Coal quantity dynamic compensation method, system and device for thermal power plant

Abstract

The invention relates to a coal quantity dynamic compensation method, system and device for a thermal power plant, and the method comprises the steps: calculating a first coal feeding instruction of a boiler coal feeder based on a fire coal quantity set value and a fire coal quantity measured value of the thermal power plant; based on the actually measured heat value of configuration coal in the boiler coal feeder, a coal feeding correction value is calculated in real time, and the configuration coal at least comprises one type of coal; based on the coal feeding correction value, the first coal feeding instruction is dynamically corrected in real time, a second coal feeding instruction is obtained, and the second coal feeding instruction is used for determining the coal feeding amount of the boiler coal feeder. Through the application, the calorific value of the configured coal is measured in real time to dynamically correct the coal feeding amount of the coal feeder under the condition that the calorific value changes due to coal quality changes caused by coal blending combustion, so that the risk of large fluctuation of main steam pressure and temperature of a thermal power plant caused by coal feeding amount allocation errors is avoided; the problem of how to improve the reasonable coal proportion of all coal feeders in thermal power generation is solved.

Description

Technical Field

[0001] The present application relates to the field of thermal power control technology, and in particular to a method, system and device for dynamic compensation of coal quantity in a thermal power plant. Background Art

[0002] The traditional coordinated control scheme of thermal power plants adopts the furnace-follow-machine mode, that is, the turbine control module controls the comprehensive valve position opening to respond to the variable load demand of the power grid, and the boiler control module controls the total amount of coal entering the furnace to dynamically adjust the main steam pressure. Furthermore, the total coal demand instruction will be transmitted to the fuel control module, and the fuel control module will evenly distribute the total coal demand to each operating coal feeder according to the actual number of coal feeders in operation.

[0003] The above traditional control scheme has the advantages of simple structure and fast adjustment. However, with the large-scale grid connection of renewable energy power generation in recent years, the rapid peak-shaving and frequency-regulating tasks undertaken by thermal power units, as well as the frequency and amplitude of unit load changes have increased significantly. Under the current coal blending and combustion conditions, the main steam pressure and temperature are prone to large fluctuations in the load change stage, resulting in some units exiting the coordinated operation mode of the units during the deep peak-shaving stage, which seriously threatens the safe and economic operation of the units.

[0004] At present, no effective solution has been proposed for the problem of how to improve the reasonable proportion of coal for each coal feeder in thermal power generation in the relevant technology. Summary of the invention

[0005] The embodiments of the present application provide a method, system and device for dynamic compensation of coal quantity in a thermal power plant, so as to at least solve the problem in the related art of how to improve the reasonable proportion of coal for each coal feeder in a thermal power plant.

[0006] In a first aspect, an embodiment of the present application provides a method for dynamic compensation of coal quantity in a thermal power plant, the method comprising:

[0007] Based on the set value of coal burning amount and the measured value of coal burning amount of the thermal power plant, the first coal feeding instruction of the boiler coal feeder is calculated;

[0008] Based on the measured calorific value of the coal configured in the boiler coal feeder, a coal feed correction value is calculated in real time, wherein the configured coal includes at least one type of coal;

[0009] Based on the coal feeding correction value, the first coal feeding instruction is dynamically corrected in real time to obtain a second coal feeding instruction, wherein the second coal feeding instruction is used to determine the coal feeding amount of the boiler coal feeder.

[0010] In some embodiments, based on the measured calorific value of the coal configured in the boiler coal feeder, the coal feed correction value is calculated in real time, including:

[0011] Get the coal position of the coal bunker of the boiler coal feeder;

[0012] Based on the coal position in the coal bunker of the boiler coal feeder and the measured calorific value of the configured coal, the combustion heat provided by the boiler coal feeder is calculated in real time;

[0013] Based on the combustion heat, a coal feeding correction value of the boiler coal feeder is calculated in real time.

[0014] In some embodiments, before calculating the coal feeding correction value in real time based on the measured calorific value of the coal configured in the boiler coal feeder, the method includes:

[0015] The actual calorific value of the coal configured in the boiler coal feeder is obtained through a calorific value measuring device, wherein the calorific value measuring device is installed behind the coal conveyor scale entering the furnace.

