CN111682789A - High-frequency double-E inverter system and method for wireless power transmission system - Google Patents
High-frequency double-E inverter system and method for wireless power transmission system Download PDFInfo
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- 230000009977 dual effect Effects 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 20
- 238000010168 coupling process Methods 0.000 description 20
- 238000005859 coupling reaction Methods 0.000 description 20
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- 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
-
- 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
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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention relates to a high-frequency double-E inverter system and a high-frequency double-E inverter method for a wireless power transmission system, and belongs to the field of power electronic technology. The high-power inversion with the working frequency of 1-7.8 MHz is realized by combining a double E-type inverter with a novel SiC device while the limitation of a traditional wired electric energy transmission mode due to the limitation of a wire is solved. By utilizing a mode of combining the DSP and the CPLD, a high-frequency pulse and drive controller is designed, so that the automatic calibration and tracking of the resonant frequency are realized, and the wireless power transmission is greatly improved in the aspects of distance, efficiency, power, control and the like.
Description
Technical Field
The invention relates to the technical field of power electronics, in particular to a high-frequency double-E inverter system and a high-frequency double-E inverter method for a wireless power transmission system.
Background
The structure of wireless electric energy transmission mainly comprises an inversion link, a transmitting coil, a receiving coil and a rectification link. According to the basic principle of wireless energy transmission, wireless energy transmission can be roughly divided into three types at present, namely: electromagnetic wave radiation type, electric field coupling type, magnetic coupling type. The magnetic coupling type wireless power transmission is divided into an electromagnetic induction type and a magnetic coupling resonance type.
The traditional inversion modes comprise full-bridge inversion, half-bridge inversion and the like, the inversion modes are very common, and the technology is mature. In addition, the power amplifier can also realize an inversion function, wherein the class A, the class B, the class AB and the class C are called traditional power amplifiers, and the class D, the class E and the class F are called switching power amplifiers. Direct current is converted into high-frequency alternating current through an inverter, so that primary side energy is transmitted to a secondary side, and wireless electric energy transmission is realized.
Because the resonant frequency of magnetic coupling resonance wireless power transmission is basically over megahertz, multi-path PWM waveforms need to be generated by half-bridge inversion and full-bridge inversion simultaneously, the accuracy of frequency and phase and the control of dead zones must be ensured by each path of waveforms, and meanwhile, because the number of switching devices is required in the inversion link, the probability of failure is greatly increased. Class a amplifiers have excellent linearity but the theoretical efficiency is only 50% and in practice is generally no more than 25%. In the class B amplifier, when no signal is input, the amplifier consumes almost no power, and the efficiency can reach 78.5%, but the signal amplitude of the amplifier is a little in a nonlinear region. Class C amplifiers typically have a small conduction angle, 100% maximum efficiency, but have zero power and are therefore of no practical interest. The D-type power amplifier has certain tailing overlapping, and efficiency is reduced, so that the D-type switch is suitable for working in occasions with frequency lower than MHz, such as digital sound equipment and the like. The class-E amplifier can adjust the switching frequency to realize soft switching, and the output voltage is a sine half wave. In summary, each amplifier has its own advantages and disadvantages, and cannot satisfy a magnetic coupling resonant wireless power transmission system with a comprehensive power requirement.
Disclosure of Invention
The present invention is directed to a high frequency dual class E inverter system and method for a wireless power transmission system, which overcome the above-mentioned drawbacks of the prior art.
The purpose of the invention can be realized by the following technical scheme:
a high-frequency double-E inverter system for a wireless power transmission system is arranged in the wireless power transmission system and comprises a voltage source VDCSaid voltage source VDCRespectively with the first inductor L1And a second inductance L2Is connected to one end of the first inductor L1The other end of the first switch tube V is respectively connected with the first switch tube Vs1Drain electrode of, first capacitor C1Is connected to one end of the resonant unit, the second inductance L2The other end of the first switch tube and the second switch tube V are respectively connected withs2Drain electrode of the first capacitor C2Is connected with the other end of the resonance unit, the first switching tube Vs1And the second switch tube Vs2Respective source electrode, the first capacitor C1And said second capacitance C2The other ends of the two are connected with the voltage source VDCAre connected with each other.
Further, the resonance unit comprises resonance inductors L connected in series with each otherrAnd a resonance capacitor CrA load resistor R connected to the resonant inductor LrAnd a resonance capacitor CrThe resonant unit passes through the resonant inductor LrAnd said resonant capacitor CrAre respectively corresponding to the first switch tube Vs1And the second switch tube Vs2The respective drains are connected.
Further, the first switch tube Vs1MOSFET switching tubes are adopted.
Further, the second switch tube Vs2MOSFET switching tubes are adopted.
Further, the first switch tube Vs1Is an enhancement N-channel MOSFET switch tube.
