RU2473160C2 - Method and device for electrical energy transmission - Google Patents

Method and device for electrical energy transmission Download PDF

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RU2473160C2
RU2473160C2 RU2009144909/07A RU2009144909A RU2473160C2 RU 2473160 C2 RU2473160 C2 RU 2473160C2 RU 2009144909/07 A RU2009144909/07 A RU 2009144909/07A RU 2009144909 A RU2009144909 A RU 2009144909A RU 2473160 C2 RU2473160 C2 RU 2473160C2
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energy
electric
transmitting
pipe
electrical
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RU2009144909/07A
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RU2009144909A (en
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Владимир Захарович Трубников
Алексей Иосифович Некрасов
Дмитрий Семенович Стребков
Евгений Иванович Харагезов
Владимир Александрович Королев
Антон Алексеевич Некрасов
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Российская академия сельскохозяйственных наук Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Российской академии сельскохозяйственных наук (ГНУ ВИЭСХ Россельхозакадемии)
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Abstract

FIELD: electricity.
SUBSTANCE: between a source and a receiver of electric energy an energy-conducting channel is created in a steel pipe by installation of transmitting and receiving resonance systems on it with electric capacitance covers. Using the transmitting resonance system, resonance oscillations of an electric field are excited in the pipe wall and near its surface in the range of 0.3÷300 kHz, and the field is orthogonally aligned relative to the pipe axis, a vortex magnetic field is induced in the pipe wall and near its surface, electromagnet energy is transmitted along the pipe, it is received in a receiving resonance system with electric capacitance covers, and power is produced for electric loads. The device for transfer of electric energy comprises an energy-conducting steel pipe with receiving and transmitting resonance systems arranged on it with electric capacitance covers. The transmitting resonance system is connected with a source of electric energy via a generator of higher frequency current, and the receiving system with electric capacitance covers is connected via a converter with an electric energy receiver.
EFFECT: reduced costs for electric energy transfer, higher efficiency factor.
7 cl, 6 dwg

Description

The invention relates to the field of electrical engineering, in particular to methods and devices for transmitting electrical energy.

A known method and device for transmitting electricity in a closed circuit, consisting of two or more wires, transformer substations and power lines (Power transmission of alternating and direct current. Electrical reference book. - M .: Enegroatomizdat, 1988, s.337-352).

The disadvantages of this method are losses in the lines, comprising from 5% to 20%, depending on the length of the power lines, and the high cost of the equipment. In this case, the circuit connecting the energy source and the load must necessarily be a closed loop.

A known method of powering electrical devices using an alternating voltage generator connected to a consumer, in which the voltage of the generator is supplied to the low-voltage winding of a high-frequency transformer, and one of the terminals of the high-voltage winding is connected to one of the input terminals of the electrical device, in this case, resonant oscillations are established by changing the frequency of the generator in the formed electric circuit.

A device that implements this method is an AC voltage source with an adjustable frequency, a high-frequency transformer, one output of the high-voltage section of which is isolated, and the second is designed to supply energy to the consumer (RF patent No. 2108649, 1998, S. Avramenko, Power supply method for electrical devices and device for its implementation).

A disadvantage of the known method is the need to use lines for transmission of electricity from poles, insulators, wires or cable, which increases the cost of electricity transmission.

Another disadvantage is the inability to directly use this method and device for the direct power supply of moving electric vehicles: cars, tractors.

A known method of transmitting electrical energy by creating high-frequency resonant oscillations in a circuit consisting of a high-frequency generator and two step-down and step-up high-frequency Tesla transformers, transmission of high-voltage potential and electric energy through a single-wire line to a step-down Tesla transformer, lowering the potential of its high-voltage output and transmission energy load (RF patent №2255406, 2003, Strebkov D.S., Avramenko S.V., Nekrasov A.I., Method and device for transmitting electric energy gii).

