CN106817068B - A kind of Wireless power transmission - Google Patents
A kind of Wireless power transmission Download PDFInfo
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- CN106817068B CN106817068B CN201710007528.5A CN201710007528A CN106817068B CN 106817068 B CN106817068 B CN 106817068B CN 201710007528 A CN201710007528 A CN 201710007528A CN 106817068 B CN106817068 B CN 106817068B
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- condenser
- transmitting antenna
- microwave transmitting
- conductive
- wireless power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Abstract
The present invention provides a kind of Wireless power transmissions, including condenser, solar array, microwave transmitting antenna, hauling rope and transmission cable, its topology of the condenser is connected by upper, middle, and lower part ring-type spherical surface to be constituted, wherein the radius of curvature of intermediate spherical surface is greater than the radius of curvature of upper and lower both sides spherical surface；Solar array is coupled by sliding pair at the every portion centers ring position in the upper, middle and lower of condenser, and rotates around microwave transmitting antenna；The microwave transmitting antenna is connected by 6 hauling ropes with the outline border at the upper and lower edge of condenser；Solar array is electrically connected with microwave transmitting antenna by conductive structure and transmission cable.The present invention improves the utilization rate of condenser, further improves the function matter ratio of Wireless power transmission, reduces the design difficulty of cooling system.
Description
Technical field
The invention belongs to Wireless power transmission technical fields, provide a kind of improved OMEGA-SSPS space solar electricity
It stands scheme.
Background technique
Due to the increasingly raising that the mankind require living environment, countries in the world are all increasing the research use to clean energy resource
Dynamics.Wireless power transmission (SSPS, Space solarpower station) is attracted more and more with its unique advantage
Domestic and international expert research.Itd is proposed now with many SSPS scheme, but Man Jinsi scheme proposed in recent years with it is secondary
Symmetrical optically focused scheme is because of the feature and its realizability of its modularization and high concentration ratio and by everybody extensive concern.
Wireless power transmission research department, Xian Electronics Science and Technology University proposes a kind of OMEGA-SSPS (Orb-shape
Membrane Energy Gathering Array, OMEGA) scheme, the program be by condenser, cell array, conducting system and
Transmitting antenna composition.Man Jinsi scheme is that modular collection forms, but because its condenser is goblet shape, therefore modules are one
It time domestic demand will be adjusted constantly, and adjustment is complicated, and optically focused optical path is complicated and is not easily controlled.Two sub-symmetry optically focused schemes are then
It is that whole mirror surface needs to rotate, this large space rotational structure reduces integrally-built reliability.Condenser in new departure
For spherical shape, turns round bulk properties and Unidirectional transparent film or guarantee it in geo-stationary orbit operation day mirror surface opening method of adjustment
When, it does not need to rotate adjustment on a large scale.In addition the transmitting antenna and cell array of Man Jinsi scheme and two sub-symmetry optically focused schemes
It is integrated into one piece, using sandwich or trapezium structure, to cooling requirements height.In new departure, the separation of cell array and antenna array
It will be greatly reduced heat problem, be conducive to improve the transfer efficiency of battery and the emission effciency of antenna.
OMEGA-SSPS condenser carries out optically focused using spherical surface, and optically focused portion collection energy will gather after light enters in ball
Collect in intermediate cell array.It, which turns round bulk properties and Unidirectional transparent film or opens method of adjustment to day mirror surface, guarantees whole knot
Structure in orbit when do not need to adjust.If but there are also certain defects using entire sphere optically focused: if lower edges utilization rate is low,
Heat problem concentrates in intermediate cell array.It is that edge utilization rate is low that initial scheme, which cuts away two-part reason up and down,.Work as light
When line equatorial plane direction is irradiated to principal reflection body, it can be considered that symmetrical each point light intensity is equal everywhere on the axis of Yanzhong, thus phase
Deng arc length, it is more to project the energy that the big place of circle slope absolute value receives.Due to the part at axis edge, projection
The absolute value of the slope of round camber line is small, so more arriving, lower edges utilization rate is lower, and function matter ratio is lower, is unfavorable for reducing transmitting
Cost.And in OMEGA-SSPS scheme, all energy received are all concentrated in intermediate cell array, because of present photovoltaic
The limitation of battery, photovoltaic conversion efficiency is 40% or so, and the energy a part that do not convert is reflected, and another part is converted to thermal energy
It concentrates near battery, this will affect structure and spherical frame structure in the ball near cell array, so that condenser overall structure
Uneven heating is even, reduces reliability of structure, and increases control difficulty.
