CN109546758A - A kind of underwater wireless electric energy transmission system using distribution capacity transmission signal - Google Patents
A kind of underwater wireless electric energy transmission system using distribution capacity transmission signal Download PDFInfo
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- H—ELECTRICITY
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Abstract
A kind of underwater wireless electric energy transmission system using distribution capacity transmission signal, belongs to wireless power transmission technical field, including energy transmission system and signal transmission system.Emitting side high frequency electric source in energy transmission system is connect with emitting side compensation network, the voltage of emitting side compensation network output is applied to the transmitting coil of energy coupling mechanism, the receiving side of energy coupling mechanism receives energy and is transmitted to receiving side compensation network, is rectified into load supplying through high-frequency rectification circuit；The load information of acquisition is transmitted to signal modulation amplifying circuit by the signal acquisition circuit in signal transmission system, modulated signal is loaded into the emitting side of signal coupling mechanism, the modulated signal that signal coupling mechanism obtains receiving side is transmitted to signal demodulation filter circuit, demodulated filtering output loading signal realizes the synchronous transfer of energy and signal.Present system can stable operation in respective frequency range；Meanwhile signal decay under water it is smaller, can high efficiency of transmission.
Description
Technical field
The present invention proposes that one kind is same for underwater induction type wireless power transmission and using stary capacity of coil progress signal
When the scheme transmitted, belong to non-electrical contact electric energy transmission technology field.
Background technique
Carrying out electric energy transmission by conducting wire is the most common power supply mode.Non-contacting wireless power transmission compares wired electricity
The electric energy transmission mode of cable application when have the characteristics that flexibly it is easy-to-use, especially moist, underwater or inflammable and explosive etc. special
Occasion has more significant superiority.For the mobile device to work in an underwater environment, when needing replacing, underwater pluggable
With biggish security risk.In real work, inductive coupled wireless power Transmission system is by operating condition and environmental change
Etc. factors be affected, such as transmitting, receiving coil change in location and system operating frequency drift.In the case where working long hours, line
The fever and aging of circle and switching tube can all have an adverse effect to radio energy system, cause under efficiency of transmission and power
Drop.For the stability for guaranteeing radio energy transmission system, need to carry out closed-loop control to system.Therefore, in wireless power transmission
In system, in addition to electric energy transmission channel, also need to add signal transmission.
Non-electrical contact electric energy transmission technology is transmitted using electromagnetic induction principle.As special power supply device, it is
Transimission power, efficiency and the system robustness of system are all concerned.In practical applications, it should guarantee safety and reliability
On the basis of, improve the transimission power and efficiency of system.In closed-loop control, real-time Acquisition Circuit operating current, voltage are needed
Value, and obtained signal is transmitted to controller.From the point of view of present Research both domestic and external, the underwater energy that carries out passes simultaneously with signal
Defeated, there are two types of existing solutions, one is increasing additional signal transmission passage to be used for transmission information, realizes energy and letter
Number individual transmission.Such as in such a way that Zigbee or infrared radio frequency carry out signal transmission.But this method system complex, cost compared with
Height, message transmission rate are slower.Another method is to be used separately as signal transmission and energy transmission using two pairs of coils.It is used as
The coil of signal transmission, flows through that its power frequency is higher, electric current is larger, biggish eddy-current loss can be generated under water, to signal
Channel transfer quality is affected.Meanwhile existing between multi-coil and intercoupling, there are biggish dry between energy and signal
It disturbs.Electric energy and signal synchronous transfer are carried out in such a way that magnetic field is combined with electric field, can efficiently solve and only rely on magnetic field
The drawbacks of being wirelessly transferred.When transmitting under water, due to seawater have biggish conductivity, compared in air, coil it
Between and coil and seawater between there is distribution capacity.Therefore propose it is a kind of using distribution capacity carry out signal transmission, couple
The scheme of coil progress energy transmission.
Summary of the invention
It is an object of the present invention to which it is dry to solve energy and channel when signal simultaneous transmission in existing radio energy Transmission system
Larger problem is disturbed, the program may be implemented the independent simultaneous transmission of energy and signal, improve the steady of radio energy transmission system
It is qualitative.Signal transmission pathway transmission frequency of the present invention is high, using frequency division technique, in induction type radio energy transmission system, energy
Measure channel and signal transmission passage frequency it is noiseless, system can stable operation in respective frequency range；Meanwhile utilizing Electric field
Wireless power transmission technology carries out signal transmission, signal decay under water it is smaller, can high efficiency of transmission；Make full use of energy transmission logical
Road transimission power is big, lesser advantage is lost in signal RF section transmission channel.
