A power plant operation and management system

Abstract

This invention relates to the field of coal-fired power plant monitoring, and more particularly to a power plant operation and management system, comprising: a data acquisition unit; a data analysis unit for determining the instability analysis method based on the stability of combustion temperature; an image analysis unit for determining the analysis target based on the stability of coal conveying morphology and determining the coal quantity determination method based on the reference height state of the coal profile; and a compensation and adjustment unit for determining the periodic coal conveying volume of the conveyor belt based on the reference coal quantity corresponding to each single frame of coal conveying image, and determining the uniformity of coal conveying based on the periodic coal conveying volume of each conveyor belt to select the transportation processing method. This solves the problem of unstable power plant power generation efficiency caused by uneven coal powder distribution on the conveyor belt during practical applications, avoids the impact of differences in coal conveying morphology on the actual working efficiency of the combustion furnace, and thus makes the invention more suitable for actual working scenarios, thereby improving the power generation efficiency and stability of the combustion furnace.

Description

Technical Field

[0001] This invention relates to the field of coal-fired power plant supervision, and more particularly to a power plant operation and management system. Background Technology

[0002] In the operation of thermal power plants, a large amount of coal is consumed. Coal management plays a crucial role in the safe production and economic efficiency of thermal power enterprises. It is also one of the most promising areas for ensuring production, energy conservation and environmental protection, reducing production costs, and improving economic efficiency. During the transportation of coal to the combustion furnace, uneven distribution of pulverized coal on the conveyor belt can lead to unstable coal flow at the furnace feed inlet, resulting in unstable flames and ultimately affecting the power plant's power generation efficiency and environmental performance. Furthermore, uneven pulverized coal distribution on the conveyor belt can also cause overload and malfunctions in the coal conveying equipment. If coal is too densely distributed in certain areas, it can overload the conveyor units, increasing the risk of damage or failure. Therefore, uneven pulverized coal distribution on the conveyor belt has a significant impact on thermal power plants. To ensure the stability and efficiency of power generation, measures must be taken to ensure uniform coal distribution on the conveyor belt.

[0003] CN212953223U discloses a smart coal conveying system for thermal power plants, comprising: a base, a crushing box fixedly installed on one side of the top of the base, a hopper fixedly installed on the top of the crushing box, grooves on both sides of the inner wall of the crushing box, sliders slidably connected inside the two grooves, a crushing roller fixedly installed between two aligned sliders, and a fixing mechanism at the top of the four sliders. This technical solution considers the problem that the amount of combustible coal conveyed cannot be guaranteed to be balanced during the conveying process, affecting the efficiency of thermal power generation. However, this invention does not consider how to accurately detect the amount of coal on the conveying mechanism to effectively control the parameters of the working device for crushing coal, thus making it impossible to accurately and effectively crush coal according to the actual working conditions, resulting in an impact on the efficiency of thermal power generation. Summary of the Invention

[0004] Therefore, the present invention provides a power plant operation and management system to overcome the problem in the prior art that the amount of combustible coal transported cannot be guaranteed to be balanced, which affects the efficiency of thermal power generation.

[0005] To achieve the above objectives, the present invention provides a power plant operation and management system, comprising:

[0006] The data acquisition unit is used to collect demand information;

[0007] A data analysis unit, connected to the data acquisition unit, is used to determine the instability analysis method based on the combustion temperature stability, and to determine the image acquisition speed based on the instability reference value and the conveyor belt speed.

[0008] An image analysis unit, which is connected to the data acquisition unit and the data analysis unit, is used to determine the analysis target based on the stability of the coal conveying morphology, and to determine the coal quantity determination method based on the reference height state of the coal contour when the analysis target is the coal contour of each single frame coal conveying image.

[0009] The compensation adjustment unit, which is connected to the image analysis unit, is used to determine the periodic coal transport volume of the conveyor belt based on the reference value of the coal quantity corresponding to each single frame coal transport image of the single conveyor belt, and to determine the coal transport uniformity and select the transport processing method based on the periodic coal transport volume of each conveyor belt.

[0010] The required information includes combustion temperature stability, reference values ​​for carbon dioxide in exhaust emissions, and coal profile;

[0011] The analysis target is the highest point of a single coal conveying profile or the coal profile of a single frame of a coal conveying image.

