AC power supply unit 100 and the second AC power supply unit in real time and controlling the switching connection of the switch unit 300.
  • the failover controller 400 monitors the first AC power supply unit 100 and the second AC power supply unit 200 in real time, and the first AC power supply unit 100 and the second AC power supply unit ( If one of the 200 is not operated, the switch unit 300 operates under the control of the failover controller to switch the first feed line 11 and the second feed line 21 in a state in which two independent AC power sources are connected.
  • the switch unit 300 operates under the control of the failover controller to switch the first feed line 11 and the second feed line 21 in a state in which two independent AC power sources are connected.
  • AC power is simultaneously applied to two independent first feed lines 11 and second feed lines 21 by the other driving. .
  • the switch unit 300 is connected to the (-) terminal of the first AC power supply unit 100 to extend (+) of the first feed line 11 and the second AC power supply unit 200.
  • a first switch 310 for switching on and off a connection line connecting the second feed line 21 connected to the terminal and extending;
  • the first feed line 11 connected to the (-) terminal of the first AC power supply unit 100 and the second feed line 21 extended to the (-) terminal of the second AC power supply unit 200 extend.
  • a second switch 320 for switching on and off the connecting line;
  • the first feed line 11 connected to the (+) terminal of the first AC power supply unit 100 and the second feed line 21 extended to the (+) terminal of the second AC power supply unit 200 extend.
  • a third switch 330 for switching on and off the connecting line to be connected; Fourth switch 340 for switching on and off the connection of each node portion (N1, N2) where the connecting line where the first switch 310 is located and the connecting line where the second switch 320 meets the first feed line 11 meet. ); A fifth switch for switching on / off a connection of each node portion N3 and N4 connected to the second feed line 21 by a connection line where the first switch 310 is located and a connection line where the third switch 330 is located; 350); is configured to include.
  • connection line at which the second switch 320 is located switches on and off the connection of the negative terminal of the node N5 and the second AC power supply unit 200 that meet the second feed line 21.
  • the failover controller 400 switches on the fourth switch 340, the fifth switch 350, the sixth switch 360, and the seventh switch 370, and the first switch 310.
  • the second switch 320 and the third switch 330 are controlled to be switched off. That is, the case of the first selection indicates a case in which each of the first AC power supply unit 100 and the second AC power supply unit 200 operates normally.
  • the seventh switch 370 and the sixth switch 360 provided in the first feed line 11 and the sixth switch 360 provided in the second feed line 21 are excluded as necessary.
  • the first feed line 11 and the second feed line 21 at a position corresponding to may be configured in a shorted state.
  • FIG. 7 is a circuit diagram illustrating a state of the switch unit 300 when the first AC power supply unit 100 of the present invention fails.
  • the failover controller 400 may include the first switch 310 and the first switch. To switch on the third switch 330, the sixth switch 360, and to switch off the second switch 320, the fourth switch 340, the fifth switch 350, and the seventh switch 370. do.
  • first feed line 11 and the second feed line 21 are connected in series, and the AC power is simultaneously applied to both the first feed line 11 and the second feed line 21 by the operation of only the second AC power supply unit 200.
  • FIG. 8 is a circuit diagram illustrating a switch unit state when the second AC power supply unit 200 of the present invention is broken.
  • the failover controller 400 includes a first switch 310 and a second switch (3). 320, the seventh switch 370 is switched on, and the third switch 330, the fourth switch 340, the fifth switch 350, and the sixth switch 360 are controlled to be switched off.
  • first feed line 11 and the second feed line 21 are connected in series, and AC power is simultaneously applied to both the first feed line and the second feed line 11 and 21 by the operation of only the first AC power supply 200. .
  • FIG. 9 illustrates a failover wireless power transmission apparatus in which a failover controller is separated into two controllers without using a failover controller as a single controller, as another embodiment of the present invention.
  • the first failover controller 500 monitors the state of the second AC power supply unit 200 in real time. If there is an error in the operation of the second AC power supply unit 200, the second failover controller 600 does not operate. The first failover controller 500 has full power and controls the switch unit 300 in the same manner as the existing failover controller 400. The second failover controller 600 monitors the first AC power supply unit 100 in real time, and when there is an error in the operation of the first AC power supply unit 100, the first failover controller 500 does not operate and 2 The failover controller 600 has full power and controls the switch unit 300 in the same manner as the existing failover controller 400 controls.
  • FIG. 10 illustrates a case where the switch unit controlled by the first failover controller 500 and the second failover controller 600 is also separated according to the controller according to another embodiment of the present invention.
  • the first failover controller 500 does not control the entire switch unit 300 without the first failover controller 500 or the second failover controller 600 controlling the second switch 320 and the fourth switch 340.
  • the seventh switch 370 is dedicated
  • the second failover controller 600 is dedicated to the third switch 330, the fifth switch 350, the sixth switch 360
  • the first switch is the first The first failover controller 500 and the second failover controller 600 control jointly.
  • the first failover controller 500 and the second failover controller 600 control the entire switch unit 300 so that the control line is controlled by the first failover controller 500 and the second failover.
  • the control lines are complicated to be connected to all the switches of the switch unit 300 in both the controllers 600, but in the method of FIG. 10, the switches in each AC power supply are controlled by the corresponding failover controller, and only the first switch is switched on both sides. Simultaneous control by the failover controller has the advantage of very simple control lines. Detailed operation description is as follows.
  • the first failover controller When each AC power supply unit operates normally, the first failover controller turns on the fourth switch 340 and the seventh switch 370, and turns off the second switch 320. At the same time, the second failover controller turns on the fifth switch 350, the sixth switch 360, and turns off the third switch 330. In the first switch, both failover controllers send off signals.
  • the first switch 310 is configured to react when either of the failover controllers receives a signal.
  • the first failover controller 500 When the first AC power supply unit 100 has failed, the first failover controller 500 also stops operating, so the second switch 320 and the fourth switch 340 managed by the first failover controller 500. ), The seventh switch 370 is automatically turned off. The signal to the first switch 310 also sends an off signal.
  • the second failover controller 600 monitoring the first AC power supply 100 recognizes that the first AC power supply 100 has failed, the fifth switch 350 is turned off and the third switch 330 is turned off. ), The first switch 310, the sixth switch 360 is turned on so that the first feed line and the second feed line are connected in series, and the second AC power supply unit 200 supplies power to the two feed lines at the same time.
  • the second failover controller 600 When the second AC power supply unit 200 has failed, the second failover controller 600 also stops operation, so that the third switch 330 and the fifth switch 350 which are managed by the second failover controller 600. ), The sixth switch 360 is automatically turned off. The signal to the first switch 310 also sends an off signal.
  • the fourth switch 340 When the first failover controller 500 monitoring the second AC power supply 200 recognizes that the second AC power supply 200 has failed, the fourth switch 340 is turned off and the second switch 320 is turned off. ), The first switch 310 and the seventh switch 370 are turned on so that the first feed line and the second feed line are connected in series, and the first AC power supply unit supplies power to the two feed lines at the same time.
  • the failover controller controls the switch unit 300 to connect the two feeders in series, and the normal AC power supply unit is connected to the two feeders.
  • the failover operation that supplies power at the same time, if the power is alive during the switching operation of the switch unit 300, if the spark occurs in the switch or if the instantaneous current values are different from each other when the phases of the AC current flowing in the feed line do not coincide with each other, the collision Because of this, it is stable to turn off the live AC power supply temporarily during the switching operation, and then turn on the normal AC power supply again after all the switching is completed.
  • a predetermined resonance capacitor 40 may be added in series with the first switch 310 as shown in FIG. 11.
  • FIG. 12 is in contrast to a feed line composed of a series resonant circuit of FIG. 6, wherein two feed lines are viewed from a power supply side, and the wireless power transmission constituting a parallel resonant circuit in which resonant capacitors 11a and 21a and a feed line inductor L are connected in parallel. Show the device. In this case, another failover function can be implemented in the present invention.
  • FIG. 13 shows a configuration in which a failover function is applied to two wireless power transmitters of a parallel resonance method.
  • the feeder line has been changed from a series resonant circuit to a parallel resonant circuit, and the AC power supply has been changed from a voltage source to a current source.
  • the rest of the switch configuration and operation is exactly the same as for a series resonant circuit.
  • FIG. 14 shows a configuration in which the failover controller is divided into a first failover controller 500 and a second failover controller 600, and its configuration or operation is completely similar to that of the serial resonant circuit (FIG. 9). same.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Signal Processing (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Power Sources (AREA)

