Power station operation management system

Abstract

The invention relates to the field of coal-fired power plant supervision, in particular to a power plant operation management system. The data analysis unit is used for determining an instability analysis mode according to the combustion temperature stability; the image analysis unit is used for determining an analysis target according to the coal conveying form stability and determining a coal quantity determination mode according to the coal material contour reference height state; the compensation adjusting unit is used for determining the periodic coal conveying quantity of the conveying belt according to the coal quantity reference value corresponding to each single-frame coal conveying image, and determining the coal conveying unification degree according to the periodic coal conveying quantity of each conveying belt to select a conveying processing mode; the problem that the power generation efficiency of a power station is not stable due to the fact that pulverized coal on the conveying belt is not evenly distributed in the actual application process is solved, the situation that the actual working efficiency of the combustion furnace is affected by the difference of coal conveying forms is avoided, then the method better conforms to the actual working scene, and therefore the power generation efficiency and stability of the combustion furnace are improved.

Description

Technical Field

[0001] The present invention relates to the field of coal-fired power plant supervision, and in particular to a power plant operation management system. Background Art

[0002] Thermal power plants consume vast quantities of coal during operation, and coal management plays a crucial role in ensuring safe production and ensuring economic efficiency. It also holds the greatest potential for ensuring production, achieving 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 levels at the furnace feed port, causing unstable combustion furnace flames and ultimately compromising power plant efficiency and environmental performance. Furthermore, uneven distribution of pulverized coal on the conveyor belt can lead to overload and failure of the coal handling equipment. If coal is too densely distributed in certain areas, it can overload the conveyor unit, increasing the risk of damage or failure. Therefore, uneven distribution of pulverized coal on the conveyor belt significantly impacts thermal power plants. To ensure stable and efficient power generation, measures must be implemented to ensure uniform distribution of coal on the conveyor belt.

[0003] Chinese patent announcement No. CN212953223U discloses an intelligent coal transportation system for a thermal power plant, 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, chutes on both sides of the inner wall of the crushing box, sliders slidably connected to the inside of the two chutes, a crushing roller fixedly installed between the two aligned sliders, and a fixing mechanism provided on the tops of the four sliders; this technical solution takes into account the problem that the amount of combustible coal cannot be guaranteed to be balanced during transportation, thereby 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 the coal, thereby making it impossible to accurately and effectively crush the coal according to the actual working conditions, resulting in the efficiency of thermal power generation being affected. Summary of the Invention

[0004] To this end, the present invention provides a power plant operation management system to overcome the problem in the prior art that the combustible coal cannot be transported in a balanced manner during transportation, thereby affecting the efficiency of thermal power generation.

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

[0006] A data acquisition unit, used to collect demand information;

[0007] a data analysis unit connected to the data acquisition unit, configured to determine an instability analysis method according to the combustion temperature stability, and to determine an image acquisition speed according to an instability reference value and a transport speed of the conveyor belt;

[0008] an image analysis unit connected to the data acquisition unit and the data analysis unit, for determining an analysis target based on the stability of the coal conveying shape, and determining a coal quantity determination method based on a reference height state of the coal contour when the analysis target is the coal contour of each single-frame coal conveying image;

[0009] a compensation adjustment unit connected to the image analysis unit, for determining the periodic coal transport volume of a conveyor belt based on the reference value of the coal volume corresponding to each single-frame coal transport image of a single conveyor belt, and determining the coal transport uniformity based on the periodic coal transport volume of each conveyor belt and selecting a transportation processing mode;

[0010] Required information includes combustion temperature stability, CO2 reference value in exhaust gas emissions, and coal profile;

[0011] The analysis target is the highest point of the coal material profile of a single coal conveyor or the coal material profile of a single frame coal conveyor image;

[0012] Among them, different coal quantity determination methods determine different coal quantity reference values.

[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, and the instability processing method includes a first instability analysis method for detecting the stability of the exhaust gas,

[0014] and, a second instability analysis method for analyzing an unstable reference value;

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

[0016] Furthermore, the data acquisition unit detects a carbon dioxide reference value in exhaust emissions, 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 the unstable reference value and determines the image acquisition speed according to the unstable reference value, wherein the image acquisition speed is positively correlated with the unstable reference value;

[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 performs secondary adjustment on the image acquisition speed according to the transport speed of the conveyor belt;

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

[0021] Furthermore, the image analysis unit determines an analysis target according to the stability of the coal conveying shape, 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 morphological stability range of the coal conveying morphological stability, and the coal conveying morphological stability is related to the similarity of the coal conveying images.

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

[0024] The selection of the coal quantity determination method is related to the reference height state of the coal profile.

