Intelligent facility control method and system for refrigeration station

Abstract

The present application relates to the field of intelligent control technology for refrigeration systems, and designs a method and system for intelligent facility control of a refrigeration plant. The method includes obtaining the refrigeration demand and refrigeration demand time for the refrigeration plant, and calculating the estimated refrigeration capacity of the current refrigeration facility in the refrigeration plant at the refrigeration demand time; judging whether the estimated refrigeration capacity is greater than or equal to the refrigeration demand; if the judgment is no, generating a refrigeration demand difference according to the estimated refrigeration capacity and the refrigeration demand, and obtaining the total amount of overload refrigeration; comparing the total amount of overload refrigeration with the refrigeration demand difference, if the total amount of overload refrigeration is equal to the refrigeration demand difference, generating a first refrigeration instruction according to the total amount of overload refrigeration and the estimated refrigeration capacity, and controlling the refrigeration of the current refrigeration facility according to the first refrigeration instruction. The present invention achieves the refrigeration demand without damaging the facility, reducing the equipment damage rate and maintenance costs.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent control of refrigeration plants, and in particular to a method and system for controlling intelligent facilities in refrigeration plants. Background Art

[0002] A refrigeration station is a room used to house refrigeration units. Refrigeration units mainly include refrigerators, air-conditioning equipment, air ducts, compressors, refrigerants and other facilities. They are widely used in industries such as industry and commercial offices.

[0003] At present, there are various control methods for various refrigeration facilities in a refrigeration station. For example, the Chinese invention patent with publication number CN117647045A disclosed a control method for a refrigeration unit and a refrigeration unit on March 5, 2024. The condenser of the refrigeration unit has multiple heat exchange areas, and a control valve that can be used to control the number and area of ​​the heat exchange areas participating in the heat exchange; the control method of the refrigeration unit includes: detecting the ambient temperature of the refrigeration unit; determining the target parameters of the heat exchange areas participating in the heat exchange according to the ambient temperature of the refrigeration unit; adjusting the switching state of the control valve so that the number of the heat exchange areas participating in the heat exchange reaches the target parameters.

[0004] Although the technical solution in the above patent document can ensure the stability of the condensing temperature of the condenser, thereby ensuring that the refrigeration unit can operate normally under different ambient temperatures, especially in ultra-low temperature environments, it still has incomplete control problems. Specifically, the above solution does not mention testing the equipment before refrigeration. For example, other control methods in the prior art test the refrigeration equipment before use. If the test is normal, the refrigeration equipment is deemed to be able to operate normally, but this method can only confirm that the current operation of the refrigeration equipment is normal, but it cannot determine whether the refrigeration facilities will be damaged when refrigerating according to the new refrigeration demand. If the refrigeration demand is too high, in order to ensure that the refrigeration demand is met, the refrigeration facilities need to be overloaded, which can easily cause damage to the refrigeration facilities in the refrigeration station, which in turn leads to the failure to meet the refrigeration demand and increases the maintenance cost of the refrigeration facilities. Summary of the invention

[0005] Based on this, it is necessary to provide a refrigeration station intelligent facility control method and system that can meet the refrigeration needs without damaging the facilities, reducing equipment damage rate and maintenance costs in response to the above technical problems.

[0006] The technical solution of the present invention is as follows:

[0007] A method for controlling intelligent facilities in a refrigeration station, the method comprising:

[0008] Obtaining the refrigeration demand and refrigeration demand time for the refrigeration plant, and calculating the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration plant at the refrigeration demand time;

[0009] Determining whether the estimated cooling capacity is greater than or equal to the cooling demand;

[0010] If the judgment is no, a cooling demand difference is generated according to the estimated cooling capacity and the cooling demand, and the total overload cooling amount is obtained, wherein the total overload cooling amount is the total cooling amount cooled by the overload cooling of the current cooling facility without damaging the function itself;

[0011] The total amount of overload refrigeration is compared with the difference in refrigeration demand. If the total amount of overload refrigeration is equal to the difference in refrigeration demand, a first refrigeration instruction is generated according to the total amount of overload refrigeration and the estimated refrigeration capacity, and the refrigeration of the current refrigeration facility is controlled according to the first refrigeration instruction according to the total amount of overload refrigeration and the estimated refrigeration capacity.

[0012] Optionally, obtain the total amount of overload cooling, including:

[0013] Obtaining the number of overload refrigeration times and a single overload refrigeration capacity according to the refrigeration demand time;

[0014] The total amount of overload refrigeration is generated according to the overload refrigeration times and the single overload refrigeration capacity.

[0015] Optionally, comparing the total amount of overload refrigeration with the refrigeration demand difference further includes:

[0016] If the total amount of overload refrigeration is greater than the difference in refrigeration demand;

[0017] A second cooling instruction is generated according to the cooling demand difference, and the cooling of the current cooling facility is controlled according to the second cooling instruction according to the overload cooling times and the cooling demand difference.

[0018] Optionally, comparing the total amount of overload refrigeration with the refrigeration demand difference further includes:

[0019] If the total amount of overload refrigeration is less than the refrigeration demand difference, obtaining a second overload difference in which the total amount of overload refrigeration is less than the refrigeration demand difference;

[0020] generating a single auxiliary cooling capacity according to the second overload difference and the overload cooling times;

[0021] A third control instruction is generated according to the single auxiliary cooling capacity, and according to the third control instruction, the refrigeration of the current refrigeration facility is controlled according to the number of overload refrigeration times and the single overload refrigeration capacity, and at the same time, the refrigeration of the auxiliary refrigeration facility is controlled according to the number of overload refrigeration times and the single auxiliary cooling capacity, wherein the auxiliary refrigeration facility is pre-set and linked with the current refrigeration facility.

[0022] Optionally, calculating the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration plant at the refrigeration demand time includes:

[0023] Obtaining historical refrigeration data of current refrigeration facilities in the refrigeration station;

[0024] generating a refrigeration impairment coefficient according to the historical refrigeration data, and generating an average refrigeration capacity of the current refrigeration facility according to the refrigeration impairment coefficient;

[0025] The estimated cooling capacity of the current cooling facility during the cooling demand time is calculated according to the average cooling capacity.