Summary of the invention
It is an object of the invention to overcome the shortcomings of in above-mentioned existing OMEGA-SSPS scheme, for top and the bottom utilization rate
Low and heat concentrates both of these problems to be improved, and a kind of Wireless power transmission is provided, so that the utilization of concentrator surface
Rate increases, and improves function matter ratio, to reduce construction cost.
The technical scheme is that a kind of Wireless power transmission, including condenser, solar array, microwave hair
Antenna, hauling rope and transmission cable are penetrated, the condenser is connected by upper, middle, and lower part ring-type spherical surface to be constituted, wherein intermediate
The radius of curvature of spherical surface is greater than the radius of curvature of upper and lower both sides spherical surface；Solar array is in the every portion in the upper, middle and lower of condenser
It is coupled by sliding pair in the equatorial positions divided, and rotated around microwave transmitting antenna；The microwave transmitting antenna is logical
6 hauling ropes are crossed to be connected with the outline border at the upper and lower edge of condenser；Solar array and microwave transmitting antenna pass through conductive knot
Structure and transmission cable electrical connection.
Upper, middle and lower each section of above-mentioned condenser is by the Unidirectional transparent film of several groups hexagon and corresponding six
The braced frame of side shape forms；The braced frame is coiling support arm, and Unidirectional transparent film is by being set to the short of film edge
Drag-line is suspended in the braced frame.
The solar battery of above-mentioned solar array is three-junction gallium arsenide battery.
The solar battery of above-mentioned solar array is three groups of cascade cell arrays, and each group solar battery passes through respectively
Sliding pair is correspondingly connected at the center ring position of condenser upper, middle and lower each section, and around microwave transmitting antenna central axis
Rotation.
Above-mentioned microwave transmitting antenna is active phase array antenna.
Above-mentioned transmission cable uses low temperature superconducting cable.
Above-mentioned conductive structure includes conductive inner cylinder, conductive outer cylinder and conductive rolling ring；The conduction inner cylinder and Microwave emission
Antenna is fixedly linked, and conductive outer cylinder is connected on microwave transmitting antenna in the form of revolute pair and as solar array turns
It is dynamic；Conductive outer tube inner wall and conductive inner tank theca are equipped with set on its circumferential multiple groove, conductive outer tube inner wall
Set groove corresponds and opposite on groove and conductive inner tank theca, and is equipped with conductive rolling between the opposite groove of every two
Ring.
The antenna array of above-mentioned microwave transmitting antenna is spliced into entire antenna array using the assembling of rectangular microstrip antenna unit.
The outline border at upper and lower edge of above-mentioned condenser is connected with one end of hauling rope, the other end and conduction of hauling rope
Inner cylinder connection.
