Energy efficiency evaluation method, device and equipment of cold storage and supply system, medium and product

Abstract

The invention provides an energy efficiency evaluation method, device and equipment of a cold storage and supply system, a medium and a product, and relates to the technical field of renewable energy sources. The method comprises the steps that according to the valley section electricity saving rate and the peak section electricity saving rate of a target cold storage and supply system in a target time period, the valley section cold storage and refrigeration electricity saving amount and the peak section cold storage and supply electricity saving amount of the target cold storage and supply system in the target time period are determined; determining target cold storage and supply power consumption of the target cold storage and supply system in the target time period according to the valley-section cold storage and refrigeration power saving quantity and the peak-section cold storage and supply power saving quantity; and inputting the target cold storage and supply power consumption into the energy efficiency evaluation model to obtain a target energy efficiency evaluation value of the target cold storage and supply system in the target time period. By means of the method, during energy efficiency evaluation, the target cold storage and supply power consumption is determined by combining the valley section cold storage and refrigeration power saving quantity and the peak section cold storage and supply power saving quantity, energy efficiency evaluation is conducted according to the target cold storage and supply power consumption, and the accuracy of evaluation of the energy saving benefits of the cold storage and supply system can be improved.

Description

Technical Field

[0001] The present invention relates to the field of renewable energy technology, and in particular to an energy efficiency evaluation method, device, equipment, medium and product for a cold storage and cooling system. Background Art

[0002] Thermal Energy Storage (TES) cooling is a technology that cools by storing cold energy during low-demand periods (such as at night or off-peak periods) and then releasing it during high-demand periods (such as during the day or peak periods). Its main purpose is to use energy for cooling storage during periods of low electricity load in order to reduce the pressure on the power grid during peak electricity demand periods, while saving energy and costs.

[0003] In the existing standards for building energy efficiency evaluation and refrigeration room energy efficiency rating evaluation, only a simple conversion is made to the energy-saving benefits of cold storage and cooling, resulting in low accuracy in the assessment of the energy-saving benefits of the cold storage and cooling system. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a method, device, equipment, medium and product for evaluating the energy efficiency of a cold storage and cooling system, so as to improve the accuracy of the evaluation of the energy-saving benefits of the cold storage and cooling system.

[0005] In a first aspect, an embodiment of the present application provides an energy efficiency evaluation method for a cold storage and cooling system, the method comprising: Determining the valley-stage cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the valley-stage power saving rate of the target cold storage and cooling system in the target time period; Determining the peak-segment cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the peak-segment power saving rate of the target cold storage and cooling system in the target time period; Determine the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period according to the valley cold storage and cooling power saving and the peak cold storage and cooling power saving; The target cold storage and cooling power consumption is input into an energy efficiency evaluation model to obtain a target energy efficiency evaluation value of the target cold storage and cooling system in the target time period; wherein the energy efficiency evaluation model is used to determine the energy efficiency evaluation value of the cold storage and cooling system based on the cold storage and cooling capacity and the cold storage and cooling power consumption of the cold storage and cooling system, and the energy efficiency evaluation value of the cold storage and cooling system is used to characterize the cold storage and energy-saving benefit of the cold storage and cooling system.

[0006] In some embodiments, before inputting the target cold storage and cooling power consumption into an energy efficiency evaluation model, the method further includes: Obtaining the cold storage cooling capacity, non-cold storage cooling capacity, non-cold storage cooling power consumption, and cold storage cooling power consumption of the target cold storage cooling system in a target time period; Determining a cold storage cooling ratio according to the cold storage cooling amount and the non-cold storage cooling amount; Determining the energy efficiency of the non-cold storage cooling system according to the non-cold storage cooling capacity and the non-cold storage cooling power consumption; Determining the energy efficiency of the cold storage refrigeration system according to the cold storage cooling capacity and the cold storage refrigeration power consumption; The energy efficiency evaluation model is constructed according to the cold storage and cooling ratio, the energy efficiency of the non-cold storage and cooling system, the energy efficiency of the cold storage refrigeration system and the target cold storage and cooling power consumption.

[0007] In some embodiments, the energy efficiency evaluation model is: ; in, represents the energy efficiency evaluation value of the cold storage cooling system; Indicates the cold storage and cooling supply ratio; Indicates the energy efficiency of the non-storage cooling system; Indicates the power saving rate of the valley section; Indicates the peak power saving rate; represents a first value, which is used to characterize the peak cold storage and supply capacity and the cold storage and supply capacity ; It represents the energy efficiency of the cold storage refrigeration system.

