CN117202618A - Control method and device of machine room air conditioner, air conditioner and storage medium - Google Patents

Abstract

The embodiment of the application discloses a control method and device of an air conditioner of a machine room, the air conditioner and a storage medium. The method comprises the following steps: acquiring peak-valley electricity price parameters of a current region, and determining a current electricity price period according to the peak-valley electricity price parameters; and adjusting the set temperature according to the current electricity price period. By implementing the method provided by the embodiment of the application, the set temperature of the air conditioner is regulated according to different strategies in different electricity price time periods, so that the comprehensive electric energy utilization rate of peak-valley electricity prices can be improved, the comprehensive electricity charge can be reduced, and the energy can be saved under the condition of maintaining the normal operation of equipment in a machine room.

Description

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

Technical Field

The present application relates to the field of air conditioning technologies, and in particular, to a method and an apparatus for controlling an air conditioner in a machine room, an air conditioner, and a storage medium.

Background

In order to ensure the normal and stable operation and reliability of the equipment in the machine room, the temperature in the machine room needs to be kept relatively stable, i.e. the machine room environment with constant temperature is maintained. Special places such as machine rooms and equipment rooms generally require 365 days in the whole year, 24 hours per day or double-wheel operation due to the special use environment. The electricity consumption and electricity cost of the air conditioner accounts for a large proportion of the operation cost of the base station, so that the energy efficiency of the air conditioner is improved, the operation energy consumption is reduced, and the air conditioner has great significance for energy conservation and emission reduction. In many areas, peak-to-valley electricity prices exist where electricity demand is different at different times of the day. However, the operation modes of the existing air conditioner are basically adjusted according to the set temperature and the indoor environment temperature, and the influence of peak-valley electricity price on the cost is not considered, so that the comprehensive electricity fee is high.

Disclosure of Invention

The embodiment of the application provides a control method and device of a machine room air conditioner, the air conditioner and a storage medium, and aims to solve the problem that the comprehensive electricity fee of the existing machine room air conditioner is high.

In a first aspect, an embodiment of the present application provides a method for controlling an air conditioner in a machine room, including:

acquiring peak-valley electricity price parameters of a current region, and determining a current electricity price period according to the peak-valley electricity price parameters;

and adjusting the set temperature according to the current electricity price period.

In a second aspect, an embodiment of the present application further provides a control device for an air conditioner in a machine room, where the control device includes a unit for executing the method in the first aspect.

In a third aspect, an embodiment of the present application further provides an air conditioner, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the method of the first aspect when executing the computer program.

In a fourth aspect, embodiments of the present application also provide a computer readable storage medium storing a computer program comprising program instructions which, when executed by a processor, implement the method of the first aspect described above.

The embodiment of the application provides a control method and device of an air conditioner of a machine room, the air conditioner and a storage medium. Wherein the method comprises the following steps: acquiring peak-valley electricity price parameters of a current region, and determining a current electricity price period according to the peak-valley electricity price parameters; and adjusting the set temperature according to the current electricity price period. According to the embodiment of the application, the set temperature of the air conditioner is regulated according to different strategies in different electricity price time periods, so that the comprehensive electric energy utilization rate of peak-to-valley electricity prices can be improved, the comprehensive electricity charge can be reduced, and the energy can be saved under the condition that the normal operation of equipment in a machine room is ensured to be maintained.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of control of an air conditioner in a machine room according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a peak-to-valley electricity price table;

fig. 3 is a schematic view of a sub-flow of control of an air conditioner in a machine room according to an embodiment of the present application;

fig. 4 is a schematic view of a sub-flow of control of an air conditioner in a machine room according to an embodiment of the present application;

fig. 5 is a schematic view of a sub-flow of control of an air conditioner in a machine room according to an embodiment of the present application;

fig. 6 is a schematic sub-flowchart of a control method of an air conditioner in a machine room according to an embodiment of the present application;

fig. 7 is a flowchart illustrating a control method of an air conditioner in a machine room according to another embodiment of the present application;

fig. 8 is a schematic sub-flowchart of a control method of an air conditioner in a machine room according to an embodiment of the present application;

fig. 9 is a control logic diagram of a control method of an air conditioner in a machine room according to an embodiment of the present application;

fig. 10 is a schematic block diagram of a control device of an air conditioner in a machine room provided by an embodiment of the present application;

fig. 11 is a schematic block diagram of an air conditioner according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

