CN110112928A - A kind of electric energy transfer device - Google Patents
A kind of electric energy transfer device Download PDFInfo
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- CN110112928A CN110112928A CN201910433959.7A CN201910433959A CN110112928A CN 110112928 A CN110112928 A CN 110112928A CN 201910433959 A CN201910433959 A CN 201910433959A CN 110112928 A CN110112928 A CN 110112928A
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- 238000012546 transfer Methods 0.000 title claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
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- 239000003990 capacitor Substances 0.000 claims description 35
- 230000006641 stabilisation Effects 0.000 claims description 13
- 238000011105 stabilization Methods 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 11
- 238000002834 transmittance Methods 0.000 abstract description 4
- 230000009514 concussion Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 15
- 230000010355 oscillation Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
- H02M5/42—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
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Abstract
The present invention provides a kind of electric energy transfer device, comprising: the input terminal of frequency converter, the frequency converter is connected with external power supply；Resonance circuit, the input terminal of the resonance circuit are connected with the output end of the frequency converter, for transmitting the electric energy of the frequency converter output by the way of high-frequency resonant concussion；Conversion circuit, the input terminal of the conversion circuit is connected with the output end of the resonance circuit, the output end of the conversion circuit is connected with load, it is changed for carrying out AC-DC/DC-AC circulation to the alternating current exported by the resonance circuit, and the signal after conversion is supplied to load, reduce loss of the electric energy in transmittance process.
Description
Technical field
The present invention relates to electrical equipment technical fields, and in particular to a kind of electric energy transfer device.
Background technique
Electric energy transfer device be it is a kind of transmit electric power equipment, it is known that electric energy transmission equipment (Russ P №
2340064, bulletin 33), it is that generator voltage is increased to 1-1000 kilovolts by high-tension transformer, is then fed to controlled
And then high speed inverter is fed to the series resonant circuit being made of capacitor and inductance, form high frequency high voltage transformer
Armature winding.The capacitor charging of resonance circuit to voltage reaches 1-1000 kilovolts, and under mode of resonance and frequency is 0.4-
It discharges when 1000 kHz.It is micro- in 10-1000 when electric current is 1-500 kilo-ampere by inductance and high speed current interrupter
Second can in high frequency transformer magnetic field accumulated generation function amount.Primary winding current commutator circuit is disconnected, by the magnetic field of storage
Energy is converted into the electric energy in high frequency transformer secondary windings.Voltage is increased to 10-100000 kilovolts, and under mode of resonance
It is transmitted to consumer.The equipment includes the step-up transformer that an output voltage is 1-1000 kilovolts, is inputted end and connects
It is connected to generator, and possesses identical frequency with generator, and output end is parallel-connected to controlled high speed inverter, changes
It is 1-500 kilo-ampere to electric current, current pulse duration is 10-1000 microsecond.Inverter and the high frequency transformer that boosts
Series resonant circuit is connected in parallel, and resonance frequency is 0.4-1000 kHz, and single conductor road voltage is 10-100000 kilovolts.
Electric energy known to another kind transmission equipment (Russ P № 2273939, bulletin 10), under mode of resonance
Electric energy is transmitted by singly leading insulated cable under water in underground, and wherein resonance frequency is 50 hertz of -50 kHz, voltage 1-
1000 kilovolts, current density is 1-500 peace/square millimeter, is 0.01- especially by a length of cross section meter ﹑ 1-20000 Qian
When 1000 square centimeters of multicore cable transmits electric energy, cable size is more than 5-100 times of conductor diameter.
Under mode of resonance in underground or under water when transmission electric energy, another known electric energy transmission mode is to pass through
Along axisymmetric single line waveguide transmission, insulating gas, especially six are full of in the hollow dielectric cylindrical type pipeline of sealing
Sulfur fluoride needs thousand grams/cm of pressure 1-10.