[0025] Furthermore, the image analysis unit determines a height approach subregion and an edge subregion according to the heights of each reference point of the coal profile under the first image analysis condition, and determines a coal quantity reference value according to the area of ​​the height approach subregion and the area of ​​the edge subregion, wherein the coal quantity reference value is positively correlated with the area of ​​the height approach subregion, and the coal quantity reference value is positively correlated with the area of ​​the edge subregion;

[0026] Among them, the influence parameter of the area of ​​the highly approaching 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 the conveyor belt based on the reference value of the coal volume corresponding to each single-frame coal transportation image of a 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 transportation processing method based on the coal transport uniformity. The coal transportation processing method includes increasing or decreasing the coal loading volume and the transportation rate, and 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, 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 effect of the present invention lies in that the technical solution of the present invention adopts different instability analysis methods according to the stability of the combustion furnace temperature to judge the stability of the coal powder during the transmission process, so that the selection of the instability analysis method is more in line with the actual working scene and more accurate, and the data analysis unit determines whether to analyze the unstable reference value according to the content of carbon dioxide in the exhaust gas emissions, so that the pre-judgment of the analysis of the unstable reference value is more accurate, avoiding misjudgment, and the image analysis unit in the present invention selects the analysis target according to the stability of the coal transportation form, so that the present invention selects the corresponding analysis method for different coal transportation forms, avoiding the influence of the actual combustion furnace working efficiency due to the difference in coal transportation forms, and thus making the present invention more in line with the actual working scene, thereby improving the power generation efficiency and stability of the combustion furnace.

[0030] Furthermore, in the present invention, the image analysis unit determines the height approach sub-region and the edge sub-region according to the heights of each reference point of the coal material contour under the first image analysis condition, and the image analysis unit determines the coal quantity reference value according to the area of ​​the height approach sub-region and the area of ​​the edge sub-region, so that the determination of the coal quantity reference value is more consistent with the actual coal material contour, and takes into account the influence of the coal powder density at different positions of the coal material on the coal quantity reference value, thereby making the determination of the coal quantity reference value more accurate.

[0031] Furthermore, the compensation and adjustment unit in the present invention takes into account the different periodic coal transportation volumes on each conveyor belt, thereby determining the periodic coal transportation volume of the line based on the coal volume reference value corresponding to each single-frame image of each conveyor belt, and determining the uniformity of coal transportation. On the premise of ensuring the working efficiency of the combustion furnace, the transportation efficiency of coal powder during the transportation process is improved, thereby improving the thermal efficiency and combustion efficiency of the combustion furnace. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0033] Figure 2 This is a flow chart of a data analysis unit determining an instability treatment method according to combustion stability according to an embodiment of the present invention;

[0034] Figure 3 This is a flow chart of a method for determining the amount of coal according to a reference height state of a coal profile by an image analysis unit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain 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 the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating 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 does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0038] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

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

[0040] A data acquisition unit, used to collect demand information;

[0041] a data analysis unit connected to the data acquisition unit, configured to determine an instability analysis method according to the combustion temperature stability, and to determine an image acquisition speed according to an instability reference value and a transport speed of the conveyor belt;

[0042] an image analysis unit connected to the data acquisition unit and the data analysis unit, for determining an analysis target based on the stability of the coal conveying shape, and determining a coal quantity determination method based on a reference height state of the coal contour when the analysis target is the coal contour of each single-frame coal conveying image;

[0043] a compensation adjustment unit connected to the image analysis unit, for determining the periodic coal transport volume of a conveyor belt based on the reference value of the coal volume corresponding to each single-frame coal transport image of a single conveyor belt, and determining the coal transport uniformity based on the periodic coal transport volume of each conveyor belt and selecting a transportation processing mode;

[0044] Required information includes combustion temperature stability, CO2 reference value in exhaust gas emissions, and coal profile;

[0045] The analysis target is the highest point of the coal material profile of a single coal conveyor or the coal material profile of a single frame coal conveyor image;

[0046] Among them, different coal quantity determination methods determine different coal quantity reference values.

[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. The instability processing method includes a first instability analysis method for detecting the stability of the exhaust gas.

[0048] and, a second instability analysis method for analyzing an unstable reference value;

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

[0050] Specifically, the data acquisition unit includes a thermal imaging device, which is used to scan the combustion furnace. The combustion temperature stability is the maximum temperature difference detected by the thermal imaging device, and 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 determined to be qualified. When the combustion temperature stability is within the second preset combustion temperature stability range, the first instability analysis method is adopted. When the combustion temperature stability is within the third preset combustion temperature stability range, the second instability analysis method is adopted. Among them, the first preset combustion temperature stability range is [0,50], the second preset combustion temperature stability range is (50,100], and the values ​​within the third preset combustion temperature stability range are all greater than 100, and the unit is ° C.