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

The embodiment of the application solves the problems of high comprehensive electricity charge of the existing machine room air conditioner by providing the control method, the device, the air conditioner and the storage medium of the machine room air conditioner, and adjusts the set temperature of the air conditioner according to different strategies in different electricity price time periods, so that the electricity charge is saved, and the cost is reduced.

The embodiment of the application aims to solve the problem of comprehensive electric charge of the air conditioner in the machine room, and the technical scheme is as follows:

generally, the base station air conditioner needs to cool down the machine room environment all the year round, and is different from the conventional household environment in use condition, the household air conditioner generally needs to consider the quick refrigerating effect, so that the running frequency can be selected according to the temperature difference between the set temperature and the indoor temperature in the initial stage of starting up, the high frequency can be generally operated as much as possible to ensure the refrigerating effect, the refrigerating capacity is improved in an ascending frequency mode in the initial stage of starting up, and the energy efficiency of the machine set is low. For a base station air conditioner, there is no requirement for the rate of temperature drop, as long as the ambient temperature can be maintained in a suitable temperature range. On the other hand, the electricity consumption environment of the base station generally has peak-valley electricity price intervals, and energy conservation optimization and regulation can be performed through different control logics.

The specific solution idea is that in the electricity price peak interval, the frequency adjustment strategy can be judged according to the change trend of the set temperature and the ambient temperature by controlling the middle-low frequency high-efficiency section in which the frequency is operated as much as possible, so that the electricity fee cost is saved. In the trough interval, on the basis of low-power consumption operation logic, according to the current ambient temperature and the ending time of electricity prices away from the trough, the ambient temperature is reduced to the lower limit of the target range by proper frequency rising, so that the air conditioner can operate at lower frequency after the ending of the trough time, and the lowest effect of comprehensive electricity fees is achieved.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a flow chart of a control method of an air conditioner in a machine room according to an embodiment of the application. The control method of the machine room air conditioner is described in detail below. As shown in fig. 1, the method includes the following steps S110 to S120.

S110, acquiring peak-valley electricity price parameters of the current region, and determining the current electricity price period according to the peak-valley electricity price parameters;

in this embodiment, the peak-to-valley electricity rate parameter is typically a peak-to-valley electricity rate table, which is shown in fig. 2, in which the abscissa represents electricity rates at times 0 to 24 and the ordinate represents electricity rates from high to low, respectively, peak electricity rates, normal electricity rates, and low electricity rates. The different time periods correspond to different electricity prices, and three different electricity price time periods are respectively a peak time period, a normal time period and a low time period in the peak-to-valley electricity price table, wherein the peak time period can be, for example, 10-12 hours and 14-19 hours; the time period is 8-10, 12-14, 19-24; the valley period may be, for example, 0-8. Different areas have different peak-to-valley electricity prices, and the current area is usually referred to as an area where a machine room is located, for example, an A street, and a peak-to-valley electricity price table of the A street is obtained. Specifically, there are various modes for acquiring peak-to-valley electricity price parameters, for example, the peak-to-valley electricity price parameters may be acquired through a remote controller of an air conditioner, or an upper computer of the air conditioner, or the air conditioner may be acquired through a WIFI connection to the internet, and the present application is not limited thereto. After the peak-to-valley electricity price parameter is obtained, the peak Gu Dianjia parameter is read, the current time is judged to be in which time period according to the peak-to-valley electricity price parameter, and the time period where the current time is taken as the current motor time period. For example, the current time is 9 a.m., the 9 a.m. points in the peak-to-valley electricity price table belong to the usual time period, and then the usual time period is the current electricity price period.

And S120, adjusting the set temperature according to the current electricity price period.

