A method, apparatus, equipment, and storage medium for generating a chiller start-up scheme.

Abstract

This application relates to a method, apparatus, device, and storage medium for generating chiller start-up schemes. The method for generating chiller start-up schemes includes: establishing a chiller start-up scheme table based on historical operating conditions corresponding to a first time and a second time, and historical start-up schemes corresponding to those historical operating conditions. The historical operating conditions include historical indoor temperature differences, and the historical start-up schemes are the energy-efficient start-up schemes corresponding to those historical operating conditions. The method also includes determining target operating conditions corresponding to the first time and the second time, where the target operating conditions include a target indoor temperature difference. Finally, the application determines the chiller start-up scheme based on the target operating conditions and the start-up scheme table. This application enables the obtained start-up scheme to both meet the building's indoor temperature requirements and reduce energy consumption.

Description

Technical Field

[0001] This application relates to the field of heating, ventilation and air conditioning technology, and in particular to a method, apparatus, equipment and storage medium for generating a chiller start-up scheme. Background Technology

[0002] With the development of air conditioning technology, people have increasingly higher requirements for indoor temperature comfort. In service venues such as shopping malls and office buildings, it is generally desirable for the indoor temperature to reach the target value when the business begins. Due to the thermal inertia of the cooling system, to ensure that the indoor temperature reaches the target value when the business begins, the chillers need to be turned on some time in advance. However, because of fresh air leakage and heat exchange within the building, turning on the chillers too early will result in energy waste. Currently, there is a lack of methods to develop a chiller start-up scheme that can both meet the building's indoor temperature requirements and reduce energy consumption.

[0003] Therefore, the inventors provide a method, apparatus, equipment, and storage medium for generating a cold start-up scheme. Summary of the Invention

[0004] (1) Technical problems to be solved

[0005] This application provides a method, apparatus, equipment, and storage medium for generating a chiller start-up scheme. The technical problem to be solved is that the prior art lacks a method for generating a chiller start-up scheme that can both meet the indoor temperature requirements of buildings and reduce energy consumption.

[0006] (2) Technical solution

[0007] In a first aspect, embodiments of this application provide a method for generating a cold start-up scheme, comprising:

[0008] Based on the historical operating conditions corresponding to the first and second moments, and the historical start-up schemes corresponding to the historical operating conditions, a start-up scheme table for the chiller is established. The historical operating conditions include the historical indoor temperature difference, and the historical start-up schemes are the start-up schemes with the lowest energy consumption corresponding to the historical operating conditions.

[0009] Determine the target operating conditions corresponding to the first and second time points, where the target operating conditions include the target indoor temperature difference;

[0010] The start-up plan for the chiller is determined based on the target operating conditions and the start-up plan table.

[0011] In one embodiment, a chiller startup scheme table is established based on the historical operating conditions corresponding to the first and second time points, and the historical startup schemes corresponding to the historical operating conditions, including:

[0012] Based on the historical operating conditions corresponding to the first and second moments, obtain the power-on plan corresponding to the historical operating conditions on any day.

[0013] Based on the correspondence between historical operating conditions and the corresponding startup scheme for any given day, the historical operating conditions and the corresponding startup scheme for any given day are saved to the startup scheme table.

[0014] Based on historical operating conditions, obtain the corresponding startup plan for another day based on the historical operating conditions.

[0015] If the energy consumption of the power-on scheme for another day is less than that of any other day, replace the power-on scheme for any other day with the power-on scheme for the other day in the power-on scheme table.

[0016] Repeat the steps of obtaining the power-on scheme corresponding to the historical operating conditions on any day based on the historical operating conditions corresponding to the first and second time points, until the power-on scheme corresponding to the historical operating conditions is the power-on scheme with the lowest energy consumption. Then, select the power-on scheme with the lowest energy consumption as the historical power-on scheme corresponding to the historical operating conditions in the power-on scheme table.

[0017] In one embodiment, after obtaining the power-on plan corresponding to any day based on the historical operating conditions corresponding to the first and second moments, the method further includes:

[0018] Based on the start-up plan for any given day, determine the start-up time and target achievement time for the chiller, where the target achievement time is the moment when the indoor temperature reaches the target temperature.

