CN106849860B - A kind of light-focusing type Wireless power transmission based on ENZ Meta Materials - Google Patents
A kind of light-focusing type Wireless power transmission based on ENZ Meta Materials Download PDFInfo
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- CN106849860B CN106849860B CN201710160788.6A CN201710160788A CN106849860B CN 106849860 B CN106849860 B CN 106849860B CN 201710160788 A CN201710160788 A CN 201710160788A CN 106849860 B CN106849860 B CN 106849860B
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Abstract
The present invention relates to a kind of light-focusing type Wireless power transmissions based on ENZ Meta Materials, including spherical cavity, contactless conduction rotary joint includes fixed disk, conducting stator and electric rotors, one end of conducting stator and the side of fixed disk are welded, the middle part of electric rotors is equipped with circular through hole, electric rotors and conducting stator are socketed, the top side and bottom side of hemispherical photovoltaic cell battle array are respectively provided with a contactless conductive rotary joint, the top side and bottom side of hemispherical photovoltaic cell battle array are affixed with electric rotors respectively, it is welded respectively with the other end of conducting stator at the both ends of microwave transmitting antenna system, the another side of fixed disk is equidistantly affixed with one end of three hauling ropes respectively, the top side and bottom side of spherical cavity are equipped with fixed ring, the other end of three hauling ropes is equidistantly fixedly connected with fixed ring respectively, control computer with it is non- Contact conduction rotary joint is connected, to control contactless conductive rotary joint to realize hemispherical photovoltaic cell battle array Direct to the sun.
Description
Technical field
The invention belongs to field of space technology, in particular to a kind of light-focusing type space solar electricity based on ENZ Meta Materials
It stands.
Background technique
The energy is one of the material base that the mankind depend on for existence and development.With the development of society, need of the mankind to the energy
The amount of asking is increasing.The year two thousand fifty is expected, world population will be more than 10,000,000,000, correspondingly, demand of the mankind for the energy
By from 15TW in 2007, the 50TW of the year two thousand fifty is risen to.And as the prehuman main energy sources of mesh --- fossil
The energy in the near future will be depleted.Thus, human needs seek a kind of novel sustainable development source.
Solar energy is a kind of inexhaustible green energy resource, is received more and more attention.The ground sun
Can, due to it by Four seasons change, round the clock, the factors such as weather influenced, the average power density for being irradiated to ground is only 140W/
m2.And in the outer space, the average power density of the reception solar energy that 1 year 99% time all can be stable, solar energy is up to
1368W/m2.It how to be efficiently thus one of the project for needing the mankind constantly to explore using space solar.
Wireless power transmission (Space Solar Power Satellite-SSPS) be it is a kind of too airborne acquisition too
Positive energy, then converts the solar into electric energy, then electric energy is transferred to the new energy system on ground in the form of microwave.This is general
It has read since nineteen sixty-eight proposes, receives the extensive concern of countries in the world, meanwhile, tens kinds of Wireless power transmission schemes are mentioned
Out.Generally speaking, existing Wireless power transmission scheme can be summarized as non-concentrating type and light-focusing type two major classes.In order to guarantee sky
Between solar power station efficient operation, photovoltaic cell/condenser need to be directed at the sun in real time, and transmitting antenna need to be directed at the earth in real time.
It is huge to guarantee sustainedly and stably to be surface power supply such as 1979-SSPS baseline system for non-concentrating type Wireless power transmission
The posture of type truss-like photovoltaic cell battle array need to be adjusted in real time to be directed at the sun.In this way, the control difficulty of system is big, and due to system
Not optically focused, required photovoltaic cell area is big, and mass of system is big, and cost is high.In order to reduce mass of system, while improving photovoltaic cell
Utilization rate, existing power station mostly use greatly light-focusing type scheme, such as integrate symmetrical optically focused Wireless power transmission, ALPHA-SSPS and
OMEGA-SSPS.It is independent in entire condenser system or condenser system in order to efficiently collect solar energy for light-focusing type scheme
Condenser need to adjust in real time.In this way, control system is complicated.Meanwhile light-focusing type scheme mostly uses greatly " sandwich " structure, i.e., by light
Volt battery, microwave transducers part and transmitting antenna three integrate.In this way, heat caused by device is difficult to shed, system
Heat problem it is serious.In addition, existing light-focusing type scheme has a problem that --- the oblique incidence problem of light is irradiated to
There are certain angle thetas for the normal direction of the sunlight of photovoltaic cell and photovoltaic cell.It will lead to system so effectively to collect too
Positive energy PIt collectsWith incident solar energy PIt is incidentThere are cosine relation (PIt collects=cos θ PIt is incident), the sunlight collection low efficiency of system.
