CN116760203A - Magnetic resonance electric energy transmission and communication system - Google Patents

Magnetic resonance electric energy transmission and communication system Download PDF

Info

Publication number
CN116760203A
CN116760203A CN202310829577.2A CN202310829577A CN116760203A CN 116760203 A CN116760203 A CN 116760203A CN 202310829577 A CN202310829577 A CN 202310829577A CN 116760203 A CN116760203 A CN 116760203A
Authority
CN
China
Prior art keywords
communication
harmonic
voltage
primary
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310829577.2A
Other languages
Chinese (zh)
Inventor
张�浩
周文龙
林坚
刘超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Yuangan Technology Co ltd
Original Assignee
Suzhou Yuangan Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Yuangan Technology Co ltd filed Critical Suzhou Yuangan Technology Co ltd
Priority to CN202310829577.2A priority Critical patent/CN116760203A/en
Publication of CN116760203A publication Critical patent/CN116760203A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/4807—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode having a high frequency intermediate AC stage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/4815—Resonant converters

Abstract

The invention provides a magnetic resonance electric energy transmission and communication system, which realizes a signal and energy simultaneous transmission integrated system. The direct current power supply drives the inverter to generate high-frequency sine wave voltage, energy is transferred from the transmitting end to the receiving end through the coupling effect of the primary coil and the secondary coil, the sine wave voltage received by the secondary coil is converted into direct current voltage through the rectifier to supply power for charging or other electric equipment, the resonance state of the harmonic compensation branch is changed by controlling the on-off of the communication modulation switch to input information data, harmonic voltage components are changed, corresponding voltage changes are converted into input information data through the communication demodulation envelope detector, and information transfer is achieved. The invention realizes synchronous transmission of information and energy, avoids the need of arranging a new information transmission module separately besides an electric energy transmission module, saves cost and simultaneously realizes miniaturization of the system.