It is the single electrostatic screen and electrical isolation waveguide transmission by surface wave there are also a kind of mode for transmitting electric energy, in
Insulating gas is full of in the shielding of hollow round column type and encapsulated dielectric pipeline.High-voltage line can be laid on underground or underwater, as single line
Waveguide, long 1-20000 km, cross section be 0.01-1000 square centimeter, be axisymmetrically mounted on diameter for 0.02-10 meter ﹑ by
In the pipeline of dielectric material composition.In order to increase transmission voltage and power, the electrical isolation that waveguide is 3-300 millimeters by insulation thickness
Cable is made, and the space between waveguide and pipeline is filled with the electrical isolation gas under pressure, such as filling sulfur hexafluoride.High pressure
Line is 0.01-1000 square centimeters as single line waveguide, long 1-20000 km, cross section, and being axisymmetrically mounted on diameter is
In the pipeline that 0.02-10 meter ﹑ is made of dielectric material, and contain an electrical shielding, is by the not closed of a large amount of electrically insulated from one another
Cylindrical type conductive layer composition, total length are equal to waveguide length, and the length of each conductive layer is 1-1000 meters.
There is the known method (patent № 97117756) along single conductor transmission electric energy of one kind again, is by by means of having
The high frequency oscillator of effective amplifier element, obtains high-frequency current, and by specified electric current be supplied to step-up transformer it is primary around
Group, step-up transformer secondary windings disconnect, singly lead transmission line and load is connected to step-up transformer.Its main feature is that using boosting
Transformer, armature winding are three-level, its tap is connected with effective amplifier element of high frequency oscillator, form self-oscillation
Device, high frequency oscillator are run in three point circuit, are pressing transformer ﹑ is mono- to lead transmission line and load comprising rising from Induced Oscillation device ﹑
In system, automatic adjustment and maintenance resonance electric oscillation.In this case, the one of transmission line and step-up transformer secondary windings is singly led
End is connected or step-up transformer supplement one single-stage insulation component of addition, is located inside or outside step-up transformer, is used for
The energy of step-up transformer radiation is collected, and singly leads transmission line and is connected on this specified element.
The shortcomings that these methods is to load a part that (consumer) is resonance circuit, and the variation of load will affect circuit
Parameter.In consideration of it, voltage changes on transmission line of electricity, correspondingly the load of consumer can also change.In addition, using these electricity
Can transmission method, oscillation of the voltage in idle running in circuit, more than several times of the numerical value that works under a load, therefore,
Sizable reactive current is flowed in conveying equipment, this consumes the electric energy of generator significantly.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of electric energy transfer device, reduced in electric energy transmission process with realizing
Energy loss.
To achieve the above object, the embodiment of the present invention provides the following technical solutions:
A kind of electric energy transfer device, comprising:
The input terminal of frequency converter, the frequency converter is connected with external power supply；
Resonance circuit, the input terminal of the resonance circuit are connected with the output end of the frequency converter, for using harmonic high frequency
The mode of vibration concussion transmits the electric energy of the frequency converter output；
Conversion circuit, the input terminal of the conversion circuit are connected with the output end of the resonance circuit, the conversion circuit
Output end be connected with load, changed for carrying out AC-DC/DC-AC circulation to the alternating current that is exported by the resonance circuit, and general
Signal after conversion is supplied to load.
Optionally, in above-mentioned electric energy transfer device, the frequency converter is included at least:
Controller, power cascade and feedback unit；
For the sampled signal of the output of the feedback unit to be compared with setting value, foundation compares the controller
As a result the control signal for controlling the cascade working condition of the power is exported, so that the cascade output frequency of the power
It is synchronous with the resonance frequency of the power transmission line in the electric energy transfer device；
The power stage combination converts the input signal of the external power supply in the control signal for responding the controller
And export, the control signal that the frequency of the power cascade output signal is exported with the controller matches；
The feedback unit, for sampling to the cascade output frequency of the power, the sampling that sampling is obtained is believed
Number it is sent to the controller.
Optionally, in above-mentioned electric energy transfer device, the frequency converter further include:
Load stabilization unit, the load stabilization unit, will for sampling to the output voltage of the conversion circuit
Sampling to sampled voltage be sent to the controller；
The controller is also used to: the sampled voltage of the output of the load stabilization unit and setting voltage are compared
Compared with according to the comparison result adjustment cascade output voltage of power.
