System and method for displaying real-time turbine corrected output and heat rate

• US 6,898,540 B2
• Filed: 11/12/2002
• Issued: 05/24/2005
• Est. Priority Date: 11/12/2002
• Status: Expired due to Fees

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Davies, Stephen J.
• Primary Examiner(s): Hoff, Marc S.
• Assistant Examiner(s): Kim, Paul L
• Application Number:
  US10/291,844
• Publication Number:
  US 20040117148A1
• Time in Patent Office: 924 Days
• Field of Search: 607/73, 702/182, 702/85, 702/105, 702/33, 702/113, 701/100
• US Class Current: 702/85
• CPC Class Codes: G05B 23/0221 Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods

Abstract

A method for generating and displaying in real time performance parameters of a turbine including: monitoring the performance of the turbine and collecting real time data regarding turbine performance; determining a corrected turbine output value and corrected heat rate value from the collected real time data; electronically storing the corrected turbine output value and heat rate value and a corresponding time, and displaying a current corrected turbine output value, heat rate and a corresponding time.

Claims

1. A method for generating and displaying in real time performance parameters of a turbine comprising:

a. monitoring the performance of the turbine and collecting real time data regarding turbine performance;

b. determining a corrected turbine output value from the collected real time data;

c. electronically storing the corrected turbine output value and a corresponding time;

d. displaying a current corrected turbine output value and a corresponding time, wherein the stored corrected turbine output value and its corresponding time become, as the new current corrected turbine output value is determined, historical data regarding a past corrected turbine output value at the corresponding time, and

e. displaying the stored historical information regarding the past corrected turbine power output juxtaposed with the current corrected turbine output value.

2. A method for generating and displaying in real time performance parameters of a turbine comprising:

a. monitoring the performance of the turbine and collecting real time data regarding turbine performance;

b. determining a corrected turbine output value from the collected real time data;

c. electronically storing the corrected turbine output value and a corresponding time;

d. displaying the current corrected turbine output value and a corresponding time, wherein the corrected turbine output value is determined from the following algorithm;

MW_corr=DWATT*f(AFPAP)*f(AFPCS)*f(AFPEP)*f(CMHUM)*f(CTIMX)*f(DPF)*f(TNH)*f(WQJ)*f(AUX)

where;

MW_corr is the corrected turbine power output (MW);

DWATT is a measured gas turbine-generator power output (MW);

f(AFPAP) is a function of measured atmospheric pressure;

f(AFPCS)is a function of measured inlet pressure loss;

f(AFPEP)is a function of measured exhaust pressure loss;

f(CMHUM)is a function of calculated compressor inlet humidity;

f(CTIMX)is a function of measured compressor inlet temperature;

f(DPF)is a function of calculated generator power factor;

f(TNH)is a function of measured turbine rotational speed;

f(WQJ) is a function of measured water or steam injection flow, and f(AUX)is a function of assumed auxiliary power loss.

3. A method for generating and displaying in real time performance parameters of a turbine comprising:

a. monitoring the performance of the turbine and collecting real time data regarding turbine performance;

b. determining a corrected turbine output value from the collected real time data;

c. electronically storing the corrected turbine output value and a corresponding time;

d. displaying a current corrected turbine output value and a corresponding time, and

e. displaying historical information regarding the stored corrected turbine power output juxtaposed with the corrected turbine output value.

4. A method for generating and displaying in real time performance parameters of a turbine comprising:

a. monitoring the performance of the turbine and collecting real time data regarding turbine performance;

b. determining a corrected turbine heat rate from the collected real time data;

c. electronically storing the corrected turbine heat rate value and a corresponding time;

d. displaying a current corrected turbine heat rate value and its corresponding time, wherein the stored corrected turbine heat rate value and its corresponding time become, as a the current corrected turbine heat rate value is determined, historical data regarding a past corrected turbine heat rate value and the corresponding time for the past corrected turbine heat rate value, and

e. displaying the stored historical information regarding the past corrected turbine heat rate value juxtaposed with the current corrected turbine heat rate value.

5. A method for generating and displaying in real time performance parameters of a turbine comprising:

a. monitoring the performance of the turbine and collecting real time data regarding turbine performance;

b. determining a corrected turbine heat rate from the collected real time data;

c. electronically storing the corrected turbine heat rate value and a corresponding time;

d. displaying a current corrected turbine heat rate value and its corresponding time, and

wherein the corrected turbine heat rate value is determined from the following algorithm;

HR_corr=FQ*LHV*CF/DWATT*f(AFPAP)*f(AFPCS)*f(AFPEP)*f(CMHUM)*f(CTIMX)*f(TNH)*f(WQJ)*f(AUX)

where HR_corr is the corrected turbine heat rate;

FQ is a fuel flow to a combustor of the turbine;

LHV is a fuel heating value;

CF is a units conversion factor;

DWATT is a measured turbine power output;

f(AFPAP) is a function of measured atmospheric pressure;

f(AFPCS) is a function of measured inlet pressure loss;

f(AFPEP) is a function of measured turbine exhaust pressure loss;

f(CMHUM)is a function representing turbine compressor inlet humidity;

f(CTIMX) is a function of measured compressor inlet temperature;

f(TNH) is a function of measured turbine rotational speed;

f(WQJ) is a function of measured water or steam injection flow; and

f(AUX) is a function of assumed auxiliary power loss.

6. A method for generating and displaying in real time performance parameters of a turbine comprising:

a. monitoring the performance of the turbine and collecting real time data regarding turbine performance;

b. determining a corrected turbine heat rate from the collected real time data;

c. electronically storing the corrected turbine heat rate value and a corresponding time;

d. displaying a current corrected turbine heat rate value and its corresponding time, and

e. displaying historical information regarding the stored corrected turbine power heat rate juxtaposed with the corrected turbine output heat rate value.