[0026] Optionally, generating a refrigeration impairment coefficient according to the historical refrigeration data, and generating an average refrigeration capacity of the current refrigeration facility according to the refrigeration impairment coefficient; comprising:

[0027] Obtaining the current service life and actual maintenance times of the current refrigeration facility according to the historical refrigeration data;

[0028] Extracting early refrigeration data from the historical refrigeration data according to a pre-stored early time period, and extracting later refrigeration data from the historical refrigeration data according to a pre-stored later time period, wherein the early refrigeration data includes the early maintenance times and the early maintenance records corresponding to each maintenance, and the later refrigeration data includes the later maintenance times and the later maintenance records corresponding to each maintenance, and the sum of the early maintenance times and the later maintenance times is the actual maintenance times;

[0029] Extracting the energy consumption ratio before the early maintenance and the energy consumption ratio after the early maintenance from the early maintenance records, and extracting the energy consumption ratio before the late maintenance and the energy consumption ratio after the late maintenance from the late maintenance records;

[0030] Generate a refrigeration depreciation factor based on the current service life, actual maintenance times, routine maintenance times, energy consumption ratio before early maintenance, energy consumption ratio after early maintenance, energy consumption ratio before late maintenance, and energy consumption ratio after late maintenance;

[0031] The pre-stored unit rated refrigeration capacity is multiplied by the refrigeration loss coefficient to generate the average refrigeration capacity of the current refrigeration facility.

[0032] Optionally, a refrigeration loss factor is generated based on the following formula:

[0033]

[0034] Among them, Tcu is the current service life, Tst is the theoretical service life of the current refrigeration facilities, is the previous period loss ratio, COP bi is the energy consumption ratio before maintenance in the i-th previous maintenance record, COP ai is the energy consumption ratio after previous maintenance in the i-th previous maintenance record, m is the number of previous maintenance times, is the late loss ratio, COP bk is the energy consumption ratio before and after maintenance in the kth maintenance record, COP ak is the energy consumption ratio after post-maintenance in the kth post-maintenance record, and n is the number of post-maintenance times.

[0035] Optionally, a refrigeration station intelligent facility control system is also provided, the system comprising:

[0036] An estimated refrigeration generation module is used to obtain the refrigeration demand and refrigeration demand time of the refrigeration plant, and calculate the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration plant at the refrigeration demand time;

[0037] A refrigeration demand judgment module, used to judge whether the estimated refrigeration capacity is greater than or equal to the refrigeration demand;

[0038] A load cooling acquisition module, for generating a cooling demand difference according to the estimated cooling capacity and the cooling demand, and acquiring the total overload cooling capacity if the judgment is no, wherein the total overload cooling capacity is the total cooling capacity of the current cooling facility under the overload cooling without damaging the function itself;

[0039] The refrigeration compliance control module is used to compare the total overload refrigeration amount with the refrigeration demand difference. If the total overload refrigeration amount is equal to the refrigeration demand difference, a first refrigeration instruction is generated according to the total overload refrigeration amount and the estimated refrigeration amount, and the refrigeration of the current refrigeration facility is controlled according to the first refrigeration instruction according to the total overload refrigeration amount and the estimated refrigeration amount.

[0040] The load cooling acquisition module is also used to: acquire the number of overload cooling times and the single overload cooling capacity according to the cooling demand time; and generate the total overload cooling capacity according to the number of overload cooling times and the single overload cooling capacity.

[0041] The overload refrigeration database pre-stores a plurality of overload refrigeration sample times, and each of the overload refrigeration sample times corresponds to an overload refrigeration sample frequency and a single refrigeration capacity of the overload sample. When the overload refrigeration sample time is the same as the refrigeration demand time, the two are matched. Alternatively, the overload refrigeration sample time that is closest to the refrigeration demand time is the matched overload refrigeration sample time. The matched overload refrigeration sample time is set as the reference overload refrigeration time, and the overload refrigeration sample frequency and the single refrigeration capacity of the overload sample corresponding to the reference overload refrigeration time are the overload refrigeration frequency and the single overload refrigeration capacity. Then, the total overload refrigeration amount can be calculated by multiplying the overload refrigeration frequency and the single overload refrigeration capacity.

[0042] The load cooling acquisition module is also used to perform the following steps:

[0043] First, the historical refrigeration data of the current refrigeration facility is obtained; then, each historical refrigeration time and the historical refrigeration data corresponding to each historical refrigeration time are extracted from the historical refrigeration data, wherein one historical refrigeration time corresponds to one historical refrigeration data, and one historical refrigeration time is the working time of the current refrigeration equipment for continuous refrigeration to complete a refrigeration demand; then, the pre-stored rated refrigeration power is extracted, and the historical refrigeration data that does not exceed the rated refrigeration power are eliminated, and the remaining historical refrigeration data are set as refrigeration sample data, and the historical refrigeration time corresponding to the refrigeration sample data is the overload refrigeration sample time; the overload refrigeration data segment greater than the rated refrigeration power is extracted from the refrigeration sample data, and the rated refrigeration power is preset for the current refrigeration equipment. At the rated refrigeration power, the refrigeration efficiency of the current refrigeration equipment is better and will not damage the current refrigeration equipment; the number of the overload refrigeration data segments is counted and recorded as the number of overload refrigeration samples; the single cooling capacity of each overload refrigeration data segment is calculated, and the average value of each single cooling capacity is calculated, and the average value is set as the single cooling capacity of the overload sample. Finally, an overload refrigeration database is generated and stored according to the number of overload refrigeration samples and the single refrigeration capacity of the overload samples corresponding to each of the overload refrigeration sample times.

[0044] The refrigeration compliance control module is also used to: if the total overload refrigeration amount is greater than the refrigeration demand difference; generate a second refrigeration instruction according to the refrigeration demand difference, and control the refrigeration of the current refrigeration facility according to the overload refrigeration times and the refrigeration demand difference according to the second refrigeration instruction.

[0045] The refrigeration compliance control module is also used for: if the total amount of overload refrigeration is less than the refrigeration demand difference, obtaining a second overload difference in which the total amount of overload refrigeration is less than the refrigeration demand difference; generating a single auxiliary refrigeration capacity according to the second overload difference and the number of overload refrigeration times; generating a third control instruction according to the single auxiliary refrigeration capacity, and controlling the refrigeration of the current refrigeration facility according to the third control instruction according to the number of overload refrigeration times and the single overload refrigeration capacity, and at the same time controlling the refrigeration of the auxiliary refrigeration facility according to the number of overload refrigeration times and the single auxiliary refrigeration capacity, wherein the auxiliary refrigeration facility is pre-set and linked with the current refrigeration facility.