Summary of the invention
Goal of the invention: the present invention has made improvements in view of the above-mentioned problems of the prior art, i.e., it is an object of the invention to
Overcome the problems, such as that existing light-focusing type Wireless power transmission scheme exists, proposes a kind of based on ENZ (ε-Near-Zero) Meta Materials
Diameter of Spherical Volume solar power station.It is difficult that the program not only solves the control that condenser need to adjust in real time in existing optically focused scheme
Topic, moreover it is possible to ensure that the vertical incidence of sunlight, so that the sunlight collection efficiency of system is substantially increased, in addition, the program
The existing problem that radiates of " sandwich " structure in existing optically focused scheme can also be alleviated to a certain extent.
Technical solution: a kind of light-focusing type Wireless power transmission based on ENZ Meta Materials, including spherical cavity, hemisphere
Shape photovoltaic cell battle array, contactless conductive rotary joint, microwave transmitting antenna system, hauling rope and control computer,
The contactless conductive rotary joint includes fixed disk, conducting stator and electric rotors, the conducting stator
The side of one end and the fixed disk is welded, and the middle part of the electric rotors is equipped with circular through hole, the electric rotors with it is described
Conducting stator socket,
The top side and bottom side of the hemispherical photovoltaic cell battle array are respectively provided with a contactless conductive rotary joint, and described half
The top side and bottom side of spherical photovoltaic cells battle array are affixed with electric rotors respectively, the both ends of microwave transmitting antenna system respectively with conduction
The other end of stator welds, and the another side of the fixed disk is equidistantly affixed with one end of three hauling ropes respectively,
The top side and bottom side of the spherical cavity are equipped with fixed ring, the other end of three hauling ropes respectively with fixed ring
Equidistantly it is fixedly connected,
Control computer is connected with contactless conductive rotary joint, controlling contactless conduction rotary joint thus
Realize hemispherical photovoltaic cell battle array Direct to the sun.
Further, the spherical cavity is mutually spliced by 3230 regular hexagon modules and 12 regular pentagon modules
It forms, the splicing of 3230 regular hexagon modules and 12 regular pentagon modules meets latitude and longitude division principle, adjacent module
Between be fixedly connected by three door shape connectors equidistantly laying,
The regular hexagon module includes regular hexagon framework and light transmission film, the shape and regular hexagon frame of light transmission film
The shape of frame is adapted, and the edge of light transmission film is equidistantly equipped with multiple connection rings, and one end of drag-line and the connection ring are affixed,
The other end of drag-line and regular hexagon framework are affixed,
The regular pentagon module includes regular pentagon framework and light transmission film, the shape and regular pentagon frame of light transmission film
The shape of frame is adapted, and the edge of light transmission film is equidistantly equipped with multiple connection rings, and one end of drag-line and the connection ring are affixed,
The other end of drag-line and regular pentagon framework are affixed.
Further, light transmission film is ENZ meta-material thin film.
Further, the hemispherical photovoltaic cell battle array includes by 1615 regular hexagon battery modules and 6 positive five sides
Shape battery module is mutually spliced, and the splicing of 1615 regular hexagon battery modules and 6 regular pentagon battery modules meets
Latitude and longitude division principle is fixedly connected between adjacent battery module by the three door shape connectors equidistantly laid,
The regular hexagon battery module includes photovoltaic cell and the regular hexagon support frame that is made of hollow carbon fiber pipe
Frame, the shape of the photovoltaic cell are matched with the shape of the regular hexagon braced frame, the edge of the photovoltaic cell
Multiple connection rings are equidistantly equipped with, one end of drag-line is connected by the connection ring, the other end and regular hexagon support frame of drag-line
Frame is affixed,
The regular pentagon battery module includes photovoltaic cell and the regular pentagon support frame that is made of hollow carbon fiber pipe
Frame, the shape of the photovoltaic cell are matched with the shape of the regular pentagon braced frame, the edge of the photovoltaic cell
Multiple connection rings are equidistantly equipped with, one end of drag-line is connected by the connection ring, the other end and regular pentagon support frame of drag-line
Frame is affixed.
Further, photovoltaic cell is multi-knot thin film gallium arsenide solar cell.
Further, hauling rope is aramid fiber rope.
