Household electricity usage management method, system, device and storage medium

Abstract

The present application relates to a household electricity usage management method, system, device and storage medium, which belongs to the field of household electricity management technology, wherein the method includes: regularly updating and determining the low-consumption period and the peak-consumption period; when the current moment is in any low-consumption period, using the mains electricity to charge the preset energy storage device; wherein the energy storage device is used to store electric energy, and the energy storage device is one of the household electricity supply sources, for supplying power to household appliances; when the current moment is in any peak-consumption period, the household electricity supply source is switched to the energy storage device to supply power through the energy storage device, until the remaining electric energy of the energy storage device reaches the electric energy threshold, the household electricity supply source is switched to the mains electricity to supply power through the mains electricity. The present application has the effect of helping residents reduce electricity costs, while reducing the electricity pressure and load of the mains power grid during peak electricity consumption periods, and improving the stability and reliability of the mains power grid.

Description

Technical Field

[0001] The present application relates to the field of household power management technology, and in particular to household power usage management methods, systems, devices and storage media. Background Art

[0002] With the development of the times and the improvement of people's living standards in my country, household appliances are becoming more and more popular in people's lives, and the use of high-power household appliances has also brought about a surge in household electricity consumption, which makes it easy for a large number of residents in residential areas to use high-power household appliances in the same period of time. This phenomenon will not only increase the pressure on the power grid and cause management burdens on the electricity management department, but also due to the implementation of the time-of-use electricity price policy, this phenomenon will also invisibly increase the electricity costs of residents. Therefore, there is an urgent need for a household electricity use management solution that can improve the above-mentioned problems. Summary of the invention

[0003] In order to improve the technical problem of increasing household electricity costs due to a surge in electricity consumption, the present application provides a household electricity usage management method, system, device and storage medium.

[0004] In a first aspect, the present application provides a household electric energy usage management method, comprising:

[0005] Regularly update and determine the low and peak electricity consumption periods;

[0006] When the current moment is in any low electricity consumption period, the preset energy storage device is charged by using the mains electricity; wherein the energy storage device is used to store electric energy, and the energy storage device is one of the household electric energy supply sources, so as to supply power to household appliances;

[0007] When the current moment is in any peak electricity consumption period, the household electricity supply source is switched to the energy storage device to supply power through the energy storage device until the remaining power of the energy storage device reaches the power threshold, and then the household electricity supply source is switched to the mains to supply power through the mains.

[0008] By adopting the above technical solution, the off-peak period refers to the period during which the residents' electricity demand is low within a specified period (such as within 24 hours), and the corresponding peak period refers to the period during which the residents' electricity demand is low within the specified period. Combined with the time-of-use electricity price policy, the electricity charges during the off-peak period are generally lower than the electricity charges during the peak period. The application further proposes to charge the energy storage device during the off-peak period, and to give priority to using the electricity of the energy storage device as household electricity to supply power during the peak period. In this way, the time for residents to directly use the mains electricity for power supply during the peak period is shortened, thereby helping residents reduce electricity costs, while also reducing the electricity pressure and load of the mains power grid during the peak period, and improving the stability and reliability of the mains power grid.

[0009] Optionally, the periodic updating and determining of the low-consumption period and the peak-consumption period includes:

[0010] Regularly determine how electricity prices change over time within a specified period, identify periods of low electricity prices and periods of peak electricity prices, and use periods of low electricity prices as periods of low electricity consumption, and periods of peak electricity prices as periods of peak electricity consumption.

[0011] By adopting the above technical solution, the determination of the off-peak and peak periods in this application is generally based on the overall electricity consumption of all households in a specified period. The periods of low and high electricity demand are summarized based on the changes in time, which are the periods determined under normal circumstances. For example, 17:00-24:00 is the peak period of electricity consumption and the peak period of electricity prices. However, it is not ruled out that the special living habits of some residents may cause their peak periods of electricity consumption and off-peak periods to be different from or even opposite to the periods determined under the above normal circumstances, that is, the electricity prices determined under normal circumstances. The off-peak period may be the peak period of electricity consumption for the aforementioned special households, and the peak period of electricity prices determined under normal circumstances may be the off-peak period of electricity consumption for the aforementioned special households. At this time, if the aforementioned energy storage method is used: the energy storage device is charged during the off-peak period, and the off-peak period of electricity consumption for the special households is the peak period of electricity prices, then the aforementioned energy storage method will undoubtedly increase the electricity cost of the special residents. For this reason, this plan specifically defines the off-peak period as the off-peak period of electricity prices, and the peak period as the peak period of electricity prices, so as to uniformly limit the charging period of the energy storage device to the off-peak period of electricity prices.

