CN110266113A - Wireless power distribution system and control method between a kind of spacecraft - Google Patents
Wireless power distribution system and control method between a kind of spacecraft Download PDFInfo
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- CN110266113A CN110266113A CN201910458265.9A CN201910458265A CN110266113A CN 110266113 A CN110266113 A CN 110266113A CN 201910458265 A CN201910458265 A CN 201910458265A CN 110266113 A CN110266113 A CN 110266113A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to Wireless power distribution systems between a kind of spacecraft, it is improved based on traditional LC C topological structure, its transmitting terminal LCC compensation circuit includes primary side compensation inductance, the first series compensation capacitance of primary side and primary side Shunt compensation capacitor, receiving end LCC compensation circuit includes the first series compensation capacitance of secondary side, it is secondary to compensate inductance in Shunt compensation capacitor and while secondary, it further include compensating the concatenated first switch of inductance with primary side, the second series compensation capacitance of second switch and primary side being serially connected, with secondary the second series compensation capacitance when compensating the concatenated third switch of inductance and the 4th switch and pair that are serially connected, and the series arm and first switch of the second series compensation capacitance of second switch and primary side, primary side compensates inductance and the series arm of the first series compensation capacitance of primary side is in parallel, the second series compensation capacitance of 4th switch and secondary side Series arm is switched with third, the secondary series arm of the first series compensation capacitance when compensating inductance and pair is in parallel, takes into account transmission range and energy transmission efficiency.
Description
Technical field
The present invention relates to wireless power distribution technical fields, and in particular to Wireless power distribution system and controlling party between a kind of spacecraft
Method.
Background technique
Development with China's Aerospace Technology and the exploration to outer space tera incognita are increasingly deepened, various spacecrafts
Function gradual perfection, also just becoming applied to the Wireless power distribution system between spacecraft increasingly complicate and diversification, in addition to pass
Except wired power supply mode of system, the mode of wireless power distribution wireless energy transmission technology in other words supplies between being increasingly becoming spacecraft
One of electric mode, wireless power distribution technology can provide a kind of novel energy confession outside high efficiency energy storage battery technology for spacecraft
To mode, effective solution method is provided to improve the cruising ability of spacecraft.
Wireless power distribution mainly utilizes wireless charging technology, is to convert electrical energy into electromagnetic wave using a kind of special equipment
Or the energy of other forms can still charge so as to realize in the non-contact case for corresponding electrical equipment.It is existing
Have technology to generally include two major classes wireless charging technical solution: 1) induction wireless charging refers to the friendship with certain frequency
Galvanic electricity is passed through primary coil, generate certain electric current in secondary coil using electromagnetic induction principle, realizes electric energy with this
Wireless transmission；2) electromagnetic induction principle of magnetic resonance type wireless charging, principle and induction wireless charging is substantially similar,
Only it requires transmitting terminal consistent with the frequency of the power signal of receiving end, that is, transmitting terminal and receiving end is allowed to work in same frequency
Rate reaches resonance point, and the wireless transmission of electric energy is realized by electromagnetic coupling principle.Two kinds of wireless charging technical solutions are got rid of
The puzzlement of traditional wire charged form is so that charging operations are convenient and efficient, but the two is also each defective.Magnetic resonance wireless charging
SS type fundamental resonance collocation structure is generallyd use in power technology, between transmitting coil and receiving coil, be adapted to transmission range compared with
Far, it is not suitable for the close situation of transmission range.In magnetic inductive wireless charging technology, adopted between transmitting coil and receiving coil
With LCC type resonance compensation structure, the closer situation of transmission range is adapted to, this results in the two that can only be specifically applicable for meeting
Between the spacecraft of specific transmission distance, and transmission range and energy transmission efficiency cannot be taken into account.And for some spacecrafts,
May carry out change rail according to space mission situation, or exist close to or far from dynamic change spacing spacecraft between produce
The case where raw demand for carrying out wireless charging, said two devices technical solution is just obvious to be no longer applicable in.
Summary of the invention
Present invention offer aiming at the problem that cannot take into account transmission range and energy transmission efficiency in existing wireless charging technology
Wireless power distribution system between a kind of spacecraft, the system dexterously improve in prior art basis, are additionally arranged switching group
Conjunction and compensating electric capacity, are successfully combined LCC collocation structure and SS collocation structure, and only pass through the control of switch combination
Thus transmission range and energy transmission efficiency have been taken into account in the switching that can be realized as two kinds of compensating forms, simple and reliable for structure
And operation is convenient, moreover it is possible to practical during the wireless power distribution between the spacecraft of dynamic change spacing.The present invention
Additionally provide a kind of control method of Wireless power distribution system between spacecraft.
