Gas turbine control method and system

Abstract

The invention discloses a gas turbine control method and system, and relates to the technical field of control. The problem that an existing gas turbine is low in control efficiency is mainly solved. The method mainly comprises the steps that the data communication state of at least one equipment connection interface is obtained through main control equipment, and the equipment connection interface is used for conducting data communication with auxiliary sub-equipment of the gas turbine; if auxiliary function parameters of the gas turbine are determined based on the data communication state, a control object and control parameters of expected operation of the gas turbine are determined through the main control equipment; and calculating a control error range of the control object through a mechanism model which is established in the main control equipment and is matched with the auxiliary function parameters, and when the control error range is matched with a preset error threshold range, performing control operation on the control object based on the control parameters. The method is mainly used for controlling gas turbines.

Description

Technical Field

[0001] The present invention relates to the field of control technology, and in particular to a gas turbine control method and system. Background Art

[0002] Gas turbine is an internal combustion power machine that uses continuous flowing gas as the working fluid to drive the impeller to rotate at high speed, converting the energy of the fuel into useful work. It is a rotary impeller heat engine. It is mainly composed of three major components: compressor, combustion chamber and turbine, and is equipped with intake, exhaust, transmission and other auxiliary control systems to realize the engine function.

[0003] At present, the existing control method of gas turbines usually embeds an adaptive control algorithm in the main control device, and uses the collected parameters such as intake, exhaust, and turbine speed as the monitoring parameters of the gas turbine. After calculation by the adaptive control algorithm, the control parameters of the optimal power state are readjusted. However, relying solely on the adaptive control algorithm to control the gas turbine without the influence of other auxiliary system control functions will result in unsatisfactory control effects, thereby reducing the control efficiency of the gas turbine. Summary of the invention

[0004] In view of this, the present invention provides a gas turbine control method and system, the main purpose of which is to solve the problem of low control efficiency of existing gas turbines.

[0005] According to one aspect of the present invention, a gas turbine control method is provided, comprising:

[0006] Acquiring, by means of a main control device, a data communication state of at least one device connection interface, wherein the device connection interface is used for data communication with an auxiliary sub-device of the gas turbine;

[0007] After the auxiliary function parameters with respect to the gas turbine are determined based on the data communication state, the control object and control parameters of the expected operation of the gas turbine are determined by the main control device;

[0008] The control error range of the control object is calculated by using a mechanism model that has been built in the main control device and matches the auxiliary function parameters, and when the control error range matches a preset error threshold range, the control object is controlled based on the control parameters.

[0009] Furthermore, before determining the control object and control parameters of the expected operation of the gas turbine by the main control device, the method further includes:

[0010] Parsing the communication protocol classification of the data communication state by the main control device, and querying the auxiliary sub-device connected to the gas turbine based on the communication protocol classification, wherein the auxiliary sub-device is used for data connection or energy connection with the gas turbine;

[0011] The main control device sends a parameter acquisition request to the auxiliary sub-device, and receives auxiliary function parameters fed back by the auxiliary sub-device, wherein the auxiliary function parameters are used to characterize the parameters of the auxiliary sub-device assisting the gas turbine in operating.

[0012] Furthermore, the determining of the control object and control parameter of the expected operation of the gas turbine by the main control device includes:

[0013] Displaying all reference control objects of the gas turbine through the control interface in the main control device;

[0014] After the control object is selected from the reference control objects through the control interface, a control parameter matching the control object is searched based on a preset control object parameter mapping relationship; or,

[0015] The control demand information of the gas turbine matching the auxiliary function parameters is determined by the main control device, and the control object and control parameters matching the control demand information are determined according to the demand control mapping relationship.

[0016] Furthermore, the calculation of the control error range of the control object by using the mechanism model built in the main control device and matching the auxiliary function parameters includes:

[0017] Obtaining the equipment mechanics relationship and equipment energy conversion relationship of the auxiliary sub-equipment through the main control device, and building a mechanism model between the gas turbine and each of the auxiliary sub-equipment in combination with the auxiliary function parameters, the equipment mechanics relationship, or the equipment capacity conversion relationship;

[0018] The control error range of the control object is calculated in the main control device based on the mechanism model.

[0019] Furthermore, the method further comprises:

[0020] When the main control device determines that the control error range exceeds a preset error threshold range, the control parameter is adjusted based on the auxiliary function parameter, so as to perform a control operation on the control object based on the adjusted control parameter.

