Method, device, computer equipment and storage medium for determining chiller selection scheme

Abstract

The present application relates to a method, device, computer equipment and storage medium for determining a chiller selection scheme. The method comprises: obtaining each initial chiller selection scheme, any initial chiller selection scheme comprising at least one chiller; based on each chiller included in each initial chiller selection scheme, and the typical operating condition data of each typical operating condition corresponding to each of the chillers, calculating and obtaining the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical operating condition; the typical operating condition data of the typical operating condition corresponding to the chiller comprises: the monitoring data of the chiller working under the typical operating condition, and the monitoring data of the second preset number of parts obtained by dividing; based on the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical operating condition, determining the target chiller selection scheme from each initial chiller selection scheme. The optimal chiller selection scheme can be obtained by adopting this method.

Description

Technical Field

[0001] The present application relates to the field of industrial technology, and in particular to a method, device, computer equipment and storage medium for determining a chiller selection scheme. Background Art

[0002] In the field of industrial technology, water chillers are used more and more widely. For example, in air-conditioning systems, water chillers can cool indoor hot air, forming cold air and then transporting it to indoor machines. The energy consumption of water chillers accounts for about 50% to 60% of the energy consumption of the entire air-conditioning system. Therefore, effectively reducing the energy consumption of water chillers is an important part of building energy conservation.

[0003] The energy saving of chillers involves the design and selection of chillers. In the traditional chiller selection and design process, they are all designed according to full load. However, it is impossible for chillers to always work under maximum load (100% load) in actual operation. Therefore, the traditional chiller selection scheme is prone to the problem of unreasonable matching of the number and type of chillers. Summary of the invention

[0004] Based on this, it is necessary to provide a method, device, computer equipment and storage medium for determining a chiller selection scheme that can obtain the optimal chiller selection scheme in response to the above technical problems.

[0005] A method for determining a chiller selection scheme, the method comprising:

[0006] Obtaining each initial chiller selection scheme, wherein any initial chiller selection scheme includes at least one chiller;

[0007] Based on each chiller included in each initial chiller selection scheme and the typical operating condition data of each typical operating condition corresponding to each of the chillers, the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical operating condition is calculated; the typical operating condition data of the typical operating condition corresponding to the chiller includes: the monitoring data of the chiller working under the typical operating condition, and the monitoring data of the second preset number of parts obtained by dividing;

[0008] Based on the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical operating condition, a target chiller selection scheme is determined from each of the initial chiller selection schemes.

[0009] In one embodiment, a method of obtaining typical operating condition data corresponding to a chiller includes:

[0010] Acquire monitoring data of the chiller operating under the typical working conditions, the monitoring data including: associated cooling load, chilled water inlet temperature and cooling water return temperature;

[0011] Performing arithmetic division of the monitoring data in the cooling load dimension to obtain a first preset number of monitoring data after the arithmetic division;

[0012] In the chilled water inlet temperature dimension and the cooling water return temperature dimension, the first preset number of monitoring data are divided into data arithmetic progressions to obtain the second preset number of monitoring data after the data arithmetic progressions;

[0013] Based on the second preset number of monitoring data, typical operating data of the chiller is determined.

[0014] In one embodiment, performing arithmetic division on the monitoring data in the cooling load dimension to obtain a first preset number of monitoring data after arithmetic division includes:

[0015] According to the preset cooling load arithmetic difference values, the monitoring data is divided into data arithmetic differences to obtain a first preset number of monitoring data after the data arithmetic difference division.

[0016] In one embodiment, the monitoring data is divided into arithmetic differences according to preset cooling load arithmetic differences, and before obtaining the first preset number of monitoring data after the data arithmetic differences, the step of:

[0017] The monitoring data whose cooling load is less than the minimum cooling load threshold is removed from the monitoring data.

[0018] In one embodiment, performing data arithmetic division on the monitoring data according to preset cooling load arithmetic difference values ​​to obtain a first preset number of monitoring data after data arithmetic division includes:

[0019] According to preset cooling load equal difference values, the monitoring data is divided into data equal difference to obtain a third preset number of monitoring data;

[0020] The monitoring data of the fourth preset number of shares having a predetermined proportion of the minimum cooling load is removed from the monitoring data of the third preset number of shares, so as to obtain the monitoring data of the first preset number of shares after the data is arithmetically divided.

[0021] In one embodiment, in the chilled water inlet temperature dimension and the cooling water return temperature dimension, the first preset number of monitoring data are divided into data arithmetic differences to obtain the second preset number of monitoring data after the data arithmetic differences, including:

[0022] According to the preset refrigeration water inlet temperature differential value, any one of the first preset number of monitoring data is divided into data arithmetic differences to obtain a fifth preset number of monitoring data;

[0023] According to the preset cooling return water temperature differential value, performing data arithmetic division on any one of the fifth preset number of monitoring data to obtain the second preset number of monitoring data after the data arithmetic division;

[0024] In one embodiment, in the chilled water inlet temperature dimension and the cooling water return temperature dimension, performing data arithmetic division on the first preset number of monitoring data to obtain the second preset number of monitoring data after the data arithmetic division includes: performing data arithmetic division on any one of the first preset number of monitoring data according to preset cooling water return temperature equal difference values ​​to obtain the sixth preset number of monitoring data;

[0025] According to the preset refrigeration water inlet temperature differential value, any one of the sixth preset number of monitoring data is divided into data arithmetic differences to obtain the second preset number of monitoring data after the data arithmetic difference division.

[0026] In one embodiment, determining the typical operating condition data of the chiller based on the second preset number of monitoring data includes:

[0027] Determining the frequency of any one of the second preset number of monitoring data, wherein the frequency represents the number of times the monitoring data appears in the process of obtaining the second preset number of monitoring data;

[0028] The typical operating condition data of the typical operating condition corresponding to the chiller further includes: the frequency of any one of the second preset number of monitoring data.