Further, the second switch tube Vs2Is an enhancement N-channel MOSFET switch tube.
The invention also provides a high-frequency inversion method based on the high-frequency double-E inverter system for the wireless power transmission system, and the method is used for realizing the high-frequency inversion of the high-frequency double-E inverter systemThe inversion method specifically comprises the following steps: the first switch tube Vs1And the second switch tube Vs2The first inductor L is alternatively conducted to supply power to the load resistor R in the resonance unit at a duty ratio of 50 percent respectively1And the second inductance L2The first capacitor C is used for stabilizing the input current and making the output current be sine wave1And said second capacitance C2The high-frequency double-E type inverter system can enable the wireless power transmission system to carry out power inversion in a specific frequency range by combining with related devices.
Further, the related device is a SiC device.
Further, the specific frequency range is 1 MHz-7.8 MHz.
The invention also provides a frequency modulation method for the high-frequency double-E inverter system for the wireless power transmission system, which specifically comprises the following steps: and a high-speed voltage comparator is adopted to obtain the zero crossing point of the output voltage of the wireless electric energy transmission system, the signal is input to a CPLD for zero-crossing delay calculation and then is subjected to DSP operation closed loop adjustment to ensure that stepless adjustment of frequency is realized under the frequency output of megahertz level, the zero crossing point can be tracked, and the tracking of the soft switching and the resonant frequency of a switching tube in the high-frequency double-E inverter system is realized.
Compared with the prior art, the invention has the following advantages:
(1) the invention mainly applies the double-E inverter to a magnetic coupling resonance type wireless electric energy transmission system, utilizes a DSP and CPLD combined mode, performs closed-loop control and adjustment through the DSP, designs a high-frequency pulse and drive controller, realizes automatic calibration and tracking of resonance frequency, solves the limitation of the traditional wired electric energy transmission mode due to the limitation of wires, greatly improves the distance and efficiency of wireless electric energy transmission, provides meaningful reference for establishing a permanent space station type solar power station, an electrodynamic force unmanned aerial vehicle, a dynamic wireless charging system and the like in the future, and has very great application value.
(2) The invention adopts a magnetic coupling resonance principle, combines a double E-type inverter to generate high-frequency alternating current, and a novel SiC switch device has the advantages of good on-off performance and the like, utilizes DSP to perform closed-loop control, and designs a wireless electric energy transmission system which has longer transmission distance, higher efficiency, better safety, smaller radiation and easier control from the aspects of improving resonance frequency and further increasing transmission power.
(3) Compared with the inversion mode in the traditional wireless power transmission, the invention does not need to generate multiple paths of PWM waveforms simultaneously, has convenient dead zone control, needs fewer switching devices and can realize the function of soft switching, thereby having the advantages of safety, flexibility, convenient control and the like.
Meanwhile, the invention designs a high-frequency pulse and drive controller by performing closed-loop control on the switching frequency of the double-E inverter and utilizing the mode of combining the DSP and the CPLD, thereby realizing automatic calibration and tracking of resonant frequency, realizing controllable high-power inversion and greatly improving the aspects of distance, efficiency, power and the like of wireless electric energy transmission. The double-E inverter has great advantages in the aspects of distance, efficiency, power and the like when being applied to magnetic coupling resonance type wireless power transmission, is a development trend of future power transmission, is a hotspot of current research, has great application value, and has great potential value in the aspects of realizing wireless charging of electric vehicles in the future and household power routers.
Drawings
FIG. 1 is a schematic diagram of a magnetic coupling resonant wireless power transmission system model according to the present invention;
FIG. 2 is a flow chart of frequency adjustment in the present invention;
FIG. 3 is a schematic diagram of a class E inverter model in accordance with the present invention;
fig. 4 is a schematic diagram of a dual class E inverter model in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The objects of the invention are as follows:
in the prior art, a novel SiC device is combined with a double E-type inverter, so that the working frequency can be subjected to high-power inversion at 1-7.8 MHz, and meanwhile, a high-frequency pulse and drive controller is designed by utilizing a mode of combining a DSP (digital signal processor) and a CPLD (complex programmable logic device), so that the automatic calibration and tracking of the resonant frequency are realized, and the magnetic coupling resonant wireless power transmission system with higher efficiency, better safety, smaller radiation and easy energy control is realized.
The technical principle of the invention is as follows:
the magnetic coupling resonance type wireless power transmission technology is a research hotspot in recent years and has great application value in the fields of future power transmission, electric automobiles and the like.
The frequency of the magnetic coupling resonance type wireless power transmission reaches megahertz level, wherein the class E amplifier has simple structure and easy control, and the efficiency can reach 100 percent. The output power of the single-tube E-type power amplifier is limited, and the principle of the double-E-type inverter designed by the invention is consistent with that of a single-tube E-type inverter. The waveform output by the single E-class inverter is half-wave, and the waveform output by the double E-class inverter combines the two E-class inverters to form a full-wave output, so that the output power is improved by 4 times.