[0008] In some embodiments, determining the peak cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the peak power saving rate of the target cold storage and cooling system in the target time period includes: Obtaining the cold storage and cooling capacity of the target cold storage and cooling system in the target time period; Acquire a first value, where the first value is used to characterize the relationship between the peak cold storage and supply capacity and the cold storage and supply capacity; The product of the peak-segment power saving rate, the first value and the cold storage and cooling power consumption is determined as the peak-segment cold storage and cooling power saving of the target cold storage and cooling system in the target time period.

[0009] In some embodiments, determining the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period according to the valley cold storage and cooling power saving and the peak cold storage and cooling power saving includes: Obtaining the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period; Determine a target power consumption rate according to the valley-segment power saving rate, the peak-segment power saving rate, and the first value; The target cold storage and cooling power consumption is determined by multiplying the target power consumption rate by the cold storage and cooling power consumption.

[0010] In some embodiments, before determining the valley-stage cold storage and cooling energy saving of the target cold storage and cooling system in the target time period according to the valley-stage energy saving rate of the target cold storage and cooling system in the target time period, the method further includes: Obtain the coal consumption saved during valley period, coal consumption saved during peak period and the current coal consumption of power plants; The ratio of the valley section coal consumption saving to the current power plant coal consumption is determined as the valley section power saving rate; The ratio of the peak-segment coal consumption savings to the current power plant coal consumption is determined as the peak-segment power saving rate.

[0011] In a second aspect, an embodiment of the present application provides an energy efficiency evaluation device for a cold storage and cooling system, the device comprising: A first determination module is used to determine the valley section cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the valley section power saving rate of the target cold storage and cooling system in the target time period; A second determination module is used to determine the peak cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the peak power saving rate of the target cold storage and cooling system in the target time period; A third determination module is used to determine the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period according to the valley cold storage and cooling power saving and the peak cold storage and cooling power saving; An evaluation module is used to input the target cold storage and cooling power consumption into an energy efficiency evaluation model to obtain a target energy efficiency evaluation value of the target cold storage and cooling system in the target time period; wherein the energy efficiency evaluation model is used to determine the energy efficiency evaluation value of the cold storage and cooling system based on the cold storage and cooling capacity and the cold storage and cooling power consumption of the cold storage and cooling system, and the energy efficiency evaluation value of the cold storage and cooling system is used to characterize the cold storage and energy-saving benefits of the cold storage and cooling system.

[0012] In a third aspect, an embodiment of the present application provides an electronic device, including: a memory configured to store instructions; and The processor is configured to call the instructions from the memory and to implement the energy efficiency evaluation method of the cold storage and cooling system provided in the first aspect of the embodiment of the present application when executing the instructions.

[0013] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having computer program instructions stored thereon, and when the computer program instructions are executed by a processor, an energy efficiency evaluation method for a cold storage and cooling system as described above is implemented.

[0014] In a fifth aspect, an embodiment of the present application provides a computer program product. When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the energy efficiency evaluation method of the cold storage and cooling system as described above.

[0015] In an embodiment of the present application, the valley cold storage and cooling energy saving and the peak cold storage and cooling energy saving of the target cold storage and cooling system in the target time period are determined according to the valley cold storage and cooling energy saving rate and the peak cold storage and cooling energy saving rate of the target cold storage and cooling system in the target time period; the target cold storage and cooling energy consumption of the target cold storage and cooling system in the target time period is determined according to the valley cold storage and cooling energy saving and the peak cold storage and cooling energy saving; the target cold storage and cooling energy consumption is input into the energy efficiency evaluation model to obtain the target energy efficiency evaluation value of the target cold storage and cooling system in the target time period. Through the above method, when performing energy efficiency evaluation, the target cold storage and cooling energy consumption is determined in combination with the valley cold storage and cooling energy saving and the peak cold storage and cooling energy saving, and energy efficiency evaluation is performed based on the target cold storage and cooling energy consumption, which can improve the accuracy of the evaluation of the energy-saving benefits of the cold storage and cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a flow chart of an energy efficiency evaluation method for a cold storage and cooling system provided in an embodiment of the present application; Figure 2 is a structural schematic diagram of an energy efficiency evaluation device for a cold storage and cooling system provided in an embodiment of the present application; Figure 3 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0018] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0019] In conjunction with the accompanying drawings, the energy efficiency evaluation method, device, equipment, medium and product of the cold storage and cooling system provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0020] See also Figure 1 , is a flow chart of the energy efficiency evaluation method of the cold storage cooling system provided in the embodiment of the present application. Figure 1 As shown, the energy efficiency evaluation method of the cold storage cooling system includes the following steps S100 to S400.