Description

Magnetic resonance electric energy transmission and communication system
Technical Field
The invention relates to the technical field of wireless power transmission, in particular to a magnetic resonance power transmission and communication system.
Background
With the development of technology, the demand for wireless power transmission technology is gradually increasing in the fields of new energy automobiles, photovoltaics and robots. In the prior art, wireless power transmission is still in a mode of using a coil winding, and the problem brought by the inherent mode is that high working frequency cannot be realized, the power transmission efficiency is very low, and communication can be realized by means of other communication paths when communication is needed to be carried out, so that data of wireless power transmission can be obtained.
Disclosure of Invention
Based on the problems, the invention provides a magnetic resonance electric energy transmission and communication system, which realizes wireless electric energy transmission and communication cooperative integration, namely a signal and energy simultaneous transmission integrated system. The invention adopts resonant wireless power transmission to improve the working frequency of the system, so that the coil can still realize higher quality factor under the condition of smaller turns.
In order to achieve the above object, the present invention provides the following technical solutions.
In one aspect, the invention provides a magnetic resonance power transmission and communication system, comprising an inverter, a rectifier, a coupling coil, a harmonic compensation network, a communication modulation switch and a communication demodulation envelope detector;
the DC power supply drives the inverter to generate high-frequency sine wave voltage, energy is transferred from the transmitting end to the receiving end through the coupling action of the primary coil and the secondary coil, and the sine wave voltage received by the secondary coil is converted into DC voltage through the rectifier to supply power for equipment.
Further, the inverter is EF 2 Class inverter, the rectifier is EF 2 And the inverter and the rectifier are structurally provided with F-type harmonic compensation branches.
Further, the input information data changes the resonance state of the harmonic compensation branch by controlling the on-off of the communication modulation switch, so that the harmonic voltage component changes, the sine wave voltage on the secondary (primary) coil correspondingly changes, the same harmonic voltage change can be sensed by the coupling action on the primary (secondary) coil, and the corresponding voltage change is converted into the input information data by the communication demodulation envelope detector.
Further, the inverter comprises a choke coil direct current power supply, a transistor and a compensation element capacitor, wherein the compensation element capacitor is the compensation transistor output capacitor.
Further, the rectifier comprises a first diode, a first compensation capacitor and a direct current filter network.
Further, the coupling coil includes a primary coil including a primary series inductance, a primary series capacitance, and a primary series resistance, and a secondary coil including a secondary series inductance, a secondary series capacitance, and a secondary series resistance.
Further, the harmonic compensation network comprises a second inductor and a second capacitor, and the second inductor and the second capacitor are in series resonance at a second harmonic frequency point.
Further, the communication demodulation envelope detector comprises a second diode and a voltage divider network.
Further, the system also includes a primary communication modulation, a secondary communication modulation, a forward communication demodulation output port, and a reverse communication demodulation output port.
Further, when the system is in operation, it performs the following method:
when the secondary communication modulation node and the primary communication modulation node are under the high-level voltage control condition, the working state of the communication modulation switch is in an on state, the series resonance of the second inductor and the second capacitor is in a second harmonic frequency point, and the second harmonic of the inverter and the rectifier is compensated;
when the primary communication modulation node is under the control condition of high-level voltage, the secondary communication modulation node is switched on/off through a high-low level modulation rectifier second harmonic compensation network of a data stream, and a communication demodulation envelope detector reverse communication demodulation output port in an inverter harmonic compensation network senses the high-low level voltage of the secondary communication modulation;
when the secondary communication modulation node is under the control condition of high-level voltage, the high-low level modulation inverter second harmonic compensation network of the primary communication modulation node is turned on/off, and a forward communication demodulation output port of a communication demodulation envelope detector in the rectifier harmonic compensation network senses the high-low level voltage of the primary communication modulation.
The invention provides a magnetic resonance electric energy transmission and communication system, which realizes a signal and energy simultaneous transmission integrated system. The direct current power supply drives the inverter to generate high-frequency sine wave voltage, energy is transferred from the transmitting end to the receiving end through the coupling effect of the primary coil and the secondary coil, the sine wave voltage received by the secondary coil is converted into direct current voltage through the rectifier to supply power for charging or other electric equipment, the resonance state of the harmonic compensation branch is changed by controlling the on-off of the communication modulation switch to input information data, harmonic voltage components are changed, corresponding voltage changes are converted into input information data through the communication demodulation envelope detector, and information transfer is achieved. In the information transmission process, the harmonic low-energy characteristic is used for generating less interference on fundamental wave energy, the information transmission has little influence on energy transmission, the resonant wireless power transmission is adopted, the working frequency of the system is improved, the coil can still realize higher quality factor under the condition of smaller number of turns, the synchronous transmission of information and energy is realized based on the high quality factor, the need of arranging a new information transmission module independently outside an electric energy transmission module is avoided, the cost is saved, and the system is miniaturized.