[0016] In some embodiments, obtaining the measured calorific value of coal configured in the boiler coal feeder by using a calorific value measuring device includes:

[0017] The first calorific value measurement algorithm is executed by the calorific value measurement device to calculate the actual calorific value of the coal configured in the boiler coal feeder;

[0018] Alternatively, the second calorific value measurement algorithm is executed by the calorific value measuring device to calculate the actual calorific value of the coal configured in the boiler coal feeder.

[0019] In some embodiments, the first calorific value measurement algorithm is executed by the calorific value measurement device to calculate the measured calorific value of the coal configured in the boiler coal feeder, including:

[0020] The first calorific value measurement algorithm is executed by the calorific value measurement device to calculate the actual calorific value of the coal configured in the boiler coal feeder, wherein the first calorific value measurement algorithm includes near infrared spectroscopy and laser induced breakdown spectroscopy.

[0021] In some embodiments, the calorific value measuring device executes a second calorific value measuring algorithm to calculate the measured calorific value of the coal configured in the boiler coal feeder, including:

[0022] The second calorific value measurement algorithm is executed by the calorific value measurement device to calculate the actual calorific value of the coal configured in the boiler coal feeder, wherein the second calorific value measurement algorithm is a multiple regression analysis method.

[0023] In some embodiments, based on the set value of coal burning amount and the measured value of coal burning amount of the thermal power plant, calculating the first coal feeding instruction of the boiler coal feeder includes:

[0024] Based on the set value of coal quantity and the measured value of coal quantity of the thermal power plant, the total coal supply quantity instruction is calculated;

[0025] Based on the number of boiler coal feeders and the total coal feed quantity instruction, a first coal feed instruction corresponding to each boiler coal feeder is calculated.

[0026] In some embodiments, based on the set value of coal burning amount and the measured value of coal burning amount of the thermal power plant, the total coal supply amount instruction is calculated including:

[0027] Based on the set value of coal consumption and the measured value of coal consumption in the thermal power plant, the total coal supply instruction is calculated through the PID control algorithm.

[0028] In a second aspect, an embodiment of the present application provides a coal quantity dynamic compensation system for a thermal power plant, the system comprising a pre-calculation module, a correction calculation module and a dynamic compensation module;

[0029] The pre-calculation module is used to calculate the first coal feeding instruction of the boiler coal feeder according to the set value of the coal burning amount and the measured value of the coal burning amount of the thermal power plant;

[0030] The correction calculation module is used to calculate the coal feeding correction value in real time according to the measured calorific value of the coal configured in the boiler coal feeder, wherein the configured coal includes at least one type of coal;

[0031] The dynamic compensation module is used to perform real-time dynamic correction on the first coal feeding instruction according to the coal feeding correction value to obtain a second coal feeding instruction, wherein the second coal feeding instruction is used to determine the coal feeding amount of the boiler coal feeder.

[0032] In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in the first aspect when executing the computer program.

[0033] Compared with the related art, the embodiment of the present application provides a method, system and device for dynamic compensation of coal quantity in a thermal power plant, wherein the method calculates a first coal feeding instruction of a boiler coal feeder based on a set value of coal combustion in the thermal power plant and an actual value of coal combustion; calculates a coal feeding correction value in real time based on the actual calorific value of coal configured in the boiler coal feeder, wherein the configured coal includes at least one type of coal; based on the coal feeding correction value, the first coal feeding instruction is dynamically corrected in real time to obtain a second coal feeding instruction, wherein the second coal feeding instruction is used to determine the coal feeding amount of the boiler coal feeder, thereby realizing real-time measurement of the calorific value of the configured coal to dynamically correct the coal feeding amount of the coal feeder when the calorific value changes due to coal blending and combustion, thereby avoiding the risk of large fluctuations in the main steam pressure and temperature of the thermal power plant caused by errors in coal feeding amount allocation, and solving the problem of how to improve the reasonable coal ratio of each coal feeder in thermal power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0035] Figure 1 is a flowchart of the steps of a method for dynamic compensation of coal quantity in a thermal power plant according to an embodiment of the present application;

[0036] Figure 2 is a structural block diagram of a coal quantity dynamic compensation system for a thermal power plant according to an embodiment of the present application;

[0037] Figure 3 It is a schematic diagram of the internal structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0039] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0040] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0041] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0042] After searching, the inventor found that some coal quantity compensation methods for thermal power plants are also disclosed in the relevant technology. For example, the patent with application number 202310337536.1 discloses a coal distribution system and method for a thermal power plant. However, the technical solution disclosed in the patent belongs to static compensation. The coal supply can only be corrected after the unit is tested under steady-state conditions. When the coal quality changes during operation, the correction value will become a boost to the risk of main steam pressure fluctuations in the unit, which is not conducive to the safe operation of the thermal power plant unit. Based on this, the present application provides a method for dynamic compensation of coal quantity, which aims to correct the coal supply of each coal feeder in real time when the coal quality of the coal configured in the coal feeder changes.