[0012] Different methods of determining coal quantity result in different reference values ​​for coal quantity.

[0013] Furthermore, the data acquisition unit detects the stability of the combustion temperature, and the data analysis unit is preset with different instability analysis methods, including a first instability analysis method for detecting the stability of exhaust gases.

[0014] And, a second instability analysis method for analyzing unstable reference values;

[0015] The selection of the instability analysis method is related to the preset combustion temperature stability range in which the combustion temperature stability is located.

[0016] Furthermore, the data acquisition unit detects the carbon dioxide reference value in the exhaust gas emission, and when the carbon dioxide reference value is within a preset carbon dioxide reference value range, the data analysis unit analyzes the unstable reference value.

[0017] Furthermore, the data analysis unit detects unstable reference values ​​and determines the image acquisition speed based on the unstable reference values. The image acquisition speed is positively correlated with the unstable reference values.

[0018] The value of the unstable reference value is related to the combustion temperature stability and the preset combustion temperature stability, or to the carbon dioxide reference value and the preset carbon dioxide reference value range.

[0019] Furthermore, the data analysis unit makes a secondary adjustment to the image acquisition speed based on the conveyor belt's transport speed;

[0020] The conveyor belt's transport speed is positively correlated with the image acquisition speed.

[0021] Furthermore, the image analysis unit determines the analysis target based on the stability of the coal conveying morphology, wherein the analysis target is the highest point of the contour or the coal contour of each single frame of the coal conveying image;

[0022] The selection of the analysis target is related to the range of morphological stability of the coal conveying morphology, and the coal conveying morphological stability is related to the similarity of the coal conveying images.

[0023] Furthermore, the image analysis unit detects the reference height of the coal outline in a single frame of coal conveying image, and determines the coal quantity determination method based on the state of the coal outline reference height. The coal quantity determination method includes a first coal quantity determination method that determines the reference value of the coal quantity based on the coal area, and a second coal quantity determination method that divides the coal outline and determines the reference value of the coal quantity based on the coal area of ​​each sub-region.

[0024] The method for determining the coal quantity is related to the reference height of the coal profile.

[0025] Furthermore, under the first image analysis condition, the image analysis unit determines the height approach sub-region and the edge sub-region based on the height of each reference point of the coal contour. The image analysis unit determines the coal quantity reference value based on the area of ​​the height approach sub-region and the area of ​​the edge sub-region. The coal quantity reference value is positively correlated with the area of ​​the height approach sub-region and the area of ​​the edge sub-region.

[0026] Among them, the influence parameter of the area of ​​the highly converging sub-region on the coal quantity reference value is greater than the influence parameter of the area of ​​the edge sub-region on the coal quantity reference value, and the first image analysis condition is that the image analysis unit adopts the second coal quantity determination method.

[0027] Furthermore, the compensation and adjustment unit determines the periodic coal transport volume of a single conveyor belt based on the reference value of the coal quantity corresponding to each single frame coal transport image of the single conveyor belt. The compensation and adjustment unit determines the coal transport uniformity based on the periodic coal transport volume of each conveyor belt, and determines the transport processing method based on the coal transport uniformity. The transport processing method includes increasing or decreasing the coal loading volume and transport speed. When the coal transport uniformity is within the preset coal transport uniformity range, the coal loading volume is adjusted according to the coal transport uniformity.

[0028] Furthermore, the adjustment amount of the coal loading amount is negatively correlated with the coal transportation uniformity, and the adjustment amount of the transportation rate is negatively correlated with the coal transportation uniformity.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: the technical solution of the present invention judges the stability of pulverized coal during the conveying process based on the stability of the combustion furnace temperature and adopts different instability analysis methods, making the selection of instability analysis methods more in line with actual working scenarios and more accurate. Furthermore, the data analysis unit determines whether to analyze unstable reference values ​​based on the carbon dioxide content in the exhaust gas, making the pre-judgment for analyzing unstable reference values ​​more accurate and avoiding misjudgment. In addition, the image analysis unit selects the analysis target based on the stability of the coal conveying morphology, allowing the present invention to select corresponding analysis methods for different coal conveying morphologies, avoiding the impact of differences in coal conveying morphologies on the actual working efficiency of the combustion furnace. Thus, the present invention is more in line with actual working scenarios, thereby improving the power generation efficiency and stability of the combustion furnace.