[0029] In one embodiment, the determining the typical operating condition data of the chiller based on the second preset number of monitoring data further includes:

[0030] If the frequency of any one of the second preset number of monitoring data is less than a predetermined frequency threshold, the monitoring data is discarded.

[0031] In one embodiment, the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical operating condition is calculated based on each chiller included in each initial chiller selection scheme and typical operating condition data of each typical operating condition corresponding to each chiller, including:

[0032] For any initial chiller selection and any typical operating condition, perform the following process:

[0033] Determine the sub-energy efficiency ratio corresponding to any one of the second preset number of monitoring data of each chiller in the initial chiller selection scheme under the typical operating condition;

[0034] According to the sub-energy efficiency ratios corresponding to the second preset number of monitoring data of each chiller, the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition is obtained.

[0035] In one of the embodiments, the typical operating condition data of the typical operating condition corresponding to the chiller further includes: the frequency of any one of the second preset number of monitoring data;

[0036] According to the sub-energy efficiency ratios corresponding to the second preset number of monitoring data of each chiller, the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical working condition is obtained, including:

[0037] The sum of the unit energy efficiency ratios of the chillers in the initial chiller selection scheme under the typical working condition is determined as the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical working condition;

[0038] The unit energy efficiency ratio of the chiller under the typical operating conditions is the sum of the energy efficiency ratio components corresponding to any one of the second preset number of monitoring data of the chiller under the typical operating conditions, and the energy efficiency ratio component is the product of the sub-energy efficiency ratio of the monitoring data and the frequency of the monitoring data, and the quotient of the sum of the frequencies of the second preset number of monitoring data.

[0039] In one embodiment, the step of determining a target chiller selection scheme from each of the initial chiller selection schemes based on the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical operating condition includes:

[0040] The initial chiller selection scheme with the largest comprehensive energy efficiency ratio is determined as the target chiller selection scheme.

[0041] A device for determining a chiller selection scheme, the device comprising:

[0042] An initial chiller selection scheme determination module is used to obtain each initial chiller selection scheme, and any initial chiller selection scheme includes at least one chiller;

[0043] A comprehensive energy efficiency ratio acquisition module is used to calculate and obtain the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical operating condition based on each chiller included in each initial chiller selection scheme and the typical operating condition data of each typical operating condition corresponding to each chiller; the typical operating condition data of the typical operating condition corresponding to the chiller includes: monitoring data of the chiller working under the typical operating condition, and a second preset number of monitoring data obtained by dividing;

[0044] The target chiller selection scheme determining module is used to determine the target chiller selection scheme from each of the initial chiller selection schemes based on the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical working condition.

[0045] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned method for determining a chiller selection scheme when executing the computer program.

[0046] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the above-mentioned method for determining a chiller selection scheme.

[0047] The above-mentioned chiller selection scheme determination method, device, computer equipment and storage medium obtain each initial chiller selection scheme, wherein any initial chiller selection scheme includes at least one chiller, and calculate the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical working condition, so that the target chiller selection scheme can be determined from each initial chiller selection scheme according to the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical working condition, wherein the typical working condition data of the typical working condition corresponding to the chiller includes: the monitoring data of the chiller working under the typical working condition, and the second preset number of monitoring data obtained by dividing. Therefore, the optimal chiller selection scheme can be obtained by the above-mentioned method. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 An application environment diagram of a method for determining a chiller selection scheme in one embodiment;

[0049] Figure 2 A schematic diagram of a flow chart of a method for determining a chiller selection scheme in one embodiment;

[0050] Figure 3 A schematic diagram of a flow chart of a method for determining a chiller selection scheme in one embodiment;

[0051] Figure 4 A schematic flow chart of a method for determining a chiller selection scheme in another embodiment;

[0052] Figure 5 A structural block diagram of a device for determining a chiller selection scheme in one embodiment;

[0053] Figure 6 is an internal structure diagram of a computer device in one embodiment;

[0054] Figure 7 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0056] The method for determining the chiller selection scheme provided in this application can be applied to Figure 1 In the application environment shown, the application environment may involve only the terminal 102, or only the server 104, or may involve a system of both the terminal 102 and the server 104, wherein the terminal 102 communicates with the server 104 via a network. Specifically, the terminal 102 or the server 104 completes a method for determining a chiller selection scheme, the method comprising the terminal 102 obtaining each initial chiller selection scheme, any initial chiller selection scheme comprising at least one chiller; based on each chiller included in each initial chiller selection scheme, and typical operating condition data of each typical operating condition corresponding to each of the chillers, calculating and obtaining a comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical operating condition; the typical operating condition data of the typical operating condition corresponding to the chiller comprising: a second preset number of monitoring data obtained by dividing the monitoring data of the chiller working under the typical operating condition; based on the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical operating condition, determining a target chiller selection scheme from each of the initial chiller selection schemes. When the terminal 102 completes the method for determining the chiller selection scheme, the terminal 102 can directly obtain each initial chiller selection scheme, or can obtain it from the server 104 or other databases or servers. The typical operating condition data of each typical operating condition corresponding to each chiller can be obtained by dividing the monitoring data of the chiller working under the typical operating condition by the terminal 102, or by dividing the monitoring data of the chiller working under the typical operating condition by the server 104.

[0057] When the server 104 completes the method for determining the chiller selection scheme, the server 104 can obtain each initial chiller selection scheme from the terminal 102 or other databases or other servers. The terminal 102 can be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, and portable wearable devices, and the server 104 can be implemented as an independent server or a server cluster consisting of multiple servers.

[0058] In one embodiment, Figure 2 As shown, a method for determining the type selection scheme of a chiller is provided. Figure 1 The terminal in is used as an example to illustrate, including the following steps:

[0059] Step S202, obtaining each initial chiller selection scheme, where any initial chiller selection scheme includes at least one chiller.