[0019] If the difference between the power-on time and the target completion time is greater than the difference between the first time and the second time, the power-on plan for any given day will be removed.

[0020] In one embodiment, if the energy consumption of the power-on scheme for another day is less than the energy consumption of the power-on scheme for any other day, after replacing the power-on scheme for any other day with the power-on scheme for the other day in the power-on scheme table, the method further includes:

[0021] If the power consumption of the power-on plan in the first region of the power-on plan table is greater than the power consumption of the power-on plan for another day, the power-on plan for the first region of the power-on plan table will be replaced with the power-on plan for the other day. The first region is the region where the power consumption of the power-on plan is less than the power consumption of the power-on plan for any other day.

[0022] If the power consumption of the power-on plan in the second region of the power-on plan table is less than the power consumption of the power-on plan for another day, then the power-on plan for the second region in the power-on plan table will be replaced with the power-on plan for the other day. The second region is the region where the power consumption of the power-on plan is greater than the power consumption of the power-on plan for any other day.

[0023] In one embodiment, if the energy consumption of the power-on scheme in the first region of the power-on scheme table is greater than the energy consumption of the power-on scheme for another day, the power-on scheme for the first region is replaced in the power-on scheme table with the power-on scheme for the other day, including:

[0024] If the energy consumption of the power-on plan in the first region of the power-on plan table is greater than the energy consumption of the power-on plan for another day, determine the weight of the power-on plan for the other day.

[0025] The correction factor is determined based on the weights and the initial correction factor;

[0026] If the negative correction factor in the correction factor is greater than the preset factor, replace the boot scheme of the first region with the boot scheme of another day in the boot scheme table, and reset the initial correction factor.

[0027] If the negative correction coefficient in the correction coefficient is not greater than the preset coefficient, the boot scheme of the first area will not be replaced in the boot scheme table, and the correction coefficient will be re-determined as the initial correction coefficient.

[0028] In one embodiment, if the energy consumption of the power-on scheme in the second region of the power-on scheme table is less than the energy consumption of the power-on scheme for another day, the power-on scheme for the second region is replaced in the power-on scheme table with the power-on scheme for the other day, including:

[0029] If the energy consumption of the power-on plan in the second region of the power-on plan table is less than the energy consumption of the power-on plan for another day, determine the weight of the power-on plan for the other day.

[0030] The correction factor is determined based on the weights and the initial correction factor;

[0031] If the positive correction factor in the correction factor is greater than the preset factor, replace the second region's boot scheme with the boot scheme corresponding to another day in the boot scheme table, and reset the initial correction factor.

[0032] If the positive correction coefficient in the correction coefficient is not greater than the preset coefficient, the boot scheme of the second area will not be replaced in the boot scheme table, and the correction coefficient will be re-determined as the initial correction coefficient.

[0033] In one embodiment, the chiller startup plan is determined based on the target operating conditions and the startup plan table, including:

[0034] If the target operating condition is within the range of historical operating conditions in the start-up plan table, the historical start-up plan corresponding to the historical operating condition that is the same as the target operating condition in the start-up plan table shall be determined as the start-up plan for the cold unit.

[0035] If the target operating condition exceeds the range of historical operating conditions in the start-up plan table, the historical start-up plan corresponding to the historical operating condition closest to the target operating condition in the start-up plan table will be determined as the start-up plan for the cold unit.

[0036] Secondly, embodiments of this application provide an apparatus for generating a chiller start-up scheme, comprising:

[0037] The scheme establishment module is used to establish a start-up scheme table for the chiller based on the historical operating conditions corresponding to the first and second moments, as well as the historical start-up schemes corresponding to the historical operating conditions. The historical operating conditions include the historical indoor temperature difference, and the historical start-up schemes are the start-up schemes with the lowest energy consumption corresponding to the historical operating conditions.

[0038] The operating condition determination module is used to determine the target operating conditions corresponding to the first time and the second time, wherein the target operating conditions include the target indoor temperature difference;

[0039] The scheme determination module is used to determine the start-up scheme of the chiller based on the target operating conditions and the start-up scheme table.

[0040] Thirdly, embodiments of this application provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the method for generating a cold start-up scheme as described above.

