Hydrogen blending ratio self-selection method for gas turbine and gas turbine

Abstract

The application discloses a hydrogen mixing ratio self-selection method of a gas turbine and the gas turbine, wherein the hydrogen mixing ratio self-selection method of the gas turbine comprises the following steps: obtaining a plurality of user-inputted to-be-set hydrogen mixing ratios; setting hydrogen flow and natural gas flow according to each to-be-set hydrogen mixing ratio; measuring fuel heat output, output power, output power, NO x X, CO2 emission, pressure distribution data and temperature distribution data of the gas turbine within a preset combustion time; calculating a hydrogen mixing adaptability evaluation score of the gas turbine under the hydrogen mixing ratio condition; counting the hydrogen mixing adaptability evaluation scores of the gas turbine under all hydrogen mixing ratio conditions, determining a hydrogen mixing ratio corresponding to a maximum hydrogen mixing adaptability evaluation score, and taking the hydrogen mixing ratio as a target hydrogen mixing ratio; and setting hydrogen flow and natural gas flow of the gas turbine according to the target hydrogen mixing ratio. The application guarantees operation efficiency and stability of the hydrogen-mixed gas turbine.

Description

Technical Field

[0001] This invention relates to the field of natural gas combustion technology, and in particular to a method for automatically selecting the hydrogen blending ratio of a gas turbine and a gas turbine. Background Technology

[0002] Under the dual-carbon goals, utilizing new energy sources such as photovoltaics and wind power to produce green hydrogen has become an important option. However, the applicability of related storage, transportation, and terminal equipment is a major issue in hydrogen energy utilization. For large gas turbines, appropriately increasing the hydrogen blending ratio not only reduces the project's energy costs but also reduces emissions, thereby creating new value for the project.

[0003] The hydrogen blending ratio in gas turbines can vary depending on specific applications and technical requirements. However, generally, commercially available gas turbine hydrogen blending systems typically blend hydrogen with natural gas or other fuels to achieve mixed combustion. In existing gas turbine systems, the common hydrogen blending ratio is usually within a certain range (e.g., 5% to 30%). This means that the hydrogen content in the fuel mixture within the gas turbine combustor can vary within this range. However, the specific hydrogen blending ratio will vary depending on factors such as the gas turbine design, combustor technology, and the capabilities of the fuel supply system. Existing technologies tend to overlook the comprehensive consideration of actual operating conditions, including gas turbine design, combustor operation, and fuel supply system operation, when setting the hydrogen blending ratio. This makes it difficult to accurately measure key gas turbine indicators and systematically evaluate the hydrogen blending adaptability of gas turbines. Therefore, it is impossible to determine the optimal hydrogen blending ratio based on actual operating conditions when designing the blending ratio. Therefore, proposing evaluation methods and establishing a reasonable evaluation equipment system for the hydrogen blending adaptability of gas turbines is of great significance for ensuring the operational efficiency and stability of hydrogen-blended gas turbines. Summary of the Invention

[0004] This invention provides a method for automatically selecting the hydrogen blending ratio of a gas turbine and a gas turbine in general, to solve the technical problem that the existing technology cannot determine the hydrogen blending ratio that achieves the best combustion effect based on actual operating conditions when designing the hydrogen blending ratio.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a method for automatically selecting the hydrogen blending ratio in a gas turbine, comprising:

[0006] Obtain several hydrogen doping ratios to be set by the user;

[0007] For each hydrogen blending ratio to be set, the hydrogen flow rate and natural gas flow rate are set according to the hydrogen blending ratio to ensure that the hydrogen and natural gas are mixed according to the hydrogen blending ratio and continuously burned within a preset combustion time; the fuel calorific value, output power, output power, and NO of the gas turbine are measured within the combustion time.x Emissions, CO2 emissions, pressure distribution data, and temperature distribution data; based on the fuel calorific value, output power, output power, and NO... x Emissions, CO2 emissions, pressure distribution data, and temperature distribution data are used to calculate the hydrogen blending adaptability evaluation score of the gas turbine under the specified hydrogen blending ratio.

[0008] The hydrogen blending adaptability evaluation scores of the gas turbine under all hydrogen blending ratio conditions are statistically analyzed. The hydrogen blending ratio corresponding to the highest hydrogen blending adaptability evaluation score is determined, and the hydrogen blending ratio is taken as the target hydrogen blending ratio.