[0060] In one embodiment, the initial chiller selection plan consists of at least one chiller. When setting the initial chiller plan, a chiller selection software can be used to combine the rated cooling capacity of the chiller, the design load of the project, etc. to obtain an initial chiller selection plan suitable for different engineering projects.

[0061] In one of the embodiments, when any initial chiller selection scheme includes two chillers, the types of the two chillers in the initial chiller selection scheme may be the same or different.

[0062] Step S204, based on each chiller included in each initial chiller selection scheme, and the typical operating condition data of each typical operating condition corresponding to each of the chillers, calculate and obtain the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical operating condition; the typical operating condition data of the typical operating condition corresponding to the chiller include: the monitoring data of the chiller working under the typical operating condition, and the second preset number of monitoring data obtained by dividing.

[0063] In one of the embodiments, any initial chiller selection scheme may include only one chiller or multiple chillers, and each chiller may correspond to multiple typical operating conditions, wherein the typical operating condition data of the typical operating condition corresponding to the chiller refers to the monitoring data of the chiller working under any typical operating condition, and the second preset number of monitoring data are obtained by dividing the monitoring data of the chiller working under any typical operating condition, and the comprehensive energy efficiency ratio of the initial chiller selection scheme under each typical operating condition refers to the energy conversion efficiency of the initial chiller selection scheme under each typical operating condition.

[0064] In one of the embodiments, any initial chiller selection scheme includes chiller A and chiller B. When calculating the comprehensive energy efficiency ratio of the initial chiller selection scheme, the comprehensive energy efficiency ratio of the initial chiller selection scheme under typical operating condition 1 and typical operating condition 2 can be obtained based on the typical operating condition data of chiller A under any typical operating condition 1 and the typical operating condition data of chiller B under any typical operating condition 2.

[0065] Step S206: determining a target chiller selection scheme from each of the initial chiller selection schemes based on the comprehensive energy efficiency ratios of each of the initial chiller selection schemes under each typical operating condition.

[0066] In one of the embodiments, the target chiller selection scheme refers to a preferred scheme selected from the initial chiller selection schemes. After the comprehensive energy efficiency ratios of the initial chiller selection schemes under various typical operating conditions are calculated, the target chiller selection scheme can be determined from the initial chiller selection schemes based on the comprehensive energy efficiency ratios of the initial chiller selection schemes under various typical operating conditions.

[0067] In the above-mentioned method for determining the chiller selection scheme, by obtaining each initial chiller selection scheme, wherein any initial chiller selection scheme includes at least one chiller, and calculating the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical working condition, the target chiller selection scheme can be determined from each initial chiller selection scheme according to the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical working condition, wherein the typical working condition data of the typical working condition corresponding to the chiller includes: the monitoring data of the chiller working under the typical working condition, and the second preset number of monitoring data obtained by dividing. Thus, the optimal chiller selection scheme can be obtained by the above-mentioned method.

[0068] In one embodiment, a method of obtaining typical operating condition data corresponding to a chiller includes:

[0069] Acquire monitoring data of the chiller operating under the typical working conditions, the monitoring data including: associated cooling load, chilled water inlet temperature and cooling water return temperature;

[0070] Performing arithmetic division of the monitoring data in the cooling load dimension to obtain a first preset number of monitoring data after the arithmetic division;

[0071] In the chilled water inlet temperature dimension and the cooling water return temperature dimension, the first preset number of monitoring data are divided into data arithmetic progressions to obtain the second preset number of monitoring data after the data arithmetic progressions;

[0072] Based on the second preset number of monitoring data, typical operating data of the chiller is determined.

[0073] In one of the embodiments, the monitoring data of the chiller under typical operating conditions can be measured by a heat meter installed on the refrigeration main pipe. The cooling load dimension refers to dividing the monitoring data based on the cooling load in the monitoring data. The chilled water inlet temperature dimension refers to dividing the monitoring data based on the chilled water inlet temperature in the monitoring data. The cooling return water temperature dimension refers to dividing the monitoring data based on the cooling return water temperature in the monitoring data.

[0074] In one embodiment, the monitoring data includes associated cooling load, chilled water inlet temperature and cooling return water temperature. The monitoring data is first divided in the cooling load dimension to obtain a first preset number of monitoring data. Then, the first preset number of monitoring data is divided in the chilled water inlet temperature dimension and the cooling return water temperature dimension to obtain a second preset number of monitoring data. Based on the second preset number of monitoring data, the typical operating condition data of the chiller is determined. Thus, the typical operating condition data of the chiller can be determined by the above method.

[0075] In one embodiment, performing arithmetic division on the monitoring data in the cooling load dimension to obtain a first preset number of monitoring data after arithmetic division includes:

[0076] According to the preset cooling load arithmetic difference values, the monitoring data is divided into data arithmetic differences to obtain a first preset number of monitoring data after the data arithmetic difference division.

[0077] In one of the embodiments, the preset cooling load differential value refers to a preset cooling load differential value. When the monitoring data is divided into differential values, it can be divided according to the preset cooling load differential value. For example, the cooling load in the monitoring data can be data with a value in the range of 1-100, and the preset cooling load differential value can be 10. Then the monitoring data with a cooling load value in the range of 1-10 can be divided into one group, and the monitoring data with a cooling load value in the range of 10-20 can be divided into one group, and so on, until all the monitoring data are divided. The cooling load differential value can also be 20, then the monitoring data with a cooling load value in the range of 1-20 can be divided into one group, and the monitoring data with a cooling load value in the range of 20-40 can be divided into one group. The cooling load differential value can be adjusted according to the actual situation. Thus, the monitoring data after cooling load differential division can be obtained by the above method.