[0043] The present application embodiment provides a method for dynamic compensation of coal quantity in a thermal power plant. Figure 1 is a flowchart of the steps of the method for dynamic compensation of coal quantity in a thermal power plant according to an embodiment of the present application, such as Figure 1 As shown, the method comprises the following steps:

[0044] Step S102, based on the set value of the coal consumption of the thermal power plant and the measured value of the coal consumption, a first coal feeding instruction of the boiler coal feeder is calculated;

[0045] Step S102 specifically includes the following steps:

[0046] Step S1021, based on the set value of the coal consumption of the thermal power plant and the measured value of the coal consumption, a total coal supply quantity instruction is calculated;

[0047] Specifically, in step S1021, based on the set value of coal consumption and the actual value of coal consumption of the thermal power plant, the total coal supply quantity instruction is calculated by the PID control algorithm.

[0048] It should be noted that the PID control algorithm is a widely used feedback control algorithm in process control systems. It adjusts the output of the system through three control terms: proportional (P), integral (I) and derivative (D). The PID controller can help the system quickly stabilize near a set point and reduce the error (i.e., the difference between the set point and the actual measured value). Further, the proportional term (P): the proportional term is directly proportional to the error and its function is to respond to the error immediately; the integral term (I): the integral term accumulates the sum of the error over time, and the purpose is to eliminate the steady-state error; the derivative term (D): the derivative term is the feedback of the error change rate, and the purpose is to predict the future error trend in advance and reduce overshoot.

[0049] Step S1022: Based on the number of boiler coal feeders and the total coal feed quantity instruction, a first coal feed instruction corresponding to each boiler coal feeder is calculated.

[0050] Specifically, step S1022 distributes the total coal supply corresponding to the total coal supply instruction to each boiler coal feeder on an average basis based on the number of boiler coal feeders and the total coal supply instruction, and obtains the first coal supply instruction corresponding to each boiler coal feeder.

[0051] Step S104, based on the measured calorific value of the coal configured in the boiler coal feeder, a coal feed correction value is calculated in real time, wherein the configured coal includes at least one type of coal;

[0052] Before step S104, the method further includes step S103, obtaining the actual calorific value of the coal configured in the boiler coal feeder through a calorific value measuring device, wherein the calorific value measuring device is installed behind the coal conveyor scale entering the furnace.

[0053] Specifically, step S103 executes a first calorific value measurement algorithm through a calorific value measuring device to calculate the actual calorific value of the coal configured in the boiler coal feeder; or executes a second calorific value measurement algorithm through a calorific value measuring device to calculate the actual calorific value of the coal configured in the boiler coal feeder.

[0054] Preferably, in step S103, a first calorific value measurement algorithm is executed by a calorific value measuring device to calculate the actual calorific value of the coal configured in the boiler coal feeder, wherein the first calorific value measurement algorithm includes near-infrared spectroscopy and laser induced breakdown spectroscopy; or, a second calorific value measurement algorithm is executed by a calorific value measuring device to calculate the actual calorific value of the coal configured in the boiler coal feeder, wherein the second calorific value measurement algorithm is a multiple regression analysis method.

[0055] It should be noted that calorific value is an inherent property of coal, which describes the energy that can be released per unit mass of coal when it is completely burned. The first calorific value measurement algorithm belongs to online calorific value analysis. In other words, thermal power plants will be equipped with online calorific value analyzers that can detect coal in real time before it enters the combustion system. This method can provide instant calorific value data of coal. These online calorific value analyzers are usually based on near-infrared spectroscopy (NIR), laser induced breakdown spectroscopy (LIBS) or other rapid analysis technologies. The second calorific value measurement algorithm belongs to empirical formulas and statistical models. In other words, when a large amount of operating data of thermal power plants is accumulated, the calorific value of coal can be predicted by establishing empirical formulas or statistical models. For example, based on other characteristics of coal (such as volatile matter, ash, etc.), multiple regression analysis and other methods are used to estimate the calorific value.