[0009] Based on the target hydrogen blending ratio, the final hydrogen flow rate and natural gas flow rate of the gas turbine are set.

[0010] As a preferred embodiment, after obtaining several hydrogen doping ratios to be set by the user, the following steps are also included:

[0011] The hydrogen flow rate is set to 0 so that the unblended natural gas continues to burn for a preset combustion time; the emissions of the gas turbine during the combustion time are measured as the raw emissions.

[0012] The emissions from the gas turbine during the combustion duration are measured as raw emissions.

[0013] Obtain the original emissions and the original emissions.

[0014] As a preferred embodiment, the method based on the fuel calorific value, output power, output power, and NO... x Based on emission data, CO2 emission data, pressure distribution data, and temperature distribution data, calculate the hydrogen blending adaptability evaluation score of the gas turbine under the stated hydrogen blending ratio conditions, including:

[0015] The power generation efficiency of the gas turbine is calculated based on the fuel calorific value, the output power, and the preset sensible heat of the fuel.

[0016] According to the NO x Emissions and the NO x The original emissions were used to calculate the NO from the gas turbine. x Reduce emissions;

[0017] Calculate the CO2 emission reduction rate of the gas turbine based on the CO2 emission amount and the original CO2 emission amount;

[0018] Based on the pressure distribution data, calculate the average pressure and the standard deviation of the pressure distribution data, and count the number of data points and the pressure value of each data point; based on the average pressure, the standard deviation of the pressure distribution data, the number of data points and the pressure value of each data point, calculate the pressure variation coefficient.

[0019] Based on the temperature distribution data, calculate the average temperature and the standard deviation of the temperature distribution data, and count the number of data points and the temperature value of each data point; based on the average temperature, the standard deviation of the temperature distribution data, the number of data points and the temperature value of each data point, calculate the temperature variation coefficient.

[0020] Based on the power generation efficiency, output power, and NO of the gas turbine... x The hydrogen blending adaptability evaluation score of the gas turbine under the stated hydrogen blending ratio is calculated using the reduction rate of emissions, CO2 reduction rate, pressure coefficient of variation, and temperature coefficient of variation.

[0021] As a preferred option, the formula for calculating power generation efficiency is:

[0022]

[0023] As the preferred option, NO x The formula for calculating the emission reduction rate is:

[0024]

[0025] As the preferred option, the formula for calculating the CO2 emission reduction rate is:

[0026]

[0027] As a preferred option, the formula for calculating the pressure variation coefficient is:

[0028]

[0029]

[0030] In the formula, CV p σ is the pressure variation coefficient; p The standard deviation of the pressure distribution data; μ p Mean pressure; N p p represents the number of data points in the pressure distribution data. i The stress value for each data point.

[0031] As a preferred option, the formula for calculating the coefficient of temperature variation is:

[0032]

[0033]

[0034] In the formula, CV t σ is the temperature variation coefficient; t The standard deviation of the temperature distribution data; μ t Average temperature; N t t represents the number of data points in the temperature distribution data. i Temperature value for each data point.

[0035] As a preferred option, the formula for calculating the hydrogen doping adaptability evaluation score is:

[0036] A = A1 + A2 + A3 + A4;

[0037] A1=η×B η ;

[0038] A2 = P × B P ;

[0039] A3 = 0.5 × (Q) n +Q c )×B Q ;

[0040] A4 = 0.5 × [(1-CV)] p )+(1-CV t )]×B CV ;

[0041] In the formula, A is the hydrogen doping adaptability evaluation score; A1 is the efficiency evaluation score; A2 is the power evaluation score; A3 is the emission evaluation score; A4 is the stability evaluation score; η is the power generation efficiency; P is the output power; Q n NO x Reduce emissions rate; Q c To reduce CO2 emissions; B η The preset efficiency weight score; B P The preset power weighting score; B Q The preset emission weighting score; B CV This is the preset stability weight score.

[0042] Based on the above embodiments, another embodiment of the present invention provides a gas turbine, including: a natural gas subsystem, a hydrogen subsystem, a mixing subsystem, a measurement subsystem, and a control subsystem; wherein, the measurement subsystem includes an efficiency measurement module, a power measurement module, an emission measurement module, a temperature measurement module, and a pressure measurement module;

[0043] The control subsystem is used to acquire several hydrogen blending ratios to be set by the user; for each hydrogen blending ratio to be set, the hydrogen flow rate of the hydrogen subsystem and the natural gas flow rate of the natural gas subsystem are set according to the hydrogen blending ratio.

