WO2006059445A1 - 電力ケーブル線路 - Google Patents
電力ケーブル線路 Download PDFInfo
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- WO2006059445A1 WO2006059445A1 PCT/JP2005/020017 JP2005020017W WO2006059445A1 WO 2006059445 A1 WO2006059445 A1 WO 2006059445A1 JP 2005020017 W JP2005020017 W JP 2005020017W WO 2006059445 A1 WO2006059445 A1 WO 2006059445A1
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- Prior art keywords
- cable
- superconducting
- power
- core
- line
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/34—Cable fittings for cryogenic cables
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
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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
- H02J4/00—Circuit arrangements for mains or distribution networks not specified as ac or dc
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Definitions
- the present invention relates to a power cable line that performs DC power transmission.
- the present invention relates to a power cable line that can extract branched power supplied to various power devices that are included in the line and used for operation.
- DC transmission enables large-capacity transmission without problems such as AC loss such as dielectric loss, conductor loss due to skin effect, and large current that flows during an accident such as a short circuit.
- DC transmission There are two types of DC transmission: single pole transmission (monopole transmission) and bipolar transmission (bipolar transmission).
- Fig. 11 (A) In unipolar transmission, as shown in Fig. 11 (A), the power cable 100g as the forward path and the power cable 100r as the return path are connected by the leads 104 and 105 via the orthogonal transformation ⁇ 102,103 and closed. Configure the circuit. These transformations 102 and 103 are connected to an AC system such as an AC power source 101 and a load that uses transmission power.
- Fig. 11 (B) In bipolar power transmission, as shown in Fig. 11 (B), a power cable 100p that is a positive line, a power cable 100m that is a negative line, and a power cable 100 ⁇ that is a neutral line are provided in parallel.
- 100p, 100m, and 100n are connected by leads 104p, 104m, 104n, 105p, 105m, and 105n through orthogonal converters 102p, 102m, 103p, and 103m to form a closed circuit.
- These converters 102p, 102m, 103p, and 103m are connected to an AC power source 101 and an AC system connected to a load.
- Power cables used for such DC power transmission are generally oil-impregnated paper cables such as solid cables and OF cables.
- a superconducting cable for direct current power transmission has been proposed (for example, Patent Document 1).
- Patent Document 1 Japanese Published Patent: Japanese Patent Application Laid-Open No. 2003-249130
- an object of the present invention is to provide a power cable line that can easily draw branch power particularly in DC power transmission.
- the present invention achieves the above-described object by superimposing an AC component for branch power on a cable in a cable line that performs DC power transmission, and transmitting the AC component simultaneously with the DC power.
- the power cable line of the present invention includes a power cable that performs DC power transmission and distribution, an AC superimposing unit that superimposes an AC component on the power cable, and a branch power source that extracts power induced by the superimposed AC component from the cable. It is characterized by comprising a part.
- the AC transmission line it is possible to drive the power device using the transmission power of the power cable. Specifically, it is possible to extract branch power by using inductive coupling.
- this method cannot be used in DC transmission because no induced current can be generated. Therefore, according to the present invention, in direct current power transmission, the alternating current component necessary for the branch power to extract the branched power by inductive coupling is transmitted together with the direct current power in the same manner as in alternating current power transmission. Then, the electric power induced by the AC component force is taken out by the branch power supply unit and used as a power source for various power devices used for the operation of the track. With this configuration, the track of the present invention can avoid problems caused by loss of power from an independent power source that does not require a separate system or an independent power source such as a notch or generator. DC power transmission and distribution can be performed stably.
- a normal conducting cable or a superconducting cable can be used.
- normal conductive cables include oil-immersed paper cables such as oil-impregnated paper solid cables, GF cables, and OF cables.
- a known normal conducting cable may be used.
- Solid cables are advantageous in that they have a simple structure and are suitable for long distances, and do not require any oiling equipment.
- OF cables are advantageous in that they are particularly excellent in electrical characteristics without the deoiling phenomenon found in solid cables.
- the GF cable is advantageous in that it does not have the transient hydraulic problem like the OF cable.
- a cable core having a conductor and an electric insulating layer disposed on the outer periphery of the conductor is provided, and a metal sheath or the like is disposed on the outer periphery of the cable core.
- a single-core cable having one such cable core may be used, or a multi-core cable having a plurality of cores may be used.
- the superconducting cable is more preferable because it has a lower resistance than the normal conducting cable and more power can be transmitted.
- a superconducting cable typically has a structure in which a single-core or multi-core cable core is housed in a heat insulation pipe and is cooled by a refrigerant such as liquid nitrogen filled in the pipe.
- the superconducting cable is classified into a low-temperature insulation type and a room-temperature insulation type.
- the cable core includes a former, a first superconducting layer, an electrical insulation layer, A configuration having a superconducting layer can be given.
- the first superconducting layer may be used as a layer through which an outward current flows and the second superconducting layer may be used as a layer through which a return current flows.
- It may be a cable core without the second superconducting layer. That is, the core includes only one superconducting layer.
- the cable core, which has this second superconducting layer, should have a grounding shield layer as a ground potential.
- the cable core may include a former, a first superconducting layer, a heat insulating tube, an electric insulating layer, and a shield layer in order from the center force.
- a plurality of cores are provided as in the case of the core not having the second superconducting layer.
- a superconducting layer of one core may be used as a layer for passing an outward current
- a superconducting layer of another core may be used as a layer for passing a return current.
- a double pipe structure having a vacuum layer between the inner pipe and the outer pipe is generally used.
- the line of the present invention constructs an outgoing line and a return line, and in the case of bipolar power transmission, a positive line, a negative line, and a neutral line are connected.
- a single-core cable or a multi-core cable may be used.
- Table 1 shows examples of specific lines when superconducting cables are used.
- the track can be constructed with a minimum number of cores.
- a single-core cable with a single-core cable core as shown in Table 1 should be used.
- a line may be constructed for each core, a plurality of lines may be constructed with a single cable, a line is constructed with one core, and the remaining cores May be used as a spare line.
- a single-core cable having one cable core as shown in Table 1 may be used. Two power cables with two cores as shown in Table 1 are used. The number of articles can be reduced. Using a three-core cable with a three-core, one cable may be used as a spare line.
- First superconducting layer Outward line First superconducting: Positive line First superconducting layer: Negative line Second superconducting layer: Return line Second superconducting layer: neutral wire Second superconducting layer: neutral wire [0015] Having a second superconducting layer! /
- First superconducting layer Outward line First superconducting: Positive line First superconducting layer: Negative line Second superconducting layer: Return line Second superconducting layer: neutral wire Second superconducting layer: neutral wire [0015] Having a second superconducting layer! /
- a monopolar transmission line is constructed using a cable core, two cores are used, and the first superconducting layer of one core is used as the outgoing line.
