Method and device for controlling operation of machine room air conditioner, air conditioner and storage medium

Abstract

Embodiments of the present application disclose a kind of operation control method, device, air conditioner and storage medium of computer room air conditioner.The method comprises: if the operating frequency of host reaches target operating frequency, according to the indoor environment temperature and target set temperature obtained, determine the adjustment time length required for the host to adjust temperature to reach target set temperature at the target operating frequency;If the adjustment time length is greater than the preset adjustment time length, according to the target operating frequency, determine the target energy efficiency and target temperature adjustment capacity corresponding to the target operating frequency, and obtain the maximum energy-saving temperature adjustment capacity of host air conditioner;If the target energy efficiency is not in the preset optimal energy-saving energy efficiency range, according to the target temperature adjustment capacity and the maximum energy-saving temperature adjustment capacity, determine the start number and slave operating frequency of slave air conditioner, and control the operation of slave air conditioner according to the start number and slave operating frequency.The method of the embodiments of the present application can solve the problem of single control and high energy consumption of base station air conditioner.

Description

Technical Field

[0001] This invention relates to the field of temperature control technology, and in particular to a method, device, air conditioner, and storage medium for controlling the operation of a computer room air conditioner. Background Technology

[0002] In unattended data center environments, multiple air conditioners are installed to reduce the heat generated by base station equipment, ensuring its normal operation and preventing issues such as a single air conditioner failing to achieve the desired cooling effect or malfunctioning. Current technologies and practices typically use one air conditioner as the master unit, connected to the data center's central control system while simultaneously connecting to other air conditioners as slave units, or each air conditioner acts as a master unit connected to the central control system. However, these existing connection methods only allow for basic coordination between the air conditioners, resulting in high energy consumption when adjusting and maintaining the data center temperature. Summary of the Invention

[0003] This invention provides a method, device, air conditioner, and storage medium for controlling the operation of a computer room air conditioner, aiming to solve the problems of single control and high energy consumption of base station air conditioners.

[0004] In a first aspect, embodiments of the present invention provide an operation control method for a data center air conditioner, comprising: if the host air conditioner's host operating frequency reaches a target host operating frequency, determining, based on the acquired indoor ambient temperature and a target set temperature, the adjustment time required for the host air conditioner to adjust the temperature at the target host operating frequency to reach the target set temperature; if the adjustment time is greater than a preset adjustment time, determining, based on the target host operating frequency, the host target energy efficiency and host target temperature adjustment capability corresponding to the target host operating frequency, and acquiring the maximum energy-saving temperature adjustment capability of the host air conditioner; if the target energy efficiency is not within the preset optimal energy-saving energy efficiency range, determining, based on the host target temperature adjustment capability and the maximum energy-saving temperature adjustment capability, the number of slave air conditioners to be turned on and the slave operating frequency, and controlling the operation of the slave air conditioners according to the number of turned-on and the slave operating frequency.

[0005] Secondly, embodiments of the present invention also provide an operation control device for a data center air conditioner, comprising: a duration acquisition unit, configured to, if the host air conditioner's host operating frequency reaches a target host operating frequency, determine, based on the acquired indoor ambient temperature and a target set temperature, the adjustment duration required for the host air conditioner to adjust the temperature at the target host operating frequency to reach the target set temperature; a capability acquisition unit, configured to, if the adjustment duration is greater than a preset adjustment duration, determine, based on the target host operating frequency, the host target energy efficiency and host target temperature adjustment capability corresponding to the target host operating frequency, and acquire the maximum energy-saving temperature adjustment capability of the host air conditioner; and a control unit, configured to, if the target energy efficiency is not within the preset optimal energy-saving energy efficiency range, determine, based on the host target temperature adjustment capability and the maximum energy-saving temperature adjustment capability, the number of slave air conditioners to be turned on and the slave air conditioner operating frequency, and control the operation of the slave air conditioners based on the number of turned on and the slave air conditioner operating frequency.

[0006] Thirdly, embodiments of the present invention also provide an air conditioner, which includes a memory and a processor, wherein a computer program is stored on the air conditioner, and the processor executes the computer program to implement the above-described method.

[0007] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing a computer program, the computer program including program instructions that, when executed by a processor, can implement the above-described method.

[0008] This invention provides a method, apparatus, computer equipment, and storage medium for controlling the operation of a data center air conditioner. The method includes: if the operating frequency of the main unit air conditioner reaches a target operating frequency, determining the adjustment time required for the main unit air conditioner to adjust the temperature at the target operating frequency to reach the target set temperature based on the acquired indoor ambient temperature and target set temperature; if the adjustment time is greater than a preset adjustment time, determining the target energy efficiency and target temperature adjustment capability of the main unit air conditioner corresponding to the target operating frequency, and obtaining the maximum energy-saving temperature adjustment capability of the main unit air conditioner; if the target energy efficiency is not within a preset optimal energy efficiency range, determining the number of slave air conditioners to be activated and their operating frequency based on the target temperature adjustment capability and the maximum energy-saving temperature adjustment capability, and controlling the operation of the slave air conditioners based on the number of activated slave air conditioners and their operating frequency. This invention, by determining whether the target energy efficiency of the main unit air conditioner is within the optimal energy efficiency range, decides whether to activate the slave air conditioners and controls their operation, thereby reducing the operating frequency of each unit and achieving energy-saving operation of the data center air conditioner. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 A flowchart illustrating the operation control method for a computer room air conditioner provided in an embodiment of the present invention;

[0011] Figure 2 This is a schematic diagram of a sub-process of the operation control method for a computer room air conditioner provided in an embodiment of the present invention;

