WO2017126110A1 - Dispositif de transmission de puissance, alimentation en puissance haute fréquence et circuit de redressement haute fréquence - Google Patents

Dispositif de transmission de puissance, alimentation en puissance haute fréquence et circuit de redressement haute fréquence Download PDF

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Publication number
WO2017126110A1
WO2017126110A1 PCT/JP2016/051885 JP2016051885W WO2017126110A1 WO 2017126110 A1 WO2017126110 A1 WO 2017126110A1 JP 2016051885 W JP2016051885 W JP 2016051885W WO 2017126110 A1 WO2017126110 A1 WO 2017126110A1
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Prior art keywords
power
resonant
frequency
full
commercial
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PCT/JP2016/051885
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English (en)
Japanese (ja)
Inventor
阿久澤　好幸
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三菱電機エンジニアリング株式会社
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Priority to JP2016525618A priority Critical patent/JP6058222B1/ja
Priority to PCT/JP2016/051885 priority patent/WO2017126110A1/fr
Priority to TW105121887A priority patent/TW201728047A/zh
Publication of WO2017126110A1 publication Critical patent/WO2017126110A1/fr

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    • 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

Definitions

  • the present invention relates to a power transmission device, a high-frequency power source, and a high-frequency rectifier circuit that receive commercial AC and transmit power and output AC having the same frequency as the commercial AC.
  • Patent Document 1 a power transmission device that performs wireless power transmission by inputting commercial alternating current is known (see, for example, Patent Document 1).
  • a converter having a bridge-connected rectifier diode converts input commercial alternating current into direct current.
  • the inverter converts the direct current into high frequency alternating current (10 kHz).
  • This converted high-frequency alternating current is contactlessly transmitted by a dielectric line (transmission / reception antenna).
  • bridging converts the said transmitted high frequency alternating current into direct current
  • the inverter converts the said direct current into a high frequency alternating current, and outputs it to the motor used as a load.
  • FIG. 8 is a diagram illustrating a configuration in the case where the conventional power transmission device is changed to a more general functional block, and the load is a device that operates with commercial AC.
  • AC / DC converter 101 converts the input commercial alternating current (50 Hz in FIG. 8) into direct current.
  • the DC / AC inverter 102 converts the direct current into high-frequency alternating current (6.78 MHz in FIG. 8). This converted high-frequency alternating current is contactlessly transmitted by the resonant transmission / reception antennas 103 and 104.
  • the AC / DC rectifier circuit 105 converts the transmitted high-frequency alternating current into direct current.
  • the DC / AC inverter 106 converts the direct current into alternating current (50 Hz in FIG. 8) having the same frequency as the commercial alternating current, and outputs the alternating current to the load.
  • the present invention has been made in order to solve the above-described problems, and without using an AC / DC converter and a DC / AC inverter, commercial AC is input to transmit power, and the same frequency as that of the commercial AC. It is an object of the present invention to provide a power transmission device, a high-frequency power supply, and a high-frequency rectifier circuit that can output the alternating current.
  • the power transmission device includes a commercial AC input, an input circuit that outputs half-wave rectified power of the commercial AC, and power having a phase difference of 180 degrees with respect to the power, and an output from the input circuit
  • a high-frequency power source having an inverter that converts the corresponding power output from the input circuit to power having a frequency higher than the frequency of the commercial AC, and power converted by the corresponding inverter.
  • a resonant transmission antenna that transmits power and a resonant reception antenna that is provided for each resonant transmission antenna and that receives power transmitted by the corresponding resonant transmission antenna, and a resonant resonance antenna that is provided for each resonant reception antenna.
  • the full-wave rectifier circuit that full-wave rectifies the power received by the receiving antenna and the full-wave rectified power by each full-wave rectifier circuit. It is obtained by a high-frequency rectifier circuit having an output circuit for the synthesized on obtained by inverting the polarity of the power.
  • FIGS. 6A and 6B are diagrams showing an application example of the power transmission device according to Embodiment 1 of the present invention, and a side view when a transmission device is provided in a fixed portion and a reception device is provided in a moving body, It is a top view of a fixing part. It is a figure which shows the structural example at the time of wire-connecting the resonance type transmission antenna and resonance type reception antenna in Embodiment 1 of this invention. It is a figure which shows the structural example of the conventional power transmission apparatus.
  • FIG. 1 is a diagram illustrating a configuration example of a power transmission device according to Embodiment 1 of the present invention.
  • the power transmission device receives commercial alternating current and performs power transmission to output alternating current having the same frequency as the commercial alternating current.