[0041] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for generating a cold start scheme as described above.

[0042] (3) Beneficial effects

[0043] The above-mentioned technical solution of this application has the following advantages:

[0044] The chiller start-up scheme generation method provided in the first aspect of this application establishes a chiller start-up scheme table based on historical operating conditions corresponding to a first time and a second time, and historical start-up schemes corresponding to the historical operating conditions. The historical operating conditions include historical indoor temperature differences, and the historical start-up schemes are the start-up schemes with the lowest energy consumption corresponding to the historical operating conditions. The method then determines the target operating conditions corresponding to the first time and the second time, where the target operating conditions include target indoor temperature differences. Finally, the method determines the chiller start-up scheme based on the target operating conditions and the start-up scheme table, so that the obtained start-up scheme can both meet the building's indoor temperature requirements and reduce energy consumption.

[0045] It is understood that the beneficial effects of the second, third and fourth aspects mentioned above can be found in the relevant descriptions in the first aspect above, and will not be repeated here. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 A flowchart illustrating the method for generating the chiller start-up scheme provided in this application;

[0048] Figure 2 A schematic diagram of the power-on scheme table provided in this application;

[0049] Figure 3 A schematic diagram illustrating the modification of the power-on scheme table provided in this application;

[0050] Figure 4 A schematic diagram of the structure of the device for generating the chiller start-up scheme provided in this application;

[0051] Figure 5 A schematic diagram of the structure of the electronic device provided in this application. Detailed Implementation

[0052] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of this application with unnecessary detail.

[0053] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0054] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0055] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" means "two or more."

[0056] With the development of air conditioning technology, people have increasingly higher requirements for indoor temperature comfort. In service venues such as shopping malls and office buildings, it is generally desirable for the indoor temperature to reach the target value when business begins. Due to the thermal inertia of cooling systems, achieving the target indoor temperature at the start of business requires turning on the chillers some time in advance. However, due to air leakage and heat exchange within the building, turning on the chillers too early leads to energy waste. Calculation methods that use data simulation analysis or fit the relationship between indoor temperature drop and chiller start-up time to build a data model often suffer from significant prediction errors due to factors such as chiller start-up response time, system initial state, and specific business type. Furthermore, these methods are highly dependent on data for determining various initial states, and have stringent requirements for project data collection and output. Therefore, there is currently a lack of methods for generating chiller start-up schemes that have lower data requirements, can meet building indoor temperature needs, and reduce energy consumption.

[0057] To address the aforementioned problems, this application provides a method for generating a cold start-up scheme. The specific implementation details of this application are described in further detail below with reference to the accompanying drawings and embodiments. The following embodiments are illustrative of this application but are not intended to limit its scope.

[0058] like Figure 1 As shown, the method for generating a chiller start-up scheme provided in this embodiment includes:

[0059] S100. Based on the historical operating conditions corresponding to the first and second moments, and the historical start-up schemes corresponding to the historical operating conditions, establish a start-up scheme table for the chiller. Among them, the historical operating conditions include the historical indoor temperature difference, and the historical start-up scheme is the start-up scheme with the lowest energy consumption corresponding to the historical operating conditions.

[0060] In applications, the aforementioned chillers include common types of heat sources such as centrifugal chillers, screw chillers, multi-split systems, and air-source / water-source heat pumps. Any air conditioning system that requires a certain response time for indoor temperature drop during startup is acceptable. The first time point mentioned above can be the current time Nt (Now_time) at which the startup plan is to be obtained, and the second time point mentioned above can be the time when the building, such as a shopping mall or office building, begins operation St (Start_time). The first time point can be 120 minutes before the second time point. The historical operating conditions mentioned above can include historical indoor temperature Tin, indoor relative humidity RHin, indoor enthalpy Hin, outdoor temperature Tout, outdoor relative humidity RHout, and outdoor enthalpy Hout. Temperature can be obtained through temperature sensors, while humidity and enthalpy can be obtained from published weather data. The indoor temperature difference ΔT between the first time point Nt and the second time point St can be used as the formula: ΔT = Tin_ Nt -Tin_ St The change in indoor heat load is represented by the outdoor average enthalpy H = (Hout_Nt - Hout_St) / 2 at the first time Nt and the second time St, which represents the outdoor operating conditions, thereby reducing the number of variables that need to be considered for the operating conditions.