The disadvantage of this method is the need for energy transfer of the transmitting Tesla high-frequency transformer to two electrically different energy carriers (a single-conductor line and ground) or to one that is electrically isolated from the ground and under a high electric potential of a single-conductor line, which requires the use of supports, insulators, wires.

A known method and device for transmitting electrical energy without metal wires using transport pipelines with a liquid or gaseous substance moving along them as a conductive channel. In this case, an electrically conductive channel is formed from the substance in the liquid, solid or gaseous phase between the source and the receiver of electrical energy. In the conductive channel, electromagnetic oscillations of the electric field between the substance in the insulating sheath and the substance surrounding the sheath are generated, while due to resonant vibrations they create voltage antinodes in the channel, and the channel electric field energy is converted into active energy for the consumer (RF Patent No. 2172546, 2000. Strebkov D.S., Avramenko S.V. Method and device for the transmission of electrical energy).

The disadvantages of this method are the necessity of forming a conductive channel isolated from the environment, as well as the use of an electrically high-strength material to create an electrically insulating shell of the conductive channel, because the intensity of electric power transmission is directly proportional to the square of the voltage in the antinode of the voltage excited in the conductive channel.

Known methods and devices for providing remote transmission of telemetry data during drilling operations, using electric and magnetic fields in the environment, formed by cylindrical or toroidal coils located on the drill string (US Pat. US 6,445,307 B1, 09/03/2002. Drill string telemetry; Pat. U.S. 4,725,837, 02.16.1988. Toroidal coupled telemetry apparatus). The power of the information transferring fields is sufficient for high-quality information transfer in a conductive medium (EP 0699822 A2, 03/06/1996. A well data telemetry system).

The disadvantages of the known methods for transmitting electric energy are the small amount of transmitted power, large losses and low efficiency of the transmission of electric energy.

The objective of the invention is the creation of a method and device for transmitting electric energy using uninsulated steel or cast iron pipelines as metal conductors, reducing the cost of electric power transmission by eliminating such power line elements as wires, insulators, cables, as well as increasing the efficiency of electric power transmission .

A positive result is achieved by the fact that in the method of transmitting electric energy, including the transmission of electric energy from an electric energy source to an electric energy receiver, an energy-conducting channel is created in the steel pipe between the source and the electric energy receiver by placing on it a transmitting and receiving resonant systems with electric capacitive plates, Using a transmitting resonant system, electric oscillations in the pipe wall and at its surface in the range 0.3–300 kHz are excited I, orthogonally oriented with respect to the axis of the pipe, induce a vortex magnetic field in the pipe wall and near its surface, transmit electromagnetic energy along the pipe, receive it in a receiving resonant system with electrical capacitive plates and receive electricity that is used to power electrical consumers, or converted into mechanical or thermal energy in any known manner.

In an embodiment of the method, an energy-conducting channel is created in an insulated or rotating steel pipe, while the transmitting and receiving resonant systems with electrical capacitive plates are installed on the insulation layer or at a distance from the pipe that does not impede its rotation and the passage of electromagnetic energy.

In another embodiment of the method, an energy-conducting channel is created in a steel pipe, while a transmitting resonant system with electric capacitive plates is installed in the middle of the steel pipe, and receiving resonant systems with electric capacitive plates are installed on this pipe on both sides of the transmitting resonant system.

In another embodiment of the method, the receiving resonant systems with electrical capacitive plates are installed in the grooves of the couplings between the two pipe sections together with the electrical receiver when installing the next section of the drill string, casing or pipe string.

A device for transmitting electric energy comprises an energy-conducting steel or cast-iron pipe with transmitting and receiving resonant systems with electric capacitive plates placed on it, while the transmitting system is connected to a source of electric energy through a high-frequency current generator in the range 0.3–300 kHz, and the receiving energy electromagnetic field, a resonant system with electrical capacitive plates is connected through a converter to a receiver of electrical energy.

In an embodiment, the device for transmitting electrical energy comprises an energy-conducting rotating steel or cast-iron pipe with transmitting and receiving resonant systems with electrical capacitive plates that do not interfere with its rotation.