- the first superconducting layer of the other core should be the return line.
- a single-core cable in which two cores are housed in separate heat insulation pipes, or a multi-core cable in which two cores are housed in the same heat insulation pipe, may be used.
- a bipolar transmission line is constructed using a cable core that does not have a second superconducting layer
- three cores are used, the first superconducting layer of one core is used as the positive line, and the other core
- One superconducting layer may be a negative line, and the remaining first superconducting layer may be a neutral line.
- a single-core cable in which the three cores are housed in separate heat insulation pipes may be used, or a multi-core cable in which the three cores are housed in the same heat insulation pipe.
- the core that does not have the second superconducting layer is provided with a ground shield layer as a ground potential.
- the superposition of alternating current may be performed on either the first superconducting layer or the second superconducting layer when the cable core having the second superconducting layer is used.
- alternating current is superimposed on the first superconducting layer.
- an electrode layer may be provided coaxially with the conductor with a conductive material such as copper on the outer periphery of the electrical insulating layer, or the second conductive layer.
- a cable (core) having a conductor that carries a return current
- a cable (core) having a conductor that carries a forward current.
- alternating current may be superimposed on either the conductor or the electrode layer.
- AC is superimposed on the conductor.
- More specific line configuration of unipolar power transmission is AC / DC conversion, DC / AC between the power cable (or cable core, the same in the following paragraph) and the power cable as the return path. Connect with lead via transformation to make a closed circuit. Connect an AC power supply to one end of the outgoing cable, connect a load to the other end, and ground one end of the return cable. With this configuration, the load can use the power transmitted by the direct current from the alternating current power supply.
- a more specific line configuration for bipolar transmission is the power cable used as the positive line.
- a closed circuit is formed by connecting the lead via AC / DC converter and DC / AC converter so that the power cable for the cable, the negative line, and the power cable for the neutral line are in parallel.
- an AC power supply to one end of the cable that will be the positive line, and a load to the other end. Also, an AC power supply is connected to one end of the cable serving as the negative line, and a load is connected to the other end. Ground one end of the cable that will be the neutral wire. With this configuration, the load can use the power transmitted by DC as the AC power supply.
- an AC superimposing unit that superimposes an AC component on the line and a branch power supply unit that extracts electric power induced by the AC component are provided.
- the location where the AC superimposing unit is arranged include a location where a direct current is applied to the line, specifically, the vicinity of the AC / DC change to which an AC power supply is connected.
- the superimposed AC power is set to a desired amount of power necessary to drive the power equipment, and is not excessively superimposed so as not to impair DC power transmission. In other words, the superimposed AC power is sufficiently small relative to the DC current transmitted to the load.
- a specific configuration of the AC superimposing unit includes, for example, a configuration including a transformer unit (transformer unit) connected to an AC power source and capable of changing the AC component to a desired size. In this configuration, the power can be adjusted to desired power by the transformer.
- transformer unit transformer unit
- the AC superimposing unit one having a configuration that superimposes an AC component by inductive coupling can be cited.
- a magnetic body arranged on the outer periphery of a cable core (or a lead connecting the cores) included in the power cable and an AC current are connected to an AC power source, and the magnetic body is wound around the magnetic body.
- a configuration comprising a shoreline is available. In this configuration, a magnetic field is applied to the magnetic body when the current from the AC power source flows in the shoreline, and a current flows through the cable core (or the core via the lead) according to the magnetic field and the magnetic permeability of the magnetic body.
- the magnetic material is particularly preferably a ferromagnetic material having a high magnetic permeability, such as a ferrite core.
- the magnetic body is preferably configured in a ring shape by combining a plurality of divided pieces so that it can be easily arranged on the outer periphery of the cable core or lead.
- the shoreline is made of a conductive material.
- a known inductive coupler may be used.
- the branch power supply unit has a configuration using inductive coupling because branch power can be easily taken out.
- a configuration comprising a shoreline through which an alternating current flows.
- a magnetic field is applied to the magnetic material by the alternating current component superimposed on the power cable, and an alternating current flows in the winding according to the magnetic field and the magnetic permeability of the magnetic material, thereby supplying power to various power devices.
- the magnetic material is particularly preferably a ferromagnetic material having a high magnetic permeability, such as a ferrite core.
- the magnetic body is suitably configured in a ring shape by combining a plurality of divided pieces so that it can be easily placed on the outer periphery of the power cable.
- the winding is formed of a conductive material.
- a cable having a layer in which a forward current flows (hereinafter referred to as the forward layer) and a layer in which a return current flows coaxially (hereinafter referred to as a return layer) is used as a DC power cable
- the forward layer a layer in which a forward current flows
- a return layer a layer in which a return current flows coaxially
- the magnetic field generated by the return current cancels out the magnetic field generated by the forward current and makes the leakage magnetic field outside the cable almost zero.
- the second superconducting layer is Functions as a shield.
- the branch power supply unit is provided at the separation point where the forward layer and the return layer are coaxial!
- the part where the separation part is provided include an intermediate connection part for connecting cables and an end connection part for connecting the cable and an external device.
- the shield layer (return layer), the electrical insulation layer, etc. that make up the cable are usually stripped and connected, so the outside of the forward layer is covered with the return layer.
- a separation point is formed in which the forward layer and the return layer are arranged non-coaxially.
- a branch power supply unit may be provided at an arbitrary position of the cable.
- a branch power supply unit may be provided in the intermediate connection part or the terminal connection part as described above.
- a branch power source may be provided.
- a branch power supply should be provided at any location on this cable.
- typical configurations of the intermediate connection portion of the superconducting cable include the following configurations.
- a superconducting cable having a second superconducting layer will be described as an example.
- the cores of the two cables to be connected are butted together, the second superconducting layer in each core is partially peeled off to expose the electrical insulating layer and the first superconducting layer, and the exposed first superconducting layers are Connection is made to form an insulating coating around the connection location.
- the second superconducting layer provided on the electrical insulating layer in the cable core is connected between the butt cores or adjacent cores.
- the insulating coating and the second superconducting layer connection are surrounded by a refrigerant tank and immersed in the refrigerant. Then, the periphery of the refrigerant tank is covered with a vacuum tank, and a vacuum is formed between the refrigerant tank and the vacuum tank to form an intermediate connection portion.
- Typical configurations of the terminal connection portion of the superconducting cable include the following configurations. It has a termination junction box that covers the refrigerant tank with a vacuum tank, introduces the end of the superconducting cable along the horizontal direction into the refrigerant tank, and introduces one end of the lead bar along the vertical direction into the refrigerant tank. At the same time, the other end is pulled out of the vacuum chamber, and one end of the lead rod and the end of the superconducting cable are connected directly or indirectly in the refrigerant bath.