Drawings
FIG. 1 is an improved high efficiency EF with "forward and reverse" modulation communication 2 An inversion and rectification system;
FIG. 2 shows a high efficiency EF 2 An inversion and rectification system;
FIG. 3 is an improved high efficiency EF with "reverse" modulated communication 2 An inversion and rectification system;
FIG. 4 is an improved high efficiency EF with "forward" modulated communication 2 An inversion and rectification system;
wherein the above figures include the following reference numerals:
choke DC power supply V i Transistor S i Compensation element capacitor C 0 First diode D 1 First compensation capacitor C 1 Load capacitor C L Load resistor R L Primary series inductance L p Primary series capacitor C p Primary series resistance R p Secondary series inductance L s Secondary series capacitor C s Secondary series resistance R s Second inductance L 2 A second capacitor C 2 Communication modulation switch S s Secondary communication modulation node TX 1 Primary communication modulation node TX 2 Second diode D 2 A first voltage dividing resistor R 1 Second voltage-dividing resistor R 2 Reverse communication demodulation output port RX 1 The forward communication demodulation output port RX2, the output load voltage Vo, the coil coupling coefficient k.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The output of the high-frequency inverter of the wireless power transmission system contains a large amount of rich harmonic waves besides the fundamental wave, the harmonic waves are sine wave components similar to the fundamental wave, and compared with the fundamental wave components, the harmonic wave components have the characteristics of high frequency and low energy, and the characteristics are very in line with the characteristics of information transmission. The high frequency characteristic increases the rate of information transfer and the low energy characteristic reduces the interference of information transfer with fundamental frequency energy transmission. Therefore, the invention is based on the wireless power transmission system signal and energy simultaneous transmission integrated design, avoids the need of independently arranging a new information transmission module besides the power transmission module, saves the cost and lays a foundation for the miniaturization of the system.
The invention provides a magnetic resonance electric energy transmission and communication system for realizing signal and energy simultaneous transmission integrated design, which has the key core technology that a communication modulation switch S in a harmonic compensation network s And a communication demodulation envelope detector. TX (transmission x) 1 With TX (transmit x) 2 The communication demodulation envelope detector can detect the high-low level voltage conversion in the on/off modulation by controlling the on/off of the harmonic compensation network through the high-low level voltage, and can meet the requirement of improved high-efficiency EF with positive and negative modulation communication 2 An inversion and rectification system.
Fig. 1 is a schematic diagram of a magnetic resonance power transmission and communication system according to the present invention, including an inverter, a rectifier, a coupling coil, a harmonic compensation network, a communication modulation switch, and a communication demodulation envelope detector;
the dc power supply drives the inverter to generate a high-frequency sine wave voltage, and energy is supplied from the transmitting terminal (primary coil L p Left circuit) to the receiving end (secondary coil L s The right circuit), the sine wave voltage received by the secondary coil is converted into direct current voltage through a rectifier to supply power for charging or other electric equipment.
EF adopted by the invention 2 Class inverter and EF 2 The structure of the rectifier-like circuit is provided with F-type harmonic compensation branches, input information data are a group of voltage waveforms of high-low level combinations corresponding to bit codes, when data 1 is input, the voltage is high level, a switch is conducted, and the harmonic compensation branches resonate at a second harmonic frequency point; when the data 0 is input, the voltage is low level, the switch is opened, the harmonic compensation branch is opened, and the on-off of the communication modulation switch is controlled according to the input of the data to correspondingly change the resonance state of the harmonic compensation branch, so that the harmonic voltage component is changed.
When communication modulation switch S s When in the receiving end circuit, for reverse information transmission, input information controls the harmonic compensation branch in the receiving end circuit to change the resonance voltage of the harmonic branchThe amplitude of the sine wave voltage on the coil (secondary coil) of the receiving end is changed, and the amplitude of the sine wave voltage on the coil of the transmitting coil (primary coil) is correspondingly changed by the coupling action in the same time, so that the amplitude of the voltage on the harmonic compensation branch of the transmitting end is changed. And a communication demodulation envelope detector is added on a harmonic compensation branch of the transmitting end to demodulate the voltage amplitude change of the harmonic compensation circuit, wherein the interval with high amplitude is data 1, and the interval with low amplitude is data 0.
When communication modulation switch S s When in the transmitting end circuit, the communication demodulation envelope detector is used for forward information transmission, and the principle is consistent with that of reverse information transmission. When communication modulation switch S s When in the transmitting end circuit, for forward information transmission, input information controls a harmonic compensation branch in the transmitting end circuit, and the resonance voltage component of the harmonic branch is changed, so that the sine wave voltage amplitude on a transmitting end coil (primary coil) is changed, and in the same time, a receiving coil (secondary coil) correspondingly changes the sine wave voltage amplitude on the coil through coupling action, and then the voltage amplitude on the harmonic compensation branch of the receiving end is changed. And a communication demodulation envelope detector is added on a harmonic compensation branch of the receiving end to demodulate the voltage amplitude change of the harmonic compensation circuit, wherein the section with high amplitude is data 1, and the section with low amplitude is data 0. In the process, due to the low energy characteristic of the harmonic wave, only less interference is generated on fundamental wave energy, and the information transmission has little influence on energy transmission.