In order to achieve the above objectives, the technical solution of the present invention is as follows:
A kind of underwater wireless electric energy transmission system using distribution capacity transmission signal, including energy transmission system and signal
The load signal that energy receiving side collects is transmitted to the closed-loop control that energy transmitting side carries out system, mentioned by Transmission system
High system run all right and robustness.
The energy transmission system includes emitting side high frequency electric source, emitting side compensation network, energy coupling mechanism, receives
Side compensation network, high-frequency rectification circuit and load.
The emitting side high frequency inverter includes power frequency supply, low frequency rectification circuit and high-frequency inverter circuit.High frequency
Inverter provides required high-frequency energy for energy coupling mechanism, power frequency supply is obtained through low frequency rectifier circuit rectifies straight
Galvanic electricity pressure, gained DC voltage are transmitted to emitting side compensation network by high-frequency inverter circuit inversion after high-frequency ac, frequency is logical
It is often kHz.The emitting side high frequency inverter includes Royer oscillating circuit, E class, half-bridge, full-bridge, push-pull type inversion electricity
Road etc..Different inversion topological structures is chosen according to required transimission power grade, and switching tube is reduced using soft switch technique and is led
The logical loss with when shutdown.
The emitting side compensation network makes transformed input impedance be equivalent to purely resistive load, reduces energy coupling mechanism
Reactive loss in energy transmission improves transimission power and efficiency.The high frequency square wave that emitting side high frequency electric source generates is emitted
Side compensation network filters out high frequency odd harmonic component, and gained high frequency fundamental is transmitted to energy coupling mechanism.For coil composition
Energy coupling mechanism, emitting side compensation network generally include the series-parallel combinatorial topology of a capacitor or capacitor and inductance, T-type
Or π type is relatively conventional, specific constructive form is determined by system output characteristics and coupling mechanism parameter.By the principle of duality of circuit,
For the signal coupling mechanism being made of capacitor, compensation network includes the combination of an inductance or inductance and capacitor.
The energy coupling mechanism includes transmitting coil and receiving coil, and transmitting coil is connected with emitting side compensation network,
High frequency fundamental component is loaded in transmitting coil.By Faraday's electromagnetic induction law, alternating electric field generates variation in coupling mechanism
Magnetic field the changing magnetic field in coupling mechanism is similarly switched to the electric energy in receiving coil using the law of electromagnetic induction.Electricity
The non-electrical contact electric energy transmission of emitting side and receiving side is realized in the conversion of magnetoelectricity.Coupling mechanism, which can be divided into, has magnetic core and without magnetic core
Two classes, under high frequency state, magnetic core uses high frequency ferrite, permalloy or amorphous soft magnetic alloy.Generally use Mn-Zn iron oxygen
Body, its main feature is that initial permeability is high, high-frequency loss is small.Common core shapes include E shape, PU shape, EI shape etc..There is the coupling of magnetic core
It is higher to close the mechanism coefficient of coup, bigger electric energy can be transmitted compared with no magnetic core.Winding arrangement multiplicity without magnetic core, using litz wire system
Make coupling mechanism to reduce AC equivalent resistance.Apart from it is identical when, different coupled systemes can be obtained using different coupled modes
Number.Under water in transmission process, by the firm fixation of coupling mechanism, to reduce because coupling distance and the variation of coil positive area cause
Coil mutual inductance and distribution capacity variation, cause compensating parameter matching inaccuracy, influence system high efficiency stable operation.Under water
Carry out non-electrical contact electric energy transmission when, canoe difference be affected to the size of distribution capacity, for improve coil it
Between distribution capacity, using plane formula symmetrically without magnetic core coupling mechanism.
The receiving side compensation network is connected with receiving coil, is presented as pure resistance spy for adjusting receiving side equivalent impedance
Property, so that receiving side is reached resonant state under high frequency state, improves system output power.The receiving side compensation network includes
The combinational network of capacitor or capacitor and inductance, specific topological structure are determined by system output characteristics and coupling mechanism parameter.
High-frequency rectification uses the full bridge rectifier of fast recovery diode composition, exports through LC filtering or capacitor filtering pressure stabilizing
DC voltage.Receiving side compensation network connect with receiving side high-frequency rectification circuit after for load electric energy is provided.
