WO1999028921A1 - Magnetic energy storage - Google Patents
Magnetic energy storage Download PDFInfo
- Publication number
- WO1999028921A1 WO1999028921A1 PCT/EP1998/007740 EP9807740W WO9928921A1 WO 1999028921 A1 WO1999028921 A1 WO 1999028921A1 EP 9807740 W EP9807740 W EP 9807740W WO 9928921 A1 WO9928921 A1 WO 9928921A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- high voltage
- smes device
- smes
- layer
- semiconducting
- Prior art date
Links
- 238000004146 energy storage Methods 0.000 title description 13
- 238000009413 insulation Methods 0.000 claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims description 43
- 238000010292 electrical insulation Methods 0.000 claims description 21
- 239000004065 semiconductor Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920001684 low density polyethylene Polymers 0.000 claims description 6
- 239000004702 low-density polyethylene Substances 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 5
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000012777 electrically insulating material Substances 0.000 claims description 4
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 2
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 claims 1
- 229920006245 ethylene-butyl acrylate Polymers 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 230000002829 reductive effect Effects 0.000 description 16
- 239000006229 carbon black Substances 0.000 description 11
- 238000004804 winding Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 239000002887 superconductor Substances 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- -1 NbTi Chemical compound 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 230000004907 flux Effects 0.000 description 7
- 230000005684 electric field Effects 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000010955 niobium Substances 0.000 description 4
- 229910000657 niobium-tin Inorganic materials 0.000 description 4
- 229920005601 base polymer Polymers 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000006261 foam material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000013528 metallic particle Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000012771 pancakes Nutrition 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000750 Niobium-germanium Inorganic materials 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000011243 crosslinked material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 229920001748 polybutylene Polymers 0.000 description 2
- 239000011116 polymethylpentene Substances 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- 229910000999 vanadium-gallium Inorganic materials 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RZTCDOVSKHNRPI-UHFFFAOYSA-N [C].C(CCC)C#C.C=C Chemical compound [C].C(CCC)C#C.C=C RZTCDOVSKHNRPI-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical compound C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
- H02J3/185—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters wherein such reactive element is purely inductive, e.g. superconductive magnetic energy storage systems [SMES]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/20—Active power filtering [APF]
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Definitions
- An SMES device is made from cable-like conductors which can be manufactured according to conventional principles of cable manufacturing.
- the insulation is such that it can withstand high voltages in the range of 1 kV and upwards to the voltages used for high voltage dc current transmission.
- the invention allows a high voltage system comprising an SMES device.
- the SMES device can be coupled to a high voltage network. This means that load- following can be effected on a transmission or distribution network and not only for a specific use on lower voltage as is the case with the SMES devices of today. This opens up possibilities to use SMES for storing energy to smooth load variations in a high voltage network on, for example, day-night basis or east-west basis.
- an SMES device on high voltage can be capable of injecting large amounts of energy into a system under a short time, that is injecting a large amount of real power, which will allow for good control of the system.
- the coil By connecting the coil directly to a high voltage dc source, e.g. to a high voltage ac-dc converter, charging and discharging of the coil is simplified.
- a high voltage dc source e.g. to a high voltage ac-dc converter
- charging and discharging of the coil is simplified.
- the need to transform the ac voltage down prior to connection to an ac-dc converter is eliminated.
- the semiconducting outer layer By holding the semiconducting outer layer at a controlled electric potential, e.g. ground or earth potential along its length, e.g. at spaced apart intervals along its length, the electric field generated by the superconducting means is contained within the electrical insulation.
- the coil and switch means are enclosed within a cryostat for maintaining the temperature of the superconducting means below its critical temperature (T c ) .
- the superconducting means may be internally cooled by a cryogenic fluid, e.g. liquid nitrogen, and externally thermally insulated.
- a cryogenic fluid e.g. liquid nitrogen
- thermal insulation may conveniently be provided between the superconducting means and the surrounding electrical insulation.
- the electrical insulation can also function as thermal insulation.
