Power limiting control method, power limiting control device and storage medium for home appliance

Abstract

The application discloses a power limiting control method and device of a household appliance and a computer readable storage medium, and comprises the following steps: when receiving power limiting information, determining the allowed running load of the household appliance based on the power limiting information; obtaining the current power consumption load of the household appliance; when the current power consumption load is greater than the allowed running load, adjusting the set running parameter value of the household appliance according to a period until the current power consumption load is less than or equal to the allowed running load, wherein the adjustment value of the set running parameter value of the household appliance is different in different periods, and the adjustment value of each period is inversely proportional to the length of the period. In the power limiting control process of the household appliance, the environment of the action space of the household appliance gradually changes according to the period, and the adaptation process is provided for the user, and the indoor environment comfort is maintained.

Description

Technical Field

[0001] This invention relates to the field of household appliances, and more particularly to a power limiting control method, power limiting control device, and storage medium for household appliances. Background Technology

[0002] To conserve energy, the State Grid monitors household electricity consumption and implements power rationing accordingly. When the grid needs to ration electricity, it sends a power rationing command to household appliances. Upon receiving the command, these appliances limit their power consumption to restrict their overall energy usage.

[0003] Currently, when the State Grid imposes power rationing requirements, the power limit for household electrical appliances is determined based on these requirements, and the appliances are adjusted accordingly to meet the rationing demands. However, this adjustment method results in significant fluctuations in household appliance usage, leading to excessive changes in indoor environmental conditions and consequently affecting indoor comfort.

[0004] It should be noted that the above content is only used to help understand the technical problem solved by the present invention, and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide a power limiting control method, a power limiting control device, and a storage medium for home appliances, which aims to make the adjustment of the indoor environment slow when home appliances adjust their power under power limiting requirements, so as to avoid affecting the comfort of the indoor environment.

[0006] Based on this, the present invention provides a power limiting control method for household appliances, the power limiting control method for household appliances comprising the following steps:

[0007] Upon receiving a power rationing notice, the permissible operating load of the home appliances is determined based on the power rationing notice; and the current power load of the home appliances is obtained.

[0008] When the current power load is greater than the allowable operating load, the set operating parameter values ​​of the home appliances are adjusted periodically until the current power load is less than or equal to the allowable operating load. The adjustment values ​​of the set operating parameters of the home appliances are different in different periods, and the adjustment value of each period is inversely proportional to the duration of the period.

[0009] Optionally, the step of periodically adjusting the set operating parameter values ​​of the home appliance when the current electrical load is greater than the allowable operating load, until the current electrical load is less than or equal to the allowable operating load, includes:

[0010] When the current power load is greater than the allowable operating load, a first adjustment value is obtained, and a first duration of a first cycle is obtained based on the first adjustment value;

[0011] Adjust the set operating parameter value of the home appliance according to the first adjustment value, and after controlling the home appliance to run for the first time, obtain the current power load of the home appliance;

[0012] When the current load exceeds the allowable operating load, a second adjustment value is obtained, and a second duration of the second cycle is obtained based on the second adjustment value;

[0013] Adjust the set operating parameter value according to the second adjustment value, and after controlling the home appliance to run for the second duration, continue to obtain the current power load of the home appliance until the current power load is less than or equal to the allowable operating load.

[0014] Optionally, the steps of obtaining the first adjustment value or obtaining the second adjustment value include:

[0015] Obtain the current environmental parameter values ​​of the operating space of the home appliance;

[0016] Based on the difference between the current environmental parameter value and the set environmental parameter value, an adjustment value for the set operating parameter value is determined. The adjustment value includes a first adjustment value and a second adjustment value, which are adjustment values ​​for different periods.

[0017] Optionally, the step of determining the adjustment value of the set operating parameter value based on the difference between the current environmental parameter value and the set environmental parameter value includes:

[0018] The adjustment value of the set operating parameter value is determined based on the difference between the current environmental parameter value and the set environmental parameter value, as well as the load limit ratio.

[0019] Optionally, the step of determining the adjustment value of the set operating parameter value based on the difference between the current environmental parameter value and the set environmental parameter value, and the load limit ratio, includes:

[0020] Obtain the difference between the current environmental parameter value and the set environmental parameter value, as well as the load limit ratio;

[0021] Obtain the target control speed ratio;

[0022] The adjustment value of the set operating parameter is determined based on the difference, the load limit ratio, and the target control speed ratio.

[0023] Optionally, the step of obtaining the target control speed ratio includes:

[0024] The target control speed ratio is obtained based on the difference, wherein the difference is inversely proportional to the target control speed ratio.

[0025] Optionally, the current electrical load is the total electrical load of at least two household appliances in operation, and the step of periodically adjusting the set operating parameters of the household appliances when the current electrical load is greater than the allowable operating load, until the current electrical load is less than or equal to the allowable operating load, includes:

[0026] When the current power load is greater than the allowable operating load, a first adjustment value is obtained for each of the home appliances that are in operation, and a first duration of a first cycle corresponding to each of the first adjustment values ​​is determined.

[0027] Adjust the set operating parameter values ​​of the corresponding home appliances according to each of the first adjustment values, and when the operating time of a first home appliance reaches the first duration, obtain the current power load of the home appliance.

[0028] When the current load is greater than the allowable operating load, a second adjustment value is obtained for each of the first home appliances, and a second duration of the second cycle corresponding to the first home appliance is determined based on the second adjustment value;

[0029] Control the second appliance other than the first appliance to maintain its current set operating parameter value, and adjust the set operating parameter value of the corresponding first appliance according to the second adjustment value;

[0030] When the operating time of the first home appliance reaches the second duration, or when the operating time of the second home appliance reaches the first duration, the current power load of the home appliance continues to be acquired until the current power load is less than or equal to the allowable operating load.

[0031] Optionally, the power limiting control method for the household appliances further includes:

[0032] When the current electrical load is less than or equal to the allowable operating load, the control appliance operates at the currently set operating parameter values.