  • the commercial AC includes low-frequency AC such as AC at a standard frequency (50 Hz or 60 Hz) used at home and abroad and AC at a frequency used for industrial use.
  • a standard frequency 50 Hz or 60 Hz
  • the power transmission apparatus performs wireless power transmission will be described as an example.
  • the power transmission apparatus includes a transmission-side AC / AC converter (high-frequency power source) 1, resonant transmission antennas 2a and 2b, resonant reception antennas 3a and 3b, and a reception-side AC / AC converter (high-frequency rectification). Circuit) 4.
  • the transmission-side AC / AC converter 1 and the resonance-type transmission antennas 2 a and 2 b constitute a transmission device 5
  • the resonance-type reception antennas 3 a and 3 b and the reception-side AC / AC converter 4 constitute a reception device 6.
  • the transmission-side AC / AC converter 1 receives the commercial alternating current (50 Hz in FIG. 1), and alternately outputs the commercial alternating current with the voltage amplitude changing at the frequency of the commercial alternating current and a phase difference of 180 degrees.
  • the power is converted into two systems of power having a frequency (6.78 MHz in FIG. 1) higher than the frequency of the commercial AC.
  • the transmission side AC / AC converter 1 includes an input circuit 11, inverters 12a and 12b, and resonance matching circuits 13a and 13b.
  • the input circuit 11 receives the commercial alternating current and outputs electric power obtained by half-wave rectifying the commercial alternating current and electric power having a phase difference of 180 degrees with respect to the electric power. Of the two systems of power obtained by the input circuit 11, one power is output to the inverter 12a and the other power is output to the inverter 12b.
  • the inverter 12a converts one power output from the input circuit 11 to the high frequency power by switching at the high frequency.
  • the electric power converted by the inverter 12a is output to the resonant transmission antenna 2a via the resonant matching circuit 13a.
  • the inverter 12b converts the other power output from the input circuit 11 to the high frequency power by switching at the high frequency.
  • the electric power converted by the inverter 12b is output to the resonant transmission antenna 2b through the resonant matching circuit 13b.
  • the inverters 12a and 12b have the same switching frequency.
  • the resonance matching circuit 13a matches the output impedance of the inverter 12a and the input impedance of the resonant transmission antenna 2a (matches the resonance conditions with the resonant transmission antenna 2a).
  • the resonance matching circuit 13a includes a fixed matching type in which the constant of each element constituting the resonance matching circuit 13a is fixed, a variable matching type in which the constant of each element is variable, and the constant of each element is automatically changed to perform matching. Any of the automatic alignment types that take
  • the resonance matching circuit 13b matches the output impedance of the inverter 12b and the input impedance of the resonance transmitting antenna 2b (matches resonance conditions with the resonance transmitting antenna 2b).
  • the resonance matching circuit 13b includes a fixed matching type in which the constants of each element constituting the resonance matching circuit 13b are fixed, a variable matching type in which the constants of each element are variable, and a constant of each element that is automatically changed to perform matching. Any of the automatic alignment types that take The inverters 12a and 12b and the resonance matching circuits 13a and 13b share a circuit return line 14 (see FIG. 2).
  • the resonant transmission antenna 2a receives the power converted by the inverter 12a, performs a resonance operation, and generates a non-radiation type electromagnetic field in the vicinity so as to transmit power to the resonant reception antenna 3a.
  • the resonant transmission antenna 2b receives the power converted by the inverter 12b, performs a resonance operation, and generates a non-radiation type electromagnetic field in the vicinity so as to transmit power to the resonant reception antenna 3b.
  • Type power transmitting antenna is
  • the resonant receiving antenna 3a is a resonant power receiving antenna that receives power by performing a resonant coupling operation with a non-radiating electromagnetic field from the resonant transmitting antenna 2a.
  • the power received by the resonance type reception antenna 3a is output to the full wave rectification circuit 42a via a resonance matching circuit 41a (described later) of the reception side AC / AC converter 4.
  • the resonant receiving antenna 3b is a resonant power receiving antenna that receives power by performing a resonant coupling operation with a non-radiating electromagnetic field from the resonant transmitting antenna 2b.
  • the electric power received by the resonance type receiving antenna 3b is output to the full-wave rectifier circuit 42b via a resonance matching circuit 41b (to be described later) of the receiving side AC / AC converter 4.
  • the wireless power transmission method between the resonant transmission antennas 2a and 2b and the resonant reception antennas 3a and 3b is not particularly limited, and may be a magnetic field resonance method, an electric field resonance method, or an electromagnetic induction method. Either may be sufficient.