- the lead rod is, for example, copper or It is possible to use a combination of a force-bearing conductor such as aluminum and an insulating bushing such as FRP that covers the outside of the conductor.
- the intermediate connection portion and the termination connection portion of the superconducting cable may branch a refrigerant tank or a vacuum tank for each core.
- the vacuum chamber is configured to store the three cores at once by branching only the refrigerant tank.
- the connection section contains a plurality of cores
- the refrigerant tank is provided with a refrigerant branch section that branches for each core and stores the separation portion
- the vacuum tank covers all the refrigerant branch sections collectively. Constitute.
- the branch power source is formed at the separation point of the refrigerant branch.
- both the refrigerant tank and the vacuum tank may be branched.
- the connecting portion contains a plurality of cores
- the refrigerant tank is provided with a refrigerant branch part that branches for each core and accommodates the separation portion
- the vacuum tank is provided with a vacuum branch part that covers each refrigerant branch part. Let's make it.
- the branch power supply unit is formed at the separation point of the vacuum branch unit.
- the connecting portion has an individual connecting portion formed in each of the plurality of single-core superconducting cables, and a short-circuit portion that short-circuits the second superconducting layers of each cable between adjacent individual connecting portions.
- This short-circuit portion is a separation location where the first superconducting layer and the second superconducting layer are not arranged coaxially.
- the branch power supply unit may be provided in at least one place in the refrigerant tank, outside the refrigerant tank, inside the vacuum tank, and outside the vacuum tank.
- the portion where the second superconducting layer is peeled off in the core of the superconducting cable having the second superconducting layer usually has a large diameter due to the presence of the electrically insulating layer, but the core force is separated and only the second superconducting layer has a force. The diameter becomes smaller at the place. Therefore, it is preferable to provide a branch power supply portion at a location where only the second superconducting layer is powerful.
- connection location where the first superconducting layer is connected by abutting a pair of cores, and the second superconducting layers of both cores are connected in parallel to this connection location
- such a branch power supply unit may be provided only on the forward line, may be provided only on the return line, or may be provided on both the forward line and the return line.
- a bipolar transmission line it may be provided on at least one of the positive line, the negative line, and the neutral line, for example, may be provided only on the positive line, or may be provided on the positive line and the negative line. You may provide in all the lines of a positive electrode line, a negative electrode line, and a neutral wire.
- an induction current is generated by an alternating magnetic field superimposed on the cable, and this current is drawn out of the connection section via a separate lead wire attached to the branch power supply section.
- This lead wire passes through the refrigerant tank and the vacuum tank when the branch power supply unit is arranged in the refrigerant tank, and when the branch power supply unit is arranged outside the refrigerant tank and inside the vacuum tank, Each is drawn out of the connection through the tank. At this time, it is preferable to seal the penetration portion of the lead wire in the refrigerant tank or the vacuum tank with a hermetic seal or the like.
- the branch power supply unit is connected to various power devices used for operation of the power cable via lead wires, and supplies the power extracted by the branch power supply unit to the power device.
- Examples of electric power equipment include various sensors and monitoring devices, and in the case of superconducting cables, auxiliary refrigerators, auxiliary pumps, and auxiliary vacuum pumps.
- the superimposed AC component is hardly transmitted to the load as it is, but a filter is provided to ensure that the AC component flows to the load. It is good also as a structure reduced to.
- a filter is placed in the vicinity of a load that uses DC power to be transmitted.
- a filter may be built in the DC / AC converter. This filter attenuates the superimposed AC component and passes DC current. It is good to use the thing of the structure to make it.
- the power cable line of the present invention having the above-described configuration can easily supply power to various power devices used for the operation of the line by superimposing an AC component while performing DC power transmission. An excellent effect can be achieved.
- a superconducting cable is used as a power cable, it is preferable that a large-capacity DC transmission can be performed compared to a normal conducting cable.
- FIG. 1 is a schematic configuration diagram of a power cable line of the present invention, where (A) shows a unipolar transmission line and (B) shows a bipolar transmission line.
- FIG. 2 is a schematic configuration diagram of an AC superposition unit provided in the line of the present invention.
- (A) is a configuration including a transformation unit
- (B) is a configuration including an inductive coupling unit. is there.
- FIG. 3 is a cross-sectional view of a superconducting cable of a three-core type.
- FIG. 4 is a schematic diagram of a schematic configuration including a branch power supply unit in an intermediate connection portion of a three-core superconducting cable, in which three cores are housed in the same refrigerant tank and vacuum tank, and are different.
- the structure which has the short circuit part which connected the 2nd superconducting layers of the core which constructs a line is shown.
- FIG. 5 shows a configuration having a short-circuit connection portion for connecting a short-circuit portion in the intermediate connection portion of the three-core superconducting cable shown in FIG.
- Fig. 6 is a schematic diagram of a schematic configuration including a branch power supply unit in the intermediate connection portion of the three-core superconducting cable.
- the three-core core is housed in the same refrigerant tank and vacuum tank, and is the same.
- a configuration having a connecting portion that connects the second superconducting layers of the core that constructs the line is shown.
- FIG. 7 is a schematic diagram of a schematic configuration including a branch power source at the intermediate connection portion of the three-core superconducting cable.
- the coolant tank is branched for each core, and the branch points of the coolant tank are bundled together.
- a configuration including a vacuum chamber for covering is shown.
- FIG. 8 is a schematic diagram of a schematic configuration including a branch power supply unit in an intermediate connection portion of a three-core superconducting cable, and shows a configuration including a refrigerant tank and a vacuum tank branched for each core.
- Fig. 9 is a schematic diagram showing a branch power supply unit at the intermediate connection of a single-core superconducting cable. It is a schematic diagram of a general configuration.
- FIG. 10 is a schematic diagram of a schematic configuration including a branch power supply unit in an intermediate connection portion of a normal conducting cable.
- A is an example including a branch power supply unit on the outer periphery of a connection line.
- B) shows an example in which a branch power supply unit is provided on the outer periphery of the junction of the connection case.
- FIG. 11A is a schematic configuration diagram of a unipolar transmission line
- FIG. 11B is a schematic configuration diagram of a bipolar transmission line.
- FIG. 1 is a schematic configuration diagram of a power cable line according to the present invention.
- (A) is a unipolar transmission line
- ( B) shows a bipolar transmission line.
- the line of the present invention includes a power cable (lg, lr, lp, lm, ln) for direct current transmission and distribution, an AC superimposing unit 2 for superimposing an AC component on the cable, and power induced by the superimposed AC component.
- a branch power supply unit 3 for taking out the
- the explanation will be divided into single pole transmission lines and bipolar transmission lines.