[0046] The estimated refrigeration generation module is also used to: obtain historical refrigeration data of the current refrigeration facilities in the refrigeration station; generate a refrigeration loss coefficient based on the historical refrigeration data, and generate an average refrigeration capacity of the current refrigeration facility based on the refrigeration loss coefficient; calculate the estimated refrigeration capacity of the current refrigeration facility during the refrigeration demand time according to the average refrigeration capacity.

[0047] The estimated refrigeration generation module is also used to: obtain the current service life and actual maintenance times of the current refrigeration facility according to the historical refrigeration data; extract the previous refrigeration data from the historical refrigeration data according to the pre-stored previous time period, and extract the later refrigeration data from the historical refrigeration data according to the pre-stored later time period, wherein the previous refrigeration data includes the previous maintenance times and the previous maintenance records corresponding to each maintenance, and the later refrigeration data includes the later maintenance times and the later maintenance records corresponding to each maintenance, and the sum of the previous maintenance times and the later maintenance times is the actual maintenance times; extract the energy consumption ratio before the previous maintenance and the energy consumption ratio after the previous maintenance from the previous maintenance records, and extract the energy consumption ratio before the later maintenance and the energy consumption ratio after the later maintenance from the later maintenance records; generate a refrigeration impairment coefficient according to the current service life, the actual maintenance times, the routine maintenance times, the energy consumption ratio before the previous maintenance, the energy consumption ratio after the previous maintenance, the energy consumption ratio before the later maintenance, and the energy consumption ratio after the later maintenance; multiply the pre-stored unit rated refrigeration capacity by the refrigeration impairment coefficient to generate the average refrigeration capacity of the current refrigeration facility.

[0048] The estimated refrigeration generation module is further used to generate a refrigeration loss coefficient based on the following formula:

[0049]

[0050] Among them, Tcu is the current service life, Tst is the theoretical service life of the current refrigeration facilities, is the previous period loss ratio, COP bi is the energy consumption ratio before maintenance in the i-th previous maintenance record, COP aiis the energy consumption ratio after previous maintenance in the i-th previous maintenance record, m is the number of previous maintenance times, is the late loss ratio, COP bk is the energy consumption ratio before and after maintenance in the kth maintenance record, COP ak is the energy consumption ratio after post-maintenance in the kth post-maintenance record, and n is the number of post-maintenance times.

[0051] Optionally, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps described in the above-mentioned refrigeration station intelligent facility control method when executing the computer program.

[0052] Optionally, a computer-readable storage medium is also provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps described in the above-mentioned refrigeration station intelligent facility control method are implemented.

[0053] The technical effects achieved by the present invention are as follows:

[0054] The above-mentioned intelligent facility control method and system for the refrigeration station obtains the refrigeration demand and refrigeration demand time for the refrigeration station, and calculates the estimated refrigeration capacity of the current refrigeration facility in the refrigeration station at the refrigeration demand time; determines whether the estimated refrigeration capacity is greater than or equal to the refrigeration demand; if the determination is no, generates a refrigeration demand difference according to the estimated refrigeration capacity and the refrigeration demand, and obtains the total overload refrigeration amount, wherein the total overload refrigeration amount is the total refrigeration amount of the current refrigeration facility when the function itself is not damaged by overload refrigeration; compares the total overload refrigeration amount with the refrigeration demand difference, and if the total overload refrigeration amount is equal to the refrigeration demand difference, generates a first control amount according to the total overload refrigeration amount and the estimated refrigeration amount. The present invention controls the refrigeration of the current refrigeration facility according to the total overload refrigeration capacity and the estimated refrigeration capacity according to the first refrigeration instruction. In order to ensure that the current refrigeration facilities in the refrigeration station can meet the current actual needs and will not cause the current refrigeration facilities to be overloaded due to the need to meet the current actual needs, thereby causing damage to the refrigeration facilities, after obtaining the refrigeration demand and refrigeration demand time for the refrigeration station, the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration station at the refrigeration demand time is first calculated. The refrigeration demand is the refrigeration demand for the refrigeration station, and the refrigeration demand time is the refrigeration time for the refrigeration station to achieve the refrigeration demand, that is, the refrigeration demand needs to be completed within the refrigeration demand time. Next, determine whether the estimated cooling capacity is greater than or equal to the cooling demand. If the judgment is no, it means that the current refrigeration facility cannot meet the current cooling demand under normal working conditions. In order to meet the cooling demand, it is necessary to generate a cooling demand difference based on the estimated cooling capacity and the cooling demand, and obtain the total overload cooling amount, and then obtain the total overload cooling amount. The total overload cooling amount is the total cooling amount that the current refrigeration facility can cool when overloaded without damaging its function itself; then, compare the total overload cooling amount with the cooling demand difference. If the total overload cooling amount is equal to the cooling demand difference, generate a first cooling instruction based on the total overload cooling amount and the estimated cooling capacity, and control the current refrigeration facility to cool according to the first cooling instruction according to the total overload cooling amount and the estimated cooling capacity, so that the current refrigeration facility can cool to the total overload cooling amount and the estimated cooling capacity, thereby meeting the cooling demand. That is, if the total overload refrigeration amount is equal to the difference between the refrigeration demand and the cooling demand, it means that at this time, as long as the current refrigeration facility is cooled according to the normal estimated cooling capacity, and intermittently overloaded without damaging its function itself, to cool the total overload refrigeration amount, the cooling demand can be met within the refrigeration demand time, thereby achieving the refrigeration demand without damaging the facilities, thereby reducing equipment damage rate and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 A schematic diagram of a flow chart of a method for controlling intelligent facilities in a refrigeration station in one embodiment;

[0056] Figure 2 It is a structural block diagram of a refrigeration station intelligent facility control system in one embodiment. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0058] In one embodiment, a terminal is provided, which is used to: obtain a cooling demand and a cooling demand time for a refrigeration plant, and calculate an estimated cooling capacity of a current refrigeration facility in the refrigeration plant at the cooling demand time; determine whether the estimated cooling capacity is greater than or equal to the cooling demand; if not, generate a cooling demand difference based on the estimated cooling capacity and the cooling demand, and obtain an overload cooling total, wherein the overload cooling total is the total cooling capacity of the current refrigeration facility by overload refrigeration without damaging the function itself; compare the overload cooling total with the cooling demand difference, if the overload cooling total is equal to the cooling demand difference, generate a first cooling instruction based on the overload cooling total and the estimated cooling capacity, and control the cooling of the current refrigeration facility according to the overload cooling total and the estimated cooling capacity based on the first cooling instruction.