[0021] According to another aspect of the present invention, a gas turbine control system is provided, comprising:

[0022] A main control device, and a plurality of auxiliary sub-devices, wherein data communication is performed between the main control device and the plurality of auxiliary sub-devices;

[0023] The main control device is used to obtain the data communication status of at least one device connection interface, and the device connection interface is used to perform data communication with the auxiliary sub-device of the gas turbine;

[0024] After the auxiliary function parameters with respect to the gas turbine are determined based on the data communication state, the control object and control parameters of the expected operation of the gas turbine are determined by the main control device;

[0025] Calculating the control error range of the control object through a mechanism model built in the main control device and matching the auxiliary function parameter, and performing a control operation on the control object based on the control parameter when the control error range matches a preset error threshold range;

[0026] The auxiliary sub-device is used to send auxiliary function parameters to the main control device and operate according to the control instructions of the main control device.

[0027] Furthermore, the main control device is specifically used to parse the communication protocol classification of the data communication state through the main control device, and query the auxiliary sub-device connected to the gas turbine based on the communication protocol classification, wherein the auxiliary sub-device is used to establish data connection or energy connection with the gas turbine;

[0028] The main control device sends a parameter acquisition request to the auxiliary sub-device, and receives auxiliary function parameters fed back by the auxiliary sub-device, wherein the auxiliary function parameters are used to characterize the parameters of the auxiliary sub-device assisting the gas turbine in operating.

[0029] Furthermore, the main control device is specifically used to display all reference control objects of the gas turbine through a control interface in the main control device;

[0030] After the control object is selected from the reference control objects through the control interface, a control parameter matching the control object is searched based on a preset control object parameter mapping relationship; or,

[0031] The control demand information of the gas turbine matching the auxiliary function parameters is determined by the main control device, and the control object and control parameters matching the control demand information are determined according to the demand control mapping relationship.

[0032] Furthermore, the main control device is specifically used to obtain the equipment mechanics relationship and equipment energy conversion relationship of the auxiliary sub-equipment through the main control device, and build a mechanism model between the gas turbine and each of the auxiliary sub-equipment in combination with the auxiliary function parameters, the equipment mechanics relationship, or the equipment capacity conversion relationship;

[0033] The control error range of the control object is calculated in the main control device based on the mechanism model.

[0034] Furthermore, the main control device is specifically used to adjust the control parameter based on the auxiliary function parameter when the main control device determines that the control error range exceeds a preset error threshold range, so as to control the control object based on the adjusted control parameter.

[0035] By means of the above technical solution, the technical solution provided by the embodiment of the present invention has at least the following advantages:

[0036] The present invention provides a gas turbine control method and system. Compared with the prior art, the embodiment of the present invention obtains the data communication state of at least one device connection interface, and the device connection interface is used to perform data communication with the auxiliary sub-device of the gas turbine; after the auxiliary function parameters of the gas turbine are determined based on the data communication state, the control object and control parameters of the expected operation of the gas turbine are determined by the main control device; the control error range of the control object is calculated by the mechanism model matching the auxiliary function parameters built in the main control device, and when the control error range matches the preset error threshold range, the control object is controlled based on the control parameters, so as to strengthen the association between the gas turbine and the auxiliary sub-device, improve the adaptability of the control parameters and the auxiliary function parameters, and greatly enhance the accuracy of the control parameters. At the same time, by checking the control error range, the accuracy of the control parameter configuration can be further improved, and the debugging time of the control parameters can be reduced, thereby effectively improving the control efficiency of the gas turbine.

[0037] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0039] Figure 1 A flow chart of a gas turbine control method provided by an embodiment of the present invention is shown;

[0040] Figure 2 A flow chart of another gas turbine control method provided by an embodiment of the present invention is shown;

[0041] Figure 3 A block diagram of the composition of a gas turbine control system provided by an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0042] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0043] The embodiment of the present invention provides a gas turbine control method, such as Figure 1 As shown, the method includes:

[0044] 101. Obtain, through a main control device, a data communication status of at least one device connection interface.