EF adopted by the invention 2 Class inverter and EF 2 The class-F harmonic compensation branch circuits are arranged on the class-F rectifier circuit structure, the input information data correspondingly changes the resonance state of the harmonic compensation branch circuits by controlling the on-off of the communication modulation switch, so that the harmonic voltage component is changed, the sine wave voltage on the secondary (primary) coil is further correspondingly changed, the same harmonic voltage change can be sensed through the coupling action on the primary (secondary) coil, and the corresponding voltage change is converted into the corresponding voltage change through the communication demodulation envelope detectorAnd information data is input, so that information transmission is realized. In the process, due to the low energy characteristic of the harmonic wave, only less interference is generated on fundamental wave energy, and the information transmission has little influence on energy transmission.
Wherein the inverter comprises a choke DC power supply V i Transistor S i Compensation element capacitor C 0 The compensation element capacitor C 0 To compensate the transistor S i An output capacitance;
wherein the rectifier comprises a first diode D 1 First compensation capacitor C 1 A direct current filter network; the first compensation capacitor C 1 To compensate the first diode D 1 An output capacitor, the DC filter network comprises a load capacitor C L Load resistor R L ；
The coupling coil comprises a primary coil and a secondary coil, the primary coil comprises a primary series inductance L p Primary series capacitance C p And primary series resistance R p Wherein the primary series resistance R p Parasitic resistance of the primary coil, the secondary coil comprises a secondary series inductance L s Secondary series capacitor C s And a secondary series resistance R s Wherein the secondary series resistance R s Parasitic resistance for the secondary coil; vo is the load R L The direct current output voltage value at two ends, k is the primary coil L p With secondary coil L s The coupling coefficient k is related to the position information such as the number of turns, the size, the spacing and the like of the coils, namely the larger the number of turns, the larger the size and the smaller the spacing, and the larger the coupling coefficient k.
The harmonic compensation network comprises a second inductance L 2 A second capacitor C 2 The second inductance L 2 And the second capacitor C 2 The series resonance is at the second harmonic frequency point. The harmonic compensation network is EF 2 The existing F-type branch in the class inversion (rectification) circuit is tuned on the second harmonic frequency point of the fundamental frequency, and the second harmonic component generated by the high-frequency inverter is filtered out, so that the modulation and demodulation are facilitated. The rest of the higher harmonic components have lower energy and do not conform toMinimum power requirements for information transfer.
The communication modulation switch S s (TX 1 Modulating a node for secondary communication, TX 2 As primary communication modulation node), the input information data correspondingly changes the resonance state of the harmonic compensation branch by controlling the on-off of the communication modulation switch, so that the harmonic voltage component changes, the sine wave voltage on the secondary (primary) coil correspondingly changes, and the corresponding harmonic voltage change is transmitted to the primary (secondary) coil through the coupling effect. Note that TX is a control communication modulation switch S s The communication modulation switch is a MOSFET, and the gate of the MOSFET is connected to TX, which provides a voltage value that satisfies the ON or off of the MOSFET, i.e. the modulation communication requirement of ON-off keying (OOK) is satisfied by controlling the gate of the communication modulation switch MOSFET by TX.
The communication demodulation envelope detector comprises a second diode D 2 And a voltage dividing network formed by a second voltage dividing resistor R 2 And a first voltage dividing resistor R 1 Composition; RX (x) 1 Demodulation of output ports for reverse communication, RX 2 The output port is demodulated for forward communication.
When TX 1 With TX (transmit x) 2 Under the high-level voltage control condition, the communication modulation switch S s The working state is an "on" state, the second inductance L 2 And a second capacitor C 2 The series resonance is at the second harmonic frequency point, the compensation inverter and rectifier second harmonic, the equivalent working principle diagram is shown in figure 2, namely the equivalent circuit has high efficiency EF 2 The quasi-inversion and rectification functions are single.
When TX 2 Under high level voltage control conditions, TX 1 Communication demodulation envelope detector RX in inverter harmonic compensation network through high-low level modulation rectifier second harmonic compensation network 'on/off' of data stream 1 Perceptual TX 1 The equivalent working principle diagram of the high and low level voltages is shown in figure 3, i.e. the equivalent circuit has high efficiency EF 2 Class inversion and rectification, and its additional "reverse" communication function (i.e. TX 1 →RX 1 )。
When TX 1 Under high level voltage control conditions, TX 2 High-low level modulation inverter second harmonic compensation network on/off, communication demodulation envelope detector RX in rectifier harmonic compensation network 2 Perceptual TX 2 The equivalent working principle diagram of the high and low level voltages is shown in figure 4, i.e. the equivalent circuit has high efficiency EF 2 Class inversion and rectification, and its additional "forward" communication function (i.e. TX 2 →RX 2 )。
The invention provides a magnetic resonance electric energy transmission and communication system, which realizes a signal and energy simultaneous transmission integrated system. The direct current power supply drives the inverter to generate high-frequency sine wave voltage, energy is transferred from the transmitting end to the receiving end through the coupling effect of the primary coil and the secondary coil, the sine wave voltage received by the secondary coil is converted into direct current voltage through the rectifier to supply power for charging or other electric equipment, the resonance state of the harmonic compensation branch is changed by controlling the on-off of the communication modulation switch to input information data, harmonic voltage components are changed, corresponding voltage changes are converted into input information data through the communication demodulation envelope detector, and information transfer is achieved. In the information transmission process, the harmonic low-energy characteristic is used for generating less interference on fundamental wave energy, the information transmission has little influence on energy transmission, the resonant wireless power transmission is adopted, the working frequency of the system is improved, the coil can still realize higher quality factor under the condition of smaller number of turns, the synchronous transmission of information and energy is realized based on the high quality factor, the need of arranging a new information transmission module independently outside an electric energy transmission module is avoided, the cost is saved, and the system is miniaturized.
