US5146383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular superconducting magnetic energy storage inductor
Assignee: Siemens Energy Inc
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Filing: 1990-06-20
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Granted: 1992-09-08
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Expires: 2010-06-20
Abstract
Abstract A modular superconducting magnetic energy storage (SMES) inductor includes a plurality of vertically adjacent winding modules each comprising a number of serially connected concentric solenoid coils. Pairs of adjacent winding modules are connected in series to form paired winding modules each of which occupies a compartment in a sectioned dewar. Only a single shorting switch is provided for each winding module for use during an emergency dump of cryogenic fluid from the dewar. Adjacent paired winding modules can be connected in series by a single connector penetrating sectional plates between dewar compartments. Arrangements of bypass switches provide the capability of taking either a single winding module or a pair of winding modules out of service while the remaining winding modules and pairs of winding modules remain in service. Any number of pairs of winding modules can be connected in one or more series circuits each serviced by its own power conversion system to achieve a desired energy storage capability.
Inventors
- 👤 James R. Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:24
CPC Classifications
H; H01; H01F; H01F6/00; H01F6/003; H02; H02H; H02H7/00; H02H7/001; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/883
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
108 words
A modular superconducting magnetic energy storage inductor apparatus comprising: an annular dewar structure oriented in a substantially horizontal plane and containing a cryogenic fluid; a plurality of winding modules each comprising a multi-layer, layer wound winding of superconducting material, said winding modules stacked one on top of another in said annular dewar and immersed in said cryogenic fluid; means interconnecting said plurality of winding modules in at least one electrical circuit; and shorting switch means comprising for each winding module a single shorting switch connected across the winding of the winding module and selectively shorting the winding during an emergency dump of said cryogenic fluid from said dewar.
Claim 2
Dependent Claim
108 words
A modular superconducting magnetic energy storage inductor apparatus comprising: an annular dewar structure oriented in a substantially horizontal plane and containing a cryogenic fluid; a plurality of winding modules each comprising a multi-layer, layer wound winding of superconducting material, said winding modules stacked one on top of another in said annular dewar and immersed in said cryogenic fluid; means interconnecting said plurality of winding modules in at least one electrical circuit; and shorting switch means comprising for each winding module a single shorting switch connected across the winding of the winding module and selectively shorting the winding during an emergency dump of said cryogenic fluid from said dewar.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 wherein said multi-layer, layer wound winding of each winding module comprises a plurality of concentric solenoid coils connected in series.
Claim 4
Dependent Claim
19 words
The apparatus of claim 2 wherein said plurality of concentric solenoid coils comprises an even number of said coils.
Claim 5
Dependent Claim
33 words
The apparatus of claim 2 wherein radially adjacent solenoid coils in said winding modules are wound in opposite directions with one adjacent end of said radially adjacent solenoid coils connected together in series.
Claim 6
Dependent Claim
66 words
The apparatus of claim 2 wherein said winding modules are paired to form pairs of vertically adjacent winding modules by connectors connecting one end coil of one winding module in a pair in series with one end coil of another winding module of the pair, and with the other end coils of said one and said other winding module in the pair connected to terminal leads.
Claim 7
Dependent Claim
42 words
The apparatus of claim 5 wherein said single shorting switch for a first of said winding modules in a pair shunts said first winding module and the single shorting switch for the second winding module in the pair shunts said terminal leads.
Claim 8
Dependent Claim
15 words
The apparatus of claim 5 including bypass means selectively bypassing a pair of winding modules.
Claim 9
Dependent Claim
69 words
The apparatus of claim 7 wherein said bypass means comprises a shunt in parallel with said pair of winding modules, a first bypass switch in series with said series connected first and second winding modules, which first bypass switch is normally closed and is only opened for bypassing, and a second bypass switch in said shunt, said second bypass switch being normally open and only being closed for bypassing.
Claim 10
Dependent Claim
36 words
The apparatus of claim 5 wherein said dewar is divided into vertically aligned sections by generally horizontal section plates and wherein each pair of winding modules is located in one of said sections of said dewar.
Claim 11
Dependent Claim
31 words
The apparatus of claim 9 wherein adjacent pairs of winding modules are connected in series by a single connector extending through a section plate separating said adjacent pairs of winding modules.
Claim 12
Dependent Claim
26 words
The apparatus of claim 5 including a plurality of power conversion systems, and means connecting at least one pair of modules to each power conversion system.
Claim 13
Dependent Claim
21 words
The apparatus of claim 11 wherein a group of pairs of modules are connected in series to each power conversion system.
Claim 14
Dependent Claim
24 words
The apparatus of claim 12 including bypass means for bypassing a selected pair of winding modules in a group of pairs of winding modules
Claim 15
Dependent Claim
44 words
The apparatus of claim 13 wherein said bypass means comprises a shunt in parallel with the selected pair of winding modules, a first bypass switch connected in series with the selected pair of winding modules and a second bypass switch connected in said shunt.
Claim 16
Dependent Claim
39 words
The apparatus of claim 5 wherein adjacent ends of said end coils in said vertically adjacent pair of winding modules are connected in series, and wherein adjacent ends of said other end coils are connected to said terminal leads.
Claim 17
Dependent Claim
32 words
The apparatus of claim 15 wherein adjacent coils in each winding module are wound in opposite directions and including connections connecting adjacent ends of the oppositely wound adjacent coils together in series.
Claim 18
Dependent Claim
28 words
The apparatus of claim 16 wherein said one end coil of each winding module in each pair of winding modules is the outermost of said concentric solenoid coils.
Claim 19
Dependent Claim
46 words
The apparatus of claim 5 wherein the remote ends of said one end coils of the winding modules in said pair of winding modules are connected by said connecting means, and where the remote ends of the other end coils are connected to said terminal leads.
Claim 20
Dependent Claim
48 words
The apparatus of claim 18 wherein adjacent solenoid coils in each winding module of said pair of winding modules are wound in opposite directions and including connecting means connecting one adjacent end of said adjacent solenoid coils together to connect the coils of each winding module in series.
Claim 21
Dependent Claim
28 words
The apparatus of claim 19 wherein said one end coil of each winding module in each pair of winding modules is the outermost of said concentric solenoid coils.
Claim 22
Dependent Claim
13 words
The apparatus of claim 2 including means for bypassing a selected winding module.
Claim 23
Dependent Claim
53 words
The apparatus of claim 21 wherein said bypass means includes a bypass switch in series with the solenoid coils of said winding module said bypass switch being closed for normal operation and for said emergency dump but being open together with said single shorting switch for the module for bypassing said winding module.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-08 | 1996-03-09 | 1996-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-08 | 2000-03-09 | 2000-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-08 | 2004-03-09 | 2004-09-08 | $7700.00 | Window Closed / Lapsed |