Technical scheme is as follows:
Wireless power distribution system between a kind of spacecraft, including sequentially connected transmitting terminal power supply, high-frequency inverter circuit, transmitting terminal
LCC compensation circuit, transmitting coil, receiving coil, receiving end LCC compensation circuit, rectification circuit and receiving end load, the transmitting
Coil and the receiving coil are contactless connection, and the transmitting terminal LCC compensation circuit includes the original mutually coupled in series and parallel
Side compensates inductance, the first series compensation capacitance of primary side and primary side Shunt compensation capacitor, and the receiving end LCC compensation circuit includes phase
Secondary Shunt compensation capacitor and the secondary side in the first series compensation capacitance, pair mutually coupled in series and parallel compensates inductance, and system further includes
With the concatenated first switch of primary side compensation inductance, the second series compensation capacitance of second switch and primary side being serially connected and secondary side
The concatenated third switch of compensation inductance and the second series compensation capacitance of the 4th switch and secondary side being serially connected, and second switch
Series arm and first switch, primary side compensation inductance and the first series compensation of primary side formed with the second series compensation capacitance of primary side
The series arm that capacitor is formed is parallel with one another, the series arm and third that the 4th switch and secondary the second series compensation capacitance of side are formed
Switch, the secondary series arm that the first series compensation capacitance is formed when compensating inductance and pair are parallel with one another.
Preferably, Wireless power distribution system between the spacecraft further includes monitoring and the various state information parameters of control system
Master controller, four switches are connected with the master controller, and the master controller manually or automatically sends instruction control four
The closure and disconnection of a switch.
Preferably, Wireless power distribution system between the spacecraft further includes monitoring device at a distance from being connected with master controller, institute
State the actual range between monitoring device two spacecrafts of monitoring and by information data transmission to master controller, master controller root
According to the information data apart from monitoring device automatically send instruction control four switch closures and disconnection, actual range be greater than away from
Control first switch, third switch disconnect second switch, the 4th simultaneously and close the switch when from threshold value, are less than distance in actual range
First switch is controlled when threshold value, third closes the switch while second switch, the 4th switch disconnect.
Preferably, the transmitting terminal power supply is directly by spacecraft busbar voltage for direct current.
Preferably, transmitting terminal and receiving end are carried out wireless communication by contactless Zigbee wireless communication unit to pass
Defeated working signal or status information.
A kind of control method according to Wireless power distribution system between above-mentioned spacecraft, the method monitor aerospace first
The power supply status of interior spacecraft itself when needing electric energy transmission between several spacecrafts, then monitors the distance between spacecraft
Relationship controls Wireless power distribution system two spacecrafts for meeting distance relation, is greater than distance threshold in distance relation
When, control first switch, third switch disconnect second switch, the 4th simultaneously and close the switch, and circuit compensation topology is SS tandem type,
Realize magnetic resonance type radio energy-transmitting；When distance relation is less than distance threshold, control first switch, third are closed the switch while the
Two switches, the 4th switch disconnect, and circuit compensation topology is LCC type, realize magnetic inductive radio energy-transmitting；It is opened by control first
Pass, second switch, third switch, the 4th switch open and close state so that control system working forms switching to meet
The demand of wireless power transmission under different spacing.
Preferably, the master of monitoring and the various state information parameters of control system is also arranged in the control method in systems
Controller manually or automatically sends the closure and disconnection of instruction four switches of control using the master controller.
Preferably, the control method is also set up monitoring device at a distance from being connected with master controller, is supervised using the distance
Survey the actual range between two spacecraft of device monitoring and by information data transmission to master controller, recycle master controller according to
Information data apart from monitoring device sends the closure and disconnection of instruction four switches of control automatically, is greater than distance in actual range
Control first switch, third switch disconnect second switch, the 4th simultaneously and close the switch when threshold value, and system enters SS compensation network and opens up
Flutter structure type work with realize remote-wireless electric energy transmit, actual range be less than distance threshold when control first switch,
Third closes the switch while second switch, the 4th switch disconnect, and system enters the work of LCC compensation network topographical form with reality
Existing near radio electric energy transmission.