Abstract

La présente invention concerne un dispositif de transfert de puissance du type sans contact qui transfère de la puissance sans contact à des supports se déplaçant respectivement le long de deux rails d'alimentation indépendants, et concerne plus particulièrement, un dispositif de transfert de puissance sans fil capable de reprise pouvant faire fonctionner en continu des supports se déplaçant le long de rails d'alimentation même lorsqu'une des deux unités d'alimentation en puissance CA destinées à appliquer de la puissance CA aux rails d'alimentation est défectueuse. Selon la présente invention, lorsque deux dispositifs de transfert de puissance du type sans contact sont installés, si une des deux unité d'alimentation en puissance CA indépendantes prévues pour appliquer de la puissance CA à des rails d'alimentation respectifs, cesse de fonctionner du fait d'une panne, l'autre unité d'alimentation en puissance assure une fonction de secours pour simultanément exciter les deux rails d'alimentation. Par conséquent, dans un environnement tel qu'une chaîne de production de semi-conducteurs ou d'afficheurs à cristaux liquides, dans lequel les processus de fabrication ne doivent pas être interrompus même pour une courte période, la perte occasionnée par la défaillance de l'unité d'alimentation en puissance CA peut être évitée.
PCT/KR2011/003907 2010-08-17 2011-05-27 Dispositif de transfert de puissance sans fil capable de reprise WO2012023690A1 (fr)

Applications Claiming Priority (2)

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KR10-2010-0079501 2010-08-17
KR1020100079501A KR101017407B1 (ko) 2010-08-17 2010-08-17 패일오버 기능이 구비된 무선 전력전송장치

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KR102005945B1 (ko) * 2019-02-01 2019-10-01 (주)그린파워 무정전 멀티 페일오버 기능이 구비된 무선 전력전송장치
KR102199605B1 (ko) * 2019-05-28 2021-01-07 (주)화인파워엑스 전력공급의 이중화를 위한 다중 인버터 타입의 무선전력전송 시스템
KR102503287B1 (ko) 2020-10-29 2023-02-23 세메스 주식회사 이송 장치 및 그 제어 방법
KR102445196B1 (ko) * 2021-11-20 2022-09-20 (주)화인파워엑스 인버터 공유 기반의 무선 전력전송 장치
JP2023080663A (ja) * 2021-11-30 2023-06-09 村田機械株式会社 非接触給電装置および非接触給電方法

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