An operating control method, system, device and cold storage system of a cold storage system

Abstract

The present invention relates to an operation control method, system, device and cold storage system for a cold storage system. The method includes: obtaining the cold release rate, cold storage rate, cold release revenue and cold storage expenditure of the cold storage system at each moment during the operation cycle; selecting the moment with the highest cold release revenue as the cold release moment, and selecting the moment with the lowest cold storage expenditure as the cold storage moment; adjusting the cold release amount and the already released cold amount at the selected cold release moment, and adjusting the cold storage amount and the already stored cold amount at the selected cold storage moment according to the comparison result of the cold release revenue at the cold release moment and the cold storage expenditure at the cold storage moment; processing all moments in the same way; determining the operation mode at each moment according to the already released cold amount and the already stored cold amount at each moment. The technical solution provided by the present invention utilizes the characteristics of peak-valley electricity prices and energy consumption of equipment operation to output cold storage and cold release strategies, so as to achieve the purpose of reducing the operation cost of the project.

Description

Technical Field

[0001] The present invention relates to the field of cold storage control, and particularly to an operation control method, system, device and cold storage system for a cold storage system. Background Art

[0002] Currently, the cold storage system needs a supporting group control system to assist in operation, which has relatively high professional requirements for operation and maintenance personnel. Often, due to unreasonable cold storage and release operations during operation, the effect of electricity cost savings is not obvious, and even the operation and maintenance cost is higher than that of direct refrigeration by a conventional chiller. Moreover, when property management personnel manage the operation of the cold storage system, it is difficult to judge the time of cold storage and release due to the changing working conditions, and strategic guidance is needed. Summary of the Invention

[0003] To overcome the problems existing in the related art, the present invention provides an operation control method, system, device and cold storage system for a cold storage system.

[0004] According to the first aspect of the embodiments of the present invention, an operation control method for a cold storage system is provided, including:

[0005] Step 1, obtaining the cold release rate, cold storage rate, cold release revenue and cold storage expenditure of the cold storage system at each moment during the operation cycle;

[0006] Step 2, selecting the moment with the highest cold release revenue as the cold release moment, and selecting the moment with the lowest cold storage expenditure as the cold storage moment;

[0007] Step 3, according to the comparison result of the cold release revenue at the selected cold release moment and the cold storage expenditure at the cold storage moment, adjusting the available cold release amount and the already released cold amount at the cold release moment until the available cold release amount at the cold release moment is 0, and adjusting the available cold storage amount and the already stored cold amount at the cold storage moment until the available cold storage amount at the cold storage moment is 0;

[0008] Step 4, processing the moment with the second highest cold release revenue and the moment with the second lowest cold storage expenditure according to the method of Step 3 until all moments are processed;

[0009] Step 5, determining the operation mode at each moment according to the already released cold amount and the already stored cold amount at each moment.

[0010] Further, the method further includes:

[0011] When the already stored cold amount at the selected cold storage moment reaches the maximum cold storage amount, processing the moment with the second lowest cold storage expenditure.

[0012] Further, Step 3 specifically includes:

[0013] If the cold storage cost at the selected cold storage time is less than the cold release income at the cold release time, then reduce the cold storage capacity that can be stored at this cold storage time, increase the cold storage capacity that has been stored at this cold storage time, reduce the cold release capacity that can be released at this cold release time, and increase the cold release capacity that has been released at this cold release time;

[0014] If the cold storage cost at the selected cold storage time is greater than the cold release income at the cold release time, then reduce the cold storage capacity that can be stored at this cold storage time, and the cold storage capacity that has been stored remains unchanged.

[0015] Furthermore, the method further includes:

[0016] Step Six: Calculate the cold release duration at this time according to the cold release capacity that has been released and the cold release rate at the cold release time, and calculate the cold storage duration at this time according to the cold storage capacity that has been stored and the cold storage rate at the cold storage time.

