Patent US5673189A successfully refreshed from Google Patents.
US5673189A
Expired / Lapsed
US
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Device for increasing the power yield of the fundamental component of a self-commutated power inverter
Assignee: Siemens AG
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Filing: 1995-08-08
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Granted: 1997-09-30
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Expires: 2015-08-08
Abstract
Abstract A device for increasing the fundamental power yield of a self-commutated inverter with a capacitive storage device. The device is connected to the outputs of a self-commutated inverter, providing at least one single-phase cascade per R, S and T phase. Each single-phase cascade includes a capacitive storage device and a switching device with which the capacitive storage device can be switched into phase and out of phase with respect to the phase with which the cascade is associated.
Inventors
- 👤 Frank Schettler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:03
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/483; H02M7/49; H02J; H02J3/00; H02J3/18; H02J3/1821; H02J3/1835; H02J3/1842; H02J3/1857; H02M1/00; H02M1/0095; H02M7/4835; H02M7/4837; H02M7/487; Y; Y02; Y02E; Y02E40/00; Y02E40/20
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
77 words
A device for increasing the fundamental power yield of a self commutated inverter having a plurality of capacitive storage devices in a multiplex network said device comprising: a single phase cascade for each phase of the multi-phase configuration wherein each single phase cascade includes, i. a capacitive storage device; ii. a switching device for selectively switching the capacitive storage device into phase and out of phase with respect to the phase with which that cascade is associated.
Claim 2
Independent Claim
77 words
A device for increasing the fundamental power yield of a self commutated inverter having a plurality of capacitive storage devices in a multiplex network said device comprising: a single phase cascade for each phase of the multi-phase configuration wherein each single phase cascade includes, i. a capacitive storage device; ii. a switching device for selectively switching the capacitive storage device into phase and out of phase with respect to the phase with which that cascade is associated.
Claim 3
Dependent Claim
13 words
The device of claim 1, wherein said switching device comprises two two-point modules.
Claim 4
Dependent Claim
13 words
The device of claim 1, wherein said switching device comprises a three-point module.
Claim 5
Dependent Claim
13 words
The device of claim 1, wherein said capacitive storage device comprises a capacitor.
Claim 6
Dependent Claim
17 words
The device of claim 1, wherein said capacitive storage device comprises two capacitors of the same size.
Claim 7
Dependent Claim
33 words
The device of claim 1 wherein said capacitive storage device includes one capacitor and said switching device includes two two-point modules, each of said two-point modules electrically connected in parallel with said capacitor.
Claim 8
Dependent Claim
34 words
The device of claim 2 wherein said capacitive storage device includes one capacitor and said switching device includes two two-point modules, each of said two-point modules are electrically connected in parallel with said capacitor.
Claim 9
Dependent Claim
33 words
The device of claim 4 wherein said capacitive storage device includes one capacitor and said switching device includes two two-point modules, each of said two-point modules electrically connected in parallel with said capacitor.
Claim 10
Dependent Claim
41 words
The device of claim 1, wherein said switching device includes one three-point module and said capacitive storage devices includes two capacitors of the same size which are electrically connected in series, said capacitive storage devices and three-point module being electrically connected.
Claim 11
Dependent Claim
41 words
The device of claim 3, wherein said switching device includes one three-point module and said capacitive storage device includes two capacitors of the same size which are electrically connected in series, said capacitive storage devices and three-point module being electrically connected.
Claim 12
Dependent Claim
42 words
The device of claim 5 wherein said capacitive storage device includes one three-point module and said capacitive storage device includes two capacitors of the same size which are electrically connected in series, said capacitive storage devices and three-point module being electrically connected.
Claim 13
Dependent Claim
21 words
The device of claim 1, wherein two of said single-phase cascades of the same phase are combined into one structural unit.
Claim 14
Dependent Claim
38 words
The device of claim 1, said capacitive storage device including two capacitors of the same size electrically connected in series and said switching device including two three-point modules electrically connected in parallel with said capacitors connected in series.
Claim 15
Dependent Claim
47 words
The device of claim 3, said capacitive storage device including two capacitors of the same size electrically connected in series and said switching device further includes a second three-point module wherein the two three-point modules are electrically connected in parallel with said capacitors being connected in series.
Claim 16
Dependent Claim
28 words
The device of claim 5, said two capacitors are electrically connected in series and said switching device including two three-point modules electrically connected in parallel with said capacitors.
Claim 17
Dependent Claim
35 words
The device of claim 12, said capacitive storage device including two capacitors of the same size electrically connected in series and said switching device including two three-point modules electrically connected in parallel with said capacitors.
Claim 18
Dependent Claim
24 words
The device of claim 2, wherein said two-point module is a bridge valve leg including two switched power semiconductor switches with respective free-wheeling diodes.
Claim 19
Dependent Claim
51 words
The device of claim 3, wherein said three-point module is a bridge valve leg including four switched power semiconductor switches, four free-wheeling diodes each of which is electrically connected in parallel to one of said switched power semiconductor switches, and two series-connected midpoint diodes connected in parallel to said free-wheeling diodes.
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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) | 2000-09-29 | 2001-03-31 | 2001-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-29 | 2005-03-31 | 2005-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-29 | 2009-03-31 | 2009-09-30 | $7700.00 | Window Closed / Lapsed |