[0033] To achieve the above objectives, the present invention also provides a power limiting control device, which includes a memory, a processor, and a power limiting control program stored in the memory and executable on the processor. When the power limiting control program is executed by the processor, it implements the steps of the power limiting control method for home appliances as described above.

[0034] The present invention also provides a storage medium storing a power limiting control program, which, when executed by a processor, implements the various steps of the power limiting control method for home appliances as described above.

[0035] The present invention provides a power restriction control method, power restriction control device, and storage medium for home appliances. In this embodiment, upon receiving power restriction information, it determines whether the current power load of the home appliance exceeds the allowable operating load permitted by the power restriction requirements. If so, it gradually reduces the power load of the home appliance to the allowable operating load by periodically adjusting the set operating parameter values ​​of the home appliance. In this way, the set operating parameter values ​​are gradually adjusted during the process of adjusting the power load of the home appliance, so that the environment of the space in which the home appliance operates changes slowly, providing users with an adaptation process, maintaining the comfort of the indoor environment, and improving the use effect of the home appliance under power restriction. Moreover, the adjustment value of the set operating parameter values ​​of the home appliance is set differently for different periods, and the adjustment value of the period is inversely proportional to the duration of the period. For periods with larger adjustment values, the period is shorter, which speeds up the adjustment of the home appliance. At the same time, by adjusting in multiple periods, the environmental changes are gradually transitioned, reducing the impact on comfort. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the hardware architecture of the power limiting control device according to an embodiment of the present invention;

[0037] Figure 2 This is a flowchart illustrating the first embodiment of the power limiting control method for household appliances according to the present invention.

[0038] Figure 3 This is a detailed flowchart of step S20 in the second embodiment of the power limiting control method for household appliances of the present invention;

[0039] Figure 4 This is a flowchart illustrating the third embodiment of the power limiting control method for household appliances of the present invention.

[0040] Figure 5 This is a flowchart illustrating the fourth embodiment of the power limiting control method for household appliances of the present invention;

[0041] Figure 6 This is a flowchart illustrating one implementation method of the power limiting control method for household appliances according to the present invention.

[0042] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0044] In response to the national call for energy conservation, the State Grid Corporation of China restricts household electricity consumption during peak hours or special time periods to prevent excessive waste of electricity.

[0045] Currently, when the State Grid imposes power rationing requirements, the power limit for household appliances is determined based on these requirements, and the appliances are adjusted directly to meet the rationing demands. However, this adjustment method can lead to significant fluctuations in the set temperature of household appliances, resulting in excessive indoor temperature variations and impacting indoor comfort. For example, when using an air conditioner, adjusting the set temperature too drastically to meet rationing requirements can cause a large discrepancy between the set temperature and the actual indoor temperature, especially during sudden adjustments, leading to poor indoor comfort.

[0046] Based on this, this invention provides a method for controlling power rationing of home appliances. When the State Grid issues power rationing requirements, the method gradually reduces the power load of home appliances by periodically adjusting the set operating parameters until the power load meets the power rationing requirements issued by the State Grid. In this invention, the periodic adjustment of the set operating parameters of home appliances allows the indoor environment to change gradually, providing users with an adaptation transition period, thereby avoiding problems with poor indoor comfort.

[0047] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0048] As one implementation method, the hardware environment architecture involved in the power limiting control method for the aforementioned home appliances can be as follows: Figure 1 As shown.

[0049] Optionally, the hardware architecture involved in the power limiting control method for home appliances may include a power limiting control device, such as a smart meter. Alternatively, the power limiting control device may also be a home appliance. Alternatively, in home appliance IoT applications, the power limiting control device may be a home appliance IoT platform, which controls the operating power of each home appliance in the IoT. Alternatively, in some embodiments, the power limiting control device includes a smart meter and a home appliance IoT platform, whereby the smart meter monitors the current power load of the home appliances, and the home appliance IoT platform controls the operating power of each home appliance based on the current power load.

[0050] In one implementation, the terminal includes: a processor 101, such as a CPU, a memory 102, and a communication bus 103. The communication bus 103 is used to establish communication between these components. The processor 102 is used to invoke an application program to perform control operations.

[0051] The memory 102 can be a high-speed RAM or a stable memory (non-volatile memory), such as a disk storage device.

[0052] It is understood that, in one embodiment, the power limiting control program that implements the control process of the power limiting control device is stored in the memory 102 of the power limiting control device, or stored in a computer-readable storage medium. When the processor 101 calls the power limiting control program from the memory 102, it performs the following operations:

[0053] Upon receiving a power rationing notice, the permissible operating load of the home appliances is determined based on the power rationing notice; and the current power load of the home appliances is obtained.

[0054] When the current power load is greater than the allowable operating load, the set operating parameter values ​​of the home appliances are adjusted periodically until the current power load is less than or equal to the allowable operating load. The adjustment values ​​of the set operating parameters of the home appliances are different in different periods, and the adjustment value of each period is inversely proportional to the duration of the period.

[0055] Based on the hardware architecture of the power limiting control device described above, the following embodiments of the present invention are proposed.

[0056] First Embodiment

[0057] Please refer to Figure 2 The first embodiment of the power limiting control method for home appliances proposed in this embodiment includes the following steps:

[0058] Step S10: Upon receiving power restriction information, determine the allowable operating load of the home appliances based on the power restriction information; and obtain the current power load of the home appliances.

[0059] This invention relates to a power rationing control device. The power rationing information can be sent by a smart meter or by the State Grid. For example, the power rationing control device is a home appliance or a home appliance IoT platform. The smart meter monitors the current power load of the home appliance according to the power rationing command sent by the State Grid. If the load exceeds the limit, the smart meter sends power rationing information to the power rationing control device, which then performs power rationing control based on the power rationing information. Alternatively, for example, the power rationing control device includes a home appliance IoT platform and a smart meter. When the IoT platform receives the power rationing information from the State Grid, it sends a monitoring command to the smart meter. The smart meter monitors the current power load of the home appliance. If the load exceeds the limit, the smart meter sends a power rationing request to the home appliance IoT platform, which then performs power rationing control based on the power rationing request.