The utility model has the advantages that disclosed by the invention: a kind of light-focusing type Wireless power transmission based on ENZ Meta Materials has following
The utility model has the advantages that
1, condenser involved in light-focusing type Wireless power transmission of the invention does not need to adjust, to solve existing
Problem is controlled brought by light-focusing type scheme；
2, Wireless power transmission of the invention is due on sunlight vertical irradiation to photovoltaic cell battle array, thus solves existing
There is sunlight oblique incidence problem present in light-focusing type scheme, is greatly improved the sunlight collection efficiency of system in this way, in turn
The utilization rate of photovoltaic cell is also improved, the whole efficiency of system finally can be improved；
3, Wireless power transmission of the invention is since by photovoltaic cell and transmitting antenna separate design, this is to a certain degree
On can be relieved the heat dissipation problem of system；
4, Wireless power transmission condenser of the invention and photovoltaic cell battle array are all made of modularized design, convenient for extensive
Production, so as to reduce manufacturing cost；
5, Wireless power transmission of the invention uses contactless conductive rotary joint, solves traditional contact
Mechanical wear existing for conductive rotary joint, and it is easy to appear the problems such as space is discharged.
Detailed description of the invention
Fig. 1 is the schematic diagram of light-focusing type Wireless power transmission disclosed by the invention；
Fig. 2 is the operation principle schematic diagram of light-focusing type Wireless power transmission disclosed by the invention；
Fig. 3 is the schematic diagram of spherical cavity；
Fig. 4 is the optical characteristics schematic diagram of ENZ meta-material thin film；
Fig. 5 is the operation principle schematic diagram of spherical cavity；
Fig. 6 is the splicing schematic diagram of hemispherical photovoltaic cell；
Fig. 7 is the schematic diagram of contactless conductive rotary joint；
Fig. 8 is hauling rope and condenser and transmitting antenna connection schematic diagram；
Fig. 9 is the regular hexagon module diagram of spherical cavity
Figure 10 spherical cavity regular hexagon module and regular pentagon module splice schematic diagram
Wherein:
1- spherical cavity 2- hemispherical photovoltaic cell battle array
The contactless conductive rotary joint 4- microwave transmitting antenna system of 3-
5- hauling rope 6- light transmission film
7- fixed disk 8- conducting stator
9- electric rotors 10- regular hexagon framework
11- drag-line
Specific embodiment:
Detailed description of specific embodiments of the present invention below.
As shown in Fig. 1~10, a kind of light-focusing type Wireless power transmission based on ENZ Meta Materials, including spherical cavity
1, hemispherical photovoltaic cell battle array 2, contactless conductive rotary joint 3, microwave transmitting antenna system 4, hauling rope 5 and control meter
Calculation machine,
Contactless conduction rotary joint 3 includes fixed disk 7, conducting stator 8 and electric rotors 9, one end of conducting stator 8
It is welded with the side of fixed disk 7, the middle part of electric rotors 9 is equipped with circular through hole, and electric rotors 9 and conducting stator 8 are socketed,
The top side and bottom side of hemispherical photovoltaic cell battle array 2 are respectively provided with a contactless conductive rotary joint 3, hemispherical light
Lie prostrate cell array 2 top side and bottom side it is affixed (welding) with electric rotors 9 respectively, the both ends of microwave transmitting antenna system 4 respectively with
The other end of conducting stator 8 welds, the another side of fixed disk 7 respectively with the equidistant affixed (weldering in one end of three hauling ropes 5
Connect),
The top side and bottom side of spherical cavity 1 are equipped with fixed ring, and the other end of three hauling ropes 5 is respectively with fixed ring etc.
Spacing is fixedly connected,
Control computer is connected with contactless conductive rotary joint 3, to control contactless conduction rotary joint 3 from
And realize 2 Direct to the sun of hemispherical photovoltaic cell battle array.
Further, spherical cavity 1 mutually spliced by 3230 regular hexagon modules and 12 regular pentagon modules and
Meet latitude and longitude division principle at, the splicing of 3230 regular hexagon modules and 12 regular pentagon modules, adjacent module it
Between be fixedly connected by three door shape connectors equidistantly laying,
Regular hexagon module includes regular hexagon framework 10 and light transmission film, the shape and regular hexagon frame of light transmission film 6
The shape of frame 10 is adapted, and the edge of light transmission film 6 is equidistantly equipped with multiple connection rings, one end of drag-line 11 and the connection ring
Affixed, the other end and regular hexagon framework 10 of drag-line 11 are affixed,
Regular pentagon module includes regular pentagon framework and light transmission film 6, the shape and regular pentagon framework of light transmission film 6
Shape be adapted, the edge of light transmission film 6 is equidistantly equipped with multiple connection rings, and one end of drag-line 11 and the connection ring are solid
It connects, the other end and regular pentagon framework of drag-line 11 are affixed.