Optionally, in above-mentioned electric energy transfer device, the resonance circuit is included at least:
The first end of first resonance coil, first resonance coil is connected with the cascade positive output end of the power；
First capacitor device, the first end of the first capacitor device is connected with the second end of first resonance coil, described
The second end of first capacitor device is connected with the cascade negative output terminal of the power；
First transformer, the second end phase of the first end of the main winding of first transformer and first resonance coil
Even, the second end ground connection of the main winding of first transformer or insulation capacitor, the secondary windings of first transformer and institute
Conversion circuit input terminal is stated to be connected.
Optionally, in above-mentioned electric energy transfer device, the resonance circuit is included at least:
The first end of second capacitor, second capacitor is connected with the cascade positive output end of the power；
Second transformer, the first end phase of the first end of the main winding of second transformer and second capacitor
Even, the second end of the main winding of first transformer is connected with the cascade negative output terminal of the power；
The secondary windings of third transformer, the first end of the main winding of the third transformer and second transformer
First end is connected, the second end of the secondary windings of the first end of the main winding of the third transformer and second transformer
Ground connection or insulation capacitor；The secondary windings of the third transformer is connected with the conversion circuit input terminal.
Optionally, in above-mentioned electric energy transfer device, the conversion circuit is rectifier or inverter.
Based on the above-mentioned technical proposal, electric energy transfer device provided in an embodiment of the present invention is when transmitting electric energy, electric energy transmission
Equipment passes through frequency converter first and converts to electric signal provided by external power supply, and carries out signal biography using resonance circuit
It is defeated, high frequency oscillation signal is passed into conversion circuit, the conversion circuit is again converted to high frequency oscillation signal and load phase
The electric signal matched is supplied to load, reduces loss of the electric energy in transmittance process.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of electric energy transfer device disclosed in the embodiment of the present application；
Fig. 2 is the structural schematic diagram of the frequency converter of electric energy transfer device disclosed in the embodiment of the present application；
Fig. 3 is the structural schematic diagram of the frequency converter of electric energy transfer device disclosed in another embodiment of the application；
Fig. 4 is the structural schematic diagram of electric energy transfer device disclosed in another embodiment of the application；
Fig. 5 is the structural schematic diagram of electric energy transfer device disclosed in another embodiment of the application；
Fig. 6 is the structural schematic diagram of electric energy transfer device disclosed in another embodiment of the application；
Fig. 7 is the structural schematic diagram of electric energy transfer device disclosed in another embodiment of the application.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to reduce electric energy transfer device when transmitting to electric energy, generated power consumption, this application discloses
A kind of electric energy transfer device, referring to Fig. 1, the electric energy transfer device includes:
The input terminal of frequency converter 100, the frequency converter 100 is connected with external power supply, and the frequency converter 100 is used for: foundation
Setting operating condition is converted and is exported to by the collected electric energy of external power supply, it is preferred that in order to improve the ability of transmission electric energy,
The output voltage of frequency converter 100 described in technical solution can be and the electric energy transfer device disclosed in the embodiment of the present application
The maximum value that can carry of transmission line of electricity, that is, the frequency converter 100 is by the control mode of self feed back by the electricity in power transmission line
Pressure value is maintained in the constant level of maximum load；
Resonance circuit 200, the input terminal of the resonance circuit 200 is connected with the output end of the frequency converter 100, for adopting
The electric energy that the frequency converter 100 exports is transmitted with the mode that high-frequency resonant shakes, wherein the resonance circuit 200 is for using
The electric signal that the mode of high frequency oscillation exports the frequency converter 100 transmits, also, research has shown that, oscillating circuit exists
When transmitting to electric energy, electric energy generated loss in transmittance process is lower；
Conversion circuit 300, the input terminal of the conversion circuit 300 is connected with the output end of the resonance circuit 200, described
The output end of conversion circuit 300 is connected with load, for the alternating current exported by the resonance circuit 200 into AC-DC/DC-
AC circulation is changed, and the signal after conversion is supplied to load.
Disclosed in the above embodiments of the present application in technical solution, the electric energy transfer device passes through frequency converter 100 first
Electric signal provided by external power supply is converted, and signal transmission is carried out using resonance circuit 200, by high frequency oscillation signal
Conversion circuit 300 is passed to, high frequency oscillation signal is converted to the electric signal to match with load again and mentioned by the conversion circuit 300
Supply load, reduces loss of the electric energy in transmittance process.