[0017] According to the second aspect of the embodiments of the present invention, there is provided an operating control system for a cold storage system, which is characterized by including:

[0018] An acquisition module, configured to acquire the cold release rate, cold storage rate, cold release income, and cold storage cost at each moment during the operation cycle of the cold storage system;

[0019] A selection module, configured to select the moment with the highest cold release income as the cold release time, and select the moment with the lowest cold storage cost as the cold storage time;

[0020] A processing module, configured to adjust the cold release capacity that can be released and the cold release capacity that has been released at this cold release time according to the comparison result of the cold release income at the selected cold release time and the cold storage cost at the cold storage time until the cold release capacity that can be released at this cold release time is 0, and adjust the cold storage capacity that can be stored and the cold storage capacity that has been stored at this cold storage time until the cold storage capacity that can be stored at this cold storage time is 0; and is also used to process the moment with the second highest cold release income and the moment with the second lowest cold storage cost until all moments are processed;

[0021] A determination module, configured to determine the operation mode at this time according to the cold release capacity that has been released and the cold storage capacity that has been stored at each moment.

[0022] Furthermore, the processing module is further configured to:

[0023] When the cold storage capacity that has been stored at the selected cold storage time reaches the maximum cold storage capacity, process the moment with the second lowest cold storage cost.

[0024] Furthermore, the processing module is specifically configured to:

[0025] If the cold storage cost at the selected cold storage time is less than the cold release income at the cold release time, then reduce the cold storage capacity that can be stored at this cold storage time, increase the cold storage capacity that has been stored at this cold storage time, reduce the cold release capacity that can be released at this cold release time, and increase the cold release capacity that has been released at this cold release time;

[0026] If the cold storage cost at the selected cold storage time is greater than the cold release income at the cold release time, the cold storage capacity at this cold storage time is reduced, and the stored cold amount remains unchanged.

[0027] Further, the system further includes:

[0028] A calculation module, configured to calculate the cold release duration at this time according to the released cold amount and the cold release rate at the cold release time, and calculate the cold storage duration at this time according to the stored cold amount and the cold storage rate at the cold storage time.

[0029] According to a third aspect of an embodiment of the present invention, a control device is provided, including:

[0030] A processor; and

[0031] A memory, on which executable code is stored, and when the executable code is executed by the processor, the processor is caused to execute the method as described above.

[0032] According to a fourth aspect of an embodiment of the present invention, a cold storage system is provided, including the above control device.

[0033] The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

[0034] Utilize the characteristics of peak and valley electricity prices and the energy consumption of equipment operation to output cold storage and cold release strategies, so as to achieve the purpose of reducing the operation cost of the project.

[0035] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] By describing the exemplary embodiments of the present invention in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present invention will become more obvious. Among them, in the exemplary embodiments of the present invention, the same reference numerals generally represent the same components.

[0037] Figure 1 is a schematic flowchart of an operation control method of a cold storage system shown according to an exemplary embodiment of the present invention;

[0038] Figure 2 is a schematic diagram of the output principle of the cold storage system operation strategy;

[0039] Figure 3 is a curve graph of unit cold storage / cold release expenditure / income;

[0040] Figure 4 is a logical loop flowchart of an operation control method of a cold storage system shown according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0042] The terms used in the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a", "the", and "said" used in the present invention and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0043] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0044] The technical solutions of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] Figure 1 It is a schematic flowchart of an operation control method for a cold storage system shown according to an exemplary embodiment of the present invention.

[0046] See Figure 1 and the method includes:

[0047] 110. Obtain the cold release rate, cold storage rate, cold release revenue, and cold storage expenditure of the cold storage system at each moment during the operation cycle;

[0048] 120. Select the moment with the highest cold release revenue as the cold release moment, and select the moment with the lowest cold storage expenditure as the cold storage moment;

[0049] 130. Adjust the cold release amount and the already released cold amount at the selected cold release moment according to the comparison result of the cold release revenue at the selected cold release moment and the cold storage expenditure at the cold storage moment until the cold release amount at the cold release moment is 0, and adjust the cold storage amount and the already stored cold amount at the cold storage moment until the cold storage amount at the cold storage moment is 0;

[0050] 140. Process the moment with the second-highest cooling release benefit and the moment with the second-lowest cold storage expenditure according to the method in step 130 until all moments are processed;

[0051] 150. Determine the operation mode of each moment according to the amount of cooled discharge and the amount of cold storage at each moment.

[0052] Optionally, in this embodiment, step 130 further includes:

[0053] When the amount of cold storage at the selected cold storage moment reaches the maximum cold storage capacity, process the moment with the second-lowest cold storage expenditure.