[0061] In application, the above start-up scheme may include the time tl (time_len) for the chiller to start up before the second time point. Typically, buildings select chillers with two different cooling capacity ranges to ensure smooth operation of different loads on site. Therefore, the start-up scheme may also include a combination of large chillers (L) and small chillers (S), i.e., several large and several small chillers. If the start-up scheme for a certain historical day is determined, then the historical operating conditions ΔT and H corresponding to the first and second times points on that day are also determined. However, there may be multiple start-up schemes for the same historical operating conditions on different days. Therefore, establishing a chiller start-up scheme table based on the historical operating conditions corresponding to the first and second times points, and the historical start-up schemes corresponding to those historical operating conditions, can be achieved by using historical data—that is, the historical operating conditions corresponding to the first and second times points—to obtain the start-up scheme with the lowest energy consumption for that historical operating condition as the historical start-up scheme for that historical operating condition, and then establishing the start-up scheme table based on the correspondence between historical operating conditions and historical start-up schemes. Figure 2 As shown.

[0062] S200, Determine the target operating conditions corresponding to the first and second time points. The target operating conditions include the target indoor temperature difference.

[0063] In application, since the target temperature Tt (Temp target) of a building is usually relatively stable when it starts operating and is modified less frequently, the above determination of the target operating conditions corresponding to the first and second moments can be to determine the temperature difference ΔT = Tin_Nt - Tt between the indoor temperature and the target temperature at the first moment, and the outdoor average enthalpy H = (Hout_Nt - Hout_St) / 2 at the first and second moments.

[0064] S300. Determine the start-up plan for the chiller based on the target operating conditions and the start-up plan table.

[0065] In application, if the goal is to ensure the building's indoor temperature reaches the target temperature at the start of business on a given day, with minimal chiller capacity depletion, the chiller's operating plan for that day can be determined using a target operating condition and operating plan table. This determination can be achieved by substituting the target operating condition into the operating plan table, obtaining a historical operating plan that matches the target operating condition, and then using that historical operating plan as the chiller's operating plan for that day.

[0066] The chiller start-up scheme generation method provided in this application embodiment establishes a chiller start-up scheme table based on historical operating conditions corresponding to a first time and a second time, and historical start-up schemes corresponding to the historical operating conditions. The historical operating conditions include historical indoor temperature differences, and the historical start-up schemes are the start-up schemes with the lowest energy consumption corresponding to the historical operating conditions. The method then determines the target operating conditions corresponding to the first time and the second time, where the target operating conditions include target indoor temperature differences. Based on the target operating conditions and the start-up scheme table, the method determines the chiller start-up scheme so that the obtained start-up scheme can both meet the building's indoor temperature requirements and reduce energy consumption.

[0067] In one embodiment, establishing a chiller startup scheme table based on the historical operating conditions corresponding to the first and second moments, and the historical startup schemes corresponding to the historical operating conditions, includes: obtaining the startup scheme corresponding to any day of the historical operating conditions based on the historical operating conditions corresponding to the first and second moments; saving the historical operating conditions and the startup schemes corresponding to any day to the startup scheme table based on the correspondence between the historical operating conditions and the startup schemes corresponding to any day; obtaining the startup scheme corresponding to the historical operating conditions on another day based on the historical operating conditions; if the energy consumption of the startup scheme corresponding to the other day is less than the energy consumption of the startup scheme corresponding to any day, replacing the startup scheme corresponding to any day with the startup scheme corresponding to the other day in the startup scheme table; repeating the step of obtaining the startup scheme corresponding to any day of the historical operating conditions based on the historical operating conditions corresponding to the first and second moments until the startup scheme corresponding to the historical operating conditions is the startup scheme with the lowest energy consumption, and using the startup scheme with the lowest energy consumption as the historical startup scheme corresponding to the historical operating conditions in the startup scheme table.