[0044] The natural gas subsystem is used to discharge natural gas into the mixing subsystem according to the set natural gas flow rate;

[0045] The hydrogen subsystem is used to discharge hydrogen to the mixing subsystem according to the set hydrogen flow rate;

[0046] The mixing subsystem is used to mix hydrogen and natural gas and continue to burn them for a preset combustion time.

[0047] The measurement subsystem is used to measure the fuel calorific value of the gas turbine during the combustion time using the efficiency measurement module, the output electricity and output power of the gas turbine during the combustion time using the power measurement module, and the NO emission measurement value of the gas turbine during the combustion time using the emission measurement module, for each hydrogen blending ratio to be set. x Emissions and CO2 emissions are measured by temperature distribution data of the gas turbine during the combustion time using a temperature measurement module, and pressure distribution data of the gas turbine during the combustion time using a pressure measurement module. The fuel calorific value, output power, output power, and NO2 emissions are then compared. x Emissions, CO2 emissions, pressure distribution data, and temperature distribution data are sent to the control subsystem;

[0048] The control subsystem is also used to, for each hydrogen blending ratio to be set, determine the fuel calorific value, output power, output power, and NO content. x Based on emission data, CO2 emission data, pressure distribution data, and temperature distribution data, calculate the hydrogen blending adaptability evaluation score of the gas turbine under the specified hydrogen blending ratio conditions; statistically analyze the hydrogen blending adaptability evaluation scores of the gas turbine under all hydrogen blending ratio conditions, determine the hydrogen blending ratio corresponding to the highest hydrogen blending adaptability evaluation score, and use the hydrogen blending ratio as the target hydrogen blending ratio; based on the target hydrogen blending ratio, set the final hydrogen flow rate and natural gas flow rate of the gas turbine.

[0049] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0050] This invention measures the fuel calorific value, output power, output power, NOx emissions, CO2 emissions, pressure distribution data, and temperature distribution data of a gas turbine within a preset combustion time at different hydrogen blending ratios. Based on the measured data, the power generation efficiency, NOx emission reduction rate, CO2 emission reduction rate, pressure variation coefficient, and temperature variation data of the gas turbine are calculated. By integrating the measured output power and the calculated data, the hydrogen blending adaptability evaluation score of the gas turbine at different blending ratios is further calculated according to the formula. This enables a systematic evaluation of the hydrogen blending adaptability of the gas turbine and determines the target hydrogen blending ratio based on the evaluation results. This allows the gas turbine to set the flow rates of natural gas and hydrogen according to the target hydrogen blending ratio, ensuring the operating efficiency and stability of the hydrogen-blended gas turbine. Attached Figure Description

[0051] Figure 1 This is a schematic flowchart of a method for automatically selecting the hydrogen blending ratio of a gas turbine according to an embodiment of the present invention;

[0052] Figure 2 This is a schematic diagram of the structure of a gas turbine provided in an embodiment of the present invention. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Example 1

[0057] Please refer to Figure 1 The above is a flowchart illustrating a method for automatically selecting the hydrogen blending ratio in a gas turbine according to an embodiment of the present invention, comprising:

[0058] S1. Obtain several hydrogen doping ratios to be set by the user.

[0059] It should be noted that the hydrogen blending ratio in existing gas turbines is typically between 5% and 30%, meaning that the hydrogen content in the combustion mixture can vary within this range. The hydrogen blending ratio will differ depending on the gas turbine design, combustion chamber technology, and the capabilities of the combustion supply system. How to design a hydrogen blending ratio that yields the best combustion performance is the technical problem this invention aims to solve.

[0060] In this embodiment, the user can input several reasonable hydrogen blending ratios as the hydrogen blending ratio to be set for the gas turbine.

[0061] In a preferred embodiment, after obtaining several hydrogen doping ratios input by the user to be set, the method further includes:

[0062] The hydrogen flow rate is set to 0 to allow unblended natural gas to burn continuously for a preset combustion duration; the NO content of the gas turbine is measured during this combustion duration. x Emissions, as NO x Original emissions;

[0063] The CO2 emissions from the gas turbine during the combustion duration are measured and used as the raw CO2 emissions.

[0064] Obtain the NO x The original emissions and the original CO2 emissions.