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

[0052] Specifically, the carbon dioxide reference value is the absolute value of the difference between the maximum carbon dioxide content in the exhaust gas at the exhaust port of the combustion furnace in a single monitoring cycle and the minimum carbon dioxide content. The unit of carbon dioxide content is %. 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%, the carbon dioxide reference value is judged to be qualified and no instability analysis is required.

[0053] Specifically, the data analysis unit detects the unstable reference value, and determines the image acquisition speed according to the unstable reference value, wherein the image acquisition speed has a positive correlation with the unstable reference value;

[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 performs secondary adjustments on the image acquisition speed according to the transport speed of the conveyor belt;

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

[0057] It is easy for those skilled in the art to understand that the image acquisition speed is the number of images collected by the line laser camera per unit time. The data analysis unit controls the data acquisition unit to collect multiple frames of coal transportation images of the conveyor belt within a single monitoring cycle under the image acquisition conditions. The line laser camera adopts the line laser scanning principle and has a built-in line laser that can generate longitudinal or transverse laser light. First, the line laser camera is used to obtain an image of the conveyor belt when it is unloaded, and the contour line segment of the conveyor belt in the unloaded state is obtained. The contour line segment is set as the lower contour line of the three-dimensional cross section of the coal material under the loaded state of the conveyor belt. A single monitoring When multiple frames of coal conveying images are collected within a cycle, the upper contour line of the three-dimensional cross section of the coal material on the conveyor belt under load is collected. 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 the line laser camera is set above the conveyor belt, and the laser light illuminates the entire surface of the conveyor belt to obtain overall structural information. In addition, in the present invention, the position 10m close to the loading end of the conveyor belt is taken as the preset point position. In a single-frame coal conveying image, the upper contour image corresponding to the preset point position and the image composed of the preset lower contour line are recorded as the coal material contour corresponding to the single-frame coal conveying image.

[0058] Specifically, the method for determining the unstable reference value is: if the combustion temperature stability is in the third preset combustion temperature stability range, the unstable reference value = (combustion temperature stability - 100) / 100; if the combustion temperature stability is in the second preset combustion temperature stability range and the carbon dioxide reference value is in 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 according to the stability of the coal conveying shape, and 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 morphological stability range of the coal conveying morphological stability, 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 morphological stability is the maximum value of the absolute value of the area difference between two coal contours in all coal contours obtained within a single monitoring cycle. The morphological stability range includes a first preset morphological stability range and a second preset morphological stability range. If the coal conveying morphological stability is within the first preset morphological stability range, the analysis target is the highest point of the contour. If the coal conveying morphological stability is within the second preset morphological stability range, the analysis target is the coal contour of each single-frame coal conveying image. The first preset morphological stability range is (0, X], and the values ​​within the second preset morphological stability range are all greater than X, and X=C2C is 25% of the conveyor belt width.

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

[0063] The selection of the coal quantity determination method is related to the reference height state of the coal profile.

[0064] Specifically, the coal material profile reference height is the shortest distance from the highest point of the contour line on the coal material profile to the reference horizontal plane. The reference horizontal plane is a horizontal plane at any height between the conveyor belt and the horizontal ground and parallel to the ground. The coal material profile reference height state is the first coal material profile reference height state and the second coal material profile reference height state. The coal material profile reference height state is in the first coal material profile reference height state. The coal material quantity determination method selects the first coal quantity determination method that determines the coal quantity reference value based on the coal material area. The coal material profile reference height state is in the second coal material profile reference height state. The coal material reference height in the first coal material profile reference height state is greater than or equal to 0 and less than 40, and the coal material reference height in the second coal material profile reference height state is greater than or equal to 40, unit: cm.

[0065] Specifically, the image analysis unit determines a height approach subregion and an edge subregion according to the heights of each reference point of the coal profile under the first image analysis condition, and determines a coal quantity reference value according to the area of ​​the height approach subregion and the area of ​​the edge subregion, wherein the coal quantity reference value is positively correlated with the area of ​​the height approach subregion, and the coal quantity reference value is positively correlated with the area of ​​the edge subregion;

[0066] Among them, the influence parameter of the area of ​​the highly approaching 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-region includes a height approach sub-region and an edge sub-region. The method for determining the height approach sub-region is to select two points where the upper contour line intersects the lower contour line as edge reference points, and record the point on the upper contour line that is closest to the midpoint of the line connecting the two edge reference points as the starting point. Taking the starting point as the origin, search for points on the upper contour line 2 cm 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 5 cm, then increase the search distance to search for points on the upper contour line 4 cm away from the starting point. The increase in the single search distance is 2 cm. 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 5 cm, then determine that the two points obtained in the most recent search are the dividing points, record the largest rectangular area in the coal material contour between the dividing points as the height approach sub-region, and record the area in the coal material contour except the height approach sub-region as the edge sub-region.