[0021] Step S100: determining the valley-stage cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the valley-stage power saving rate of the target cold storage and cooling system in the target time period.

[0022] In the embodiment of the present application, the cold storage cooling system is a method of regulating the system load by using cold storage technology, by pre-cooling and storing cold water during off-peak hours when electricity is relatively cheap, and then using the stored cold water during peak hours to meet the cooling demand, thereby achieving energy saving, reducing operating costs, etc. In one example, the target cold storage cooling system can be an air conditioning cold storage cooling system.

[0023] In an embodiment of the present application, the contribution of cold storage to energy saving includes energy saving in the valley section of electricity prices and energy saving in the peak section of electricity prices. The valley section can be understood as the low period of electricity consumption, and the power saving rate is an indicator to measure the effect of saving electricity. It is usually used to evaluate the degree of reduction in electricity consumption compared to the original consumption after taking energy-saving measures. In one example, the power saving rate can be determined based on the ratio of the coal consumption saved by the power plant to the current coal consumption of the power plant. The amount of energy saved by cold storage refrigeration can be understood as the electric energy saved in the process of using electricity for refrigeration in the cold storage system.

[0024] In an embodiment of the present application, after determining the valley power saving rate of the target cold storage and cooling system in the target time period, the valley power saving rate can be used to determine the valley power saving rate of the target cold storage and cooling system in the target time period. In one example, the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period is first obtained, and then the product of the valley power saving rate and the cold storage and cooling power consumption is determined as the valley power saving rate of the target cold storage and cooling system in the target time period. The cold storage and cooling power consumption can be understood as the electrical energy consumed in the process of using electricity for cooling in the cold storage system.

[0025] The target cold storage cooling system's valley-storage cooling power saving in the target time period can be calculated using formula (1): ; (1) In the formula, Indicates the amount of electricity saved by cold storage and refrigeration during valley period. Indicates the valley power saving rate, It indicates the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period.

[0026] Step S200: determining the peak-period cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the peak-period power saving rate of the target cold storage and cooling system in the target time period.

[0027] In the embodiment of the present application, the peak period can be understood as the peak period of electricity consumption. After determining the peak period power saving rate of the target cold storage and cooling system in the target time period, the peak period cold storage and cooling power saving of the target cold storage and cooling system in the target time period can be determined according to the peak period power saving rate.

[0028] In some embodiments, determining the peak cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the peak power saving rate of the target cold storage and cooling system in the target time period may include: Obtaining the cold storage and cooling capacity of the target cold storage and cooling system in the target time period; Acquire a first value, where the first value is used to characterize the relationship between the peak cold storage and supply capacity and the cold storage and supply capacity; The product of the peak-segment power saving rate, the first value and the cold storage and cooling power consumption is determined as the peak-segment cold storage and cooling power saving of the target cold storage and cooling system in the target time period.

[0029] Specifically, the first value may be understood as a numerical value used to characterize the relationship between the peak cold storage and cooling capacity and the target cold storage and cooling capacity of the cold storage and cooling system in the target time period.

[0030] In one example, the first value may be a numerical value representing the ratio of the peak cold storage cooling capacity to the cold storage cooling capacity of the target cold storage cooling system in the target time period, or a numerical value representing the ratio of the peak cold storage cooling power consumption to the cold storage cooling power consumption of the target cold storage cooling system in the target time period. The cold storage cooling power consumption can be understood as the electric energy consumed in the process of using the previously stored cold energy of the cold storage system to provide cooling when cooling is required.

[0031] The first value can be calculated by formula (2): ; (2) In the formula, represents the first value, Indicates the peak period cold storage cooling capacity, It indicates the amount of cooling capacity of the target cooling system in the target time period. Indicates the peak period cold storage cooling power consumption, It indicates the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period.

[0032] In the embodiment of the present application, to simplify the calculation, the first value may also be 1 or 0.

[0033] In this embodiment, by determining the energy saving of the cold storage and cooling supply during the peak period, the accuracy of the evaluation of the energy saving benefit of the cold storage and cooling supply system can be improved.