[0065] In this embodiment, after obtaining several hydrogen blending ratios input by the user, it is also necessary to measure the NO produced by natural gas combustion for a specified time under non-hydrogen-blended conditions. x Raw emissions and raw CO2 emissions are used to calculate NO in subsequent steps. x The reduction rate of emissions and the reduction rate of CO2 emissions provide a point of comparison. NO x This refers to the total amount of nitrogen oxides produced during combustion. The combustion time is a preset duration, typically set to 2 hours.

[0066] It should be noted that this invention uses existing methods for measuring NO. x Technologies related to emissions and CO2 emissions.

[0067] S2. For each hydrogen blending ratio to be set, set the hydrogen flow rate and natural gas flow rate according to the hydrogen blending ratio, so that the hydrogen and natural gas are mixed according to the hydrogen blending ratio and continuously burned within a preset combustion time; measure the fuel calorific value, output power, output power, and NO of the gas turbine within the combustion time. x Emissions, CO2 emissions, pressure distribution data, and temperature distribution data; based on the fuel calorific value, output power, output power, and NO... x Emissions, CO2 emissions, pressure distribution data, and temperature distribution data are used to calculate the hydrogen blending adaptability evaluation score of the gas turbine under the stated hydrogen blending ratio conditions.

[0068] In this embodiment, for each hydrogen blending ratio to be set, the hydrogen flow rate and natural gas flow rate are set according to the hydrogen blending ratio. For example, if the hydrogen blending ratio is 10% and the total flow rate is X, then the hydrogen flow rate is set to 0.1X and the natural gas flow rate is set to 0.9X. The hydrogen and natural gas are mixed according to the set hydrogen blending ratio and continuously burned for a preset combustion time. The fuel calorific value, output power, output power, and NO2 of the gas turbine are measured during the combustion time. x Emissions, CO2 emissions, pressure distribution data, and temperature distribution data; based on the fuel calorific value, output power, output power, and NO... x The data includes emissions, CO2 emissions, pressure distribution data, and temperature distribution data. Then, based on the measured data, the hydrogen blending adaptability evaluation score of the gas turbine under the stated hydrogen blending ratio conditions is calculated.

[0069] It should be noted that this invention uses existing technologies for measuring fuel calorific value, output power, output power, gas turbine pressure, and gas turbine temperature.

[0070] In a preferred embodiment, the step is based on the fuel calorific value, output power, output power, and NO. x Based on emission data, CO2 emission data, pressure distribution data, and temperature distribution data, calculate the hydrogen blending adaptability evaluation score of the gas turbine under the stated hydrogen blending ratio conditions, including:

[0071] The power generation efficiency of the gas turbine is calculated based on the fuel calorific value, the output power, and the preset sensible heat of the fuel.

[0072] According to the NO x Emissions and the NO x The original emissions were used to calculate the NO from the gas turbine. x Reduce emissions;

[0073] Calculate the CO2 emission reduction rate of the gas turbine based on the CO2 emission amount and the original CO2 emission amount;

[0074] Based on the pressure distribution data, calculate the average pressure and the standard deviation of the pressure distribution data, and count the number of data points and the pressure value of each data point; based on the average pressure, the standard deviation of the pressure distribution data, the number of data points and the pressure value of each data point, calculate the pressure variation coefficient.

[0075] Based on the temperature distribution data, calculate the average temperature and the standard deviation of the temperature distribution data, and count the number of data points and the temperature value of each data point; based on the average temperature, the standard deviation of the temperature distribution data, the number of data points and the temperature value of each data point, calculate the temperature variation coefficient.

[0076] Based on the power generation efficiency, output power, and NO of the gas turbine... x The hydrogen blending adaptability evaluation score of the gas turbine under the stated hydrogen blending ratio is calculated using the reduction rate of emissions, CO2 reduction rate, pressure coefficient of variation, and temperature coefficient of variation.

[0077] In a preferred embodiment, the formula for calculating power generation efficiency is:

[0078]

[0079] In a preferred embodiment, NO x The formula for calculating the emission reduction rate is:

[0080]

[0081] In a preferred embodiment, the formula for calculating the CO2 emission reduction rate is as follows:

[0082]

[0083] In a preferred embodiment, the formula for calculating the pressure variation coefficient is:

[0084]

[0085]

[0086] In the formula, CV p σ is the pressure variation coefficient; p The standard deviation of the pressure distribution data; μ p Mean pressure; N p p represents the number of data points in the pressure distribution data. i The stress value for each data point.