In this embodiment, after the current electricity price period is acquired, a corresponding policy is formulated according to the current electricity price period to adjust the set temperature of the air conditioner. The set temperature tset is a temperature to be reached by a user for setting the air conditioner, for example, 26 ℃ set by the user through a remote controller, and the 26 ℃ is the set temperature. After the set temperature is set, the operation frequency of the compressor is adjusted in a fuzzy manner according to the indoor environment temperature and the set temperature, and the adjustment manner is well known to those skilled in the art and is not described herein. The regulation strategy of the set temperature is that if the current electricity price period is a period of low electricity price, the set temperature is regulated down as much as possible when the electricity fee is cheap, the refrigerating capacity of the air conditioner is improved, and a certain amount of cold is stored in the machine room, so that the machine room can be maintained for a period of time by virtue of the stored cold storage amount in the next period of expensive electricity fee, and the electricity fee is saved; if the current electricity price period is a high unit price period, on the premise of ensuring that equipment in a machine room can normally operate when the electricity fee is expensive, the set temperature is regulated up, so that the set temperature is regulated down again when the electricity fee is cheap in the next period, and the electricity fee is saved. In other words, when the electricity charge is inexpensive, the amount of cold is stored; and when the electricity charge is expensive, the refrigeration is delayed.

By implementing the embodiment of the application, different operation strategies are formulated according to the peak-valley electricity price, so that the comprehensive utilization rate of the electric energy of the peak-valley electricity price is improved under the condition of not increasing the cost, and the comprehensive electricity fee is reduced under the condition of not influencing the normal operation of equipment in a machine room.

In one embodiment, as shown in fig. 3, the step S120 includes the steps of: s121a-S122a.

S121a, judging whether the acquired indoor environment temperature is smaller than the preset upper limit temperature of the machine room or not if the current electricity price period is a peak period;

and S122a, if the indoor environment temperature is smaller than the preset upper limit temperature of the machine room, gradually increasing the set temperature.

In the present embodiment, if the current electricity rate period is a peak period, the peak period adjustment strategy is performed accordingly. Firstly, an indoor environment temperature Tinner ring and a preset machine room upper limit temperature Tupper limit are obtained, wherein the indoor environment temperature is the temperature of a machine room, and the preset machine room upper limit temperature refers to the upper limit of a temperature range in which machine room equipment keeps normal operation, for example, the temperature range is 10-40 ℃, and the temperature of 40 ℃ is the preset machine room upper limit temperature. And then judging whether the indoor environment temperature is lower than the preset machine room upper limit temperature, if the indoor environment temperature is lower than the preset machine room upper limit temperature, indicating that the temperature in the machine room has rising allowance, and ensuring that the machine room equipment can still work normally even if the temperature continues to rise and does not reach the preset machine room upper limit temperature, so that the set temperature can be gradually increased, and the higher the set temperature is, the lower the power consumption is, so that the electric charge can be saved.

For example, the current indoor environment temperature T is detected and the inner ring is set with the set temperature T, if T is less than or equal to T upper limit (the value of T upper limit is 30-40 ℃, preferably 35 ℃), the set temperature Ta (the value of Ta is 0-1 ℃, preferably 0.5 ℃) is increased every Ta (the value of Ta is 1-20 min, preferably 10 min) time, and Tb (the value of Tb) is 1-5 ℃, preferably 3 ℃).

In one embodiment, as shown in fig. 4, the step S120 includes the steps of: s121b-S123b.

S121b, if the current electricity price period is a valley period, acquiring the residual time of the current period;

s122b, judging whether the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room;

and S123b, if the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room, gradually reducing the set temperature.