[0034] After considering the energy-saving benefits of the peak period, combined with formula (2), the peak period energy saving of the target cold storage cooling system in the target time period can be calculated by formula (3): ; (3) In the formula, Indicates the amount of electricity saved by cold storage and cooling during peak hours. Indicates the peak power saving rate, represents the first value, It indicates the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period.

[0035] Step S300: Determine the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period according to the valley-stage cold storage and cooling power saving and the peak-stage cold storage and cooling power saving.

[0036] In the embodiment of the present application, the target cold storage and cooling power consumption can be understood as the power consumption after considering the energy saving benefits of valley and peak periods. The target cold storage and cooling power consumption can be determined as the difference between the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period and the cold storage and cooling power saving in the valley period and the cold storage and cooling power saving in the peak period.

[0037] The target cold storage cooling power consumption can be calculated by formula (4): ; (4) In the formula, Indicates the target cold storage cooling power consumption, It represents the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period. Indicates the amount of electricity saved by cold storage and refrigeration during valley period. Indicates the amount of electricity saved by cold storage and cooling during peak hours.

[0038] Step S400: input the target cold storage and cooling power consumption into an energy efficiency evaluation model to obtain a target energy efficiency evaluation value of the target cold storage and cooling system in the target time period; wherein the energy efficiency evaluation model is used to determine the energy efficiency evaluation value of the cold storage and cooling system based on the cold storage and cooling capacity and the cold storage and cooling power consumption of the cold storage and cooling system, and the energy efficiency evaluation value of the cold storage and cooling system is used to characterize the cold storage and energy-saving benefits of the cold storage and cooling system.

[0039] In the embodiment of the present application, the energy efficiency evaluation model refers to a model used to evaluate the cold storage and energy-saving benefits of the cold storage and cooling system. Specifically, the energy efficiency evaluation model can determine the energy efficiency evaluation value of the cold storage and cooling system based on the cold storage and cooling capacity of the cold storage and cooling system and the cold storage and cooling power consumption, and the energy efficiency evaluation value of the cold storage and cooling system can be used to characterize the cold storage and energy-saving benefits of the cold storage and cooling system. Within the energy efficiency evaluation model, the evaluation value of the system energy efficiency can be determined based on the ratio of the cold storage and cooling capacity to the power consumption.

[0040] In the embodiment of the present application, after determining the target cold storage and cooling power consumption, the target cold storage and cooling power consumption can be input into the energy efficiency evaluation model, and the energy efficiency evaluation model can output the target energy efficiency evaluation value of the target cold storage and cooling system in the target time period. Then, the energy-saving benefit of the cold storage and cooling system can be determined according to the target energy efficiency evaluation value of the target cold storage and cooling system in the target time period.

[0041] Through the above steps S100 to S400, the valley cold storage and cooling energy saving and peak cold storage and cooling energy saving of the target cold storage and cooling system in the target time period are determined according to the valley cold storage and cooling energy saving rate and the peak cold storage and cooling energy saving rate of the target cold storage and cooling system in the target time period; the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period is determined according to the valley cold storage and cooling energy saving and the peak cold storage and cooling energy saving; the target cold storage and cooling power consumption is input into the energy efficiency evaluation model to obtain the target energy efficiency evaluation value of the target cold storage and cooling system in the target time period. Through the above method, when performing energy efficiency evaluation, the target cold storage and cooling power consumption is determined in combination with the valley cold storage and cooling energy saving and the peak cold storage and cooling energy saving, and energy efficiency evaluation is performed according to the target cold storage and cooling power consumption, which can improve the accuracy of the evaluation of the energy-saving benefits of the cold storage and cooling system.

[0042] In some embodiments, before inputting the target cold storage and cooling power consumption into an energy efficiency evaluation model, the method further includes: Obtaining the cold storage cooling capacity, non-cold storage cooling capacity, non-cold storage cooling power consumption, and cold storage cooling power consumption of the target cold storage cooling system in a target time period; Determining a cold storage cooling ratio according to the cold storage cooling amount and the non-cold storage cooling amount; Determining the energy efficiency of the non-cold storage cooling system according to the non-cold storage cooling capacity and the non-cold storage cooling power consumption; Determining the energy efficiency of the cold storage refrigeration system according to the cold storage cooling capacity and the cold storage refrigeration power consumption; The energy efficiency evaluation model is constructed according to the cold storage and cooling ratio, the energy efficiency of the non-cold storage and cooling system, the energy efficiency of the cold storage refrigeration system and the target cold storage and cooling power consumption.