[0054] Specifically, each moment is restricted by its own cooling release and cold storage rate, and the total cold storage amount ∑x is restricted by the maximum cold storage capacity ∑x max Restriction.

[0055] Optionally, in this embodiment, step 130 specifically includes:

[0056] 1301. If the cold storage expenditure at the selected cold storage moment is less than the cooling release benefit at the cooling release moment, reduce the available cold storage amount at this cold storage moment, increase the amount of cold storage already stored at this cold storage moment, reduce the available cooling release amount at this cooling release moment, and increase the amount of cooled discharge already released at this cooling release moment;

[0057] 1302. If the cold storage expenditure at the selected cold storage moment is greater than the cooling release benefit at the cooling release moment, reduce the available cold storage amount at this cold storage moment, and the amount of cold storage already stored remains unchanged.

[0058] Optionally, in this embodiment, the method further includes:

[0059] 160. Calculate the cooling release duration at the cooling release moment according to the amount of cooled discharge and the cooling release rate at the cooling release moment, and calculate the cold storage duration at the cold storage moment according to the amount of cold storage already stored and the cold storage rate at the cold storage moment.

[0060] In a specific embodiment, taking an ice thermal storage project as an example, with the market mainstream ice melting-based and chiller-assisted cooling release mode. The goal is transformed from the lowest operation and maintenance cost to the way of using the cooling release and cold storage operation mode to obtain the maximum benefit. First, analyze and model the historical data and static data of the cooling release and cold storage of the project, with an hourly granularity, predict the cold storage rate, cooling release rate, remaining total cold storage amount, and quantify and compare the benefits (energy consumption * electricity price) formed by the decision-making of the operation and cooling release. Utilize the characteristics of the peak and valley of the electricity price and the energy consumption of the equipment operation to output the cold storage and cooling release strategies to achieve the purpose of reducing the operation cost of the project. The overall principle of the strategy output is as Figure 2 shown.

[0061] Features of ice storage cooling project: The cold release is a phase change endothermic process, and the cold release temperature is relatively stable. The cold release during the process is not affected by the change of the remaining ice storage in the ice storage tank.

[0062] The demand data is as follows:

[0063] P(i): Electricity price at time i (yuan / kWh)

[0064] E1(i): Cold station energy consumption without cold release at time i

[0065] E2(i): Cold station energy consumption with cold release at time i

[0066] E3(i): Cold station energy consumption during ice storage at time i

[0067] Q(i): Predicted cooling capacity at time i

[0068] z(i): Predicted cold release at time i

[0069] x(i): Predicted ice storage at time i

[0070] ΔA(i): Cold release revenue at time i, ΔA(i) = (E1(i) - E2(i)) * P(i)

[0071] ΔB(i): Ice storage expenditure at time i, ΔB(i) = (E3(i) - E1(i)) * P(i)

[0072] ΔA(i) / z(i): Revenue per unit cold release at time i

[0073] ΔB(i) / x(i): Expenditure per unit ice storage at time i

[0074] The strategy content is as follows:

[0075] Arrange the hours corresponding to ΔA(i) / z(i), ΔB(i) / x(i), x(i), and z(i) into a sequence

[0076] The following is an example based on two cases

[0077] I. Simple night ice storage and day cold release strategy (absolute revenue)

[0078] There is an obvious boundary between cold release and ice storage, and the opening mode at the corresponding time is determined

[0079] Assume that the electricity price and calculation results of a certain project are as follows:

[0080]

[0081] 7:00, 8:00, and 22:00 are non-business hours, so ice storage and cold release are not required

[0082] In the example, it is assumed that the unit cooling storage capacity and the unit cooling release capacity can be equivalently converted, and a coefficient η needs to be multiplied in the actual calculation. 释冰 。

[0083] Then it can be clearly seen that at the moment when ΔB(i) / x(i) is the smallest during the cooling storage period, the cooling storage expenditure is the least. Similarly, at the moment when ΔA(i) / z(i) is the largest during the cooling release period, the cooling release income is the largest, as Figure 3 shown.