[0059] The terminal may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, and portable wearable devices.

[0060] In one embodiment, Figure 1 As shown, a method for controlling intelligent facilities in a refrigeration plant is provided, the method comprising:

[0061] Step S100: obtaining the refrigeration demand and refrigeration demand time of the refrigeration plant, and calculating the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration plant at the refrigeration demand time;

[0062] Step S200: determining whether the estimated cooling capacity is greater than or equal to the cooling demand;

[0063] Step S300: if the judgment is no, a cooling demand difference is generated according to the estimated cooling capacity and the cooling demand, and the total overload cooling amount is obtained, wherein the total overload cooling amount is the total cooling amount of the current cooling facility when the overload cooling does not damage the function itself;

[0064] In this step, if the judgment is yes, that is, it is judged that the estimated cooling capacity is greater than or equal to the cooling demand, a cooling start instruction is generated, and according to the cooling start instruction, the current refrigeration facility is controlled to perform cooling according to the estimated cooling capacity at the cooling demand time, and the cooling demand can be met at this time.

[0065] Step S400: Compare the total overload refrigeration amount with the refrigeration demand difference. If the total overload refrigeration amount is equal to the refrigeration demand difference, generate a first refrigeration instruction based on the total overload refrigeration amount and the estimated refrigeration amount, and control the refrigeration of the current refrigeration facility according to the first refrigeration instruction according to the total overload refrigeration amount and the estimated refrigeration amount.

[0066] In this embodiment, in order to ensure that the current refrigeration facilities in the refrigeration station can meet the current actual needs and will not cause the current refrigeration facilities to be overloaded due to the need to meet the current actual needs, thereby causing damage to the refrigeration facilities, after obtaining the refrigeration demand and refrigeration demand time for the refrigeration station, the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration station at the refrigeration demand time is first calculated. The refrigeration demand is the refrigeration demand for the refrigeration station, and the refrigeration demand time is the refrigeration time for the refrigeration station to achieve the refrigeration demand, that is, the refrigeration demand needs to be completed within the refrigeration demand time. Next, determine whether the estimated cooling capacity is greater than or equal to the cooling demand. If the judgment is no, it means that the current refrigeration facility cannot meet the current cooling demand under normal working conditions. In order to meet the cooling demand, it is necessary to generate a cooling demand difference based on the estimated cooling capacity and the cooling demand, and obtain the total overload cooling amount, and then obtain the total overload cooling amount. The total overload cooling amount is the total cooling amount that the current refrigeration facility can cool when overloaded without damaging its function itself; then, compare the total overload cooling amount with the cooling demand difference. If the total overload cooling amount is equal to the cooling demand difference, generate a first cooling instruction based on the total overload cooling amount and the estimated cooling capacity, and control the current refrigeration facility to cool according to the first cooling instruction according to the total overload cooling amount and the estimated cooling capacity, so that the current refrigeration facility can cool to the total overload cooling amount and the estimated cooling capacity, thereby meeting the cooling demand. That is, if the total overload refrigeration amount is equal to the difference between the refrigeration demand and the cooling demand, it means that at this time, as long as the current refrigeration facility is cooled according to the normal estimated cooling capacity, and intermittently overloaded without damaging its function itself, to cool the total overload refrigeration amount, the cooling demand can be met within the refrigeration demand time, thereby achieving the refrigeration demand without damaging the facilities, thereby reducing equipment damage rate and maintenance costs.

[0067] In this embodiment, the current refrigeration facilities include but are not limited to the compressor, chilled water pump and cooling water pump in the refrigeration unit.

[0068] In one embodiment, in step S300, obtaining the total amount of overload refrigeration includes:

[0069] Step S310: obtaining the number of overload refrigeration times and the single overload refrigeration capacity according to the refrigeration demand time;

[0070] Step S320: generating a total overload cooling amount according to the overload cooling times and the single overload cooling amount.

[0071] In this embodiment, first, based on the cooling demand time, an overload cooling sample time matching the cooling demand time is selected from a pre-stored overload cooling database.

[0072] The overload refrigeration database pre-stores a plurality of overload refrigeration sample times, and each of the overload refrigeration sample times corresponds to an overload refrigeration sample number and a single refrigeration capacity of the overload sample.

[0073] When the overload cooling sample time is the same as the cooling demand time, the two are matched. Alternatively, the overload cooling sample time closest to the cooling demand time is the matched overload cooling sample time. The matched overload cooling sample time is set as the reference overload cooling time, and the overload cooling sample number and the overload sample single cooling capacity corresponding to the reference overload cooling time are the overload cooling number and the single overload cooling capacity.

[0074] Next, the total amount of overload refrigeration can be calculated by multiplying the number of overload refrigeration times and the single overload refrigeration capacity.

[0075] Specifically, the steps of generating and storing the overload refrigeration database include:

[0076] First, historical refrigeration data of the current refrigeration facility is obtained;

[0077] Then, each historical refrigeration time and the historical refrigeration data corresponding to each historical refrigeration time are extracted from the historical refrigeration data, wherein one historical refrigeration time corresponds to one historical refrigeration data, and one historical refrigeration time is the continuous refrigeration working time of the current refrigeration equipment to complete one refrigeration demand;

[0078] Next, the pre-stored rated cooling power is extracted, and the historical cooling data that does not exceed the rated cooling power is eliminated, and the remaining historical cooling data is set as cooling sample data, and the historical cooling time corresponding to the cooling sample data is the overload cooling sample time;

[0079] Extracting an overload refrigeration data segment greater than the rated refrigeration power from the refrigeration sample data, wherein the rated refrigeration power is preset for the current refrigeration device, and at the rated refrigeration power, the refrigeration efficiency of the current refrigeration device is better and will not cause damage to the current refrigeration device;

[0080] Counting the number of the overload cooling data segments and recording it as the overload cooling sample times;

[0081] The single cooling capacity of each of the overload cooling data segments is calculated, and the average value of each of the single cooling capacities is calculated, and the average value is set as the single cooling capacity of the overload sample.

[0082] Finally, an overload refrigeration database is generated and stored according to the number of overload refrigeration samples and the single refrigeration capacity of the overload samples corresponding to each of the overload refrigeration sample times.

