Control method and device of machine room air conditioner, air conditioner and storage medium

Abstract

Embodiments of the present application disclose a control method and device of a machine room air conditioner, an air conditioner and a storage medium. The method comprises: acquiring a peak-valley electricity price parameter of a current region, and determining a current electricity price period according to the peak-valley electricity price parameter; and adjusting a set temperature according to the current electricity price period. By implementing the method of the embodiments of the present application, the set temperature of the air conditioner is adjusted according to different strategies in different electricity price periods, so that the comprehensive electricity utilization rate of the peak-valley electricity price is improved, the comprehensive electricity fee is reduced, and energy is saved while maintaining normal operation of the machine room equipment.

Description

Technical Field

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

[0002] To ensure the normal, stable operation and reliability of equipment within the computer room, a relatively stable temperature must be maintained, i.e., a constant-temperature environment. Computer rooms, equipment rooms, and other special locations, due to the unique nature of their operating environment, generally require 24 / 7 operation, 365 days a year, or dual-unit rotation. Air conditioning electricity costs constitute a significant proportion of base station operating costs; therefore, improving air conditioning energy efficiency and reducing operational energy consumption is essential and of great significance for energy conservation and emission reduction. In many regions, electricity demand varies throughout the day, resulting in peak and off-peak electricity pricing. However, current air conditioning systems primarily adjust based on set temperatures and indoor ambient temperatures, without considering the impact of peak and off-peak electricity pricing on costs, leading to high overall electricity bills. Summary of the Invention

[0003] This invention provides a control method, device, air conditioner, and storage medium for a computer room air conditioner, aiming to solve the problem of high overall electricity costs for existing computer room air conditioners.

[0004] In a first aspect, embodiments of the present invention provide a control method for a computer room air conditioner, comprising:

[0005] Obtain the peak-valley electricity price parameters for the current region, and determine the current electricity price period based on the peak-valley electricity price parameters;

[0006] The set temperature is adjusted according to the current electricity price period.

[0007] Secondly, embodiments of the present invention also provide a control device for a computer room air conditioner, which includes a unit for performing the method described in the first aspect.

[0008] Thirdly, embodiments of the present invention also provide an air conditioner, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method described in the first aspect.

[0009] 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 method described in the first aspect.

[0010] This invention provides a control method, device, air conditioner, and storage medium for a data center air conditioner. The method includes: acquiring peak-valley electricity price parameters for the current region, and determining the current electricity price period based on the peak-valley electricity price parameters; adjusting the set temperature according to the current electricity price period. By adjusting the set temperature of the air conditioner according to different strategies during different electricity price periods, this invention can improve the overall energy utilization rate of peak-valley electricity prices, reduce overall electricity costs, and save energy while ensuring the normal operation of data center equipment. Attached Figure Description

[0011] 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.

[0012] Figure 1 This is a schematic diagram of the control process for a computer room air conditioner provided in an embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of a peak-valley electricity price table;

[0014] Figure 3 This is a schematic diagram of the sub-process of controlling the computer room air conditioner provided in an embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of the sub-process of controlling the computer room air conditioner provided in an embodiment of the present invention;

[0016] Figure 5 This is a schematic diagram of the sub-process of controlling the computer room air conditioner provided in an embodiment of the present invention;

[0017] Figure 6 A schematic diagram of a sub-process of the control method for a computer room air conditioner provided in an embodiment of the present invention;

[0018] Figure 7 A flowchart illustrating a control method for a computer room air conditioner according to another embodiment of the present invention;

[0019] Figure 8 A schematic diagram of a sub-process of the control method for a computer room air conditioner provided in an embodiment of the present invention;

[0020] Figure 9 A simplified control logic diagram of the control method for a computer room air conditioner provided in an embodiment of the present invention;

[0021] Figure 10 A schematic block diagram of a control device for a computer room air conditioner provided in an embodiment of the present invention;

[0022] Figure 11 This is a schematic block diagram of an air conditioner provided in an embodiment of the present invention. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] This invention provides a control method, device, air conditioner, and storage medium for a computer room air conditioner, which solves the problem of high overall electricity costs associated with existing computer room air conditioners. By adjusting the set temperature of the air conditioner according to different strategies during different electricity price periods, electricity costs are saved and costs are reduced.