[0084] During the calculation process, the total cooling storage amount is restricted by the maximum cooling storage capacity ∑xmax of the project, and the cooling storage and release amounts must exist and satisfy (income - expenditure) > 0 in the form of exchange, that is, ΔA(i) / z(i) - ΔB(i) / x(i) > 0

[0085] II. Complex Cooling Storage and Release Strategies (Relative Income)

[0086] This situation is mainly applied to future cooling storage projects that inherently have scenarios of using natural energy for power generation and hypothetical scenarios with real-time electricity price fluctuations. Data-wise, there will only be relative cooling storage and release periods, and each moment (hour) will be restricted by its own cooling storage and release rates, as well as the total cooling storage amount ∑x being restricted by the maximum cooling storage capacity ∑x max restriction, that is, 0 ≤ ∑x ≤ ∑x max 。

[0087] And x(i) and z(i) are classified into the already stored / released amounts and the storable / releasable amounts. When the storable / releasable amount at a moment is 0, the calculation proceeds to the next moment. This continues until all moments have been traversed.

[0088] The content of the strategy is as Figure 4 shown:

[0089] 1. Select the evaluation period (1 day / 1 week / 1 month). Take 1 day as an example in the case.

[0090] 2. Predict ΔA(i) / z(i), ΔB(i) / x(i), x(i), and z(i) for all moments as follows:

[0091]

[0092] 3. Granularize x(i) and z(i). For example, x(1) = 1.232 * 10 3 kwh and z(2) = 0.987 * 10 3 kwh. Granularizing by 100 kwh, then x(1) = 12 and z(2) = 10. The finer the precision, the longer the calculation time (which needs to be set according to the actual situation), as follows:

[0093]

[0094] 4. For the sake of easy understanding, at each moment with the lowest cold storage expenditure and the highest cold release income, the cold storage and cold release amounts are replaced in the smallest unit. At the same time, the following limiting conditions are specified:

[0095] ① When judging the cold release moment, it is necessary to evaluate Σx from the cold storage moment to the starting moment.

[0096] If 0 ≤ ∑x ≤ ∑x max , then the cold release can be selected at all moments.

[0097] ② After selecting the cold release moment, compare the cold storage expenditure and the cold release income.

[0098] When ΔB(i) / x(i) < ΔA(i) / z(i), perform the replacement of 1 cold release and cold storage unit, with the available cold storage amount - 1, the stored cold amount + 1, the available cold release amount - 1, and the released cold amount + 1.

[0099] When ΔB(i) / x(i) ≥ ΔA(i) / z(i), change 1 cold storage unit to 0, the available cold storage amount - 1, and the stored cold amount remains unchanged.

[0100] ③ Continue to judge the next cold storage unit until the available cold storage amount at this moment becomes 0, and then judge the moment with the lowest cold storage expenditure for the next time. The loop ends until all cold storage moments are judged.

[0101] Example: Assume that after granulating the maximum cold storage amount at the site of the just-listed case, ∑x max = 50

[0102]

[0103] ④ After the calculation ends,

[0104] Strategy output: The operating mode and duration at each moment, etc., and the stored cold amount / X(i) and the released cold amount / Z(i), so as to obtain the cold storage or cold release mode executed at the i-th moment and the execution time length.

[0105]

[0106] The exemplary embodiment of the present invention also provides an operating control system for a cold storage system, including:

[0107] An acquisition module, configured to acquire the cold release rate, cold storage rate, cold release income, and cold storage expenditure of the cold storage system at each moment during the operation cycle;

[0108] A selection module, configured to select the moment with the highest cold release income as the cold release moment and select the moment with the lowest cold storage expenditure as the cold storage moment;

[0109] A processing module, configured to adjust the available cooling capacity and the already-cooled capacity at the cooling release moment according to the comparison result between the cooling release benefit at the selected cooling release moment and the cold storage expenditure at the cold storage moment until the available cooling capacity at the cooling release moment is 0, and adjust the available cold storage capacity and the already-cold-stored capacity at the cold storage moment until the available cold storage capacity at the cold storage moment is 0; and is also configured to process the moment with the second-highest cooling release benefit and the moment with the second-lowest cold storage expenditure until all moments are processed;

[0110] A determination module, configured to determine the operation mode at each moment according to the already-cooled capacity and the already-cold-stored capacity at each moment.