  • the receiving-side AC / AC converter 4 converts the power received by the resonant receiving antennas 3a and 3b into a single alternating current having the same frequency as the commercial alternating current (50 Hz in FIG. 1).
  • the reception-side AC / AC converter 4 includes resonance matching circuits 41 a and 41 b, full-wave rectification circuits 42 a and 42 b, and an output circuit 43.
  • the resonance matching circuit 41a matches the output impedance of the resonance receiving antenna 3a and the input impedance of the full-wave rectification circuit 42a (matches the resonance condition with the resonance receiving antenna 3a).
  • the resonance matching circuit 41a includes a fixed matching type in which the constants of each element constituting the resonance matching circuit 41a are fixed, a variable matching type in which the constants of each element are variable, and a constant of each element that is automatically changed to perform matching. Any of the automatic alignment types that take
  • the resonance matching circuit 41b matches the output impedance of the resonance receiving antenna 3b and the input impedance of the full-wave rectification circuit 42b (matches the resonance condition with the resonance receiving antenna 3b).
  • the resonance matching circuit 41b includes a fixed matching type in which the constant of each element constituting the resonance matching circuit 41b is fixed, a variable matching type in which the constant of each element is variable, and a constant of each element that is automatically changed to match. Any of the automatic alignment types that take
  • the full-wave rectification circuit 42a performs full-wave rectification on the power received by the resonant receiving antenna 3a.
  • the full-wave rectified power by the full-wave rectifier circuit 42 a is output to the output circuit 43.
  • the full-wave rectification circuit 42b performs full-wave rectification on the power received by the resonant receiving antenna 3b.
  • the electric power that has been full-wave rectified by the full-wave rectifier circuit 42 b is output to the output circuit 43.
  • the output circuit 43 combines the power that has been full-wave rectified by the full-wave rectification circuits 42a and 42b with the polarity of one of the powers reversed. Thereby, the alternating current of the same frequency as the said commercial alternating current can be obtained.
  • the electric power obtained by the output circuit 43 is output to a load (not shown).
  • FIG. 2 is a diagram showing a circuit configuration example of the transmission device 5 according to Embodiment 1 of the present invention.
  • FIG. 2 shows a case where a commercial AC source 7 that outputs commercial AC is connected to the input terminal of the transmission device 5.
  • FIG. 2 shows a case where class E inverters are used as the inverters 12a and 12b.
  • the input circuit 11 of the transmission-side AC / AC converter 1 includes diodes D11, D12, D21, and D22, and capacitors C11 and C21.
  • the diode D11 has a cathode connected to one end (plus terminal) of the commercial AC source 7, and an anode connected to the anode of the diode D21.
  • the diode D12 has an anode connected to one end of the commercial AC source 7.
  • the capacitor C11 has one end connected to the cathode of the diode D12 and the other end connected to the anode of the diode D11.
  • the diode D21 has a cathode connected to the other end (minus terminal) of the commercial AC source 7, and an anode connected to the anode of the diode D11.
  • the anode of the diode D22 is connected to the other end of the commercial AC source 7.
  • the capacitor C21 has one end connected to the cathode of the diode D22 and the other end connected to the anode of the diode 21.
  • the inverter 12a of the transmission side AC / AC converter 1 includes an inductor L11, a resonance circuit element (capacitors C12 and C13 and an inductor L12), and a switching element Q11.
  • the inductor L11 functions to temporarily hold the power input from the input circuit 11 for each operation of the switching element Q11.
  • One end of the inductor L11 is connected to the cathode of the diode D12 and one end of the capacitor C11.
  • the resonant circuit elements are for causing the switching operation of the switching element Q11 to be a resonant switching operation. That is, with this resonance circuit element, the switching condition of the switching element Q11 is set so that ZVS (zero voltage switching) is established so that the switching loss due to the Ids current and the Vds voltage product is minimized. Yes.
  • the capacitor C12 has one end connected to the other end of the inductor L11 and the other end connected to the anode of the diode D11.
  • the inductor L12 has one end connected to the other end of the inductor L11.
  • the capacitor C13 has one end connected to the other end of the inductor L12.
  • the switching element Q11 performs a switching operation at the above high frequency.
  • the switching element Q11 has a drain terminal connected to the other end of the inductor L11 and a source terminal connected to the anode of the diode D11.
  • the inverter 12b of the transmission side AC / AC converter 1 includes an inductor L21, resonant circuit elements (capacitors C22 and C23 and an inductor L22), and a switching element Q21.