In the present embodiment, if the current electricity rate period is the off-peak period, the off-peak period adjustment strategy is executed accordingly. First, the current period remaining time tb is obtained, and since the current electricity price period is a valley period, the valley period remaining time is obtained, and the valley period remaining time refers to the current time from the end of the valley period, for example, the current time is 3 points, the valley period end time is 8 points, and then the valley period remaining time is 5 hours. The preset time tc for cold accumulation in the machine room refers to the time required for the machine room to store the cold source in order to maintain the normal operation of the equipment, for example, 3 hours. After entering the valley period, the residual time of the valley period is smaller and smaller along with the time, and when the residual time of the valley period is smaller than or equal to the time required by cold accumulation of a preset machine room, the set temperature starts to be gradually reduced. the purpose of tb is less than or equal to tc, if cold accumulation is started before the cold accumulation required time of a preset machine room, the cold accumulation can be finished in advance, the peak time is not reached, the cold is dissipated through the forms of an enclosure structure and the like, and the cold waste is caused. The lower the set temperature is, the stronger the refrigerating capacity is, and the power consumption becomes high, but since the electricity charge is inexpensive at this time, the electricity charge can be saved by storing the cold in a period of low electricity charge.

For example, the end time tb of the current distance valley period is obtained, if tb is less than or equal to the preset cold storage time Tc (the value of Tc is 1-8 h, preferably 3 h), the set temperature Ta (the value of Ta is 0-1 ℃, preferably 0.5 ℃) is reduced by the time of every td (the value of td is 1-20 min, preferably 10 min), and the value of Tc (Tc is 1-10 ℃, preferably 5 ℃) is reduced at most.

In one embodiment, as shown in fig. 5, the step S120 includes the steps of: s121c-S123c.

S121c, if the current electricity price period is a normal period, determining a next electricity price period according to the peak-valley electricity price parameter;

s122c, if the next electricity price period is the valley period, judging whether the indoor environment temperature is smaller than the preset upper limit temperature of the machine room;

and S123c, if the indoor environment temperature is smaller than the preset machine room upper limit temperature, gradually increasing the set temperature.

In the present embodiment, if the current electricity rate period is a normal time period, the normal time period adjustment policy is executed accordingly. The regulation strategy for the normal time period needs to be determined according to the next electricity price period, and when the next electricity price period is the valley time period, the main strategy is delayed refrigeration; when the next electricity price period is a peak period, then the main strategy is to store cold. Specifically, the peak-to-valley electricity price table is read first, which period the current time is in is judged according to the peak-to-valley electricity price table, and then the next period of the period in which the current time is located is acquired as the next electricity price period. For example, the current time is 9 a.m., the 9 a.m. points in the peak-to-valley electricity price table belong to a normal time period, and the next time period of the normal time period is a peak time period, and then the peak time period is the next electricity price period. When the current electricity price period is a normal period, if the next electricity price period is a valley period, the electricity fee of the next electricity price period is cheaper, so that when the electricity fee is relatively more expensive in the normal period, the set temperature can be increased on the premise of ensuring normal operation of the equipment in the machine room, the power consumption is reduced, the refrigerating capacity is improved in the next valley period with the cheap electricity fee, and the electricity fee is saved. The specific control is similar to the above-described steps S121a-S122a. Firstly, judging whether the indoor environment temperature is lower than the preset machine room upper limit temperature, if the indoor environment temperature is lower than the preset machine room upper limit temperature, indicating that the temperature in the machine room has the rising allowance, and ensuring that the machine room equipment can still work normally even if the temperature continues to rise and does not reach the preset machine room upper limit temperature, so that the set temperature can be gradually increased, and the higher the set temperature is, the lower the power consumption is, so that the electric charge can be saved.

For example, if the next period is the valley period, if the inner loop of T is less than or equal to the upper limit of T, the set temperature Ta (Ta is 0 to 1 ℃, preferably 0.5 ℃) is increased by 1 to 30 minutes, preferably 15 minutes, per te (te is 1 to 5 ℃, preferably 2 ℃), and the Td (Td is at most increased.

In one embodiment, as shown in fig. 6, the step S120 includes the steps of: s124c-S126c.

S124c, if the next electricity price time period is the peak time period, acquiring the residual time of the current time period;

s125c, judging whether the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room;

and S126c, if the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room, gradually reducing the set temperature.