Preferably, during radio transmission, using spacecraft busbar voltage to the transmitting terminal of Wireless power distribution system
Power supply carries out direct current supply.
Preferably, during radio transmission, the transmitting terminal of Wireless power distribution system and receiving end pass through contactless
Zigbee wireless communication unit carry out wireless communication to transmit working signal or status information.
Technical effect of the invention is as follows:
The present invention relates to Wireless power distribution systems between a kind of spacecraft, suitable for the wireless power distribution scene between spacecraft, especially
It is suitable for dexterously being changed during the wireless power distribution between the spacecraft of dynamic change spacing in prior art basis
Into being additionally arranged first switch, second switch, third switch, the 4th switch these switch combinations and the second series compensation of primary side
The second series compensation capacitance of capacitor and secondary side, so that LCC collocation structure and SS collocation structure have carried out perfect combination, the system knot
Structure is compact, has both been adapted to resonance coupling, while can be used for magnetic induction coupling, and only passes through the control energy of switch combination
Enough realize the switching of two kinds of compensating forms, simple and reliable for structure and operation is convenient, can both apply the nothing between remote spacecraft
Line distribution (being that can also correspond to the middle and long distance under actual conditions between spacecraft for short distance at a distance), again
It can be applied to wireless power distribution between short distance spacecraft (being closely alternatively referred to as short distance), solve existing wireless charging technology
In the problem of cannot taking into account transmission range and energy transmission efficiency, suitability is strong, greatly improves system work quality on the whole
With working efficiency, and the wireless power distribution economic cost under space environment is effectively reduced.
It is for nothing between above-mentioned spacecraft the invention further relates to a kind of control method of Wireless power distribution system between spacecraft
The control method of line distribution system, suitable for the wireless power distribution scene between spacecraft, first in monitoring aerospace spacecraft from
The power supply status of body, when needed between several spacecrafts electric energy transmission when, monitor spacecraft between distance relation, to meet away from
Controlled from Wireless power distribution system between two spacecrafts of relationship, by control first switch, second switch, third switch,
The switching of the 4th open and close state switched and then control system working forms is passed with meeting radio energy under different spacing
Defeated demand, so that LCC collocation structure and SS collocation structure have carried out perfect combination and free switching, the present invention is by changing boat
Cutting for two kinds of wireless energy transfer modes that resonance coupling is coupled with magnetic induction may be implemented in the control mode of its device wireless power distribution
It changes, can not only apply the wireless power distribution between middle and long distance spacecraft, but also can be applied to wireless power distribution between short distance spacecraft, it is simultaneous
Transmission range and energy transmission efficiency have been cared for, has greatly improved system work quality and working efficiency on the whole.
Detailed description of the invention
Fig. 1: the first preferred structure schematic diagram of Wireless power distribution system between a kind of spacecraft of the present invention.
Fig. 2: second of preferred structure schematic diagram of Wireless power distribution system between a kind of spacecraft of the present invention.
Fig. 3: the third preferred structure schematic diagram of Wireless power distribution system between a kind of spacecraft of the present invention.
Fig. 4: the 4th kind of preferred structure schematic diagram of Wireless power distribution system between a kind of spacecraft of the present invention.
Fig. 5: the preferred flow charts of the control method of Wireless power distribution system between a kind of spacecraft of the present invention.
Appended drawing reference lists as follows:
1-transmitting terminal power supply；2-high-frequency inverter circuits；3-transmitting terminal LCC compensation circuits；4-transmitting coils；5-connect
Take-up circle；6-receiving end LCC compensation circuits；7-rectification circuits；The load of 8-receiving ends；9-master controllers；10-distance prisons
Survey device；11-Zigbee wireless communication units；
Lf1- primary side compensates inductance；C1The first series compensation capacitance of-primary side；Cf1- primary side Shunt compensation capacitor；Lf2—
Secondary side compensates inductance；C2The first series compensation capacitance of-secondary side；Cf2- secondary side Shunt compensation capacitor；S1- first switch；S2- the
Two switches；C3The second series compensation capacitance of-primary side；S3- third switch；S4- the four switch；C4The second series compensation of-secondary side
Capacitor.