Further, light transmission film 6 is ENZ meta-material thin film.
Further, hemispherical photovoltaic cell battle array 2 includes by 1615 regular hexagon battery modules and 6 regular pentagon electricity
Pond module is mutually spliced, and the splicing of 1615 regular hexagon battery modules and 6 regular pentagon battery modules meets longitude and latitude
Line division principle is fixedly connected between adjacent battery module by the three door shape connectors equidistantly laid,
Regular hexagon battery module includes photovoltaic cell and the regular hexagon braced frame that is made of hollow carbon fiber pipe, light
The shape of volt battery is matched with the shape of regular hexagon braced frame, and the edge of photovoltaic cell is equidistantly equipped with multiple connections
One end of ring, drag-line is connected by the connection ring, and the other end and regular hexagon braced frame of drag-line are affixed,
Regular pentagon battery module includes photovoltaic cell and the regular pentagon braced frame that is made of hollow carbon fiber pipe, light
The shape of volt battery is matched with the shape of regular pentagon braced frame, and the edge of photovoltaic cell is equidistantly equipped with multiple connections
One end of ring, drag-line is connected by the connection ring, and the other end and regular pentagon braced frame of drag-line are affixed.
Further, photovoltaic cell is multi-knot thin film gallium arsenide solar cell.
Further, hauling rope 5 is aramid fiber rope.
A kind of light-focusing type Wireless power transmission operation on orbit principle based on ENZ Meta Materials is as shown in Figure 2.Specific works
Principle be spherical cavity 1 remain stationary, in orbit when, pass through the sun being mounted in hemispherical photovoltaic cell battle array 2
Sensor obtains the azimuth information of the sun, and then sends that information to control computer, is calculated by controlling computer
The angle that the contactless conductive rotary joint 3 connecting with hemispherical photovoltaic cell battle array 2 need to rotate, and to contactless conductive rotation
Turn joint 3 and issue corresponding control instruction, to realize that photovoltaic cell battle array is directed at the sun in real time.Hemispherical photovoltaic cell battle array 2 produces
Raw direct current is transferred to microwave transmitting antenna system 4 by contactless conductive rotary joint 3, and then by being mounted on transmitting
The microwave device of antenna system converts electrical energy into microwave and is loaded into transmitting antenna, is then transmitted microwave energy by transmitting antenna
To terrestrial receiving antenna, the microwave energy being collected into is converted to electric energy by rectification circuit, is finally incorporated to electricity by terrestrial receiving antenna
Net.
ENZ meta-material thin film enables to the sunlight along any direction incidence, vertically projects (such as along its normal direction
Shown in Fig. 4).By ENZ meta-material thin film, incident sunlight be will be aggregated in the center of spherical cavity 1, in order to be radiated at
Sun light intensity on photovoltaic cell is maintained at a reasonable section, and photovoltaic cell is designed to hemispherical (as shown in Figure 5).From
Fig. 5 can be seen that, using ENZ meta-material thin film, the sunlight being irradiated on condenser will be refracted, and then vertical irradiation is to hemisphere
Shape photovoltaic cell battle array 2, to efficiently convert the solar into electric energy；
Microwave transmitting antenna system 4 includes oscillator, power division network, phase shifter, amplifier, antenna element and wave control system
System.
Embodiments of the present invention are elaborated above.But present invention is not limited to the embodiments described above,
Technical field those of ordinary skill within the scope of knowledge, can also do without departing from the purpose of the present invention
Various change out.
Claims (6)
1. a kind of light-focusing type Wireless power transmission based on ENZ Meta Materials, which is characterized in that including spherical cavity, hemisphere
Shape photovoltaic cell battle array, contactless conductive rotary joint, microwave transmitting antenna system, hauling rope and control computer,
The contactless conductive rotary joint includes fixed disk, conducting stator and electric rotors, one end of the conducting stator
It is welded with the side of the fixed disk, the middle part of the electric rotors is equipped with circular through hole, the electric rotors and the conduction
Stator socket,
The top side and bottom side of the hemispherical photovoltaic cell battle array are respectively provided with a contactless conductive rotary joint, the hemispherical
The top side and bottom side of photovoltaic cell battle array are affixed with electric rotors respectively, the both ends of microwave transmitting antenna system respectively with conducting stator
The other end welding, the another side of the fixed disk is equidistantly affixed with one end of three hauling ropes respectively,
The top side and bottom side of the spherical cavity are equipped with fixed ring, and the other end of three hauling ropes is respectively and between fixed ring etc.