  • the inductor L21 serves to temporarily hold the power input from the input circuit 11 for each operation of the switching element Q21.
  • One end of the inductor L21 is connected to the cathode of the diode D22 and one end of the capacitor C21.
  • the resonant circuit elements are for switching the switching operation of the switching element Q21 to a resonant switching operation. That is, with this resonant circuit element, the switching conditions of the switching element Q21 are set so that ZVS (zero voltage switching) is established so that the switching loss due to the Ids current and the Vds voltage product is minimized. Yes.
  • the capacitor C22 has one end connected to the other end of the inductor L21 and the other end connected to the anode of the diode D21.
  • the inductor L22 has one end connected to the other end of the inductor L21.
  • the capacitor C23 has one end connected to the other end of the inductor L22.
  • the switching element Q21 performs a switching operation at the high frequency.
  • the switching element Q21 has a drain terminal connected to the other end of the inductor L21 and a source terminal connected to the anode of the diode D21.
  • the resonance matching circuit 13a of the transmission-side AC / AC converter 1 includes capacitors C14 and C15 and an inductor L13.
  • One end of the capacitor C14 is connected to the other end of the capacitor C13, and the other end is connected to the anode of the diode D11. Further, one end of the inductor L13 is connected to the other end of the capacitor C13.
  • Capacitor C15 has one end connected to the other end of inductor L13 and the other end connected to the anode of diode D11.
  • the resonance matching circuit 13b of the transmission side AC / AC converter 1 is composed of capacitors C24 and C25 and an inductor L23.
  • the capacitor C24 has one end connected to the other end of the capacitor C23 and the other end connected to the anode of the diode D21.
  • the inductor L23 has one end connected to the other end of the capacitor C23.
  • the capacitor C25 has one end connected to the other end of the inductor L23 and the other end connected to the anode of the diode D21.
  • the resonant transmission antenna 2a includes capacitors C16 and C17 and an inductor L14.
  • the capacitors C16 and C17 and the inductor L14 set the resonance conditions of the resonant transmission antenna 2a.
  • the inductor L14 is also used as an antenna in addition to the function of setting the resonance condition of the resonant transmission antenna 2a.
  • the capacitor C16 has one end connected to the other end of the inductor L13.
  • the capacitor C17 has one end connected to the anode of the diode D11.
  • the inductor L14 has one end connected to the other end of the capacitor C16 and the other end connected to the other end of the capacitor C17.
  • the resonant transmission antenna 2b includes capacitors C26 and C27 and an inductor L24.
  • the capacitors C26 and C27 and the inductor L24 set the resonance conditions of the resonant transmission antenna 2b.
  • the inductor L24 is also used as an antenna in addition to the function of setting the resonance condition of the resonant transmission antenna 2b.
  • the capacitor C26 has one end connected to the other end of the inductor L23.
  • the capacitor C27 has one end connected to the anode of the diode D21.
  • the inductor L24 has one end connected to the other end of the capacitor C26 and the other end connected to the other end of the capacitor C27.
  • FIG. 3 is a diagram showing a circuit configuration example of the receiving device 6 according to the first embodiment of the present invention.
  • FIG. 3 shows a case where bridge rectifier circuits are used as the full-wave rectifier circuits 42a and 42b.
  • the resonant receiving antenna 3a is configured by an inductor L31 and capacitors C31 and C32.
  • the inductor L31 and the capacitors C31 and C32 set the resonance condition of the resonance type receiving antenna 3a.
  • the inductor L31 is also used as an antenna in addition to the function of setting the resonance condition of the resonance type receiving antenna 3a.
  • the inductor L31 has a capacitor C31 connected to one end and a capacitor C32 connected to the other end.
  • the resonant receiving antenna 3b includes an inductor L41 and capacitors C41 and C42.
  • the inductor L41 and the capacitors C41 and C42 set the resonance condition of the resonance type receiving antenna 3b.
  • the inductor L41 is also used as an antenna in addition to the function of setting the resonance condition of the resonant receiving antenna 3b.
  • the inductor L41 has a capacitor C41 connected to one end and a capacitor C42 connected to the other end.
  • the resonance matching circuit 41a of the receiving side AC / AC converter 4 includes an inductor L32 and a capacitor C33.
  • One end of the inductor L32 is connected to the other end of the capacitor C31.
  • the capacitor C33 has one end connected to the other end of the inductor L32 and the other end connected to the other end of the capacitor C32.