[0056] Specifically, step S104 obtains the coal position in the coal bunker of the boiler coal feeder; based on the coal position in the coal bunker of the boiler coal feeder and the measured calorific value of the configured coal, calculates in real time the combustion heat provided by the boiler coal feeder; based on the combustion heat, calculates in real time the coal feeding correction value of the boiler coal feeder, wherein the configured coal includes at least one type of coal.

[0057] It should be noted that coal is an important fossil fuel. According to its formation process, chemical composition and physical properties, it can be divided into different types. If classified by geological maturity, the types of coal include peat, lignite, sub-bituminous coal, bituminous coal, anthracite, etc.; if classified by use, the types of coal include thermal coal, metallurgical coal, chemical coal, etc.

[0058] Step S106: Based on the coal feeding correction value, the first coal feeding instruction is dynamically corrected in real time to obtain a second coal feeding instruction, wherein the second coal feeding instruction is used to determine the coal feeding amount of the boiler coal feeder.

[0059] Through the above steps in the embodiment of the present application, it is achieved that when the coal quality changes due to coal blending and combustion, the calorific value of the configured coal is measured in real time to dynamically correct the coal feeding amount of the coal feeder, thereby avoiding the risk of large fluctuations in the main steam pressure and temperature of the thermal power plant due to errors in coal feeding amount allocation, and solving the problem of how to improve the reasonable coal ratio of each coal feeder in thermal power generation.

[0060] It should be noted that the steps shown in the above process or the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0061] The embodiment of the present application provides a coal quantity dynamic compensation system for a thermal power plant, Figure 2 is a structural block diagram of a coal quantity dynamic compensation system for a thermal power plant according to an embodiment of the present application, such as Figure 2 As shown, the system includes a pre-calculation module, a correction calculation module and a dynamic compensation module;

[0062] A pre-calculation module, used to calculate the first coal feeding instruction of the boiler coal feeder according to the set value of the coal burning amount and the measured value of the coal burning amount of the thermal power plant;

[0063] A correction calculation module is used to calculate the coal feeding correction value in real time according to the measured calorific value of the coal configured in the boiler coal feeder, wherein the configured coal includes at least one type of coal;

[0064] The dynamic compensation module is used to perform real-time dynamic correction on the first coal feeding instruction according to the coal feeding correction value to obtain a second coal feeding instruction, wherein the second coal feeding instruction is used to determine the coal feeding amount of the boiler coal feeder.

[0065] Through the pre-calculation module, correction calculation module and dynamic compensation module in the embodiments of the present application, it is possible to measure the calorific value of the configured coal in real time to dynamically correct the coal feeder when the coal quality changes due to coal blending and combustion, thereby avoiding the risk of large fluctuations in the main steam pressure and temperature of the thermal power plant due to errors in coal feed allocation, and solving the problem of how to improve the reasonable coal ratio of each coal feeder in thermal power generation.

[0066] It should be noted that the above modules can be functional modules or program modules, and can be implemented by software or hardware. For modules implemented by hardware, the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0067] This embodiment further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0068] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0069] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0070] In addition, in combination with the method for dynamic compensation of coal quantity in a thermal power plant in the above embodiment, the embodiment of the present application can provide a storage medium for implementation. The storage medium stores a computer program; when the computer program is executed by a processor, any one of the methods for dynamic compensation of coal quantity in a thermal power plant in the above embodiment is implemented.

[0071] In one embodiment, a computer device is provided, which may be a terminal. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a method for dynamic compensation of coal quantity in a thermal power plant is implemented. The display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covered on the display screen, or a key, trackball, or touchpad provided on the housing of the computer device, or an external keyboard, touchpad, or mouse, etc.

[0072] In one embodiment, Figure 3 is a schematic diagram of the internal structure of an electronic device according to an embodiment of the present application, such as Figure 3 As shown, an electronic device is provided, which may be a server, and its internal structure diagram may be as shown in Figure 3As shown. The electronic device includes a processor, a network interface, an internal memory and a non-volatile memory connected through an internal bus, wherein the non-volatile memory stores an operating system, a computer program and a database. The processor is used to provide computing and control capabilities, the network interface is used to communicate with an external terminal through a network connection, the internal memory is used to provide an environment for the operation of the operating system and the computer program, the computer program is executed by the processor to implement a method for dynamic compensation of coal quantity in a thermal power plant, and the database is used to store data.