[0012] Figure 3 This is a schematic diagram of a sub-process of the operation control method for a computer room air conditioner provided in an embodiment of the present invention;

[0013] Figure 4 A schematic diagram of a sub-process of a method for controlling the operation of a computer room air conditioner according to another embodiment of the present invention;

[0014] Figure 5 A schematic diagram of a sub-process of a method for controlling the operation of a computer room air conditioner according to another embodiment of the present invention;

[0015] Figure 6 This is a schematic diagram of a sub-process of the operation control method for a computer room air conditioner provided in an embodiment of the present invention;

[0016] Figure 7 A schematic diagram of the capacity / energy efficiency-frequency curve of the operation control method for a computer room air conditioner provided in an embodiment of the present invention;

[0017] Figure 8 A schematic block diagram of an operation control device for a computer room air conditioner provided in an embodiment of the present invention;

[0018] Figure 9 A schematic block diagram of a computer device provided for an embodiment of the present invention. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0021] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0022] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0023] Please see Figure 1 , Figure 1 This is a schematic flowchart illustrating the operation control method for a data center air conditioner provided in this embodiment of the invention. The operation control method for the data center air conditioner in this embodiment can be applied to unattended data centers. Data centers typically have two or more air conditioners installed to avoid problems with one air conditioner or insufficient temperature control. This invention interconnects the data center air conditioners and connects them all to the data center central control system. In this case, using the method of this invention can solve the problems of single-control and high energy consumption of base station air conditioners.

[0024] Figure 1 This is a flowchart illustrating the operation control method for a computer room air conditioner provided in an embodiment of the present invention. As shown in the figure, the method includes the following steps S110-130.

[0025] S110. If the operating frequency of the main unit of the air conditioner reaches the target operating frequency, determine the adjustment time required for the main unit air conditioner to adjust the temperature at the target operating frequency to reach the target set temperature based on the obtained indoor ambient temperature and target set temperature.

[0026] In this embodiment, for clarity and ease of description, the target host operating frequency will be referred to as f in the following text. 目标The target operating frequency of the main unit air conditioner is the operating frequency calculated based on indoor ambient temperature, humidity, and other environmental information after the main unit is turned on; the target set temperature is the temperature to be adjusted to in the indoor environment. When the main unit air conditioner's operating frequency reaches the target operating frequency, the adjustment time required for the main unit air conditioner to control the temperature to the target set temperature at the current target operating frequency is calculated based on the indoor ambient temperature and the target set temperature. For example, first, the rate of temperature decrease at the target operating frequency is calculated, then the temperature difference between the indoor ambient temperature and the target set temperature is calculated, and finally, based on f... 目标 The adjustment time is estimated based on the rate of temperature decrease and the temperature difference. Determining the required adjustment time helps determine whether it's necessary to activate the slave device or perform other operations to achieve energy savings.

[0027] S120. If the adjustment duration is greater than the preset adjustment duration, determine the host target energy efficiency and host target temperature adjustment capability corresponding to the target host operating frequency based on the target host operating frequency, and obtain the maximum energy-saving temperature adjustment capability of the host air conditioner.

[0028] In this embodiment, the target energy efficiency of the main unit refers to the energy efficiency produced by the main unit air conditioner at the target main unit operating frequency, and the target temperature regulation capability of the main unit refers to the capability produced by the main unit air conditioner at the target main unit operating frequency, wherein the capability is the cooling or heating output of the air conditioner. Specifically, the target energy efficiency and target temperature regulation capability of the main unit are calculated according to a preset formula, and the relationship between the target temperature regulation capability and the target main unit operating frequency is as follows:

[0029] Q = a * ln(f) + b; (1)

[0030] Where Q represents capacity, f is the operating frequency of the air conditioner, and a and b are known constants, which are obtained by the inventor through fitting the air conditioner output cooling / heating capacity at the performance test frequency using formula (1);

[0031] The relationship between the target energy efficiency of the host and the operating frequency of the target host is as follows:

[0032] E = c*f^2 + d*f + e; (2)

[0033] Where E represents energy efficiency, f is the operating frequency of the air conditioner, and c, d, and e are known constants obtained by the inventors through fitting the air conditioner energy efficiency at the performance test frequency using formula (2).

[0034] Based on the above formula and the condition of the main unit air conditioner, the maximum energy efficiency of the main unit air conditioner can be obtained. The maximum energy-saving frequency corresponding to this maximum energy efficiency can then be obtained. Substituting this maximum energy-saving frequency into the above formula yields the maximum energy-saving temperature regulation capability of the main unit air conditioner. By obtaining the target energy efficiency and target temperature regulation capability of the main unit corresponding to the target operating frequency, as well as the maximum energy-saving temperature regulation capability of the main unit air conditioner, the current operating status of the main unit air conditioner can be further assessed, facilitating energy-saving effects under various conditions.

[0035] In one embodiment, such as Figure 2 As shown, step S120 is followed by steps S1201-S1202.

[0036] S1201. Determine whether the host target energy efficiency is less than the first preset energy efficiency, wherein the first preset energy efficiency is less than the lower limit of the preset optimal energy efficiency range;

[0037] S1202. If the target energy efficiency of the host is less than the first preset energy-saving energy efficiency, then it is determined that the target energy efficiency of the host is not within the preset optimal energy-saving energy efficiency range.

[0038] In this embodiment, for clarity and ease of description, the maximum energy-saving efficiency will be referred to as E in the following text. max The preset optimal energy efficiency is abbreviated as E2. The preset optimal energy efficiency range is the interval between the maximum energy efficiency and the optimal energy efficiency, that is, E2-E. max The relational expression for obtaining E2 is:

[0039] E2 = Emax - △E2; (3)

[0040] Among them, △E2 is the recommended value (0, 1.5).