Specific embodiment
The present invention relates to Wireless power distribution systems between a kind of spacecraft, including sequentially connected transmitting terminal power supply, high-frequency inversion
Circuit, transmitting terminal LCC compensation circuit, transmitting coil, receiving coil, receiving end LCC compensation circuit, rectification circuit and receiving end are negative
Load, the transmitting coil and the receiving coil are contactless connection, and the transmitting terminal LCC compensation circuit includes mutually going here and there simultaneously
Primary side compensation inductance, the first series compensation capacitance of primary side and the primary side Shunt compensation capacitor of connection coupling, the receiving end LCC compensation
Circuit includes the secondary Shunt compensation capacitor in the first series compensation capacitance, pair and secondary side compensation inductance mutually coupled in series and parallel,
The system further includes the second series compensation of second switch and primary side for compensating the concatenated first switch of inductance with primary side, being serially connected
Capacitor, when the 4th for compensating the concatenated third switch of inductance and being serially connected switchs and is secondary, the second series compensation is electric with pair
Hold, and the series arm and first switch, primary side compensation inductance and original that second switch and the second series compensation capacitance of primary side are formed
The series arm that the first series compensation capacitance of side is formed is parallel with one another, and the 4th switch is formed with secondary the second series compensation capacitance of side
Series arm is switched with third, the secondary series arm that the first series compensation capacitance is formed when compensating inductance and pair is parallel with one another,
Make LCC collocation structure and SS collocation structure carry out perfect combination using component is added, solves existing wireless charging technology
In the problem of cannot taking into account transmission range and energy transmission efficiency, suitability is strong, effectively improves system working efficiency.
Further the present invention is described in detail with reference to the accompanying drawing.
As shown in Fig. 1, the first preferred structure of Wireless power distribution system shows between a kind of spacecraft proposed by the present invention
It is intended to, which includes sequentially connected transmitting terminal power supply 1, high-frequency inverter circuit 2, transmitting terminal LCC compensation circuit 3, emission lines
Enclose 4 (i.e. primary side inductance coil L1), (the i.e. secondary inductance coil L of receiving coil 52), receiving end LCC compensation circuit 6, rectification circuit 7
With receiving end load 8, the transmitting coil 4 is primary side inductance coil in contactless connection namely figure with the receiving coil 5
L1With secondary inductance coil L2For induction connection, generating mutual inductance and self-induction therebetween, (M is i.e. in figure to transmit energy
For mutual inductance), the transmitting terminal LCC compensation circuit 3 includes the primary side compensation inductance L mutually coupled in series and parallelf1, primary side first connect
Compensating electric capacity C1With primary side Shunt compensation capacitor Cf1, the receiving end LCC compensation circuit 6 includes the secondary side mutually coupled in series and parallel
First series compensation capacitance C2, pair side Shunt compensation capacitor Cf2Inductance L is compensated with secondary sidef2, furthermore the system further include and primary side
Compensate inductance Lf1Concatenated first switch S1, the second switch S that is serially connected2With the second series compensation capacitance of primary side C3And secondary side
Compensate inductance Lf2Concatenated third switch S3And the 4th switch S being serially connected4With secondary the second series compensation capacitance of side C4, and
Second switch S2With the second series compensation capacitance of primary side C3The series arm and first switch S of formation1, primary side compensate inductance Lf1With
The first series compensation capacitance of primary side C1The series arm of formation is parallel with one another, the 4th switch S4With secondary the second series compensation capacitance of side
C4The series arm and third switch S of formation3, secondary side compensate inductance Lf2With secondary the first series compensation capacitance of side C2The series connection of formation
Branch is parallel with one another, and the voltage that transmitting terminal power supply 1 provides is input in high-frequency inverter circuit 2 after being adjusted, inverse using high frequency
The direct current for adjusting overvoltage is converted to the alternating current for meeting resonance frequency by power transformation road 2, and the high-frequency alternating current of variation is emitting
(the i.e. primary side inductance coil L of coil 41) around generate alternating magnetic field, and then (the i.e. secondary inductance coil L of receiving coil 52) in height
The voltage that identical frequency is generated in frequency magnetic field, supply receiving end load 8 uses after the rectification of rectification circuit 7, filtering.This is
System is suitable for the wireless power distribution scene between spacecraft, the wireless power distribution mistake being particularly suitable between the spacecraft of dynamic change spacing
Cheng Zhong is dexterously improved in prior art basis, is additionally arranged first switch S1, second switch S2, third switch S3、
4th switch S4These switch combinations and the second series compensation capacitance of primary side C3With secondary the second series compensation capacitance of side C4, so that