[0078] In one embodiment, the monitoring data is divided into data arithmetic differences according to preset cooling load arithmetic differences, and before obtaining the first preset number of monitoring data after the data arithmetic differences, the method further includes:

[0079] The monitoring data whose cooling load is less than the minimum cooling load threshold is removed from the monitoring data.

[0080] In one embodiment, the minimum cooling load threshold refers to the threshold of the cooling load to be removed. For example, the cooling load value range in the monitoring data is 1-100, and the minimum cooling load threshold can be set to 20, then in the monitoring data, all cooling loads with values ​​less than 20 need to be removed. The minimum cooling load threshold can also be set to 30, then in the monitoring data, all cooling loads with values ​​less than 30 need to be removed. The minimum cooling load threshold can be adjusted according to actual conditions. Thus, part of the monitoring data can be removed by the above method.

[0081] In one embodiment, performing data arithmetic division on the monitoring data according to preset cooling load arithmetic difference values ​​to obtain a first preset number of monitoring data after data arithmetic division includes:

[0082] According to preset cooling load equal difference values, the monitoring data is divided into data equal difference to obtain a third preset number of monitoring data;

[0083] The monitoring data of the fourth preset number of shares having a predetermined proportion of the minimum cooling load is removed from the monitoring data of the third preset number of shares, so as to obtain the monitoring data of the first preset number of shares after the data is arithmetically divided.

[0084] In one embodiment, the first preset number of monitoring data can be obtained from the third preset number of monitoring data and the fourth preset number of monitoring data. Specifically, the third preset number of monitoring data refers to the monitoring data obtained by performing arithmetic division on the monitoring data according to the preset cooling load arithmetic difference values, and the fourth preset number of monitoring data is obtained according to the predetermined number of proportions of the minimum cooling load. The first preset number of monitoring data is obtained by removing the fourth preset number of monitoring data of the predetermined number of proportions of the minimum cooling load from the third preset number of monitoring data. Thus, the first preset number of monitoring data can be obtained by the above method.

[0085] In one embodiment, in the chilled water inlet temperature dimension and the cooling water return temperature dimension, the first preset number of monitoring data are divided into data arithmetic differences to obtain the second preset number of monitoring data after the data arithmetic differences, including:

[0086] According to the preset refrigeration water inlet temperature differential value, any one of the first preset number of monitoring data is divided into data arithmetic differences to obtain a fifth preset number of monitoring data;

[0087] According to the preset cooling return water temperature differential value, any one of the fifth preset number of monitoring data is divided into data arithmetic differences to obtain the second preset number of monitoring data after the data arithmetic difference division.

[0088] In one of the embodiments, the preset chilled water inlet temperature differential value refers to a preset chilled water inlet temperature differential value. When any one of the first preset number of monitoring data is divided into arithmetic progressions, it can be divided according to the preset chilled water inlet temperature differential value. For example, the chilled water inlet temperature of any one of the first preset number of monitoring data can be temperature data with a value in the range of 10°-40°, and the chilled water inlet temperature differential value can be 5. Then, for any one of the first preset number of monitoring data, the monitoring data with a chilled water inlet temperature value in the range of 10°-15° can be divided into a group, and the monitoring data with a chilled water inlet temperature value in the range of 15°-20° can be divided into a group, and so on, until any one of the monitoring data is divided, and the preset chilled water inlet temperature differential value can be adjusted according to actual conditions.

[0089] In one embodiment, the preset cooling return water temperature differential refers to the preset cooling return water temperature differential. After obtaining the fifth preset number of monitoring data, any one of the fifth preset number of monitoring data can be divided into arithmetic differences according to the preset cooling return water temperature differential. For example, the cooling return water temperature of any one of the fifth preset number of monitoring data can be temperature data with a value in the range of 15°-55°, and the cooling return water temperature differential can be 10. Then, any one of the fifth preset number of monitoring data, the monitoring data with a value in the range of 15°-25° of the cooling return water temperature can be divided into a group, and the monitoring data with a value in the range of 25°-35° of the cooling return water temperature can be divided into a group, and so on, until any one of the monitoring data is divided, the cooling return water temperature differential can be adjusted according to the actual situation. According to the preset cooling return water temperature differential, any one of the fifth preset number of monitoring data is divided into arithmetic differences to obtain the second preset number of monitoring data. Thus, the second preset number of monitoring data can be obtained by the above method.

[0090] In one embodiment, the first preset number of monitoring data is divided into data in the chilled water inlet temperature dimension and the cooling water return temperature dimension to obtain the second preset number of monitoring data, including:

[0091] According to the preset cooling return water temperature differential value, performing data arithmetic division on any one of the first preset number of monitoring data to obtain a sixth preset number of monitoring data;

[0092] According to the preset refrigeration water inlet temperature differential value, any one of the sixth preset number of monitoring data is divided into data arithmetic differences to obtain the second preset number of monitoring data after the data arithmetic difference division.

[0093] In one embodiment, when performing arithmetic division on any one of the first preset number of monitoring data, the first preset number of monitoring data can be firstly performed arithmetic division according to preset cooling return water temperature and other difference values ​​to obtain the sixth preset number of monitoring data, and then the sixth preset number of monitoring data can be performed arithmetic division according to preset freezing inlet water temperature and other difference values ​​to obtain the second preset number of monitoring data. Thus, the second preset number of monitoring data can be obtained by the above method.

[0094] In one embodiment, reference Figure 3 As shown, it is a monitoring data division flow chart of a method for determining a chiller selection scheme in a specific embodiment:

[0095] The monitoring data of the chiller under any typical working condition can be obtained through the heat meter installed on the refrigeration main pipe of the chiller and stored in the database of the cloud platform, wherein the monitoring data includes the associated cooling load, refrigeration water inlet temperature and cooling return water temperature.

[0096] Specifically, in this embodiment, the monitoring data of a chiller working under any typical working condition is taken as an example to illustrate. By acquiring the monitoring data of the chiller working under typical working conditions stored in the database of the cloud platform, the monitoring data is divided to obtain the typical working condition data of the typical working condition corresponding to the chiller.