Further, disclosed in the above embodiments of the present application in technical solution, in order to further decrease in transmission process
Electric energy loss, the oscillation frequency of 100 output signal of frequency converter can be humorous with the transmission line in electric energy transfer device
Vibration frequency matches, specifically, referring to fig. 2, the frequency converter 100 is at least disclosed in the embodiment of the present application in technical solution
Include:
Controller 110, power cascade 120 and feedback unit 130；
The controller 110 is used to for the sampled signal of the output of the feedback unit 130 being compared with setting value, according to
The control signal of working condition according to comparison result output for controlling the power cascade 120, so that the power cascades
120 output frequency is synchronous with the resonance frequency of power transmission line in the electric energy transfer device；
The power cascade 120 is used to respond the control signal of the controller 110, and the input of the external power supply is believed
It number converts and exports, the power cascades the control signal phase that the frequency of 120 output signals is exported with the controller 110
Match；
The feedback unit 130 obtains sampling for sampling to the output frequency of power cascade 120
Sampled signal is sent to the controller 110.
In scheme implementation process, oscillation frequency of the feedback unit 130 to the output signal of power cascade 120
It is sampled, sampled result is sent to the controller 110, the controller 110 will sample obtained oscillation frequency and set
Definite value is compared, the control signal of the working condition according to comparison result output for controlling the power cascade 120, so that
The output frequency for obtaining the power cascade 120 is synchronous with the resonance frequency of power transmission line in the electric energy transfer device, herein,
The preset value also refers to the resonance frequency of the power transmission line in the electric energy transfer device or the resonance of resonance circuit 200
Frequency, naturally it is also possible to refer to the resonance frequency that mean value either the two of the two is obtained according to default weight accounting.
Disclosed in another embodiment of the application in technical solution, the specification phase of the power transmission line in the electric energy transfer device
Together, for example, transmission of electricity between the first end of the main winding 230 of one end of the first capacitor device 220 and first transformer
Line.
Further, for the stabilized input voltage of proof load, referring to Fig. 3, the frequency converter 100 further include:
Load stabilization unit 140, the load stabilization unit 140 be used for the output voltage of the conversion circuit 300 into
Row sampling, by sampling to sampled voltage be sent to the controller 110；The controller 110 is also used to: by the load
The sampled voltage for stablizing the output of unit 140 is compared with setting voltage, adjusts the power cascade 120 according to comparison result
Output voltage, wherein priority of the power cascade 120 when executing this operation, higher than the power stage in frequency converter 100
Voltage value in power transmission line is maintained at preferential in the constant level of maximum load by the control mode of self feed back by connection 120
Grade.
Disclosed herein as well is a kind of specific structures of resonance circuit 200, match with Fig. 2 embodiment provided,
Referring to fig. 4, the resonance circuit 200 includes at least:
First resonance coil 210, the positive output of the first end of first resonance coil 210 and power cascade 120
End is connected；
First capacitor device 220, the second end of the first end of the first capacitor device 220 and first resonance coil 210
It is connected, the second end of the first capacitor device 220 is connected with the negative output terminal of power cascade 120；
First transformer, the of the first end of the main winding 230 of first transformer and first resonance coil 210
Two ends are connected, the second end ground connection of the main winding 230 of first transformer or insulation capacitor, the secondary of first transformer
Winding 240 is connected with 300 input terminal of conversion circuit.
Wherein, lead between the first end of the main winding 230 of one end of the first capacitor device 220 and first transformer
It crosses power transmission line 7 to be connected, passes through 6 phase of power transmission line between one end of the first capacitor device 220 and the input terminal of the controller 110
Even.
In the electric energy transfer device work that Fig. 4 is provided, electric energy is transmitted through the vibration of the high-frequency resonant in electric energy transfer device
Circuit transmission progress is swung, the power transmission line of singly leading which is connected by 200 ﹑ Bian Ya Qi ﹑ of resonance circuit and between them forms.Power supply
Voltage carries out Voltage Feedback conversion by frequency from the feed circuit, and the present embodiment is in order to electric by the output in power transmission line
Pressure value is maintained in the constant level of maximum load, has also carried out frequency feedback conversion so that make the frequency converter 100 with
The resonance frequency of output resonant circuit 200 and power transmission line is synchronous.