[0028] To address the aforementioned issue of comprehensive electricity costs for computer room air conditioning, the technical solution of this invention is as follows:

[0029] Generally, base station air conditioners need to cool the equipment room environment year-round. Unlike typical household air conditioners, which require rapid cooling and therefore operate at high frequencies initially based on the temperature difference between the set temperature and the room temperature, base station air conditioners rely on frequency increases to maximize cooling capacity, resulting in lower unit energy efficiency. However, base station air conditioners do not have specific requirements for the rate of temperature drop; maintaining the ambient temperature within a suitable range is sufficient. Furthermore, base station electricity consumption typically varies between peak and off-peak electricity prices, allowing for energy-saving optimization and control through different control logics.

[0030] The specific solution is to control the frequency during peak electricity price periods, operating at low to medium frequencies for maximum efficiency. The frequency adjustment strategy is determined based on the changing trends of the set temperature and ambient temperature, thus saving on electricity costs. During off-peak periods, based on low-power operation logic, the frequency is appropriately increased to lower the ambient temperature to the lower limit of the target range, taking into account the current ambient temperature and the time remaining until the end of the off-peak electricity price period. This allows the air conditioner to operate at an even lower frequency after the off-peak period ends, achieving the lowest overall electricity cost.

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] Please see Figure 1 , Figure 1 This is a flowchart illustrating the control method for a computer room air conditioner provided in an embodiment of the present invention. The control method for the computer room air conditioner will be described in detail below. Figure 1 As shown, the method includes the following steps S110-S120.

[0033] S110. Obtain the peak-valley electricity price parameters for the current region, and determine the current electricity price period based on the peak-valley electricity price parameters;

[0034] In this embodiment, the peak-valley electricity price parameter is typically a peak-valley electricity price table, such as... Figure 2 As shown, the horizontal axis represents time (0-24 hours), and the vertical axis represents electricity price, with prices ranging from high to low: peak price, normal price, and off-peak price. Different time periods correspond to different electricity prices. This peak-valley electricity price table has three different price periods: peak period, normal period, and off-peak period. Peak period can be, for example, 10:00-12:00 and 14:00-19:00; normal period can be, for example, 8:00-10:00, 12:00-14:00, and 19:00-24:00; and off-peak period can be, for example, 0:00-8:00. Different regions have different peak and off-peak electricity prices. The current region usually refers to the region where the data center is located, for example, Street A. The table retrieves the peak and off-peak electricity price for Street A. Specifically, there are various ways to obtain peak and off-peak electricity price parameters, such as through the air conditioner's remote control, the air conditioner's host computer, or the air conditioner connecting to the internet via Wi-Fi, etc., which are not limited here. After obtaining the peak-valley electricity price parameters, the system reads these parameters and determines the current time period based on them. This current time period is then designated as the current motor time period. For example, if the current time is 9:00 AM, and 9:00 AM falls within the normal time period according to the peak-valley electricity price table, then the normal time period is the current electricity price time period.

[0035] S120. Adjust the set temperature according to the current electricity price period.

[0036] In this embodiment, after obtaining the current electricity price period, a corresponding strategy is formulated to adjust the air conditioner's set temperature based on the current electricity price period. The set temperature T is the temperature that the user sets the air conditioner to achieve. For example, if the user sets 26°C via remote control, this 26°C is the set temperature. After the set temperature is set, the compressor's operating frequency is fuzzily adjusted according to the indoor ambient temperature and the set temperature. This adjustment method is well-known to those skilled in the art and will not be elaborated further. The principle of the set temperature adjustment strategy is as follows: if the current electricity price period is a low-price period, the set temperature is lowered as much as possible to increase the air conditioner's cooling capacity, allowing the server room to store a certain amount of cooling capacity. This stored cooling capacity can then be used to sustain operation for a period when electricity prices are higher, thereby saving electricity costs. If the current electricity price period is a high-price period, the set temperature is raised while ensuring the normal operation of the equipment in the server room. This allows the set temperature to be lowered again when electricity prices are lower, thereby saving electricity costs. In other words, when electricity prices are low, cooling capacity is stored; when electricity prices are high, cooling is delayed.

[0037] By implementing the embodiments of the present invention, different operating strategies are formulated according to peak and valley electricity prices, so as to improve the comprehensive utilization rate of electricity under peak and valley electricity prices without increasing costs, and reduce the overall electricity cost without affecting the normal operation of computer room equipment.