[0043] Specifically, firstly, the cold storage cooling capacity, non-cold storage cooling capacity, non-cold storage cooling power consumption, and cold storage cooling power consumption of the target cold storage cooling system in the target time period are obtained. The cold storage cooling ratio is determined according to the cold storage cooling capacity and the non-cold storage cooling capacity. The cold storage cooling ratio can be understood as the ratio of the cold storage cooling capacity to the total cooling capacity. The total cooling capacity can be understood as the sum of the cold storage cooling capacity and the non-cold storage cooling capacity.

[0044] The ratio of cold storage to cooling supply can be calculated by formula (5): ; (5) In the formula, Indicates the ratio of cold storage to cooling supply. Indicates the amount of cold storage and cooling. Indicates non-storage cooling capacity.

[0045] In an embodiment of the present application, the energy efficiency of the non-cold storage refrigeration system can be determined based on the non-cold storage refrigeration capacity and the non-cold storage refrigeration power consumption; and the energy efficiency of the cold storage refrigeration system can be determined based on the cold storage refrigeration capacity and the cold storage refrigeration power consumption.

[0046] The energy efficiency of the non-storage cooling system can be calculated using formula (6): ; (6) In the formula, represents the energy efficiency of non-storage cooling system, Indicates the non-storage cooling capacity. Indicates non-storage cooling power consumption.

[0047] The energy efficiency of the cold storage refrigeration system can be calculated by formula (7): ; (7) In the formula, Indicates the energy efficiency of the cold storage refrigeration system, Indicates the amount of cold storage and cooling. Indicates the power consumption of cold storage refrigeration.

[0048] In the embodiment of the present application, the non-cold storage refrigeration power consumption and the cold storage refrigeration power consumption may include but are not limited to the power consumption of equipment such as refrigerators, chilled water pumps, cooling water pumps and cooling towers.

[0049] In the embodiment of the present application, the cold storage and cooling supply ratio is determined respectively. , Energy efficiency of non-storage cooling system , Energy efficiency of cold storage refrigeration system And target thermal storage and cooling power consumption After that, the cooling ratio can be adjusted according to the , Energy efficiency of non-storage cooling system , Energy efficiency of cold storage refrigeration system And target thermal storage and cooling power consumption Construct an energy efficiency assessment model.

[0050] In an embodiment of the present application, the target power consumption rate is determined based on the valley power saving rate, the peak power saving rate and the first value, and the corrected energy efficiency of the cold storage cooling system is determined based on the ratio of the energy efficiency of the cold storage refrigeration system to the target power consumption rate.

[0051] In the embodiment of the present application, the corrected energy efficiency of the cold storage and cooling system can also be determined based on the ratio of the cold storage and cooling capacity to the target cold storage and cooling power consumption.

[0052] In the embodiment of the present application, the energy efficiency evaluation model is used to determine the energy efficiency evaluation value of the cold storage cooling system based on the cold storage cooling capacity and the cold storage cooling power consumption of the cold storage cooling system. When constructing the energy efficiency evaluation model, the evaluation value of the system energy efficiency can be determined according to the ratio of the cold storage cooling capacity to the power consumption. The energy efficiency evaluation formula of the target cold storage cooling system in the target time period can be expressed by formula (8): ; (8) In the formula, represents the energy efficiency evaluation value of the cold storage cooling system, Indicates the non-storage cooling capacity. Indicates the amount of cold storage and cooling. Indicates the non-storage cooling power consumption, Indicates the target cold storage cooling power consumption.

[0053] Substituting formula (1) to formula (7) into formula (8), the energy efficiency evaluation model can be obtained as formula (9): ; (9) in, represents the energy efficiency evaluation value of the cold storage cooling system; Indicates the cold storage and cooling supply ratio; Indicates the energy efficiency of the non-storage cooling system; Indicates the power saving rate of the valley section; Indicates the peak power saving rate; represents a first value, and the first value is used to characterize the peak cold storage and supply capacity and the cold storage and supply capacity ; It represents the energy efficiency of the cold storage refrigeration system.