[0097] After obtaining the monitoring data, the monitoring data can be divided in the cooling load dimension to obtain N copies of monitoring data. By removing a predetermined proportion of the monitoring data with the minimum cooling load from the N copies of monitoring data, where the predetermined proportion can be K, N*K copies of monitoring data can be removed, and NN*K copies of data can be used as the first preset proportion of monitoring data.

[0098] To obtain a first preset number of monitoring data, the first preset number of monitoring data can be divided in the dimensions of chilled water inlet temperature and cooling return water temperature to obtain a second preset number of monitoring data, and the second preset number of monitoring data can be used as typical operating condition data. Specifically, any one of the first preset number of monitoring data can be divided in an arithmetical manner according to preset chilled water inlet temperature differences to obtain the Qth portion of monitoring data; any one of the Q portions of monitoring data can be divided in an arithmetical manner according to preset cooling return water temperature differences to obtain Z portions of monitoring data, and the Z portions of data can be used as the second preset number of monitoring data.

[0099] In one embodiment, determining the typical operating condition data of the chiller based on the second preset number of monitoring data includes:

[0100] Determining the frequency of any one of the second preset number of monitoring data, wherein the frequency represents the number of times the monitoring data appears in the process of obtaining the second preset number of monitoring data;

[0101] In one embodiment, after obtaining the second preset number of monitoring data, the frequency of any one of the second preset number of monitoring data can be determined, wherein the frequency represents the number of times the monitoring data appears in the process of obtaining the second preset number of monitoring data. Specifically, when determining the frequency of any one of the second preset number of monitoring data, it is necessary to combine the three processes of frequency analysis in the cold load dimension, frequency analysis in the chilled water inlet temperature dimension, and frequency analysis in the cooling return water temperature dimension to determine the number of times the monitoring data appears. Thus, the frequency of any one of the second preset number of monitoring data can be determined by the above method.

[0102] In one embodiment, the determining the typical operating condition data of the chiller based on the second preset number of monitoring data further includes:

[0103] If the frequency of any one of the second preset number of monitoring data is less than a predetermined frequency threshold, the monitoring data is discarded.

[0104] In one embodiment, after determining the frequency of each monitoring data in the second preset number, when the frequency of any monitoring data in the second preset number is less than a predetermined frequency threshold, the monitoring data is removed. Thus, the above method can remove each monitoring data in the second preset number of monitoring data that does not meet the frequency requirement.

[0105] In one embodiment, the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical operating condition is calculated based on each chiller included in each initial chiller selection scheme and typical operating condition data of each typical operating condition corresponding to each chiller, including:

[0106] For any initial chiller selection and any typical operating condition, perform the following process:

[0107] Determine the sub-energy efficiency ratio corresponding to any one of the second preset number of monitoring data of each chiller in the initial chiller selection scheme under the typical operating condition;

[0108] According to the sub-energy efficiency ratios corresponding to the second preset number of monitoring data of each chiller, the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition is obtained.

[0109] In one of the embodiments, the sub-energy efficiency ratio refers to the energy conversion efficiency corresponding to any one of the monitoring data in the second preset number of monitoring data. For any initial chiller selection scheme and any typical operating condition, the following processing can be performed. Specifically, the sub-energy efficiency ratio corresponding to any one of the monitoring data in the second preset number of each chiller in the initial chiller selection scheme under the typical operating condition can be determined, and the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition can be obtained according to the sub-energy efficiency ratio corresponding to the monitoring data of the second preset number of each chiller. Therefore, the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition can be obtained by the above method.

[0110] In one of the embodiments, the typical operating condition data of the typical operating condition corresponding to the chiller further includes: the frequency of any one of the second preset number of monitoring data;

[0111] According to the sub-energy efficiency ratios corresponding to the second preset number of monitoring data of each chiller, the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical working condition is obtained, including:

[0112] The sum of the unit energy efficiency ratios of the chillers in the initial chiller selection scheme under the typical working condition is determined as the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical working condition;

[0113] The unit energy efficiency ratio of the chiller under the typical operating conditions is the sum of the energy efficiency ratio components corresponding to any one of the second preset number of monitoring data of the chiller under the typical operating conditions, and the energy efficiency ratio component is the product of the sub-energy efficiency ratio of the monitoring data and the frequency of the monitoring data, and the quotient of the sum of the frequencies of the second preset number of monitoring data.

[0114] In one embodiment, refer to the following formula:

[0115]

[0116] Among them, the comprehensive COP in the formula represents the comprehensive energy efficiency ratio of the initial chiller selection scheme under any typical operating condition, i represents the typical operating condition, j represents the type of chiller, and specifically, the initial chiller scheme may include multiple chillers, each of which may correspond to multiple corresponding typical operating condition data. For the typical operating condition data of each chiller in the initial chiller scheme under any typical operating condition, the comprehensive energy efficiency ratio of the initial chiller scheme is obtained.

[0117] Specifically, the typical operating condition data of the typical operating condition corresponding to the chiller includes the monitoring data of the chiller working under the typical operating condition, which is divided into a second preset number of monitoring data. Any monitoring data in the second preset number of monitoring data corresponds to a corresponding frequency and a sub-energy efficiency ratio. The product of the sub-energy efficiency ratio of any monitoring data and the frequency of the monitoring data and the quotient of the sum of the frequencies of the second preset number of monitoring data can be used as the energy efficiency ratio component corresponding to any monitoring data. The energy efficiency ratio components corresponding to any monitoring data are added to obtain the sum of the energy efficiency ratio components corresponding to the second preset number of monitoring data, and the sum of the energy efficiency ratio components is used as the unit energy efficiency ratio of the chiller in the initial chiller selection scheme under the typical operating condition. Finally, the sum of the unit energy efficiency ratios of each chiller in the initial chiller selection scheme under the typical operating condition is used as the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition.