Away from being fixedly connected,
Control computer is connected with contactless conductive rotary joint, to control contactless conductive rotary joint to realize
Hemispherical photovoltaic cell battle array Direct to the sun.
2. a kind of light-focusing type Wireless power transmission based on ENZ Meta Materials according to claim 1, which is characterized in that
The spherical cavity is mutually spliced by 3230 regular hexagon modules and 12 regular pentagon modules, 3230 positive six sides
The splicing of shape module and 12 regular pentagon modules meets latitude and longitude division principle, passes through between adjacent module and equidistantly lays
Three door shape connectors be fixedly connected,
The regular hexagon module includes regular hexagon framework and light transmission film, the shape of light transmission film and regular hexagon framework
Shape is adapted, and the edge of light transmission film is equidistantly equipped with multiple connection rings, and one end of drag-line and the connection ring are affixed, drag-line
The other end and regular hexagon framework it is affixed,
The regular pentagon module includes regular pentagon framework and light transmission film, the shape of light transmission film and regular pentagon framework
Shape is adapted, and the edge of light transmission film is equidistantly equipped with multiple connection rings, and one end of drag-line and the connection ring are affixed, drag-line
The other end and regular pentagon framework it is affixed.
3. a kind of light-focusing type Wireless power transmission based on ENZ Meta Materials according to claim 2, which is characterized in that
Light transmission film is ENZ meta-material thin film.
4. a kind of light-focusing type Wireless power transmission based on ENZ Meta Materials according to claim 1, which is characterized in that
The hemispherical photovoltaic cell battle array includes mutually being spliced by 1615 regular hexagon battery modules and 6 regular pentagon battery modules
It forms, the splicing of 1615 regular hexagon battery modules and 6 regular pentagon battery modules meets latitude and longitude division principle, adjacent
Battery module between be fixedly connected by three door shape connectors equidistantly laying,
The regular hexagon battery module includes photovoltaic cell and the regular hexagon braced frame that is made of hollow carbon fiber pipe, institute
The shape for stating photovoltaic cell is matched with the shape of the regular hexagon braced frame, and the edge of the photovoltaic cell is equidistant
Equipped with multiple connection rings, one end of drag-line is connected by the connection ring, and the other end and regular hexagon braced frame of drag-line are affixed,
The regular pentagon battery module includes photovoltaic cell and the regular pentagon braced frame that is made of hollow carbon fiber pipe, institute
The shape for stating photovoltaic cell is matched with the shape of the regular pentagon braced frame, and the edge of the photovoltaic cell is equidistant
Equipped with multiple connection rings, one end of drag-line is connected by the connection ring, and the other end and regular pentagon braced frame of drag-line are affixed.
5. a kind of light-focusing type Wireless power transmission based on ENZ Meta Materials according to claim 4, which is characterized in that
Photovoltaic cell is multi-knot thin film gallium arsenide solar cell.
6. a kind of light-focusing type Wireless power transmission based on ENZ Meta Materials according to claim 1, which is characterized in that
Hauling rope is aramid fiber rope.
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| CN201710160788.6A CN106849860B (en) | 2017-03-17 | 2017-03-17 | A kind of light-focusing type Wireless power transmission based on ENZ Meta Materials |
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| CN106849860B true CN106849860B (en) | 2018-12-11 |
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| JP3613142B2 (en) * | 2000-04-24 | 2005-01-26 | 三菱電機株式会社 | Space solar power generation method, system thereof, power generation satellite, control satellite, and power base |
| US7077361B1 (en) * | 2005-01-31 | 2006-07-18 | Mario Rabinowitz | Micro-optics concentrator for solar power satellites |
| US9276148B2 (en) * | 2011-06-20 | 2016-03-01 | The United States Of America, As Represented By The Secretary Of The Navy | Thermally efficient power conversion modules for space solar power |
| CN104158471B (en) * | 2014-08-13 | 2016-07-06 | 中国空间技术研究院 | A kind of non-concentrating Wireless power transmission |
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