[0012] Optionally, the method further includes:

[0013] Record and store the electricity required by the residents during each peak electricity consumption period in the historical period a;

[0014] When the current moment is in any low electricity consumption period, the preset energy storage device is charged with city electricity, including:

[0015] When the current moment is in any low-power consumption period, determine the remaining power c of the energy storage device at the current moment, and the required power a' of the peak power consumption period after the current low-power consumption period and adjacent to the current low-power consumption period, and calculate the minimum charging power e of the energy storage device based on the required power a' and the current remaining power c = a'-c-power threshold;

[0016] If the charging cost of the charging electricity during the off-peak period is not higher than the electricity cost Y during the peak period adjacent to the current time, where Y = a'* the electricity price during the peak period, the preset energy storage device is charged using the mains electricity.

[0017] By adopting the above technical solution, the purpose of charging the energy storage device during the off-peak period of electricity consumption in this application is to use the energy storage device to supply power during the peak period of electricity consumption, thereby reducing the electricity cost consumed by directly using the mains power for charging during the peak period of electricity consumption. Therefore, if the electricity consumption during the peak period of electricity consumption and its corresponding electricity cost are not higher than the cost consumed for charging the energy storage device during the off-peak period of electricity consumption, then the energy storage device will not be charged to reduce unnecessary energy storage costs.

[0018] Optionally, charging a preset energy storage device with mains electricity includes:

[0019] Determine the energy storage time t required for the minimum charging energy e according to the pre-stored corresponding relationship between the charging energy and the charging time;

[0020] According to the duration T of the current low electricity consumption period and the determined energy storage duration t, the intermittent charging period t' is determined, and according to the intermittent charging period t', the preset energy storage device is intermittently charged using the mains until the energy stored in the energy storage device is not less than the minimum energy b.

[0021] By adopting the above technical solution, when the energy storage device is charged by the mains, the present application limits the charging mode to intermittent charging, that is, after the charging time reaches a specified time, the charging operation is performed again after a pause for an interval time. For users who use batteries as energy storage devices, the intermittent charging mode can reduce the thermal stress of the battery, thereby extending the service life of the energy storage device; and the present application specifically determines the intermittent charging period t' based on the electricity consumption of the residents during the peak electricity consumption period, so as to reduce the electric energy obtained from the mains power grid on the basis of using the energy storage device to supply the electricity consumption during the peak electricity consumption period, thereby further achieving the effect of saving electricity costs.

[0022] Optionally, the method further includes:

[0023] At every designated period, a power curve chart showing the change of power consumption over time is sent to the resident, so that the resident can learn about the power consumption in the designated period; wherein the power curve chart also includes the power price, each peak power consumption period, and the energy storage power supply period during each peak power consumption period that can be supplied by the energy storage device;

[0024] Receive a selection instruction issued by the resident, update the corresponding energy storage power supply period in the power curve diagram using the custom period in the selection instruction, and determine and update the required electric energy a for the peak power application period according to the updated energy storage power supply period;

[0025] When the current moment is in any peak period of electricity consumption, switching the household electricity supply source to the energy storage device includes:

[0026] When the current moment is in any energy storage power supply period, the household electricity supply source is switched to the energy storage device.

[0027] By adopting the above technical solution, residents can define the time period for using the energy storage device for power supply (i.e., the energy storage power supply period) by triggering the selection instruction. Accordingly, when in any energy storage power supply period, the present application will use the energy storage device to realize power supply. Based on this method, human intervention and residents' autonomous power consumption decision-making are increased, so that residents can autonomously restrain their own power consumption behavior according to the changes in power consumption on a regular basis, thereby achieving the effect of saving electricity costs.

[0028] Optionally, the method further includes:

[0029] During the peak power consumption period, the energy storage supply cut-off time is regularly predicted according to the change of the remaining power of the energy storage device, and the energy storage supply cut-off time predicted each time is compared with the end time of the peak power consumption period; wherein the energy storage supply cut-off time refers to the time when the remaining power of the energy storage device reaches the power threshold;

[0030] Whenever the predicted energy storage disconnection time is not earlier than the end time of the peak power consumption period, the household power supply source is switched to the energy storage device to supply power through the energy storage device;

[0031] Whenever the predicted energy storage supply cut-off time appears to be earlier than the end time of the peak electricity consumption period, a power supply switching plan is determined and executed to switch the household electricity supply source to the mains or the energy storage device until the predicted energy storage supply cut-off time is no earlier than the end time of the peak electricity consumption period; and it is ensured that at any time during the peak electricity consumption period, the density of residents who switch the household electricity supply source to the mains is within a preset range.