[0041] The first preset energy efficiency is abbreviated as E1. The first preset energy efficiency is less than the lower limit of the preset optimal energy efficiency range, that is, E1 is less than E2. The formula for obtaining E1 is:

[0042] E1 = Emax - △E1; (4)

[0043] Among them, △E1 is the recommended value (1.5, 3).

[0044] In this embodiment, the range E1-E2 represents an acceptable energy efficiency range. The system determines whether the host's target energy efficiency is less than a first preset energy efficiency level. If the target energy efficiency is less than the first preset energy efficiency level, it indicates that the host's target energy efficiency is not within the energy efficiency range. Since the host's target energy efficiency is not within the energy efficiency range, it cannot be within the preset optimal energy efficiency range. Therefore, it is determined that the host's target energy efficiency is not within the preset optimal energy efficiency range. By determining whether the host's target energy efficiency is less than the first preset energy efficiency level, it is possible to determine whether the host's target energy efficiency is within the energy efficiency range, facilitating different operations based on different combinations to achieve energy-saving effects.

[0045] S130. If the target energy efficiency is not within the preset optimal energy efficiency range, determine the number of slave air conditioners to be turned on and the slave air conditioner operating frequency based on the host target temperature regulation capability and the maximum energy-saving temperature regulation capability, and control the operation of the slave air conditioner based on the number of turns on and the slave air conditioner operating frequency.

[0046] In this embodiment, if the target energy efficiency is not within the preset optimal energy efficiency range, it indicates that the target host's operating frequency is not energy-efficient and the generated energy efficiency is low. Therefore, it is necessary to turn on the slave air conditioners to assist the host air conditioner in achieving energy-efficient temperature regulation. The number of slave air conditioners to be turned on and their operating frequency are determined based on the host's target temperature regulation capability and the maximum energy-saving temperature regulation capability. Specifically, the number of slave air conditioners to be turned on is determined based on the ratio of the host's target temperature regulation capability to the maximum energy-saving temperature regulation capability, and the operating frequency of the slave air conditioners is allocated according to the number of slave air conditioners to be turned on, thereby controlling the operation of the slave air conditioners so that their operating energy efficiency is within the preset optimal energy efficiency range. By determining the number of slave air conditioners to be turned on and their operating frequency based on the host's target temperature regulation capability and the maximum energy-saving temperature regulation capability, better control of multiple air conditioners in the computer room can be achieved, and the indoor ambient temperature can be adjusted to the target set temperature under the most energy-efficient conditions.

[0047] In one embodiment, such as Figure 3 As shown, step S130 includes steps S131-S135.

[0048] S131. Determine the expected number of slave air conditioners to be turned on based on the host's target temperature regulation capability and the maximum energy-saving temperature regulation capability;

[0049] S132. Obtain the first differential energy efficiency based on the host target temperature regulation capability, the expected number of activations, and the maximum energy-saving temperature regulation capability;

[0050] S133. Determine whether the first difference energy efficiency is within the preset optimal energy efficiency range;

[0051] S134. If the first difference energy efficiency is within the preset optimal energy efficiency range, then determine the first number of times the slave air conditioner is turned on based on the expected number of times it is turned on.

[0052] S135. Control one of the slave air conditioners to operate at the frequency corresponding to the first differential energy efficiency according to the first number of activations, and control the remaining slave air conditioners to operate at the frequency corresponding to the maximum energy-saving temperature regulation capability.

[0053] In this embodiment, for clarity and ease of description, the host target temperature regulation capability will be referred to as Q in the following text. 目标 The maximum energy-saving temperature regulation capability is abbreviated as Q. Emax If the target energy efficiency of the host is less than the first preset energy efficiency, according to Q... 目标 With Q Emax The ratio of Q to n determines the expected number of slave air conditioners to be turned on, where the expected number of slave air conditioners to be turned on is represented by n. Specifically, Q 目标 / Q Emax The result is an integer n, for example, Q 目标 / Q Emax If the result is 2.3, then take the integer 2. Calculate (Q) using the formula (1). 目标 -n*Q Emax The corresponding frequency is then obtained using the preset formula (2) (Q) 目标 -n*Q Emax The corresponding energy efficiency, the (Q) 目标 -n*Q Emax The corresponding energy efficiency is the first difference energy efficiency. It is determined whether the first difference energy efficiency is within the preset optimal energy efficiency range. If the first difference energy efficiency is within the preset optimal energy efficiency range, it means that turning on n slave air conditioners will all be within the preset optimal energy efficiency range. At this time, the first number of slave air conditioners to be turned on is n. One slave air conditioner is controlled to operate at the frequency corresponding to the first difference energy efficiency, that is, the frequency of one slave air conditioner is (Q... 目标 -n*Q EmaxThe operating frequency of the main air conditioner is determined to be the frequency corresponding to the maximum energy-saving temperature regulation capability. By determining that the first difference energy efficiency is within the preset optimal energy-saving energy efficiency range, the energy efficiency of both the slave air conditioners and the main air conditioner can be controlled within this range to achieve energy saving.

[0054] In one embodiment, such as Figure 3 As shown, step S133 is followed by steps S136-S139.

[0055] S136. If the first difference energy efficiency is less than the lower limit of the preset optimal energy efficiency range, determine the second number of times the slave air conditioner will be turned on based on the expected number of times it will be turned on.

[0056] S137. Determine the number of slave air conditioners to be adjusted based on the host target temperature regulation capability, the second number of activations, and the maximum energy-saving temperature regulation capability.

[0057] S138. Obtain the second differential energy efficiency based on the host target temperature regulation capability, the number of slave air conditioners to be adjusted, and the maximum energy-saving temperature regulation capability.

