Model-based combined cycle power plant load control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 26, 2017
Grant Date -
Jun 16, 2016
app pub date -
May 11, 2015
filing date -
Dec 15, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A control system uses a modeled steam turbine megawatt (power) change attributed to a gas turbine demand change (i.e., a steam turbine to gas turbine transfer function) within a conventional closed loop feedback control scheme to perform control of a combined cycle power plant. This control system implements a form of internal model control and provides better unit megawatt (power) set-point tracking and disturbance variable rejection for overall more robust control, and thus operates to optimize the gas turbine operation of the combined cycle power plant in a manner that provides cost savings over time.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
EMERSON PROCESS MANAGEMENT POWER & WATER SOLUTIONS INC | 200 BETA DRIVE PITTSBURGH PA 15238 |
International Classification(s)

- 2015 Application Filing Year
- F01K Class
- 353 Applications Filed
- 273 Patents Issued To-Date
- 77.34 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Cheng, Xu | Pittsburgh, US | 115 | 1867 |
# of filed Patents : 115 Total Citations : 1867 | |||
Gerideau,, III Benjamin F | Monroeville, US | 1 | 5 |
# of filed Patents : 1 Total Citations : 5 | |||
Huff, Frederick C | Pittsburgh, US | 11 | 763 |
# of filed Patents : 11 Total Citations : 763 | |||
Rao, Ranjit R | Gibsonia, US | 3 | 13 |
# of filed Patents : 3 Total Citations : 13 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F01K Class
- 25 % this patent is cited more than
- 8 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 26, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 26, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Legal Events
Date | Code | Event | Description |
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Feb 20, 2025 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
Feb 18, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Sep 26, 2017 | I | Issuance | |
Sep 06, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 16, 2016 | P | Published | |
May 11, 2015 | F | Filing | |
Apr 09, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RAO, RANJIT R.;CHENG, XU;HUFF, FREDERICK C.;AND OTHERS;REEL/FRAME:036304/0290 Owner name: EMERSON PROCESS MANAGEMENT POWER & WATER SOLUTIONS Effective Date: Apr 09, 2015 |

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