- the unipolar transmission line comprises a power cable lg serving as a forward line and a power cable lr serving as a return line, and both cables lg and lr are Connected by leads 13 and 14 via AC / DC converter 11 and DC / AC converter 12 to form a closed circuit.
- An AC power source 10a is connected to one end of the outgoing cable lg, and a load is connected to the other end.
- the AC / DC converter 11 converts the AC of the AC power source 10a into DC
- the DC / AC converter 12 converts the transmitted DC into AC.
- one end of the return cable lr is grounded.
- the track according to the present invention includes an AC superimposing unit 2 that superimposes an AC component on the power cables lg and lr in such a unipolar transmission line.
- the AC superimposing unit 2 is arranged in the vicinity of the AC / DC converter 11 in the lead 13. In the example shown in FIG.
- the AC superimposing unit 2 is arranged on the return line side of the AC / DC converter 11 in the lead 13, but in addition to the outgoing line side of the AC / DC converter 11 in the lead 13, the load side ( On lead 14), specifically, it may be arranged in the broken line square A portion of FIG.
- the AC superimposing unit 2 is connected to the AC power source 10b and superimposes an AC component of a desired size on the power cables lg and lr. Detailed configuration will be described later.
- the track according to the present invention includes the branch power supply unit 3 in the cables lg and lr so as to bow out the AC component superimposed on the cables lg and lr.
- the branch power supply unit 3 used in this example is configured to extract an AC component by inductive coupling. Detailed configuration will be described later.
- the track according to the present invention performs DC transmission and distribution, but can easily extract the AC component superimposed on the power cable. Therefore, the extracted power can be supplied to various power devices used for track operation, and a separate independent power source can be provided. There is no need to provide it.
- the extracted power is supplied to the power equipment by connecting the branch power supply unit and the power equipment with a lead wire or the like.
- the branch power supply units are provided on both the outgoing line and the return line, but V or a deviation may be used.
- a filter that attenuates the AC component that more reliably reduces the transmission of the superimposed AC component to the load and passes only the DC component is disposed. May be.
- Such a filter may be arranged on the load side after being converted to AC by the DC / AC converter 12, specifically, in the broken circle B portion in FIG. 1 (A). Let's build it into Ref.
- the power cable to be used may be a single single-cable cable including the first and second superconducting layers (or electrode layers), or the first and second superconducting layers (or electrode layers). It is also possible to use a multi-core cable with two or more cable cores. When using a multi-core cable, the core not used for power transmission should be a spare line. The core used for power transmission is constructed using the first and second superconducting layers provided in one core. Alternatively, a single-core cable that does not include the second superconducting layer (or electrode layer) may be used, and the second superconducting layer (or electrode layer) may be used. You may utilize the multiple core cable twisted above.
- the core not used for power transmission uses the first superconducting layer of one core and the first superconducting layer of another core to construct a line.
- a grounding shield layer as a ground potential is provided for voltage application.
- the bipolar transmission line includes a power cable lp serving as a positive line, a power cable lm serving as a negative line, and a power cable In serving as a neutral line in parallel.
- the cables ⁇ , ⁇ ⁇ are connected with leads 13p, 13n, 14p, 14n via the first AC / DC converter llp and the first DC / AC converter 12p, and the cables lm, ln are connected with the second AC / DC converter LLM, lead via the second DC / AC Henkoboshi 12m 13m, 13 n, 14m, a closed circuit by connecting at 14n to configure.
- the AC power supply 10a is connected to one end of the cable lp that becomes the positive line.
- a load is connected to the end side.
- the first AC / DC converter llp and the second AC / DC converter 11 m convert the AC of the AC power source 10a into DC, the first DC / AC converter 12p, the second DC / AC converter l2m
- the transmitted direct current is converted into alternating current.
- one end (in this example, the load side) of the cable In that is a neutral wire is grounded.
- the track of the present invention includes an alternating current superimposing unit 2 that superimposes an alternating current component on the power cables lp and In in such a bipolar transmission line.
- the AC superposition unit 2 is arranged in the vicinity of the first AC / DC converter lip in the lead 13p.
- the AC superimposing section 2 is arranged on the neutral line side of the first AC / DC converter lip in the lead 13p, but the second AC / DC converter lip is connected to the positive line side of the first AC / DC converter lip.
- the AC superimposing unit 2 is connected to the AC power supply 10b and superimposes an AC component of an appropriate size on the power cables lp and In.
- the detailed configuration of the AC superposition unit 2 will be described later.
- the track of the present invention includes the branch power supply unit 3 in the cable lp, In that draws the AC component superimposed on the cable lp, In.
- the branch power supply unit 3 used in this example is configured to extract an AC component by inductive coupling, and a detailed configuration will be described later.
- the line of the present invention performs direct-current power transmission / distribution in the same manner as a single-pole power transmission line, and can easily extract an alternating-current component. Therefore, the extracted electric power can be supplied to various electric power equipment used for the operation of the track.
- the extracted power is supplied to the power equipment by connecting the branch power supply unit and the power equipment with a lead wire or the like.
- the branch power supply unit is provided on the positive line and the neutral line. However, it may be provided on at least one of the positive line, the negative line, and the neutral line. Alternatively, it may be provided on both the positive line and the negative line, or may be provided on all three lines.
- an AC superimposition is placed on the lead 13m.
- the AC superimposition unit may be provided on any of leads 13p, 13m, and 13n. Yes.
- a filter may be arranged. Such a filter is the load side after being converted to AC by the first DC / AC converter l2p,
- the power cable to be used may be a single-cable cable including the first and second superconducting layers (or electrode layers), or the first and second superconducting layers (or electrode layers).
- a two-core cable obtained by twisting two cable cores may be used.
- using a multi-core cable with three or more cores do not use it for power transmission! You may provide a core as a spare line.
- the core used for power transmission is constructed using the first superconducting layer and the second superconducting layer provided in the two cores.
- a single-core cable that does not have a second superconducting layer (or electrode layer) may be used, and a second superconducting layer (or electrode layer) may be used! / ,!
- the core not used for power transmission should be a reserve line.
- the core used for power transmission constructs a line using the first superconducting layer of one core, the first superconducting layer of another core, and the first superconducting layer of another core.
- a grounding shield layer is provided as a ground potential for voltage application.
- FIG. 2 is a schematic configuration diagram of an alternating current superimposing unit provided on the track of the present invention.
- (A) is a configuration including a transformer unit
- (B) is a configuration including an inductive coupling unit.
- the AC superposition unit 2A shown in FIG. 2 (A) is connected to the AC power source 10b and includes a transformer unit that transforms AC power.
- the transformer converts the power from the AC power source 10b to an appropriate magnitude and superimposes the AC component on the lead 13.