[0083] Specifically, each of the historical refrigeration data is refrigeration working data of the current refrigeration facility when it is not damaged. That is, when the current refrigeration facility occasionally does not perform refrigeration according to the rated refrigeration power, it still will not damage the equipment.

[0084] By extracting the overload cooling data segments and counting the number, the number of times the current refrigeration facility will not be damaged after overload cooling during the overload cooling sample time and the cooling capacity that can be overloaded during the overload cooling sample time can be known. Specifically, the number of overload cooling data segments is counted and recorded as the overload cooling sample times; then the single cooling capacity of each overload cooling data segment is calculated, and the average value of each single cooling capacity is calculated, and the average value is set as the overload sample single cooling capacity.

[0085] In fact, short-term, intermittent overload operation is a state in which the equipment can work without causing damage to the equipment. Therefore, by using historical refrigeration data to extract the number of times and cooling capacity, the refrigeration equipment can be controlled to meet specific refrigeration needs. This setting does not require long-term overload operation, and is more conducive to ensuring the sustainable use of refrigeration facilities and reducing damage rates.

[0086] In one embodiment, in step S400, comparing the total amount of overload refrigeration with the refrigeration demand difference further includes:

[0087] Step S411: if the total amount of overload refrigeration is greater than the refrigeration demand difference;

[0088] Step S412: generating a second cooling instruction according to the cooling demand difference, and controlling the cooling of the current cooling facility according to the second cooling instruction according to the number of overload cooling times and the cooling demand difference.

[0089] In this embodiment, after comparing the total amount of overload refrigeration with the difference in refrigeration demand, if the total amount of overload refrigeration is greater than the difference in refrigeration demand, it means that the difference in refrigeration demand can be made up according to the intermittent overload refrigeration mode. Therefore, in order to achieve accurate refrigeration and not exceed the refrigeration demand, energy saving is achieved by generating a second refrigeration instruction according to the refrigeration demand difference, and controlling the refrigeration of the current refrigeration facility according to the second refrigeration instruction according to the number of overload refrigeration and the difference in refrigeration demand, that is, controlling the current refrigeration facility according to the second refrigeration instruction to perform refrigeration according to the estimated refrigeration capacity while intermittently performing overload refrigeration according to the difference in refrigeration demand, thereby making up the difference in refrigeration demand, thereby ensuring that the refrigeration demand is met. If refrigeration is controlled according to the total amount of overload refrigeration, the equipment can be kept from being damaged. In this embodiment, control is performed according to a total amount lower than the overload refrigeration amount, thereby minimizing the probability of damage to the refrigeration facility.

[0090] In one embodiment, in step S400, comparing the total amount of overload refrigeration with the refrigeration demand difference further includes:

[0091] Step S421: if the total amount of overload refrigeration is less than the refrigeration demand difference, obtaining a second overload difference in which the total amount of overload refrigeration is less than the refrigeration demand difference;

[0092] Step S422: generating a single auxiliary cooling capacity according to the second overload difference and the overload cooling times;

[0093] Step S423: Generate a third control instruction according to the single auxiliary cooling capacity, and control the refrigeration of the current refrigeration facility according to the third control instruction according to the overload refrigeration times and the single overload refrigeration capacity, and at the same time control the refrigeration of the auxiliary refrigeration facility according to the overload refrigeration times and the single auxiliary cooling capacity, wherein the auxiliary refrigeration facility is pre-set and linked with the current refrigeration facility.

[0094] In this embodiment, after comparing the total amount of overload refrigeration with the refrigeration demand difference, if the total amount of overload refrigeration is less than the refrigeration demand difference, it means that at this time, controlling the intermittent overload operation of the current refrigeration facility cannot meet the refrigeration demand, so it is necessary to deploy auxiliary refrigeration facilities to perform auxiliary refrigeration, specifically, first obtaining a second overload difference in which the total amount of overload refrigeration is less than the refrigeration demand difference, and then generating a single auxiliary refrigeration capacity according to the second overload difference and the number of overload refrigeration times, the single auxiliary refrigeration capacity being the amount of single refrigeration when the auxiliary refrigeration facility performs refrigeration according to the number of overload refrigeration times, so as to ensure uniform refrigeration in batches and balanced refrigeration, specifically, generating a third control instruction through the single auxiliary refrigeration capacity, and controlling the refrigeration of the current refrigeration facility according to the third control instruction according to the number of overload refrigeration times and the single overload refrigeration capacity, and at the same time controlling the refrigeration of the auxiliary refrigeration facility according to the number of overload refrigeration times and the single auxiliary refrigeration capacity, wherein the auxiliary refrigeration facility is pre-set and linked with the current refrigeration facility. The auxiliary refrigeration facility includes a pre-set standby refrigeration facility, a refrigeration facility in another area that is pre-associated with the current refrigeration facility, or other refrigeration facilities that can assist the current refrigeration facility.

[0095] In one embodiment, in step S100, calculating the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration plant at the refrigeration demand time includes:

[0096] Step S110: Acquire historical refrigeration data of the current refrigeration facilities in the refrigeration plant;

[0097] Step S120: generating a refrigeration loss coefficient according to the historical refrigeration data, and generating an average refrigeration capacity of the current refrigeration facility according to the refrigeration loss coefficient;

[0098] Step S130: Calculate the estimated cooling capacity of the current cooling facility during cooling demand time according to the average cooling capacity.

[0099] In this embodiment, historical refrigeration data of the current refrigeration facility in the refrigeration station is obtained, and a refrigeration impairment coefficient is generated based on the historical refrigeration data. The refrigeration impairment coefficient is generated based on the usage of the current refrigeration facility, and represents the degree of impairment between the actual amount of refrigeration that the current refrigeration facility can currently cool and the unit rated refrigeration capacity. After generating the refrigeration impairment coefficient, the average refrigeration capacity of the current refrigeration facility is generated based on the refrigeration impairment coefficient, so that the average refrigeration capacity can represent the actual refrigeration capacity of the current refrigeration facility, thereby enabling further subsequent evaluation, specifically, calculating the estimated refrigeration capacity of the current refrigeration facility during the refrigeration demand time according to the average refrigeration capacity.