Beneficial effects of the present invention: 1, the light collection efficiency of program condenser is high, meanwhile, which is vertical equator
Axis Axisymmetric Revolution body, light collect fluctuation it is small；
2, the condenser does not need to rotate；
3, the length of transmission cable is greatly lowered than solar sail scheme；
4, the uniformity of battery in photovoltaic cell battle array is greatly improved.Using the available angle of incidence of light of geometric knowledge and gather
Burnt relationship on centerline is
A in formula is the angle of vertical incidence light and spherical surface tangent line, and h is distance of the battery away from condenser bottom, by
The height of this available each battery.The incidence angle of new departure battery light are as follows:
a1=25.65, a2=34.34 (2)
Calculate two kinds of position cells altitude range are as follows: the battery working range of interlude be 0.4453~0.5, edge
The battery working range of section is 0.3945~0.5.Optical power is non-uniformly distributed in 0~R before, the battery post known to formula (1)
The optically focused in face is uneven, and optical power table is concentrated mainly on above battery, and it is lower and decline faster more arrive battery bottom optical power.It is existing
Range is being reduced, is only taking the spotlight effect of top, this will greatly improve the uniformity of battery.The temperature of battery can lead to
The width of increase battery cylinder is crossed to reduce.
5, the parameter of comparison OMEGA-SSPS spherical surface condenser system and new departure condenser system is (with the primary reflection surface of 1540m
Radius, for spring and autumn divides day to design) as shown in table 1.By table it can be seen that the program has very big function matter ratio compared with original scheme
It is promoted, condenser function matter ratio increases 11.47%.The program not only increases the bore face of condenser, but also reduces total face
Product, this substantially reduces the following cost emitted.
The parameter comparison of table 1 OMEGA-SSPS spherical surface condenser system and new departure condenser system
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the working principle diagram of spherical surface optically focused of the invention；
Fig. 3 is the schematic diagram of the primary reflection surface configuration generation figure of condenser；
Fig. 4 is the chondritic topology schematic diagram in Fig. 1；
Fig. 5 is each hexagonal module schematic diagram of condenser in Fig. 4；
Fig. 6 is the conductive structure schematic diagram in Fig. 1；
Fig. 7 is the microwave transmitting antenna modularized design schematic diagram in Fig. 1；
Fig. 8 is microwave transmitting antenna and condenser attachment structure schematic diagram in Fig. 1.
Description of symbols: 101- condenser, 102- solar array, 103- microwave transmitting antenna, 104- transmission electricity
Cable, 105- conductive structure, 106- hauling rope, 501- braced frame, 502- Unidirectional transparent film, 601- conduction inner cylinder, 602- are led
Electric outer cylinder, 603- groove, 604- conduction rolling ring, 701- outline border.
Specific embodiment
Referring to Fig.1, the present invention provides a kind of Wireless power transmission, including condenser 101, solar array 102,
Microwave transmitting antenna 103, hauling rope 106 and transmission cable 104, the condenser 101 are to guarantee light collection rate and optically focused effect
Rate, structure is connected by upper, middle, and lower part ring-type spherical surface to be constituted, wherein the radius of curvature of intermediate spherical surface is greater than upper and lower both sides
The radius of curvature of spherical surface, to increase function matter ratio.On geostationary orbit GEO, solar array 102 is in condenser 101
It is coupled by sliding pair (i.e. at equatorial positions) at the every portion centers ring position in upper, middle and lower, and around Microwave emission day
Line 103 rotates；The outline border 701 that the microwave transmitting antenna 103 passes through 6 hauling ropes 106 and the upper and lower edge of condenser 101
It is connected, to keep antenna array to be directed toward the earth.Solar array 102 and microwave transmitting antenna 103 by conductive structure 105 with
And transmission cable 104 is electrically connected.Condenser 101 converges to sunlight on solar array 102, solar array 102
It carries out photoelectric conversion and generates direct current, direct current is transferred to conductive structure 105 by transmission cable 104, is then transferred to again
Microwave transmitting antenna 103 is gone out Microwave emission by microwave transmitting antenna 103.