[0118] In one embodiment, the step of determining a target chiller selection scheme from each of the initial chiller selection schemes based on the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical operating condition includes:

[0119] The initial chiller selection scheme with the largest comprehensive energy efficiency ratio is determined as the target chiller selection scheme.

[0120] In one embodiment, after calculating the comprehensive energy efficiency ratios of the initial chiller selection schemes under various typical working conditions, the initial chiller selection scheme with the largest comprehensive energy efficiency ratio can be determined as the target chiller selection scheme. Thus, the target chiller selection scheme can be determined by the above method.

[0121] In one embodiment, if Figure 4 As shown, it is a schematic diagram of a flow chart of a method for determining a chiller selection scheme in a specific embodiment:

[0122] Among them, this embodiment is explained by taking the execution subject as the terminal as an example. The initial chiller selection plan software is running on the terminal. The initial chiller selection plan can be determined through the initial chiller selection plan software. Optionally, the initial chiller selection plan can also be pre-stored in the terminal and can be directly obtained when used.

[0123] First, the typical working condition screening module can be used to divide the monitoring data of the chiller under any typical working condition to obtain the typical working condition data. Specifically, taking the typical working condition data of a chiller under any typical working condition as an example, the monitoring data of the chiller under the typical working condition is divided to obtain the typical working condition data of the typical working condition of the chiller.

[0124] Specifically, the monitoring data includes associated cooling load, chilled water inlet temperature and cooling return water temperature. In the typical operating condition screening module, the monitoring data is first divided in the cooling load dimension. Specifically, the monitoring data can be divided into equal-difference values ​​according to preset cooling load equal-difference values ​​to obtain a third preset number of monitoring data. The fourth preset number of monitoring data with a predetermined proportion of the minimum cooling load in the third preset number of monitoring data is removed to obtain the first preset number of monitoring data.

[0125] After obtaining the first preset number of monitoring data, in the dimensions of chilled water inlet temperature and cooling return water temperature, according to the preset chilled water inlet temperature difference, any one of the first preset number of monitoring data is divided into an arithmetic progression to obtain the fifth preset number of monitoring data, and according to the preset cooling return water temperature difference, any one of the fifth preset number of monitoring data is divided into an arithmetic progression to obtain the second preset number of monitoring data.

[0126] After obtaining the second preset number of monitoring data, the frequency of any one of the second preset number of monitoring data can be determined, wherein the frequency represents the number of times the monitoring data appears in the process of obtaining the second preset number of monitoring data. Specifically, when determining the frequency of any one of the second preset number of monitoring data, it is necessary to combine three processes, namely, frequency analysis in the cooling load dimension, frequency analysis in the chilled water inlet temperature dimension, and frequency analysis in the cooling return water temperature dimension, to determine the number of times the monitoring data appears.

[0127] After determining the frequency of each monitoring data in the second preset number, when the frequency of any monitoring data in the second preset number is less than a predetermined frequency threshold, the monitoring data is discarded, so that typical operating condition data can be obtained.

[0128] After obtaining the typical operating condition data, the sub-energy efficiency ratio corresponding to any one of the second preset number of monitoring data of the chiller under the typical operating condition can be determined; based on the sub-energy efficiency ratio corresponding to the second preset number of monitoring data of each chiller, the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition is obtained. Specifically, the sum of the unit energy efficiency ratios of the chillers under the typical operating condition is determined as the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition. The unit energy efficiency ratio of the chiller under the typical operating condition is the sum of the energy efficiency ratio components corresponding to any one of the second preset number of monitoring data of the chiller under the typical operating condition. The energy efficiency ratio component is the product of the sub-energy efficiency ratio of the monitoring data and the frequency of the monitoring data, and the quotient of the sum of the frequencies of the second preset number of monitoring data.

[0129] Finally, based on the comprehensive energy efficiency ratios of each initial chiller selection scheme under each typical operating condition, the initial chiller selection scheme with the largest comprehensive energy efficiency ratio is determined as the target chiller selection scheme.

[0130] It should be understood that although Figure 2 , 4 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 2 , 4 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0131] In one embodiment, Figure 5 As shown, a device for determining a chiller selection scheme is provided, comprising: an initial chiller selection scheme determining module 502, a comprehensive energy efficiency ratio obtaining module 504 and a target chiller selection scheme determining module 506, wherein:

[0132] The initial chiller selection scheme determining module 502 is used to obtain each initial chiller selection scheme, and any initial chiller selection scheme includes at least one chiller.

[0133] The comprehensive energy efficiency ratio acquisition module 504 is used to calculate the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical operating condition based on each chiller included in each initial chiller selection scheme and the typical operating condition data of each typical operating condition corresponding to each of the chillers; the typical operating condition data of the typical operating condition corresponding to the chiller includes: the monitoring data of the chiller working under the typical operating condition, and the second preset number of monitoring data obtained by dividing it.

[0134] The target chiller selection scheme determining module 506 is used to determine a target chiller selection scheme from each of the initial chiller selection schemes based on the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical working condition.

[0135] In one embodiment, the comprehensive energy efficiency ratio acquisition module includes:

[0136] A typical operating condition data determination module is used to obtain monitoring data of the chiller operating under the typical operating conditions, the monitoring data including: associated cooling load, chilled water inlet temperature and cooling return water temperature; divide the monitoring data in the cooling load dimension to obtain a first preset number of monitoring data; divide the first preset number of monitoring data arithmetic progression in the chilled water inlet temperature dimension and the cooling return water temperature dimension to obtain a second preset number of monitoring data after the arithmetic progression; determine the typical operating condition data of the chiller based on the second preset number of monitoring data.