[0030] Furthermore, in this invention, the image analysis unit determines the height approach sub-region and the edge sub-region based on the height of each reference point of the coal material profile under the first image analysis condition. The image analysis unit determines the coal quantity reference value based on the area of ​​the height approach sub-region and the area of ​​the edge sub-region, making the determination of the coal quantity reference value more consistent with the actual coal material profile. It takes into account the influence of coal powder density at different locations of the coal material on the coal quantity reference value, thereby making the determination of the coal quantity reference value more accurate.

[0031] Furthermore, in this invention, the compensation and adjustment unit takes into account the different periodic coal transport amounts on each conveyor belt, and determines the periodic coal transport amount of the line based on the coal quantity reference value corresponding to each single frame image of each conveyor belt, and determines the coal transport uniformity. Under the premise of ensuring the working efficiency of the combustion furnace, the transport efficiency of pulverized coal during the transport process is improved, thereby improving the thermal efficiency and combustion efficiency of the combustion furnace. Attached Figure Description

[0032] Figure 1 This is a unit connection diagram of the power plant operation and management system according to an embodiment of the present invention;

[0033] Figure 2 This is a flowchart illustrating how the data analysis unit of this invention determines the instability analysis method based on combustion stability in an embodiment of the invention.

[0034] Figure 3 This is a flowchart illustrating how the image analysis unit determines the coal quantity based on the reference height of the coal profile, according to an embodiment of the present invention. Detailed Implementation

[0035] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0036] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0037] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0038] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] Please see Figures 1 to 3 As shown, the present invention provides a power plant operation and management system, comprising:

[0040] The data acquisition unit is used to collect demand information;

[0041] A data analysis unit, connected to the data acquisition unit, is used to determine the instability analysis method based on the combustion temperature stability, and to determine the image acquisition speed based on the instability reference value and the conveyor belt speed.

[0042] An image analysis unit, which is connected to the data acquisition unit and the data analysis unit, is used to determine the analysis target based on the stability of the coal conveying morphology, and to determine the coal quantity determination method based on the reference height state of the coal contour when the analysis target is the coal contour of each single frame coal conveying image.

[0043] The compensation adjustment unit, which is connected to the image analysis unit, is used to determine the periodic coal transport volume of the conveyor belt based on the reference value of the coal quantity corresponding to each single frame coal transport image of the single conveyor belt, and to determine the coal transport uniformity and select the transport processing method based on the periodic coal transport volume of each conveyor belt.

[0044] The required information includes combustion temperature stability, reference values ​​for carbon dioxide in exhaust emissions, and coal profile;

[0045] The analysis target is the highest point of a single coal conveying profile or the coal profile of a single frame of a coal conveying image.

[0046] Different methods of determining coal quantity result in different reference values ​​for coal quantity.

[0047] Specifically, the data acquisition unit detects the stability of the combustion temperature, and the data analysis unit is preset with different instability analysis methods, including a first instability analysis method for detecting the stability of exhaust gases.

[0048] And, a second instability analysis method for analyzing unstable reference values;

[0049] The selection of the instability analysis method is related to the preset combustion temperature stability range in which the combustion temperature stability is located.

[0050] Specifically, the data acquisition unit includes a thermal imaging device that scans the combustion furnace. The combustion temperature stability is the maximum temperature difference detected by the thermal imaging device, where the maximum temperature difference is an absolute value. The preset combustion temperature stability range includes a first preset combustion temperature stability range, a second preset combustion temperature stability range, and a third preset combustion temperature stability range. When the combustion temperature stability is within the first preset combustion temperature stability range, the combustion temperature stability is deemed acceptable. When the combustion temperature stability is within the second preset combustion temperature stability range, a first instability analysis method is used. When the combustion temperature stability is within the third preset combustion temperature stability range, a second instability analysis method is used. The first preset combustion temperature stability range is [0, 50], the second preset combustion temperature stability range is (50, 100], and all values ​​within the third preset combustion temperature stability range are greater than 100, with units in °C.

[0051] Specifically, the data acquisition unit detects the carbon dioxide reference value in the exhaust gas emission, and when the carbon dioxide reference value is within a preset carbon dioxide reference value range, the data analysis unit analyzes the unstable reference value.