[0100] In one embodiment, step S120: generating a refrigeration impairment coefficient according to the historical refrigeration data, and generating an average refrigeration capacity of the current refrigeration facility according to the refrigeration impairment coefficient; comprises:

[0101] Step S121: obtaining the current service life and actual maintenance times of the current refrigeration facility according to the historical refrigeration data;

[0102] Step S122: extracting early refrigeration data from the historical refrigeration data according to the pre-stored early time period, and extracting later refrigeration data from the historical refrigeration data according to the pre-stored later time period, wherein the early refrigeration data includes the early maintenance times and the early maintenance records corresponding to each maintenance, and the later refrigeration data includes the later maintenance times and the later maintenance records corresponding to each maintenance, and the sum of the early maintenance times and the later maintenance times is the actual maintenance times;

[0103] Step S123: extracting the energy consumption ratio before the early maintenance and the energy consumption ratio after the early maintenance from the early maintenance record, and extracting the energy consumption ratio before the later maintenance and the energy consumption ratio after the later maintenance from the later maintenance record;

[0104] Step S124: generating a refrigeration depreciation coefficient according to the current service life, the actual number of maintenance times, the number of routine maintenance times, the energy consumption ratio before the early maintenance, the energy consumption ratio after the early maintenance, the energy consumption ratio before the late maintenance, and the energy consumption ratio after the late maintenance;

[0105] Step S125: multiplying the pre-stored unit rated cooling capacity by the cooling loss coefficient to generate the average cooling capacity of the current cooling facility.

[0106] In this embodiment, the early time period and the late time period are both set according to the current service life. The early time period occupies two-thirds of the current service life, and the late time period occupies one-third of the current service life. For example, when the current service life is 3 years, the early time period is from the beginning of use to two years of use. The late time period is the third year of use. When it is first put into use, because the equipment is newer, the depreciation is small, and thus the impact coefficient is small. As the use time increases, the impact of the use time on the depreciation becomes greater and greater. Therefore, the data of the late time period has a greater impact on the depreciation, and thus the early depreciation ratio is smaller than the late depreciation ratio (explained later). The energy consumption ratio before maintenance will be calculated every time maintenance is performed. In this embodiment, taking the compression refrigerator as an example, the energy consumption ratio is calculated by dividing the cooling capacity by the energy consumption. That is, by comprehensively considering the current years of use, actual number of maintenance times, number of routine inspections, energy consumption ratio before previous maintenance, energy consumption ratio after previous maintenance, energy consumption ratio before later maintenance and energy consumption ratio after later maintenance, a refrigeration depreciation coefficient is generated, and the actual refrigeration level of the current refrigeration facility is represented by the refrigeration depreciation coefficient.

[0107] In one embodiment, the refrigeration loss factor is generated based on the following formula:

[0108]

[0109] Among them, Tcu is the current service life, Tst is the theoretical service life of the current refrigeration facilities, is the previous period loss ratio, COP bi is the energy consumption ratio before maintenance in the i-th previous maintenance record, COP ai is the energy consumption ratio after previous maintenance in the i-th previous maintenance record, m is the number of previous maintenance times, is the late loss ratio, COP bk is the energy consumption ratio before and after maintenance in the kth maintenance record, COP ak is the energy consumption ratio after post-maintenance in the kth post-maintenance record, and n is the number of post-maintenance times.

[0110] In this embodiment, the early depreciation ratio is less than the late depreciation ratio, and the early depreciation ratio and the late depreciation ratio are both preset. The theoretical service life is the theoretical service life of the current theoretical facility, that is, the theoretical service life.

[0111] In one embodiment, a refrigeration plant intelligent facility control system is also provided. Figure 2 Said system comprises:

[0112] An estimated refrigeration generation module is used to obtain the refrigeration demand and refrigeration demand time of the refrigeration plant, and calculate the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration plant at the refrigeration demand time;

[0113] A refrigeration demand judgment module, used to judge whether the estimated refrigeration capacity is greater than or equal to the refrigeration demand;

[0114] A load cooling acquisition module, for generating a cooling demand difference according to the estimated cooling capacity and the cooling demand, and acquiring the total overload cooling capacity if the judgment is no, wherein the total overload cooling capacity is the total cooling capacity of the current cooling facility under the overload cooling without damaging the function itself;

[0115] The refrigeration compliance control module is used to compare the total overload refrigeration amount with the refrigeration demand difference. If the total overload refrigeration amount is equal to the refrigeration demand difference, a first refrigeration instruction is generated according to the total overload refrigeration amount and the estimated refrigeration amount, and the refrigeration of the current refrigeration facility is controlled according to the first refrigeration instruction according to the total overload refrigeration amount and the estimated refrigeration amount.

[0116] In one embodiment, the load cooling acquisition module is further used to: acquire the number of overload cooling times and the single overload cooling capacity according to the cooling demand time; and generate the total overload cooling capacity according to the number of overload cooling times and the single overload cooling capacity.

[0117] The overload refrigeration database pre-stores a plurality of overload refrigeration sample times, and each of the overload refrigeration sample times corresponds to an overload refrigeration sample frequency and a single refrigeration capacity of the overload sample. When the overload refrigeration sample time is the same as the refrigeration demand time, the two are matched. Alternatively, the overload refrigeration sample time that is closest to the refrigeration demand time is the matched overload refrigeration sample time. The matched overload refrigeration sample time is set as the reference overload refrigeration time, and the overload refrigeration sample frequency and the single refrigeration capacity of the overload sample corresponding to the reference overload refrigeration time are the overload refrigeration frequency and the single overload refrigeration capacity. Then, the total overload refrigeration amount can be calculated by multiplying the overload refrigeration frequency and the single overload refrigeration capacity.

[0118] In one embodiment, the load cooling acquisition module is further used to: perform the following steps:

[0119] First, the historical refrigeration data of the current refrigeration facility is obtained; then, each historical refrigeration time and the historical refrigeration data corresponding to each historical refrigeration time are extracted from the historical refrigeration data, wherein one historical refrigeration time corresponds to one historical refrigeration data, and one historical refrigeration time is the working time of the current refrigeration equipment for continuous refrigeration to complete a refrigeration demand; then, the pre-stored rated refrigeration power is extracted, and the historical refrigeration data that does not exceed the rated refrigeration power are eliminated, and the remaining historical refrigeration data are set as refrigeration sample data, and the historical refrigeration time corresponding to the refrigeration sample data is the overload refrigeration sample time; the overload refrigeration data segment greater than the rated refrigeration power is extracted from the refrigeration sample data, and the rated refrigeration power is preset for the current refrigeration equipment. At the rated refrigeration power, the refrigeration efficiency of the current refrigeration equipment is better and will not damage the current refrigeration equipment; the number of the overload refrigeration data segments is counted and recorded as the number of overload refrigeration samples; the single cooling capacity of each overload refrigeration data segment is calculated, and the average value of each single cooling capacity is calculated, and the average value is set as the single cooling capacity of the overload sample. Finally, an overload refrigeration database is generated and stored according to the number of overload refrigeration samples and the single refrigeration capacity of the overload samples corresponding to each of the overload refrigeration sample times.