  • the resonance matching circuit 41b of the receiving side AC / AC converter 4 includes an inductor L42 and a capacitor C43. One end of the inductor L42 is connected to the other end of the capacitor C41. Capacitor C43 has one end connected to the other end of inductor L42 and the other end connected to the other end of capacitor C42.
  • the full-wave rectifier circuit 42a of the reception-side AC / AC converter 4 includes rectifier diodes D31 to D34 and a capacitor C34.
  • the rectifier diodes D31 to D34 are bridge-connected and perform full-wave rectification on the power input from the resonant receiving antenna 3a.
  • the cathode of the rectifier diode D31 and the anode of the rectifier diode D33 are connected to the other end of the inductor L32, and the cathode of the rectifier diode D32 and the anode of the rectifier diode D34 are connected to the other end of the capacitor C32.
  • the capacitor C34 smoothes the power that has been full-wave rectified by the rectifier diodes D31 to D34 while leaving the AC component (the waveform shown in the upper part of FIG. 5B). That is, the capacity of the capacitor C34 is set to a small value such that an AC component (50 Hz, which is the same as that of commercial AC) remains in the output waveform.
  • the capacitor C34 has one end connected to the cathode of the rectifier diode D33 and the cathode of the rectifier diode D34, and the other end connected to the anode of the rectifier diode D31 and the anode of the rectifier diode D32.
  • the full-wave rectifier circuit 42b of the reception-side AC / AC converter 4 includes rectifier diodes D41 to D44 and a capacitor C44.
  • the rectifier diodes D41 to D44 are bridge-connected and perform full-wave rectification on the electric power input from the resonant receiving antenna 3b.
  • the cathode of the rectifier diode D41 and the anode of the rectifier diode D43 are connected to the other end of the inductor L42, and the cathode of the rectifier diode D42 and the anode of the rectifier diode D44 are connected to the other end of the capacitor C42.
  • Capacitor C44 smoothes the power that has been full-wave rectified by rectifier diodes D41 to D44 while leaving the AC component (the waveform shown in the lower part of FIG. 5B). That is, the capacity of the capacitor C44 is set to a small value such that an AC component (50 Hz which is the same as commercial AC in the example in the figure) remains in the output waveform.
  • One end of the capacitor C44 is connected to the cathode of the rectifier diode D43 and the cathode of the rectifier diode D44, and the other end is connected to the anode of the rectifier diode D41 and the anode of the rectifier diode D42.
  • the output circuit 43 of the receiving side AC / AC converter 4 includes switching elements Q31 and Q41.
  • the switching element Q31 has a drain terminal connected to the cathode of the rectifier diode D33 and the cathode of the rectifier diode D34, and a source terminal connected to the anode of the rectifier diode D31 and the anode of the rectifier diode D32.
  • the switching element Q41 has a drain terminal connected to the cathode of the rectifier diode D43 and the cathode of the rectifier diode D44, and a source terminal connected to the anode of the rectifier diode D41 and the anode of the rectifier diode D42.
  • the source terminal of the switching element Q31 is also connected to the source terminal of the switching element Q41.
  • the HOT terminal is connected to the drain terminal of the switching element Q31, and the RTN terminal is connected to the drain terminal of the switching element Q41.
  • the frequency of the commercial AC input to the power transmission device is 50 Hz and the high frequency used in the power transmission device is 6.78 MHz.
  • the transmission device 5 when the commercial alternating current Vin (AC) of 50 Hz is input from the commercial alternating current source 7 to the input circuit 11 of the transmission side AC / AC converter 1 (FIG. 4A), the commercial alternating current is converted into two systems. It is converted into electric power (electric power obtained by half-wave rectifying the commercial alternating current and electric power having a phase difference of 180 degrees with respect to the electric power) and output.
  • AC commercial alternating current Vin
  • electric power electric power obtained by half-wave rectifying the commercial alternating current and electric power having a phase difference of 180 degrees with respect to the electric power
  • the inverter 12a converts one power from the input circuit 11 into 6.78 MHz power (upper stage in FIG. 4B).
  • the peak of the drain-source voltage Vds (Q11) switched at 6.78 MHz by the switching element Q11 changes to a half wave of a 50 Hz sine wave.
  • the inverter 12b converts the other power from the input circuit 11 into a 6.78 MHz power (lower stage in FIG. 4B).
  • the peak of the drain-source voltage Vds (Q21) switched at 6.78 MHz by the switching element Q21 changes to a half wave of a 50 Hz sine wave.