[0060] The allowable operating load is the load (power) that home appliances are allowed to operate based on power rationing information. For example, if the full load of a home appliance is 1000W, and the operating load of the home appliance is 600W, then 600W is the allowable operating load of the home appliance.

[0061] The current power load of the home appliances refers to the total power load of the home appliances that are in operation. In a single home appliance scenario, the current power load is the actual power load of that appliance. In a scenario involving at least two home appliances controlled synchronously via the Internet of Things (IoT), the current power load is the actual total power load of all home appliances that are in operation. In this embodiment, the current power load of the home appliances is obtained through a smart meter.

[0062] Step S20: When the current power load is greater than the allowable operating load, the set operating parameter value of the home appliance is adjusted periodically until the current power load is less than or equal to the allowable operating load. The adjustment value of the set operating parameter value of the home appliance is different in different periods, and the adjustment value of each period is inversely proportional to the duration of the period.

[0063] After obtaining the electrical load of the home appliances and the allowable operating load required by the power grid, compare the electrical load with the allowable operating load. If the electrical load is greater than the allowable operating load, it means that the electrical load of the home appliances is exceeding the limit, and power restriction control of the home appliances is required.

[0064] In this embodiment, the electrical load of home appliances is controlled by periodically adjusting the set operating parameters of the appliances until the current electrical load is less than or equal to the allowable operating load, thereby meeting the power grid's power rationing requirements. The period is determined based on the adjustment value of each appliance; a larger adjustment value corresponds to a shorter adjustment period, and a smaller adjustment value corresponds to a longer adjustment period.

[0065] The larger the adjustment range of the set operating parameters of home appliances, the greater the power consumption that needs to be restricted, and the greater the impact on the environment of the operating space. If the set operating parameters are adjusted by a large margin and the adjustment cycle is too long, the environmental fluctuations will be greater. Therefore, this embodiment sets the adjustment value to be inversely proportional to the cycle length. When the adjustment value of the home appliance is large, the adjustment cycle is shortened to slow down the rate of environmental change. Then, by gradually decreasing the adjustment value over multiple cycles, the power load of the home appliance is brought to the level required to meet the power restriction requirements quickly, while also ensuring that the environment meets the user's comfort requirements as much as possible. When the adjustment value of the home appliance is small, the adjustment of the home appliance has little effect on power restriction. Therefore, increasing the adjustment cycle can reduce the number of adjustments to the home appliance and maintain the environment in a more comfortable state for a longer period of time.

[0066] In one possible implementation, the adjustment value of the set operating parameter is different in each cycle. In this implementation, a load limit ratio can be determined based on the allowable operating load and the current power load. Then, at least two different adjustment values ​​are determined according to the load limit ratio. The set operating parameter value of the home appliance is adjusted according to the first adjustment value, and after one cycle, the set operating parameter value of the home appliance is adjusted again according to the second adjustment value based on the first adjusted set operating parameter value. Another cycle is then run. The adjustment is carried out in sequence according to the above method. Through adjustment in at least two cycles, the power load of the home appliance is made less than or equal to the allowable operating load.

[0067] Optionally, in one implementation, a first adjustment value is pre-set for a first cycle, a second adjustment value for a second cycle, and so on, up to the Nth cycle, adjusting the Nth adjustment value. The first adjustment value, the second adjustment value, and the Nth adjustment value decrease or increase sequentially. For example, in the method of gradually decreasing the adjustment amount, based on the consideration of quickly bringing the electrical load of home appliances towards the allowable operating load, if the current electrical load of home appliances is close to the allowable operating load, the adjustment amount is reduced to mitigate changes in the indoor environment and provide users with an adaptation process. Conversely, in the method of gradually increasing the adjustment amount, based on the consideration of first slowly changing the indoor environment and then gradually increasing the rate of change, the impact on indoor comfort is minimized throughout the power restriction control process.

[0068] Alternatively, in another implementation, the adjustment value of the set operating parameter value for home appliances in each cycle can be determined based on the power consumption of the home appliances. For example, home appliances with higher power consumption will have a larger adjustment value, while home appliances with lower power consumption will have a smaller adjustment value. For instance, in a single home appliance scenario, the power consumption of the home appliance gradually decreases with each cycle, and the corresponding adjustment value becomes smaller; or in a scenario based on the Internet of Things with multiple home appliances, the adjustment values ​​for different home appliances will be different in the same cycle. This allows the power load to quickly reach the power rationing requirements without affecting the environmental regulation effect of home appliances with lower power consumption. The method for determining the adjustment value of the set operating parameter value in each cycle in this implementation can be found in the following third and fourth embodiments.

[0069] Optionally, when the current electrical load is less than the allowable operating load, the home appliances are controlled to operate at the current set operating parameter values.

[0070] Optionally, the home appliance in this embodiment can be an air processor such as an air conditioner, purifier, humidifier, etc., with the set parameter value being a set temperature value and the environmental parameter value being an ambient temperature value. Optionally, the home appliance can also be other electrical appliances, such as a television, microwave oven, induction cooker, water heater, etc., with set parameter values ​​such as the display parameters of a television, the set power of a microwave oven or induction cooker, and the set temperature or heating power of a water heater, etc.

[0071] Optionally, one possible correspondence between adjustment values ​​and period duration can be listed:

[0072] For example, when the adjustment value is within the first preset range, the period T(n) = 10 min;

[0073] When the adjustment value is within the second preset range, the period T(n) = 20 min;

[0074] When the adjustment value is within the third preset range, the period T(n) = 30 min;

[0075] When the adjustment value is within the fourth preset range, the period T(n) = 40 min.

[0076] Wherein, the first preset range is greater than the second preset range, the second preset range is greater than the third preset range, and the third preset range is greater than the fourth preset range. For example, the first preset range is X≥4, the second preset range is X≥3, the third preset range is X≥2, and the fourth preset range is X≥1, where X is the adjustment value.