[0058] S139. Control the operation of the slave air conditioners according to the frequency corresponding to the second difference energy efficiency based on the number of slave air conditioners to be adjusted, and control the remaining slave air conditioners to operate at the frequency corresponding to the maximum energy-saving temperature adjustment capability.

[0059] In this embodiment, if the first difference energy efficiency is less than the lower limit of the preset optimal energy efficiency range, it means that if n slave units are turned on, one of the slave units will have a very low operating frequency and will not save energy. Therefore, one slave unit air conditioner is turned off, and the operating frequency of the remaining slave unit air conditioners is redistributed so that all the turned-on slave unit air conditioners are within the preset optimal energy efficiency range. Therefore, the second number of units turned on is n-1. The number of slave unit air conditioners to be turned on is determined according to the host target temperature adjustment capability, the second number of units turned on, and the maximum energy-saving temperature adjustment capability. Specifically, the slave unit air conditioner to be adjusted is represented by x, and the lowest value of the preset optimal energy efficiency range is represented by E2. The value of (Q) is calculated according to the formula (1). 目标 -(nx)*Q Emax The corresponding frequency is () / x), and then ((Q) is obtained according to the formula (2). 目标 -(nx)*Q Emax The energy efficiency corresponding to () / x) is mentioned above. 目标 -(nx)*Q EmaxThe energy efficiency corresponding to ) / x) is the second energy efficiency difference, and the preset formula is E((Q 目标 -(nx)*Q Emax The number of air conditioners to be adjusted, x, can be calculated according to the preset formula. Specifically, if x is 1 at this time, E((Q) / x)≥E2. 目标 -(n-1)*Q Emax If E(Q) ≥ E2, then only one of the slave air conditioners needs to be turned on; if E(Q) ≥ E2, then only one slave air conditioner needs to be turned on. 目标 -(n-1)*Q Emax If E(Q) < E2, then calculate E((Q) 目标 -(n-2)*Q Emax If the result is still less than E2, continue the calculation until E((Q) / 2). 目标 -(nx)*Q Emax ) / x)≥E2. Control the slave air conditioner to be adjusted to operate at the frequency corresponding to the second energy difference efficiency, that is, the operating frequency of the slave air conditioner to be adjusted is ((Q) / x)≥E2. 目标 -(nx)*Q Emax The frequency corresponding to () / x). The remaining slave air conditioners are controlled to operate at the frequency corresponding to the maximum energy-saving temperature regulation capability. At this time, the operating frequency of the main air conditioner is the frequency corresponding to the maximum energy-saving temperature regulation capability. By turning off one slave air conditioner when the first difference energy efficiency is at the lower limit of the preset optimal energy-saving energy efficiency range, and redistributing the operating frequencies of the remaining slave air conditioners, so that all the activated slave air conditioners are within the preset optimal energy-saving energy efficiency range, multiple air conditioners can be better controlled, and the goal of energy saving can be achieved while controlling the temperature.

[0060] The above implementation scheme is for the case where the host target energy efficiency is less than the first preset energy-saving energy efficiency. To improve the completeness of the invention, the present invention also provides another implementation scheme where the host target energy efficiency is between E1 and E2. This scheme includes the following steps S210-230, wherein S210, S220, and S230 are similar to the above scheme and will not be described again. The steps modified in this embodiment are described in detail below.

[0061] S210. If the operating frequency of the main unit of the air conditioner reaches the target operating frequency, determine the adjustment time required for the main unit air conditioner to adjust the temperature at the target operating frequency to reach the target set temperature based on the obtained indoor ambient temperature and target set temperature.

[0062] S220. If the adjustment duration is greater than the preset adjustment duration, determine the host target energy efficiency and host target temperature adjustment capability corresponding to the target host operating frequency based on the target host operating frequency, and obtain the maximum energy-saving temperature adjustment capability of the host air conditioner.

[0063] In one embodiment, such as Figure 4 As shown, after step S220, steps S2201-S2202 are included.

[0064] S2201. Determine whether the target energy efficiency of the host is between the first preset energy efficiency and the second preset energy efficiency, wherein the second preset energy efficiency is the lower limit of the preset optimal energy efficiency range;

[0065] S2202. If the target energy efficiency of the host is between the first preset energy-saving energy efficiency and the second preset energy-saving energy efficiency, then it is determined that the target energy efficiency of the host is not within the preset optimal energy-saving energy efficiency range.

[0066] In this embodiment, if the host target energy efficiency is greater than the first preset energy-saving energy efficiency, it is determined whether the host target energy efficiency is between the first preset energy-saving energy efficiency and the second preset energy-saving energy efficiency. The second preset energy efficiency is the lower limit of the preset optimal energy-saving energy efficiency range, meaning it is greater than the first preset energy-saving energy efficiency. Specifically, the second preset energy efficiency is the lowest value of the preset optimal energy-saving energy efficiency range, which is the interval between the maximum energy-saving energy efficiency and the optimal energy-saving energy efficiency. If the host target energy efficiency is between the first preset energy-saving energy efficiency and the second preset energy-saving energy efficiency, it means the host target energy efficiency is not within the preset optimal energy-saving energy efficiency range, and therefore, it is determined that the host target energy efficiency is not within the preset optimal energy-saving energy efficiency range. By determining whether the host target energy efficiency falls within different intervals of the energy-saving energy efficiency range, different operations can be performed based on different combinations to achieve energy-saving effects.