The embodiments of the invention described above are combinations of elements and features of the invention. Unless otherwise mentioned, the elements or features may be considered optional. Each element or feature may be practiced without combining with other elements or features. In addition, embodiments of the invention may be constructed by combining some of the elements and/or features. The order of operations described in embodiments of the invention may be rearranged. Some configurations of any embodiment may be included in another embodiment and may be replaced with corresponding configurations of another embodiment. It will be obvious to those skilled in the art that claims which are not explicitly cited in each other in the appended claims may be combined into embodiments of the present invention or may be included as new claims in a modification after submitting the present invention.
It should also be noted that, in this document, relationships such as first and second, etc. are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A magnetic resonance electric energy transmission and communication system is characterized by comprising an inverter, a rectifier, a coupling coil, a harmonic compensation network, a communication modulation switch and a communication demodulation envelope detector;
the DC power supply drives the inverter to generate high-frequency sine wave voltage, energy is transferred from the transmitting end to the receiving end through the coupling action of the primary coil and the secondary coil, and the sine wave voltage received by the secondary coil is converted into DC voltage through the rectifier to supply power for equipment.
2. The magnetic resonance power transmission and communication system according to claim 1, wherein the inverter is EF 2 Class inverter, the rectifier is EF 2 And the inverter and the rectifier are structurally provided with F-type harmonic compensation branches.
3. The system according to claim 2, wherein the input information data is converted into the input information data by controlling the on-off of the communication modulation switch to change the resonance state of the harmonic compensation branch, so that the harmonic voltage component is changed, and the sine wave voltage on the secondary/primary coil is further changed correspondingly, and the same harmonic voltage change can be sensed by coupling acting on the primary/secondary coil, and the corresponding voltage change is converted into the input information data by the communication demodulation envelope detector.
4. The magnetic resonance power transmission and communication system according to claim 1, wherein the inverter comprises a choke dc power supply, a transistor, and a compensation element capacitor, the compensation element capacitor being the compensation transistor output capacitor.
5. The magnetic resonance power transmission and communication system according to claim 1, wherein the rectifier comprises a first diode, a first compensation capacitor and a dc filter network.
6. The magnetic resonance power transmission and communication system according to claim 1, wherein the coupling coil comprises a primary coil and a secondary coil, the primary coil comprising a primary series inductance, a primary series capacitance and a primary series resistance, the secondary coil comprising a secondary series inductance, a secondary series capacitance and a secondary series resistance.
7. The magnetic resonance power transmission and communication system according to claim 1, wherein the harmonic compensation network comprises a second inductor and a second capacitor, and the second inductor and the second capacitor are in series resonance at a second harmonic frequency point.
8. The magnetic resonance power transmission and communication system according to claim 1, wherein the communication demodulation envelope detector comprises a second diode and a voltage divider network.
9. The magnetic resonance power transmission and communication system according to claim 1, further comprising a primary communication modulation, a secondary communication modulation, a forward communication demodulation output port, a reverse communication demodulation output port.
10. The magnetic resonance power transmission and communication system according to claim 1, characterized in that it performs the following method when the system is in operation:
when the secondary communication modulation node and the primary communication modulation node are under the high-level voltage control condition, the working state of the communication modulation switch is in an on state, the series resonance of the second inductor and the second capacitor is in a second harmonic frequency point, and the second harmonic of the inverter and the rectifier is compensated;
when the primary communication modulation node is under the control condition of high-level voltage, the secondary communication modulation node is switched on/off through a high-low level modulation rectifier second harmonic compensation network of a data stream, and a communication demodulation envelope detector reverse communication demodulation output port in an inverter harmonic compensation network senses the high-low level voltage of the secondary communication modulation;
when the secondary communication modulation node is under the control condition of high-level voltage, the high-low level modulation inverter second harmonic compensation network of the primary communication modulation node is turned on/off, and a forward communication demodulation output port of a communication demodulation envelope detector in the rectifier harmonic compensation network senses the high-low level voltage of the primary communication modulation.
CN202310829577.2A 2023-07-07 2023-07-07 Magnetic resonance electric energy transmission and communication system Pending CN116760203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310829577.2A CN116760203A (en) 2023-07-07 2023-07-07 Magnetic resonance electric energy transmission and communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310829577.2A CN116760203A (en) 2023-07-07 2023-07-07 Magnetic resonance electric energy transmission and communication system