[0038] In one embodiment, such as Figure 3 As shown, S120 includes steps S121a-S122a.

[0039] S121a. If the current electricity price period is a peak period, determine whether the obtained indoor ambient temperature is lower than the preset upper limit temperature of the computer room.

[0040] S122a. If the indoor ambient temperature is lower than the preset upper limit temperature of the computer room, the set temperature shall be gradually increased.

[0041] In this embodiment, if the current electricity price period is a peak period, a peak period adjustment strategy is executed accordingly. First, the indoor ambient temperature Tinner ring and the preset upper limit temperature Tupper limit of the computer room are obtained. The indoor ambient temperature is the temperature of the computer room, and the preset upper limit temperature refers to the upper limit of the temperature range within which the computer room equipment can maintain normal operation. For example, the temperature range is 10℃-40℃, where 40℃ is the preset upper limit temperature. Next, it is determined whether the indoor ambient temperature is lower than the preset upper limit temperature. If the indoor ambient temperature is lower than the preset upper limit temperature, it means that the temperature in the computer room still has room to rise. Even if the temperature continues to rise, it has not yet reached the preset upper limit temperature, and the normal operation of the computer room equipment can still be guaranteed. Therefore, the set temperature can be gradually increased. The higher the set temperature, the lower the power consumption, thus saving electricity costs.

[0042] For example, the current indoor ambient temperature T_inner ring and the set temperature T_set are detected. If T_inner ring ≤ T_upper limit (the value of T_upper limit is 30 to 40°C, preferably 35°C), then the set temperature Ta°C (the value of Ta is 1 to 20 minutes, preferably 10 minutes) is increased every ta (the value of Ta is 0 to 1°C, preferably 0.5°C) for a maximum increase of Tb°C (the value of Tb is 1 to 5°C, preferably 3°C).

[0043] In one embodiment, such as Figure 4 As shown, S120 includes steps S121b-S123b.

[0044] S121b. If the current electricity price period is a low-price period, then obtain the remaining time of the current period;

[0045] S122b: Determine whether the remaining time of the current time period is less than or equal to the preset time required for cooling storage in the computer room;

[0046] S123b. If the remaining time of the current period is less than or equal to the preset time required for cooling the computer room, the set temperature is gradually reduced.

[0047] In this embodiment, if the current electricity price period is a low-price period, a low-price period adjustment strategy is executed accordingly. First, the remaining time tb of the current period is obtained. Since the current electricity price period is a low-price period, the remaining time is the time remaining until the end of the low-price period. For example, if the current time is 3:00 AM and the low-price period ends at 8:00 AM, then the remaining time is 5 hours. The preset time tc required for cooling storage in the computer room refers to the time required for the computer room to store cold energy to maintain normal equipment operation, for example, 3 hours. After entering the low-price period, the remaining time decreases over time. When the remaining time becomes less than or equal to the preset time required for cooling storage in the computer room, the set temperature is gradually reduced. The purpose of tb ≤ tc is to prevent premature cooling storage if it begins before the preset time required, which could lead to premature cooling loss through the building envelope and other means before the peak period, resulting in wasted cooling energy. The lower the set temperature, the stronger the cooling capacity. Although the power consumption increases, electricity is cheaper at this time, and storing cold during periods of low electricity prices can save on electricity costs.

[0048] For example, the current time tb is obtained from the end of the low period. If tb ≤ the preset time tc required for cooling the computer room (tc is 1 to 8 hours, preferably 3 hours), then the set temperature Ta℃ (Ta is 0 to 1℃, preferably 0.5℃) is reduced every td (td is 1 to 20 minutes, preferably 10 minutes), and the temperature is reduced by a maximum of Tc℃ (Tc is 1 to 10℃, preferably 5℃).

[0049] In one embodiment, such as Figure 5 As shown, S120 includes steps S121c-S123c.

[0050] S121c. If the current electricity price period is a normal period, then the next electricity price period is determined according to the peak-valley electricity price parameters.

[0051] S122c. If the next electricity price period is the off-peak period, determine whether the indoor ambient temperature is lower than the preset upper limit temperature of the computer room.

[0052] S123c: If the indoor ambient temperature is lower than the preset upper limit temperature of the computer room, the set temperature is gradually increased.