[0067] S230. If the target energy efficiency is not within the preset optimal energy efficiency range, determine the number of slave air conditioners to be turned on and the slave air conditioner operating frequency based on the host target temperature regulation capability and the maximum energy-saving temperature regulation capability, and control the operation of the slave air conditioner based on the number of turns on and the slave air conditioner operating frequency.

[0068] In one embodiment, such as Figure 5 As shown, step S230 includes steps S231-S233.

[0069] S231. Obtain the third differential energy efficiency based on the host target capability and the maximum energy-saving temperature regulation capability;

[0070] S232. Determine whether the third difference energy efficiency is above the host target energy efficiency;

[0071] S233. If the third differential energy efficiency is above the host target energy efficiency, then control one of the slave air conditioners to operate at the frequency corresponding to the third differential energy efficiency.

[0072] In this embodiment, if the host air conditioner's target energy efficiency is within the energy-saving range but not within the preset optimal energy-saving efficiency range, it indicates that the host air conditioner's target energy efficiency has not reached the maximum energy-saving efficiency of the host air conditioner. Therefore, it is necessary to determine whether controlling the host air conditioner's operating frequency and adjusting the host air conditioner's target energy efficiency to the maximum value within the energy-saving range will adjust the indoor ambient temperature to the target set temperature within the preset adjustment time. Therefore, based on the host air conditioner's target capacity and the maximum energy-saving temperature adjustment capacity, a third difference energy efficiency is obtained. (Q) is calculated according to formula (1). 目标 -Q Emax The frequency corresponding to ) is obtained by using the formula (2) (Q) 目标 -Q Emax The energy efficiency corresponding to ) is the third differential energy efficiency E(Q). 目标 -Q Emax If the third difference energy efficiency is less than the target energy efficiency of the main unit, it means that if the energy efficiency of the main unit air conditioner is controlled to the maximum value within the energy-saving range, the indoor ambient temperature can be adjusted to the target set temperature within the preset adjustment time, without needing to turn on the slave air conditioner. If the third difference energy efficiency is greater than the target energy efficiency of the main unit, it means that even if the energy efficiency of the main unit air conditioner is controlled to the maximum value within the energy-saving range, the indoor ambient temperature still cannot be adjusted to the target set temperature within the preset adjustment time, so the slave air conditioner needs to be turned on for assistance. If the slave air conditioner needs to be turned on, one slave air conditioner is turned on and controlled to operate at the frequency corresponding to the third difference energy efficiency. At this time, the operating frequency of the main unit air conditioner is the frequency corresponding to the maximum energy-saving temperature adjustment capability. By determining whether the indoor ambient temperature can be adjusted to the target set temperature within the preset adjustment time when the target energy efficiency of the main unit air conditioner is adjusted to the maximum value within the energy-saving range, the energy efficiency of both the main unit air conditioner and the slave air conditioner can be controlled within the energy-saving efficiency range, achieving the purpose of energy saving.

[0073] like Figure 6 As shown, steps S1301-S1303 are included after step S130.

[0074] S1301. When the indoor ambient temperature reaches the target set temperature, determine whether to turn on the slave air conditioner according to the number of activations.

[0075] S1302. If the slave air conditioner is not turned on, determine whether the operating frequency of the master air conditioner is at the upper limit of the energy-saving frequency range;

[0076] S1303. If the operating frequency of the main air conditioner is at the upper limit of the energy-saving frequency range, obtain the fourth differential energy efficiency based on the target capacity of the main unit and the maximum energy-saving temperature adjustment capacity; and control one of the slave air conditioners to operate at the frequency corresponding to the fourth differential energy efficiency.

[0077] In this embodiment, the energy-saving frequency range is the frequency range corresponding to the energy-saving efficiency range calculated according to the formula (2). When the indoor ambient temperature reaches the target set temperature, it is determined whether the slave air conditioner is turned on based on the number of times it is turned on. If the number of times it is turned on is 1, it means that only the main air conditioner is turned on. If the number of times it is turned on is greater than 1, it means that the slave air conditioner is turned on. If the slave air conditioner is not turned on, it is determined whether the operating frequency of the main air conditioner is at the upper limit of the energy-saving frequency range. If the operating frequency of the main air conditioner is at the upper limit of the energy-saving frequency range, it means that the current operating frequency of the main air conditioner is not within the energy-saving frequency range. It is necessary to turn on a slave air conditioner to assist the main air conditioner in adjusting the temperature so that the operating frequency of the main air conditioner is within the energy-saving frequency range. The fourth difference energy efficiency is obtained based on the target capability of the main unit and the maximum energy-saving temperature adjustment capability. Specifically, (Q) is calculated according to the formula (1). 目标 -Q Emax The frequency corresponding to ) is obtained from the formula (2) (Q) 目标 -Q Emax The energy efficiency corresponding to the fourth differential energy efficiency is determined by the frequency corresponding to the fourth differential energy efficiency. The slave air conditioner is controlled to operate at the frequency corresponding to the fourth differential energy efficiency, while the main air conditioner operates at the frequency corresponding to the maximum energy-saving temperature regulation capability. By determining the operating frequency of the main air conditioner, the energy efficiency of both the main and slave air conditioners can be controlled within the energy-saving efficiency range, achieving the goal of energy saving.

[0078] It is important to note that if the slave air conditioner is turned on, it is necessary to determine whether the operating frequency of both the master and slave air conditioners is lower than the lower limit of the energy-saving frequency range. In other words, it is necessary to determine whether the master and slave air conditioners have entered a low-power mode. If the operating frequency of both the master and slave air conditioners is lower than the lower limit of the energy-saving frequency range, it means that both the master and slave air conditioners have entered a low-power mode. In this case, the slave air conditioner can be turned off, leaving only the master air conditioner running. By turning off the low-power slave air conditioner, the goal of energy saving can be better achieved.