LCC collocation structure and SS collocation structure have carried out perfect combination, and compact overall structure had both been adapted to resonance coupling, while can
It is coupled for magnetic induction, and only can be realized as the switching of two kinds of compensating forms by the control of switch combination, structure is simple
Reliable and operation is convenient, can both apply between remote spacecraft wireless power distribution (be at a distance for short distance,
It can also correspond to the middle and long distance under actual conditions between spacecraft), but it is (close to can be applied to wireless power distribution between short distance spacecraft
Distance alternatively referred to as short distance), when being applied to middle and long distance, controls each switch motion and make the second series compensation capacitance of primary side
C3With secondary the second series compensation capacitance of side C4Circuit is accessed, circuit compensation topological structure is SS tandem type, and adjustment frequency keeps capacitor electric
Sense reaches resonant state and then circuit carries out magnetic resonance radio energy-transmitting；When be applied to short distance when, control switch act so that
Primary side compensates inductance Lf1, the first series compensation capacitance of primary side C1With primary side Shunt compensation capacitor Cf1With secondary the first series compensation of side electricity
Hold C2, pair side Shunt compensation capacitor Cf2Inductance L is compensated with secondary sidef2Circuit is accessed, circuit compensation topological structure is LCC type, adjustment
Capacitor and inductor is made to reach resonant state for frequency and then circuit carries out magnetic inductive radio energy-transmitting namely system uses digital control side
Formula realizes that middle and long distance and short-distance wireless pass effective switching of energy, and transmission cannot be taken into account by solving in existing wireless charging technology
The problem of distance and energy transmission efficiency, provides a kind of novel energy supply mode for spacecraft, and suitability is strong, on the whole greatly
The work quality and working efficiency of wireless charging process are improved greatly, effectively promotes the cruising ability of spacecraft, and is effectively reduced
Wireless power distribution economic cost under space environment.
As shown in second of preferred structure schematic diagram of Fig. 2, Wireless power distribution system removes the knot of embodiment illustrated in fig. 1 between spacecraft
Outside structure, further include monitoring and the various state information parameters of control system master controller 9, four switch with the master controller
9 are connected, and the master controller 9 manually or automatically sends the closure and disconnection of instruction four switches of control, pass through the master control of system
Device 9 processed can control each switch to carry out operation manually or automatically: 1) manual mode: master controller 9 issued to each switch be closed or
The instruction of disconnection, to switch the transmission mode over long distances with short distance；2) pure automatic mode: it is also preferable to include such as scheme for the system
Shown in 3 with master controller 9 be connected at a distance from monitoring device 10, it is described apart from monitoring device 10 monitor two spacecrafts between reality
The result information data monitored are simultaneously transferred to master controller 9, and the pre-determined distance threshold value in master controller 9 by border distance, main
Controller 9 sends the closure and disconnection of instruction four switches of control according to the information data apart from monitoring device 10 automatically, in reality
Control first switch S1, third switch S3 are disconnected when border distance is greater than distance threshold while second switch S2, the 4th switch S4 are closed
It closes, so that primary side the second series compensation capacitance C3 and pair side the second series compensation capacitance C4 accesses circuit, circuit compensation topology knot
Structure is SS tandem type, and adjustment frequency makes capacitor and inductor reach resonant state and then circuit progress magnetic resonance radio energy-transmitting；In reality
Second switch S2, the 4th switch S4 are disconnected simultaneously for control first switch S1, third switch S3 closure when border distance is less than distance threshold
It opens, so that primary side compensation inductance Lf1, primary side the first series compensation capacitance C1 and primary side Shunt compensation capacitor Cf1 and secondary side first
Series compensation capacitance C2, pair compensate inductance Lf2 access circuit, circuit compensation topological structure in Shunt compensation capacitor Cf2 and pair
For LCC type, adjusting frequency makes capacitor and inductor reach resonant state and then circuit progress magnetic inductive radio energy-transmitting.
Preferably, transmitting terminal power supply described in system 1 is directly by spacecraft busbar voltage for direct current.
Preferably, as shown in figure 4, transmitting terminal and receiving end are carried out by contactless Zigbee wireless communication unit 11
For wireless communication to transmit working signal or status information, the especially system aims at the wireless charging during contactless space flight
Electricity needs to carry out complete electrical isolation between system primary side, secondary side, so the communication between primary side, secondary side can not use
Connection can only use communication, and contactless Zigbee wireless communication unit 11 is used to carry out channel radio
For letter to transmit working signal or status information, it is low that low in energy consumption, data transmit reliable and secure, compatible strong and cost of implementation.