[0068] In application, when the startup plan corresponding to a specific historical operating condition on a past day is obtained, this startup plan can be saved to the startup plan table. The energy consumption of this plan can then be calculated using a chiller plant energy consumption optimization solver, or the energy consumption can be obtained by multiplying the sum of the rated power corresponding to the startup combinations of this plan by tl. If a startup plan corresponding to the same historical operating condition on another past day is obtained, and the energy consumption of this other day's startup plan is less than the original startup plan's energy consumption, then the startup plan table needs to be corrected. That is, the startup plan table is updated by replacing the original startup plan with the one corresponding to the other day. This process is repeated until the startup plan table for a specific historical operating condition has the lowest energy consumption. The startup plan with the lowest energy consumption is then determined as the historical startup plan for that historical operating condition. The startup plan table can be periodically updated with new historical data.

[0069] In one embodiment, after obtaining the start-up plan corresponding to the historical operating conditions on any given day based on the historical operating conditions corresponding to the first and second times, the method further includes: determining the start-up time and the target time corresponding to the chiller based on the start-up plan corresponding to any given day, wherein the target time is the time when the indoor temperature reaches the target temperature; if the difference between the start-up time and the target time is greater than the difference between the first and second times, the start-up plan corresponding to any given day is removed.

[0070] In application, if the difference between the actual start-up time (ta) and the target achievement time for a certain day's start-up plan is greater than the difference between the first time and the second time, such as greater than 120 minutes, it means that the start-up plan makes the time from the start-up of the chiller to the indoor temperature reaching the target temperature greater than the time between the first time and the second time. Therefore, even if the chiller is started at the first time, the indoor temperature will not reach the target temperature at the second time. Thus, the start-up plan for this day can be removed, i.e., not saved to the start-up plan table.

[0071] In one embodiment, if the energy consumption of the power-on scheme for another day is less than the energy consumption of the power-on scheme for any other day, after replacing the power-on scheme for any other day in the power-on scheme table with the power-on scheme for the other day, the method further includes: if the energy consumption of the power-on scheme in the first region of the power-on scheme table is greater than the energy consumption of the power-on scheme for another day, replacing the power-on scheme for the first region in the power-on scheme table with the power-on scheme for the other day, wherein the first region is the region where the energy consumption of the power-on scheme is less than the energy consumption of the power-on scheme for any other day; if the energy consumption of the power-on scheme in the second region of the power-on scheme table is less than the energy consumption of the power-on scheme for another day, replacing the power-on scheme for the second region in the power-on scheme table with the power-on scheme for the other day, wherein the second region is the region where the energy consumption of the power-on scheme is greater than the energy consumption of the power-on scheme for any other day.

[0072] In application, the energy consumption E of the historical operating conditions ΔT and H and their corresponding startup schemes are usually positively correlated; that is, the larger the historical operating conditions ΔT and H are, the larger the energy consumption E of their corresponding startup schemes is usually. Therefore, if the startup scheme corresponding to a certain historical operating condition in the startup scheme table is modified, it may affect the original startup schemes corresponding to other historical operating conditions in the startup scheme table. The first region mentioned above can be the area to the lower left of the modified startup scheme in the startup scheme table. The energy consumption of startup schemes in this region is usually lower than that of the modified startup scheme. Therefore, if there is a startup scheme in the first region whose energy consumption is greater than that of the modified startup scheme, a negative correction can be made to the first region, that is, the modified startup scheme can replace the original startup scheme. Figure 3 As shown, if the scheme corresponding to T=1.5 and H=65 needs to be modified, then this is used as the starting point to perform a negative correction on the lower left region where ΔT≤1.5 and H≤65. The aforementioned second region can be the region to the upper right of the modified power-on scheme in the power-on scheme table. The energy consumption of the power-on scheme in this region is usually greater than the energy consumption of the modified power-on scheme. Therefore, if there is a power-on scheme in the aforementioned second region with energy consumption less than the energy consumption of the modified power-on scheme, then a positive correction can be performed on the aforementioned second region, that is, the modified power-on scheme can replace the original power-on scheme. For example... Figure 3 As shown, if the scheme corresponding to T=1.5 and H=65 needs to be modified, then positive correction is performed on the upper right region where ΔT≥1.5 and H≥65, starting from this point.