Upper, middle and lower each section of the condenser 101 is by the Unidirectional transparent film 502 of several groups hexagon and opposite
The braced frame 501 for the hexagon answered forms；The braced frame 501 is coiling support arm, and Unidirectional transparent film 502 passes through
Short drag-line set on film edge is suspended in the braced frame 501.Referring to Fig. 2, spherical surface concentrating light principles, light is incident from the outside
In the range of eventually falling in 0~R/2.Referring to Fig. 3, it is that radius draws arc extremely that OMEGA-SSPS model, which is by center of circle R of O point,
Place, then around center, y-axis rotates a circle to obtain the primary reflection surface configuration of condenser 101.Improved new departure is first with central point O
Drawing arc to y-coordinate for the center of circle isPlace, then withFor center of circle O2, O2A is radius, draws arc to y-coordinate and isPlace, obtains new circular arc, then rotates a circle to obtain new primary reflection surface configuration further around center y-axis.Referring to Fig. 4, gather
Light device 101 is spliced by several hexagons, and the topological structure of single spherical surface is as shown in the figure.Referring to Fig. 5, each of condenser
Hexagon is made of coiling support arm and Unidirectional transparent film.
The solar battery of the solar array 102 is three-junction gallium arsenide battery.
The solar battery of the solar array 102 is three groups of cascade cell arrays, each group solar battery difference
It is correspondingly connected to by sliding pair at the center ring position of 101 upper, middle and lower each section of condenser, and around Microwave emission day
103 center axis rotation of line.
The microwave transmitting antenna 103 is active phase array antenna, including oscillator, phase shifter and amplifier；It can incite somebody to action
Direct current is converted to microwave, and by power distribution to antenna array, antenna array goes out Microwave emission.
The transmission cable 104 uses low temperature superconducting cable.
Referring to Fig. 6, the conductive structure 105 includes conductive inner cylinder 601, conductive outer cylinder 602 and conductive rolling ring 604；Institute
It states conductive inner cylinder 601 to be fixedly linked with microwave transmitting antenna 103, conductive outer cylinder 602 is connected to microwave hair in the form of revolute pair
It penetrates on antenna 103 and as solar array 102 rotates；Conductive 602 inner wall of outer cylinder and conductive 601 outer wall of inner cylinder are equipped with ring
The multiple grooves 603 to position conductive rolling ring 604 circumferential around it, on conductive 602 inner wall of outer cylinder set groove 603 with lead
Set groove 603 corresponds and opposite on electric 601 outer wall of inner cylinder, and is equipped with conduction between the opposite groove 603 of every two
Rolling ring 604, conductive rolling ring 604 roll between groove 603.The transmission cable 104 preferably uses low temperature superconducting cable.
Referring to Fig. 7, the antenna array of the microwave transmitting antenna 103 is spliced into whole using the assembling of rectangular microstrip antenna unit
A antenna array, using modularized design, it is preferable to use the assembling of hexagonal antenna unit is spliced into entire antenna array.
Referring to Fig. 8, the outline border 701 at the upper and lower edge of the condenser 101 is connected with one end of hauling rope 106, draws
The other end of rope 106 is connect with conductive inner cylinder 601.
Working principle of the present invention is as follows:
On geostationary orbit GEO, condenser 101 converges to sunlight on solar array 102, solar-electricity
Pond battle array 102 is rotated on two-dimensional surface with the variation of every Time of Day to track the sunlight of spheric reflection, solar-electricity
Pond battle array 102 carries out photoelectric conversion and generates direct current, after direct current is transmitted to conductive structure 105 by transmission cable 104, direct current
Electricity is finally transferred to microwave transmitting antenna 103, through oscillator, phase shifter and the amplifier on microwave transmitting antenna 103 by direct current
Electricity is converted to microwave, and by power distribution to antenna array, then antenna array is by Microwave emission to ground.Microwave transmitting antenna
103 are connected by 6 hauling ropes 106 with condenser 101, to keep antenna array to be directed toward the earth.
In conclusion spherical optically focused Wireless power transmission of the invention has, light collection efficiency is high, antenna and condenser
Connection structure quality it is low, the short feature of transmission cable, and to a certain extent reduce cooling system design difficulty, improve electricity
The optical uniformity of pool surface.