[0045] In the embodiment of the present invention, the device connection interface is used to communicate data with the auxiliary sub-device of the gas turbine. The data communication state is used to characterize the state of data communication between the auxiliary sub-device corresponding to the device connection interface and the main control device, for example, the communication connection state and the communication disconnection state. The main control device is a control device of the gas turbine, which is used to communicate data with any auxiliary sub-device through the device connection interface, and issue control instructions to various components of the gas turbine to control the operation of the gas turbine. Among them, the basic architecture of the main control device can be built based on the existing mainstream industrial processor chip, for example, ARM, DSP, FPGA, etc., which is not specifically limited in the embodiment of the present invention. The gas turbine can be a light gas turbine or a heavy gas turbine. The auxiliary sub-device is a device used in conjunction with the gas turbine to complete a certain function in the corresponding scenario, and its corresponding gas turbine application scenario is different. For example, when the gas turbine is applied to the power peak load scenario, the auxiliary sub-device includes a generator, an auxiliary transformer, a main transformer, etc.; when the gas turbine is applied to the combustion engine auxiliary cycle scenario, the auxiliary sub-device includes a boiler preheating device, a blower, etc., which is not specifically limited in the embodiment of the present invention.

[0046] 102. After the auxiliary function parameters of the gas turbine are determined based on the data communication status, the control object and control parameters of the expected operation of the gas turbine are determined by the main control device.

[0047] In the embodiment of the present invention, there may be multiple auxiliary sub-devices connected to the gas turbine, and when the gas turbine is required to provide different functional support, the data communication of the corresponding auxiliary sub-device is connected. For example, when the gas turbine is required to provide energy for the auxiliary sub-device related to power generation, the data communication between the auxiliary sub-device related to power generation and the main control device is connected; when the gas turbine is required to provide auxiliary energy for the operating device, the data communication between the operating device and the main control device is connected. After determining the data communication state, the auxiliary function parameters are obtained from the connected auxiliary sub-devices. Among them, the auxiliary function parameters are the parameters that the auxiliary sub-device is expected to realize the function, for example, the electrical parameters that the generator connected to the gas turbine needs to output, the wind speed and other operating parameters of the blower connected to the gas turbine, etc., which are not specifically limited in the embodiment of the present invention. Among them, each auxiliary sub-device is correspondingly configured with a processor or server for communication to receive and store the auxiliary function parameters, and can communicate data with the main control device through the device interface.

[0048] The gas turbine includes a compressor (air compressor), a combustion chamber, and a power blade (power turbine), wherein the control object may be any one or more of the above functional components, that is, the control object may be a compressor, a combustion chamber, or a power blade, or may be a compressor and a combustion chamber, a compressor, a combustion chamber, and a power blade, etc., which are not specifically limited in the embodiments of the present invention. The control parameter is a parameter expected to be required to control the operation of the object, for example, the temperature of the combustion chamber, the compression force of the compressor, etc.

[0049] It should be noted that by determining the control parameters of the corresponding functional components in the gas turbine based on the auxiliary function parameters of the auxiliary sub-equipment, a strong correlation can be established between the functions that the auxiliary sub-equipment is expected to achieve and the control parameters of the gas turbine, which can greatly increase the matching degree between the control parameters and the functions that the auxiliary sub-equipment is expected to achieve, improve the accuracy of the control parameters, and avoid repeated debugging of the control parameters, thereby effectively improving the control efficiency of the gas turbine.

[0050] 103. Calculate the control error range of the control object through the mechanism model built in the main control device that matches the auxiliary function parameters, and when the control error range matches within a preset error threshold range, perform a control operation on the control object based on the control parameters.

[0051] In the embodiment of the present invention, in the process of realizing specific functions, there is one or more of energy transfer, mechanical transmission relationship, and energy conversion relationship between the gas turbine and the auxiliary sub-equipment, and a corresponding data model, that is, a mechanism model, can be constructed according to the specific conversion relationship. Different auxiliary function parameters correspond to different auxiliary sub-equipment, which also correspond to different mechanism models. Furthermore, the control error range of the control object can be inferred based on the mechanism model and the control parameters to realize the verification of the control error range of the control object. Only when the verification passes, the control object is controlled based on the control parameters. If the verification fails, that is, the control error range is equal to or exceeds the preset error threshold range, it indicates that the current control parameter setting is unreasonable and needs to be readjusted.