In this embodiment, the current electricity rate period is a normal period, and if the next electricity rate period is a peak period, it is indicated that the electricity fee in the next electricity rate period is more expensive, so that the set temperature can be reduced and the cold energy can be stored in the normal period when the electricity fee is relatively inexpensive, so that the temperature can be maintained by the stored cold energy in the next peak period when the electricity fee is more expensive, and the electricity fee can be saved. The specific control is similar to the above steps S121b-S123b. After entering the normal time period, the time is shifted, the residual time of the normal time period is smaller and smaller, when the residual time of the normal time period is smaller than or equal to the time required by cold accumulation of a preset machine room, cold accumulation action is started to be executed, the set temperature is gradually reduced, the lower the set temperature is, the stronger the refrigerating capacity is, and although the power consumption is higher, the electricity charge is low at the moment, and the electricity charge can be saved by cold accumulation in the low-electricity-price time period.

For example, if the next period is a peak period, the current distance normal time end time tf is obtained, and if tf is less than or equal to the preset time tg (the value of tg is 1-3 h, preferably 2 h) required for cold accumulation of the machine room, the set temperature Ta ℃ (the value of Ta is 0-1 ℃, preferably 0.5 ℃) is reduced by the time of each th (the value of th is 1-20 min, preferably 10 min), and the maximum Te ℃ (the value of Te is 1-10 ℃, preferably 2 ℃).

In an embodiment, as shown in fig. 7, the method further comprises the steps of: S130-S160.

S130, when switching from a low electricity price period to a high electricity price period, if the indoor environment temperature is less than a preset temperature, controlling the compressor to operate according to a preset frequency;

s140, acquiring the residual time and the temperature variable rate of the current period;

s150, determining the estimated temperature rise temperature of the machine room according to the residual time of the current period and the temperature change rate;

s160, adjusting the preset frequency according to the estimated temperature rise temperature and the current cold accumulation amount, wherein the current cold accumulation amount is the temperature difference between the indoor environment temperature and the set temperature.

In the present embodiment, the period of switching from the period of low electricity prices to the period of high electricity prices includes various cases, which are respectively switching from the usual period to the peak period, switching from the valley period to the peak period, and switching from the valley period to the usual period. When switching from a period of low electricity price to a period of high electricity price, due to the cold accumulation action, when the temperature drops too much, there is a situation that the T-ring is less than the T-setting, the temperature of the machine room is lower than the set temperature, at which time the compressor is controlled to maintain operation at a preset frequency F, for example 1-60Hz, preferably 20Hz, which is set according to the actual configuration and requirements of the air conditioner. Then, the remaining time tk and the temperature variable rate in the current period are obtained, and the obtaining manner of the remaining time in the current period is the same as that of the above embodiment, which is not described herein. The temperature rate refers to the rate of change of temperature per unit time in the machine room. Specifically, the temperature of the machine room is detected at a certain moment, then the temperature of the machine room is detected once again after the unit time Deltat passes, the temperature difference value detected before and after the unit time is the temperature change Deltat, and the temperature change rate is Deltat/Deltat. After the temperature variable rate is obtained, the temperature to be increased of the machine room, namely the estimated temperature rise temperature Tf, can be estimated according to the temperature variable rate and the residual time of the current period, and Tf=tk is delta T/deltat. The foregoing explains that there is a stable heat source continuously in the machine room, so that the temperature in the machine room is gradually increased under the premise that the refrigerating capacity of the air conditioner is unchanged. Therefore, the adjustment strategy adopted in the embodiment is to estimate how much the machine room will rise, that is, to determine the estimated temperature rise; then determining the current cold accumulation amount of the machine room, wherein the current cold accumulation amount in the embodiment is the difference between the set temperature and the indoor environment temperature, namely T set-T inner ring; and finally, comparing the estimated temperature rise with the current cold accumulation amount, and adjusting the preset frequency based on the comparison result.

In one embodiment, as shown in fig. 8, the step S160 further includes the steps of: S161-S162.

S161, if the difference between the estimated temperature rise temperature and the current cold accumulation amount is smaller than or equal to zero, reducing the preset frequency;

and S162, if the difference between the estimated temperature rise temperature and the current cold accumulation amount is between zero and a preset temperature rise temperature threshold, maintaining the preset frequency.

And S163, if the difference between the estimated temperature rise temperature and the current cold accumulation amount is greater than a preset temperature rise temperature threshold, the preset frequency is increased.