[0077] In this embodiment, upon receiving power rationing information, it is determined whether the current power load of the home appliances exceeds the allowable operating load permitted by the power rationing requirements. If so, the set operating parameter values ​​of the home appliances are adjusted periodically to gradually reduce the power load to the allowable operating load. In this way, the set operating parameter values ​​are gradually adjusted during the process of adjusting the power load of the home appliances, so that the environment of the space in which the home appliances operate changes slowly, providing users with an adaptation process, maintaining the comfort of the indoor environment, and improving the use effect of home appliances under power rationing. Moreover, the adjustment value of the set operating parameter values ​​of the home appliances is set to be different for different periods, and the adjustment value of the period is inversely proportional to the duration of the period. For periods with larger adjustment values, the period is shorter, which speeds up the adjustment of the home appliances. At the same time, by adjusting the settings periodically, the environmental changes are gradually transitioned, reducing the impact on comfort.

[0078] Second Embodiment

[0079] Please refer to Figure 3 This embodiment, based on the above embodiments, proposes an optional embodiment for periodically adjusting the set parameter values ​​of home appliances under power rationing scenarios. For example, when the current power load is greater than the allowable operating load, the step of periodically adjusting the set operating parameter values ​​of the home appliances until the current power load is less than or equal to the allowable operating load includes:

[0080] Step S21: When the current power load is greater than the allowable operating load, obtain a first adjustment value, and obtain a first duration of the first cycle based on the first adjustment value;

[0081] Step S22: Adjust the set operating parameter value of the home appliance according to the first adjustment value, and after controlling the home appliance to run for the first time, obtain the current power load of the home appliance;

[0082] Step S23: When the current load is greater than the allowable operating load, obtain a second adjustment value, and obtain the second duration of the second cycle based on the second adjustment value;

[0083] Step S24: Adjust the set operating parameter value according to the second adjustment value, and after controlling the home appliance to run for the second duration, continue to obtain the current power load of the home appliance until the current power load is less than or equal to the allowable operating load.

[0084] The following explanation uses the initial adjustment after receiving power rationing information as an example. When power rationing information is received, and the allowable operating load of the home appliance determined based on the power rationing information is less than the current power load of the home appliance, that is, when the home appliance exceeds the limit. First, the first adjustment value of the first cycle is obtained, and the first duration of the first cycle (the duration of the cycle, representing the length of the cycle) is determined based on the magnitude of the first adjustment value. Then, the set operating parameter values ​​of the home appliance are adjusted. For example, if the home appliance is an air conditioner and the air conditioner is running in cooling mode, the first adjustment value is increased based on the initial set operating parameter values, so that the operating frequency of the air conditioner compressor and the speed of the air conditioner fan are reduced, thereby reducing the power load of the air conditioner; or, if the air conditioner is running in heating mode, the first adjustment value is decreased based on the initial set operating parameter values, so that the operating frequency of the air conditioner compressor and the speed of the air conditioner fan are reduced, thereby reducing the power load of the air conditioner.

[0085] Then, the home appliances are controlled to run continuously for a first duration, or one cycle, using the adjusted set operating parameter values, so that the indoor environment changes according to the first adjusted set operating parameter values. Optionally, the first adjustment value is less than the total adjustment value corresponding to the power rationing requirement (determined by the load limit ratio). Compared to directly increasing the set operating parameter value to the total adjustment value, this embodiment can make the indoor environment change more slowly.

[0086] After the home appliance has been running for the first period of time, the current power load of the home appliance is reacquired, that is, the adjusted power load. Then it is determined whether the current power load meets the power restriction requirements. For example, if the current power load is less than the allowable operating load, if not, the second adjustment value of the second cycle is obtained. Based on the size of the second adjustment value, the second duration of the second cycle is determined, and the set operating parameter value of the home appliance is adjusted for the second cycle. For example, if the home appliance is an air conditioner and the air conditioner is running in cooling mode, the second adjustment value is increased based on the set operating parameter value adjusted in the previous cycle; or, if the air conditioner is running in heating mode, the second adjustment value is decreased based on the set operating parameter value adjusted in the previous cycle.

[0087] Then, the home appliances are controlled to run continuously for a second period of time, or one cycle, using the adjusted set operating parameters. Similar to the previous cycle, the home appliances are adjusted a second time. Likewise, as the set operating parameters of the home appliances are adjusted, the indoor environment is also adjusted accordingly. The changes in the indoor environment are based on the transition between the first and second cycles, making the user's perception of environmental comfort differences weaker and having a minimal impact on user comfort.

[0088] After the home appliance has been running for the second period of time, the current power load of the home appliance, which is the adjusted power load, is repeatedly obtained. It is then determined whether the current power load meets the power rationing requirements, such as whether the current power load is less than the allowable operating load. If not, the adjustment continues for a third cycle, and this process is repeated for each cycle until the current power load is less than the allowable operating load. If so, the appliance continues to operate at the adjusted set operating parameter values ​​without further adjustment of these values.

[0089] It should be noted that the "first" in "first adjustment value" is only used to distinguish adjustment values ​​for different periods, and is not limited to the magnitude of the adjustment value, nor is it restricted to different adjustment values. In this implementation, the first adjustment value and the second adjustment value are different because the adjustment value is inversely proportional to the duration of the period. Therefore, the first duration and the second duration are also different. Consequently, the adjustment range and adjustment time for the set operating parameters of the home appliance are different for different periods. Optionally, when the first adjustment value is greater than the second adjustment value, the first duration is less than the second duration.