[0079] To further describe the technical concept of this application, by referring to Figure 7 , Figure 7 This is a graph showing the air conditioner's capacity / energy efficiency versus frequency. As the graph shows, the air conditioner's temperature regulation capacity increases with increasing operating frequency, while its energy efficiency does not increase with frequency. The energy efficiency curve is parabolic, gradually increasing to its maximum value (optimal energy efficiency E) with increasing operating frequency. max After reaching its peak, the energy efficiency gradually decreases as the operating frequency continues to increase. Therefore, based on this phenomenon, this application proposes to reduce the operating frequency of each unit by activating the slave unit, thereby achieving energy-saving operation of the computer room air conditioning.

[0080] In addition to the above embodiments, the present invention also provides a method for obtaining the indoor ambient temperature, which facilitates more accurate acquisition of the indoor ambient temperature for temperature control, keeping the computer room temperature within a more reasonable range. The method is as follows: the return air temperature (T) collected by two or more air conditioners is used to calculate the weighted room temperature (T-weighted). Specifically, T-weighted = A*T_master + B*T_slave1 + C*T_slave2 + ..., where A+B+C+... = 1, and A, B, C, etc. represent the proportion of the return air temperature of each air conditioner in the weighted temperature. If only one slave is turned on, then A = 0.5, B = 0.5. If the number of slaves turned on is ≥2, then A = 0.4, B = C = ... = 0.6 / number of slaves. It should be noted that for the calculated T-weighted effect applied to the current air conditioner, the current air conditioner is the master, and the other air conditioners are slaves.

[0081] Figure 8 This is a schematic block diagram of an operation control device 300 for a computer room air conditioner provided in an embodiment of the present invention. Figure 8 As shown, corresponding to the above-described operation control method for a computer room air conditioner, the present invention also provides an operation control device for a computer room air conditioner. This operation control device includes a unit for executing the above-described operation control method for a computer room air conditioner, and the device can be configured in an air conditioner. Specifically, please refer to... Figure 8 The operation control device for the computer room air conditioner includes a duration acquisition unit 310, a capability acquisition unit 320, and a control unit 330.

[0082] The duration acquisition unit 310 is used to determine the adjustment duration required for the main unit air conditioner to adjust the temperature at the target main unit operating frequency to reach the target set temperature, based on the acquired indoor ambient temperature and the target set temperature, if the main unit operating frequency of the main unit air conditioner reaches the target main unit operating frequency.

[0083] The capability acquisition unit 320 is used to determine the host target energy efficiency and host target temperature adjustment capability corresponding to the target host operating frequency based on the target host operating frequency if the adjustment duration is greater than the preset adjustment duration, and to acquire the maximum energy-saving temperature adjustment capability of the host air conditioner.

[0084] In one embodiment, the capability acquisition unit 320 is followed by a first judgment unit, a first comparison unit, a second judgment unit, and a second comparison unit.

[0085] The first judgment unit is used to judge whether the host target energy efficiency is less than the first preset energy efficiency, wherein the first preset energy efficiency is less than the lower limit of the preset optimal energy efficiency range;

[0086] The first comparison unit is used to determine that the host target energy efficiency is not within the preset optimal energy efficiency range if the host target energy efficiency is less than the first preset energy efficiency.

[0087] The second judgment unit is used to determine whether the host target energy efficiency is between the first preset energy-saving energy efficiency and the second preset energy-saving energy efficiency, wherein the second preset energy-saving energy efficiency is the lower limit of the preset optimal energy-saving energy efficiency range;

[0088] The second comparison unit is used to determine that the host target energy efficiency is not within the preset optimal energy efficiency range if the host target energy efficiency is between the first preset energy efficiency and the second preset energy efficiency.

[0089] If the adjustment duration is greater than the preset adjustment duration, the control unit 330 determines the host target energy efficiency and host target temperature adjustment capability corresponding to the target host operating frequency based on the target host operating frequency, and obtains the maximum energy-saving temperature adjustment capability of the host air conditioner.

[0090] In one embodiment, the control unit 330 includes a first determining unit, a first acquiring unit, a first energy efficiency judging unit, a first control unit, and a first control subunit.

[0091] The first determining unit is used to determine the expected number of slave air conditioners to be turned on based on the host target temperature regulation capability and the maximum energy-saving temperature regulation capability.

[0092] The first acquisition unit is used to acquire a first differential energy efficiency based on the host target temperature regulation capability, the expected number of on-screen devices, and the maximum energy-saving temperature regulation capability.

[0093] The first energy efficiency judgment unit is used to determine whether the first difference energy efficiency is within the preset optimal energy efficiency range;

[0094] The first control unit is configured to determine the first number of times the slave air conditioner will be turned on based on the expected number of times it will be turned on if the first difference energy efficiency is within the preset optimal energy efficiency range.

[0095] The first control subunit is configured to control one of the slave air conditioners to operate at the frequency corresponding to the first differential energy efficiency according to the first number of activations, and to control the remaining slave air conditioners to operate at the frequency corresponding to the maximum energy-saving temperature regulation capability.

[0096] In one embodiment, the control unit 330 includes a first energy efficiency judgment subunit, a second acquisition unit, a second energy efficiency judgment unit, and a second control unit.

[0097] The first energy efficiency judgment subunit is used to determine the second number of times the slave air conditioner is turned on based on the expected number of times it is turned on if the first difference energy efficiency is less than the lower limit of the preset optimal energy-saving energy efficiency range.

[0098] The second acquisition unit is used to determine the number of slave air conditioners to be adjusted based on the host target temperature adjustment capability, the second number of activations, and the maximum energy-saving temperature adjustment capability.