In this embodiment, the estimated temperature rise temperature is compared with the current cold accumulation amount, if the estimated temperature rise temperature is smaller than the current cold accumulation amount, the current cold accumulation amount is indicated to have the rest, that is, the current refrigerating capacity is indicated to have the rest, and the preset frequency can be continuously adjusted downwards, so that the electric charge is saved. The preset temperature rise threshold Tg is the temperature rise temperature acceptable by the machine room. If the estimated temperature rise is greater than the current cold accumulation amount, the temperature rise is acceptable within the range of 0-Tg, and the frequency can be maintained for energy conservation. When the temperature in the machine room continues to rise gradually and the current cold accumulation amount is consumed gradually until the estimated temperature rise temperature is larger than the current cold accumulation amount and is out of the range of 0-Tg, namely larger than Tg, the preset frequency is adjusted upwards, the refrigerating capacity is improved, and the temperature in the machine room is ensured to be in a proper range.

For example, if there may be a T-ring < T setting after switching from the usual period or the off-valley period to the peak period or from the off-valley period to the usual period, the shutdown logic is not executed first, the frequency is maintained according to F (the value of F is 1-60Hz, preferably 20 Hz), the time tk from the end of the current period is detected, the temperature change Δt (i.e., the room temperature Tt0 before the current temperature T-ring Δt time is detected every Δt time) in the Δt time (the value of Δt is 1-5 min, preferably 3 min) is detected, and the predicted temperature rise tf=tk Δt/. Δt is calculated. If Tf- (T set-T inner ring) is less than or equal to 0, maintaining the frequency F to downwards adjust 2Hz; if Tf- (T is set to-T inner ring) is more than or equal to 0 and less than or equal to Tg (the value of Tg is 1-10 ℃, preferably 4 ℃), the frequency F is maintained; if Tf- (T set-T inner ring) > Tg (Tg is 1-10deg.C, preferably 4deg.C), the frequency F is maintained at 2Hz.

In order to further describe the control method of the air conditioner in the machine room according to the embodiment of the present application, with reference to fig. 9, control logic of the control method will be briefly described below.

Firstly, the current electricity price period is read, whether the current electricity price period is a peak period or not is judged, if not, whether the current electricity price period is a valley period or not is further judged, and if not, whether the current electricity price period is a normal period or not is further judged.

When the electricity price period is a peak period, judging that the T inner ring is less than or equal to the T upper limit, and if yes, executing the increase of the set temperature Ta ℃ per Ta time.

When the electricity price period is the valley period, the current distance valley period ending time tb is firstly obtained, then tb is judged to be less than or equal to tc, and if yes, the set temperature Ta ℃ is reduced every td time.

When the electricity price period is a normal period, the next period is judged to be a valley period or a peak period, and if the next period is the valley period, the set temperature Ta ℃ is increased every te time. If the peak time is the peak time, firstly acquiring the current distance and the time tf at which the time period ends, then judging that tf is less than or equal to tg, and reducing the set temperature Ta ℃ every th time.

Fig. 10 is a schematic block diagram of a control device 200 of an air conditioner in a machine room according to an embodiment of the present application. As shown in fig. 10, the application further provides a control device of the machine room air conditioner, corresponding to the control method of the machine room air conditioner. The control device of the room air conditioner comprises a unit for executing the control method of the room air conditioner, and the device can be configured in the air conditioner. Specifically, referring to fig. 10, the control device of the machine room air conditioner includes a period acquisition unit 201 and a temperature adjustment unit 202.

Wherein, the period acquisition unit 201 is configured to acquire a peak-to-valley electricity price parameter of a current region, and determine a current electricity price period according to the peak-to-valley electricity price parameter; and a temperature adjusting unit 202 for adjusting the set temperature according to the current electricity price period.

In one embodiment, the temperature adjustment unit 202 includes: a first judging unit and a first raising unit.

The first judging unit is used for judging whether the acquired indoor environment temperature is smaller than the preset upper limit temperature of the machine room or not if the current electricity price period is a peak period; and the first increasing unit is used for increasing the set temperature step by step if the indoor environment temperature is smaller than the preset upper limit temperature of the machine room.

