Method for correcting original component characteristic maps of a gas turbine

Abstract

This disclosure provides a method for correcting the original component characteristic diagram of a gas turbine, comprising: extracting a plurality of first speed lines and a first speed corresponding to each first speed line from the original component characteristic diagram of the gas turbine; selecting a plurality of measurement points during the test run of the gas turbine and obtaining a set of measurement parameters corresponding to each measurement point; extracting a second speed corresponding to each set of measurement parameters based on the test run data of the gas turbine, and constructing an initial correction vector based on the measurement parameters; and obtaining a target correction vector for each first speed line according to the first speed, the second speed, and the initial correction vector, so as to correct each first speed line by means of the target correction vector.

Description

Technical Field

[0001] This disclosure relates to the field of modeling and simulating gas turbine systems, and in particular, to a method for correcting the original component characteristic diagrams of a gas turbine. Background Technology

[0002] The performance model of a gas turbine can be used to simulate the control, diagnosis and prediction of a gas turbine. In practical applications, it can save costs and effectively avoid the dangers that may arise during actual operation.

[0003] The performance model of a gas turbine relies heavily on the accuracy of its component characteristic maps. As the gas turbine operates over time, the characteristics of each component degrade. After this performance degradation, the actual component characteristic maps will deviate from the original maps. Therefore, the original component characteristic maps need to be corrected to ensure that the corrected maps accurately represent the true performance parameters of the gas turbine after performance degradation.

[0004] Currently, most methods for correcting the original component feature map require multiple corrections and the extraction of numerous correction vectors, which is not only time-consuming but also subject to many factors affecting accuracy. Summary of the Invention

[0005] To overcome at least one of the above-mentioned defects in the prior art, embodiments of this disclosure provide a method for correcting the original component characteristic diagram of a gas turbine. The correction can be based on one or more sets of measurement parameters, requiring few correction vectors and relying only on the accuracy of the measurement parameters, with fewer influencing factors.

[0006] To achieve the above objectives, this disclosure provides a method for correcting the original component characteristic diagram of a gas turbine, comprising: extracting a plurality of first speed lines and a first speed corresponding to each first speed line from the original component characteristic diagram of the gas turbine; selecting a plurality of measurement points during the test run of the gas turbine and obtaining a set of measurement parameters corresponding to each measurement point; extracting a second speed corresponding to each set of measurement parameters based on the test run data of the gas turbine, and constructing an initial correction vector based on the measurement parameters; and obtaining a target correction vector for each first speed line according to the first speed, the second speed, and the initial correction vector, so as to correct each first speed line by means of the target correction vector.

[0007] In one illustrative embodiment, the original component characteristic profiles include a barometer component characteristic profile and / or a turbine component characteristic profile.

[0008] In one illustrative embodiment, the step of extracting a first speed from a plurality of first speed lines from the original component characteristic diagram of the gas turbine includes: the original component characteristic diagram includes a plurality of equivalent speed lines; selecting at least a portion of the equivalent speed lines as the first speed lines; and extracting the first speed corresponding to the first speed lines.

[0009] In one illustrative embodiment, the step of selecting several measurement points during the test run of the gas turbine and obtaining a set of measurement parameters corresponding to each measurement point includes: drawing multiple working points during the test run of the gas turbine; selecting at least a portion of the working points as measurement points; and obtaining a set of measurement parameters corresponding to each measurement point from the test run data of the gas turbine.

[0010] In one illustrative embodiment, the extraction of a second rotational speed corresponding to each set of measurement parameters based on the gas turbine test data, and the construction of an initial correction vector based on the measurement parameters, includes: extracting the measured rotational speed corresponding to the measurement parameters at each measurement point based on the test data; correcting the measured rotational speed based on the measured temperature of the test data to obtain a second rotational speed line corresponding to the measurement parameters; extracting the second rotational speed corresponding to each second rotational speed line; and obtaining multiple correction coefficients based on each set of measurement parameters, and constructing the initial correction vector based on the multiple correction coefficients.

[0011] In one illustrative embodiment, obtaining a target correction vector for each first speed line based on the first speed, the second speed, and the initial correction vector, and then correcting each first speed line using the target correction vector, includes using the initial correction vector as the target correction vector for each first speed line if there is only one set of the measured parameters.