[0032] By adopting the above technical solution, during the peak power consumption period, according to the real-time change of the remaining electric energy of the energy storage device, the time when the energy storage device stops supplying power (i.e., the energy storage supply interruption time) is regularly predicted, and the time is compared with the end time of the peak power consumption period. If the energy storage supply interruption time is not earlier than the end time of the peak power consumption period, it means that the energy storage device can meet the power supply demand during the peak power consumption period. If the energy storage supply interruption time is earlier than the end time of the peak power consumption period, it means that it is necessary to switch to the mains power supply before the end of the peak power consumption period. In view of this situation, the present application has specially formulated a switching power supply scheme, and the switching power supply scheme can ensure that at any time during the peak power consumption period, the density of residents using the mains power as the source of household electricity supply is within a preset range. In other words, the present application uses the switching power supply scheme to effectively avoid the problem of a sharp increase in the load of the mains power grid due to the need for a large number of residents to switch to the mains power supply while ensuring uninterrupted power supply.

[0033] Optionally, the method further includes:

[0034] Adding household information of households whose household power supply source is switched to mains power due to the execution of the power supply switching plan to a preset queue;

[0035] The determining and executing of the power supply switching scheme to switch the household power supply source to the mains or the energy storage device until the energy storage supply cut-off time is predicted to be no earlier than the end time of the peak power consumption period; and ensuring that the density of households switching the household power supply source to the mains at any time during the peak power consumption period is within a preset range, includes:

[0036] Residents whose predicted energy storage outage time is earlier than the end of the peak electricity consumption period are regarded as residents to be managed;

[0037] Determine the total power consumption of all residents in the preset queue at the current moment, and if the total power consumption meets the preset switching condition, generate and execute a switching power supply plan so that the household power supply source of the to-be-managed resident is switched to the mains; wherein the preset switching condition refers to: the total power consumption is lower than the preset power upper limit value, and the power difference with the preset power upper limit value is not less than the power consumption of the to-be-managed resident at the current moment;

[0038] If the preset switching conditions are not met, residents whose remaining power except the energy storage device reaches the power threshold are screened out from the preset queue; for the screened out residents, the household power supply sources of the corresponding residents are switched to the energy storage device one by one in the order of the time they were added to the preset queue until the preset switching conditions are met.

[0039] By adopting the above technical solution, the solution specifically discloses the details of the switching power supply plan, that is, to ensure that the total power consumption of residents using municipal power supply at any time does not exceed the preset upper limit of power consumption, so as to maintain the balance and stability of the power grid.

[0040] In a second aspect, the present application provides a household power usage management system, comprising:

[0041] A peak-valley period determination module is used to regularly update and determine the low-consumption period and the peak-consumption period;

[0042] An energy storage device charging module is used to charge a preset energy storage device using the mains electricity when the current moment is in any low-power consumption period; wherein the energy storage device is used to store electric energy, and the energy storage device is one of the household electric energy supply sources, so as to supply power to household appliances;

[0043] The power supply source switching module is used to switch the household power supply source to an energy storage device when the current moment is in any peak power consumption period, so as to supply power through the energy storage device, until the remaining power of the energy storage device reaches the power threshold, and then switch the household power supply source to the mains power to supply power through the mains power.

[0044] In a third aspect, the present application provides a household power usage management device, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and execute any one of the methods described in the first aspect.

[0045] In a fourth aspect, the present application provides a computer-readable storage medium storing a computer program that can be loaded by a processor and execute any one of the methods described in the first aspect.

[0046] In summary, this application includes the following beneficial technical effects:

[0047] The present application proposes to charge the energy storage device during the off-peak period of electricity consumption, and give priority to using the energy of the energy storage device as household electricity to supply power during the peak period of electricity consumption. In this way, the time for residents to directly use the mains electricity for power supply during the peak period of electricity consumption is shortened, thereby helping residents to reduce electricity costs. At the same time, it also reduces the electricity pressure and load of the mains power grid during the peak period of electricity consumption, and improves the stability and reliability of the mains power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 It is a flowchart of the household electricity usage management method disclosed in the embodiment of the present application.

[0050] Figure 2 It is a structural block diagram of the household power usage management system disclosed in the embodiment of the present application.