- a dry, wound multilayer thin film insulation has also good thermal properties and can be combined with a superconducting pipe as an electric conductor and have coolant, such as liquid nitrogen, pumped through the pipe.
- Another example of electrical insulation is similar to a conventional cellulose based cable, where a thin cellulose based or synthetic paper or non-woven material is lap wound around a conductor.
- the semi- conducting layers can be made of cellulose paper or non- woven material made from fibres of insulating material and with conducting particles embedded.
- the insulating layer can be made from the same base material or another material can be used.
- the outer conductor acts as the return path and both HTS conductors may be formed of one or many layers of HTS tape for carrying the required current.
- the inner conductor may comprise HTS tape wound on a tubular support through which liquid nitrogen is passed.
- the outer conductor is cooled externally by liquid nitrogen and the whole assembly may be surrounded by a thermally insulating cryostat.
- an electric power transmission system characterised in that an SMES device according to said one aspect is connected to a high voltage source, preferably a high voltage dc source.
- FIG. 1 is a circuit diagram of an SMES device according to the present invention.
- Figure 2 is a schematic sectional view, on an enlarged scale, through part of one embodiment of a high- temperature superconducting cable from which the coil of the SMES device of Figure 1 is wound;
- the electrical insulation comprises an inner semiconducting layer 20, an outer semiconducting layer 21 and, sandwiched between these semiconducting layers, an insulating layer 22.
- the layers 20-22 preferably comprise thermoplastics materials providing a substantially unitary construction. The layers may be in close mechanical contact with each other but are preferably solidly connected to each other at their interfaces. Conveniently these thermoplastics materials have similar coefficients of thermal expansion and are preferably extruded together around the inner superconducting means.
- the electrical insulation conveniently has an electric field stress of no more than 0.2 kV/m .
- the semiconducting layer 21 acts as a static shield and by controlling the electric potential of the outer layer, e.g. to earth potential, it is ensured that the electric field of the superconducting cable is retained within the solid insulation between the semiconducting layers 20 and 21. Losses caused by induced voltages in the layer 21 are reduced by increasing the resistance of the layer 21. However, since the layer 21 must be at least of a certain minimum thickness, e.g. no less than 0.8 mm, the resistance can only be increased by selecting the material of the layer to have a relatively high resistivity. The resistivity cannot be increased too much, however, else the voltage of the layer 21 mid-way between two adjacent earthing points will be too high with the associated risk of corona discharges occurring.
- the voltage over the converters SCR11 and SCR12 is ⁇ l and the voltage over converters SCR21 and SCR22 is U2.
- TJ1 and TJ2 are each controlled in a conventional manner by control equipment (not shown) connected with its respective converter.
- the current I d runs through the dc link DCL and the device SMES.
- the superconducting magnetic energy storage device SMES is part of a high voltage dc transmission system with a dc link.
- a pole control device, PCM is needed when providing the network N2 with power.
- V 3 Ga and Nb 3 Ge are V 3 Ga and Nb 3 Ge.