[0052] It should be noted that the preset error threshold can be obtained according to the matching of the control parameters. For example, if the digit level of the control parameter is in the thousands, the error threshold of the units or tens in the preset error threshold set is taken as the preset error threshold; if the digit level of the control parameter is in the ten thousand level, the error threshold of the tens or hundreds in the preset error threshold set is taken as the preset error threshold. Of course, the preset error threshold can also be customized for different control objects according to the accuracy of the equipment in the specific application scenario, and the embodiment of the present invention does not make specific limitations. By building a mechanism model and calculating the control error range based on the mechanism model, the rationality of the setting of the control parameters can be accurately verified, thereby further ensuring the accuracy of the control parameters.

[0053] In the embodiments of the present invention, for further explanation and limitation, as Figure 2 As shown, before the main control device determines the control object and control parameters of the expected operation of the gas turbine, the method further includes:

[0054] 201. Parse the communication protocol classification of the data communication status through the main control device, and query the auxiliary sub-devices connected to the gas turbine based on the communication protocol classification.

[0055] 202. Send a parameter acquisition request to the auxiliary sub-device through the main control device, and receive auxiliary function parameters fed back by the auxiliary sub-device.

[0056] In the embodiment of the present invention, the auxiliary sub-device is a device used for data connection or energy connection with the gas turbine; the auxiliary function parameters are used to characterize the parameters of the auxiliary sub-device to assist the gas turbine in operation. Among them, the data connection device is a device that establishes data communication with the main control device, and the energy connection device is a device that has an energy transfer relationship with the gas turbine. The communication protocols corresponding to different auxiliary sub-devices can be of the same category or different categories. Therefore, it is necessary to parse the communication protocol classification to query the auxiliary sub-devices connected to the gas turbine through the communication protocol classification. Among them, the communication protocol classification can include modbus communication protocol, RS-232 communication protocol, RS-485 communication protocol, MPI communication, serial communication, industrial Ethernet, PPI communication, Profibus-DP, etc., which are not specifically limited in the embodiment of the present invention.

[0057] In the embodiment of the present invention, for further explanation and limitation, the step of determining the control object and control parameters of the expected operation of the gas turbine by the main control device includes:

[0058] Displaying all reference control objects of the gas turbine through the control interface in the main control device;

[0059] After the control object is selected from the reference control objects through the control interface, a control parameter matching the control object is searched based on a preset control object parameter mapping relationship; or,

[0060] The control demand information of the gas turbine matching the auxiliary function parameters is determined by the main control device, and the control object and control parameters matching the control demand information are determined according to the demand control mapping relationship.

[0061] In an embodiment of the present invention, the main control device provides a flexible control parameter configuration method, including a manual intervention configuration method based on a human-computer interaction device, and an automatic configuration method based on a preset control mapping relationship. In the manual intervention configuration method, the main control device of the gas turbine configures an interactive device, and the human-computer interaction interface displayed by the interactive device contains all reference control objects of the gas turbine, that is, all functional components that can configure control parameters. The user can select any control object from this interface and configure at least one control parameter under this control object. In the interactive control for configuration, a drop-down option of commonly used control parameters can be displayed, or the user can input it separately, which is not specifically limited in the embodiment of the present invention. In the drop-down option, each control parameter is obtained by querying based on the preset control object parameter mapping relationship and matches the control object. The preset control object parameter mapping relationship presets the correspondence between different control parameters and different control parameters.

[0062] In the automatic configuration mode, control demand information corresponding to different auxiliary function parameters is pre-configured, as well as the mapping relationship between different control demand information and different control objects, and different control parameters of the control objects, that is, the demand control mapping relationship. Among them, the control demand information is the control target that the gas turbine needs to achieve when the corresponding auxiliary function parameters are met, for example, the mechanical energy that the gas turbine needs to output per unit time. The control target of the gas turbine is achieved by the coordinated control of each control object. Therefore, the control object and control parameters can be determined based on this control demand information. For example, the pressure of the compressor, the intake temperature, the fuel-air mixture ratio of the combustion chamber, the gas temperature, and the exhaust temperature need to be reached at a certain level for the gas turbine to meet the control demand.

[0063] It should be noted that the same control demand information may correspond to control schemes for multiple control objects. For example, in order to meet the demand value of the gas turbine output mechanical energy, it can be achieved by controlling the parameters of the compressor alone or the air intake of the combustion chamber alone, or by collaboratively controlling the compressor and the combustion chamber. In this case, the matching of the control object and the control parameter can be completed by random matching or manual intervention selection. When the mapping relationship is constructed, different control schemes can be prioritized according to the control characteristics, and when there is no manual intervention, the control scheme with the highest priority is selected. Among them, the control characteristics can be the minimum fuel input, the highest control efficiency, etc., which are not specifically limited in the embodiments of the present invention.

