CN112701799A - Electromagnetic coupling energy transmission method and device based on displacement current technology - Google Patents
Electromagnetic coupling energy transmission method and device based on displacement current technology Download PDFInfo
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- CN112701799A CN112701799A CN201911009306.2A CN201911009306A CN112701799A CN 112701799 A CN112701799 A CN 112701799A CN 201911009306 A CN201911009306 A CN 201911009306A CN 112701799 A CN112701799 A CN 112701799A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 34
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- 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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- Engineering & Computer Science (AREA)
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Abstract
The invention provides an electromagnetic coupling energy transmission method and device based on a displacement current technology. The method comprises the following steps: the current loop of at least one of the source end circuit and the load end circuit of the electromagnetic induction coupling circuit contains displacement current components; the nonreciprocal degree of the electromagnetic induction coupling circuit is measured by the difference value of the integral of the dot product of the electric field and the vacuum displacement current density in the interaction space between the source end and the load.
Description
Technical Field
The invention relates to the field of electric power engineering, in particular to an electromagnetic coupling energy transmission method based on a displacement current technology.
The invention relates to the field of electric power engineering, in particular to an electromagnetic coupling energy transmission device based on a displacement current technology.
Background
Maxwell's equations are the basis for electrical engineering and radio electronics, and all current electrical equipment such as motors, transformers, wired and wireless communications, etc. operate on the maxwell's equations. The concept of displacement current or displacement current density is important in maxwell's system of equations. The displacement current density can be further divided into two terms, that is, the displacement current density in vacuum and the dielectric polarization displacement current density. Unlike conduction currents and dielectric polarization displacement current densities, displacement current densities in vacuum are carrier-free, essentially varying electric fields, identical to carrier-based currents only in terms of exciting magnetic fields, and completely different otherwise. At present, great progress is made in the field of realizing nano-generators and wireless power energy transmission by utilizing dielectric polarization displacement current density, but the application of the displacement current density in vacuum in the aspect is not reported at all.
On the other hand, the electric devices for power energy transmission and the like can be generally abstracted into a two-port network, and the linear passive two-port network generally meets the requirement of the reciprocity theorem. Following the casson-form reciprocity theorem, it can be described as: let the space have two sets of source currents J1 and J2, which produce fields E1, H1 and E2, H2, respectively, and for the entire space, the dot product of the source currents J1 and E2 is equal to the integral of the dot product of the source currents J2 and E1. Theories and experiments prove that the presence of displacement currents in vacuum will destroy the reciprocity of the linear passive network, mathematically speaking making the above integrals unequal, the difference reflecting the degree of this irreversibility. The existence of non-reciprocity brings many unique advantages in the aspects of energy coupling and the like of signal transmission processing.
Disclosure of Invention
The present invention is directed to a method and an apparatus for electromagnetic coupling energy transmission based on displacement current technology, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a method for electromagnetic coupling energy transmission based on a displacement current technology comprises the following steps:
the current loop of at least one of the source end circuit and the load end circuit of the electromagnetic coupling circuit comprises a displacement current component;
the non-reciprocity of electromagnetic coupling is realized by utilizing the mutual superposition of the electric field excited by one circuit and the vacuum displacement current density of the other circuit;
the nonreciprocal degree of the electromagnetic coupling circuit is measured by the difference between the source end and the load end of the integral of the dot product of the electric field and the vacuum displacement current density in the interaction space in the above step.
Preferably, the method further comprises:
the source end circuit utilizes a Tesla coil to generate an induced electric field;
the load end circuit utilizes a group of plate capacitors surrounding the axis of a Tesla coil to pick up electromagnetic induction energy, and the axis of the Tesla coil is contained in a symmetrical central plane of two electrode plates of the plate capacitors;
the plate capacitors are connected by way of electromagnetic coupling to expand the total energy output.
Preferably, the method further comprises: the inductor is connected in series in the panel capacitor circuit to realize series resonance and improve energy coupling efficiency.
An electromagnetic coupling energy transmission device based on a displacement current technology comprises a Tesla coil, a group of flat capacitors and a flat capacitor output electromagnetic coupling device;
tesla coil: for generating a ring-shaped induced electric field;
a set of plate capacitors: the electromagnetic energy coupling device is used for picking up the energy of the annular induced electric field and realizing the electromagnetic energy coupling from the Tesla coil to a load end;
the output electromagnetic coupling device of the panel capacitor: for coupling the energy of the multiple plate capacitors together to expand the energy output.
Preferably, the device further comprises an inductor;
an inductor: for producing series resonance of the plate capacitors.
Drawings
FIG. 1 is a diagram of a real-time mode of the present invention;
in the figure: 1. a Tesla coil; 2: a set of plate capacitors; 3: an inductor; 4: the plate capacitor outputs an electromagnetic coupling device.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
in view of the deficiencies of the prior art, the present invention provides a method and an apparatus for electromagnetic coupling energy transmission based on displacement current technology, and the implementation cost is low.
The aim of the invention is achieved by the following technical measures:
first, the induced electric field generated by the source end is made to coincide as much as possible with the direction of the displacement current density in the vacuum of the load end.