[0137] In one of the embodiments, the typical operating condition data determination module is used to perform data arithmetic division on the monitoring data according to preset cooling load arithmetic difference values ​​to obtain a first preset number of monitoring data after the data arithmetic division.

[0138] In one of the embodiments, the typical operating condition data determination module is used to remove the monitoring data whose cooling load is less than the minimum cooling load threshold value from the monitoring data.

[0139] In one embodiment, the typical operating condition data determination module is used to divide the monitoring data into data arithmetic differences according to preset cooling load arithmetic differences to obtain a third preset number of monitoring data;

[0140] The monitoring data of the fourth preset number of shares having a predetermined proportion of the minimum cooling load is removed from the monitoring data of the third preset number of shares, so as to obtain the monitoring data of the first preset number of shares after the data is arithmetically divided.

[0141] In one embodiment, the typical operating condition data determination module is used to perform data arithmetic division on any one of the first preset number of monitoring data according to preset differential values ​​such as the chilled water inlet temperature, to obtain monitoring data of the fifth preset number of monitoring data; perform data arithmetic division on any one of the fifth preset number of monitoring data according to preset differential values ​​such as the cooling return water temperature, to obtain monitoring data of the second preset number of monitoring data after the data arithmetic division.

[0142] In one embodiment, the typical operating condition data determination module is used to perform data arithmetic division on any one of the first preset number of monitoring data according to preset cooling return water temperature and other differential values ​​to obtain a sixth preset number of monitoring data; perform data arithmetic division on any one of the sixth preset number of monitoring data according to preset freezing inlet water temperature and other differential values ​​to obtain a second preset number of monitoring data after data arithmetic division.

[0143] In one embodiment, the typical operating condition data determination module is used to determine the frequency of any one of the monitoring data in the second preset number, and the frequency represents the number of times the monitoring data appears in the process of obtaining the second preset number; the typical operating condition data of the typical operating condition corresponding to the chiller also includes: the frequency of any one of the monitoring data in the second preset number.

[0144] In one of the embodiments, the typical operating condition data determination module is used to eliminate any monitoring data in the second preset number if the frequency of the monitoring data is less than a predetermined frequency threshold.

[0145] In one of the embodiments, a comprehensive energy efficiency ratio acquisition module is used to perform the following processing for any initial chiller selection scheme and any typical operating condition: determine the sub-energy efficiency ratio corresponding to any one of the second preset number of monitoring data of each chiller in the initial chiller selection scheme under the typical operating condition; obtain the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition based on the sub-energy efficiency ratio corresponding to the second preset number of monitoring data of each chiller.

[0146] In one of the embodiments, a comprehensive energy efficiency ratio acquisition module is used to determine the sum of the unit energy efficiency ratios of each chiller in the initial chiller selection scheme under the typical operating conditions as the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating conditions; the unit energy efficiency ratio of the chiller under the typical operating conditions is the sum of energy efficiency ratio components corresponding to any one of the second preset number of monitoring data of the chiller under the typical operating conditions, and the energy efficiency ratio component is the product of the sub-energy efficiency ratio of the monitoring data and the frequency of the monitoring data, and the quotient of the sum of the frequencies of the second preset number of monitoring data.

[0147] In one of the embodiments, the target chiller selection scheme determining module is used to determine the initial chiller selection scheme with the largest comprehensive energy efficiency ratio as the target chiller selection scheme.

[0148] The specific definition of the device for determining the model selection scheme of a chiller can be found in the definition of the method for determining the model selection scheme of a chiller above, which will not be repeated here. Each module in the above-mentioned device for determining the model selection scheme of a chiller can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0149] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 6As shown. The computer device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store typical operating condition data. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for determining a chiller selection scheme is implemented.

[0150] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 7 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for determining a chiller selection scheme is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0151] Those skilled in the art will understand that Figure 6 , 7 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0152] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps of the above-mentioned chiller selection determination method when executing the computer program.

[0153] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned chiller selection determination method are implemented.

[0154] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0155] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0156] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for determining a chiller selection scheme, characterized in that: The method comprises: Obtaining each initial chiller selection scheme, wherein any initial chiller selection scheme includes at least one chiller; Based on each chiller included in each initial chiller selection scheme and the typical operating condition data of each typical operating condition corresponding to each of the chillers, the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical operating condition is calculated; the typical operating condition data of the typical operating condition corresponding to the chiller includes: the monitoring data of the chiller working under the typical operating condition, and the monitoring data of the second preset number of parts obtained by dividing; Determining a target chiller selection scheme from each of the initial chiller selection schemes based on the comprehensive energy efficiency ratios of each of the initial chiller selection schemes under each typical operating condition; The comprehensive energy efficiency ratio of each initial water chiller selection scheme under each typical working condition is calculated based on each water chiller included in each initial water chiller selection scheme and typical working condition data of each typical working condition corresponding to each water chiller, including: For any initial chiller selection and any typical operating condition, perform the following process: Determine the sub-energy efficiency ratio corresponding to any one of the second preset number of monitoring data of each chiller in the initial chiller selection scheme under the typical operating condition; Obtaining a comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition according to the sub-energy efficiency ratios corresponding to the second preset number of monitoring data of each chiller; The typical operating condition data of the typical operating condition corresponding to the chiller further includes: the frequency of any one of the second preset number of monitoring data; According to the sub-energy efficiency ratios corresponding to the second preset number of monitoring data of each chiller, the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical working condition is obtained, including: The sum of the unit energy efficiency ratios of the chillers in the initial chiller selection scheme under the typical working condition is determined as the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical working condition; The unit energy efficiency ratio of the chiller under the typical operating conditions is the sum of the energy efficiency ratio components corresponding to any one of the second preset number of monitoring data of the chiller under the typical operating conditions, and the energy efficiency ratio component is the product of the sub-energy efficiency ratio of the monitoring data and the frequency of the monitoring data, and the quotient of the sum of the frequencies of the second preset number of monitoring data.