[0087] In a preferred embodiment, the formula for calculating the temperature variation coefficient is:

[0088]

[0089]

[0090] In the formula, CV t σ is the temperature variation coefficient; t The standard deviation of the temperature distribution data; μ t Average temperature; N t t represents the number of data points in the temperature distribution data. i Temperature value for each data point.

[0091] In a preferred embodiment, the formula for calculating the hydrogen doping adaptability evaluation score is:

[0092] A = A1 + A2 + A3 + A4;

[0093] A1=η×B η ;

[0094] A2 = P × B P ;

[0095] A3 = 0.5 × (Q) n +Q c )×B Q ;

[0096] A4 = 0.5 × [(1-CV)] p )+(1-CV t )]×B CV ;

[0097] In the formula, A is the hydrogen doping adaptability evaluation score; A1 is the efficiency evaluation score; A2 is the power evaluation score; A3 is the emission evaluation score; A4 is the stability evaluation score; η is the power generation efficiency; P is the output power; Q n NO x Reduce emissions rate; Q c To reduce CO2 emissions; B η The preset efficiency weight score; B P The preset power weighting score; B Q The preset emission weighting score; B CV This is the preset stability weight score.

[0098] In this embodiment, when calculating the hydrogen doping adaptability evaluation score, the evaluation effect of hydrogen doping adaptability can be adjusted by reasonably allocating weight scores. For example, the efficiency weight score B can be adjusted. η Set to 10%; adjust power weighting fraction B P Set to 40%; adjust emission weighting fraction B QSet to 20%; adjust stability weighting score B. CV Setting the weighting to 30% ensures that the final evaluation score prioritizes the gas turbine's power generation, followed by its stability. After calculating the hydrogen blending adaptability evaluation score, the combustion effect under different hydrogen blending ratios can be evaluated based on this score. For example, a hydrogen blending ratio with an evaluation score between 85 and 100 is rated as "good"; a score between 75 and 85 is rated as "relatively good"; a score between 60 and 75 is rated as "average"; and a score between 0 and 60 is rated as "poor".

[0099] S3. Calculate the hydrogen blending adaptability evaluation score of the gas turbine under all hydrogen blending ratio conditions, determine the hydrogen blending ratio corresponding to the highest hydrogen blending adaptability evaluation score, and take the hydrogen blending ratio as the target hydrogen blending ratio; set the final hydrogen flow rate and natural gas flow rate of the gas turbine according to the target hydrogen blending ratio.

[0100] In this embodiment, the target hydrogen blending ratio is determined based on the evaluation results so that the gas turbine can be set to the flow rates of natural gas and hydrogen according to the target hydrogen blending ratio. This setting of the gas turbine has the best adaptability to the hydrogen blending ratio, ensuring the operating efficiency and stability of the hydrogen-blended gas turbine.

[0101] Please refer to Figure 2 The diagram below illustrates the structure of a gas turbine according to an embodiment of the present invention, comprising: a natural gas subsystem, a hydrogen subsystem, a mixing subsystem, a measurement subsystem, and a control subsystem; wherein the measurement subsystem includes an efficiency measurement module, a power measurement module, an emission measurement module, a temperature measurement module, and a pressure measurement module.

[0102] The control subsystem is used to acquire several hydrogen blending ratios to be set by the user; for each hydrogen blending ratio to be set, the hydrogen flow rate of the hydrogen subsystem and the natural gas flow rate of the natural gas subsystem are set according to the hydrogen blending ratio.

[0103] The natural gas subsystem is used to discharge natural gas into the mixing subsystem according to the set natural gas flow rate;

[0104] The hydrogen subsystem is used to discharge hydrogen to the mixing subsystem according to the set hydrogen flow rate;

[0105] The mixing subsystem is used to mix hydrogen and natural gas and continue to burn them for a preset combustion time.