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

The first time acquisition unit is used for acquiring the residual time of the current period if the current electricity price period is a valley period; the second judging unit is used for judging whether the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room; and the first reduction unit is used for gradually reducing the set temperature if the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room.

In one embodiment, the temperature adjustment unit 202 includes: a second period acquisition unit, a third judgment unit and a second raising unit.

The second period acquisition unit is used for determining a next power price period according to the peak-valley power price parameter if the current power price period is a normal period; the third judging unit is used for judging whether the indoor environment temperature is smaller than the preset machine room upper limit temperature or not if the next electricity price period is the valley period; and the second increasing unit is used for increasing the set temperature step by step if the indoor environment temperature is smaller than the preset upper limit temperature of the machine room.

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

The second time obtaining unit is used for obtaining the residual time of the current time period if the next electricity price time period is the peak time period; a fourth judging unit, configured to judge whether the remaining time in the current period is less than or equal to a time required for cold accumulation in a preset machine room; and the second reducing unit is used for gradually reducing the set temperature if the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room.

In an embodiment, the control device 200 of the machine room air conditioner further includes: the device comprises a rate acquisition unit, an estimation unit and a frequency adjustment unit.

The rate acquisition unit is used for acquiring the residual time and the temperature rate of the current period; the estimating unit is used for determining the estimated temperature rise temperature of the machine room according to the residual time of the current period and the temperature change rate; and the frequency adjusting unit is used for adjusting the preset frequency according to the estimated temperature rise temperature and the current cold accumulation amount, wherein the current cold accumulation amount is the temperature difference between the indoor environment temperature and the set temperature.

In an embodiment, the control device 200 of the machine room air conditioner further includes: frequency reducing unit, frequency increasing unit and frequency maintaining unit.

The frequency reducing unit is used for reducing the preset frequency if the difference value between the estimated temperature rise temperature and the current cold accumulation amount is smaller than or equal to zero; the frequency maintaining unit is used for maintaining the preset frequency if the difference between the estimated temperature rise temperature and the current cold accumulation amount is between zero and a preset temperature rise temperature threshold; and the frequency increasing unit is used for increasing the preset frequency if the difference between the estimated temperature rise temperature and the current cold accumulation amount is larger than a preset temperature rise temperature threshold value.

It should be noted that, as a person skilled in the art can clearly understand, the specific implementation process of the control device 200 and each unit of the machine room air conditioner may refer to the corresponding description in the foregoing method embodiment, and for convenience and brevity of description, the description is omitted here.

The control device of the machine room air conditioner described above may be implemented in the form of a computer program that can be run on the air conditioner as shown in fig. 11.

Referring to fig. 11, fig. 11 is a schematic block diagram of an air conditioner according to an embodiment of the present application.

Referring to fig. 11, the air conditioner 500 includes a processor 502, a memory, and a network interface 505, which are connected through a system bus 501, wherein the memory may include a non-volatile storage medium 503 and an internal memory 504.

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 method of controlling an air conditioner of a machine room.

The processor 502 is used to provide computing and control capabilities to support the operation of the overall air conditioner 500.

The internal memory 504 provides an environment for the execution of a computer program 5032 in the non-volatile storage medium 503, which computer program 5032, when executed by the processor 502, causes the processor 502 to perform a method for controlling an air conditioner of a machine room.

The network interface 505 is used for network communication with other devices. It will be appreciated by those skilled in the art that the structure shown in fig. 11 is merely a block diagram of a portion of the structure associated with the present inventive arrangements and is not limiting of the air conditioner 500 to which the present inventive arrangements are applied, and that a particular air conditioner 500 may include more or fewer components than shown, or may combine certain components, or may have a different arrangement of components.

The processor 502 is configured to execute a computer program 5032 stored in a memory, so as to implement any embodiment of a control method of an air conditioner of a machine room as described above.