- an AC component flows through the power cable (see FIG. 1) via the lead 13, and a DC component flows through the AC / DC converter 11.
- the AC superposed portion 2 ⁇ shown in FIG. 2 (B) includes a ferromagnetic body 2a disposed on the outer periphery of the lead 13 and a ferromagnetic In addition to being wound spirally around the outer periphery of the sex body 2a, it is connected to an AC power source 10b and has a winding 2b through which AC power flows.
- a ferromagnetic material 2a a ferrite core was used, which was easily arranged on the outer periphery of the lead 13 and formed into a ring shape by combining a pair of semicircular arc pieces.
- As the winding 2b one having a conductive material strength was used.
- this AC superimposing section 2B when an AC current flows from the AC power source 10 to the winding 2b, a magnetic field is applied to the ferromagnetic body 2a and applied to the lead 13 according to the magnetic field and the permeability of the ferromagnetic body 2a. Alternating current flows.
- an AC component is supplied to the power cable (see FIG. 1) via the lead 13, and a DC component is supplied by the AC / DC change ll.
- This AC superimposing portion by inductive coupling is particularly preferable when a superconducting cable capable of large-capacity DC transmission is used for the line.
- the power superimposed by the AC superimposing unit shall be less than or equal to the DC power transmitted so as not to impair the DC transmission and distribution.
- the power cable used for the track of the present invention can be used for both normal and superconducting cables.
- the configuration of the branch power supply unit and the arrangement state of the branch power supply unit when using a superconducting cable will be described.
- Fig. 3 is a cross-sectional view of a three-conductor type superconducting cable.
- This cable 100 is a low-temperature insulation type cable, and has a configuration in which a three-core cable core 110 is housed in a heat insulation pipe 120.
- Each core 110 has a former 15, a first superconducting layer 20, an electrical insulating layer 30, a second superconducting layer 40, and a protective layer 50 in order of central force.
- superconducting wires are used for the first superconducting layer 20 and the second superconducting layer 40.
- bipolar transmission is possible by using the first superconducting layer of one core as the positive line, the first superconducting layer of the other core as the negative line, and the second superconducting layer of these two cores as the neutral line. It can be performed .
- the remaining cores may be used for spare lines.
- unipolar power transmission can be performed by using the first superconducting layer of each core as an outgoing line and the second superconducting layer of the same core as a returning line.
- Former 15 includes solid ones made by twisting metal wires, and hollow ones using metal knobs. Things are available.
- An example of a solid former is one in which multiple copper strands are twisted together.
- the inside can be used as a refrigerant flow path.
- the first superconducting layer 20 is preferably a tape wire in which a plurality of high-temperature oxide superconducting filaments are covered with a silver sheath.
- Bi2223 tape wire was used. This tape wire is wound in multiple layers on the former to form the first superconducting layer 20.
- the electrical insulating layer 30 is made of, for example, a laminate of kraft paper and a resin film such as polypropylene (PPLP: registered trademark manufactured by Sumitomo Electric Industries, Ltd.), and the like on the outer periphery of the first superconducting layer 20. Can be configured by winding.
- PPLP polypropylene
- the superconducting cable used in this example is provided with a second superconducting layer 40 coaxially with the first superconducting layer 20 outside the electrical insulating layer 30.
- the second superconducting layer 40 is formed by winding a superconducting wire similar to that used for the first superconducting layer 20 provided outside the electrical insulating layer 30.
- This second superconducting layer 40 is used as a return line in the case of unipolar transmission, and is used as a neutral line in the case of bipolar transmission.
- a protective layer 50 is further formed on the second superconducting layer 40.
- This protective layer 50 mechanically protects the structure inside the second superconducting layer 40, and is formed by scrubbing craft paper or cloth tape on the second superconducting layer 40.
- the heat insulating pipe 120 has a double pipe structure having a corrugated inner pipe 121 and a corrugated outer pipe 122 made of stainless steel. Usually, a space is formed between the corrugated inner tube 121 and the corrugated outer tube 122, and the space is evacuated. In the space to be evacuated, a super insulation (trade name) is arranged to reflect radiant heat.
- the liquid In the corrugated inner pipe 121, the liquid is contained in a space 123 surrounded by the inner peripheral surface of the inner pipe 121 and the outer peripheral surface of the cable core 110.
- a refrigerant such as body nitrogen is filled, and the first superconducting layer 20 and the second superconducting layer 40 are cooled by this refrigerant to maintain the superconducting state. When liquid nitrogen is used as a refrigerant, it also serves as electrical insulation.
- an anticorrosion layer 124 made of polysalt tube is formed on the corrugated outer tube 122.
- a configuration including a branch power supply unit that draws branch power as a power source of various power devices used for operation of the track in the intermediate connection portion of the superconducting cable will be described with reference to FIG.
- FIG. 4 is a schematic diagram showing a schematic configuration of the intermediate connection portion of the superconducting cable. This figure does not show the force of two cores for convenience of explanation, but there are actually three cores.
- the thick solid line indicates the first superconducting layer of each core
- the broken line indicates the second superconducting layer.
- the second superconducting layer is actually coaxially arranged outside the first superconducting layer via an electrical insulating layer. It is a place. The same applies to the connecting portions shown in each figure after FIG. 5 to be described later.
- the intermediate connection portion 200 shown in FIG. 4 has a configuration in which the ends of a pair of superconducting cables are butted and the three cores 110 constituting each cable are butted and connected.
- the end portions of the respective cores 110 are arranged in contact with each other, and the end portions of the first superconducting layer 20, the electrical insulating layer, and the second superconducting layer 40 are exposed. Remove it. Then, the first superconducting layers 20 of the cores 110 that are abutted are connected to each other to form a conductor connection portion.
- the cores 110 to be matched shall be the ones that construct the same line among the three cores included in each superconducting cable. For example, a core used as a positive line in one superconducting cable and a core used as a positive line in the other superconducting cable are matched.
- An insulation coating 31 is formed outside the conductor connection portion by wrapping insulation paper or the like.
- the core second superconducting layers 40 constituting different lines are short-circuited by a short-circuit portion 41. That is, the second superconducting layers 40 of the cores of different lines are connected by the short-circuit portion 41 on the right side and the left side across the insulating coating portion 31, respectively, and are closed circuit. Is formed.
- the braided material having excellent flexibility is used for the short-circuit portion 41, it is easy to connect the second superconducting layers 40 to each other, and the connection workability is excellent.
- each of the cores 110, the insulation coating portion 31, and the short-circuit portion 41 are accommodated in the refrigerant tank 210.
- a refrigerant such as liquid nitrogen is circulated, and the superconducting wire used in the connection portion is cooled to a cryogenic temperature and maintained in a superconducting state.