[0073] In one embodiment, if the energy consumption of the power-on scheme in the first region of the power-on scheme table is greater than the energy consumption of the power-on scheme for another day, the power-on scheme for the first region is replaced in the power-on scheme table using the power-on scheme for the other day. This includes: if the energy consumption of the power-on scheme in the first region of the power-on scheme table is greater than the energy consumption of the power-on scheme for the other day, determining the weight of the power-on scheme for the other day; determining a correction coefficient based on the weight and an initial correction coefficient; if the negative correction coefficient is greater than a preset coefficient, the power-on scheme for the first region is replaced in the power-on scheme table using the power-on scheme for the other day, and the initial correction coefficient is reset; if the negative correction coefficient is not greater than the preset coefficient, the power-on scheme for the first region is not replaced in the power-on scheme table, and the correction coefficient is redefined as the initial correction coefficient.

[0074] In one embodiment, if the energy consumption of the power-on scheme for the second region in the power-on scheme table is less than the energy consumption of the power-on scheme for another day, the power-on scheme for the second region is replaced in the power-on scheme table using the power-on scheme for the other day. This includes: if the energy consumption of the power-on scheme for the second region in the power-on scheme table is less than the energy consumption of the power-on scheme for the other day, determining the weight of the power-on scheme for the other day; determining a correction coefficient based on the weight and an initial correction coefficient; if the positive correction coefficient is greater than a preset coefficient, the power-on scheme for the second region is replaced in the power-on scheme table using the power-on scheme for the other day, and the initial correction coefficient is reset; if the positive correction coefficient is not greater than the preset coefficient, the power-on scheme for the second region is not replaced in the power-on scheme table, and the correction coefficient is redefined as the initial correction coefficient.

[0075] In application, the above-mentioned modification of the power-on scheme table is based on the premise of absolute trust in the historical data of the most recent date. If the quality of the historical data is not high, a data confidence rate can be introduced to weight the positive and negative modifications. The initial modification coefficient can be set to a positive modification coefficient of 0, a no-modification coefficient of 1, and a negative modification coefficient of 0. If the weight of the newly obtained historical data is 0.7, and it is determined to be a positive modification (positive modification coefficient of 1, no-modification coefficient of 0, negative modification coefficient of 0), then the weight of the initial modification coefficient is 0.3. Multiply the initial modification coefficient by the weight, multiply the modification coefficient of the newly obtained historical data by the weight, and add the two to obtain the final modification coefficient of the new historical data as a positive modification coefficient of 0.7, a no-modification coefficient of 0.3, and a negative modification coefficient of 0. The preset coefficient can be 0.5. If the positive modification coefficient is greater than the preset coefficient, then a positive modification can be performed on the power-on scheme table. After the modification, the initial coefficient is reset to a positive modification coefficient of 0, a no-modification coefficient of 1, and a negative modification coefficient of 0. If the weight of the newly acquired historical data is 0.3, and it is determined to be a positive correction (positive correction coefficient 1, no correction coefficient 0, negative correction coefficient 0), then the weight of the initial correction coefficient is 0.7. The initial correction coefficient is multiplied by the weight, and the correction coefficient of the newly acquired historical data is multiplied by the weight. These two are added together to obtain the final correction coefficient for the new historical data: a positive correction coefficient of 0.3, a no correction coefficient of 0.7, and a negative correction coefficient of 0. Since the positive correction coefficient is not greater than the preset coefficient, the startup plan table is not modified, and the positive correction coefficient of 0.3, the no correction coefficient of 0.7, and the negative correction coefficient of 0 are retained and re-determined as the initial correction coefficient. The same logic applies to the case of a negative correction.

[0076] In one embodiment, determining the chiller's start-up plan based on the target operating condition and the start-up plan table includes: if the target operating condition is within the range of historical operating conditions in the start-up plan table, determining the historical start-up plan corresponding to the historical operating condition that is the same as the target operating condition in the start-up plan table as the chiller's start-up plan; if the target operating condition exceeds the range of historical operating conditions in the start-up plan table, determining the historical start-up plan corresponding to the historical operating condition that is closest to the target operating condition in the start-up plan table as the chiller's start-up plan.

[0077] In application, when the target operating condition exceeds the ΔT and H ranges in the startup plan table, it is constrained by the plan corresponding to the range in the startup plan table. For example... Figure 2 As shown, when the target operating condition ΔT = 1 and H = 90 during actual use, the start-up scheme corresponding to ΔT = 1 and H = 80 in the start-up scheme table is adopted.