[0012] In one illustrative embodiment, the step of obtaining a target correction vector for each first speed line based on the first speed, the second speed, and the initial correction vector, and then correcting each first speed line using the target correction vector, further includes obtaining the target correction vector based on the relationship between the first speed and the minimum second speed and / or the maximum second speed for an initial correction vector that includes multiple sets of the measured parameters.

[0013] In one illustrative embodiment, the step of obtaining the target correction vector based on the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed, for an initial correction vector including multiple sets of the measured parameters, includes obtaining the target correction vector of the first rotational speed line corresponding to the first rotational speed by linear interpolation of the initial correction vector when the first rotational speed is between the minimum second rotational speed and the maximum second rotational speed.

[0014] In one illustrative embodiment, the step of obtaining the target correction vector based on the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed, for an initial correction vector including multiple sets of the measured parameters, further includes, when the first rotational speed is less than the minimum second rotational speed, using the initial correction vector corresponding to the minimum second rotational speed as the target correction vector of the first rotational speed line.

[0015] In one illustrative embodiment, the step of obtaining the target correction vector based on the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed, for an initial correction vector including multiple sets of the measured parameters, further includes, when the first rotational speed is greater than the maximum second rotational speed, using the initial correction vector corresponding to the maximum second rotational speed as the target correction vector of the first rotational speed line.

[0016] The method for correcting the original component characteristic diagram of a gas turbine according to the above embodiments of this disclosure constructs an initial correction vector based on the measurement parameters actually measured during the test run. It relies solely on the accuracy of the measurement parameters and is unaffected by other factors. Furthermore, it can correct initial correction vectors constructed from one or more sets of measurement parameters, requiring less computation and exhibiting wide applicability. Attached Figure Description

[0017] Figure 1 This is a flowchart of a method for correcting the original component characteristic diagram of a gas turbine according to an illustrative embodiment of the present invention;

[0018] Figure 2 yes Figure 1 The flowchart illustrating the illustrative embodiment shows a modification of the gas turbine;

[0019] Figure 3 yes Figure 2 A flowchart of step A in the illustrative embodiment shown;

[0020] Figure 4 yes Figure 2 The flowchart of step B in the illustrative embodiment shown; and

[0021] Figure 5 yes Figure 2 The flowchart of step C in the illustrative embodiment shown. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. The terminology used herein is merely for describing specific embodiments and is not intended to limit the invention.

[0023] The terms “comprising,” “including,” etc., as used herein indicate the presence of the described features, steps, operations, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components. All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification and not in an idealized or overly rigid way.

[0024] In this document, unless otherwise specified, directional terms such as "up," "down," "left," "right," "inner," and "outer" are used to indicate orientation or positional relationships based on the accompanying drawings, and are only for the convenience of describing the invention, and do not indicate or imply that the device, element, or component referred to must have a specific orientation, or be constructed or operated in a specific orientation. It should be understood that when the absolute position of the described object changes, the relative positional relationships they represent may also change accordingly. Therefore, these directional terms should not be construed as limiting the invention.

[0025] When using expressions such as "at least one of A, B, and C," the expression should generally be interpreted in accordance with the meaning commonly understood by a person skilled in the art (e.g., "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C, etc.). Similarly, when using expressions such as "at least one of A, B, or C," the expression should generally be interpreted in accordance with the meaning commonly understood by a person skilled in the art (e.g., "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C, etc.).

[0026] Figure 1 This is a flowchart of a method for modifying the original component characteristic diagram of a gas turbine according to an illustrative embodiment of the present invention.

[0027] An illustrative embodiment of the present invention provides a method for correcting the original component characteristic diagram of a gas turbine, such as... Figure 1As shown, the process includes: extracting several first speed lines and the first speed corresponding to each first speed line from the original component characteristic diagram of the gas turbine; selecting several measurement points during the gas turbine test run and obtaining a set of measurement parameters corresponding to each measurement point; extracting the second speed corresponding to each set of measurement parameters based on the gas turbine test run data, and constructing an initial correction vector based on the measurement parameters; obtaining the target correction vector for each first speed line based on the first speed, the second speed, and the initial correction vector, so as to correct each first speed line through the target correction vector.

[0028] Figure 2 yes Figure 1 The flowchart shown illustrates a modification of the gas turbine in a schematic embodiment.

[0029] In one illustrative embodiment, such as Figure 2 As shown, the method for correcting the original component feature diagram of a gas turbine includes:

[0030] Step A: Extract m first speed lines and the first speed {n1, n2, ..., n} corresponding to each first speed line from the original component characteristic diagram of the gas turbine. m};

[0031] Step B: During the commissioning of the gas turbine, select a measurement points and obtain a set of measurement parameters corresponding to each measurement point. The measurement parameters include, but are not limited to, flow rate (w), pressure ratio (π), and efficiency (η).