[0090] Optionally, in IoT-based home appliances, the home appliance IoT platform can control multiple home appliances in the IoT, and the power grid's power rationing requirements also limit the total power load. Therefore, in this embodiment, if applied to IoT-based home appliances, the current power load of the home appliance is the total power load of at least two home appliances in operation. The following is an optional embodiment of periodically adjusting the set parameter values ​​of home appliances in an IoT home appliance scenario. For example, when the current power load is greater than the allowable operating load, the step of periodically adjusting the set operating parameter values ​​of the home appliance until the current power load is less than or equal to the allowable operating load includes:

[0091] When the current power load is greater than the allowable operating load, a first adjustment value is obtained for each of the home appliances that are in operation, and a first duration of a first cycle corresponding to each of the first adjustment values ​​is determined.

[0092] Adjust the set operating parameter values ​​of the corresponding home appliances according to each of the first adjustment values, and when the operating time of a first home appliance reaches the first duration, obtain the current power load of the home appliance.

[0093] When the current load is greater than the allowable operating load, a second adjustment value is obtained for each of the first home appliances, and a second duration of the second cycle corresponding to the first home appliance is determined based on the second adjustment value;

[0094] Control the second appliance other than the first appliance to maintain its current set operating parameter value, and adjust the set operating parameter value of the corresponding first appliance according to the second adjustment value;

[0095] When the operating time of the first home appliance reaches the second duration, or when the operating time of the second home appliance reaches the first duration, the current power load of the home appliance continues to be acquired until the current power load is less than or equal to the allowable operating load.

[0096] Optionally, the IoT-based home appliances include at least two. The first adjustment value of different home appliances can be the same or different. Similarly, the second adjustment value of different home appliances can also be the same or different. That is, within the same period, all home appliances are adjusted sequentially according to a unified adjustment value. Alternatively, within the same period, each home appliance determines its adjustment value based on its specific usage, and then adjusts the set operating parameter value of the corresponding home appliance with the corresponding integer value.

[0097] In this implementation, the specific adjustment process is the same as in steps S21 to S24 described above. The difference is that this embodiment needs to determine each home appliance in the Internet of Things that is in operation, and determine the adjustment value of each home appliance, and control each home appliance to adjust its set operating parameter value. Therefore, the specific process of adjusting the set parameter value of the home appliances periodically will not be described in detail here.

[0098] Optionally, in an embodiment where all home appliances have the same adjustment value within the same cycle, the cycle duration of all home appliances is the same. Therefore, after each home appliance completes one cycle of adjustment, the second adjustment cycle is performed synchronously.

[0099] Optionally, in embodiments where different home appliances have different adjustment values ​​within the same cycle, since the cycle length is inversely proportional to the adjustment value, the cycle length of different home appliances will also differ when the adjustment values ​​are different. Therefore, after some home appliances have adjusted their set operating parameter values ​​and run for one cycle, while other home appliances have not yet completed one cycle of adjustment, in this scenario, as long as a home appliance has adjusted and completed one cycle (e.g., the first home appliance's running time reaches the first duration corresponding to that cycle after adjustment), the current power load of the home appliance is obtained, and it is determined whether the power load of some home appliances after adjusting for one cycle is less than the allowable operating load. If so, the home appliances that have completed one cycle, as well as those that have not yet completed one cycle, will maintain their current set operating parameter values. If not, the first home appliance that has completed one cycle of adjustment will enter the next cycle of adjustment, and the second home appliance other than the first home appliance will continue to complete the current cycle of adjustment. After the current cycle of adjustment is completed, the power load will be re-determined to see if it meets the power rationing requirements.

[0100] The following example illustrates the concept: A home appliance based on the Internet of Things (IoT) includes a first appliance and a second appliance. When the total power load of the first and second appliances exceeds the allowable operating load, a first adjustment value corresponding to the first cycle is obtained. The first adjustment value for the first appliance is A1, and the second adjustment value for the second appliance is A2. If A1 is greater than A2, then the first duration L1 of the first cycle for the first appliance is less than the first duration L2 of the first cycle for the second appliance. After adjusting A1, the first appliance operates for duration L1; after adjusting A2, the second appliance operates for duration L2. Since L1 is less than L2, the first appliance completes one cycle of adjustment. After the first appliance completes one cycle of adjustment, the total power load is reacquired. If the total power load is still not less than the allowable operating load, the first appliance begins a second cycle of adjustment, while the second appliance continues to complete the first cycle of adjustment. When the second appliance completes the first cycle of adjustment, or when the first appliance completes the second cycle of adjustment, the total power load is reacquired, and the total power load is compared with the allowable operating load. Adjustment continues based on the comparison result until the total power load is less than or equal to the allowable operating load, at which point the adjustment of the first and second appliances stops.

[0101] In this embodiment, after each adjustment of the set operating parameters of the home appliances, a complete cycle is run before the next adjustment is made. This allows for gradual environmental changes, avoiding excessive fluctuations that could affect comfort. Furthermore, after adjusting the set operating parameters, a cycle is used to determine whether the adjusted power load meets the power rationing requirements, preventing overly frequent adjustments. Additionally, in IoT home appliance applications, once any appliance completes an adjustment cycle, the current power load is reassessed to ensure it is less than or equal to the allowable operating load. The next adjustment cycle is then initiated based on this assessment, eliminating the need to wait for all appliances to complete a cycle. This allows for rapid and accurate adjustments, preventing the adjusted power load from deviating too much from the allowable operating load, which could negatively impact the appliance's performance.

[0102] Third Embodiment

[0103] Please refer to Figure 4 This embodiment, based on the second embodiment described above, proposes an optional method for determining the adjustment value of the set operating parameter value. In this embodiment, the adjustment value is determined according to the power consumption requirements of the home appliance. Optionally, the step of obtaining the first adjustment value or obtaining the second adjustment value includes:

[0104] Step S41: Obtain the current environmental parameter values ​​of the operating space of the home appliance;

[0105] Step S42: Based on the difference between the current environmental parameter value and the set operating parameter value, determine the adjustment value of the set operating parameter value. The adjustment value includes the first adjustment value and the second adjustment value, which are adjustment values ​​for different periods.

