US5627760A
Expired / Lapsed
US
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Method and apparatus for real time recursive parameter energy management system
Assignee: Siemens Power Transmission and Distribution Inc
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Filing: 1995-04-17
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Granted: 1997-05-06
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Expires: 2015-04-17
Abstract
Abstract A new method and apparatus for recursive parameter estimation which closely approximates actual values is taught. Briefly stated, the within invention estimates impedance parameters of network branches in both on-line and off-line modes, providing accurate estimation of branch parameters in the presence of noise in measurements and rejecting gross measurement errors, by use of a Kalman type Markov filter scheme using maximum likelihood estimation.
Inventors
- 👤 Ilya Slutsker
- 👤 Sasan Mokhtari
- 👤 Kevin Clements
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:25
CPC Classifications
G; G01; G01R; G01R21/00; G01R21/133; H; H02; H02J; H02J3/00; H02J3/001; H02J3/0014
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
111 words
An energy management system for recursive parameter energy management control, comprising: measurement means for measuring the status and settings of a power grid or subsystem (grid) and producing representative grid data thereof; and a computer having memory means for storing said grid data and further having a program means for analyzing said grid data and producing values representative of the impedance parameters of said grid, said program means including means for separating said grid data into a plurality of sub-grid data sets, each of said sub-grid data sets containing a predetermined number of unknown grid impedance parameters and means for recursively modeling each of said sub-grid data sets into Markov processes.
Claim 2
Dependent Claim
111 words
An energy management system for recursive parameter energy management control, comprising: measurement means for measuring the status and settings of a power grid or subsystem (grid) and producing representative grid data thereof; and a computer having memory means for storing said grid data and further having a program means for analyzing said grid data and producing values representative of the impedance parameters of said grid, said program means including means for separating said grid data into a plurality of sub-grid data sets, each of said sub-grid data sets containing a predetermined number of unknown grid impedance parameters and means for recursively modeling each of said sub-grid data sets into Markov processes.
Claim 3
Independent Claim
102 words
A method for energy management of a power grid or subsystem (Grid) for management control, comprising the steps of: A. measuring the status and settings of a Grid; B. producing representative grid data thereof; C. separating said grid data into a plurality of sub-grid data sets, each of said sub-grid data sets containing a predetermined number of unknown grid impedance parameters; and D. modeling each of said sub-grid data sets into Markov processes and solving for said unknown grid impedance parameters into an approximation thereof; E. recursively repeating step (D) until said approximation approaches and drops below a predetermined acceptable error level.
Claim 4
Independent Claim
102 words
A method for energy management of a power grid or subsystem (Grid) for management control, comprising the steps of: A. measuring the status and settings of a Grid; B. producing representative grid data thereof; C. separating said grid data into a plurality of sub-grid data sets, each of said sub-grid data sets containing a predetermined number of unknown grid impedance parameters; and D. modeling each of said sub-grid data sets into Markov processes and solving for said unknown grid impedance parameters into an approximation thereof; E. recursively repeating step (D) until said approximation approaches and drops below a predetermined acceptable error level.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-05-05 | 2000-11-04 | 2001-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-05-05 | 2004-11-04 | 2005-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-05-05 | 2008-11-04 | 2009-05-06 | $7700.00 | Window Closed / Lapsed |