  • the waveform indicated by the solid line indicates the waveform of the power (6.78 MHz) converted by the inverters 12a and 12b, and the waveform indicated by the broken line indicates the waveform of the power.
  • the peak locus 50 Hz is shown.
  • the resonant transmission antennas 2a and 2b transmit the 6.78 MHz power (transmission wave) of 6.78 MHz that is alternately output with a voltage amplitude of 50 Hz and a phase difference of 180 degrees (see FIG. 4C).
  • a waveform indicated by a solid line indicates a waveform of power (6.78 MHz) transmitted by the resonant transmission antennas 2a and 2b, and a waveform indicated by a broken line is The locus of the power peak (50 Hz) is shown.
  • the resonant receiving antennas 3a and 3b are alternately output with a voltage amplitude of 50 Hz and a phase difference of 180 degrees transmitted by the resonant transmitting antennas 2a and 2b. Receives two powers (transmission waves) of .78 MHz (FIG. 5A).
  • the waveform shown in FIG. 5A is the same as the waveform shown in FIG. 4C.
  • the full-wave rectification circuit 42a of the reception-side AC / AC converter 4 performs full-wave rectification on the power received by the resonant receiving antenna 3a (upper stage in FIG. 5B).
  • the full-wave rectification circuit 42b performs full-wave rectification on the power received by the resonance type receiving antenna 3b (lower stage in FIG. 5B).
  • the voltage V (C34) of the capacitor C34 and the voltage V (C44) of the capacitor C44 are such that the power rectified into a half wave of a 50 Hz sine wave is alternately output with a phase difference of 180 degrees. Become.
  • the output circuit 43 synthesizes the power that has been full-wave rectified by the full-wave rectification circuits 42a and 42b after inverting the polarity of one of the powers.
  • the drain-source of the switching element Q31 is turned on, and when the voltage V (C34) of the capacitor C34 is High, the drain-source of the switching element Q41 is switched. Turn it on. Thereby, the output of the receiving device 6 becomes a sine wave having the same frequency as 50 Hz, which is the frequency of the commercial power input to the power transmission device (FIG. 5C).
  • FIG. 6 shows a case where the fixing unit 51 is a road surface, and only the resonant transmission antennas 2 a and 2 b of the transmission device 5 and the resonant reception antennas 3 a and 3 b of the reception device 6 are illustrated.
  • the resonant transmission antennas 2a and 2b are installed in a fixed portion 51 such as a road surface or a parking lot, and the resonant reception antennas 3a and 3b are stopped or It can be installed on a moving body 52 such as a vehicle facing the fixed portion 51 during movement.
  • a fixed portion 51 such as a road surface or a parking lot
  • the resonant reception antennas 3a and 3b are stopped or It can be installed on a moving body 52 such as a vehicle facing the fixed portion 51 during movement.
  • the resonant transmission antenna 2a is configured from a single coil
  • the resonant transmission antenna 2b is configured from a single coil.
  • each of the resonant transmission antennas 2a and 2b may be configured by two or more coils, for example, may be configured by a power feeding coil and a resonance coil, respectively.
  • the resonant receiving antenna 3a is configured from a single coil
  • the resonant receiving antenna 3b is configured from a single coil
  • each of the resonance type receiving antennas 3a and 3b may be composed of two or more coils, for example, may be composed of a power feeding coil and a resonance coil, respectively.
  • the power transmission method between the resonant transmission antennas 2a and 2b and the resonant reception antennas 3a and 3b is a wireless transmission method.
  • the present invention is not limited to this.
  • the resonance type transmission antenna 2a and the resonance type reception antenna 3a are equivalently connected to each other by a conducting wire 8a so as to be connected at one point.
  • the resonance type reception antenna 3b may be contact type resonance coupling transmission in which the conductors 8b are connected so as to be equivalently connected at one point.
  • FIG. 7 only the resonant transmission antennas 2 a and 2 b in the transmission device 5 and the resonant reception antennas 3 a and 3 b in the reception device 6 are illustrated.
  • an E-class inverter is used as the inverters 12a and 12b.
  • the present invention is not limited to this, and any inverter that converts input power to the high frequency power by switching at the high frequency may be used.
  • a bridge type inverter a class D inverter, or a class DE inverter may be used.
  • a diode-type bridge rectifier circuit is used as the full-wave rectifier circuits 42a and 42b.
  • the present invention is not limited to this, and any circuit may be used as long as the input power is full-wave rectified.
  • the full-wave rectifier circuits 42a and 42b may be configured by using field effect transistors (FETs) instead of the rectifier diodes D31 to D34 and D41 to D44.