[0106] Taking air conditioners as an example, air conditioners require the most electricity during the rapid cooling phase. When the indoor temperature approaches or reaches the set temperature, the cooling demand decreases. For inverter air conditioners, the compressor stops running at this time. Therefore, when the indoor temperature approaches or reaches the set temperature, the electricity demand is relatively low. For home appliances operating under conditions where environmental parameters are close to or reach the set operating parameters, the electricity demand is low, so the adjustable range is small, resulting in a smaller effect on power rationing. For home appliances with high electricity demand, the adjustment range is large, resulting in a greater effect on power rationing.

[0107] Based on this, this embodiment determines the adjustment value of the set operating parameter value by the difference between the current environmental parameter value and the set operating parameter value of the space in which the home appliance operates. It can be understood that the set operating parameter value refers to the target parameter value that the environmental parameter value is achieved through the home appliance. For example, the set operating parameter value of an air conditioner is the set temperature, which is the target temperature that the ambient temperature is achieved through the air conditioner. The difference between the current environmental parameter value and the set operating parameter value represents the difference between the current environmental parameter value and the target parameter value when the home appliance operates the air conditioner. If the difference between the current environmental parameter value and the target parameter value is large, it indicates that the home appliance is currently in the stage of adjusting the environment, and the power demand is large, meaning the home appliance consumes a lot of power under this condition. If the difference between the current environmental parameter value and the target parameter value is small, it indicates that the home appliance is currently in a stable state, and the power demand is small, meaning the home appliance consumes little power under this condition.

[0108] Optionally, in this embodiment, the difference is proportional to the adjustment value. For example, a larger difference indicates that the power consumption of the appliance is greater, and the adjustment value of the appliance is larger, so that the appliance can quickly meet the power restriction requirements. A smaller difference indicates that the power consumption of the appliance is smaller, and the adjustment value of the appliance is smaller, so that the environmental changes in the space in which the appliance operates are smaller, maintaining environmental comfort.

[0109] Optionally, in this embodiment, the adjustment value for each cycle is determined by the difference between the current environmental parameter value and the set operating parameter value. Since the environmental parameter value changes after the set operating parameter value is adjusted, the adjustment value for each cycle is different. By determining the adjustment value for each cycle using the method described in this embodiment, the adjustment of the set operating parameter values ​​of home appliances can be more precise. This allows for faster fulfillment of power rationing requirements while avoiding excessive environmental fluctuations. Especially in IoT-based home appliance applications, it avoids situations where uniform adjustments to all home appliances significantly impact indoor environmental comfort.

[0110] In one possible implementation, the difference and the adjustment value can be a preset one-to-one correspondence. For example, when the difference is within a first preset range, the adjustment value is N1; when the difference is within a second preset range, the adjustment value is N2; and when the difference is within a Nth preset range, the adjustment value is Nn.

[0111] In another possible implementation, the difference and the adjustment value are determined based on a load limit ratio. The step of determining the adjustment value of the set operating parameter value based on the difference between the current environmental parameter value and the set operating parameter value includes:

[0112] The adjustment value of the set operating parameter value is determined based on the difference between the current environmental parameter value and the set operating parameter value, as well as the load limit ratio.

[0113] The load limit ratio is the load ratio that needs to be restricted in the power grid curtailment requirements. For example, if the power grid requires household appliances to operate at a load of Pr, that is, Pr is the allowable operating load, and the full load (rated load) of the household appliances is Pf, then the load limit ratio i = 1 - Pr / Pf.

[0114] In this embodiment, the adjustment value is obtained by multiplying the difference between the current environmental parameter value and the set operating parameter value by the load limitation ratio. The adjustment value of the set operating parameter value is obtained by combining the load limitation ratio and the difference between the current environmental parameter value and the set operating parameter value. The adjustment value of the home appliances is calculated based on the power rationing requirements and power consumption. This ensures that the adjustment of the home appliances can quickly meet the power rationing requirements while minimizing environmental changes in the space where the home appliances operate, maintaining indoor comfort, and thus improving the effectiveness of the power rationing adjustment of the home appliances.

[0115] Fourth embodiment

[0116] Please refer to Figure 5This embodiment, based on the second embodiment described above, proposes another optional method for determining the adjustment value of the set operating parameter. In this embodiment, the adjustment value is determined based on the power consumption requirement of the home appliance and the preset control speed. Optionally, the step of obtaining the first adjustment value or obtaining the second adjustment value includes:

[0117] Step S51: Obtain the current environmental parameter values ​​of the operating space of the home appliance;

[0118] Step S52: Obtain the difference between the current environmental parameter value and the set operating parameter value, as well as the load limit ratio;

[0119] Step S53: Obtain the target control speed ratio;

[0120] Step S54: Determine the adjustment value of the set operating parameter value based on the difference, the load limit ratio, and the target control speed ratio.

[0121] In this embodiment, the method for determining the adjustment value of the set operating parameter of the home appliance, compared to the third embodiment described above, adds control over the adjustment speed. Since this embodiment of the invention uses a periodic, gradual adjustment method to adjust the set operating parameter value of the home appliance, the adjustment speed for each cycle is determined by increasing the adjustment speed. Optionally, the adjustment speed is determined by the target control speed ratio.

[0122] It should be noted that in this embodiment, the method, principle, and effect of determining the difference between the current environmental parameter value and the set operating parameter value, as well as the load limit ratio, are the same as in the third embodiment described above, and therefore will not be described again here.

[0123] In this embodiment, an initial adjustment value can be determined first by the difference and the load limit ratio (the determination method is described in the third embodiment above). Then, the initial adjustment value is corrected by combining it with the target control speed to obtain the adjustment value for the home appliance. In an optional embodiment, the relationship between the difference, the load limit ratio, the target control speed ratio, and the adjustment value is as follows:

[0124] X = (Ti(n) - Tset(n)) * i * m.

[0125] Where X is the adjustment value of the set operating parameter of the home appliance; m is the target control speed ratio; Tset(n) is the set operating parameter value, and Ti(n) is the current environmental parameter value. In an optional embodiment, X is an integer.