[0111] Optionally, in this embodiment, the processing module is further configured to:

[0112] When the already-cold-stored capacity at the selected cold storage moment reaches the maximum cold storage capacity, process the moment with the second-lowest cold storage expenditure.

[0113] Optionally, in this embodiment, the processing module is specifically configured to:

[0114] If the cold storage expenditure at the selected cold storage moment is less than the cooling release benefit at the cooling release moment, reduce the available cold storage capacity at the cold storage moment, increase the already-cold-stored capacity at the cold storage moment, reduce the available cooling capacity at the cooling release moment, and increase the already-cooled capacity at the cooling release moment;

[0115] If the cold storage expenditure at the selected cold storage moment is greater than the cooling release benefit at the cooling release moment, reduce the available cold storage capacity at the cold storage moment and keep the already-cold-stored capacity unchanged.

[0116] Optionally, in this embodiment, the system further includes:

[0117] A calculation module, configured to calculate the cooling release duration at the cooling release moment according to the already-cooled capacity and the cooling release rate at the cooling release moment, and calculate the cold storage duration at the cold storage moment according to the already-cold-stored capacity and the cold storage rate at the cold storage moment.

[0118] Regarding the system in the above embodiment, the specific manners in which each module performs operations have been described in detail in the embodiment related to the method, and will not be elaborated here in detail.

[0119] A control device shown in an exemplary embodiment of the present invention includes a memory and a processor.

[0120] The processor can be a Central Processing Unit (CPU), or can also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0121] The memory can include various types of storage units, such as system memory, read-only memory (ROM), and permanent storage devices. Among them, the ROM can store static data or instructions required by the processor or other modules of the computer. The permanent storage device can be a read-write storage device. The permanent storage device can be a non-volatile storage device that does not lose the stored instructions and data even when the computer is powered off. In some embodiments, the permanent storage device uses a mass storage device (such as a magnetic or optical disk, flash memory) as the permanent storage device. In some other embodiments, the permanent storage device can be a removable storage device (such as a floppy disk, optical drive). The system memory can be a read-write storage device or a volatile read-write storage device, such as dynamic random access memory. The system memory can store some or all of the instructions and data required by the processor during operation. In addition, the memory can include any combination of computer-readable storage media, including various types of semiconductor storage chips (DRAM, SRAM, SDRAM, flash memory, programmable read-only memory), and magnetic disks and / or optical disks can also be used. In some embodiments, the memory can include a removable storage device that is readable and / or writable, such as a compact disc (CD), read-only digital versatile disc (such as DVD-ROM, dual-layer DVD-ROM), read-only Blu-ray disc, super density disc, flash memory card (such as SD card, min SD card, Micro-SD card, etc.), magnetic floppy disk, etc. The computer-readable storage medium does not include carrier waves and instantaneous electronic signals transmitted wirelessly or wired.

[0122] An executable code is stored on the memory. When the executable code is processed by the processor, it can cause the processor to execute some or all of the methods described above.

[0123] In addition, the method according to the present invention can also be implemented as a computer program or a computer program product, which includes computer program code instructions for executing some or all of the above steps of the method of the present invention.

[0124] Alternatively, the present invention can also be implemented as a non-transitory machine-readable storage medium (or computer-readable storage medium, or machine-readable storage medium) having executable code (or computer program, or computer instruction code) stored thereon. When the executable code (or computer program, or computer instruction code) is executed by a processor of an electronic device (or computing device, server, etc.), the processor is caused to execute some or all of the steps of the above-described method according to the present invention.

[0125] The solution of the present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily essential to the present invention. Additionally, it can be understood that the steps in the method embodiments of the present invention can be adjusted, combined, and deleted according to actual needs, and the modules in the device embodiments of the present invention can be combined, divided, and deleted according to actual needs.

[0126] Those skilled in the art will also understand that the various exemplary logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein can be implemented as electronic hardware, computer software, or a combination of both.

[0127] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems and methods according to multiple embodiments of the present invention. In this regard, each block in the flowchart or block diagram may represent a module, a segment of a program, or a part of code that contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or operations, or by a combination of dedicated hardware and computer instructions.