- a vacuum tank 220 is disposed outside the refrigerant tank 210 to be insulated.
- an intermediate connection portion 200 there is a portion between the insulating coating portion 31 and the end portion of the superconducting layer 40 where the electric insulating layer is exposed and not covered with the second superconducting layer 40. .
- a branch power supply unit 3 is provided on the outer periphery of the separation location.
- the alternating current superimposing unit superimposes the alternating current component on the first superconducting layer 20.
- the branch power supply unit 3 used is one that extracts AC power by inductive coupling. Specifically, it has a configuration including a ferromagnetic body disposed on the outer periphery of the separation portion and a winding (not shown) wound spirally around the outer periphery of the ferromagnetic body.
- Figure 4 shows an annular ferromagnet as viewed along the outer radial direction.
- a ferrite core force is used, and a pair of semicircular arc pieces are combined to form an annular shape so as to be easily arranged on the outer periphery of the branching portion.
- the branch power supply unit 3 is arranged in a state immersed in the refrigerant. Then, an induced current is generated in the feeder line of the branch power supply unit 3 using the magnetic field generated by the alternating current flowing in the first superconducting layer 20 at the separation location, and the induced current is not shown and drawn out through the lead wire.
- the lead wire passes through the refrigerant tank 210 and the vacuum tank 220 and is drawn to the outside of the connection portion. At this time, each passage location of the refrigerant tank 210 and the vacuum tank 220 is sealed with a hermetic seal.
- the end of the lead wire is connected to various power devices necessary for the operation of the superconducting cable, such as sensors, monitoring devices, and other devices such as an auxiliary refrigerator and an auxiliary pump. With this configuration, these power devices can be driven using AC power drawn by the branch power supply unit.
- the portion where the second superconducting layer 40 is removed and the electrically insulating layer is exposed is defined as a separation location, and the branch power supply unit 3 is disposed at this separation location.
- the short circuit part 41 itself of the second superconducting layer 40 can also be used.
- This short-circuit portion 41 is a portion where the second superconducting layer 40 is separated from the first superconducting layer 20 and arranged non-coaxially, so that the magnetic fields due to the currents flowing in both layers 20 and 40 may cancel each other.
- power can be drawn by the branch power supply unit 3.
- the AC superposition unit superimposes an AC component on the second superconducting layer 40 (return conductor or neutral wire).
- the branch power supply units are arranged at a plurality of locations that can be used as separation locations. However, any one of these locations may be selected to provide the branch power supply units. The same applies to FIG. 5 and subsequent figures.
- the superconducting cable having the second superconducting layer is described as! /.
- the superconducting cable having the second superconducting layer is not suitable. May have a layer).
- the first superconducting layer of one core is a positive line
- the first superconducting layer of the other core is a negative line
- the first superconducting layer of another core is a neutral line, and at least one of these.
- An AC component may be superimposed on the first superconducting layer of one core.
- a branch power supply unit can be provided at any location of the core.
- the first superconducting layer of one core is used as the outgoing line
- the first superconducting layer of the other core is used as the returning line
- the other core is used as a backup line.
- An AC component may be superimposed on the first superconducting layer of the core. The same applies to Fig. 5 and subsequent figures.
- Example 1 a configuration having the short-circuit portion 41 in which the second superconducting layers of the cores constructing different lines are connected is shown. Further, as shown in FIG. 5, these short-circuited portions 41 may be connected, and the branch power supply unit 3 may be disposed in the short-circuited connected portion 41a. Since the short-circuited connection part 41a is separated from the first superconducting layer 20 and arranged non-coaxially in the same manner as the short-circuited part 41, the branch power supply part 3 is arranged in the connection part 41a, so that the connection part 41a The power can be branched out by induction of the magnetic field force of the alternating current flowing through the. Such a short-circuit connection portion 41a can also be provided in the embodiments shown in FIG.
- Example 1 a configuration having a short-circuit portion in which the second superconducting layers of the cores constructing different lines are connected is shown.
- the core that does not have the same short-circuited part and constructs the same line
- a branch power source part is provided in the intermediate connection part in which the second superconducting layers are connected in parallel with the first superconducting layer
- each layer is cut off at the ends of the pair of superconducting cables to form a conductor connection portion and an insulation coating portion 31, and the connection portions of these cores 110 are collectively collected as a refrigerant.
- the points covered with the tank 210 and the vacuum tank 220 are the same as in Example 1.
- the difference between Example 1 and this example is that the second superconducting layer 40 of the core 110 that constructs the same line is not short-circuited between the second superconducting layers 40 of the core 110 that construct different lines. This is because the branch power supply unit 3 is provided in the connecting unit 42. Note that the configuration of the branch power supply unit 3 is the same as in Example 1, and the point that the branch power supply unit 3 is immersed in the refrigerant is also the same as in Example 1.
- the connecting part 42 shown in this example is arranged by connecting the branch power supply unit 3 to the connecting part 42.
- the magnetic field force of the alternating current flowing through 42 can also be taken out by inducting power.
- a branch power supply unit is provided in an intermediate connection part having a refrigerant tank branched for each core and a vacuum tank that collectively covers the branching points of these refrigerant tanks. I will explain.
- the intermediate connection part of the superconducting cable shown in Examples 1 to 3 a connection structure was formed by branching for each core 110, and three connection points were accommodated in the same refrigerant tank.
- the intermediate connection portion shown in this example is different in that the refrigerant tank 210 itself is branched for each core 110. That is, at the end of each core 110, the conductor connecting portion and the insulating covering portion 31 are formed in the same manner as in Example 1, and the second superconducting layer 40 is short-circuited by the short-circuit portion 41 between the cores constructing different lines. Yes.
- the refrigerant tank 210 is branched for each core to form a refrigerant branch part 211, and the insulation coating part 31 and the separation part are accommodated in each refrigerant branch part 211, respectively.
- the refrigerant branching portion 211 is formed using a member that can be divided into right and left in substantially the middle.
- the refrigerant tank 210 is housed in one vacuum tank 220 as in the first example. That is, the vacuum chamber 220 is not branched, and a cylindrical container that can collectively store the refrigerant branch portions 211 of the refrigerant vessel 210 is used. It is.
- the branch power supply unit 3 is provided on the outer periphery of the separation part.
- the configuration of the branch power supply unit 3 is the same as in Example 1 above.
- the branch power supply unit 3 may be provided at a separation location inside the refrigerant branching portion 211, or may be provided outside the refrigerant branching portion 211 and at a separation location inside the vacuum chamber 220. In the latter case, the lead wire connected to the branch power supply unit 3 only needs to pass through the vacuum tank 220 which does not need to pass through the refrigerant tank 210.