[0106] The measurement subsystem is used to measure the fuel calorific value of the gas turbine during the combustion time using the efficiency measurement module, the output electricity and output power of the gas turbine during the combustion time using the power measurement module, and the NO emission measurement value of the gas turbine during the combustion time using the emission measurement module, for each hydrogen blending ratio to be set. x Emissions and CO2 emissions are measured by temperature distribution data of the gas turbine during the combustion time using a temperature measurement module, and pressure distribution data of the gas turbine during the combustion time using a pressure measurement module. The fuel calorific value, output power, output power, and NO2 emissions are then compared. x Emissions, CO2 emissions, pressure distribution data, and temperature distribution data are sent to the control subsystem;

[0107] The control subsystem is also used to, for each hydrogen blending ratio to be set, determine the fuel calorific value, output power, output power, and NO content. x Based on emission data, CO2 emission data, pressure distribution data, and temperature distribution data, calculate the hydrogen blending adaptability evaluation score of the gas turbine under the specified hydrogen blending ratio conditions; statistically analyze the hydrogen blending adaptability evaluation scores of the gas turbine under all hydrogen blending ratio conditions, determine the hydrogen blending ratio corresponding to the highest hydrogen blending adaptability evaluation score, and use the hydrogen blending ratio as the target hydrogen blending ratio; based on the target hydrogen blending ratio, set the final hydrogen flow rate and natural gas flow rate of the gas turbine.

[0108] It should be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, in the accompanying drawings of the device embodiments provided by this invention, the connection relationships between modules indicate that they have communication connections, which can be specifically implemented as one or more communication buses or signal lines. Those skilled in the art can understand and implement this without any creative effort.

Claims

1. A method for automatically selecting the hydrogen blending ratio in a gas turbine, characterized in that, include: The system acquires several user-input hydrogen blending ratios to be set; after acquiring these ratios, it sets the hydrogen flow rate to 0 to ensure continuous combustion of unblended natural gas within a preset combustion duration; and measures the gas turbine flow rate within the specified combustion duration. Emissions, as Raw emissions; measurements of gas turbine emissions during the combustion duration. Emissions, as Original emissions; obtaining the Original emissions and the Original emissions; For each hydrogen blending ratio to be set, the hydrogen flow rate and natural gas flow rate are set according to the hydrogen blending ratio to ensure that the hydrogen and natural gas are mixed according to the hydrogen blending ratio and continuously burned within a preset combustion time; the fuel calorific value, output electricity, and output power of the gas turbine are measured within the combustion time. Emissions Emissions, pressure distribution data, and temperature distribution data; based on the fuel calorific value, output power, and preset fuel sensible heat, calculate the power generation efficiency of the gas turbine; based on the... Emissions and the Original emissions, calculate the gas turbine's Reduce emission rates; according to the above Emissions and the Original emissions, calculate the gas turbine's Reduce emission rates; calculate the average pressure and the standard deviation of the pressure distribution data based on the pressure distribution data, and count the number of data points and the pressure value of each data point; calculate the pressure variation coefficient based on the average pressure, the standard deviation of the pressure distribution data, the number of data points and the pressure value of each data point; Based on the temperature distribution data, calculate the average temperature and the standard deviation of the temperature distribution data, and count the number of data points and the temperature value of each data point. The temperature variation coefficient is calculated based on the average temperature, the standard deviation of the temperature distribution data, the number of data points in the temperature distribution data, and the temperature value of each data point; the power generation efficiency and output power of the gas turbine are also considered. Reduce emissions rate Reduce emission rates, pressure coefficient of variation, and temperature coefficient of variation to calculate the hydrogen blending adaptability evaluation score of the gas turbine under the stated hydrogen blending ratio; The hydrogen blending adaptability evaluation scores of the gas turbine under all hydrogen blending ratio conditions are statistically analyzed. The hydrogen blending ratio corresponding to the highest hydrogen blending adaptability evaluation score is determined, and the hydrogen blending ratio is taken as the target hydrogen blending ratio. Based on the target hydrogen blending ratio, the final hydrogen flow rate and natural gas flow rate of the gas turbine are set.

2. The method for automatically selecting the hydrogen blending ratio of a gas turbine as described in claim 1, characterized in that, The formula for calculating power generation efficiency is: 。 3. The method for automatically selecting the hydrogen blending ratio of a gas turbine as described in claim 1, characterized in that, The formula for calculating the emission reduction rate is: 。 4. The method for automatically selecting the hydrogen blending ratio of a gas turbine as described in claim 1, characterized in that, The formula for calculating the emission reduction rate is: 。 5. The method for automatically selecting the hydrogen blending ratio of a gas turbine as described in claim 1, characterized in that, The formula for calculating the pressure coefficient of variation is: ； ； In the formula, The pressure variation coefficient; The standard deviation of the pressure distribution data; Average pressure; The number of data points in the pressure distribution data; The stress value for each data point.