[0128] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for operating and controlling a cold storage system, characterized in that, Including: Step 1: Obtain the cooling release rate, cooling storage rate, cooling release revenue, and cooling storage expenditure of the cool storage system at each moment during the operation cycle; Step 2: Select the moment with the highest cooling release revenue as the cooling release moment, and select the moment with the lowest cooling storage expenditure as the cooling storage moment; Step 3: According to the comparison result of the cooling release revenue at the selected cooling release moment and the cooling storage expenditure at the selected cooling storage moment, adjust the available cooling release amount and the already released cooling amount at the cooling release moment until the available cooling release amount at the cooling release moment is 0, and adjust the available cooling storage amount and the already stored cooling amount at the cooling storage moment until the available cooling storage amount at the cooling storage moment is 0; Step 4: Process the moment with the second-highest cooling release revenue and the moment with the second-lowest cooling storage expenditure in the way of Step 3 until all moments are processed; Step 5: Determine the operation mode at each moment according to the already released cooling amount and the already stored cooling amount at each moment; Step 3 specifically includes: If the cooling storage expenditure at the selected cooling storage moment is less than the cooling release revenue at the cooling release moment, reduce the available cooling storage amount at the cooling storage moment, increase the already stored cooling amount at the cooling storage moment, reduce the available cooling release amount at the cooling release moment, and increase the already released cooling amount at the cooling release moment; If the cooling storage expenditure at the selected cooling storage moment is greater than the cooling release revenue at the cooling release moment, reduce the available cooling storage amount at the cooling storage moment, and the already stored cooling amount remains unchanged.

2. The method according to claim 1, characterized in that, It also includes: When the already stored cooling amount at the selected cooling storage moment reaches the maximum cooling storage amount, process the moment with the second-lowest cooling storage expenditure.

3. The method according to claim 1, wherein It also includes: Step 6: Calculate the cooling release duration at the cooling release moment according to the already released cooling amount and the cooling release rate at the cooling release moment, and calculate the cooling storage duration at the cooling storage moment according to the already stored cooling amount and the cooling storage rate at the cooling storage moment.

4. An operating control system for a cold storage system, characterized in that, Including: An acquisition module for obtaining the cooling release rate, cooling storage rate, cooling release revenue, and cooling storage expenditure of the cool storage system at each moment during the operation cycle; A selection module for selecting the moment with the highest cooling release revenue as the cooling release moment and selecting the moment with the lowest cooling storage expenditure as the cooling storage moment; A processing module for adjusting the available cooling release amount and the already released cooling amount at the cooling release moment according to the comparison result of the cooling release revenue at the selected cooling release moment and the cooling storage expenditure at the selected cooling storage moment until the available cooling release amount at the cooling release moment is 0, and adjusting the available cooling storage amount and the already stored cooling amount at the cooling storage moment until the available cooling storage amount at the cooling storage moment is 0; and also for processing the moment with the second-highest cooling release revenue and the moment with the second-lowest cooling storage expenditure until all moments are processed; A determination module for determining the operation mode at each moment according to the already released cooling amount and the already stored cooling amount at each moment; The processing module is specifically used for: If the cooling storage expenditure at the selected cooling storage moment is less than the cooling release revenue at the cooling release moment, reduce the available cooling storage amount at the cooling storage moment, increase the already stored cooling amount at the cooling storage moment, reduce the available cooling release amount at the cooling release moment, and increase the already released cooling amount at the cooling release moment; If the cooling storage expenditure at the selected cooling storage moment is greater than the cooling release revenue at the cooling release moment, reduce the available cooling storage amount at the cooling storage moment, and the already stored cooling amount remains unchanged.

5. The system according to claim 4, wherein The processing module is also used for: When the already stored cooling amount at the selected cooling storage moment reaches the maximum cooling storage amount, process the moment with the second-lowest cooling storage expenditure.

6. The system according to claim 4, characterized in that, It also includes: A calculation module is configured to calculate the cooling duration at a cooling moment based on the cooled amount and the cooling rate at the cooling moment, and calculate the cold storage duration at a cold storage moment based on the cold stored amount and the cold storage rate at the cold storage moment.

7. A control device, characterized in that, It includes: a processor; and a memory storing executable code which, when executed by the processor, causes the processor to execute the method according to any one of claims 1-3.

8. A cold storage system, characterized in that, It includes the control device according to claim 7.

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