In another embodiment of the device for transmitting electrical energy, various steel or cast iron metal structures are used in the form of a rail, a beam, a rod, a corner, a strip, an I-beam and other profiles of rolled steel, providing the possibility of orthogonal placement of electrical capacitive plates for excitation, transmission and reception electromagnetic energy flow.

The used electrical capacitive plates are made insulated, fit snugly to the energy-conducting structure and repeat its configuration at the installation site, and also do not impede the implementation of the main functional tasks of the structure.

The invention is illustrated in figures 1-6.

Figure 1 presents a diagram of a device for implementing the proposed method.

The device contains a power source 1 connected to a high-frequency current generator 2, to which a transmitting resonant electric capacitive excitation system 3 is connected, consisting of two electro-capacitive plates 4 oppositely placed on a steel pipe and a pipe section between them, designed to excite an electric field 5. The time-varying electric field 5 creates in the walls of the pipe 8 and on its surface a time-varying vortex magnetic field 6. As a result of the interaction, the variables in time of magnetic 6 and electric 5 fields, a flow of electromagnetic energy 7 occurs, which is transmitted along the steel pipe 8 to the receiving resonance system 9 with electrical capacitive plates 10 connected to the transducer 11, where the electromagnetic energy is converted back into electrical energy of the required standard for supplying the load 12 .

To explain the proposed method in figure 2 and figure 3 schematically shows the electric field 5 and the magnetic field 6 in the steel pipe and near its surface in the area of the placement of electrical capacitive plates 4 of the transmitting resonant system 3.

Figure 2 presents the cross section of the steel pipe 8 with the electrical capacitive plates 4 of the resonant excitation system 3 located on it, the electric field lines 5 of the electric field and the vortex magnetic field 6, and the electromagnetic energy flow lines 7 transmitting energy along the steel pipe 8.

Figure 3 presents a longitudinal section of a steel pipe 8 with electrical capacitive plates 4 of the resonant excitation system 3 and excited in this section of the pipe by the lines of force of the electric field 5, the vortex magnetic field 6 and the lines of the flow of electromagnetic energy 7, transmitting energy along the steel pipe 8 to the energy receiver .

The method of power transmission is as follows.

Electric energy from source 1 is fed to a high-frequency current generator 2, which provides a high-frequency current of 0.3 ÷ 300 kHz with a transmitting resonant system 3, consisting of two electrical capacitance excitation plates 4, create a vortex electric field 5 variable in time with a vortex time-variable 5 magnetic field 6, receive a flow of electromagnetic energy 7, transfer energy along a steel pipe 8, receive on another section of the pipe 8 with a receiving resonant system 9, consisting of two electrical capacitive regions dock 10, carry out the inverse transformation of electromagnetic field energy into electricity of the required standard in the converter 11 and serves the load 12.

The electric field is excited by a transmitting resonant system 3 with electrical capacitive plates 4 fed by an electric energy generator 2 at the resonant frequency of the system. Inside and outside the steel pipe, around the power lines of a time-varying electric

Figure 00000001
field 5 induces a time-varying vortex magnetic field 6 with induction
Figure 00000002
. The presence of time-varying electric field 5 with intensity
Figure 00000003
and orthogonal to it time-varying magnetic field 6 with intensity
Figure 00000004
generates a flow of electromagnetic energy moving along the steel pipe
Figure 00000005
. The flux density of electromagnetic energy is determined by the Umov-Poynting vector
Figure 00000006

The receiving resonant system is structurally identical to the transmitting system, due to which, being in the flow of electromagnetic energy, it generates an emf at the output terminals, which is converted and used to power electrical appliances, to produce mechanical or thermal energy.

The high frequency current generator 2, depending on the transmitted power, can be either in the form of a generator directly supplying the transmitting system, or in the form of a generator with a matching transformer, for example, in the form of a Tesla transformer. Resonance systems with electrical capacitive plates, designed to receive electrical energy, are installed on a steel pipe in places with a maximum value of the amplitude of the electromagnetic wave, including pipes having any insulation or protective coating.