[0078] The method for generating a chiller start-up scheme provided in this application improves the accuracy and applicability of the start-up scheme table by modifying a start-up scheme in the start-up scheme table, further modifying the start-up schemes in other areas of the start-up scheme table, and introducing weights into historical data. The method determines whether to modify the start-up scheme table by using the modification coefficient of the historical data.

[0079] Corresponding to the method for generating the chiller start-up scheme described in the above embodiments, such as Figure 4 As shown, this embodiment provides a chiller start-up scheme generation device 400, which includes:

[0080] The scheme establishment module 401 is used to establish a start-up scheme table for the chiller based on the historical operating conditions corresponding to the first and second time moments, and the historical start-up schemes corresponding to the historical operating conditions. The historical operating conditions include the historical indoor temperature difference, and the historical start-up schemes are the start-up schemes with the lowest energy consumption corresponding to the historical operating conditions.

[0081] The operating condition determination module 402 is used to determine the target operating conditions corresponding to the first time and the second time, wherein the target operating conditions include the target indoor temperature difference;

[0082] The scheme determination module 403 is used to determine the start-up scheme of the chiller based on the target operating conditions and the start-up scheme table.

[0083] It should be noted that the information interaction and execution process between the above modules / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0084] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0085] This application also provides an electronic device 500, such as... Figure 5 As shown, it includes a memory 501, a processor 502, and a computer program 503 stored in the memory 501 and executable on the processor 502. When the processor 502 executes the computer program 503, it implements the steps of the method for generating the cold start scheme provided in the first aspect.

[0086] In applications, electronic devices may include, but are not limited to, processors and memory. Figure 5 This is merely an example of an electronic device and does not constitute a limitation on the device. It may include more or fewer components than illustrated, or combinations of certain components, or different components, such as input / output devices, network access devices, etc. Input / output devices may include cameras, audio capture / playback devices, displays, etc. Network access devices may include network modules for wireless network communication with external devices.

[0087] In applications, the processor can be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0088] In applications, memory can be an internal storage unit of an electronic device in some embodiments, such as a hard drive or RAM. In other embodiments, memory can be an external storage device of the electronic device, such as a plug-in hard drive, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card. Memory can also include both internal and external storage units of the electronic device. Memory is used to store operating systems, applications, bootloaders, data, and other programs, such as program code for computer programs. Memory can also be used to temporarily store data that has been output or will be output.

[0089] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can implement the steps in the above-described method embodiments.

[0090] This application implements all or part of the processes in the methods of the above embodiments, which can be accomplished by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium can include at least: any entity or device capable of carrying the computer program code to an electronic device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, such as a USB flash drive, a portable hard drive, a magnetic disk, or an optical disk.

[0091] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0092] Those skilled in the art will recognize that the device and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0093] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interface, or the device may be indirectly coupled or communicated, and may be electrical, mechanical, or other forms.