In fig. 1, the induced electric field at the source end is generated by a tesla coil, and fig. 1 is illustrated in an axial view from the inductance of the tesla coil. The main reasons for selecting the tesla coil as the source end are as follows: tesla coils can generate extremely high induced voltages and therefore they can also generate large induced electric fields. At the load end, a group of plate capacitors is circumferentially arrayed around the Tesla coil by taking the axle center of the Tesla coil inductance as a center, and in order to enable the vacuum displacement current density of each plate capacitor to be overlapped with the direction of an induced electric field of the Tesla coil as much as possible, the symmetrical center planes of two polar plates of each plate capacitor contain the axis of the Tesla coil inductance. The purpose of this kind of induced electric field and the displacement current density as much as possible coinciding is to make the absolute value of the integral of their dot product as large as possible and thus to make the nonreciprocity as large as possible. In this embodiment, the current loop of the tesla coil circuit at the source end does not contain a displacement current component, so the non-reciprocity of the whole system is completely determined by the integral of the dot product of the displacement current at the load end and the induced electric field.
And secondly, series inductance is utilized to realize series resonance of the plate capacitor circuit so as to reduce the internal impedance of the circuit and improve the capacity of externally driving a load.
And finally, coupling all the plate capacitor circuits together in an electromagnetic coupling mode, so that the external energy output capacity is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents, and the invention is not to be limited to the embodiments described above, but rather is to be construed in breadth and scope including all those changes and modifications which are within the scope of the appended claims.
Claims (5)
1. A method for electromagnetic coupling energy transmission based on a displacement current technology is characterized by comprising the following steps:
s1: the current loop of at least one of the source end circuit and the load end circuit of the electromagnetic coupling circuit comprises a displacement current component;
s2: the non-reciprocity of electromagnetic coupling is realized by the mutual superposition of the electric field excited by one circuit and the vacuum displacement current density of the other circuit;
s3: the nonreciprocal degree of the electromagnetic coupling circuit is measured by the difference between the source terminal and the load terminal of the integral of the dot product of the electric field and the vacuum displacement current density in the interaction space thereof in the above step S1.
2. The method of claim 1, further comprising:
the source end circuit utilizes a Tesla coil to generate an induced electric field;
the load end circuit utilizes a group of plate capacitors surrounding the axis of a Tesla coil to pick up electromagnetic induction energy, and the axis of the Tesla coil is contained in a central plane between two plates of the plate capacitors;
the plate capacitors are connected by way of electromagnetic coupling to expand the total energy output.
3. The method according to claim 1, 2, characterized in that the method further comprises: the inductor is connected in series in the panel capacitor circuit to realize series resonance and improve energy coupling efficiency.
4. An apparatus for electromagnetic coupling energy transfer based on displacement current technology, the apparatus comprising: a Tesla coil, a set of plate capacitors, and a plate capacitor output electromagnetic coupling device;
tesla coil: for generating a ring-shaped induced electric field;
a set of plate capacitors: the electromagnetic energy coupling device is used for picking up the energy of the annular induced electric field and realizing the electromagnetic energy coupling from the Tesla coil to a load end;
the output electromagnetic coupling device of the panel capacitor: for coupling the energy of the multiple plate capacitors together to expand the energy output.
5. The apparatus of claim 4, further comprising: an inductor;
an inductor: for producing series resonance with the plate capacitor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911009306.2A CN112701799A (en) | 2019-10-23 | 2019-10-23 | Electromagnetic coupling energy transmission method and device based on displacement current technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911009306.2A CN112701799A (en) | 2019-10-23 | 2019-10-23 | Electromagnetic coupling energy transmission method and device based on displacement current technology |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185874A (en) * | 2011-12-28 | 2013-07-03 | 上海辰光医疗科技股份有限公司 | Detuning magnetic resonance radio frequency coil without external direct current circuit |
| US20140265618A1 (en) * | 2013-03-14 | 2014-09-18 | Choon Sae Lee | Device for Collecting Energy Wirelessly |
| CN106253497A (en) * | 2016-08-17 | 2016-12-21 | 桐城市闲产网络服务有限公司 | A kind of micro radio electric energy based on Tesla coil transmission system |
| CN107634587A (en) * | 2017-09-20 | 2018-01-26 | 扬州芯智瑞电子科技有限公司 | A kind of modified form wireless power supply system based on Tesla coil |
| CN108306420A (en) * | 2018-03-14 | 2018-07-20 | 华南理工大学 | A kind of double coupling hybrid wireless electric energy Transmission systems of serial-parallel type |
-
2019
- 2019-10-23 CN CN201911009306.2A patent/CN112701799A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185874A (en) * | 2011-12-28 | 2013-07-03 | 上海辰光医疗科技股份有限公司 | Detuning magnetic resonance radio frequency coil without external direct current circuit |
| US20140265618A1 (en) * | 2013-03-14 | 2014-09-18 | Choon Sae Lee | Device for Collecting Energy Wirelessly |
| CN106253497A (en) * | 2016-08-17 | 2016-12-21 | 桐城市闲产网络服务有限公司 | A kind of micro radio electric energy based on Tesla coil transmission system |
| CN107634587A (en) * | 2017-09-20 | 2018-01-26 | 扬州芯智瑞电子科技有限公司 | A kind of modified form wireless power supply system based on Tesla coil |
| CN108306420A (en) * | 2018-03-14 | 2018-07-20 | 华南理工大学 | A kind of double coupling hybrid wireless electric energy Transmission systems of serial-parallel type |
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Application publication date: 20210423 |