[0099] The second energy efficiency judgment unit is used to obtain the second differential energy efficiency based on the host target temperature adjustment capability, the number of slave air conditioners to be adjusted, and the maximum energy-saving temperature adjustment capability.

[0100] The second control unit is used to control the operation of the slave air conditioners according to the frequency corresponding to the second difference energy efficiency based on the number of slave air conditioners to be adjusted, and to control the remaining slave air conditioners to operate at the frequency corresponding to the maximum energy-saving temperature adjustment capability.

[0101] In one embodiment, the control unit 330 includes a third acquisition unit, a third energy efficiency judgment unit, and a third control unit.

[0102] The third acquisition unit acquires a third differential energy efficiency based on the host target capability and the maximum energy-saving temperature regulation capability;

[0103] The third energy efficiency judgment unit is used to determine whether the third difference energy efficiency is above the host target energy efficiency;

[0104] The third control unit is configured to control one of the slave air conditioners to operate at the frequency corresponding to the third differential energy efficiency if the third differential energy efficiency is higher than the host target energy efficiency.

[0105] In one embodiment, the control unit 330 is followed by a quantity determination unit, a first frequency determination unit, and an activation unit.

[0106] The quantity determination unit is used to determine whether to turn on the slave air conditioner based on the number of times it is turned on when the indoor ambient temperature reaches the target set temperature.

[0107] The first frequency determination unit is used to determine whether the operating frequency of the main air conditioner is at the upper limit of the energy-saving frequency range if the slave air conditioner is not turned on.

[0108] The activation unit is used to, if the operating frequency of the main air conditioner is at the upper limit of the energy-saving frequency range, obtain a fourth differential energy efficiency based on the target capability of the main unit and the maximum energy-saving temperature adjustment capability; and control one of the slave air conditioners to operate at the frequency corresponding to the fourth differential energy efficiency.

[0109] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the above-mentioned computer room air conditioner operation control device 300 and each unit can be referred to the corresponding description in the foregoing method embodiments. For the sake of convenience and brevity, it will not be repeated here.

[0110] The aforementioned control device for the operation of the computer room air conditioner can be implemented as a computer program, which can be used in, for example... Figure 9 It runs on the computer device shown.

[0111] Please see Figure 9 , Figure 9 This is a schematic block diagram of a computer device provided in an embodiment of this application. The computer device 500 can be a terminal or a server. The terminal can be an electronic device with communication functions, such as a smartphone, tablet, laptop, desktop computer, personal digital assistant, or wearable device. The server can be a standalone server or a server cluster composed of multiple servers.

[0112] See Figure 9 The computer device 500 includes a processor 502, a memory, and a network interface 505 connected via a system bus 501. The memory may include a non-volatile storage medium 503 and internal memory 504.

[0113] The non-volatile storage medium 503 may store an operating system 5031 and a computer program 5032. The computer program 5032 includes program instructions that, when executed, cause the processor 502 to perform an operation control method for a computer room air conditioner.

[0114] The processor 502 provides computing and control capabilities to support the operation of the entire computer device 500.

[0115] The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503. When the computer program 5032 is executed by the processor 502, the processor 502 can execute a method for controlling the operation of a computer room air conditioner.

[0116] This network interface 505 is used for network communication with other devices. Those skilled in the art will understand that... Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device 500 to which the present application is applied. The specific computer device 500 may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0117] The processor 502 is used to run a computer program 5032 stored in a memory to implement the steps of the above method.

[0118] It should be understood that in the embodiments of this application, the processor 502 may be a central processing unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0119] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program includes program instructions and can be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.

[0120] Therefore, the present invention also provides a storage medium. This storage medium can be a computer-readable storage medium. The storage medium stores a computer program, wherein the computer program includes program instructions. When executed by a processor, the program instructions cause the processor to perform the steps of the method described above.

[0121] The storage medium can be any computer-readable storage medium capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory (ROM), magnetic disk, or optical disk.

[0122] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. 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 implementations should not be considered beyond the scope of this invention.

[0123] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0124] The steps in the method of this invention can be adjusted, merged, or reduced in order according to actual needs. The units in the device of this invention can be merged, divided, or reduced according to actual needs. Furthermore, the functional units in the various embodiments of this invention 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.

[0125] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a terminal, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention.

[0126] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for controlling the operation of a computer room air conditioner, the computer room air conditioner comprising a main air conditioner and slave air conditioners, characterized in that, include: If the operating frequency of the main unit of the air conditioner reaches the target operating frequency, the adjustment time required for the main unit air conditioner to adjust the temperature at the target operating frequency to reach the target set temperature is determined based on the obtained indoor ambient temperature and the target set temperature. If the adjustment duration is greater than the preset adjustment duration, the host target energy efficiency and host target temperature adjustment capability corresponding to the target host operating frequency are determined according to the target host operating frequency, and the maximum energy-saving temperature adjustment capability of the host air conditioner is obtained. If the host target energy efficiency is not within the preset optimal energy efficiency range, the number of slave air conditioners to be turned on and the slave operating frequency are determined according to the host target temperature regulation capability and the maximum energy-saving temperature regulation capability, and the operation of the slave air conditioners is controlled according to the number of turns on and the slave operating frequency.

2. The method of claim 1, wherein, After the steps of determining the target energy efficiency and target temperature regulation capability of the host air conditioner corresponding to the target host operating frequency, and obtaining the maximum energy-saving temperature regulation capability of the host air conditioner, the following steps are included: Determine whether the host target energy efficiency is less than a first preset energy efficiency, wherein the first preset energy efficiency is less than the lower limit of the preset optimal energy efficiency range; If the host target energy efficiency is less than the first preset energy-saving energy efficiency, then it is determined that the host target energy efficiency is not within the preset optimal energy-saving energy efficiency range.