Meanwhile, the invention carries out closed-loop control through the DSP, and realizes the design of the switch tube soft switch and the stepless regulation of the resonant frequency.
The specific embodiment is as follows:
1. main idea
The invention relates to a method for applying a double E-type inverter to a magnetic coupling resonant wireless power transmission system, which is shown in figure 1. The principle of magnetic coupling resonant wireless power transmission is that two coils with the same resonant frequency are used, resonant current is introduced into one coil, and the other coil can generate resonant current with the same frequency, so that energy transmission is realized. A magnetic coupling resonance type wireless power transmission device comprises a high-frequency inverter, a resonance coil, impedance matching, high-frequency rectification and other links. One key technology is that the high-power inverter with the working frequency of 1-7.8 MHz is realized by combining a double E-type inverter with a novel SiC device.
As shown in figure 2, the invention adopts a high-speed voltage comparator to obtain the zero crossing point of the voltage, and inputs the signal into the CPLD, the CPLD combines the signal with high-frequency pulse to perform closed-loop control regulation through the DSP, thereby ensuring that stepless regulation of the frequency is realized under the frequency output of megahertz level, tracking the zero crossing point, realizing the soft switching of a switching tube and the tracking of the resonant frequency, and leading the wireless electric energy to have higher transmission efficiency, better safety, smaller radiation and easy energy control.
2. Working principle of high-frequency inversion of double E-type inverters
The basic structure of the class-E amplifier is shown in figure 3, the class-E amplifier is provided with only one switching tube, the structure is simple, the control is easy, when the switching tube is switched on, the power supply charges the inductor, when the switching tube is switched off, the inductor releases energy, the power supply inductor supplies power to a load, and meanwhile, the switching frequency can be adjusted through resonance of the inductor Le and the capacitor Ce to realize soft switching. The voltage output by the class-E inverter is a sinusoidal half wave, while the dual class-E inverter uses two single class-E inverters that are identical, and the phase is shifted by 180 degrees as shown in fig. 4, so that the output waveform is a complete sine. The high-frequency inverter designed by combining the E-type power amplifier has good effect in a magnetic coupling resonant wireless power transmission system.
As shown in FIG. 4, in this embodiment, the system includes a voltage source VDCVoltage source VDCRespectively with the first inductor L1And a second inductance L2Is connected to a first inductor L1The other end of the first switch tube V is respectively connected with the first switch tube Vs1Drain electrode of, first capacitor C1Is connected to one end of the resonant unit, a second inductance L2The other end of the first switch tube and the second switch tube V are respectively connected withs2Drain electrode of the first capacitor C2Is connected with the other end of the resonance unitFirst switch tube Vs1And a second switching tube Vs2Respective source electrode, first capacitor C1And a second capacitor C2The other ends of the two are connected with a voltage source VDCAre connected with each other.
The resonant unit comprises resonant inductors L connected in series with each otherrAnd a resonance capacitor CrThe load resistor R is connected to the resonant inductor LrAnd a resonance capacitor CrThe resonant unit is connected with the resonant inductor LrAnd a resonance capacitor CrRespectively correspond to the first switch tube Vs1And a second switching tube Vs2The respective drains are connected.
First switch tube Vs1And a second switching tube Vs2MOSFET switch tubes are adopted, and the corresponding specific switch types are enhanced N-channel MOSFET switch tubes.
The invention designs a mode of applying a double-E inverter to a magnetic coupling resonant wireless power transmission system, combines the current research hotspot, adopts the double-E inverter to carry out high-frequency inversion, generates high-frequency pulse in a mode of combining DSP and CPLD, and simultaneously carries out closed-loop control and regulation through the DSP, thereby realizing the matching of the primary and secondary resonant frequency and impedance, the efficiency reaches more than 95 percent to the maximum, and the magnetic coupling resonant wireless power transmission inevitably occupies an important position in the future development.
The invention mainly applies the high-frequency double-E inverter to a magnetic coupling resonant wireless power transmission system. The design of the switch tube soft switch and the stepless regulation of the resonant frequency are realized by performing closed-loop control through the DSP. The design has great advantages in both power and efficiency, the design of the key technology has certain advancement, the application is combined with the reality, and the design has great reference significance in related industries.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A high-frequency double-E inverter system for a wireless power transmission system is arranged in the wireless power transmission system and is characterized by comprising a voltage source VDCSaid voltage source VDCRespectively with the first inductor L1And a second inductance L2Is connected to one end of the first inductor L1The other end of the first switch tube V is respectively connected with the first switch tube Vs1Drain electrode of, first capacitor C1Is connected to one end of the resonant unit, the second inductance L2The other end of the first switch tube and the second switch tube V are respectively connected withs2Drain electrode of the first capacitor C2Is connected with the other end of the resonance unit, the first switching tube Vs1And the second switch tube Vs2Respective source electrode, the first capacitor C1And said second capacitance C2The other ends of the two are connected with the voltage source VDCAre connected with each other.