[0053] In this embodiment, if the current electricity price period is a normal period, the normal period adjustment strategy is executed accordingly. The adjustment strategy for the normal period needs to be determined based on the next electricity price period. If the next electricity price period is a low-price period, the main strategy is delayed cooling; if the next electricity price period is a peak period, the main strategy is to store cooling capacity. Specifically, first, the peak-valley electricity price table is read to determine which period the current time falls into, and then the next period after the current time is obtained as the next electricity price period. For example, if the current time is 9:00 AM, and 9:00 AM is a normal period according to the peak-valley electricity price table, then the next period after this normal period is the peak period, which is the next electricity price period. If the current electricity price period is a normal period, and the next electricity price period is a low-price period, it means that the electricity price in the next electricity price period is cheaper. Therefore, during the relatively expensive normal period, the set temperature can be increased to reduce power consumption while ensuring the normal operation of the computer room equipment, so that the cooling capacity can be increased again during the cheaper low-price period, saving electricity costs. The specific control method is similar to steps S121a-S122a above. First, determine whether the indoor ambient temperature is lower than the preset upper limit temperature of the computer room. If the indoor ambient temperature is lower than the preset upper limit temperature of the computer room, it means that the temperature in the computer room still has room to rise. Even if the temperature continues to rise, it has not yet reached the preset upper limit temperature of the computer room, and the normal operation of the computer room equipment can still be guaranteed. Therefore, the set temperature can be gradually increased. The higher the set temperature, the lower the power consumption, thus saving electricity costs.

[0054] For example, if the next time period is determined and it is a low period, and if the inner ring of T is less than or equal to the upper limit of T, then the set temperature Ta℃ (Ta is 0 to 1℃, preferably 0.5℃) is increased every te (te is 1 to 30 min, preferably 15 min) for a maximum increase of Td℃ (Td is 1 to 5℃, preferably 2℃).

[0055] In one embodiment, such as Figure 6 As shown, S120 includes steps S124c-S126c.

[0056] S124c. If the next electricity price period is the peak period, then obtain the remaining time of the current period;

[0057] S125c: Determine whether the remaining time of the current time period is less than or equal to the preset time required for cooling storage in the computer room;

[0058] S126c. If the remaining time of the current period is less than or equal to the preset time required for cooling the computer room, the set temperature is gradually reduced.

[0059] In this embodiment, the current electricity price period is the normal period. If the next electricity price period is a peak period, it means that the electricity price will be higher in the next electricity price period. Therefore, during the normal period when the electricity price is relatively cheap, the set temperature can be lowered to store cooling capacity. This stored cooling capacity can then be used to maintain the temperature during the next peak period when the electricity price is higher, thus saving electricity costs. The specific control method is similar to the steps S121b-S123b described above. After entering the normal period, as time goes by, the remaining time of the normal period becomes smaller and smaller. When the remaining time of the normal period is less than or equal to the preset time required for cooling storage in the computer room, the cooling storage action is started, and the set temperature is gradually lowered. The lower the set temperature, the stronger the cooling capacity. Although the power consumption increases, the electricity price is cheap at this time, and cooling storage during the low-electricity-price period can save electricity costs.

[0060] For example, if the next period is a peak period, the current time tf is obtained from the end of the normal time. If tf ≤ the preset time tg required for cooling the computer room (tg is 1 to 3 hours, preferably 2 hours), the set temperature Ta℃ (Ta is 0 to 1℃, preferably 0.5℃) is reduced every th (th is 1 to 20 minutes, preferably 10 minutes), and the temperature is reduced by a maximum of Te℃ (Te is 1 to 10℃, preferably 2℃).

[0061] In one embodiment, such as Figure 7 As shown, the method further includes steps S130-S160.

[0062] S130. When switching from a low-electricity-price period to a high-electricity-price period, if the indoor ambient temperature is lower than the preset temperature, the compressor is controlled to run at the preset frequency.

[0063] S140, Obtain the remaining time and temperature change rate for the current time period;

[0064] S150. Determine the estimated temperature rise of the computer room based on the remaining time of the current period and the temperature change rate;

[0065] S160. Adjust the preset frequency according to the estimated temperature rise and the current cold storage capacity, wherein the current cold storage capacity is the temperature difference between the indoor ambient temperature and the set temperature.