The signal transmission system includes signal acquisition circuit, signal modulation amplifying circuit, signal coupling mechanism, signal solution
Adjust filter circuit.
The signal acquisition circuit is connected with the output of energy transmission authorities side rectifier filter circuit, and acquisition is negative
Carry operating voltage or electric current.By sampled value obtained by signal detection go forward side by side with reference voltage is through comparison circuit compared with line level convert it is defeated
It is out digital signal " 0 " and " 1 ".
The digital signal " 0 " and " 1 " that the signal modulation amplifying circuit is used to obtain level conversion are high by control
The form of frequency carrier wave is loaded into signal coupling mechanism.High frequent carrier frequency is usually MHz, is passed with eliminating signal path and energy
The interference in defeated channel.According to the difference of carrier wave self-characteristic, common digital signal modulation mode includes amplitude-shift keying
(Amplitude ShiftKeying, ASK), frequency shift keying (Frequency Shift Keying, FSK) and phase-shift keying
(Phase Shift Keying,PSK).In non-contact electric energy transmission system, the selection of signal modulation mode needs combined circuit
The convenience degree etc. of the influence and signal detection of design difficulty, signal to energy-transmission channel comprehensively considers.To guarantee signal
It is effectively transmitted in coupling distance, signal is amplified using power amplifier circuit and is exported.
Signal coupling mechanism parasitic capacitance between coupling coil.Signal coupling mechanism be divided into signal transmitting capacitor and
Receive capacitor.Compared in air, seawater has biggish conductivity (being 0S/m in usual air, be 4S/m in seawater), coupling machine
Parasitic capacitance between formation coil between structure；In radio frequency system, for stranded conductor, turn-to-turn capacitance and coil need to be considered to seawater
Distribution capacity.High frequency coil turn-to-turn capacitance is reduced to electricity in parallel with coupling mechanism with equivalent capacity of the coupling mechanism to seawater
Hold branch.Parasitic capacitance is connected across between coupling inductance between coupling mechanism.Signal modulation amplifying circuit loads modulated signal
Emit capacitor to signal, couples signal for the signal that modulation amplifying circuit exports by way of Electric field wireless power transmission
Receive capacitor.When carrying out signal transmission using capacitor under water, signal attenuation losses are smaller, simultaneously because the energy of signal transmission
It is smaller, without considering capacitive insulation problem, i.e., without doing more process to coil.
The signal demodulation filter circuit is used for the received carrier modulation with digital signal of signal coupling mechanism
For digital signal " 0 " and " 1 ".Signal demodulation is divided into non-coherent demodulation and coherent demodulation method.In non-contact electric energy transmission system,
Carrier synchronization signal can not accurately obtain in signal extraction side, and for the transmission for guaranteeing signal, the present invention uses non-coherent demodulation
Method.This method has amplitude-shift keying and frequency shift keying two ways.Demodulator circuit includes potential-divider network, isolating transformer, voltage
Follower, envelope detector, low-pass filter and comparator link.The signal demodulation filter circuit is for extracting signal coupling
Close authorities capacitor in modulated signal, signal demodulate filter circuit by bleeder circuit, voltage follower, envelope detector and
Low-pass filter composition.Envelope detector utilizes the charge and discharge process of the characteristics of diode unilateral conduction and resistance capacitance to friendship
Flow amplitude envelope processing.By the signal with Envelope Properties that wave detector obtains by low-pass filtering link filter out high fdrequency component and
Noise obtains the square wave of low frequency link, and more finally demodulates digital signal through overvoltage, realizes that energy acceptance laterally emits
The signal communication of side.
The square wave that the emitting side high frequency electric source generates is connected to emitting side compensation network, the output of emitting side compensation network
High frequency sinusoidal voltage be applied to the transmitting coil of energy coupling mechanism, the receiving side of energy coupling mechanism receives energy and passes
Receiving side compensation network is transported to, is rectified into load supplying through high-frequency rectification circuit；Signal acquisition circuit is by the load information of acquisition
It is transmitted to signal modulation amplifying circuit, modulated enhanced processing, obtained modulated signal is loaded into the transmitting of signal coupling mechanism
Side, signal coupling mechanism are the distribution capacity of energy coupling mechanism when underwater wireless electric energy transmits；Signal coupling mechanism will receive
The modulated signal that side obtains is transmitted to signal demodulation filter circuit, demodulated filtering output loading signal；Realize energy and signal
Synchronous transfer.