- branch power supply unit 3 may be arranged on the outer periphery of the short circuit part 41 or on the outer periphery of the connection part by providing a connection part without providing the short circuit part as in Example 3. By providing the branch power supply unit 3 at such a separation point, branch power can be taken out from the connection unit.
- Example 4 a force using a refrigerant branch part 211 formed in the refrigerant tank 210 and the vacuum tank 220 not branched is used.
- the vacuum tank 220 is also branched for each core 110. Yes.
- the vacuum tank 220 is formed with a vacuum branching part 221 that is branched for each refrigerant branching part 211 so that the refrigerant branching part 211 of the refrigerant tank 210 can be individually covered.
- the vacuum branch 221 is formed by using a member that can be divided into left and right substantially in the middle, similar to the refrigerant branch 211.
- the single-core superconducting cable has a configuration in which the core of the above three-core superconducting cable is a single core.
- a single-pole power transmission line can be constructed by providing a single strand of such a single-core superconducting cable (having a second superconducting layer, and in this case, striping).
- a bipolar transmission line can be constructed by providing such a single-core superconducting cable (having a second superconducting layer, in this case, three).
- a single-core superconducting cable having a second superconducting layer, in this case, three.
- a monopolar transmission line is constructed using a single-core superconducting cable having a second superconducting layer. That is, in each single-core superconducting cable, the first superconducting layer is used for the outgoing line, and the second superconducting layer is used for the return conductor.
- each cable 300 is formed with an individual connection portion 250.
- These individual connection parts 250 are formed by forming a conductor connection part at the end of the superconducting cable 300 in the same manner as in Example 1 and providing the insulating coating part 31 thereon.
- Each individual connection part 250 is housed in the refrigerant tank 210 and immersed in a coolant such as liquid nitrogen. The outside of the refrigerant tank 210 is covered with a vacuum tank 220 and insulated.
- a short-circuit portion 41 that short-circuits the second superconducting layers 40 of the respective superconducting cables 300 is formed between adjacent individual connection portions 250.
- short-circuit portions 41 are formed on the right side and the left side of the insulation coating portion 31, respectively, and the second superconducting layers 40 of the individual connection portions 250 located on the right side of the insulation coating portion 31 are short-circuit portions 41.
- a connected closed circuit is formed, and similarly, a closed circuit is formed in which the second superconducting layers 40 of the individual connection portions 250 located on the left side of the insulating coating portion 31 are connected to each other.
- These short-circuit parts 41 are covered with a refrigerant connecting part 212 and a vacuum connecting part 222 that connect adjacent refrigerant tanks 210 and adjacent vacuum tanks 220, and are immersed in a refrigerant such as liquid nitrogen.
- the short-circuit portion 41 is used as a separation location, and the branch power source portion 3 is provided on the outer periphery of the short-circuit portion 41. More specifically, examples include the inside of the refrigerant tank 210 in the short-circuit portion 41, the inside of the vacuum connection portion 222 outside the refrigerant connection portion 212 in the short-circuit portion 41, and the outside of the vacuum connection portion 222 in the short-circuit portion 41.
- the Other separation points are in the refrigerant tank 210 other than the refrigerant connecting part 212 and between the insulating covering part 31 and the short circuit part 41, and outside the vacuum tank 220 other than the vacuum connecting part 222 and in the insulating covering part.
- the short-circuit connection portion 41a When the short-circuit connection portion 41a is provided between the portion 31 and the short-circuit portion 41, the short-circuit connection portion 41a and the like are listed. As shown in this example, the connecting power of the single-core superconducting cable 300 can also extract the branch power.
- the normal conducting cable 60 is configured to include a sheath 61 on the outer periphery of a cable core having a conductor, an electrical insulating layer, and an electrode layer coaxially in order of central force.
- the conductor layer is exposed by cutting off the electrode layer and the electrical insulation layer at the end of each core 61, and the conductors are connected using a connection member such as a connection sleeve.
- connection case 62 is a combination of split pieces that can be divided in the longitudinal direction, and the joint 64 of the split pieces is formed of an insulating material.
- the sheath 61 of each cable 60 is electrically connected to the connection case 62. Therefore, as shown in FIG. 10 (A), the divided pieces of the connection case 62 are coupled by the connection line 63, and the branch power supply unit 3 is disposed on the connection line 63.
- connection line 63 is a separation point arranged non-coaxially with respect to the conductor, and power can be drawn out by the branch power supply unit 3.
- the branch power supply unit 3 may be arranged on the outer periphery of the joint portion 64. Since the junction 64 does not have the electrode layer 61 and the connection case 62 that is electrically connected to the electrode layer 61 on the outer periphery of the conductor, the branch power supply unit 3 can draw power.
- the power cable line of the present invention can be used for power supply, and while being a DC power transmission line, it is possible to take out and use an AC component separately superimposed for driving a power device for operating the line. .