Example:
When remote transmission, first switch S is controlled1, third switch S3Disconnect second switch S simultaneously2, the 4th switch S4It closes
It closes, so that the second series compensation capacitance of primary side C3With secondary the second series compensation capacitance of side C4Access circuit, circuit compensation topological structure
For SS tandem type, adjusting frequency makes capacitor and inductor reach resonant state and then circuit progress magnetic resonance radio energy-transmitting mode.
By the former and deputy circuit function when carrying out resonance coupling to improve former and deputy of circuit, system is promoted to have high power work
The ability of work, can quickly generate resonance, and series and parallel coupling capacitance element etc. can eliminate the part induction reactance in circuit.Primary side coupling
It closes capacitor and is to balance the anti-and secondary side of primary side leakage inductance and react induction reactance, thus reduce the apparent energy of system, increase power factor,
Secondary side coupled capacitor is to increase output power to reduce reactive power, whole to promote working efficiency.
The working frequency of system can indicate are as follows:
The π of f=ω/2 (1)
For SS tandem type compensation topology structure at this time, as primary side inductance coil L1, secondary inductance coil L2Respectively and its
When corresponding resonant capacitance is connected, to be optimal performance, primary side inductance coil L1With secondary inductance coil L2Natural resonance angle
The general value of frequency w are as follows:
In formula, C1For the first series compensation capacitance of primary side, C2For secondary the first series compensation capacitance of side, L1、L2Respectively primary side
Inductance coil, secondary inductance coil.The inductance of former secondary inductance coil can be calculated by following formula:
In formula, μ0=4 π × 10-7H/m indicates space permeability；R indicates coil radius；N indicates coil turn；A is indicated
Conductor cross-section radius.
SS tandem type resonance Wireless power distribution system model can be indicated with following matrix equation:
When short range transmission, first switch S is controlled1, third switch S3Closure while second switch S2, the 4th switch S4It is disconnected
It opens, so that primary side compensates inductance Lf1, the first series compensation capacitance of primary side C1With primary side Shunt compensation capacitor Cf1It is gone here and there with secondary side first
Join compensating electric capacity C2, pair side Shunt compensation capacitor Cf2Inductance L is compensated with secondary sidef2Circuit is accessed, circuit compensation topological structure is LCC
Type, adjustment frequency make capacitor and inductor reach resonant state and then circuit progress magnetic inductive radio energy-transmitting.
LCC type compensation way have gain cross-over at input impedance angle be zero, gain cross-over value is not with transformer coupled systemes
The characteristics of number changes, meanwhile, the constant characteristic of primary current allows system to work and reaches single in some fixed frequency point
The requirement of position power factor, voltage and current stress are small.Primary side inductance coil L1With secondary inductance coil L2Can be by general-purpose from inductance value
Table measurement obtains.
Primary side compensates inductance L in LCC type compensation circuitf1, secondary side compensate inductance Lf2Calculation formula it is as follows:
In conjunction in serial-resonant wireless power transmission, when system generates the condition of resonance are as follows:
The primary side Shunt compensation capacitor C of parallel connection part in LCC type compensation circuitf1With secondary side Shunt compensation capacitor Cf2Capacitance
It calculates as follows:
The first series compensation capacitance of primary side C of part in series in LCC type compensation circuit1With secondary the first series compensation capacitance of side
C2Are as follows:
C2=C1+ΔC2 (9)
It is for above-mentioned institute picture 1-4 the invention further relates to a kind of control method of Wireless power distribution system between spacecraft
The control method for showing Wireless power distribution system between the spacecraft of embodiment, suitable for the wireless power distribution scene between spacecraft, such as Fig. 5 sheet
Between invention spacecraft shown in the preferred flow charts of the control method of Wireless power distribution system, the method monitors aviation first at the beginning
The power supply status of spacecraft itself in space when needing electric energy transmission between several spacecrafts, then monitors between spacecraft
Distance relation is the actual range during monitoring space flight, is carried out between Wireless power distribution system two spacecrafts for meeting distance relation
Control controls first switch S when actual range is greater than distance threshold1, third switch S3Disconnect second switch S simultaneously2, the 4th
Switch S4Closure, circuit compensation topology are SS tandem type, and adjusting working frequency makes former secondary side reach resonant state, realize magnetic resonance
Formula radio energy-transmitting；When actual range is less than distance threshold, first switch S is controlled1, third switch S3Closure while second switch
S2, the 4th switch S4It disconnects, circuit compensation topology is LCC type, and adjusting working frequency makes former secondary side reach resonant state, realizes magnetic
Induction type radio energy-transmitting；By controlling first switch S1, second switch S2, third switch S3, the 4th switch S4Open and close
The switching of state and then control system working forms is to meet the needs of wireless power transmission under different spacing.The control method makes
It obtains LCC collocation structure and SS collocation structure has carried out perfect combination and free switching, pass through the number for changing spacecraft wireless power distribution
The switching of two kinds of wireless energy transfer modes that resonance coupling is coupled with magnetic induction may be implemented in word control mode, both can be with
The wireless power distribution between middle and long distance spacecraft is applied, and can be applied to wireless power distribution between short distance spacecraft, has taken into account transmission
Distance and energy transmission efficiency greatly improve system work quality and working efficiency on the whole.