2. The method according to claim 1, characterized in that Methods for obtaining typical operating condition data corresponding to the chiller include: Acquire monitoring data of the chiller operating under the typical working conditions, the monitoring data including: associated cooling load, chilled water inlet temperature and cooling water return temperature; Performing arithmetic division of the monitoring data in the cooling load dimension to obtain a first preset number of monitoring data after the arithmetic division; In the chilled water inlet temperature dimension and the cooling water return temperature dimension, the first preset number of monitoring data are divided into data arithmetic progressions to obtain the second preset number of monitoring data after the data arithmetic progressions; Based on the second preset number of monitoring data, typical operating data of the chiller is determined.

3. The method according to claim 2, characterized in that The step of performing arithmetic division on the monitoring data in the cooling load dimension to obtain a first preset number of monitoring data after the arithmetic division includes: According to the preset cooling load arithmetic difference values, the monitoring data is divided into data arithmetic differences to obtain a first preset number of monitoring data after the data arithmetic difference division.

4. The method according to claim 3, characterized in that: According to the preset cooling load arithmetic difference values, the monitoring data is divided into data arithmetic differences, and before obtaining the first preset number of monitoring data after the data arithmetic difference division, the step of: The monitoring data whose cooling load is less than the minimum cooling load threshold is removed from the monitoring data.

5. The method according to claim 3, characterized in that: The step of performing arithmetic division of the monitoring data according to preset cooling load arithmetic difference values ​​to obtain a first preset number of monitoring data after the data arithmetic division comprises: According to preset cooling load equal difference values, the monitoring data is divided into data equal difference to obtain a third preset number of monitoring data; The monitoring data of the fourth preset number of shares having a predetermined proportion of the minimum cooling load is removed from the monitoring data of the third preset number of shares, so as to obtain the monitoring data of the first preset number of shares after the data is arithmetically divided.

6. The method according to claim 2, characterized in that In the chilled water inlet temperature dimension and the cooling water return temperature dimension, the first preset number of monitoring data are divided into data arithmetic progressions to obtain the second preset number of monitoring data after the data arithmetic progressions, including: According to the preset refrigeration water inlet temperature differential value, any one of the first preset number of monitoring data is divided into data arithmetic differences to obtain a fifth preset number of monitoring data; According to the preset cooling return water temperature differential value, performing data arithmetic division on any one of the fifth preset number of monitoring data to obtain the second preset number of monitoring data after the data arithmetic division; or, According to the preset cooling return water temperature differential value, performing data arithmetic division on any one of the first preset number of monitoring data to obtain a sixth preset number of monitoring data; According to the preset refrigeration water inlet temperature differential value, any one of the sixth preset number of monitoring data is divided into data arithmetic differences to obtain the second preset number of monitoring data after the data arithmetic difference division.

7. The method according to claim 2, characterized in that The determining of typical operating data of the chiller based on the second preset number of monitoring data includes: Determining the frequency of any one of the second preset number of monitoring data, wherein the frequency represents the number of times the monitoring data appears in the process of obtaining the second preset number of monitoring data; The typical operating condition data of the typical operating condition corresponding to the chiller further includes: the frequency of any one of the second preset number of monitoring data.

8. The method according to claim 2, characterized in that: The determining of typical operating condition data of the chiller based on the second preset number of monitoring data further includes: If the frequency of any one of the second preset number of monitoring data is less than a predetermined frequency threshold, the monitoring data is discarded.

9. The method according to claim 1, characterized in that: The step of determining a target chiller selection scheme from each of the initial chiller selection schemes based on the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical operating condition comprises: The initial chiller selection scheme with the largest comprehensive energy efficiency ratio is determined as the target chiller selection scheme.

10. A device for determining a chiller selection scheme, characterized in that: The device comprises: An initial chiller selection scheme determination module is used to obtain each initial chiller selection scheme, and any initial chiller selection scheme includes at least one chiller; A comprehensive energy efficiency ratio acquisition module is used to calculate and obtain the comprehensive energy efficiency ratio of each initial chiller selection scheme under each typical operating condition based on each chiller included in each initial chiller selection scheme and the typical operating condition data of each typical operating condition corresponding to each chiller; the typical operating condition data of the typical operating condition corresponding to the chiller includes: monitoring data of the chiller working under the typical operating condition, and a second preset number of monitoring data obtained by dividing; A target chiller selection scheme determination module is used to determine a target chiller selection scheme from each of the initial chiller selection schemes based on the comprehensive energy efficiency ratio of each of the initial chiller selection schemes under each typical working condition; The comprehensive energy efficiency ratio acquisition module is specifically used to perform the following processing for any initial chiller selection scheme and any typical operating condition: Determine the sub-energy efficiency ratio corresponding to any one of the second preset number of monitoring data of each chiller in the initial chiller selection scheme under the typical operating condition; Obtaining a comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical operating condition according to the sub-energy efficiency ratios corresponding to the second preset number of monitoring data of each chiller; The typical operating condition data of the typical operating condition corresponding to the chiller further includes: the frequency of any one of the second preset number of monitoring data; The comprehensive energy efficiency ratio acquisition module is further used to determine the sum of the unit energy efficiency ratios of each chiller in the initial chiller selection scheme under the typical working condition as the comprehensive energy efficiency ratio of the initial chiller selection scheme under the typical working condition; The unit energy efficiency ratio of the chiller under the typical operating conditions is the sum of the energy efficiency ratio components corresponding to any one of the second preset number of monitoring data of the chiller under the typical operating conditions, and the energy efficiency ratio component is the product of the sub-energy efficiency ratio of the monitoring data and the frequency of the monitoring data, and the quotient of the sum of the frequencies of the second preset number of monitoring data.

11. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 9 are implemented.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 9 are implemented.

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