[0066] In this embodiment, switching from a low-electricity-price period to a high-electricity-price period includes several scenarios: switching from a normal period to a peak period, switching from an off-peak period to a peak period, and switching from an off-peak period to a normal period. When switching from a low-electricity-price period to a high-electricity-price period, due to the aforementioned cold storage action, if the temperature drops too much, there may be a situation where T_inner loop < T_set, meaning the temperature in the computer room is lower than the set temperature. In this case, the compressor is first controlled to maintain operation at a preset frequency F, such as 1-60Hz, preferably 20Hz, which is set according to the actual configuration and requirements of the air conditioner. Then, the remaining time tk of the current period and the temperature change rate are obtained. The method for obtaining the remaining time of the current period is the same as in the above embodiment and will not be repeated here. The temperature change rate refers to the rate at which the temperature changes per unit time in the computer room. Specifically, the temperature of the computer room is first detected at a certain moment, and then after a unit time Δt, the temperature of the computer room is detected again. The difference between the two temperature detections is the temperature change ΔT, and the temperature change rate is ΔT / Δt. After obtaining the temperature change rate, the expected temperature rise in the computer room, Tf, can be estimated based on the temperature change rate and the remaining time in the current period, where Tf = tk * ΔT / Δt. As explained earlier, the computer room continuously has a stable heat source; therefore, assuming the air conditioning cooling capacity remains constant, the temperature in the computer room will gradually increase. Therefore, the adjustment strategy adopted in this embodiment is to first estimate how many degrees the computer room will rise, i.e., to first determine the expected temperature rise; then, to determine the current cold storage capacity of the computer room, which in this embodiment is the difference between the set temperature and the indoor ambient temperature, i.e., Tset - Tinner; finally, the expected temperature rise is compared with the current cold storage capacity, and the preset frequency is adjusted based on the comparison result.

[0067] In one embodiment, such as Figure 8 As shown, step S160 further includes steps S161-S162.

[0068] S161. If the difference between the estimated temperature rise and the current cold storage capacity is less than or equal to zero, then reduce the preset frequency.

[0069] S162. If the difference between the estimated temperature rise and the current cold storage capacity is between zero and the preset temperature rise threshold, then the preset frequency is maintained.

[0070] S163. If the difference between the estimated temperature rise and the current cold storage capacity is greater than the preset temperature rise threshold, then the preset frequency is increased.

[0071] In this embodiment, the estimated temperature rise is compared with the current cold storage capacity. If the estimated temperature rise is less than the current cold storage capacity, it indicates that the current cold storage capacity has a margin, meaning the current cooling capacity is sufficient, and the preset frequency can be further reduced to save electricity. The preset temperature rise threshold Tg is the acceptable temperature rise for the computer room. If the estimated temperature rise is greater than the current cold storage capacity, within the range of 0 to Tg, the temperature rise is acceptable, and the frequency can be maintained for energy saving. As the temperature in the computer room continues to gradually rise, gradually consuming the current cold storage capacity, until the estimated temperature rise exceeds the current cold storage capacity but falls outside the range of 0 to Tg, i.e., greater than Tg, the preset frequency is increased to improve cooling capacity and ensure that the temperature in the computer room remains within a suitable range.

[0072] For example, if switching from a normal or off-peak period to a peak period, or vice versa, there might be a situation where T_inner loop < T_set. In this case, the shutdown logic is not executed initially, and the frequency is maintained at F (where F ranges from 1 to 60 Hz, preferably 20 Hz). The time tk remaining until the end of the current period is detected, and simultaneously, the room temperature change ΔT within a time interval Δt (where Δt ranges from 1 to 5 minutes, preferably 3 minutes) is detected (i.e., the room temperature Tt0 is detected every Δt interval, from the current temperature T_inner loop to the room temperature before Δt). The expected temperature rise Tf = tk * ΔT / Δt is calculated. If Tf - (T_set - T_inner loop) ≤ 0, the maintenance frequency F is adjusted down by 2 Hz; if 0 < Tf - (T_set - T_inner loop) ≤ Tg (where Tg ranges from 1 to 10℃, preferably 4℃), the maintenance frequency F is maintained; if Tf - (T_set - T_inner loop) > Tg (where Tg ranges from 1 to 10℃, preferably 4℃), the maintenance frequency F is adjusted up by 2 Hz.

[0073] To further describe the computer room air conditioning control method of the present invention, refer to... Figure 9 The control logic of this control method will be briefly described below.