[0032] Step C: Extract the second rotational speed {n′1,n′2,…,n′} corresponding to each set of measured parameters based on the gas turbine test data. a}, and construct an initial correction vector {p′1,p′2,…,p′} based on the measurement parameters. a};

[0033] Step D: Based on the first rotational speed, the second rotational speed, and the initial correction vector, obtain the target correction vector {p1, p2, ..., p} for each first rotational speed line. m}, so as to correct each first speed line through the target correction vector.

[0034] Where m represents the number of the first rotational speed lines, n m The first rotational speed is represented by the m-th first rotational speed line, w represents the flow rate, π represents the pressure ratio, η represents the efficiency, and n′ represents the efficiency. a The second rotational speed, p′, is represented by the second rotational speed line a. a Characterized as an initial correction vector obtained based on the a-th group of measurement parameters, p m It is represented as the target correction vector for correcting the m-th first speed line.

[0035] According to embodiments of this disclosure, the original component characteristic diagrams include, but are not limited to, barometer component characteristic diagrams and / or turbine component characteristic diagrams.

[0036] Figure 3 yes Figure 2 The flowchart of step A in the illustrative embodiment shown.

[0037] According to embodiments of this disclosure, such as Figure 2 and Figure 3 As shown, the first speed extracted from several first speed lines in the original component characteristic diagram of the gas turbine includes: setting several equivalent conversion speed lines in the original component characteristic diagram; selecting at least a portion of the equivalent conversion speed lines as the first speed lines; and extracting the first speed corresponding to the first speed lines.

[0038] In one illustrative embodiment, step A involves extracting m first speed lines and the first speed corresponding to each first speed line from the original component characteristic diagram of the gas turbine, including:

[0039] Step A1: The original component characteristic diagram includes m lines with equivalent rotational speeds;

[0040] Step A2: Select all m iso-conversion speed lines as the first speed line;

[0041] Step A3: Extract the first rotational speed {n1, n2, ..., n} corresponding to the m first rotational speed lines. m}

[0042] Figure 4 yes Figure 2 The flowchart for step B of the illustrative embodiment shown.

[0043] According to embodiments of this disclosure, such as Figure 2 and Figure 4 As shown, the gas turbine commissioning process selects several measurement points and obtains a set of measurement parameters corresponding to each measurement point, including: plotting multiple operating points during the gas turbine commissioning process; selecting at least some of the operating points as measurement points; and obtaining a set of measurement parameters corresponding to each measurement point from the gas turbine commissioning data.

[0044] In one illustrative embodiment, step B involves selecting 'a' measurement points during the gas turbine commissioning process and obtaining a set of measurement parameters corresponding to each measurement point, including:

[0045] Step B1: Plot b operating points during the gas turbine commissioning process;

[0046] Step B2: Select a points from b working points as test points, where a < or = b;

[0047] Step B3: Obtain a set of measurement parameters corresponding to a measurement points from the gas turbine test data. The measurement parameters include, but are not limited to, flow rate (w), pressure ratio (π), and efficiency (η).

[0048] Figure 5 yes Figure 2 The flowchart of step C in the illustrative embodiment shown.

[0049] According to embodiments of this disclosure, such as Figure 2 and Figure 5 As shown, the process of extracting the second rotational speed corresponding to each set of measurement parameters based on the test data of the gas turbine, and constructing an initial correction vector based on the measurement parameters includes: extracting the measured rotational speed corresponding to the measurement parameters at each measurement point based on the test data; correcting the measured rotational speed based on the measured temperature of the test data to obtain the second rotational speed line corresponding to the measurement parameters; extracting the second rotational speed corresponding to each second rotational speed line; obtaining multiple correction coefficients based on each set of measurement parameters, and constructing an initial correction vector based on the multiple correction coefficients.

[0050] In one illustrative embodiment, step C, based on the gas turbine test data, extracts the second rotational speed corresponding to each set of measured parameters (flow rate (w), pressure ratio (π), and efficiency (η)), and constructs an initial correction vector based on the measured parameters, including:

[0051] Step C1: Extract the measured rotational speeds corresponding to the measurement parameters at a measurement points based on the test run data;

[0052] Step C2: Correct the measured speed based on the measured temperature from the test run data to obtain a second speed line corresponding to the measured parameters;

[0053] Step C3: Extract the second rotational speed {n′1,n′2,…,n′} corresponding to the second rotational speed line a. a};

[0054] Step C4: Obtain multiple correction coefficients based on each set of measurement parameters, and construct the initial correction vector based on the multiple correction coefficients.