[0126] The target control speed ratio can vary depending on the type of home appliance or the cycle, for example, it can be set to 30%, 40%, and 50%.

[0127] After determining the initial adjustment value based on the difference and load limit ratio, the adjustment speed for each cycle is determined by the target control speed ratio. This achieves the goal of adjusting the electrical load of home appliances in multiple cycles, minimizing the user's perception of environmental changes and maintaining environmental comfort.

[0128] In one possible implementation, the step of obtaining the target control speed ratio includes:

[0129] The target control speed ratio is obtained based on the difference, wherein the difference is inversely proportional to the target control speed ratio.

[0130] In other words, the larger the difference between the current environmental parameter value and the set operating parameter value, the larger the initial adjustment value determined based on the difference between the current environmental parameter value and the set operating parameter value, as well as the load limit ratio. If the home appliance is adjusted according to this initial adjustment value, the environmental change range of the appliance's operating space will be larger. To slow down this environmental change, the adjustment value within this cycle is reduced by the target control speed ratio, so that the environmental change range of the appliance's operating space is relatively reduced within this cycle, ensuring environmental comfort. If the initial adjustment value is small, there is no need to reduce the adjustment value, and no need to reduce the control speed. Therefore, the larger the difference, the smaller the target control speed ratio, and the slower the adjustment speed of the home appliance's set operating parameter value; the smaller the difference, the larger the target control speed ratio, and the faster the adjustment speed of the home appliance's set operating parameter value.

[0131] In this embodiment, the difference and the target control speed ratio are in one-to-one correspondence. After determining the difference, the corresponding target control speed ratio can be obtained based on the mapping relationship.

[0132] In another possible implementation, the step of obtaining the target control speed ratio includes:

[0133] The rate of change of environmental parameter values ​​in the operating space of the home appliance is obtained;

[0134] The target control speed ratio is determined based on the rate of change.

[0135] Optionally, the rate of change is inversely proportional to the target control speed. That is, during the adjustment of the set operating parameters of the home appliance, if the environmental parameter values ​​of the appliance's operating space change too rapidly, the target control speed ratio is reduced accordingly, thus decreasing the control speed of the appliance. Conversely, if the environmental parameter values ​​change only slightly, there is no need to reduce the target control speed ratio, and the normal control speed is maintained.

[0136] In this embodiment, based on actual needs, the adjustment value of the set operating parameter value of the home appliances is determined by the control speed ratio, which further reduces the change range of the environment during the power restriction control process of the home appliances. Furthermore, the adjustment is made in combination with the specific environmental requirements of each home appliance, so as to ensure the power restriction requirements while reasonably adjusting each home appliance to maximize the environmental comfort.

[0137] Optionally, in some embodiments, the adjustment value can also be determined in conjunction with user information within the operating space of the home appliance. For example, the adjustment value of the home appliance is smaller when a user is present in the operating space, thus reducing environmental fluctuations. Optionally, the adjustment value can be modified by a target control speed ratio; when user information is present, the target control speed ratio of the home appliance is smaller than when no user information is present.

[0138] Please refer to Figure 6 Based on the technical solutions of the above embodiments, the following is a specific implementation process for ease of understanding.

[0139] This embodiment is used for power limiting control of IoT-based home appliances. The IoT home appliances communicate through an IoT platform, which in turn communicates with the power grid platform. The home appliance in this embodiment is an air conditioner.

[0140] When the IoT platform receives a power rationing request from the power grid platform, it requests smart meters to monitor the power consumption of air conditioners. If the power consumption exceeds the limit, the smart meter sends a power rationing request to the home IoT platform, which includes power rationing information such as permitted operating load or over-limit load. After receiving the power rationing information, the energy control service module of the IoT platform analyzes and calculates the data. Based on the analysis and calculation results, the IoT platform sends power rationing operation commands to the home appliances in the network. After receiving the commands, the home appliances operate according to the limited load.

[0141] The power-limiting operation command includes the duration of each cycle, such as the first duration, and the adjustment value corresponding to each cycle, such as the first adjustment value and the second adjustment value. Alternatively, the power-limiting operation is named the final adjusted set operating parameter value, and the air conditioner operates directly based on the adjusted set operating parameter value to achieve the purpose of adjusting the air conditioner.

[0142] The adjustment value is calculated in the following manner.

[0143] If the power grid platform and the Internet of Things platform request all home appliances to operate at load Pr (full load is Pf), the energy control service module performs the following control calculations based on the environmental parameter values ​​of the air conditioners in operation and the set operating parameter values ​​to obtain the adjustment value:

[0144] The first step is to calculate the load limitation ratio i = 1 - Pr / Pf based on the power rationing information.

[0145] The second step is to determine whether the difference between the current electrical load Pt(n) and the allowable operating load Pr of the air conditioner is greater than 0. If Pt(n) - Pr > 0, and the control time period T(n) is in minutes, then the adjustment value X of the set temperature value is calculated based on the difference between the ambient temperature value Ti(n) and the set temperature value Tset(n) of the space where the air conditioner operates, the load limitation ratio i, and the target control speed ratio m. The specific formula is as follows:

[0146] X = (Ti(n) - Tset(n)) * i * m; optionally, the value of X is an integer.

[0147] The third step is to determine the adjustment value X of the set temperature value, calculate the duration of the current cycle T(n) based on the adjustment value X, and obtain the adjusted set temperature value based on the initial set temperature value and the adjustment value, such as the sum of the initial set temperature value and the adjustment value.

[0148] The fourth step is to send the adjusted set temperature value to the air conditioner so that the air conditioner can operate according to the adjusted set temperature value.

[0149] Fifth step: After the air conditioner runs for one cycle T(n), return to step two and check if Pt(n) - Pr > 0. If not, that is, if Pt(n) - Pr ≤ 0, then maintain the current set temperature value and stop power limiting control. Note that different adjustment values ​​correspond to different cycle lengths; the larger the adjustment value, the shorter the cycle, and the smaller the adjustment value, the longer the cycle.