[0052] Specifically, the carbon dioxide reference value is the absolute value of the difference between the maximum and minimum carbon dioxide content in the exhaust gas of the combustion furnace during a single monitoring cycle. The unit of carbon dioxide content is %, and the values ​​within the preset carbon dioxide reference value range are all greater than 8%. If the carbon dioxide reference value is less than or equal to 8%, it is determined that the carbon dioxide reference value is qualified and no instability analysis is required.

[0053] Specifically, the data analysis unit detects unstable reference values ​​and determines the image acquisition speed based on the unstable reference values. The image acquisition speed is positively correlated with the unstable reference values.

[0054] The value of the unstable reference value is related to the combustion temperature stability and the preset combustion temperature stability, or to the carbon dioxide reference value and the preset carbon dioxide reference value range.

[0055] Specifically, the data analysis unit makes secondary adjustments to the image acquisition speed based on the conveyor belt's transport speed;

[0056] The conveyor belt's transport speed is positively correlated with the image acquisition speed.

[0057] As will be readily understood by those skilled in the art, the image acquisition speed is the number of images acquired by the line laser camera per unit time. The data analysis unit, under image acquisition conditions, controls the data acquisition unit to acquire multiple frames of coal conveying images of the conveyor belt within a single monitoring cycle. The line laser camera uses the line laser scanning principle and has a built-in line laser, capable of generating longitudinal or transverse laser beams. First, the line laser camera acquires images of the conveyor belt when it is unloaded, obtaining the outline segment of the conveyor belt in the unloaded state. This outline segment is then set as the lower outline of the three-dimensional cross-section of the coal under load conditions. A single monitoring... When acquiring multiple frames of coal conveying images within a cycle, the upper contour line of the three-dimensional cross-section of the coal on the conveyor belt under load is captured. The position of the line laser camera is set by the user. It is worth noting that the position of the line laser camera should ensure that it is positioned above the conveyor belt, and the laser beam illuminates the entire surface of the conveyor belt to obtain overall structural information. Furthermore, in this invention, a preset sampling point is taken at a position 10m away from the feeding end of the conveyor belt. In a single frame of coal conveying images, the image composed of the upper contour image corresponding to the preset sampling point and the pre-set lower contour line is recorded as the coal contour corresponding to the single frame of coal conveying images.

[0058] Specifically, the method for determining the unstable reference value is as follows: if the combustion temperature stability is within the third preset combustion temperature stability range, the unstable reference value = (combustion temperature stability - 100) / 100; if the combustion temperature stability is within the second preset combustion temperature stability range and the carbon dioxide reference value is within the preset carbon dioxide reference value range, the unstable reference value = (carbon dioxide reference value - 8%) / 8%.

[0059] Specifically, the image analysis unit determines the analysis target based on the stability of the coal conveying morphology. The analysis target is the highest point of the contour or the coal contour of each single frame of the coal conveying image.

[0060] The selection of the analysis target is related to the range of morphological stability of the coal conveying morphology, and the coal conveying morphological stability is related to the similarity of the coal conveying images.

[0061] Specifically, for a single conveyor belt, the coal conveying morphology stability is the maximum absolute value among the area differences of two coal material contours obtained in a single monitoring cycle. The morphology stability range includes a first preset morphology stability range and a second preset morphology stability range. If the coal conveying morphology stability is within the first preset morphology stability range, the analysis target is the highest point of the contour. If the coal conveying morphology stability is within the second preset morphology stability range, the analysis target is the coal material contour of each single frame coal conveying image. The first preset morphology stability range is (0, X], and the values ​​within the second preset morphology stability range are all greater than X, where X = C²C is 25% of the conveyor belt width.

[0062] Specifically, the image analysis unit detects the reference height of the coal outline in a single frame of coal conveying image, and determines the coal quantity determination method based on the state of the coal outline reference height. The coal quantity determination method includes a first coal quantity determination method that determines the reference value of the coal quantity based on the coal area, and a second coal quantity determination method that divides the coal outline and determines the reference value of the coal quantity based on the coal area of ​​each sub-region.

[0063] The method for determining the coal quantity is related to the reference height of the coal profile.