[0055] Specifically, in step C4, a set of initial correction coefficients obtained using methods including but not limited to gas path analysis includes p w =w A / w′ A p π =(π) A -1) / (π′ A -1), p η =η A / η′ A ;

[0056] Where, p wp is represented by the correction factor corresponding to the converted flow rate. π Characterized by the correction factor corresponding to the pressure ratio; p η The efficiency correction coefficient, w A The flow rate, w′, is represented as the flow rate of the original component feature map. A Characterized as flow rate measured based on test data; π A The pressure ratio, π′, is represented by the original component feature map. A Characterized as the pressure ratio measured based on test data, η A The efficiency represented by the original component feature map, η′ A The efficiency is represented by actual measurements based on test data.

[0057] Furthermore, the initial correction vector constructed based on the initial correction coefficients of group a includes {p′1, p′2, ..., p′}. a}

[0058] Where p represents the initial correction vector.

[0059] According to embodiments of this disclosure, such as Figure 2 As shown, the target correction vector for each first speed line is obtained based on the first speed, the second speed, and the initial correction vector, so that each first speed line is corrected by the target correction vector. This includes using the initial correction vector as the target correction vector for each first speed line when there is only one set of measurement parameters.

[0060] In one illustrative embodiment, step D, obtaining a target correction vector for each first speed line based on the first speed, the second speed, and the initial correction vector, and then correcting each first speed line using the target correction vector, includes:

[0061] Step D1: Determine how many sets of measurement parameters are included in the initial correction vector;

[0062] Step D11: For an initial correction vector p′1 with only one set of measurement parameters, use the initial correction vector as the target correction vector for each first speed line, as shown in Equation 1 below:

[0063]

[0064] According to embodiments of this disclosure, such as Figure 2 As shown, the target correction vector for each first speed line is obtained based on the first speed, the second speed, and the initial correction vector. The correction of each first speed line by the target correction vector also includes obtaining the target correction vector based on the relationship between the first speed and the minimum second speed and / or the maximum second speed for the initial correction vector that includes multiple sets of measurement parameters.

[0065] In one illustrative embodiment, step D12: For an initial correction vector including a set of measurement parameters, determine the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed to obtain the target correction vector.

[0066] According to embodiments of this disclosure, such as Figure 2 As shown, for an initial correction vector that includes multiple sets of measurement parameters, the target correction vector is obtained based on the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed. This includes obtaining the target correction vector of the first rotational speed line corresponding to the first rotational speed by performing linear interpolation on the initial correction vector when the first rotational speed is between the minimum second rotational speed and the maximum second rotational speed.

[0067] In one illustrative embodiment, step D12: for an initial correction vector including a set of measurement parameters, determining the relationship between the first rotational speed and the minimum and / or maximum second rotational speed to obtain the target correction vector includes:

[0068] Step D121: First rotational speed n i At the minimum second speed n′1 and the maximum second speed n′ a In the case of the initial correction vector, linear interpolation is performed to obtain the value of the first rotational speed n. i The target correction vector p corresponding to the first rotational speed line i As shown in equations 2 to 5 below:

[0069] The boundary of the linear interpolation range is defined as [n L ,n R ], where L is the left boundary and R is the right boundary:

[0070]

[0071]

[0072] When n i At n L With n R Between, p i p can be obtained by calculation using the following formula: i =p′ s(i) +(n i -n′ s(i) ) / (n′ s(i)+1 -n′ s(i) )×(p′ s(i)+1 -p′ s(i) Equation 4

[0073]

[0074] According to embodiments of this disclosure, such as Figure 2As shown, for an initial correction vector that includes multiple sets of measurement parameters, obtaining the target correction vector based on the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed also includes, when the first rotational speed is less than the minimum second rotational speed, using the initial correction vector corresponding to the minimum second rotational speed as the target correction vector for the first rotational speed line.