There is no the part described in detail to belong to the well known conventional means of the industry in present embodiment, does not chat one by one here
It states.The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all and sheet
Invent it is the same or similar design all belong to the scope of protection of the present invention within.
Claims (6)
1. a kind of Wireless power transmission, including condenser (101), solar array (102), microwave transmitting antenna (103),
Hauling rope (106) and transmission cable (104), which is characterized in that the condenser (101) is by upper, middle, and lower part ring-type ball
Face connects composition, wherein the radius of curvature of intermediate spherical surface is greater than the radius of curvature of upper and lower both sides spherical surface；Solar array
(102) coupled by sliding pair in the equatorial positions of the every part in upper, middle and lower of condenser (101), and around microwave
Transmitting antenna (103) rotation；The microwave transmitting antenna (103) is upper and lower by 6 hauling ropes (106) and condenser (101)
The outline border (701) at edge is connected；Solar array (102) and microwave transmitting antenna (103) by conductive structure (105) and
Transmission cable (104) electrical connection；The conductive structure (105) includes conductive inner cylinder (601), conductive outer cylinder (602) and conduction
Rolling ring (604)；The conduction inner cylinder (601) is fixedly linked with microwave transmitting antenna (103), and conductive outer cylinder (602) is with revolute pair
Form be connected on microwave transmitting antenna (103) and with solar array (102) rotate；Conductive outer cylinder (602) inner wall
It is equipped with conductive inner cylinder (601) outer wall set on its circumferential multiple groove (603), conductive outer cylinder (602) inner wall
Set groove (603) corresponds and opposite on groove (603) and conductive inner cylinder (601) outer wall, and opposite recessed of every two
Conductive rolling ring (604) is equipped between slot (603).
2. a kind of Wireless power transmission according to claim 1, which is characterized in that the condenser (101) it is upper,
In, lower each section is by the Unidirectional transparent film (502) of several groups hexagon and the braced frame (501) of corresponding hexagon
Composition；The braced frame (501) is coiling support arm, and Unidirectional transparent film (502) passes through the short drag-line set on film edge
It is suspended on the braced frame (501).
3. a kind of Wireless power transmission according to claim 1, which is characterized in that the solar array (102)
Solar battery be three-junction gallium arsenide battery.
4. a kind of Wireless power transmission according to claim 1, which is characterized in that the microwave transmitting antenna (103)
For active phase array antenna.
5. Wireless power transmission according to claim 1, which is characterized in that the transmission cable (104) uses low temperature
Hyperconductive cable.
6. a kind of Wireless power transmission according to claim 1, which is characterized in that the microwave transmitting antenna (103)
Antenna array using rectangular microstrip antenna unit assembling be spliced into entire antenna array.
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| CN201710007528.5A CN106817068B (en) | 2017-01-05 | 2017-01-05 | A kind of Wireless power transmission |
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| CN109566194A (en) * | 2019-01-23 | 2019-04-05 | 洪光益 | A kind of complementary organic farm system of agriculture light |
| CN111427384B (en) * | 2020-04-03 | 2022-03-22 | 西北大学 | Solar power station and method capable of expanding line focusing space |
| CN114928306B (en) * | 2022-04-24 | 2023-04-25 | 西安电子科技大学 | Annular truss type space solar power station based on spherical primary reflection area |
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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 |
| CN1926719A (en) * | 2003-12-04 | 2007-03-07 | 约翰·雷蒙德·Jr.·埃西格 | Modular inflatable multifunction field-deployable apparatus and methods of manufacture |
| 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 |
| CN105591593B (en) * | 2016-03-07 | 2017-10-17 | 西安电子科技大学 | Spherical optically focused Wireless power transmission |
| CN106218849A (en) * | 2016-04-02 | 2016-12-14 | 吕怀民 | Aerial wind energy power station formula aircraft and aerial fixing aircraft device |
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