Preferably, the control method also setting monitoring and the master control of the various state information parameters of control system in systems
Device 9 processed manually or automatically sends the closure and disconnection of instruction four switches of control using the master controller 9.The main control
Device 9, can control the operation of each switch progress manually or automatically: 1) manual mode: master controller 9 issues closure to each switch or breaks
The instruction opened, to switch the transmission mode over long distances with short distance；2) pure automatic mode: the control method is also set up and master
Controller 9 be connected apart from monitoring device 10, utilize the actual range monitored between two spacecrafts apart from monitoring device 10
And the result information data monitored are transferred to master controller 9, and the pre-determined distance threshold value in master controller 9, recycle master
Controller 9 sends the closure and disconnection of instruction four switches of control according to the information data apart from monitoring device 10 automatically, in reality
Control first switch S1, third switch S3 are disconnected when border distance is greater than distance threshold while second switch S2, the 4th switch S4 are closed
It closes, so that primary side the second series compensation capacitance C3 and pair side the second series compensation capacitance C4 accesses circuit, system enters SS compensation
Network topology structure form work with realize remote-wireless electric energy transmit, adjustment frequency make capacitor and inductor reach resonant state into
And circuit carries out magnetic resonance radio energy-transmitting；First switch S1, third switch S3 are controlled when actual range is less than distance threshold
Second switch S2, the 4th switch S4 are disconnected closure simultaneously, so that primary side compensates inductance Lf1, the first series compensation capacitance of primary side C1
With the primary side Shunt compensation capacitor Cf1 and secondary Shunt compensation capacitor Cf2 in the first series compensation capacitance C2, pair and secondary side compensation electricity
Feel Lf2 and access circuit, system enters the work of LCC compensation network topographical form to realize that near radio electric energy transmits, adjusts
Whole frequency makes capacitor and inductor reach resonant state and then circuit progress magnetic inductive radio energy-transmitting.
Preferably, during radio transmission, the control method is using spacecraft busbar voltage to wireless power distribution
The transmitting terminal power supply 1 of system carries out direct current supply.
Preferably, during the wireless power transmission of the control method, the transmitting terminal of Wireless power distribution system and receiving end
It is carried out wireless communication by contactless Zigbee wireless communication unit 11 to transmit working signal or status information, power consumption
It is low that low, data transmit reliable and secure, compatible strong and cost of implementation.
It should be pointed out that specific embodiment described above can make those skilled in the art that the present invention be more fully understood
It creates, but do not limit the invention in any way is created.Therefore, although this specification creates the present invention referring to drawings and examples
It makes and has been carried out detailed description, it will be understood by those skilled in the art, however, that still can modify to the invention
Or equivalent replacement, in short, the technical solution and its improvement of all spirit and scope for not departing from the invention, should all contain
It covers in the protection scope of the invention patent.