Publications (1)

Publication Number Publication Date
CN116760203A true CN116760203A (en) 2023-09-15

Family

ID=87951328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310829577.2A Pending CN116760203A (en) 2023-07-07 2023-07-07 Magnetic resonance electric energy transmission and communication system

Country Status (1)

Country Link
CN (1) CN116760203A (en)

Similar Documents

Publication Publication Date Title
CN104247206B (en) Electrical power transmission system
EP3164926B1 (en) Wireless power transfer systems using load feedback
US10141769B2 (en) Wireless power transfer system
CN111969731B (en) Full-duplex WPT energy signal parallel transmission system based on bilateral LCC
CN108512315B (en) Injection type wireless energy and information synchronous transmission circuit based on bilateral LCC structure
CN114825656B (en) Wireless power and data synchronous transmission system and data modulation method
CN111987813B (en) Synchronous full-duplex communication wireless power transmission system based on single-coil coupling mechanism
KR102008810B1 (en) Wireless power transmitting apparatus and method
US9577438B2 (en) Wireless power system
CN104981964A (en) Wireless power transmitting apparatus and method thereof
Zan et al. Performance comparisons of synchronous and uncontrolled rectifiers for 27.12 MHz wireless power transfer using CMCD converters
CN114421646A (en) Magnetic coupling wireless energy signal synchronous transmission system based on hybrid modulation
CN113013999B (en) Wireless electric energy and data synchronous transmission system based on direct current ripple modulation
CN115360831B (en) Apparatus, control circuit and adaptive control method for wireless power receiver
CN111404288A (en) Wireless charging equipment
CN116760203A (en) Magnetic resonance electric energy transmission and communication system
CN204334131U (en) A kind of electric energy transmitting terminal and wireless electric energy transmission device
CN115833411A (en) Apparatus for wireless power reception, control circuit and communication method of transmission
CN114944710A (en) Wireless charging device without communication and cascade DC-DC converter
CN113489339A (en) Hybrid modulation dual-output DC-DC converter and control method thereof
Nagashima et al. Inductively coupled wireless power transfer with class-DE power amplifier
CN111711283A (en) Remote power supply network
CN106921218A (en) Electric energy transmitting terminal and apply its wireless electric energy transmission device
Yang et al. Design of a wireless power modulator for wireless power transfer systems
CN210806860U (en) Wireless power transmission system with constant voltage output characteristic

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination