A dual-zone raw coal bin control method and system

Abstract

The application discloses a kind of double-partition raw coal bunker control method and system, it is related to warehouse coal control technical field.Based on the future power generation planning of generator unit, corresponding coal formula group is determined in the preset coal formula corresponding table, based on the coal requirement of different time nodes of boiler, the different partition of raw coal bunker is constructed to original coal supply rate strategy, the coal supply rate of different partition in first coal supply rate strategy is adjusted multiple times, and virtual coal supply rate strategy is generated for each adjustment.Raw coal bunker different partition applied coal formula is configured with economic evaluation weight and efficiency evaluation weight, and based on economic evaluation weight and efficiency evaluation weight, the comprehensive value evaluation of original coal supply rate strategy and several virtual coal supply rate strategies is carried out, to obtain respective comprehensive evaluation value and carry out size comparison, the coal supply rate strategy with the maximum comprehensive evaluation value is determined as present coal supply rate strategy.

Description

Technical Field

[0001] This invention relates to the field of coal storage control technology, and in particular to a dual-zone raw coal storage control method and system. Background Technology

[0002] In the coal industry, raw coal bunkers are one of the most important pieces of equipment for storing and transporting coal. Traditional raw coal bunkers are usually operated using mechanical control methods, but their low efficiency, slow response speed, and high economic costs limit their application and development.

[0003] Therefore, developing a dual-zone raw coal bunker intelligent control method to achieve high efficiency, high economy, precision and energy saving in coal storage and transportation is of great significance to the development of coal control technology. Summary of the Invention

[0004] This invention provides a dual-zone raw coal bunker control method and system, which can effectively improve the economy and efficiency of coal transportation in raw coal bunkers.

[0005] The technical solution adopted in this invention is: a dual-zone raw coal bunker control method, comprising: determining the corresponding coal formula group in a preset coal formula correspondence table based on the future power generation plan of the generator set, and configuring the coal filling of the dual zones of the raw coal bunker based on the coal formula group;

[0006] Based on the coal requirements of the boiler at different time points, a raw coal supply rate strategy is constructed for different zones of the raw coal bunker.

[0007] The coal supply rate for different zones in the first coal supply rate strategy is adjusted multiple times, and a virtual coal supply rate strategy is generated for each adjustment.

[0008] The economic evaluation weights and efficiency evaluation weights of the coal formula configuration applied to different zones of the raw coal bunker are used. Based on the economic evaluation weights and efficiency evaluation weights, a comprehensive value evaluation is conducted on the original coal supply rate strategy and several virtual coal supply rate strategies to obtain their respective comprehensive evaluation values.

[0009] The comprehensive evaluation values ​​of the original coal supply rate strategy and the virtual coal supply rate strategy are compared, and the coal supply rate strategy with the largest comprehensive evaluation value is determined as the current coal supply rate strategy.

[0010] The coal supply strategy is driven by the dual-zone system of the raw coal bunker based on the current coal supply rate.

[0011] In some embodiments of this application, the method for determining the corresponding coal formula group from a preset coal formula correspondence table based on the future power generation plan of the generator set includes:

[0012] The first step is to construct a coal formula correspondence table, which includes several coal formula groups, each of which corresponds to a preset power generation planning interval.

[0013] The second step is to substitute the future power generation plan determined by the generator set into the corresponding coal formula table for comparison and analysis, and determine the corresponding coal formula group according to the preset power generation planning interval to which the future power generation plan belongs.

[0014] In some embodiments of this application, the preset power generation interval planning includes: power generation requirements for different time periods and power generation rate requirements for different time periods.

[0015] In some embodiments of this application, the method for constructing raw coal supply rate strategies for different zones of the raw coal bunker based on the coal requirements of the boiler at different time points includes:

[0016] A scanning analysis of future power generation plans is conducted to determine the time points at which changes in coal requirements occur, and these time points are marked as marker time points. Based on the coal requirements corresponding to the marker time points and the efficiency performance of the coal formulas corresponding to different zones of the raw coal bunker, the initial coal supply rate of different zones of the raw coal bunker is set, thereby forming the original coal supply rate strategy.

[0017] In some embodiments of this application, the method of adjusting the coal supply rate of different zones multiple times in the first coal supply rate strategy and generating a virtual coal supply rate strategy for each adjustment includes:

[0018] Determine the range of coal supply rates for different zones of the raw coal bunker in the original coal supply rate strategy, divide the range into multiple sub-ranges, adjust the multiple sub-ranges, and determine the average coal supply rate for each sub-range.

[0019] Multiple virtual coal supply rate strategies are generated based on the average coal supply rate of multiple sub-intervals.

[0020] In some embodiments of this application, the methods for applying economic evaluation weights and efficiency evaluation weights for different zones of the raw coal bunker include:

[0021] When assigning economic evaluation weights to coal formulations, the proportions of each component in the coal formulation are analyzed, and the cost per unit supply of the coal formulation is calculated by combining the cost of each component. Economic evaluation weights are then assigned based on the cost per unit supply of the coal formulation.

[0022] When evaluating the efficiency of coal formulation, we analyze the power generation per unit supply of coal and allocate efficiency evaluation weights based on the power generation per unit supply of coal.

[0023] In some embodiments of this application, the expression for calculating the economic evaluation weights is as follows:

[0024] J=k1×b1%+k2×b2%+k3×b3%+…+k n ×b n %;

[0025] Where J is the economic evaluation weight corresponding to the coal formula, k1 is the first economic conversion coefficient, k2 is the second economic conversion coefficient, k3 is the third economic conversion coefficient, and k n Let b be the nth economic conversion factor, b1% be the proportion of the first component of the coal formulation, b2% be the proportion of the second component of the coal formulation, b3% be the proportion of the third component of the coal formulation, and b... n % represents the proportion of the nth component in the coal formulation.

[0026] In some embodiments of this application, the expression for calculating the efficiency evaluation weights is as follows:

[0027] L = M × a;

[0028] Where L is the efficiency evaluation weight corresponding to the coal formula, M is the efficiency conversion coefficient, and a is the power generation corresponding to the unit supply of the coal formula.

[0029] In some embodiments of this application, a method for comprehensively evaluating the original coal supply rate strategy and the virtual coal supply rate strategy includes:

[0030] The original coal supply rate strategy and the virtual coal supply rate strategy are analyzed to determine the coal supply rate of different zones in different coal supply strategies. The product of the coal supply rate of different zones and the economic evaluation weight of the coal formula configuration applied in the zone is calculated to obtain the initial economic evaluation value. The product of the coal supply rate of different zones and the efficiency evaluation weight of the coal formula configuration applied in the zone is calculated to obtain the initial efficiency evaluation value.

[0031] Based on the initial economic evaluation value and initial efficiency evaluation value of the same coal supply strategy, the comprehensive evaluation value of the same coal supply strategy is determined.

[0032] In some embodiments of this application, a dual-zone raw coal bunker control system is also disclosed, comprising:

[0033] The coal formula group determination module is used to determine the corresponding coal formula group from the preset coal formula correspondence table based on the future power generation plan of the generator set, and to configure the coal filling of the two zones of the raw coal bunker based on the coal formula group.

[0034] The coal supply rate strategy generation module is used to construct the original coal supply rate strategy for different zones of the raw coal bunker based on the coal requirements of the boiler at different time nodes. The module makes multiple adjustments to the coal supply rate of different zones in the first coal supply rate strategy and generates a virtual coal supply rate strategy for each adjustment.

[0035] The strategy evaluation module is used to assign economic and efficiency evaluation weights to the coal formulas applied in different zones of the raw coal bunker. Based on the economic and efficiency evaluation weights, it performs a comprehensive value evaluation on the original coal supply rate strategy and several virtual coal supply rate strategies, obtaining their respective comprehensive evaluation values. The comprehensive evaluation values ​​of the original coal supply rate strategy and the virtual coal supply rate strategies are compared, and the coal supply rate strategy with the highest comprehensive evaluation value is determined as the current coal supply rate strategy.

[0036] The drive module is used to drive the dual zones of the raw coal bunker to supply coal based on the current coal supply rate strategy.

[0037] The beneficial effects of this invention are:

[0038] 1. Configure economic evaluation weights and efficiency evaluation weights, and provide calculation formulas for economic evaluation weights and efficiency evaluation weights. Through their evaluation standards, the economy and efficiency of raw coal storage and transportation can be effectively improved.

[0039] 2. By determining the comprehensive evaluation value of the coal supply strategy, selecting and applying the coal supply rate strategy with the largest comprehensive evaluation value, the coal supply efficiency of the dual-zone raw coal bunker is greatly improved.

[0040] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0041] Figure 1 This is a schematic diagram illustrating the steps of a dual-zone raw coal bunker control method in an embodiment of this application;

[0042] Figure 2 This is a schematic diagram of the module connection of a dual-zone raw coal bunker control system in an embodiment of this application. Detailed Implementation

[0043] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0044] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments based on the following content of the present invention. In this invention, unless otherwise expressly specified and limited, the technical terms used in this application should have the ordinary meaning understood by those skilled in the art.

[0045] Example:

[0046] The purpose of this invention is to provide a dual-zone raw coal bunker control method and system.

[0047] This application discloses a dual-zone raw coal bunker control method in its embodiments. (See attached document.) Figure 1 ,include:

[0048] S1: Based on the future power generation plan of the generator set, the corresponding coal formula group is determined in the preset coal formula correspondence table, and the coal filling of the two zones of the raw coal bunker is configured based on the coal formula group.

[0049] It is important to understand that the pre-set coal formula correspondence table refers to the coal blending scheme that is pre-determined during the power generation process based on different load conditions and coal quality requirements.

[0050] S2: Based on the coal requirements of the boiler at different time points, construct the original coal supply rate strategy for different zones of the raw coal bunker.

[0051] It is important to understand that the original coal supply rate strategy refers to the formulation of a reasonable coal supply plan and supply speed during the power generation process based on the current load and coal inventory to ensure the stable and economical operation of the power system. The coal supply rate strategy includes the arrangement of coal supply rates in different zones, such as different coal supply rates in different zones at different time points.

[0052] For example, if there are two zones, A and B, and the coal supply rate of zone A is set to 1v at time node 01 and 2v at time node 02, the overall coal supply rate setting strategy for zones A and B is called the original coal supply rate strategy.

[0053] S3: Adjust the coal supply rate of different zones multiple times in the first coal supply rate strategy, and generate a virtual coal supply rate strategy for each adjustment.

[0054] It is important to understand that the virtual coal supply rate strategy adjusts the coal supply rate set by the original coal supply rate strategy up and down within the divided sub-intervals.

[0055] For example, if the range of coal supply rate of 1V is selected as 0.8V-1.2V, it can be divided into four sub-ranges: 0.8V-0.9V, 0.9V-1.0V, 1.0V-1.1V, and 1.1V-1.2V. By adjusting the average coal supply rate of the four sub-ranges, the selectable virtual coal supply rates are 0.85V, 0.95V, 1.05V, and 1.15V.

[0056] S4: Evaluate the economic and efficiency weights of the coal formula configuration applied to different zones of the raw coal bunker, and conduct a comprehensive value evaluation of the original coal supply rate strategy and several virtual coal supply rate strategies based on the economic and efficiency weights to obtain their respective comprehensive evaluation values.

[0057] It is important to understand that the economic evaluation weight refers to the weight used when comprehensively evaluating economic performance indicators such as thermal efficiency and cost based on different load conditions and coal quality requirements, while the efficiency evaluation weight refers to the weight used when comprehensively evaluating efficiency performance indicators such as thermal efficiency and cost based on different load conditions and coal quality requirements.

[0058] S5: Compare the comprehensive evaluation values ​​of the original coal supply rate strategy and the virtual coal supply rate strategy, and determine the coal supply rate strategy with the largest comprehensive evaluation value as the current coal supply rate strategy.

[0059] S6: Based on the current coal supply rate strategy, the raw coal bunker is driven to supply coal in two zones.

[0060] The method for supplying coal to the two zones of the raw coal bunker based on the current coal supply rate strategy is as follows: determine the coal supply rate of each zone according to the current coal supply rate strategy, and control the two zones of the raw coal bunker to supply coal according to the set coal supply rate.

[0061] In some embodiments of this application, the method for determining the corresponding coal formula group from a preset coal formula correspondence table based on the future power generation plan of the generator set includes:

[0062] The first step is to construct a coal formula correspondence table, which includes several coal formula groups, each of which corresponds to a preset power generation planning interval.

[0063] The second step is to substitute the future power generation plan determined by the generator set into the corresponding coal formula table for comparison and analysis, and determine the corresponding coal formula group according to the preset power generation planning interval to which the future power generation plan belongs.

[0064] In some embodiments of this application, the preset power generation interval planning includes: power generation requirements for different time periods and power generation rate requirements for different time periods.

[0065] In some embodiments of this application, the method for constructing raw coal supply rate strategies for different zones of the raw coal bunker based on the coal requirements of the boiler at different time points includes:

[0066] A scanning analysis of future power generation plans is conducted to determine the time points at which changes in coal-fired power requirements occur, and these determined time points are marked as marker time points.

[0067] Based on the coal requirements corresponding to the marked time nodes and the efficiency performance of the coal formula corresponding to different zones of the raw coal bunker, the initial coal supply rate of different zones of the raw coal bunker is set, thereby forming the original coal supply rate strategy.

[0068] In some embodiments of this application, the method of adjusting the coal supply rate of different zones multiple times in the first coal supply rate strategy and generating a virtual coal supply rate strategy for each adjustment includes:

[0069] Determine the range of coal supply rates for different zones of the raw coal bunker in the original coal supply rate strategy, divide this range into multiple sub-ranges, adjust the multiple sub-ranges, and determine the average coal supply rate for each sub-range.

[0070] Multiple virtual coal supply rate strategies are generated based on the average coal supply rate of multiple sub-intervals.

[0071] In some embodiments of this application, the methods for applying economic evaluation weights and efficiency evaluation weights for different zones of the raw coal bunker include:

[0072] When evaluating the economic efficiency of coal formulation, the proportions of each component in the coal formulation are analyzed, and the cost per unit supply of the coal formulation is calculated based on the cost of each component. The economic efficiency evaluation weights are then assigned based on the cost per unit supply of the coal formulation.

[0073] When evaluating the efficiency of coal formulation, we analyze the power generation per unit supply of coal and allocate efficiency evaluation weights based on the power generation per unit supply of coal.

[0074] In some embodiments of this application, the expression for calculating the economic evaluation weights is as follows:

[0075] J=k1×b1%+k2×b2%+k3×b3%+…+k n ×b n %.

[0076] Where J is the economic evaluation weight corresponding to the coal formula, k1 is the first economic conversion coefficient, k2 is the second economic conversion coefficient, k3 is the third economic conversion coefficient, and k nLet b be the nth economic conversion factor, b1% be the proportion of the first component of the coal formulation, b2% be the proportion of the second component of the coal formulation, b3% be the proportion of the third component of the coal formulation, and b... n % represents the proportion of the nth component in the coal formulation.

[0077] In some embodiments of this application, the expression for calculating the efficiency evaluation weights is as follows:

[0078] L = M × a.

[0079] Where L is the efficiency evaluation weight corresponding to the coal formula, M is the efficiency conversion coefficient, and a is the power generation corresponding to the unit supply of the coal formula.

[0080] In some embodiments of this application, a method for comprehensively evaluating the original coal supply rate strategy and the virtual coal supply rate strategy includes:

[0081] The original coal supply rate strategy and the virtual coal supply rate strategy were analyzed, and the coal supply rate of different zones in different coal supply strategies was determined.

[0082] The initial economic evaluation value is obtained by multiplying the coal supply rate of different zones with the economic evaluation weight of the coal formula configuration applied in the zones. The initial efficiency evaluation value is obtained by multiplying the coal supply rate of different zones with the efficiency evaluation weight of the coal formula configuration applied in the zones.

[0083] Based on the initial economic evaluation value and initial efficiency evaluation value of the same coal supply strategy, the comprehensive evaluation value of the same coal supply strategy is determined.

[0084] In some embodiments of this application, the method for determining the coal supply rate strategy with the highest comprehensive evaluation value as the current coal supply rate strategy includes:

[0085] The comprehensive evaluation values ​​of all obtained virtual coal supply rate strategies are compared to determine the virtual coal supply rate strategy with the highest comprehensive evaluation value.

[0086] The comprehensive evaluation value of the virtual coal supply rate strategy with the largest comprehensive evaluation value is compared with the comprehensive evaluation value of the original coal supply rate strategy to obtain the coal supply rate strategy with the largest comprehensive evaluation value; the coal supply rate strategy with the largest comprehensive evaluation value is determined as the current coal supply rate strategy.

[0087] In some embodiments of this application, the method for driving the dual-zone coal supply of the raw coal bunker based on the current coal supply rate strategy includes:

[0088] Determine the coal supply rate for each zone based on the current coal supply rate strategy.

[0089] The two zones of the raw coal bunker are controlled to supply coal according to the set coal supply rate.

[0090] In some embodiments of this application, a dual-zone raw coal bunker control system is also disclosed, including: a coal formula group determination module, a coal supply rate strategy generation module, a strategy evaluation module, and a drive module.

[0091] The coal formula group determination module is used to determine the corresponding coal formula group in a preset coal formula correspondence table based on the future power generation plan of the generator set, and to configure the coal filling of the dual-zone raw coal bunker based on the coal formula group.

[0092] The coal supply rate strategy generation module is used to construct the original coal supply rate strategy for different zones of the raw coal bunker based on the coal combustion requirements of the boiler at different time nodes, adjust the coal supply rate of different zones in the first coal supply rate strategy multiple times, and generate a virtual coal supply rate strategy for each adjustment.

[0093] The strategy evaluation module is used to assign economic and efficiency evaluation weights to the coal formulas applied in different zones of the raw coal bunker, and to conduct a comprehensive value evaluation of the original coal supply rate strategy and several virtual coal supply rate strategies based on the economic and efficiency evaluation weights, thereby obtaining their respective comprehensive evaluation values. The comprehensive evaluation values ​​of the original coal supply rate strategy and the virtual coal supply rate strategies are compared, and the coal supply rate strategy with the largest comprehensive evaluation value is determined as the current coal supply rate strategy.

[0094] The drive module is used to drive the dual zones of the raw coal bunker to supply coal based on the current coal supply rate strategy.

[0095] The beneficial effects of this invention are:

[0096] 1. Configure economic evaluation weights and efficiency evaluation weights, and provide calculation formulas for economic evaluation weights and efficiency evaluation weights. Through their evaluation standards, the economy and efficiency of raw coal storage and transportation can be effectively improved.

[0097] 2. By determining the comprehensive evaluation value of the coal supply strategy, selecting and applying the coal supply rate strategy with the largest comprehensive evaluation value, the coal supply efficiency of the dual-zone raw coal bunker is greatly improved.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for controlling a dual-zone raw coal bunker, characterized in that, include: Based on the future power generation plan of the generator set, the corresponding coal formula group is determined in the preset coal formula correspondence table, and the coal filling of the two-zone raw coal bunker is configured based on the coal formula group. Based on the coal requirements of the boiler at different time points, a raw coal supply rate strategy is constructed for different zones of the raw coal bunker. The coal supply rate for different zones in the first coal supply rate strategy is adjusted multiple times, and a virtual coal supply rate strategy is generated for each adjustment. The economic evaluation weights and efficiency evaluation weights of the coal formula configuration applied to different zones of the raw coal bunker are used. Based on the economic evaluation weights and efficiency evaluation weights, a comprehensive value evaluation is conducted on the original coal supply rate strategy and several virtual coal supply rate strategies to obtain their respective comprehensive evaluation values. The comprehensive evaluation values ​​of the original coal supply rate strategy and the virtual coal supply rate strategy are compared, and the coal supply rate strategy with the largest comprehensive evaluation value is determined as the current coal supply rate strategy. The raw coal bunker is supplied to two zones based on the current coal supply rate strategy. The method for adjusting the coal supply rate of different zones multiple times in the first coal supply rate strategy, and generating a virtual coal supply rate strategy for each adjustment, includes: Determine the range of coal supply rates for different zones of the raw coal bunker in the original coal supply rate strategy, divide the range into multiple sub-ranges, adjust the multiple sub-ranges, and determine the average coal supply rate for each sub-range. Multiple virtual coal supply rate strategies are generated based on the average coal supply rate of multiple sub-intervals.

2. The dual-zone raw coal bunker control method according to claim 1, characterized in that, The methods for determining the corresponding coal formula group based on the future power generation plan of the generator set in the pre-set coal formula correspondence table include: The first step is to construct a coal formula correspondence table, which includes several coal formula groups, each of which corresponds to a preset power generation planning interval. The second step is to substitute the determined future power generation plan of the generator set into the corresponding coal formula table for comparison and analysis, and determine the corresponding coal formula group according to the preset power generation planning interval to which the future power generation plan belongs.

3. The dual-zone raw coal bunker control method according to claim 2, characterized in that, The preset power generation planning intervals include: power generation requirements for different time periods and power generation rate requirements for different time periods.

4. The dual-zone raw coal bunker control method according to claim 1, characterized in that, Based on the coal combustion requirements of the boiler at different time points, the methods for constructing raw coal supply rate strategies for different zones of the raw coal bunker include: A scanning analysis of future power generation plans is conducted to determine the time points when changes in coal-fired power requirements occur, and these determined time points are marked as marker time points. Based on the coal requirements corresponding to the marked time nodes and the efficiency performance of the coal formula corresponding to different zones of the raw coal bunker, the initial coal supply rate of different zones of the raw coal bunker is set, thereby forming the original coal supply rate strategy.

5. The dual-zone raw coal bunker control method according to claim 1, characterized in that, The methods for evaluating the economic efficiency and efficiency of coal formulation configurations applied to different zones of the raw coal bunker include: When assigning economic evaluation weights to coal formulations, the proportions of each component in the coal formulation are analyzed, and the cost per unit supply of the coal formulation is calculated by combining the cost of each component. Economic evaluation weights are then assigned based on the cost per unit supply of the coal formulation. When evaluating the efficiency of coal formulation, we analyze the power generation per unit supply of coal and allocate efficiency evaluation weights based on the power generation per unit supply of coal.

6. The dual-zone raw coal bunker control method according to claim 5, characterized in that, The expression for calculating the weights of the economic evaluation is as follows: Where J represents the economic evaluation weight corresponding to the coal formula. This is the first economic conversion factor. This is the second economic conversion factor. This is the third economic conversion factor. The nth economic conversion factor. The first component proportion of the coal formulation, This is the second component proportion in the coal-fired power formulation. This is the third component proportion in the coal-fired power formulation. The proportion of the nth component in the coal formulation.

7. The dual-zone raw coal bunker control method according to claim 5, characterized in that, The expression for calculating the efficiency evaluation weights is: L=M a; Where L is the efficiency evaluation weight corresponding to the coal formula, M is the efficiency conversion coefficient, and a is the power generation corresponding to the unit supply of the coal formula.

8. The dual-zone raw coal bunker control method according to claim 1, characterized in that, Methods for comprehensively evaluating the original coal supply rate strategy and the virtual coal supply rate strategy include: The original coal supply rate strategy and the virtual coal supply rate strategy were analyzed, and the coal supply rate of different zones in different coal supply strategies was determined respectively. The initial economic evaluation value is obtained by multiplying the coal supply rate of different zones with the economic evaluation weight of the coal formula configuration applied in the zones. The initial efficiency evaluation value is obtained by multiplying the coal supply rate of different zones with the efficiency evaluation weight of the coal formula configuration applied in the zones. Based on the initial economic evaluation value and initial efficiency evaluation value of the same coal supply strategy, the comprehensive evaluation value of the same coal supply strategy is determined.

9. A dual-zone raw coal bunker control system, characterized in that, include: The coal formula group determination module is used to determine the corresponding coal formula group from the preset coal formula correspondence table based on the future power generation plan of the generator set, and to configure the coal filling of the two zones of the raw coal bunker based on the coal formula group. The coal supply rate strategy generation module is used to construct the original coal supply rate strategy for different zones of the raw coal bunker based on the coal requirements of the boiler at different time nodes. The module makes multiple adjustments to the coal supply rate of different zones in the first coal supply rate strategy and generates a virtual coal supply rate strategy for each adjustment. The strategy evaluation module is used to assign economic and efficiency evaluation weights to the coal formulas applied in different zones of the raw coal bunker. Based on the economic and efficiency evaluation weights, it performs a comprehensive value evaluation on the original coal supply rate strategy and several virtual coal supply rate strategies, obtaining their respective comprehensive evaluation values. The comprehensive evaluation values ​​of the original coal supply rate strategy and the virtual coal supply rate strategies are compared, and the coal supply rate strategy with the highest comprehensive evaluation value is determined as the current coal supply rate strategy. The drive module is used to drive the two zones of the raw coal bunker to supply coal based on the current coal supply rate strategy. The method for the coal supply rate strategy generation module to adjust the coal supply rate for different zones multiple times in the first coal supply rate strategy and generate a virtual coal supply rate strategy for each adjustment includes: Determine the range of coal supply rates for different zones of the raw coal bunker in the original coal supply rate strategy, divide the range into multiple sub-ranges, adjust the multiple sub-ranges, and determine the average coal supply rate for each sub-range. Multiple virtual coal supply rate strategies are generated based on the average coal supply rate of multiple sub-intervals.

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