[0074] First, read the current electricity price period to determine if it is a peak period. If not, further determine if it is an off-peak period. If not, further determine if it is a normal period.

[0075] When the electricity price period is a peak period, first determine if the inner ring of T is less than or equal to the upper limit of T. If so, then increase the set temperature Ta℃ every ta time.

[0076] When the electricity price period is a low-price period, first obtain the current time tb until the end of the low-price period, then determine if tb ≤ tc. If so, then execute the action of reducing the set temperature Ta℃ every td time interval.

[0077] When the electricity price period is a normal period, first determine whether the next period is a low-temperature period or a peak period. If it is a low-temperature period, increase the set temperature Ta℃ every te time interval. If it is a peak period, first obtain the current time tf until the end of the normal period, then determine if tf ≤ tg, and decrease the set temperature Ta℃ every th time interval.

[0078] Figure 10 This is a schematic block diagram of a control device 200 for a computer room air conditioner provided in an embodiment of the present invention. Figure 10 As shown, corresponding to the above-described control method for computer room air conditioning, the present invention also provides a control device for computer room air conditioning. This control device includes a unit for executing the above-described control method for computer room air conditioning, and the device can be configured in an air conditioner. Specifically, please refer to... Figure 10 The control device for the computer room air conditioner includes a time period acquisition unit 201 and a temperature regulation unit 202.

[0079] The time period acquisition unit 201 is used to acquire the peak and valley electricity price parameters of the current region and determine the current electricity price time period based on the peak and valley electricity price parameters; the temperature adjustment unit 202 is used to adjust the set temperature according to the current electricity price time period.

[0080] In one embodiment, the temperature regulation unit 202 includes a first judgment unit and a first lifting unit.

[0081] The first judgment unit is used to determine whether the obtained indoor ambient temperature is lower than the preset upper limit temperature of the computer room if the current electricity price period is a peak period; the first increase unit is used to gradually increase the set temperature if the indoor ambient temperature is lower than the preset upper limit temperature of the computer room.

[0082] In one embodiment, the temperature adjustment unit 202 includes: a first time acquisition unit, a second judgment unit, and a first reduction unit.

[0083] The system includes a first time acquisition unit, which acquires the remaining time of the current electricity period if the current electricity price period is a low-price period; a second judgment unit, which judges whether the remaining time of the current period is less than or equal to the preset time required for cooling the computer room; and a first reduction unit, which gradually reduces the set temperature if the remaining time of the current period is less than or equal to the preset time required for cooling the computer room.

[0084] In one embodiment, the temperature adjustment unit 202 includes: a second time period acquisition unit, a third judgment unit, and a second enhancement unit.

[0085] The second time period acquisition unit is used to determine the next electricity price period based on the peak-valley electricity price parameters if the current electricity price period is a normal period; the third judgment unit is used to determine whether the indoor ambient temperature is lower than the preset upper limit temperature of the computer room if the next electricity price period is the off-peak period; and the second increase unit is used to gradually increase the set temperature if the indoor ambient temperature is lower than the preset upper limit temperature of the computer room.

[0086] In one embodiment, the temperature adjustment unit 202 includes: a second time acquisition unit, a fourth judgment unit, and a second reduction unit.

[0087] The second time acquisition unit is used to acquire the remaining time of the current time period if the next electricity price period is the peak period; the fourth judgment unit is used to judge whether the remaining time of the current time period is less than or equal to the preset time required for cooling in the computer room; the second reduction unit is used to gradually reduce the set temperature if the remaining time of the current time period is less than or equal to the preset time required for cooling in the computer room.

[0088] In one embodiment, the control device 200 for the computer room air conditioner further includes: a rate acquisition unit, a prediction unit, and a frequency adjustment unit.

[0089] The system includes a rate acquisition unit for acquiring the remaining time and temperature change rate of the current time period; an estimation unit for determining the estimated temperature rise of the computer room based on the remaining time and temperature change rate of the current time period; and a frequency adjustment unit for adjusting the preset frequency based on the estimated temperature rise and the current cold storage capacity, wherein the current cold storage capacity is the temperature difference between the indoor ambient temperature and the set temperature.

[0090] In one embodiment, the control device 200 for the computer room air conditioner further includes: a frequency reduction unit, a frequency increase unit, and a frequency maintenance unit.