2. The high frequency dual class-E inverter system for a wireless power transmission system according to claim 1, wherein the resonant unit includes resonant inductors L connected in series with each otherrAnd a resonance capacitor CrA load resistor R connected to the resonant inductor LrAnd a resonance capacitor CrThe resonant unit passes through the resonant inductor LrAnd said resonant capacitor CrAre respectively corresponding to the first switch tube Vs1And the second switch tube Vs2The respective drains are connected.
3. The high-frequency dual class-E inverter system for a wireless power transmission system as claimed in claim 1, wherein the first switching tube Vs1MOSFET switching tubes are adopted.
4. A high frequency dual class E inverter system for a wireless power transfer system according to claim 1,it is characterized in that the second switch tube Vs2MOSFET switching tubes are adopted.
5. The high-frequency dual class-E inverter system for a wireless power transmission system according to claim 1, wherein the first switching tube Vs1Is an enhancement N-channel MOSFET switch tube.
6. The high-frequency dual class-E inverter system for a wireless power transmission system according to claim 1, wherein the second switching tube Vs2Is an enhancement N-channel MOSFET switch tube.
7. The high-frequency inversion method of the high-frequency dual class-E inverter system for the wireless power transmission system according to claim 1, wherein the inversion method specifically comprises: the first switch tube Vs1And the second switch tube Vs2The first inductor L is alternatively conducted to supply power to the load resistor R in the resonance unit at a duty ratio of 50 percent respectively1And the second inductance L2The first capacitor C is used for stabilizing the input current and making the output current be sine wave1And said second capacitance C2The high-frequency double-E type inverter system can enable the wireless power transmission system to carry out power inversion in a specific frequency range by combining with related devices.
8. The high-frequency inversion method of the high-frequency double class-E inverter system for the wireless power transmission system according to claim 7, wherein the related devices are SiC devices.
9. The high-frequency inversion method of the high-frequency dual class-E inverter system for the wireless power transmission system according to claim 7, wherein the specific frequency range is 1MHz to 7.8 MHz.
10. A frequency modulation method for a high frequency dual class-E inverter system for a wireless power transmission system according to claim 1, the method comprising: and a high-speed voltage comparator is adopted to obtain the zero crossing point of the output voltage of the wireless electric energy transmission system, the signal is input to a CPLD for zero-crossing delay calculation and then is subjected to DSP operation closed loop adjustment to ensure that stepless adjustment of frequency is realized under the frequency output of megahertz level, the zero crossing point can be tracked, and the tracking of the soft switching and the resonant frequency of a switching tube in the high-frequency double-E inverter system is realized.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653344A (en) * | 2020-12-18 | 2021-04-13 | 华东师范大学 | High-power high-frequency inverter control method based on double E-type structures |
| CN112713822A (en) * | 2020-12-29 | 2021-04-27 | 同济大学 | High-frequency modulation motor position detection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560593A (en) * | 2013-11-07 | 2014-02-05 | 重庆大学 | Electric field coupled power transfer system and control method based on novel topology |
| CN109787500A (en) * | 2019-02-26 | 2019-05-21 | 西安理工大学 | A kind of wide load domain system and its matching process for double E class inverters |
| CN110112836A (en) * | 2019-05-24 | 2019-08-09 | 上海电力学院 | A kind of magnet coupled resonant type wireless transmission system and control method |
-
2020
- 2020-05-20 CN CN202010432055.5A patent/CN111682789A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560593A (en) * | 2013-11-07 | 2014-02-05 | 重庆大学 | Electric field coupled power transfer system and control method based on novel topology |
| CN109787500A (en) * | 2019-02-26 | 2019-05-21 | 西安理工大学 | A kind of wide load domain system and its matching process for double E class inverters |
| CN110112836A (en) * | 2019-05-24 | 2019-08-09 | 上海电力学院 | A kind of magnet coupled resonant type wireless transmission system and control method |
Non-Patent Citations (1)
| Title |
|---|
| 王友情: "磁耦合谐振式大功率无线电能传输系统的设计与实现", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653344A (en) * | 2020-12-18 | 2021-04-13 | 华东师范大学 | High-power high-frequency inverter control method based on double E-type structures |
| CN112713822A (en) * | 2020-12-29 | 2021-04-27 | 同济大学 | High-frequency modulation motor position detection device |
| CN112713822B (en) * | 2020-12-29 | 2023-11-03 | 同济大学 | High-frequency modulation motor position detection device |
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Application publication date: 20200918 |
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