[0075] In one illustrative embodiment, step D12: for an initial correction vector including a set of measurement parameters, determining the relationship between the first rotational speed and the minimum and / or maximum second rotational speed to obtain the target correction vector includes:

[0076] Step: D122: First rotational speed n i Less than the minimum second rotational speed n L (n L In the case of n′1), the initial correction vector corresponding to the minimum second rotational speed n′1 is used as the target correction vector p of the first rotational speed line. i As shown in equation 6:

[0077] When n i <n L hour:

[0078]

[0079] According to embodiments of this disclosure, such as Figure 2 As shown, for an initial correction vector that includes multiple sets of measurement parameters, obtaining the target correction vector based on the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed also includes, when the first rotational speed is greater than the maximum second rotational speed, using the initial correction vector corresponding to the maximum second rotational speed as the target correction vector of the first rotational speed line.

[0080] In one illustrative embodiment, step D12: for an initial correction vector including a set of measurement parameters, determining the relationship between the first rotational speed and the minimum and / or maximum second rotational speed to obtain the target correction vector includes:

[0081] Step D123: First rotational speed n i Greater than the maximum second speed n R (n R =n′ a In the case of ), the initial correction vector corresponding to the maximum second speed n′1 is used as the target correction vector p of the first speed line. i As shown in equation 7:

[0082]

[0083] In one illustrative embodiment, a method for correcting an original component feature map of a gas turbine includes:

[0084] Step A includes:

[0085] Step A1: The original component characteristic diagram includes 10 lines with equivalent rotational speeds;

[0086] Step A2: Select all 10 equivalent speed lines as the first speed line;

[0087] Step A3: Extract the first rotational speed {n1, n2, ..., n} corresponding to the 10 first rotational speed lines. 10}, in detail, the first rotational speed in step A3 is {n1=1, n2=2, …, n10=10};

[0088] Step B includes:

[0089] Step B1: Plot 6 operating points during the gas turbine commissioning process;

[0090] Step B2: Select 6 out of the 6 working points as test points;

[0091] Step B3: Obtain a set of measurement parameters corresponding to the 6 measurement points from the gas turbine test data. The measurement parameters include, but are not limited to, flow rate (w), pressure ratio (π), and efficiency (η).

[0092] Step C includes:

[0093] Step C1: Extract the measured rotational speeds corresponding to the measurement parameters at 6 measurement points based on the test run data;

[0094] Step C2: Correct the measured speed based on the measured temperature from the test run data to obtain a second speed line corresponding to the measured parameters;

[0095] Step C3: Extract the second rotational speeds {n′1, n′2, ..., n′6} corresponding to the 6 second rotational speed lines. Specifically, the second rotational speeds in step C3 are {n′1 = 2.2, n′2 = 3, n′3 = 4.5, n′4 = 6.1, n′5 = 8, n′6 = 10}.

[0096] Step C4: Obtain multiple correction coefficients based on each set of measurement parameters, and construct the initial correction vector based on the multiple correction coefficients; specifically, the set of initial correction coefficients obtained in step C4 using methods including but not limited to gas path analysis includes p w =w A / w′ A p π =(π) A -1) / (π′ A -1), p η =η A / η′ A ;

[0097] Where, pw p is represented by the correction factor corresponding to the converted flow rate. π Characterized by the correction factor corresponding to the pressure ratio; p η The efficiency correction coefficient, w A The flow rate, w′, is represented as the flow rate of the original component feature map. A Characterized as flow rate measured based on test data; π A The pressure ratio, π′, is represented by the original component feature map. A Characterized as the pressure ratio measured based on test data, η A The efficiency represented by the original component feature map, η′ A The efficiency is represented by actual measurements based on test data.

[0098] Furthermore, the initial correction vector constructed based on the six sets of initial correction coefficients includes {p′1,p′2,…,p′6}.

[0099] Where p represents the initial correction vector.

[0100] Step D includes:

[0101] Step D12: For the initial correction vector including 6 sets of measurement parameters, determine the relationship between the first rotational speed and the minimum and / or maximum second rotational speed to obtain the target correction vector, including:

[0102] Step D121: n′1 <n3<n′6,n′1<n4<n′6,n′1<n5<n′6,n′1<n6<n′6,n′1<n7<n′6,n′1<n8<n′6,n′1<n9<n′6,n′1<n 10 =n′6, therefore, the boundary of the linear interpolation range is defined as [n3, n 10 ], where 3 is the left boundary and 10 is the right boundary:

[0103]

[0104]

[0105] When n i At n L With n R Between, p i It can be obtained by calculation using the following formula:

[0106] p i =p′ s(i) +(n i -n′ s(i) ) / (n′ s(i)+1 -n′ s(i) )×(p′ s(i)+1 -p′s(i) Equation 4

[0107]

[0108] We obtain: p3=p′1+(n3-n′1) / (n′2-n′1)×(p′2-p′1)

[0109] p4=p′2+(n4-n′2) / (n′3-n′2)×(p′3-p′2)

[0110] ...