[0120] In one embodiment, the refrigeration compliance control module is also used to: if the total amount of overload refrigeration is greater than the refrigeration demand difference; generate a second refrigeration instruction according to the refrigeration demand difference, and control the refrigeration of the current refrigeration facility according to the overload refrigeration number and the refrigeration demand difference according to the second refrigeration instruction.

[0121] In one embodiment, the refrigeration compliance control module is also used for: if the total amount of overload refrigeration is less than the refrigeration demand difference, then obtaining a second overload difference in which the total amount of overload refrigeration is less than the refrigeration demand difference; generating a single auxiliary refrigeration capacity according to the second overload difference and the number of overload refrigeration times; generating a third control instruction according to the single auxiliary refrigeration capacity, and controlling the refrigeration of the current refrigeration facility according to the third control instruction according to the number of overload refrigeration times and the single overload refrigeration capacity, and at the same time controlling the refrigeration of the auxiliary refrigeration facility according to the number of overload refrigeration times and the single auxiliary refrigeration capacity, wherein the auxiliary refrigeration facility is pre-set and linked with the current refrigeration facility.

[0122] In one embodiment, the estimated refrigeration generation module is also used to: obtain historical refrigeration data of the current refrigeration facility in the refrigeration station; generate a refrigeration loss coefficient based on the historical refrigeration data, and generate an average refrigeration capacity of the current refrigeration facility based on the refrigeration loss coefficient; calculate the estimated refrigeration capacity of the current refrigeration facility during the refrigeration demand time according to the average refrigeration capacity.

[0123] In one embodiment, the estimated refrigeration generation module is further used to: obtain the current service life and actual maintenance times of the current refrigeration facility according to the historical refrigeration data; extract the previous refrigeration data from the historical refrigeration data according to the pre-stored previous time period, and extract the later refrigeration data from the historical refrigeration data according to the pre-stored later time period, wherein the previous refrigeration data includes the previous maintenance times and the previous maintenance records corresponding to each maintenance, and the later refrigeration data includes the later maintenance times and the later maintenance records corresponding to each maintenance, and the sum of the previous maintenance times and the later maintenance times is the actual maintenance times; extract the energy consumption ratio before the previous maintenance and the energy consumption ratio after the previous maintenance from the previous maintenance records, and extract the energy consumption ratio before the later maintenance and the energy consumption ratio after the later maintenance from the later maintenance records; generate a refrigeration impairment coefficient according to the current service life, the actual maintenance times, the routine maintenance times, the energy consumption ratio before the previous maintenance, the energy consumption ratio after the previous maintenance, the energy consumption ratio before the later maintenance, and the energy consumption ratio after the later maintenance; multiply the pre-stored unit rated refrigeration capacity by the refrigeration impairment coefficient to generate the average refrigeration capacity of the current refrigeration facility.

[0124] In one embodiment, the estimated refrigeration generation module is further used to generate a refrigeration loss coefficient based on the following formula:

[0125]

[0126] Among them, Tcu is the current service life, Tst is the theoretical service life of the current refrigeration facilities, is the previous period loss ratio, COP bi is the energy consumption ratio before maintenance in the i-th previous maintenance record, COP ai is the energy consumption ratio after previous maintenance in the i-th previous maintenance record, m is the number of previous maintenance times, is the late loss ratio, COP bk is the energy consumption ratio before and after maintenance in the kth maintenance record, COP ak is the energy consumption ratio after post-maintenance in the kth post-maintenance record, and n is the number of post-maintenance times.

[0127] In one embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps described in the above-mentioned refrigeration station intelligent facility control method when executing the computer program.

[0128] In one embodiment, a computer-readable storage medium is also provided, on which a computer program is stored. When the computer program is executed by a processor, the steps described in the above-mentioned refrigeration station intelligent facility control method are implemented.

[0129] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0130] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0131] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for controlling intelligent facilities in a refrigeration station, characterized in that: The method comprises: Obtaining the refrigeration demand and refrigeration demand time for the refrigeration plant, and calculating the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration plant at the refrigeration demand time; Determining whether the estimated cooling capacity is greater than or equal to the cooling demand; If the judgment is no, a cooling demand difference is generated according to the estimated cooling capacity and the cooling demand, and the total overload cooling amount is obtained, wherein the total overload cooling amount is the total cooling amount cooled by the overload cooling of the current cooling facility without damaging the function itself; Comparing the total amount of overload refrigeration with the difference in refrigeration demand, if the total amount of overload refrigeration is equal to the difference in refrigeration demand, generating a first refrigeration instruction according to the total amount of overload refrigeration and the estimated refrigeration capacity, and controlling the refrigeration of the current refrigeration facility according to the total amount of overload refrigeration and the estimated refrigeration capacity according to the first refrigeration instruction; Calculating the estimated cooling capacity of the current cooling facilities in the cooling station at the cooling demand time, including: Obtaining historical refrigeration data of current refrigeration facilities in the refrigeration station; generating a refrigeration impairment coefficient according to the historical refrigeration data, and generating an average refrigeration capacity of the current refrigeration facility according to the refrigeration impairment coefficient; Calculating the estimated cooling capacity of the current cooling facility during cooling demand time according to the average cooling capacity; Generating a refrigeration impairment coefficient according to the historical refrigeration data, and generating an average refrigeration capacity of the current refrigeration facility according to the refrigeration impairment coefficient; comprising: Obtaining the current service life and actual maintenance times of the current refrigeration facility according to the historical refrigeration data; Extracting early refrigeration data from the historical refrigeration data according to a pre-stored early time period, and extracting later refrigeration data from the historical refrigeration data according to a pre-stored later time period, wherein the early refrigeration data includes the early maintenance times and the early maintenance records corresponding to each maintenance, and the later refrigeration data includes the later maintenance times and the later maintenance records corresponding to each maintenance, and the sum of the early maintenance times and the later maintenance times is the actual maintenance times; Extracting the energy consumption ratio before the early maintenance and the energy consumption ratio after the early maintenance from the early maintenance records, and extracting the energy consumption ratio before the late maintenance and the energy consumption ratio after the late maintenance from the late maintenance records; Generate a refrigeration depreciation factor based on the current service life, actual maintenance times, routine maintenance times, energy consumption ratio before early maintenance, energy consumption ratio after early maintenance, energy consumption ratio before late maintenance, and energy consumption ratio after late maintenance; Multiplying the pre-stored unit rated refrigeration capacity by the refrigeration loss coefficient to generate the average refrigeration capacity of the current refrigeration facility; The cooling loss factor is generated based on the following formula: Among them, Tcu is the current service life, Tst is the theoretical service life of the current refrigeration facilities, is the previous period loss ratio, COP bi is the energy consumption ratio before maintenance in the i-th previous maintenance record, COP ai is the energy consumption ratio after previous maintenance in the i-th previous maintenance record, m is the number of previous maintenance times, is the late loss ratio, COP bk is the energy consumption ratio before and after maintenance in the kth maintenance record, COP ak is the energy consumption ratio after post-maintenance in the kth post-maintenance record, and n is the number of post-maintenance times.