It should be appreciated that in embodiments of the present application, the processor 502 may be a central processing unit (Central Processing Unit, CPU), the processor 502 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf Programmable gate arrays (FPGAs) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. Wherein the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

Those skilled in the art will appreciate that all or part of the flow in a method embodying the above described embodiments may be accomplished by computer programs instructing the relevant hardware. The computer program comprises program instructions, and the computer program 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 flow steps of the embodiments of the method described above.

Accordingly, the present application also provides a storage medium. The storage medium may be a computer readable storage medium. The storage medium stores a computer program, wherein the computer program includes program instructions. The program instructions, when executed by the processor, cause the processor to perform any embodiment of a method of controlling a room air conditioner as described above.

The storage medium may be a U-disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk, or other various computer-readable storage media that can store program codes.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of each unit is only one logic function division, and there may be another division manner in actual implementation. For example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs. The units in the device of the embodiment of the application can be combined, divided and deleted according to actual needs. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The integrated unit may be stored in a storage medium if implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application is essentially or partly contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing an air conditioner to perform all or part of the steps of the method according to the embodiments of the present application.

In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

While the application has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims (10)

1. The control method of the air conditioner of the machine room is characterized by comprising the following steps:

acquiring peak-valley electricity price parameters of a current region, and determining a current electricity price period according to the peak-valley electricity price parameters;

and adjusting the set temperature according to the current electricity price period.

2. The method of claim 1, wherein the step of adjusting the set temperature according to the current electricity rate period comprises:

if the current electricity price period is a peak period, judging whether the acquired indoor environment temperature is less than the preset upper limit temperature of the machine room;

if the indoor environment temperature is smaller than the preset upper limit temperature of the machine room, the set temperature is gradually increased.

3. The method according to claim 2, wherein the step of adjusting the set temperature according to the current electricity rate period includes:

if the current electricity price period is a valley period, acquiring the residual time of the current period;

judging whether the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room;

and if the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room, gradually reducing the set temperature.

4. A method according to claim 3, wherein the step of adjusting the set temperature according to the current electricity rate period comprises:

if the current electricity price time period is a normal time period, determining a next electricity price time period according to the peak-valley electricity price parameter;

if the next electricity price period is the valley period, judging whether the indoor environment temperature is smaller than the preset upper limit temperature of the machine room or not;

if the indoor environment temperature is smaller than the preset upper limit temperature of the machine room, the set temperature is gradually increased.

5. The method of claim 4, further comprising, after the step of determining a next electricity rate period from the peak-to-valley electricity rate parameter:

if the next electricity price time period is the peak time period, acquiring the residual time of the current time period;

judging whether the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room;

and if the residual time in the current period is less than or equal to the time required by cold accumulation of a preset machine room, gradually reducing the set temperature.

6. The method according to any one of claims 1-5, further comprising:

when switching from the low electricity price period to the high electricity price period, if the indoor environment temperature is smaller than the preset temperature, controlling the compressor to operate according to the preset frequency;

obtaining the residual time and the temperature variable rate of the current period;

determining the estimated temperature rise temperature of the machine room according to the residual time of the current period and the temperature change rate;

and adjusting the preset frequency according to the estimated temperature rise temperature and the current cold accumulation amount, wherein the current cold accumulation amount is the temperature difference between the indoor environment temperature and the set temperature.

7. The method of claim 6, wherein the step of adjusting the preset frequency based on the estimated temperature rise and the amount of cold accumulation comprises:

if the difference between the estimated temperature rise temperature and the current cold accumulation amount is smaller than or equal to zero, the preset frequency is reduced;

if the difference between the estimated temperature rise temperature and the current cold accumulation amount is between zero and a preset temperature rise temperature threshold, maintaining the preset frequency;

and if the difference between the estimated temperature rise temperature and the current cold accumulation amount is larger than a preset temperature rise temperature threshold value, the preset frequency is increased.

8. A control device for a machine room air conditioner, characterized by comprising means for performing the method according to any one of claims 1-7.

9. An air conditioner comprising a memory and a processor, the memory having a computer program stored thereon, the processor implementing the method of any of claims 1-7 when executing the computer program.

10. A storage medium storing a computer program comprising program instructions which, when executed by a processor, implement the method of any one of claims 1-7.