Match with Fig. 3 embodiment provided, referring to Fig. 5,
The frequency converter 100 includes: controller 110, power cascade 120, feedback unit 130 and load stabilization unit 140；
The resonance circuit 200 includes at least: the first resonance coil 210, first capacitor device 220, the first transformer, transmission of electricity
Line 7, power transmission line 6；
In the electric energy transfer device work that Fig. 5 is provided, electric energy is transmitted through the vibration of the high-frequency resonant in electric energy transfer device
Circuit transmission progress is swung, the power transmission line of singly leading which is connected by 200 ﹑ Bian Ya Qi ﹑ of resonance circuit and between them forms.Power supply
Voltage carries out feedback three times by frequency and converts, and be Voltage Feedback for the first time completes inside power cascade 120, in order to will
Voltage value in power transmission line is maintained in the constant level of maximum load, be for the second time frequency feedback be by the controller 110,
Feedback unit 130 and power cascade 120 are completed jointly, in order to make frequency converter 100 output signal oscillation frequency with it is defeated
The resonance frequency of resonance circuit 200 and power transmission line is synchronous out, and third time feedback is by the load stabilization unit 140 and power
Cascade 120 is completed jointly, is for the stabilization of voltage in loading.
In addition the application also discloses a kind of specific structure of resonance circuit 200, the embodiment phase provided with Fig. 2
Match, referring to Fig. 6, the resonance circuit 200 is included at least:
Second capacitor 250, the first end and the positive output end phase of power cascade 120 of second capacitor 250
Even；
The first of second transformer, the first end of the main winding 260 of second transformer and second capacitor 250
End is connected, and the second end of the main winding 230 of first transformer is connected with the negative output terminal of power cascade 120；
Third transformer, the first end of the main winding 280 of the third transformer and second transformer it is secondary around
The first end of group 270 is connected, the first end of the main winding 280 of the third transformer and second transformer it is secondary around
The second end ground connection of group 270 or insulation capacitor；The secondary windings 290 of the third transformer and the conversion circuit 300 input
End is connected.
In the electric energy transfer device work that Fig. 6 is provided, electric energy is transmitted through the vibration of the high-frequency resonant in electric energy transfer device
Circuit transmission progress is swung, which is made of the second transformer, the 3rd power transmission line of singly leading for becoming pressure device ﹑ and being connected between them.
Supply voltage has the first transformer output to carry out Voltage Feedback conversion, this reality by frequency from the feed circuit
Example is applied in order to which the output voltage values in power transmission line are maintained in the constant level of maximum load, frequency feedback has also been carried out and has turned
It changes, so that making the synchronous with the resonance frequency of output resonant circuit 200 and power transmission line of the frequency converter 100.
Match with Fig. 3 embodiment provided, referring to Fig. 7, the frequency converter 100 includes: controller 110, power cascade
120, feedback unit 130 and load stabilization unit 140；
The resonance circuit 200 includes at least: the second capacitor 250, the second transformer, third transformer.
In the electric energy transfer device work that Fig. 7 is provided, electric energy is transmitted through the vibration of the high-frequency resonant in electric energy transfer device
Circuit transmission progress is swung, which is made of the second transformer, the 3rd power transmission line of singly leading for becoming pressure device ﹑ and being connected between them.
Supply voltage has the first transformer output to carry out Voltage Feedback conversion, this reality by frequency from the feed circuit
Example is applied in order to which the output voltage values in power transmission line are maintained in the constant level of maximum load, frequency feedback has also been carried out and has turned
It changes, so that making the synchronous with the resonance frequency of output resonant circuit 200 and power transmission line of the frequency converter 100.
In the technical solution that the above embodiments of the present application provide, the conversion circuit 300 can be rectifier or inversion
Device.
It is described outer in the embodiment corresponding to Fig. 6 or Fig. 7 in the technical solution that the above embodiments of the present application provide
Portion's power supply also refers to power grid, solar battery, battery etc., in equipment work, electric energy from electricity Wang ﹑ Tai is positive can electricity Chi ﹑
Battery etc. is transmitted on frequency converter 100, is then transported to the second transformer of boosting (in the application by the second capacitor 250
In technical solution disclosed in embodiment, each transformer is high-frequency resonant transformer) low pressure winding (main winding), or
It is that in the embodiment corresponding to Fig. 4 or Fig. 5, in equipment work, electric energy is transmitted from positive energy electricity Chi ﹑ battery of electricity Wang ﹑ Tai etc.