3. The method of claim 2, wherein, The step of determining the number of slave air conditioners to be turned on and the operating frequency of the slave air conditioners based on the host target temperature regulation capability and the maximum energy-saving temperature regulation capability includes: Based on the host's target temperature regulation capability and the maximum energy-saving temperature regulation capability, determine the expected number of slave air conditioners to be turned on; Based on the host's target temperature regulation capability, the expected number of devices to be turned on, and the maximum energy-saving temperature regulation capability, a first differential energy efficiency is obtained. Determine whether the first difference energy efficiency is within the preset optimal energy efficiency range; If the first difference energy efficiency is within the preset optimal energy efficiency range, then the first number of slave air conditioners to be turned on is determined according to the expected number of turns on. Based on the first number of activations, one of the slave air conditioners is controlled to operate at the frequency corresponding to the first differential energy efficiency, and the remaining slave air conditioners are controlled to operate at the frequency corresponding to the maximum energy-saving temperature regulation capability.

4. The method of claim 3, wherein, After the step of determining whether the first difference energy efficiency is within the optimal energy-saving efficiency range, the method further includes: If the first difference energy efficiency is less than the lower limit of the preset optimal energy efficiency range, the second number of times the slave air conditioner is turned on is determined according to the expected number of times it is turned on. The number of slave air conditioners to be adjusted is determined based on the host target temperature regulation capability, the second number of activated units, and the maximum energy-saving temperature regulation capability. The second differential energy efficiency is obtained based on the host target temperature regulation capability, the number of slave air conditioners to be adjusted, and the maximum energy-saving temperature regulation capability. Based on the number of slave air conditioners to be adjusted, control the slave air conditioners to operate at the frequency corresponding to the second difference energy efficiency, and control the remaining slave air conditioners to operate at the frequency corresponding to the maximum energy-saving temperature regulation capability.

5. The method as claimed in claim 2, wherein, After the steps of determining the target energy efficiency and target temperature regulation capability of the host air conditioner corresponding to the target host operating frequency, and obtaining the maximum energy-saving temperature regulation capability of the host air conditioner, the method further includes: Determine whether the host target energy efficiency is between the first preset energy efficiency and the second preset energy efficiency, wherein the second preset energy efficiency is the lower limit of the preset optimal energy efficiency range; If the host target energy efficiency is between the first preset energy efficiency and the second preset energy efficiency, then it is determined that the host target energy efficiency is not within the preset optimal energy efficiency range.

6. The method of claim 5, wherein, The step of determining the number of slave air conditioners to be turned on and the slave air conditioner operating frequency based on the host's target temperature regulation capability and the maximum energy-saving temperature regulation capability, and controlling the operation of the slave air conditioners based on the number of turned-on and the slave air conditioner operating frequency, if the host's target energy efficiency is not within the preset optimal energy-saving energy efficiency range, includes: The third difference energy efficiency is obtained based on the host's target temperature regulation capability and the maximum energy-saving temperature regulation capability; Determine whether the third difference energy efficiency is above the host target energy efficiency; If the third differential energy efficiency is higher than the host target energy efficiency, then one of the slave air conditioners is controlled to operate at the frequency corresponding to the third differential energy efficiency.

7. The method as claimed in claim 2, wherein, The step of controlling the operation of the slave air conditioner according to the number of units activated and the slave unit operating frequency further includes: When the indoor ambient temperature reaches the target set temperature, determine whether to turn on the slave air conditioner based on the number of units activated. If the slave air conditioner is not turned on, determine whether the operating frequency of the master air conditioner is at the upper limit of the energy-saving frequency range, wherein the energy-saving frequency range is the frequency range corresponding to the energy-saving efficiency range, the energy-saving efficiency range is the interval from the first preset energy-saving efficiency to the preset optimal energy-saving efficiency, and the preset optimal energy-saving efficiency is the lower limit of the preset optimal energy-saving efficiency range. If the operating frequency of the main air conditioner is at the upper limit of the energy-saving frequency range, a fourth differential energy efficiency is obtained based on the main air conditioner's target temperature regulation capability and the maximum energy-saving temperature regulation capability; and one of the slave air conditioners is controlled to operate at the frequency corresponding to the fourth differential energy efficiency.

8. An operation control device for a computer room air conditioner, the computer room air conditioner comprising a main air conditioner and slave air conditioners, characterized in that, include: The duration acquisition unit is used to determine the adjustment duration required for the main unit air conditioner to adjust the temperature at the target main unit operating frequency to reach the target set temperature, based on the acquired indoor ambient temperature and the target set temperature, if the main unit operating frequency of the main unit air conditioner reaches the target main unit operating frequency. The capability acquisition unit is used to determine the host target energy efficiency and host target temperature adjustment capability corresponding to the target host operating frequency based on the target host operating frequency if the adjustment duration is greater than the preset adjustment duration, and to acquire the maximum energy-saving temperature adjustment capability of the host air conditioner. The control unit is configured to determine the number of slave air conditioners to be turned on and the slave air conditioner operating frequency based on the host target temperature regulation capability and the maximum energy-saving temperature regulation capability if the host target energy efficiency is not within the preset optimal energy-saving energy efficiency range, and to control the operation of the slave air conditioner based on the number of turns on and the slave air conditioner operating frequency.

9. An air conditioner characterized by comprising: The air conditioner includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the method as described in any one of claims 1-7.

10. A storage medium, characterized by The storage medium stores a computer program, which includes program instructions that, when executed by a processor, can implement the method as described in any one of claims 1-7.

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