  • FETs field effect transistors
  • the resonance matching circuit 13a is provided outside the inverter 12a, and the resonance matching circuit 13b is provided outside the inverter 12b.
  • the present invention is not limited to this, and the resonance matching circuit 13a may be built in the inverter 12a, and the resonance matching circuit 13b may be built in the inverter 12b.
  • the resonance matching circuits 13a and 13b may be built in the inverters 12a and 12b when the fixed matching type is used, and may be provided as an external circuit of the inverters 12a and 12b when the variable matching type or the automatic matching type is used.
  • the resonance matching circuit 41a is provided outside the full-wave rectification circuit 42a, and the resonance matching circuit 41b is provided outside the full-wave rectification circuit 42b.
  • the present invention is not limited to this, and the resonance matching circuit 41a may be incorporated in the full wave rectification circuit 42a, and the resonance matching circuit 41b may be incorporated in the full wave rectification circuit 42b.
  • the resonance matching circuits 41a and 41b are fixed matching type, they are built in the full wave rectification circuits 42a and 42b, and when they are variable matching type or automatic matching type, they are provided as external circuits of the full wave rectification circuits 42a and 42b. May be.
  • a commercial alternating current is input, and the input circuit 11 that outputs half-wave rectified power of the commercial alternating current and power having a phase difference of 180 degrees with respect to the power.
  • the transmission side AC / AC converter 1 which has the inverter 12a, 12b which converts the corresponding electric power from the input circuit 11 into the electric power of the frequency higher than the frequency of the said commercial alternating current, and the electric power converted by the corresponding inverter 12a, 12b Are received by the resonance-type transmission antennas 2a and 2b, the resonance-type reception antennas 3a and 3b that receive the power transmitted by the corresponding resonance-type transmission antennas 2a and 2b, and the corresponding resonance-type reception antennas 3a and 3b.
  • power conversion is performed twice (DC conversion and frequency conversion) on the transmission side, and power conversion is performed twice (DC conversion and frequency conversion) on the reception side.
  • power transmission device on the transmission side, power is converted once (frequency conversion) with respect to positive power out of input commercial alternating current, and with respect to negative power.
  • Power conversion is performed once (frequency conversion). Therefore, on the transmission side, power conversion is performed once as a whole.
  • the power conversion (rectification) is performed once on the receiving side as a whole. Therefore, the conversion efficiency is higher than that of the conventional configuration, and the input / output power transmission efficiency in the entire apparatus can be increased.
  • the input / output power transmission efficiency in the entire device can be increased and the heat generation amount can be reduced as compared with the conventional configuration, so that the heat sink structure for heat dissipation is reduced.
  • the whole apparatus can be reduced in size, weight, and cost compared with the conventional configuration.
  • the power transmission device according to Embodiment 1 since the power transmission device according to Embodiment 1 has high power transmission efficiency, application to a high-power type transmission device is more effective.
  • any component of the embodiment can be modified or any component of the embodiment can be omitted within the scope of the invention.
  • the power transmission device can output AC with the same frequency as the commercial AC by inputting commercial AC and transmitting power without using an AC / DC converter and a DC / AC inverter, It is suitable for use in a power transmission device or the like that receives commercial AC and transmits power and outputs AC of the same frequency as the commercial AC.
  • Transmission side AC / AC converter high frequency power supply
  • 2a, 2b Resonance type transmission antenna 3a, 3b Resonance type reception antenna
  • 4 Reception side AC / AC converter High frequency rectification circuit
  • 5 Transmission device 6 Reception device
  • 7 Commercial AC source 8a, 8b conductor, 11 input circuit, 12a, 12b inverter, 13a, 13b resonance matching circuit, 14 return line, 41a, 41b resonance matching circuit, 42a, 42b full wave rectification circuit, 43 output circuit, 51 fixed Part, 52 moving body.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

La présente invention concerne : un convertisseur c.a./c.a. côté transmission (1) comprenant un circuit d'entrée (11) dans lequel un courant alternatif commercial est entré et qui délivre la puissance obtenue en soumettant le courant alternatif commercial à un redressement de demi-onde et la puissance ayant une différence de phase de 180 degrés par rapport à ladite puissance et des onduleurs (12a, 12b) qui convertissent les puissances correspondantes provenant du circuit d'entrée (11) en puissances ayant une fréquence supérieure à la fréquence du courant alternatif commercial ; des antennes de transmission à résonance (2a, 2b) pour la transmission des puissances converties par les onduleurs correspondants (12a, 12b) ; des antennes de réception à résonance (3a, 3b) pour recevoir les puissances transmises par les antennes de transmission à résonance correspondantes (2a, 2b) ; et un convertisseur c.a./c.a. côté réception (4) comprenant des circuits de redressement à onde pleine (42a, 42b) qui soumettent les puissances reçues par les antennes de réception à résonance correspondantes (3a, 3b) à un redressement à onde pleine et un circuit de sortie (43) qui synthétise les puissances qui ont été soumises au redressement à onde pleine par les circuits de redressement à onde pleine (42a, 42b) respectifs, après inversion de la polarité d'une desdites puissances.