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Insulated Conductors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05805442A EP1818944A1 (en) | 2004-12-01 | 2005-10-31 | Power cable line |
MX2007005769A MX2007005769A (es) | 2004-12-01 | 2005-10-31 | Linea de cable de energia. |
KR1020077012338A KR101167749B1 (ko) | 2004-12-01 | 2005-10-31 | 전력 케이블 선로 |
US11/791,946 US7719130B2 (en) | 2004-12-01 | 2005-10-31 | Power cable line |
CA002587219A CA2587219A1 (en) | 2004-12-01 | 2005-10-31 | Power cable line |
NO20072736A NO20072736L (no) | 2004-12-01 | 2007-05-30 | Kraftkabelledning |
HK08101033.9A HK1112105A1 (en) | 2004-12-01 | 2008-01-25 | Power cable line |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004349164A JP4730583B2 (ja) | 2004-12-01 | 2004-12-01 | 超電導ケーブル線路 |
JP2004-349164 | 2004-12-01 |
Publications (1)
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WO2006059445A1 true WO2006059445A1 (ja) | 2006-06-08 |
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PCT/JP2005/020017 WO2006059445A1 (ja) | 2004-12-01 | 2005-10-31 | 電力ケーブル線路 |
Country Status (12)
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US (1) | US7719130B2 (ja) |
EP (1) | EP1818944A1 (ja) |
JP (1) | JP4730583B2 (ja) |
KR (1) | KR101167749B1 (ja) |
CN (1) | CN100585753C (ja) |
CA (1) | CA2587219A1 (ja) |
HK (1) | HK1112105A1 (ja) |
MX (1) | MX2007005769A (ja) |
NO (1) | NO20072736L (ja) |
RU (1) | RU2366016C2 (ja) |
TW (1) | TW200629686A (ja) |
WO (1) | WO2006059445A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU172234U1 (ru) * | 2017-01-31 | 2017-07-03 | Общество с ограниченной ответственностью "Сарансккабель" | Кабель силовой |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4840660B2 (ja) * | 2007-01-18 | 2011-12-21 | 住友電気工業株式会社 | 給電システム |
JP4962152B2 (ja) * | 2007-06-15 | 2012-06-27 | 日立電線株式会社 | 光電気複合伝送アセンブリ |
KR20100132008A (ko) * | 2008-04-04 | 2010-12-16 | 마스코 코포레이션 | Dc 배전 시스템 |
JP5187624B2 (ja) * | 2008-06-30 | 2013-04-24 | 川崎重工業株式会社 | 電気鉄道システムを利用したマイクログリッド |
TWI407112B (zh) * | 2010-05-03 | 2013-09-01 | Aten Int Co Ltd | 電源量測裝置 |
KR101027535B1 (ko) * | 2010-08-25 | 2012-04-18 | 엘아이지넥스원 주식회사 | 초전도 선재를 이용한 함정 탈자 시스템 |
CN103098147B (zh) * | 2011-03-17 | 2016-02-24 | 古河电气工业株式会社 | 超导电缆的固定结构以及超导电缆线路的固定结构 |
EP2698891B1 (en) * | 2011-12-21 | 2018-04-18 | 3M Innovative Properties Company | Terminal connection device for a power cable |
WO2014003606A2 (ru) * | 2012-06-28 | 2014-01-03 | Открытое акционерное общество "Федеральная сетевая компания Единой энергетической системы" | Сверхпроводящий кабель (варианты) |
WO2015018418A1 (en) * | 2013-08-09 | 2015-02-12 | Vestas Wind Systems A/S | Electricity transmission |
JP5871339B2 (ja) * | 2014-01-21 | 2016-03-01 | 株式会社ジェイ・パワーシステムズ | 電力ケーブル |
US9983228B2 (en) * | 2014-09-24 | 2018-05-29 | Keithley Instruments, Llc | Triaxial DC-AC connection system |
CN110729079B (zh) * | 2019-09-17 | 2022-04-15 | 中国电力科学研究院有限公司 | 超导输电电缆及超导输电电缆系统 |
GB2615813B (en) * | 2022-02-21 | 2024-05-22 | The Open Univ | Combined AC/DC power supply and associated methods and systems |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58127527A (ja) * | 1982-01-25 | 1983-07-29 | 日本電気株式会社 | 遠方給電方式 |
JPH01140514A (ja) * | 1987-11-26 | 1989-06-01 | Hitachi Cable Ltd | 電力輸送用超電導ケーブル |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE430452B (sv) * | 1982-03-04 | 1983-11-14 | Asea Ab | Styrsystem for likstromskraftoverforing |
SU1132263A1 (ru) * | 1982-12-08 | 1984-12-30 | Всесоюзный Научно-Исследовательский Институт Электроэнергетики | Устройство дл поиска места повреждени изол ции жилы в силовой кабельной линии |
US4943902A (en) * | 1987-11-23 | 1990-07-24 | Viteq Corporation | AC to DC power converter and method with integrated line current control for improving power factor |
RU2028638C1 (ru) * | 1991-06-13 | 1995-02-09 | Дунаев Борис Дмитриевич | Способ контроля сопротивления изоляции разветвленных сетей постоянного и переменного тока |
US5625548A (en) * | 1994-08-10 | 1997-04-29 | American Superconductor Corporation | Control circuit for cryogenically-cooled power electronics employed in power conversion systems |
JP3024627B2 (ja) * | 1998-02-03 | 2000-03-21 | 住友電気工業株式会社 | 海底ソリッドケーブル |
DE20018560U1 (de) * | 2000-10-30 | 2002-03-21 | CAMERON GmbH, 29227 Celle | Steuer- und Versorgungssystem |
JP2003141946A (ja) | 2001-11-02 | 2003-05-16 | Sumitomo Electric Ind Ltd | 超電導ケーブル |
ATE365969T1 (de) * | 2001-12-17 | 2007-07-15 | Prysmian Cavi Sistemi Energia | Stromtransportsystem mit einem kalten dielektrischen supraleitenden kabel |
JP4482851B2 (ja) | 2001-12-18 | 2010-06-16 | 住友電気工業株式会社 | 直流超電導ケーブル |
-
2004
- 2004-12-01 JP JP2004349164A patent/JP4730583B2/ja not_active Expired - Fee Related
-
2005
- 2005-10-31 CA CA002587219A patent/CA2587219A1/en not_active Abandoned
- 2005-10-31 EP EP05805442A patent/EP1818944A1/en not_active Withdrawn
- 2005-10-31 US US11/791,946 patent/US7719130B2/en not_active Expired - Fee Related
- 2005-10-31 RU RU2007124580/09A patent/RU2366016C2/ru not_active IP Right Cessation
- 2005-10-31 CN CN200580041209A patent/CN100585753C/zh not_active Expired - Fee Related
- 2005-10-31 MX MX2007005769A patent/MX2007005769A/es not_active Application Discontinuation
- 2005-10-31 KR KR1020077012338A patent/KR101167749B1/ko not_active IP Right Cessation
- 2005-10-31 WO PCT/JP2005/020017 patent/WO2006059445A1/ja active Application Filing
- 2005-11-28 TW TW094141654A patent/TW200629686A/zh unknown
-
2007
- 2007-05-30 NO NO20072736A patent/NO20072736L/no not_active Application Discontinuation
-
2008
- 2008-01-25 HK HK08101033.9A patent/HK1112105A1/xx not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58127527A (ja) * | 1982-01-25 | 1983-07-29 | 日本電気株式会社 | 遠方給電方式 |
JPH01140514A (ja) * | 1987-11-26 | 1989-06-01 | Hitachi Cable Ltd | 電力輸送用超電導ケーブル |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU172234U1 (ru) * | 2017-01-31 | 2017-07-03 | Общество с ограниченной ответственностью "Сарансккабель" | Кабель силовой |
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MX2007005769A (es) | 2007-07-20 |
NO20072736L (no) | 2007-08-28 |
KR20070088666A (ko) | 2007-08-29 |
EP1818944A1 (en) | 2007-08-15 |
CN100585753C (zh) | 2010-01-27 |
JP4730583B2 (ja) | 2011-07-20 |
RU2007124580A (ru) | 2009-01-10 |
RU2366016C2 (ru) | 2009-08-27 |
CA2587219A1 (en) | 2006-06-08 |
HK1112105A1 (en) | 2008-08-22 |
CN101069246A (zh) | 2007-11-07 |
JP2006156310A (ja) | 2006-06-15 |
TW200629686A (en) | 2006-08-16 |
US20080217995A1 (en) | 2008-09-11 |
US7719130B2 (en) | 2010-05-18 |
KR101167749B1 (ko) | 2012-07-23 |
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