[0111] p9=p′5+(n9-n′5) / (n′6-n′5)×(p′6-p′5)

[0112] p 10 =p′5+(n 10 -n′5) / (n′6-n′5)×(p′6-p′5)

[0113] Step D122: n1 <n3,p1=p′3,

[0114] n2 <n3,p2=p′3,

[0115] Based on the above p1, p2, ... p9, p 10 The first rotational speed of the first rotational speed line is corrected {n1=1, n2=2, …, n10=10} to obtain the corrected original component characteristic diagram.

[0116] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this disclosure can be combined or combined in several ways, even if such combinations or combinations are not explicitly described in this disclosure. In particular, the features described in the various embodiments and / or claims of this disclosure can be combined or combined in several ways without departing from the spirit and teachings of this disclosure. All such combinations and / or combinations fall within the scope of this disclosure.

[0117] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of correcting an original component map of a gas turbine, characterized by, include: Several first speed lines and the first speed corresponding to each first speed line are extracted from the original component characteristic diagram of the gas turbine. During the test run of the gas turbine, several measurement points are selected, and a set of measurement parameters corresponding to each measurement point is obtained; Based on the gas turbine test data, the second rotational speed corresponding to each set of measured parameters is extracted, and an initial correction vector is constructed based on the measured parameters, including: Based on the test data, the measured rotational speed corresponding to the measurement parameter at each measurement point is extracted; The measured speed is corrected based on the measured temperature from the test data to obtain a second speed line corresponding to the measured parameters; Extract the second rotational speed corresponding to each of the second rotational speed lines; and Multiple correction coefficients are obtained based on each set of measurement parameters, and the initial correction vector is constructed based on the multiple correction coefficients; and Based on the first rotational speed, the second rotational speed, and the initial correction vector, a target correction vector is obtained for each of the first rotational speed lines, and each of the first rotational speed lines is corrected using the target correction vector, including: For an initial correction vector with only one set of the measured parameters, the initial correction vector is used as the target correction vector for each of the first speed lines; For an initial correction vector comprising multiple sets of the measured parameters, the target correction vector is obtained based on the relationship between the first rotational speed and the minimum and / or maximum second rotational speed.

2. The method of claim 1, wherein, The original component characteristic diagrams include barometer component characteristic diagrams and / or turbine component characteristic diagrams.

3. The method according to claim 1 or 2, characterized in that, The first speed, from which several first speed lines are extracted from the original component characteristic diagram of the gas turbine, includes: The original component characteristic diagram includes several lines with equal conversion speeds; Select at least a portion of the equivalent conversion speed lines as the first speed line; and Extract the first rotational speed corresponding to the first rotational speed line.

4. The method of claim 3, wherein, The process of selecting several measurement points during the commissioning of the gas turbine and obtaining a set of measurement parameters corresponding to each measurement point includes: Multiple operating points were plotted during the commissioning of the gas turbine; Select at least a portion of the working points as measurement points; and Obtain a set of measurement parameters corresponding to each measurement point from the test data of the gas turbine.

5. The method of claim 1, wherein, The step of obtaining the target correction vector based on the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed, for an initial correction vector including multiple sets of the measurement parameters, includes: when the first rotational speed is between the minimum second rotational speed and the maximum second rotational speed, obtaining the target correction vector of the first rotational speed line corresponding to the first rotational speed by performing linear interpolation on the initial correction vector.

6. The method of claim 1, wherein, The step of obtaining the target correction vector based on the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed, for an initial correction vector including multiple sets of the measured parameters, further includes: when the first rotational speed is less than the minimum second rotational speed, using the initial correction vector corresponding to the minimum second rotational speed as the target correction vector of the first rotational speed line.

7. The method of claim 1, wherein, The step of obtaining the target correction vector based on the relationship between the first rotational speed and the minimum second rotational speed and / or the maximum second rotational speed, for an initial correction vector including multiple sets of the measured parameters, further includes: when the first rotational speed is greater than the maximum second rotational speed, using the initial correction vector corresponding to the maximum second rotational speed as the target correction vector of the first rotational speed line.

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