[0073] Those skilled in the art will understand that Figure 3 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the electronic device to which the scheme of the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0074] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0075] Those skilled in the art should understand that the technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for dynamic compensation of coal quantity in a thermal power plant, characterized in that: The method comprises: Based on the set value of coal burning amount and the measured value of coal burning amount of the thermal power plant, the first coal feeding instruction of the boiler coal feeder is calculated; Based on the measured calorific value of the coal configured in the boiler coal feeder, a coal feed correction value is calculated in real time, wherein the configured coal includes at least one type of coal; Based on the coal feeding correction value, the first coal feeding instruction is dynamically corrected in real time to obtain a second coal feeding instruction, wherein the second coal feeding instruction is used to determine the coal feeding amount of the boiler coal feeder.

2. The method according to claim 1, characterized in that: Based on the measured calorific value of the coal configured in the boiler coal feeder, the coal feed correction value calculated in real time includes: Get the coal position of the coal bunker of the boiler coal feeder; Based on the coal position in the coal bunker of the boiler coal feeder and the measured calorific value of the configured coal, the combustion heat provided by the boiler coal feeder is calculated in real time; Based on the combustion heat, a coal feeding correction value of the boiler coal feeder is calculated in real time.

3. The method according to claim 1, characterized in that Before calculating the coal feeding correction value in real time based on the measured calorific value of the coal configured in the boiler coal feeder, the method includes: The actual calorific value of the coal configured in the boiler coal feeder is obtained through a calorific value measuring device, wherein the calorific value measuring device is installed behind the coal conveyor scale entering the furnace.

4. The method according to claim 3, characterized in that: The actual calorific value of the coal configured in the boiler coal feeder is obtained by the calorific value measuring device, including: The first calorific value measurement algorithm is executed by the calorific value measurement device to calculate the actual calorific value of the coal configured in the boiler coal feeder; Alternatively, the second calorific value measurement algorithm is executed by the calorific value measuring device to calculate the actual calorific value of the coal configured in the boiler coal feeder.

5. The method according to claim 4, characterized in that The first calorific value measurement algorithm is executed by the calorific value measurement device to calculate the actual calorific value of the coal configured in the boiler coal feeder, including: The first calorific value measurement algorithm is executed by the calorific value measurement device to calculate the actual calorific value of the coal configured in the boiler coal feeder, wherein the first calorific value measurement algorithm includes near infrared spectroscopy and laser induced breakdown spectroscopy.

6. The method according to claim 4, characterized in that The measured calorific value of the coal configured in the boiler coal feeder is calculated by executing the second calorific value measurement algorithm through the calorific value measurement device, including: The second calorific value measurement algorithm is executed by the calorific value measurement device to calculate the actual calorific value of the coal configured in the boiler coal feeder, wherein the second calorific value measurement algorithm is a multiple regression analysis method.

7. The method according to claim 1, characterized in that Based on the set value of coal consumption and the measured value of coal consumption in the thermal power plant, the first coal feeding instruction of the boiler coal feeder is calculated to include: Based on the set value of coal quantity and the measured value of coal quantity of the thermal power plant, the total coal supply quantity instruction is calculated; Based on the number of boiler coal feeders and the total coal feed quantity instruction, a first coal feed instruction corresponding to each boiler coal feeder is calculated.

8. The method according to claim 7, characterized in that Based on the set value of coal consumption and the measured value of coal consumption in the thermal power plant, the total coal supply instruction is calculated to include: Based on the set value of coal consumption and the measured value of coal consumption in the thermal power plant, the total coal supply instruction is calculated through the PID control algorithm.

9. A coal quantity dynamic compensation system for a thermal power plant, characterized in that: The system includes a pre-calculation module, a correction calculation module and a dynamic compensation module; The pre-calculation module is used to calculate the first coal feeding instruction of the boiler coal feeder according to the set value of the coal burning amount and the measured value of the coal burning amount of the thermal power plant; The correction calculation module is used to calculate the coal feeding correction value in real time according to the measured calorific value of the coal configured in the boiler coal feeder, wherein the configured coal includes at least one type of coal; The dynamic compensation module is used to perform real-time dynamic correction on the first coal feeding instruction according to the coal feeding correction value to obtain a second coal feeding instruction, wherein the second coal feeding instruction is used to determine the coal feeding amount of the boiler coal feeder.

10. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to perform the method according to any one of claims 1 to 8.

Images