[0150] One possible correspondence between the adjustment value and the duration of the period is as follows:

[0151] When the adjustment value is within the first preset range, the period T(n) = 10 min;

[0152] When the adjustment value is within the second preset range, the period T(n) = 20 min;

[0153] When the adjustment value is within the third preset range, the period T(n) = 30 min;

[0154] When the adjustment value is within the fourth preset range, the period T(n) = 40 min.

[0155] Wherein, the first preset range is greater than the second preset range, the second preset range is greater than the third preset range, and the third preset range is greater than the fourth preset range. For example, the first preset range is X≥4, the second preset range is X≥3, the third preset range is X≥2, and the fourth preset range is X≥1, where X is the adjustment value.

[0156] In this embodiment, the above control process not only enables power limiting control of home appliances but also adapts to the environmental adjustment needs of each appliance, allowing for gradual changes in ambient temperature. Furthermore, if the load exceeds the set value during the control process, the appliance will autonomously adjust itself based on its built-in adaptive control algorithm, improving the user experience while still achieving the desired control effect.

[0157] Optionally, this application embodiment also provides a computer program product, the computer program product including power limiting control program code, which, when executed by a processor of a computer or other device, implements the above embodiments.

[0158] It should be noted that the above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for limiting power consumption in household appliances, characterized in that, The power limiting control method for the aforementioned household appliances includes the following steps: Upon receiving a power rationing notice, the permissible operating load of the home appliances is determined based on the power rationing notice; and the current power load of the home appliances is obtained. When the current power load is greater than the allowable operating load, the set operating parameter values ​​of the home appliances are adjusted periodically until the current power load is less than or equal to the allowable operating load. The adjustment values ​​of the set operating parameters of the home appliances are different in different periods, and the adjustment value of each period is inversely proportional to the duration of the period. The step of periodically adjusting the set operating parameters of the home appliances when the current electrical load is greater than the allowable operating load, until the current electrical load is less than or equal to the allowable operating load, includes: When the current power load is greater than the allowable operating load, a first adjustment value is obtained, and a first duration of a first cycle is obtained based on the first adjustment value; Adjust the set operating parameter value of the home appliance according to the first adjustment value, and after controlling the home appliance to run for the first time, obtain the current power load of the home appliance; When the current power load is greater than the allowable operating load, a second adjustment value is obtained, and a second duration of the second cycle is obtained based on the second adjustment value; Adjust the set operating parameter value according to the second adjustment value, and after controlling the home appliance to run for the second duration, continue to obtain the current power load of the home appliance until the current power load is less than or equal to the allowable operating load.

2. The power limiting control method for household appliances as described in claim 1, characterized in that, The steps to obtain the first adjustment value, or the second adjustment value, include: Obtain the current environmental parameter values ​​of the operating space of the home appliance; Based on the difference between the current environmental parameter value and the set environmental parameter value, an adjustment value for the set operating parameter value is determined. The adjustment value includes a first adjustment value and a second adjustment value, which are adjustment values ​​for different periods.

3. The power limiting control method for household appliances as described in claim 2, characterized in that, The step of determining the adjustment value of the set operating parameter value based on the difference between the current environmental parameter value and the set environmental parameter value includes: Based on the difference between the current environmental parameter value and the set environmental parameter value, and the load limit ratio, the adjustment value of the set operating parameter value is determined.

4. The power limiting control method for household appliances as described in claim 3, characterized in that, The step of determining the adjustment value of the set operating parameter value based on the difference between the current environmental parameter value and the set environmental parameter value, and the load limit ratio, includes: Obtain the difference between the current environmental parameter value and the set environmental parameter value, as well as the load limit ratio; Obtain the target control speed ratio; The adjustment value of the set operating parameter is determined based on the difference, the load limit ratio, and the target control speed ratio.

5. The power limiting control method for household appliances as described in claim 4, characterized in that, The step of obtaining the target control speed ratio includes: The target control speed ratio is obtained based on the difference, wherein the difference is inversely proportional to the target control speed ratio.

6. The power limiting control method for household appliances as described in claim 1, characterized in that, The current electrical load is the total electrical load of at least two household appliances that are in operation. The step of periodically adjusting the set operating parameters of the household appliances when the current electrical load is greater than the allowable operating load, until the current electrical load is less than or equal to the allowable operating load, includes: When the current power load is greater than the allowable operating load, a first adjustment value is obtained for each of the home appliances that are in operation, and a first duration of a first cycle corresponding to each of the first adjustment values ​​is determined. Adjust the set operating parameter values ​​of the corresponding home appliances according to each of the first adjustment values, and when the operating time of a first home appliance reaches the first duration, obtain the current power load of the home appliance. When the current power load is greater than the allowable operating load, a second adjustment value is obtained for each of the first home appliances, and a second duration of the second cycle corresponding to the first home appliance is determined based on the second adjustment value; Control the second appliance other than the first appliance to maintain its current set operating parameter value, and adjust the set operating parameter value of the corresponding first appliance according to the second adjustment value; When the operating time of the first home appliance reaches the second duration, or when the operating time of the second home appliance reaches the first duration, the current power load of the home appliance continues to be acquired until the current power load is less than or equal to the allowable operating load.

7. The power limiting control method for household appliances as described in claim 1, characterized in that, The power limiting control method for the aforementioned household appliances also includes: When the current electrical load is less than or equal to the allowable operating load, the control appliance operates at the currently set operating parameter values.

8. A power limiting control device, characterized in that, The power limiting control device includes a memory, a processor, and a power limiting control program stored in the memory and executable on the processor. When the power limiting control program is executed by the processor, it implements the steps of the power limiting control method for home appliances as described in any one of claims 1 to 7.

9. A storage medium, characterized in that, The storage medium stores a power limiting control program, which, when executed by a processor, implements the various steps of the power limiting control method for home appliances as described in any one of claims 1 to 7.

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