2. The refrigeration plant intelligent facility control method according to claim 1, characterized in that: Get the total amount of overload cooling, including: Obtaining the number of overload refrigeration times and a single overload refrigeration capacity according to the refrigeration demand time; The total amount of overload refrigeration is generated according to the overload refrigeration times and the single overload refrigeration capacity.

3. The refrigeration plant intelligent facility control method according to claim 2, characterized in that: Comparing the total amount of excess refrigeration with the difference in refrigeration demand, further comprising: If the total amount of overload refrigeration is greater than the difference in refrigeration demand; A second cooling instruction is generated according to the cooling demand difference, and the cooling of the current cooling facility is controlled according to the second cooling instruction according to the overload cooling times and the cooling demand difference.

4. The intelligent facility control method for a refrigeration plant according to claim 3, characterized in that: Comparing the total amount of excess refrigeration with the difference in refrigeration demand, further comprising: If the total amount of overload refrigeration is less than the refrigeration demand difference, obtaining a second overload difference in which the total amount of overload refrigeration is less than the refrigeration demand difference; generating a single auxiliary cooling capacity according to the second overload difference and the overload cooling times; A third control instruction is generated according to the single auxiliary cooling capacity, and according to the third control instruction, the refrigeration of the current refrigeration facility is controlled according to the number of overload refrigeration times and the single overload refrigeration capacity, and at the same time, the refrigeration of the auxiliary refrigeration facility is controlled according to the number of overload refrigeration times and the single auxiliary refrigeration capacity, wherein the auxiliary refrigeration facility is pre-set and linked with the current refrigeration facility.

5. A refrigeration station intelligent facility control system, characterized in that: The system comprises: An estimated refrigeration generation module is used to obtain the refrigeration demand and refrigeration demand time of the refrigeration plant, and calculate the estimated refrigeration capacity of the current refrigeration facilities in the refrigeration plant at the refrigeration demand time; A refrigeration demand judgment module, used to judge whether the estimated refrigeration capacity is greater than or equal to the refrigeration demand; A load cooling acquisition module, for generating a cooling demand difference according to the estimated cooling capacity and the cooling demand, and acquiring the total overload cooling capacity if the judgment is no, wherein the total overload cooling capacity is the total cooling capacity of the current cooling facility under the overload cooling without damaging the function itself; a refrigeration compliance control module, configured to compare the total amount of overload refrigeration with the difference in refrigeration demand, and if the total amount of overload refrigeration is equal to the difference in refrigeration demand, generate a first refrigeration instruction according to the total amount of overload refrigeration and the estimated refrigeration capacity, and control the refrigeration of the current refrigeration facility according to the total amount of overload refrigeration and the estimated refrigeration capacity according to the first refrigeration instruction; The load cooling acquisition module is also used to: acquire the number of overload cooling times and the single overload cooling capacity according to the cooling demand time; generate the total overload cooling capacity according to the number of overload cooling times and the single overload cooling capacity; The estimated refrigeration generation module is further used to: obtain historical refrigeration data of the current refrigeration facility in the refrigeration station; generate a refrigeration loss coefficient according to the historical refrigeration data, and generate an average refrigeration capacity of the current refrigeration facility according to the refrigeration loss coefficient; calculate the estimated refrigeration capacity of the current refrigeration facility at the refrigeration demand time according to the average refrigeration capacity; The estimated refrigeration generation module is also used to: obtain the current service life and actual maintenance times of the current refrigeration facility according to the historical refrigeration data; extract the previous refrigeration data from the historical refrigeration data according to the pre-stored previous time period, and extract the later refrigeration data from the historical refrigeration data according to the pre-stored later time period, wherein the previous refrigeration data includes the previous maintenance times and the previous maintenance records corresponding to each maintenance, and the later refrigeration data includes the later maintenance times and the later maintenance records corresponding to each maintenance, and the sum of the previous maintenance times and the later maintenance times is the actual maintenance times; extract the energy consumption ratio before the previous maintenance and the energy consumption ratio after the previous maintenance from the previous maintenance records, and extract the energy consumption ratio before the later maintenance and the energy consumption ratio after the later maintenance from the later maintenance records; generate a refrigeration impairment coefficient according to the current service life, the actual maintenance times, the routine maintenance times, the energy consumption ratio before the previous maintenance, the energy consumption ratio after the previous maintenance, the energy consumption ratio before the later maintenance, and the energy consumption ratio after the later maintenance; multiply the pre-stored unit rated refrigeration capacity by the refrigeration impairment coefficient to generate the average refrigeration capacity of the current refrigeration facility; The estimated refrigeration generation module is further used to generate a refrigeration loss coefficient based on the following formula: Among them, Tcu is the current service life, Tst is the theoretical service life of the current refrigeration facilities, is the previous period loss ratio, COP bi is the energy consumption ratio before maintenance in the i-th previous maintenance record, COP ai is the energy consumption ratio after previous maintenance in the i-th previous maintenance record, m is the number of previous maintenance times, is the late loss ratio, COP bk is the energy consumption ratio before and after maintenance in the kth maintenance record, COP ak is the energy consumption ratio after post-maintenance in the kth post-maintenance record, and n is the number of post-maintenance times.

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