Onto frequency converter 100, it is then delivered to the series resonance electricity being made of first capacitor device 220, resonance coil and the first transformer
Road 200.The high-voltage winding (main winding) of first transformer is connected to by itself High voltage output and singly leads power transmission line 7.The
The low-potential energy of one transformer high-voltage winding 11 is exported through capacitor or is grounded without capacitor.In the above-mentioned implementation of the application
In technical solution disclosed in example, the resonance frequency of each transformer or transmission line of electricity is 1 kHz --- between 100 kHz
Arbitrary value.The voltage for singly leading power transmission line 7 is 0.5 kilovolt --- the arbitrary value between 100 kilovolts.
One or more load is connected to by inverter singly leads power transmission line, the output of the first transformer or third transformer
It is defeated that standard has can be set in winding (secondary windings) connection conversion circuit 300 (rectifier or inverter), rectifier or inverter
Voltage out.
Electric energy is transmitted through the progress of the high-frequency resonant oscillation transmission in circuit, and the circuit is by 200 ﹑ resonance transformation of resonance circuit
Qi ﹑ and the power transmission line of singly leading being connected between them form.Supply voltage carries out feedback three times by frequency and converts, and is electricity for the first time
Pressure feedback, is frequency feedback for the second time in order to which the voltage value in power transmission line to be maintained in the constant level of maximum load, in order to
Keep master oscillator synchronous with the resonance frequency of output resonant circuit 200 and power transmission line, third time feedback is for electricity in loading
The stabilization of pressure.
Through the above scheme, the effect of electric energy transfer device provided herein is:
It improves efficiency, increases from the energy to the distance of consumer's electrical energy transportation, reduce the consumption of non-ferrous metal, no matter and negative
The stability that how can reinforce transmitting voltage carried.Electric energy is transmitted through the progress of the high-frequency resonant oscillation transmission in circuit, the electricity
Routing 100 ﹑ of frequency converter boosting resonance transformer (the second transformer) ﹑ is mono- to lead power transmission line and decompression high frequency transformer (the first transformation
Device or third transformer) composition.Frequency converter 100 has Voltage Feedback, in order to be maintained at the output voltage values in power transmission line most
In the constant level of heavy load, there is frequency feedback, also in order to become the frequency of oscillation of output signal of frequency converter 100 with output
The resonance frequency of depressor and power transmission line is synchronous.
To sum up the electric energy from the energy can be converted to high-frequency and high-voltage by the present application, and by single conductor that electric energy is defeated
It is sent to the consumer of installation down converter 100.The efficiency of transmission of electric energy is improved, can be increased from the energy to consumer's electric energy
The distance of conveying reduces the consumption of non-ferrous metal in power transmission line.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (6)
1. a kind of electric energy transfer device characterized by comprising
The input terminal of frequency converter, the frequency converter is connected with external power supply；
Resonance circuit, the input terminal of the resonance circuit are connected with the output end of the frequency converter, for being shaken using high-frequency resonant
The mode swung transmits the electric energy of the frequency converter output；
Conversion circuit, the input terminal of the conversion circuit are connected with the output end of the resonance circuit, the conversion circuit it is defeated
Outlet is connected with load, changes for carrying out AC-DC/DC-AC circulation to the alternating current exported by the resonance circuit, and will conversion
Signal afterwards is supplied to load.
2. electric energy transfer device according to claim 1, which is characterized in that the frequency converter includes at least:
Controller, power cascade and feedback unit；
The controller is for the sampled signal of the output of the feedback unit to be compared with setting value, according to comparison result
The control signal for controlling the cascade working condition of the power is exported, so that the cascade output frequency of the power and institute
The resonance frequency for stating the power transmission line in electric energy transfer device is synchronous；
Power stage combination is in the control signal for responding the controller, by the input signal conversion of the external power supply and defeated
Out, the control signal that the frequency of the power cascade output signal is exported with the controller matches；
The feedback unit, for sampling to the cascade output frequency of the power, the sampled signal that sampling is obtained is sent out
Give the controller.