[0094] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A method for generating a chiller start-up scheme, characterized in that, include: Based on the historical operating conditions corresponding to the first and second moments, and the historical start-up schemes corresponding to the historical operating conditions, a start-up scheme table for the chiller is established. The historical operating conditions include historical indoor temperature differences, and the historical start-up schemes are the start-up schemes with the lowest energy consumption corresponding to the historical operating conditions. The first moment is the current moment, and the second moment is the moment when the building begins to operate. Determine the target operating conditions corresponding to the first time point and the second time point, wherein the target operating conditions include the target indoor temperature difference; The start-up plan for the chiller is determined based on the target operating conditions and the start-up plan table; the start-up plan includes the duration for which the chiller is started up in advance before the second time point, and the start-up combination of the large chiller and the small chiller. The step of establishing a chiller start-up scheme table based on the historical operating conditions corresponding to the first and second time points, and the historical start-up schemes corresponding to the historical operating conditions, includes: Based on the historical operating conditions corresponding to the first and second moments, obtain the power-on plan corresponding to the historical operating conditions on any day; Based on the correspondence between the historical operating conditions and the power-on scheme for any given day, the historical operating conditions and the power-on scheme for any given day are saved to the power-on scheme table. Based on the historical operating conditions, obtain the corresponding startup plan for another day; If the energy consumption of the power-on scheme for the other day is less than the energy consumption of the power-on scheme for any day, the power-on scheme for the other day will replace the power-on scheme for any day in the power-on scheme table. Repeat the step of obtaining the power-on scheme corresponding to the historical operating conditions on any day based on the historical operating conditions corresponding to the first time and the second time, until the power-on scheme corresponding to the historical operating conditions is the power-on scheme with the lowest energy consumption, and take the power-on scheme with the lowest energy consumption as the historical power-on scheme corresponding to the historical operating conditions in the power-on scheme table. If the energy consumption of the power-on plan for the other day is less than the energy consumption of the power-on plan for any other day, after replacing the power-on plan for any other day with the power-on plan for the other day in the power-on plan table, the method further includes: If the energy consumption of the power-on scheme in the first region of the power-on scheme table is greater than the energy consumption of the power-on scheme for the other day, determine the weight of the power-on scheme for the other day. The correction coefficient is determined based on the weights and the initial correction coefficient. If the negative correction coefficient in the correction coefficient is greater than the preset coefficient, the power-on scheme of the first region is replaced by the power-on scheme corresponding to the other day in the power-on scheme table, and the initial correction coefficient is reset. If the negative correction coefficient in the correction coefficient is not greater than the preset coefficient, the boot scheme of the first region will not be replaced in the boot scheme table, and the correction coefficient will be re-determined as the initial correction coefficient; The first region is the region where the energy consumption of the power-on scheme is less than the energy consumption of the power-on scheme corresponding to any given day. If there is a power-on scheme in the first region where the energy consumption is greater than the energy consumption of the corrected power-on scheme, then the first region is negatively corrected, and the corrected power-on scheme is used to replace the original power-on scheme. If the energy consumption of the power-on scheme in the second region of the power-on scheme table is less than the energy consumption of the power-on scheme for the other day, determine the weight of the power-on scheme for the other day. The correction coefficient is determined based on the weights and the initial correction coefficient. If the positive correction coefficient is greater than the preset coefficient, the power-on scheme for the second region is replaced with the power-on scheme for the other day in the power-on scheme table, and the initial correction coefficient is reset. If the positive correction coefficient is not greater than the preset coefficient, the boot scheme of the second region will not be replaced in the boot scheme table, and the correction coefficient will be re-determined as the initial correction coefficient. The second region is the region where the energy consumption of the power-on scheme is greater than the energy consumption of the power-on scheme corresponding to any given day. If there is a power-on scheme in the second region where the energy consumption is less than the energy consumption of the corrected power-on scheme, then the second region is positively corrected, and the corrected power-on scheme is used to replace the original power-on scheme.

2. The method for generating a chiller start-up scheme as described in claim 1, characterized in that, After obtaining the power-on plan corresponding to any day based on the historical operating conditions corresponding to the first and second moments, the method further includes: Based on the start-up plan for any given day, determine the start-up time and target achievement time for the chiller, wherein the target achievement time is the time when the indoor temperature reaches the target temperature; If the difference between the power-on time and the target achievement time is greater than the difference between the first time and the second time, the power-on plan corresponding to any given day will be removed.

3. The method for generating a chiller start-up scheme as described in claim 1, characterized in that, The step of determining the chiller's start-up plan based on the target operating conditions and the start-up plan table includes: If the target operating condition is within the range of historical operating conditions in the start-up scheme table, the historical start-up scheme corresponding to the historical operating condition that is the same as the target operating condition in the start-up scheme table shall be determined as the start-up scheme of the chiller. If the target operating condition exceeds the range of historical operating conditions in the start-up scheme table, the historical start-up scheme corresponding to the historical operating condition closest to the target operating condition in the start-up scheme table shall be determined as the start-up scheme of the chiller.

4. A device for generating a chiller start-up scheme, characterized in that, A method for generating a chiller start-up scheme as described in any one of claims 1 to 3.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method for generating a cold start-up scheme as described in any one of claims 1 to 3.

6. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the method for generating a cold start-up scheme as described in any one of claims 1 to 3.

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