6. The method for automatically selecting the hydrogen blending ratio of a gas turbine as described in claim 1, characterized in that, The formula for calculating the coefficient of variation of temperature is: ； ； In the formula, The coefficient of variation is the temperature variation. The standard deviation of the temperature distribution data; Average temperature; The number of data points for the temperature distribution data; Temperature value for each data point.

7. The method for automatically selecting the hydrogen blending ratio of a gas turbine as described in claim 1, characterized in that, The formula for calculating the hydrogen doping adaptability evaluation score is: ； ； ； ； ； In the formula, The score is the evaluation score for hydrogen doping adaptability; Efficiency score; The power evaluation score; Emissions assessment score; The score is used to evaluate stability. For power generation efficiency; This refers to the output power. for Reduce emissions; for Reduce emissions; The preset efficiency weight score; The preset power weighting score; The preset emission weighting score; This is the preset stability weight score.

8. A gas turbine, characterized in that, It includes a natural gas subsystem, a hydrogen subsystem, a mixing subsystem, a measurement subsystem, and a control subsystem; wherein, the measurement subsystem includes an efficiency measurement module, a power measurement module, an emission measurement module, a temperature measurement module, and a pressure measurement module; The control subsystem is used to acquire several hydrogen blending ratios to be set by the user; after acquiring these ratios, it sets the hydrogen flow rate to 0 to ensure that the unblended natural gas continues to burn for a preset combustion time; and it measures the gas turbine flow rate within the combustion time. Emissions, as Raw emissions; measurements of gas turbine emissions during the combustion duration. Emissions, as Original emissions; obtaining the Original emissions and the Original emissions; for each hydrogen blending ratio to be set, set the hydrogen flow rate of the hydrogen subsystem and the natural gas flow rate of the natural gas subsystem according to the hydrogen blending ratio; The natural gas subsystem is used to discharge natural gas into the mixing subsystem according to the set natural gas flow rate; The hydrogen subsystem is used to discharge hydrogen to the mixing subsystem according to the set hydrogen flow rate; The mixing subsystem is used to mix hydrogen and natural gas and continue to burn them for a preset combustion time. The measurement subsystem is used to measure the fuel calorific value of the gas turbine during the combustion time using the efficiency measurement module, the output electricity and output power of the gas turbine during the combustion time using the power measurement module, and the emission measurement value of the gas turbine during the combustion time for each hydrogen blending ratio to be set. Emissions and Emissions are measured by the temperature distribution data of the gas turbine during the combustion time using a temperature measurement module, and the pressure distribution data of the gas turbine during the combustion time using a pressure measurement module. The fuel calorific value, output electricity, and output power are then considered together. Emissions Emission data, pressure distribution data, and temperature distribution data are sent to the control subsystem. The control subsystem is also used to calculate the power generation efficiency of the gas turbine for each hydrogen blending ratio to be set, based on the fuel calorific value, output power, and preset fuel sensible heat; based on the... Emissions and the Original emissions, calculate the gas turbine's Reduce emission rates; according to the above Emissions and the Original emissions, calculate the gas turbine's Reduce emission rates; calculate the average pressure and standard deviation of the pressure distribution data based on the pressure distribution data, and count the number of data points and pressure value of each data point; calculate the pressure variation coefficient based on the average pressure, standard deviation of the pressure distribution data, number of data points and pressure value of each data point; calculate the average temperature and standard deviation of the temperature distribution data based on the temperature distribution data, and count the number of data points and temperature value of each data point; calculate the temperature variation coefficient based on the average temperature, standard deviation of the temperature distribution data, number of data points and temperature value of each data point; calculate the power generation efficiency and output power of the gas turbine; Reduce emissions rate Reduce emission rates, pressure variation coefficients, and temperature variation coefficients to calculate the hydrogen blending adaptability evaluation score of the gas turbine under the specified hydrogen blending ratio conditions; statistically analyze the hydrogen blending adaptability evaluation scores of the gas turbine under all hydrogen blending ratio conditions, determine the hydrogen blending ratio corresponding to the highest hydrogen blending adaptability evaluation score, and use the hydrogen blending ratio as the target hydrogen blending ratio; based on the target hydrogen blending ratio, set the final hydrogen flow rate and natural gas flow rate of the gas turbine.

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