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

[0069] Specifically, the coal transport volume in a cycle is the sum of the coal volume reference values ​​corresponding to each single-frame 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, its coal transportation uniformity is the value obtained by subtracting the average coal transportation volume from the periodic coal transportation volume corresponding to the conveyor belt. The average coal transportation volume is the average of the sum of the periodic coal transportation volumes corresponding to each conveyor belt.

[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 calculation formula for the reference value of coal quantity is:

[0073] M=X1α1-X2α2

[0074] Among them, X1 is the first coal material profile reference height state, X2 is the second coal material profile reference height state, α1 is the height approach sub-region area, α2 is the edge sub-region area, and α1>α2.

[0075] The coal loading capacity is the amount of coal loaded at the loading end of the conveyor belt per unit time, and the transport rate is the moving speed of the conveyor belt.

[0076] Thus far, the technical solutions of the present invention have been described in conjunction with 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 may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

[0077] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A power plant operation management system, characterized in that: include: A data acquisition unit, used to collect demand information; a data analysis unit connected to the data acquisition unit, configured to determine an instability analysis method according to the combustion temperature stability, and to determine an image acquisition speed according to an instability reference value and a transport speed of the conveyor belt; an image analysis unit connected to the data acquisition unit and the data analysis unit, for determining an analysis target based on the stability of the coal conveying shape, and determining a coal quantity determination method based on a reference height state of the coal contour when the analysis target is the coal contour of each single-frame coal conveying image; a compensation adjustment unit connected to the image analysis unit, for determining the periodic coal transport volume of a conveyor belt based on the reference value of the coal volume corresponding to each single-frame coal transport image of a single conveyor belt, and determining the coal transport uniformity based on the periodic coal transport volume of each conveyor belt and selecting a transportation processing mode; Required information includes combustion temperature stability, CO2 reference value in exhaust gas emissions, and coal profile; The analysis target is the highest point of the coal material profile of a single coal conveyor or the coal material profile of a single frame coal conveyor image; Among them, different coal quantity determination methods determine different coal quantity reference values.

2. The power plant operation management system according to claim 1, characterized in that: The data acquisition unit detects the stability of the combustion temperature. The data analysis unit is preset with different instability analysis methods. The instability processing method includes a first instability analysis method for detecting the stability of the exhaust gas. and, a second instability analysis method for analyzing an unstable reference value; The selection of the instability treatment method is related to the preset combustion temperature stability range in which the combustion temperature stability lies.

3. The power plant operation management system according to claim 2, characterized in that: The data acquisition unit detects a carbon dioxide reference value in exhaust gas emissions, and when the carbon dioxide reference value is within a preset carbon dioxide reference value range, the data analysis unit analyzes an unstable reference value.

4. The power plant operation management system according to claim 3, characterized in that: The data analysis unit detects the unstable reference value and determines an image acquisition speed according to the unstable reference value, wherein the image acquisition speed is positively correlated with the unstable reference value; 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.

5. The power plant operation management system according to claim 4, characterized in that: The data analysis unit performs secondary adjustment on the image acquisition speed according to the transport speed of the conveyor belt; The transport speed of the conveyor belt is positively correlated with the image acquisition speed.

6. The power plant operation management system according to claim 5, characterized in that: The image analysis unit determines an analysis target according to the stability of the coal conveying shape, wherein 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 morphological stability range of the coal conveying morphological stability, and the coal conveying morphological stability is related to the similarity of the coal conveying images.

7. The power plant operation management system according to claim 6, characterized in that: The image analysis unit detects a reference height of a coal profile in a single-frame coal conveying image and determines a coal quantity determination method based on the reference height of the coal profile. The coal quantity determination method includes a first coal quantity determination method that determines a coal quantity reference value based on the coal area, and a second coal quantity determination method that divides the coal profile and determines the coal quantity reference value based on the coal area of ​​each sub-region. The selection of the coal quantity determination method is related to the reference height state of the coal profile.

8. The power plant operation management system according to claim 7, characterized in that: The image analysis unit determines a height approach subregion and an edge subregion based on the heights of each reference point of the coal profile under the first image analysis condition, and determines a coal quantity reference value based on the area of ​​the height approach subregion and the area of ​​the edge subregion, wherein the coal quantity reference value is positively correlated with the area of ​​the height approach subregion, and the coal quantity reference value is positively correlated with the area of ​​the edge subregion; Among them, the influence parameter of the area of ​​the highly approaching 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.

9. The power plant operation management system according to claim 8, characterized in that: The compensation and adjustment unit determines the periodic coal transport volume of the conveyor belt based on the reference value of the coal volume corresponding to each single-frame coal transportation image of a 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 transportation processing method based on the coal transport uniformity. The coal transportation processing method includes increasing or decreasing the coal loading volume and the transportation rate, and 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.

10. The power plant operation management system according to claim 9, 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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