Figure 4 presents the layout on the steel pipe 8 of the transmitting resonant system 3 with electrical capacitive plates 4, while the pipe has the ability to move along its axis or rotates around it. In this case, the transmitting resonant system 3 with electrical capacitive plates 4 is set so as not to impede the movement or rotation of the pipe 8 and the passage of the electric field necessary for the transfer of energy.

Figure 5 presents the layout on a steel pipe 8 of the receiving resonant systems with electrical capacitive plates 10 on both sides of the transmitting resonant system with electrical capacitive plates 4, generating a flow of electromagnetic energy in both directions.

As energy-conducting pipes, steel or cast-iron pipes of water, gas or oil pipelines, as well as other pipelines with or without insulation or protective coating, which, due to technological or other necessity, are located in the ground or on its surface, in plain or sea, can be used water or other media. Drill rods connected to a rotating string-harness or casing of artesian wells can also be used as energy-transmitting pipes. On rotating or moving in various environments, steel or cast iron pipes, transmitting and receiving resonant systems of electrical capacitive plates are installed in the grooves of the couplings in conjunction with the power detector.

Figure 6 presents the possible options for use as an energy-conducting channel cross-sectional profiles of various steel structures - rail 13, beam 14, round rod 15 with placed on them electro-capacitive plates 4 and 10.

The method and device can be primarily used to power the electrochemical protection devices of gas pipelines, drill string sensors and other devices for monitoring and transmitting telemetry and other information in piping and other systems.

Claims (7)

1. A method of transmitting electric energy, including the transmission of electric energy from an electric energy source to an electric energy receiver, characterized in that an energy-conducting channel is created in the steel pipe between the source and the electric energy receiver by placing on it a transmitting and receiving resonant systems with electric capacitive plates, with Using a transmitting resonant system, electric field oscillations are excited in the pipe wall and at its surface in the range of 0.3 ÷ 300 kHz, orthogonally relative to the axis of the pipe, a vortex magnetic field is induced in the pipe wall and near its surface, electromagnetic energy is transmitted along the pipe, it is received in a receiving resonant system with electric capacitive plates and electricity is obtained, which is used to power electric consumers, or converted into mechanical or thermal energy in any known way.
2. The method of transmitting electrical energy according to claim 1, characterized in that the transmitting and receiving resonant systems with electrical capacitive plates are installed on the insulation layer or at a distance from the pipe that does not impede its rotation and passage of electromagnetic energy.
3. The method of transmitting electrical energy according to claim 2, characterized in that the receiving resonant systems with electrical capacitive plates are installed in the grooves of the couplings between the two sections of the pipe together with the electrical receiver when installing the next section of the drill string, casing or pipe string.
4. The method of transmitting electric energy according to claim 1, characterized in that the transmitting resonant system with electric capacitive plates is installed in the middle of the pipe, and the receiving resonant system with electric capacitive plates is installed on the pipe on both sides of the transmitting resonant system.
5. A device for transmitting electrical energy, containing a source and a receiver of electrical energy with a power line, characterized in that the device comprises an energy-conducting steel or cast iron pipe with transmitting and receiving resonant systems with electrical capacitive plates placed on it, while the transmitting system is connected to an electric source energy through a current generator of increased frequency in the range of 0.3 ÷ 300 kHz, and the resonant system receiving electric energy of the electromagnetic field with electric capacitance mi plates connected through a Converter with a receiver of electrical energy.
6. A device for transmitting electrical energy according to claim 5, characterized in that the device comprises an energy-conducting rotating steel or cast-iron pipe and not preventing its rotation by transmitting and receiving resonant systems with electrical capacitive plates.
7. The device according to claim 5, characterized in that the electrical capacitive plates are electrically insulated, fit snugly to the energy-conducting structure and repeat its configuration at the installation site, and also do not impede the implementation of the main functional design tasks.
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