[0064] In the embodiment of the present invention, for further explanation and limitation, the step of calculating the control error range of the control object by using the mechanism model matching the auxiliary function parameters built in the main control device includes:

[0065] Obtaining the equipment mechanics relationship and equipment energy conversion relationship of the auxiliary sub-equipment through the main control device, and building a mechanism model between the gas turbine and each of the auxiliary sub-equipment in combination with the auxiliary function parameters, the equipment mechanics relationship, or the equipment capacity conversion relationship;

[0066] The control error range of the control object is calculated in the main control device based on the mechanism model.

[0067] In the embodiment of the present invention, the mechanism model is a mathematical model constructed by multiple mathematical formulas that can reflect the mechanical transfer and energy transfer relationship from the gas turbine to the auxiliary sub-equipment. Taking the auxiliary sub-equipment as a generator as an example, when the auxiliary function parameter is the effective power of the generator, the mechanism model can be constructed based on the relationship formula between the effective power of the generator and the gas turbine, and the energy conversion formula between the internal components of the gas turbine. Specifically, the auxiliary function parameter of the generator (generator effective power) is set to 5, and the mechanical power P1 required to be output by the gas turbine can be calculated according to the following formula:

[0068]

[0069] Among them, P2 is the effective power of the generator, j is the moment of inertia of the gas turbine, g is the acceleration of gravity, and N is the turbine speed of the gas turbine.

[0070] According to the relationship between the gas turbine output mechanical power and the compressor compression ratio work:

[0071] P1=(P t -P h )ρ (2);

[0072] Where ρ is the mechanical efficiency, P h is the compressor power consumption, P t is the gas turbine output power, P h =δ×W(3); δ is the compressor inlet air flow rate, Among them, C a is the average specific heat capacity of air at constant pressure, T1 is the compressor inlet air temperature, γ c is the compressor compression ratio, k c is the compressor isentropic compression coefficient, T2 is the compressor exhaust temperature; C b is the average constant pressure specific heat capacity of flue gas, T3 is the gas temperature at the gas turbine inlet, T4 is the gas turbine exhaust temperature, γ t is the gas turbine expansion ratio, k t Gas turbine expansion coefficient.

[0073] After the mechanism model is built based on the above formula, when the control parameters are determined, the expected generator power is calculated based on the control parameters. The difference between the expected generator power and the effective generator power is the control error range of the control object. For example, when controlling a compressor, the control parameter is the set value of the exhaust temperature. Based on this control parameter based on formulas (1) to (4) and the exhaust temperature set value control error value, the range of the expected generator power can be calculated, and then the control error range obtained by subtracting the range of the expected generator power from the effective generator power can be calculated.

[0074] In the embodiment of the present invention, for further explanation and limitation, the method further includes:

[0075] When the main control device determines that the control error range exceeds a preset error threshold range, the control parameter is adjusted based on the auxiliary function parameter, so as to perform a control operation on the control object based on the adjusted control parameter.

[0076] In the embodiment of the present invention, since the control scheme corresponding to the auxiliary function parameter may not be limited to one, when it is found that the current control parameter cannot pass the check based on the control error range check, the control object and the corresponding control parameter can be selected from the remaining control schemes, and the control error range of the adjusted control parameter is continued to be calculated, and it is checked based on the preset error threshold range, until the adjusted control parameter meets the preset error threshold range, and the control operation is performed on the control object based on the adjusted control parameter. If the control parameters in all the remaining control schemes cannot pass the error check, an early warning message can also be generated to remind manual intervention to solve the problem.

[0077] The present invention provides a gas turbine control method. Compared with the prior art, the embodiment of the present invention obtains the data communication state of at least one device connection interface, and the device connection interface is used to perform data communication with the auxiliary sub-device of the gas turbine; after the auxiliary function parameters of the gas turbine are determined based on the data communication state, the control object and control parameters of the expected operation of the gas turbine are determined by the main control device; the control error range of the control object is calculated by the mechanism model matching the auxiliary function parameters built in the main control device, and when the control error range matches the preset error threshold range, the control object is controlled based on the control parameters, so as to strengthen the association between the gas turbine and the auxiliary sub-device, improve the adaptability of the control parameters and the auxiliary function parameters, and greatly enhance the accuracy of the control parameters. At the same time, by checking the control error range, the accuracy of the control parameter configuration can be further improved, and the debugging time of the control parameters can be reduced, thereby effectively improving the control efficiency of the gas turbine.