The invention has the benefit that
1) realize underwater environment in energy and signal synchronous transfer, real-time load operating condition can be obtained, convenient for into
One step realizes closed-loop control, improves radio energy transmission system robustness；
2) parasitic capacitance when directly being transmitted using underwater wireless electric energy between coil is as signal transmission passage, without increasing
If additional signal transmission mechanism and complicated control circuit.Using magnetic field carry out energy transmission, electric field carry out signal transmission, two
Person interfere with each other it is smaller, guarantee energy efficient transmit while, signal energy accurate delivery；
3) energy coupling mechanism is compensated, improves the transmittability and efficiency of system；It is mended in energy coupling mechanism
When repaying design, using the shunt capacitance branch of coupling mechanism as a part of compensating parameter.
4) signal modulation and demodulation are carried out using amplitude-shift keying, controls carrier amplitude, transmit signal using non-coherent demodulation.
Detailed description of the invention
Fig. 1 is underwater operation state lower coil and the mutual inductance coupling model for considering parasitic capacitance.It (a) is coupling coil model, (b)
It is the underwater coupling coil mutual inductance coupling model for considering parasitic capacitance.
Fig. 2 is the system block diagram that underwater induction type wireless power transmission and distribution capacity carry out signal transmission.
Fig. 3 (a) is the signal modulation circuit schematic diagram using amplitude-shift keying, and Fig. 3 (b) is the signal solution using amplitude-shift keying
Adjust circuit.
Fig. 4 (a) is energy transmission schematic diagram；Fig. 4 (b) is that signal transmits schematic diagram.
Specific embodiment
The present invention will be specifically described by Figure of description and technical solution below.However it will be appreciated that not having
In the case where being further discussed below, the structure and features referred in the present invention also be can be incorporated into other embodiment.
Referring to Fig. 1, since seawater has biggish conductivity, when high-frequency current flows through energy coupling mechanism, in coupling line
Parasitic capacitance C is generated between circleM, calculation formula are as follows:
CM=ε0εrσS/d
Wherein, ε0、εrVacuum and dielectric permittivity are respectively indicated, σ indicates dielectric conductance rate, and S, d respectively indicate coil and cut
Area and coil-span.
For the turn-to-turn capacitance C of high frequency lower coilp-self、Cs-self, shown in schematic diagram such as Fig. 1 (b).It, will for easy analysis
Multiturn litz wire is equivalent to single-turn circular coil.Ignore insulating layer, then turn-to-turn capacitance are as follows:
Consider influence of the thickness of insulating layer to capacitance, capacitor between air gap and insulating layer are as follows:
When considering insulating layer, the value of turn-to-turn capacitance is the series value of Cr and Cg.The total turn-to-turn capacitance of N circle coil are as follows:
Wherein, r is coil radius；L coil-span between single layer；A is thickness of insulating layer.
With continued reference to Fig. 1 (b), the high-frequency current for flowing through transmitting lateral coil generates variation magnetic field, by faraday electromagnetic induction
Law generates the electromotive force of variation in the seawater, due to the conductive energy of seawater, can generate a part of thermal losses, the part
For the eddy-current loss of energy coupling mechanism.
Fig. 2 is the system block diagram that underwater induction type wireless power transmission and distribution capacity of the invention carry out signal transmission.
It is a kind of that signal synchronous transfer scheme being carried out including emitting based on induction type wireless power transmission and distribution capacity applied to underwater
Side high frequency inverter, emitting side compensation network, transmitting coil, receiving coil, receiving side compensation network, high-frequency rectification circuit and
Load.Signal transmission passage includes the modules such as signal acquisition, signal modulation amplification, signal demodulation.Low frequency rectification circuit is by power frequency
Power rectifier is direct current, the input as high-frequency inverter circuit.The emitted side compensation network of the high frequency square wave that inversion exports
High-order component is filtered out, transmitting coil is loaded into.Energy is converted into magnetic field through electric field, the electric energy being then converted on receiving coil.Most
Load is loaded into after received side compensation and filtering high-frequency rectifier eventually.Signal transfer direction is from energy receiving coil to transmitting
Coil.The load signal collected is exported compared with reference voltage by certain rule as the digital signal of " 0 " and " 1 ", letter
Number it is loaded into signal coupling mechanism through power amplification, carries out signal demodulation filtering in signal receiving side.
By contrast, in wireless power transmission technology, signal modulation and demodulation are carried out using amplitude-shift keying.Use carrier amplitude
It indicates signal characteristic, puts row control by the state of modulated signal is split, and then obtain signal identical with carrier amplitude state.