- the most common superconductor used is NbTi which can be utilised in magnetic field densities up to approximately 9 T at 4.2 K
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Particle Accelerators (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL13607198A IL136071A0 (en) | 1997-11-28 | 1998-11-30 | Magnetic energy storage |
BR9815008-1A BR9815008A (en) | 1997-11-28 | 1998-11-30 | Magnetic energy storage |
JP2000523676A JP2001525647A (en) | 1997-11-28 | 1998-11-30 | Magnetic energy storage device |
EP98964467A EP1034543A1 (en) | 1997-11-28 | 1998-11-30 | Magnetic energy storage |
CA002310595A CA2310595A1 (en) | 1997-11-28 | 1998-11-30 | Magnetic energy storage |
PL98340678A PL340678A1 (en) | 1997-11-28 | 1998-11-30 | Accumulation of energy in a magnetic field |
EA200000589A EA002609B1 (en) | 1997-11-28 | 1998-11-30 | Magnetic energy storage, a high voltage system and an electric power transmission system |
KR1020007005594A KR20010032358A (en) | 1997-11-28 | 1998-11-30 | Magnetic energy storage |
AU19656/99A AU737317B2 (en) | 1997-11-28 | 1998-11-30 | Magnetic energy storage |
NO20002735A NO20002735L (en) | 1997-11-28 | 2000-05-26 | Magnetic energy storage |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9725318A GB2331851A (en) | 1997-11-28 | 1997-11-28 | Magnetic energy storage |
GB9725318.1 | 1997-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999028921A1 true WO1999028921A1 (en) | 1999-06-10 |
Family
ID=10822865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/007740 WO1999028921A1 (en) | 1997-11-28 | 1998-11-30 | Magnetic energy storage |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP1034543A1 (en) |
JP (1) | JP2001525647A (en) |
KR (1) | KR20010032358A (en) |
CN (1) | CN1279809A (en) |
AU (1) | AU737317B2 (en) |
BR (1) | BR9815008A (en) |
EA (1) | EA002609B1 (en) |
GB (1) | GB2331851A (en) |
IL (1) | IL136071A0 (en) |
NO (1) | NO20002735L (en) |
PE (1) | PE20000199A1 (en) |
PL (1) | PL340678A1 (en) |
WO (1) | WO1999028921A1 (en) |
ZA (1) | ZA9810939B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040038576A (en) * | 2002-10-30 | 2004-05-08 | 석병관 | Capacitor technique apply energy save and super conducting electric cable |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10036519B4 (en) * | 2000-07-27 | 2005-09-01 | Forschungszentrum Karlsruhe Gmbh | A method for controlling a controllable current source and a controllable voltage source for charging the energy storage of a power modulator |
KR100840724B1 (en) * | 2006-11-09 | 2008-06-23 | 경상대학교산학협력단 | Insulation Design Method of 600kJ Class Conduction cooled High-Temperature Superconducting Magnetic Energy Storage |
JP5252323B2 (en) * | 2011-02-18 | 2013-07-31 | 住友電気工業株式会社 | Room-temperature insulated superconducting cable and manufacturing method thereof |
JP2012174669A (en) * | 2011-02-24 | 2012-09-10 | Sumitomo Electric Ind Ltd | Normal temperature insulating type superconducting cable |
JP5787872B2 (en) * | 2012-12-27 | 2015-09-30 | 三菱重工業株式会社 | Wind power generation facility and operation method thereof |
WO2016066187A1 (en) * | 2014-10-28 | 2016-05-06 | Abb Technology Ltd | Power converter assembly with insulating material-covered electrodes |
TWI620210B (en) * | 2016-08-22 | 2018-04-01 | 致茂電子股份有限公司 | Transformer embedded with thermally conductive member |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4431960A (en) * | 1981-11-06 | 1984-02-14 | Fdx Patents Holding Company, N.V. | Current amplifying apparatus |
GB2140195A (en) * | 1982-12-03 | 1984-11-21 | Electric Power Res Inst | Cryogenic cable and method of making same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69308737T2 (en) * | 1992-11-05 | 1997-06-19 | Gec Alsthom Electromec | Superconducting winding, in particular for current limiters and current limiters with such a winding |
GB2308490A (en) * | 1995-12-18 | 1997-06-25 | Oxford Instr Ltd | Superconductor and energy storage device |
-
1997
- 1997-11-28 GB GB9725318A patent/GB2331851A/en not_active Withdrawn
-
1998
- 1998-11-30 CN CN98811469A patent/CN1279809A/en active Pending
- 1998-11-30 PE PE1998001165A patent/PE20000199A1/en not_active Application Discontinuation
- 1998-11-30 WO PCT/EP1998/007740 patent/WO1999028921A1/en not_active Application Discontinuation