3. electric energy transfer device according to claim 2, which is characterized in that the frequency converter further include:
Load stabilization unit, the load stabilization unit will be sampled for sampling to the output voltage of the conversion circuit
To sampled voltage be sent to the controller；
The controller is also used to: the sampled voltage of the output of the load stabilization unit is compared with setting voltage, according to
The cascade output voltage of power is adjusted according to comparison result.
4. according to electric energy transfer device described in Claims 2 or 3 any one, which is characterized in that the resonance circuit is at least
Include:
The first end of first resonance coil, first resonance coil is connected with the cascade positive output end of the power；
First capacitor device, the first end of the first capacitor device are connected with the second end of first resonance coil, and described first
The second end of capacitor is connected with the cascade negative output terminal of the power；
First transformer, the first end of the main winding of first transformer are connected with the second end of first resonance coil,
The second end of the main winding of first transformer is grounded or insulation capacitor, the secondary windings of first transformer with described turn
Circuit input end is changed to be connected.
5. according to electric energy transfer device described in Claims 2 or 3 any one, which is characterized in that the resonance circuit is at least
Include:
The first end of second capacitor, second capacitor is connected with the cascade positive output end of the power；
Second transformer, the first end of the main winding of second transformer are connected with the first end of second capacitor, institute
The second end for stating the main winding of the first transformer is connected with the cascade negative output terminal of the power；
The first of the secondary windings of third transformer, the first end of the main winding of the third transformer and second transformer
End is connected, the second end ground connection of the secondary windings of the first end of the main winding of the third transformer and second transformer
Or insulation capacitor；The secondary windings of the third transformer is connected with the conversion circuit input terminal.
6. electric energy transfer device according to claim 1, which is characterized in that the conversion circuit is rectifier or inversion
Device.
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| CN201910433959.7A CN110112928B (en) | 2019-05-23 | 2019-05-23 | Electric energy transmission equipment |
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|---|---|---|---|
| CN201910433959.7A CN110112928B (en) | 2019-05-23 | 2019-05-23 | Electric energy transmission equipment |
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| CN110112928A true CN110112928A (en) | 2019-08-09 |
| CN110112928B CN110112928B (en) | 2020-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113412045A (en) * | 2021-06-26 | 2021-09-17 | 奥士康精密电路（惠州）有限公司 | Production equipment shutdown signal shielding device and shielding method thereof |
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| CN1701497A (en) * | 2003-08-06 | 2005-11-23 | 索尼株式会社 | Switching power supply circuit |
| US20060114697A1 (en) * | 2003-08-06 | 2006-06-01 | Masayuki Yasumura | Switching power supply circuit |
| EP1684405A2 (en) * | 2005-01-25 | 2006-07-26 | Sony Corporation | Switching power supply circuit |
| CN103312173A (en) * | 2012-03-14 | 2013-09-18 | 中国石油天然气集团公司 | Non-contact electric energy transmission system for vertical drilling system |
| CN104734514A (en) * | 2013-12-18 | 2015-06-24 | 德州仪器德国股份有限公司 | Primary side current regulation on llc converters for led driving |
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| CN1701497A (en) * | 2003-08-06 | 2005-11-23 | 索尼株式会社 | Switching power supply circuit |
| US20060114697A1 (en) * | 2003-08-06 | 2006-06-01 | Masayuki Yasumura | Switching power supply circuit |
| EP1684405A2 (en) * | 2005-01-25 | 2006-07-26 | Sony Corporation | Switching power supply circuit |
| CN103312173A (en) * | 2012-03-14 | 2013-09-18 | 中国石油天然气集团公司 | Non-contact electric energy transmission system for vertical drilling system |
| CN104734514A (en) * | 2013-12-18 | 2015-06-24 | 德州仪器德国股份有限公司 | Primary side current regulation on llc converters for led driving |
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| CN113412045A (en) * | 2021-06-26 | 2021-09-17 | 奥士康精密电路（惠州）有限公司 | Production equipment shutdown signal shielding device and shielding method thereof |
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| Publication number | Publication date |
|---|---|
| CN110112928B (en) | 2020-12-18 |
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