[0064] Specifically, the reference height of the coal outline is the shortest distance from the highest point of the upper outline of the coal outline to the reference horizontal plane. The reference horizontal plane is any horizontal plane at any height between the conveyor belt and the horizontal ground, and is parallel to the ground. The coal outline reference height states are a first coal outline reference height state and a second coal outline reference height state. When the coal outline reference height state is in the first coal outline reference height state, the coal quantity determination method is selected based on the coal area to determine the reference value of the coal quantity. When the coal outline reference height state is in the second coal outline reference height state, the coal reference height in the first coal outline reference height state is greater than or equal to 0 and less than 40, and the coal reference height in the second coal outline reference height state is greater than or equal to 40, in cm.

[0065] Specifically, under the first image analysis condition, the image analysis unit determines the height approach sub-region and the edge sub-region based on the height of each reference point of the coal contour. The image analysis unit determines the coal quantity reference value based on the area of ​​the height approach sub-region and the area of ​​the edge sub-region. The coal quantity reference value is positively correlated with the area of ​​the height approach sub-region and the area of ​​the edge sub-region.

[0066] Among them, the influence parameter of the area of ​​the highly converging sub-region on the coal quantity reference value is greater than the influence parameter of the area of ​​the edge sub-region on the coal quantity reference value, and the first image analysis condition is that the image analysis unit adopts the second coal quantity determination method.

[0067] Specifically, the sub-regions include height-approaching sub-regions and edge sub-regions. The method for determining the height-approaching sub-region is as follows: select two points where the upper and lower contour lines intersect and record them as edge reference points. Record the point on the upper contour line closest to the midpoint of the line connecting the two edge reference points as the starting point. Using the starting point as the origin, search for points on the upper contour line 2cm away from the starting point. If the absolute value of the difference between the height of the two points from the reference horizontal plane and the height of the starting point from the reference horizontal plane is less than 5cm, then increase the search distance to search for points on the upper contour line 4cm away from the starting point. The increment of the search distance in a single search is 2cm. If there is a point whose absolute value of the difference between the height of the point from the reference horizontal plane and the height of the starting point from the reference horizontal plane is greater than or equal to 5cm, then determine the two points obtained from the most recent search as the dividing points. Record the largest rectangular area within the coal contour between the dividing points as the height-approaching sub-region, and record the area within the coal contour excluding the height-approaching sub-region as the edge sub-region.

[0068] Specifically, the compensation and adjustment unit determines the periodic coal transport volume of a single conveyor belt based on the reference value of the coal quantity corresponding to each single frame coal transport image of the single conveyor belt. The compensation and adjustment unit determines the coal transport uniformity based on the periodic coal transport volume of each conveyor belt, and determines the transport processing method based on the coal transport uniformity. The transport processing method includes increasing or decreasing the coal loading volume and transport speed. When the coal transport uniformity is within the preset coal transport uniformity range, the coal loading volume is adjusted according to the coal transport uniformity.

[0069] Specifically, the periodic coal transport volume is the sum of the reference values ​​of coal quantity corresponding to each single frame of coal transport image of a single conveyor belt within a single monitoring cycle. The duration of a single monitoring cycle is 10 minutes, which can be set by the user according to actual work needs.

[0070] For a single conveyor belt, the uniformity of coal transportation is the value obtained by subtracting the average coal transportation amount from the corresponding periodic coal transportation amount of that conveyor belt. The average coal transportation amount is the average of the sum of the corresponding periodic coal transportation amounts of all conveyor belts.

[0071] Specifically, the adjustment amount of the coal loading amount is negatively correlated with the coal transportation uniformity, and the adjustment amount of the transportation rate is negatively correlated with the coal transportation uniformity.

[0072] Specifically, the formula for calculating the reference value of coal quantity is as follows: ;

[0073] in, This is the reference height state of the first coal material profile. This is the reference height for the second coal profile. To closely approximate the area of ​​the sub-region, The area of ​​the edge sub-region. .

[0074] The coal loading capacity is the amount of coal fed into the conveyor belt at the feeding end per unit time, and the transport rate is the moving speed of the conveyor belt.