Switching frequency is much higher than electric energy transmission frequency, Chang Wei MHz.Signal modulation circuit is in the nature a kind of multiplier circuit.Fig. 3 (a) is
Using the signal modulation circuit schematic diagram of amplitude-shift keying.S1、S2For the field-effect tube in switch state that works, working condition can divide
Are as follows:
1) work as usignal=1, u 'signalWhen=0, S1Conducting, S2End, at this time uo=ui；
2) work as usignal=0, u 'signalWhen=1, S1Cut-off, S2It is connected, at this time uo=0.
Fig. 3 (b) is the signal demodulating circuit using amplitude-shift keying.Using diode detection circuit, resistance capacitance is utilized
Charge and discharge process carries out envelope to the AC signal comprising two kinds of amplitudes, and the low-pass filtered circuit of signal filters out high-frequency harmonic.
Using voltage comparator circuit, reference voltage exports signal after being compared from the voltage of different amplitudes.
Fig. 4 (a) is only electric energy transmission channel schematic diagram, and two coils are used as coupling mechanism, direction for by emitting side to connecing
Receive side；Fig. 4 (b) is signals transmission, and direction is by receiving side to emitting side.Magnetic field and electric field is respectively adopted in energy and signal
As transmission medium, interfere with each other smaller.Signal transmission frequencies are much larger than energy-transmission channel, and self-induction of loop is when signal transmits
Equivalent impedance is big, is approximately breaking processing；Similarly, in electric energy transmission process, parasitic capacitance between briny environment lower coil
And turn-to-turn capacitance makees open circuit processing.
The load signal that energy receiving side collects is transmitted to the closed loop control that energy transmitting side carries out system by the present invention
System improves system run all right and robustness.Underwater induction type radio energy transmission system, in electric energy transmission process, coupling
There are biggish distribution capacity between the emitting side and receiving side of zygonema circle.
Embodiment described above only expresses embodiments of the present invention, and but it cannot be understood as to the invention patent
Range limitation, it is noted that for those skilled in the art, without departing from the inventive concept of the premise, also
Several modifications and improvements can be made, these are all belonged to the scope of protection of the present invention.
Claims (8)
1. a kind of underwater wireless electric energy transmission system using distribution capacity transmission signal, which is characterized in that the underwater nothing
Line electric energy transmission system includes energy transmission system and signal transmission system, and the load signal that energy receiving side is collected passes
Transport to the closed-loop control that energy transmitting side carries out system；
The energy transmission system includes emitting side high frequency electric source, emitting side compensation network, energy coupling mechanism, receiving side benefit
Repay network, high-frequency rectification circuit and load；
The emitting side high frequency inverter includes power frequency supply, low frequency rectification circuit and high-frequency inverter circuit, power frequency supply
DC voltage is obtained through low frequency rectifier circuit rectifies, gained DC voltage is transmitted after high-frequency ac by high-frequency inverter circuit inversion
To emitting side compensation network；The emitting side compensation network makes transformed input impedance be equivalent to purely resistive load, emitting side
After the emitted side compensation network of high frequency square wave that high frequency electric source generates, gained high frequency fundamental is transmitted to energy coupling mechanism；It is described
Energy coupling mechanism includes transmitting coil and receiving coil, and transmitting coil is connected with emitting side compensation network, high frequency fundamental component
Load is in transmitting coil；The receiving side compensation network is connected with receiving coil, is presented as adjusting receiving side equivalent impedance
Pure resistance characteristic makes receiving side reach resonant state under high frequency state；The high-frequency rectification uses full bridge rectifier, warp
LC filtering or capacitor filtering pressure stabilizing export DC voltage, and receiving side compensation network is negative after connecting with receiving side high-frequency rectification circuit
It carries and electric energy is provided；
The signal transmission system includes signal acquisition circuit, signal modulation amplifying circuit, signal coupling mechanism, signal demodulation filter
Wave circuit；
The signal acquisition circuit is connected with the output of energy transmission authorities side rectifier filter circuit, acquisition load work
Make voltage or electric current, the line level conversion of going forward side by side with reference voltage is through comparison circuit compared with of sampled value obtained by signal detection is exported and is
Digital signal；The digital signal that the signal modulation amplifying circuit is used to obtain level conversion passes through control high frequency carrier
Form is loaded into signal coupling mechanism, and modulated signal is loaded into signal transmitting capacitor by signal modulation amplifying circuit, passes through electricity