[0054] In the embodiment of the present application, the construction of the energy efficiency evaluation model is described by taking the target cold storage cooling system as an example. However, in actual applications, the model can be constructed by any cold storage cooling system, and this embodiment does not limit the cold storage cooling system to the target cold storage cooling system. At the same time, in the energy efficiency evaluation model construction stage, the cold storage cooling capacity, non-cold storage cooling capacity, non-cold storage refrigeration power consumption, and cold storage refrigeration power consumption need to be parameters collected in the same time period, and the time period corresponding to the energy efficiency evaluation model construction stage and the time period corresponding to the energy efficiency evaluation model application stage may be the same or different.

[0055] In this embodiment, an energy efficiency evaluation model is constructed by combining the energy saving of cold storage and cooling in the valley period and the energy saving of cold storage and cooling in the peak period, and the target energy efficiency evaluation value of the target cold storage and cooling system in the target time period is determined according to the energy efficiency evaluation model, thereby improving the accuracy of the evaluation of the energy-saving benefits of the cold storage and cooling system.

[0056] In some embodiments, determining the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period according to the valley cold storage and cooling power saving and the peak cold storage and cooling power saving includes: Obtaining the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period; Determine a target power consumption rate according to the valley-segment power saving rate, the peak-segment power saving rate, and the first value; The target cold storage and cooling power consumption is determined by multiplying the target power consumption rate by the cold storage and cooling power consumption.

[0057] Specifically, the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period can be determined according to the valley cold storage and cooling power saving and the peak cold storage and cooling power saving. Since the valley cold storage and cooling power saving is the product of the valley power saving rate and the cold storage and cooling power consumption, the valley cold storage and cooling power saving is the product of the peak power saving rate, the first value, and the cold storage and cooling power consumption.

[0058] When the preset power consumption rate is 1, the target power consumption rate can be determined according to the valley power saving rate, the peak power saving rate and the first value. The target cold storage cooling power consumption is determined by multiplying the target power consumption rate by the cold storage cooling power consumption. The target power consumption rate can be understood as the power consumption rate after considering the energy saving benefits of the valley and peak periods.

[0059] The target cold storage cooling power consumption can be calculated by formula (10): ; (10) In the formula, Indicates the target cold storage cooling power consumption, It represents the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period. Indicates the valley power saving rate, Indicates the peak power saving rate, Indicates the first value. Indicates the target power consumption rate.

[0060] In this embodiment, by combining the valley-segment power saving rate and the peak-segment power saving rate to determine the target cold storage and cooling power consumption, the accuracy of the evaluation of the energy-saving benefit of the cold storage and cooling system can be improved.

[0061] In some embodiments, before determining the valley-stage cold storage and cooling energy saving of the target cold storage and cooling system in the target time period according to the valley-stage energy saving rate of the target cold storage and cooling system in the target time period, the method further includes: Obtain the coal consumption saved during valley period, coal consumption saved during peak period and the current coal consumption of power plants; The ratio of the valley section coal consumption saving to the current power plant coal consumption is determined as the valley section power saving rate; The ratio of the peak-segment coal consumption savings to the current power plant coal consumption is determined as the peak-segment power saving rate.

[0062] Specifically, the power saving rate can be determined based on the ratio of the coal consumption saved by the power plant to the current coal consumption of the power plant. For the valley power saving rate and the peak power saving rate, they can be calculated based on the valley power saving consumption and the peak power saving consumption, respectively. First, the valley power saving consumption, the peak power saving consumption and the current power plant coal consumption are obtained, and then the ratio of the valley power saving consumption to the current power plant coal consumption is determined as the valley power saving rate; the ratio of the peak power saving consumption to the current power plant coal consumption is determined as the peak power saving rate.

[0063] In one example, the coal consumption saved in the valley section is 0.059kg / kWhe, and the coal consumption saved in the peak section is 0.04kg / kWhe. The current coal consumption of the power plant is 0.293kg / kWhe, so the power saving rate in the valley section is 0.059 / 0.293=20%, and the power saving rate in the peak section is 0.04 / 0.293=14%.

[0064] In this embodiment, by determining the valley section power saving rate and the peak section power saving rate based on the valley section coal saving consumption, the peak section coal saving consumption and the current power plant coal consumption, the accuracy of determining the valley section power saving rate and the peak section power saving rate can be improved, thereby improving the accuracy of the evaluation of the energy-saving benefits of the cold storage and cooling system.