[0075] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0076] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A power plant operation and management system, characterized in that, include: The data acquisition unit is used to collect demand information; A data analysis unit, connected to the data acquisition unit, is used to determine the instability analysis method based on the combustion temperature stability, and to determine the image acquisition speed based on the instability reference value and the conveyor belt speed. An image analysis unit, which is connected to the data acquisition unit and the data analysis unit, is used to determine the analysis target based on the stability of the coal conveying morphology, and to determine the coal quantity determination method based on the reference height state of the coal contour when the analysis target is the coal contour of each single frame coal conveying image. The compensation adjustment unit, which is connected to the image analysis unit, is used to determine the periodic coal transport volume of the conveyor belt based on the reference value of the coal quantity corresponding to each single frame coal transport image of the single conveyor belt, and to determine the coal transport uniformity and select the transport processing method based on the periodic coal transport volume of each conveyor belt. The required information includes combustion temperature stability, reference values ​​for carbon dioxide in exhaust emissions, and coal profile; The analysis target is the highest point of a single coal conveying profile or the coal profile of a single frame of a coal conveying image. The data acquisition unit detects the stability of the combustion temperature, and the data analysis unit has different preset instability analysis methods, including a first instability analysis method for detecting the stability of emission gases. And, a second instability analysis method for analyzing unstable reference values; The selection of the instability analysis method is related to the preset combustion temperature stability range in which the combustion temperature stability is located; The data acquisition unit detects the carbon dioxide reference value in the exhaust gas emission, and when the carbon dioxide reference value is within the preset carbon dioxide reference value range, the data analysis unit analyzes the unstable reference value. The data analysis unit detects unstable reference values ​​and determines the image acquisition speed based on these unstable reference values. The image acquisition speed is positively correlated with the unstable reference values. The value of the unstable reference value is related to the combustion temperature stability and the preset combustion temperature stability, or to the carbon dioxide reference value and the preset carbon dioxide reference value range. The image analysis unit determines the analysis target based on the stability of the coal conveying morphology. The analysis target is the highest point of the contour or the coal contour of each single frame of the coal conveying image. The selection of the analysis target is related to the range of morphological stability of the coal conveying morphology, and the coal conveying morphological stability is related to the similarity of the coal conveying images. The image analysis unit detects the reference height of the coal outline in a single frame of coal conveying image, and determines the coal quantity determination method based on the state of the coal outline reference height. The coal quantity determination method includes a first coal quantity determination method that determines the reference value of the coal quantity based on the coal area, and a second coal quantity determination method that divides the coal outline and determines the reference value of the coal quantity based on the coal area of ​​each sub-region. The choice of coal quantity determination method is related to the reference height state of the coal profile; Under the first image analysis condition, the image analysis unit determines the height approach sub-region and the edge sub-region based on the height of each reference point of the coal contour. The image analysis unit determines the coal quantity reference value based on the area of ​​the height approach sub-region and the area of ​​the edge sub-region. The coal quantity reference value is positively correlated with the area of ​​the height approach sub-region and the area of ​​the edge sub-region. Among them, the influence parameter of the area of ​​the highly converging sub-region on the coal quantity reference value is greater than the influence parameter of the area of ​​the edge sub-region on the coal quantity reference value, and the first image analysis condition is that the image analysis unit adopts the second coal quantity determination method; The compensation and adjustment unit determines the periodic coal transport volume of a single conveyor belt based on the reference value of the coal quantity corresponding to each single frame coal transport image of the single conveyor belt. The compensation and adjustment unit determines the coal transport uniformity based on the periodic coal transport volume of each conveyor belt, and determines the transport processing method based on the coal transport uniformity. The transport processing method includes increasing or decreasing the coal loading volume and transport speed. When the coal transport uniformity is within the preset coal transport uniformity range, the coal loading volume is adjusted according to the coal transport uniformity. Different methods of determining coal quantity result in different reference values ​​for coal quantity.

2. The power plant operation management system according to claim 1, characterized in that, Data Analysis Unit The image acquisition speed is adjusted secondary based on the conveyor belt's transport speed; The conveyor belt's transport speed is positively correlated with the image acquisition speed.

3. The power plant operation management system according to claim 1, characterized in that, The adjustment amount of the coal loading amount is negatively correlated with the coal transportation uniformity, and the adjustment amount of the transportation rate is negatively correlated with the coal transportation uniformity.

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