[0091] The frequency reduction unit is used to reduce the preset frequency if the difference between the estimated temperature rise and the current cold storage capacity is less than or equal to zero; the frequency maintenance unit is used to maintain the preset frequency if the difference between the estimated temperature rise and the current cold storage capacity is between zero and a preset temperature rise threshold; and the frequency increase unit is used to increase the preset frequency if the difference between the estimated temperature rise and the current cold storage capacity is greater than the preset temperature rise threshold.

[0092] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the above-mentioned control device 200 for the computer room air conditioner 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.

[0093] The aforementioned control device for the computer room air conditioning can be implemented as a computer program, which can, for example... Figure 11 The air conditioner shown is running.

[0094] Please see Figure 11 , Figure 11 This is a schematic block diagram of an air conditioner provided in an embodiment of this application.

[0095] See Figure 11 The air conditioner 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.

[0096] 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 a control method for a computer room air conditioner.

[0097] The processor 502 is used to provide computing and control capabilities to support the operation of the entire air conditioner 500.

[0098] 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 control method for a computer room air conditioner.

[0099] This network interface 505 is used for network communication with other devices. Those skilled in the art will understand that... Figure 11 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 air conditioner 500 to which the present application is applied. The specific air conditioner 500 may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0100] The processor 502 is used to run a computer program 5032 stored in a memory to implement any embodiment of the control method for the computer room air conditioner described above.

[0101] 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.

[0102] 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.

[0103] 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 any embodiment of the control method for a computer room air conditioner described above.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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 an air conditioner to execute all or part of the steps of the methods described in the various embodiments of the present invention.

[0109] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0110] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims and their equivalents, this invention also intends to include these modifications and variations.

[0111] 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 control method for a computer room air conditioner, characterized in that, include: Obtain the peak-valley electricity price parameters for the current region, and determine the current electricity price period based on the peak-valley electricity price parameters; If the current electricity price period is a peak period, determine whether the obtained indoor ambient temperature is lower than the preset upper limit temperature of the computer room; If the indoor ambient temperature is lower than the preset upper limit temperature of the computer room, the set temperature will be gradually increased. If the current electricity price period is a low-price period, then obtain the remaining time of the current period; Determine whether the remaining time in the current time period is less than or equal to the preset time required for cooling the computer room; If the remaining time in the current period is less than or equal to the preset time required for cooling the computer room, the set temperature will be gradually reduced. If the current electricity price period is a normal period, then the next electricity price period is determined based on the peak-valley electricity price parameters; If the next electricity price period is the off-peak period, determine whether the indoor ambient temperature is lower than the preset upper limit temperature of the computer room; If the indoor ambient temperature is lower than the preset upper limit temperature of the computer room, the set temperature will be gradually increased. If the next electricity price period is the peak period, then obtain the remaining time of the current period; Determine whether the remaining time in the current time period is less than or equal to the preset time required for cooling in the computer room; If the remaining time in the current period is less than or equal to the preset time required for cooling the computer room, the set temperature will be gradually reduced. When switching from a low-electricity-price period to a high-electricity-price period, if the indoor ambient temperature is lower than the preset temperature, the compressor is controlled to run at the preset frequency; the remaining time and temperature change rate of the current period are obtained. The estimated temperature rise of the computer room is determined based on the remaining time of the current period and the temperature change rate; the preset frequency is adjusted based on the estimated temperature rise and the current cold storage capacity, wherein the current cold storage capacity is the temperature difference between the indoor ambient temperature and the set temperature.

2. The method according to claim 1, characterized in that, The step of adjusting the preset frequency based on the estimated temperature rise and the current cold storage capacity includes: If the difference between the estimated temperature rise and the current cold storage capacity is less than or equal to zero, then the preset frequency is reduced. If the difference between the estimated temperature rise and the current cold storage capacity is between zero and the preset temperature rise threshold, then the preset frequency is maintained. If the difference between the estimated temperature rise and the current cold storage capacity is greater than the preset temperature rise threshold, then the preset frequency is increased.

3. A control device for a computer room air conditioner, characterized in that, Includes units for performing the method as described in any one of claims 1-2.

4. An air conditioner, characterized in that, The air conditioner includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method as described in any one of claims 1-2.

5. A storage medium, characterized in that, 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 1-2.

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