[0078] Furthermore, as a response to the above Figure 1 The embodiment of the present invention provides a gas turbine control system, such as Figure 3 As shown, the system includes:

[0079] A main control device 31, and a plurality of auxiliary sub-devices 32, wherein data communication is performed between the main control device and the plurality of auxiliary sub-devices 32;

[0080] The main control device 31 is used to obtain the data communication status of at least one device connection interface, and the device connection interface is used to perform data communication with the auxiliary sub-device 32 of the gas turbine;

[0081] After the auxiliary function parameters with respect to the gas turbine are determined based on the data communication state, the control object and control parameters of the expected operation of the gas turbine are determined by the main control device 31;

[0082] The control error range of the control object is calculated by using the mechanism model matching the auxiliary function parameter built in the main control device 31, and when the control error range matches a preset error threshold range, the control operation is performed on the control object based on the control parameter;

[0083] The auxiliary sub-device 32 is used to send auxiliary function parameters to the main control device 31 and operate according to the control instructions of the main control device 31.

[0084] Further, the main control device 31 is further specifically used to parse the communication protocol classification of the data communication state through the main control device 31, and query the auxiliary sub-device 32 connected to the gas turbine based on the communication protocol classification, the auxiliary sub-device 32 is used for data connection or energy connection with the gas turbine;

[0085] The main control device 31 sends a parameter acquisition request to the auxiliary sub-device 32, and receives auxiliary function parameters fed back by the auxiliary sub-device 32, wherein the auxiliary function parameters are used to characterize the parameters of the auxiliary sub-device 32 assisting the gas turbine in operating.

[0086] Furthermore, the main control device 31 is specifically used to display all reference control objects of the gas turbine through the control interface in the main control device 31;

[0087] After the control object is selected from the reference control objects through the control interface, a control parameter matching the control object is searched based on a preset control object parameter mapping relationship; or,

[0088] The control demand information of the gas turbine matching the auxiliary function parameters is determined by the main control device 31, and the control object and control parameters matching the control demand information are determined according to the demand control mapping relationship.

[0089] Furthermore, the main control device 31 is specifically used to obtain the equipment mechanics relationship and equipment energy conversion relationship of the auxiliary sub-equipment 32 through the main control device 31, and build a mechanism model between the gas turbine and each of the auxiliary sub-equipment 32 in combination with the auxiliary function parameters, the equipment mechanics relationship, or the equipment capacity conversion relationship;

[0090] The control error range of the control object is calculated in the main control device 31 based on the mechanism model.

[0091] Furthermore, the main control device 31 is specifically used to adjust the control parameter based on the auxiliary function parameter when the main control device 31 determines that the control error range exceeds a preset error threshold range, so as to control the control object based on the adjusted control parameter.

[0092] The present invention provides a gas turbine control system, comprising a main control device and a plurality of auxiliary sub-devices. Compared with the prior art, the embodiment of the present invention obtains the data communication status of at least one device connection interface, and the device connection interface is used for data communication with the auxiliary sub-device of the gas turbine; after the auxiliary function parameters of the gas turbine are determined based on the data communication status, the control object and control parameters of the expected operation of the gas turbine are determined by the main control device; the control error range of the control object is calculated by a mechanism model matching the auxiliary function parameters built in the main control device, and when the control error range matches a preset error threshold range, the control object is controlled based on the control parameters, thereby strengthening the association between the gas turbine and the auxiliary sub-devices, improving the adaptability of the control parameters and the auxiliary function parameters, and greatly enhancing the accuracy of the control parameters. At the same time, by verifying the control error range, the accuracy of the control parameter configuration can be further improved, and the debugging time of the control parameters can be reduced, thereby effectively improving the control efficiency of the gas turbine.

[0093] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas turbine control method, characterized in that: include: Acquiring, by means of a main control device, a data communication state of at least one device connection interface, wherein the device connection interface is used for data communication with an auxiliary sub-device of the gas turbine; After the auxiliary function parameters with respect to the gas turbine are determined based on the data communication state, the control object and control parameters of the expected operation of the gas turbine are determined by the main control device; The control error range of the control object is calculated by using a mechanism model that has been built in the main control device and matches the auxiliary function parameters, and when the control error range matches a preset error threshold range, the control object is controlled based on the control parameters.