Claims (10)
1. Wireless power distribution system between a kind of spacecraft, including sequentially connected transmitting terminal power supply, high-frequency inverter circuit, transmitting terminal
LCC compensation circuit, transmitting coil, receiving coil, receiving end LCC compensation circuit, rectification circuit and receiving end load, the transmitting
Coil and the receiving coil are contactless connection, and the transmitting terminal LCC compensation circuit includes the original mutually coupled in series and parallel
Side compensates inductance, the first series compensation capacitance of primary side and primary side Shunt compensation capacitor, and the receiving end LCC compensation circuit includes phase
The secondary Shunt compensation capacitor in the first series compensation capacitance, pair mutually coupled in series and parallel and secondary side compensation inductance, which is characterized in that
System further includes and primary side compensates the concatenated first switch of inductance, the second switch being serially connected and primary side the second series compensation electricity
Hold, with it is secondary while compensate the concatenated third switch of inductance and the 4th switch being serially connected and it is secondary while the second series compensation capacitance,
And the series arm that is formed of second switch and the second series compensation capacitance of primary side and first switch, primary side compensation inductance and primary side the
The series arm that one series compensation capacitance is formed is parallel with one another, the series connection that the 4th switch and secondary the second series compensation capacitance of side are formed
Branch is switched with third, the secondary series arm that the first series compensation capacitance is formed when compensating inductance and pair is parallel with one another.
2. Wireless power distribution system between spacecraft according to claim 1, which is characterized in that further include monitoring and control system
The master controller of various state information parameters, four switches are connected with the master controller, the master controller manually or from
The dynamic closure and disconnection for sending instruction four switches of control.
3. Wireless power distribution system between spacecraft according to claim 2, which is characterized in that further include being connected with master controller
Apart from monitoring device, it is described to monitor the actual range between two spacecrafts simultaneously by information data transmission to master apart from monitoring device
Controller, master controller send the closure of four switches of instruction control automatically according to the information data apart from monitoring device and break
It opens, when actual range is greater than distance threshold, control first switch, third switch disconnect second switch, the 4th switch simultaneously and close
It closes, first switch is controlled when actual range is less than distance threshold, third closes the switch while second switch, the 4th switch are disconnected
It opens.
4. Wireless power distribution system between spacecraft described in one of -3 according to claim 1, which is characterized in that the transmitting terminal power supply
Directly by spacecraft busbar voltage for direct current.
5. Wireless power distribution system between spacecraft according to claim 4, which is characterized in that transmitting terminal and receiving end pass through non-
The Zigbee wireless communication unit of contact is carried out wireless communication to transmit working signal or status information.
6. the control method of Wireless power distribution system between a kind of spacecraft described in one of -5 according to claim 1, which is characterized in that
The method monitors the power supply status of spacecraft itself in aerospace first, transmits when needing electric energy between several spacecrafts
When, then the distance relation between spacecraft is monitored, Wireless power distribution system two spacecrafts for meeting distance relation is controlled,
When distance relation is greater than distance threshold, control first switch, third switch disconnect second switch, the 4th simultaneously and close the switch,
Circuit compensation topology is SS tandem type, realizes magnetic resonance type radio energy-transmitting；When distance relation is less than distance threshold, control first
Switch, third closes the switch simultaneously second switch, the 4th switch disconnect, circuit compensation topology be LCC type, realization magnetic inductive without
Line passes energy；It is controlled by the open and close state of control first switch, second switch, third switch, the 4th switch and is
The switching of system working forms is to meet the needs of wireless power transmission under different spacing.
7. control method according to claim 6, which is characterized in that also simultaneously control system is various for setting monitoring in systems
The master controller of state information parameters, using the master controller manually or automatically send instruction control four switch closures with
It disconnects.
8. control method according to claim 7, which is characterized in that also set up and monitor dress at a distance from being connected with master controller
It sets, monitors the actual range between two spacecrafts and by information data transmission to master controller apart from monitoring device using described,
Master controller is recycled to send the closure and disconnection of instruction four switches of control automatically according to the information data apart from monitoring device,
When actual range is greater than distance threshold, control first switch, third switch disconnect second switch, the 4th simultaneously and close the switch, and are
System enters SS compensation network topographical form and works to realize that remote-wireless electric energy transmits, and is less than in actual range apart from threshold
First switch is controlled when value, third closes the switch while second switch, the 4th switch disconnection, system enter LCC compensation network and open up
Structure type work is flutterred to realize that near radio electric energy transmits.
9. control method according to claim 8, which is characterized in that during radio transmission, utilize spacecraft
Busbar voltage carries out direct current supply to the transmitting terminal power supply of Wireless power distribution system.
10. control method according to claim 8 or claim 9, which is characterized in that during radio transmission, wirelessly match
The transmitting terminal of electric system and receiving end are carried out wireless communication by contactless Zigbee wireless communication unit to transmit work
Signal or status information.
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