The mode of field formula wireless power transmission couples signal for the signal that modulation amplifying circuit exports and receives capacitor；The signal coupling
Mechanism parasitic capacitance between coupling coil, signal coupling mechanism be divided into signal transmitting capacitor and receive capacitor, coupling mechanism it
Between parasitic capacitance be connected across between coupling inductance；The signal modulation filter circuit is used for the received band of signal coupling mechanism
The carrier modulation for having digital signal is digital signal；In non-contact electric energy transmission system, using non-coherent demodulation method；
The emitting side high frequency electric source is connect with emitting side compensation network, and the voltage of emitting side compensation network output is applied to energy
The transmitting coil of coupling mechanism is measured, the receiving side of energy coupling mechanism receives energy and is transmitted to receiving side compensation network, through height
Frequency rectifier circuit rectifies are load supplying；The load information of acquisition is transmitted to signal modulation amplifying circuit by signal acquisition circuit,
Modulated enhanced processing, obtained modulated signal are loaded into the emitting side of signal coupling mechanism, and signal coupling mechanism is underwater nothing
The distribution capacity of energy coupling mechanism when line electric energy transmits；The modulated signal that signal coupling mechanism obtains receiving side is transmitted to letter
Number demodulation filter circuit, demodulated filtering output loading signal；Realize the synchronous transfer of energy and signal.
2. a kind of underwater wireless electric energy transmission system using distribution capacity transmission signal according to claim 1, special
Sign is that the signal demodulation filter circuit is used to extract the modulated signal in signal coupling mechanism reception capacitor, signal solution
Filter circuit is adjusted to be made of bleeder circuit, voltage follower, envelope detector and low-pass filter；The network wave detector utilizes
The charge and discharge process of the characteristics of diode unilateral conduction and resistance capacitance is to alternating-current magnitude envelope processing；Wave detector is obtained
Signal with Envelope Properties filters out high fdrequency component and noise by low-pass filtering link, obtains the square wave of low frequency link, and pass through
Overvoltage more finally demodulates digital signal, realizes the signal communication of the lateral emitting side of energy acceptance.
3. a kind of underwater wireless electric energy transmission system using distribution capacity transmission signal according to claim 1 or 2,
It is characterized in that, for the energy coupling mechanism of coil composition, the emitting side compensation network includes a capacitor or capacitor
With the series-parallel combinatorial topology of inductance, specific constructive form is determined by system output characteristics and coupling mechanism parameter.
4. a kind of underwater wireless electric energy transmission system using distribution capacity transmission signal according to claim 1 or 2,
It is characterized in that, when carrying out non-electrical contact electric energy transmission under water, the energy coupling mechanism uses the symmetrical nothing of plane formula
Magnetic core coupling mechanism.
5. a kind of underwater wireless electric energy transmission system using distribution capacity transmission signal according to claim 3, special
Sign is that when carrying out non-electrical contact electric energy transmission under water, the energy coupling mechanism is using plane formula symmetrically without magnetic
Core coupling mechanism.
6. a kind of underwater wireless electric energy transmission system using distribution capacity transmission signal described according to claim 1 or 2 or 5
System, which is characterized in that the receiving side compensation network includes the combinational network of capacitor or capacitor and inductance, specific topological structure
It is determined by system output characteristics and coupling mechanism parameter.
7. a kind of underwater wireless electric energy transmission system using distribution capacity transmission signal according to claim 3, special
Sign is that the receiving side compensation network includes the combinational network of capacitor or capacitor and inductance, and specific topological structure is by system
Output characteristics and coupling mechanism parameter determine.
8. a kind of underwater wireless electric energy transmission system using distribution capacity transmission signal according to claim 4, special
Sign is that the receiving side compensation network includes the combinational network of capacitor or capacitor and inductance, and specific topological structure is by system
Output characteristics and coupling mechanism parameter determine.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138094A (en) * | 2019-05-30 | 2019-08-16 | 大连理工大学 | Electric field radio energy and bidirectional signal transmission system |
| CN111030315A (en) * | 2019-12-03 | 2020-04-17 | 广东电科院能源技术有限责任公司 | Wireless charging system of underwater equipment, coil of wireless charging system and maximum power tracking method |
| CN111063181A (en) * | 2019-12-16 | 2020-04-24 | 佛山科学技术学院 | Wireless data transmission system |
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