2. The method according to claim 1, characterized in that: Before determining the control object and control parameters of the expected operation of the gas turbine by the main control device, the method further includes: Parsing the communication protocol classification of the data communication state by the main control device, and querying the auxiliary sub-device connected to the gas turbine based on the communication protocol classification, wherein the auxiliary sub-device is used for data connection or energy connection with the gas turbine; The main control device sends a parameter acquisition request to the auxiliary sub-device, and receives auxiliary function parameters fed back by the auxiliary sub-device, wherein the auxiliary function parameters are used to characterize the parameters of the auxiliary sub-device assisting the gas turbine in operating.

3. The method according to claim 2, characterized in that The determining of the control object and control parameters of the expected operation of the gas turbine by the main control device includes: Displaying all reference control objects of the gas turbine through the control interface in the main control device; After the control object is selected from the reference control objects through the control interface, a control parameter matching the control object is searched based on a preset control object parameter mapping relationship; or, The control demand information of the gas turbine matching the auxiliary function parameters is determined by the main control device, and the control object and control parameters matching the control demand information are determined according to the demand control mapping relationship.

4. The method according to claim 3, characterized in that The calculating of the control error range of the control object by using the mechanism model matching the auxiliary function parameter built in the main control device includes: Obtaining the equipment mechanics relationship and equipment energy conversion relationship of the auxiliary sub-equipment through the main control device, and building a mechanism model between the gas turbine and each of the auxiliary sub-equipment in combination with the auxiliary function parameters, the equipment mechanics relationship, or the equipment capacity conversion relationship; The control error range of the control object is calculated in the main control device based on the mechanism model.

5. The method according to claim 4, characterized in that The method further comprises: When the main control device determines that the control error range exceeds a preset error threshold range, the control parameter is adjusted based on the auxiliary function parameter, so as to perform a control operation on the control object based on the adjusted control parameter.

6. A gas turbine control system, characterized in that: include: A main control device, and a plurality of auxiliary sub-devices, wherein data communication is performed between the main control device and the plurality of auxiliary sub-devices; The main control device is used to obtain the data communication status of at least one device connection interface, and the device connection interface is used to perform data communication with the auxiliary sub-device of the gas turbine; After the auxiliary function parameters with respect to the gas turbine are determined based on the data communication state, the control object and control parameters of the expected operation of the gas turbine are determined by the main control device; Calculating the control error range of the control object through a mechanism model built in the main control device and matching the auxiliary function parameter, and performing a control operation on the control object based on the control parameter when the control error range matches a preset error threshold range; The auxiliary sub-device is used to send auxiliary function parameters to the main control device and operate according to the control instructions of the main control device.

7. The system according to claim 6, characterized in that The main control device is further used to parse the communication protocol classification of the data communication state through the main control device, and query the auxiliary sub-device connected to the gas turbine based on the communication protocol classification, wherein the auxiliary sub-device is used to establish data connection or energy connection with the gas turbine; The main control device sends a parameter acquisition request to the auxiliary sub-device, and receives auxiliary function parameters fed back by the auxiliary sub-device, wherein the auxiliary function parameters are used to characterize the parameters of the auxiliary sub-device assisting the gas turbine in operating.

8. The method according to claim 7, characterized in that The main control device is further configured to display all reference control objects of the gas turbine through a control interface in the main control device; After the control object is selected from the reference control objects through the control interface, a control parameter matching the control object is searched based on a preset control object parameter mapping relationship; or, The control demand information of the gas turbine matching the auxiliary function parameters is determined by the main control device, and the control object and control parameters matching the control demand information are determined according to the demand control mapping relationship.

9. The method according to claim 8, characterized in that The main control device is further specifically used to obtain the equipment mechanics relationship and equipment energy conversion relationship of the auxiliary sub-equipment through the main control device, and to build a mechanism model between the gas turbine and each of the auxiliary sub-equipment in combination with the auxiliary function parameters, the equipment mechanics relationship, or the equipment capacity conversion relationship; The control error range of the control object is calculated in the main control device based on the mechanism model.

10. The method according to claim 9, characterized in that The main control device is further specifically used to adjust the control parameter based on the auxiliary function parameter when the main control device determines that the control error range exceeds a preset error threshold range, so as to control the control object based on the adjusted control parameter.

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