PCT/JP2016/051885 2016-01-22 2016-01-22 Dispositif de transmission de puissance, alimentation en puissance haute fréquence et circuit de redressement haute fréquence WO2017126110A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2016525618A JP6058222B1 (ja) 2016-01-22 2016-01-22 電力伝送装置、高周波電源及び高周波整流回路
PCT/JP2016/051885 WO2017126110A1 (fr) 2016-01-22 2016-01-22 Dispositif de transmission de puissance, alimentation en puissance haute fréquence et circuit de redressement haute fréquence
TW105121887A TW201728047A (zh) 2016-01-22 2016-07-12 電力傳送裝置、高頻率電源及高頻率整流電路

Applications Claiming Priority (1)

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PCT/JP2016/051885 WO2017126110A1 (fr) 2016-01-22 2016-01-22 Dispositif de transmission de puissance, alimentation en puissance haute fréquence et circuit de redressement haute fréquence

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Publication number Priority date Publication date Assignee Title
EP3595131A4 (fr) * 2017-03-10 2021-01-06 Mitsubishi Electric Engineering Company, Limited Dispositif de transmission d'énergie de type à résonance et système de transfert d'énergie de type à résonance

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JPS5329530A (en) * 1976-08-31 1978-03-18 Hakujiyu Seikagaku Kenkiyuushi Apparatus for generating high ac voltage
JPS5329529A (en) * 1976-08-31 1978-03-18 Hakujiyu Seikagaku Kenkiyuushi Apparatus for generating high ac voltage
JP2008520178A (ja) * 2004-11-10 2008-06-12 モストヴォイ、アレキサンダー 電圧信号の変換調整方法及び装置
WO2013065254A1 (fr) * 2011-11-01 2013-05-10 パナソニック株式会社 Circuit d'attaque de grille
US20140252877A1 (en) * 2011-10-18 2014-09-11 Paul Vahle Gmbh & Co. Kg Artificial mains network in the secondary circuit of the contactless energy transfer
JP2015077027A (ja) * 2013-10-10 2015-04-20 株式会社東芝 移動体、無線電力伝送システムおよび無線電力伝送方法
WO2015081065A1 (fr) * 2013-11-27 2015-06-04 Momentum Dynamics Corporation Transmission sans fil à fréquence de secteur et à tension de secteur

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GB2352931A (en) * 1999-07-29 2001-02-07 Marconi Electronic Syst Ltd Piezoelectric tag
JP5741962B2 (ja) * 2012-11-30 2015-07-01 株式会社デンソー 非接触給電装置
JP6361282B2 (ja) * 2014-05-23 2018-07-25 日産自動車株式会社 非接触給電装置

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Publication number Priority date Publication date Assignee Title
JPS5329530A (en) * 1976-08-31 1978-03-18 Hakujiyu Seikagaku Kenkiyuushi Apparatus for generating high ac voltage
JPS5329529A (en) * 1976-08-31 1978-03-18 Hakujiyu Seikagaku Kenkiyuushi Apparatus for generating high ac voltage
JP2008520178A (ja) * 2004-11-10 2008-06-12 モストヴォイ、アレキサンダー 電圧信号の変換調整方法及び装置
US20140252877A1 (en) * 2011-10-18 2014-09-11 Paul Vahle Gmbh & Co. Kg Artificial mains network in the secondary circuit of the contactless energy transfer
WO2013065254A1 (fr) * 2011-11-01 2013-05-10 パナソニック株式会社 Circuit d'attaque de grille
JP2015077027A (ja) * 2013-10-10 2015-04-20 株式会社東芝 移動体、無線電力伝送システムおよび無線電力伝送方法
WO2015081065A1 (fr) * 2013-11-27 2015-06-04 Momentum Dynamics Corporation Transmission sans fil à fréquence de secteur et à tension de secteur

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JP6058222B1 (ja) 2017-01-11
TW201728047A (zh) 2017-08-01

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