- 1998-11-30 EP EP98964467A patent/EP1034543A1/en not_active Withdrawn
- 1998-11-30 KR KR1020007005594A patent/KR20010032358A/en not_active Application Discontinuation
- 1998-11-30 ZA ZA9810939A patent/ZA9810939B/en unknown
- 1998-11-30 JP JP2000523676A patent/JP2001525647A/en active Pending
- 1998-11-30 AU AU19656/99A patent/AU737317B2/en not_active Ceased
- 1998-11-30 PL PL98340678A patent/PL340678A1/en unknown
- 1998-11-30 IL IL13607198A patent/IL136071A0/en unknown
- 1998-11-30 BR BR9815008-1A patent/BR9815008A/en not_active IP Right Cessation
- 1998-11-30 EA EA200000589A patent/EA002609B1/en not_active IP Right Cessation
-
2000
- 2000-05-26 NO NO20002735A patent/NO20002735L/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4431960A (en) * | 1981-11-06 | 1984-02-14 | Fdx Patents Holding Company, N.V. | Current amplifying apparatus |
GB2140195A (en) * | 1982-12-03 | 1984-11-21 | Electric Power Res Inst | Cryogenic cable and method of making same |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040038576A (en) * | 2002-10-30 | 2004-05-08 | 석병관 | Capacitor technique apply energy save and super conducting electric cable |
Also Published As
Publication number | Publication date |
---|---|
GB2331851A9 (en) | |
IL136071A0 (en) | 2001-05-20 |
EA002609B1 (en) | 2002-06-27 |
CN1279809A (en) | 2001-01-10 |
PE20000199A1 (en) | 2000-03-09 |
BR9815008A (en) | 2000-10-03 |
NO20002735D0 (en) | 2000-05-26 |
PL340678A1 (en) | 2001-02-12 |
AU737317B2 (en) | 2001-08-16 |
KR20010032358A (en) | 2001-04-16 |
EP1034543A1 (en) | 2000-09-13 |
ZA9810939B (en) | 1999-05-31 |
JP2001525647A (en) | 2001-12-11 |
GB2331851A (en) | 1999-06-02 |
NO20002735L (en) | 2000-05-26 |
GB9725318D0 (en) | 1998-01-28 |
AU1965699A (en) | 1999-06-16 |
EA200000589A1 (en) | 2000-10-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2560867C (en) | A system for transmitting current including magnetically decoupled superconducting conductors | |
EP1034549A1 (en) | High voltage induction device | |
AU737317B2 (en) | Magnetic energy storage | |
EP1034581B1 (en) | A power induction device | |
AU737248B2 (en) | A power transformer | |
WO1999029006A1 (en) | A fault current limiter | |
WO2000074211A1 (en) | A power cable | |
WO2000039815A1 (en) | Magnetic energy storage | |
CA2310595A1 (en) | Magnetic energy storage | |
Bogner et al. | Problems with conductors and dielectrics for cryogenic cables | |
WO2000007286A1 (en) | Rotating electric machine with superconducting winding and a method for manufacturing the same | |
GB2350485A (en) | A fault current limiter | |
MXPA00005157A (en) | Magnetic energy storage | |
GB2350507A (en) | Resonant energy storage device | |
GB2350486A (en) | A power transformer / reactor | |
GB2350475A (en) | Power cable termination | |
WO2000039816A1 (en) | A high voltage induction device | |
WO2000039820A1 (en) | A high voltage transformer | |
WO2000039818A1 (en) | A high voltage inductor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 136071 Country of ref document: IL Ref document number: 98811469.0 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AT AU AZ BA BB BG BR BY CA CH CN CU CZ CZ DE DE DK DK EE EE ES FI FI GB GD GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 19656/99 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 504490 Country of ref document: NZ |
|
ENP | Entry into the national phase |
Ref document number: 2310595 Country of ref document: CA Ref document number: 2310595 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020007005594 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2000/005157 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998964467 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200000589 Country of ref document: EA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09554912 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 1998964467 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: 1020007005594 Country of ref document: KR |
|
WWG | Wipo information: grant in national office |
Ref document number: 19656/99 Country of ref document: AU |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1020007005594 Country of ref document: KR |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1998964467 Country of ref document: EP |