[0065] In an embodiment of the present application, the corrected energy efficiency of the cold storage and cooling system can also be determined based on the valley power saving rate, the peak power saving rate and the first value. The corrected energy efficiency of the cold storage and cooling system can be understood as the energy efficiency of the cold storage and cooling system after taking into account the valley energy saving benefits and the peak energy saving benefits. In one example, the corrected energy efficiency of the cold storage and cooling system can be the ratio of the cold storage and cooling amount to the target cold storage and cooling system power consumption. In another example, the corrected energy efficiency of the cold storage and cooling system can also be the ratio of the cold storage refrigeration system energy efficiency to the target power consumption rate. The corrected energy efficiency of the cold storage and cooling system can be calculated by formula (11): ; (11) In the formula, It represents the corrected energy efficiency of the cold storage cooling system. Indicates the amount of cold storage and cooling. Indicates the target cold storage cooling power consumption, Indicates the energy efficiency of the cold storage refrigeration system. Indicates the target power consumption rate.

[0066] According to formula (11), due to is a value less than 1, so Greater than , that is, the energy efficiency of the cold storage cooling system after correction is greater than the energy efficiency of the cold storage refrigeration system before correction.

[0067] See also Figure 2 , is a schematic diagram of the structure of an energy efficiency evaluation device for a cold storage and cooling system provided in an embodiment of the present application. In a second aspect, an energy efficiency evaluation device 20 for a cold storage and cooling system is provided in an embodiment of the present application. The device 20 includes: The first determination module 21 is used to determine the valley section cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the valley section power saving rate of the target cold storage and cooling system in the target time period; A second determination module 22 is used to determine the peak cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the peak power saving rate of the target cold storage and cooling system in the target time period; The third determination module 23 is used to determine the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period according to the valley cold storage and cooling power saving and the peak cold storage and cooling power saving; The evaluation module 24 is used to input the target cold storage and cooling power consumption into an energy efficiency evaluation model to obtain a target energy efficiency evaluation value of the target cold storage and cooling system in the target time period; wherein the energy efficiency evaluation model is used to determine the energy efficiency evaluation value of the cold storage and cooling system based on the cold storage and cooling capacity and the cold storage and cooling power consumption of the cold storage and cooling system, and the energy efficiency evaluation value of the cold storage and cooling system is used to characterize the cold storage and energy-saving benefits of the cold storage and cooling system.

[0068] The energy efficiency evaluation device 20 for the cold storage and cooling system provided in the second aspect of the embodiment of the present application can implement each process implemented in the above-mentioned method embodiment and achieve the same beneficial effects. To avoid repetition, it will not be repeated here.

[0069] See also Figure 3 , is a structural diagram of an electronic device provided in an embodiment of the present application. In a third aspect, an embodiment of the present application provides an electronic device 3000, including a processor 3100 and a memory 3200. The memory 3200 stores machine executable instructions that can be executed by the processor 3100. The processor 3100 can execute the machine executable instructions to implement the above-mentioned energy efficiency evaluation method of the cold storage and cooling system.

[0070] A fourth aspect of an embodiment of the present application provides a machine-readable storage medium, on which instructions are stored. When the instructions are executed by a processor, the processor implements the above-mentioned energy efficiency evaluation method for the cold storage and cooling system.

[0071] In some implementations, the embodiments of the present application further provide a computer program product, including a computer program, which, when executed by a processor, implements the energy efficiency evaluation method of the cold storage and cooling system according to the above implementation.

[0072] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0073] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer-readable memory produce a product including an instruction device, which implements the functions specified in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0074] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0075] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0076] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0077] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0078] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

[0079] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A method for evaluating energy efficiency of a cold storage cooling system, characterized in that: The method comprises: Determining the valley-stage cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the valley-stage power saving rate of the target cold storage and cooling system in the target time period; Determining the peak-segment cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the peak-segment power saving rate of the target cold storage and cooling system in the target time period; Determine the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period according to the valley cold storage and cooling power saving and the peak cold storage and cooling power saving; The target cold storage and cooling power consumption is input into an energy efficiency evaluation model to obtain a target energy efficiency evaluation value of the target cold storage and cooling system in the target time period; wherein the energy efficiency evaluation model is used to determine the energy efficiency evaluation value of the cold storage and cooling system based on the cold storage and cooling capacity and the cold storage and cooling power consumption of the cold storage and cooling system, and the energy efficiency evaluation value of the cold storage and cooling system is used to characterize the cold storage and energy-saving benefits of the cold storage and cooling system.

2. The method according to claim 1, characterized in that: Before inputting the target cold storage and cooling power consumption into the energy efficiency evaluation model, the method further includes: Obtaining the cold storage cooling capacity, non-cold storage cooling capacity, non-cold storage cooling power consumption, and cold storage cooling power consumption of the target cold storage cooling system in a target time period; Determining a cold storage cooling ratio according to the cold storage cooling amount and the non-cold storage cooling amount; Determining the energy efficiency of the non-cold storage cooling system according to the non-cold storage cooling capacity and the non-cold storage cooling power consumption; Determining the energy efficiency of the cold storage refrigeration system according to the cold storage cooling capacity and the cold storage refrigeration power consumption; The energy efficiency evaluation model is constructed according to the cold storage and cooling ratio, the energy efficiency of the non-cold storage and cooling system, the energy efficiency of the cold storage refrigeration system and the target cold storage and cooling power consumption.

3. The method according to claim 2, characterized in that The energy efficiency evaluation model is: ； in, represents the energy efficiency evaluation value of the cold storage cooling system; Indicates the cold storage and cooling supply ratio; Indicates the energy efficiency of the non-cold storage cooling system; Indicates the power saving rate of the valley section; Indicates the peak power saving rate; represents a first value, which is used to characterize the peak cold storage and supply capacity and the cold storage and supply capacity ; It represents the energy efficiency of the cold storage refrigeration system.

4. The method according to claim 1, characterized in that: The step of determining the peak-segment cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the peak-segment power saving rate of the target cold storage and cooling system in the target time period comprises: Obtaining the cold storage and cooling capacity of the target cold storage and cooling system in the target time period; Obtain a first value, the first value being used to characterize the peak cold storage and supply capacity and the cold storage and supply capacity ; The product of the peak-segment power saving rate, the first value and the cold storage and cooling power consumption is determined as the peak-segment cold storage and cooling power saving of the target cold storage and cooling system in the target time period.

5. The method according to claim 4, characterized in that The determining, according to the valley-stage cold storage and cooling power saving and the peak-stage cold storage and cooling power saving, the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period comprises: Obtaining the cold storage and cooling power consumption of the target cold storage and cooling system in the target time period; Determine a target power consumption rate according to the valley-segment power saving rate, the peak-segment power saving rate, and the first value; The target cold storage and cooling power consumption is determined by multiplying the target power consumption rate by the cold storage and cooling power consumption.

6. The method according to claim 1, characterized in that Before determining the valley-stage cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the valley-stage power saving rate of the target cold storage and cooling system in the target time period, the method further includes: Obtain the coal consumption saved during valley period, coal consumption saved during peak period and the current coal consumption of power plants; The ratio of the valley section coal consumption saving to the current power plant coal consumption is determined as the valley section power saving rate; The ratio of the peak-segment coal consumption savings to the current power plant coal consumption is determined as the peak-segment power saving rate.

7. An energy efficiency evaluation device for a cold storage cooling system, characterized in that: The device comprises: A first determination module is used to determine the valley section cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the valley section power saving rate of the target cold storage and cooling system in the target time period; A second determination module is used to determine the peak cold storage and cooling power saving of the target cold storage and cooling system in the target time period according to the peak power saving rate of the target cold storage and cooling system in the target time period; A third determination module is used to determine the target cold storage and cooling power consumption of the target cold storage and cooling system in the target time period according to the valley cold storage and cooling power saving and the peak cold storage and cooling power saving; An evaluation module is used to input the target cold storage and cooling power consumption into an energy efficiency evaluation model to obtain a target energy efficiency evaluation value of the target cold storage and cooling system in the target time period; wherein the energy efficiency evaluation model is used to determine the energy efficiency evaluation value of the cold storage and cooling system based on the cold storage and cooling capacity and the cold storage and cooling power consumption of the cold storage and cooling system, and the energy efficiency evaluation value of the cold storage and cooling system is used to characterize the cold storage and energy-saving benefits of the cold storage and cooling system.

8. An electronic device, characterized in that: The electronic device comprises: A processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the energy efficiency evaluation method for the cold storage and cooling system according to any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by the processor, the energy efficiency evaluation method for the cold storage and cooling system according to any one of claims 1 to 6 is implemented.

10. A computer program product, characterized in that When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the energy efficiency evaluation method for a cold storage and cooling system as described in any one of claims 1 to 6.

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