[0051] Explanation of the reference numerals: 1. Peak and valley period determination module; 2. Energy storage device charging module; 3. Power supply source switching module. DETAILED DESCRIPTION

[0052] The following is combined with Figure 1-2 This application is described in further detail.

[0053] The embodiment of the present application discloses a method for managing the use of household electricity. The method for managing the use of household electricity is used to determine and adjust the supply source of household electricity in real time based on the fluctuation of electricity consumption and electricity prices over time. Specifically, the present application proposes charging and storing energy in household energy storage devices during low electricity consumption periods, and giving priority to using the stored energy in household energy storage devices to supply electricity during peak electricity consumption periods, thereby reducing the amount of city electricity supply during peak electricity price periods, thereby helping residents reduce electricity costs, and at the same time alleviating the pressure on the city power grid during peak electricity consumption periods, thereby improving the stability and reliability of the city power grid.

[0054] The execution subject of the household power usage management method of the present application is the household power usage management system (hereinafter referred to as the management system). Figure 1 The specific process steps of the household electricity usage management method are explained in detail.

[0055] S101, regularly update and determine the low power consumption period and the peak power consumption period.

[0056] Specifically, S101 includes the following sub-steps:

[0057] Regularly determine how electricity prices change over time within a specified period, identify periods of low electricity prices and periods of peak electricity prices, and use periods of low electricity prices as periods of low electricity consumption, and periods of peak electricity prices as periods of peak electricity consumption.

[0058] In implementation, each household is equipped with a corresponding power monitoring device, which is used to monitor the real-time power consumption of the corresponding household. The management system of this application is connected to the power monitoring devices of all households in order to obtain the real-time power consumption of all households, so as to obtain the change of the power consumption of the household over time in the specified period (such as 24 hours), which can be represented by the power consumption change curve over time. The power consumption valley period and power consumption peak period described in this application are obtained from the total power consumption curve of the total power consumption change over time obtained by comprehensively obtaining the power consumption of all households in the specified period.

[0059] Therefore, the management system will update the electricity consumption over time curve based on the electricity consumption changes over time of all households in the specified period, and draw the electricity price change curve based on the electricity consumption change curve. The change of electricity price over time in this application is directly proportional to the change of electricity consumption over time. Therefore, the low electricity consumption period of this application is the low electricity price period, and the peak electricity consumption period is the peak electricity price period.

[0060] S102, when the current moment is in any low electricity consumption period, the preset energy storage device is charged with the mains electricity; wherein the energy storage device is used to store electric energy, and the energy storage device is one of the household electric energy supply sources, so as to supply power to household appliances.

[0061] S103, when the current moment is in any peak electricity consumption period, the household electricity supply source is switched to the energy storage device to supply power through the energy storage device, until the remaining power of the energy storage device reaches the power threshold, and then the household electricity supply source is switched to the mains to supply power through the mains.

[0062] In implementation, the energy storage device refers to a fixed power source that can store electrical energy and supply power to household appliances. Exemplarily, the energy storage device can be a storage battery. The present application limits the use of mains electricity to charge the energy storage device. In other embodiments, the energy storage device can also be charged and stored by converting solar energy into electrical energy and converting thermal energy into electrical energy. The management system will use the mains electricity to charge the energy storage device when the current moment falls into any low-power consumption period (i.e., low-power price period) based on the latest updated electricity price change curve over time. When the current moment falls into any peak power consumption period (i.e., peak power price period), the management system will give priority to controlling the energy storage device to supply power until the remaining power of the energy storage device reaches the power threshold, and then connect to the mains power grid and use the mains power for power supply, where the power threshold here can be the minimum power of the energy storage device set in advance.

[0063] Optionally, the household electric energy usage management method further includes the following steps:

[0064] Record and store the electricity required by the residents during each peak electricity consumption period in the historical period a;

[0065] S102 also includes the following sub-steps:

[0066] S1021, when the current moment is in any low-power consumption period, determine the remaining power c of the energy storage device at the current moment, and the required power a' of the peak power consumption period after the current low-power consumption period and adjacent to the current low-power consumption period, and calculate the minimum charging power e of the energy storage device based on the required power a' and the current remaining power c = a'-c-power threshold;

[0067] S1022, if the charging cost of the charging power during the off-peak period is not higher than the electricity cost Y during the peak period adjacent to the current time, where Y= a'*the electricity price during the peak period, then the preset energy storage device is charged with the mains electricity.

[0068] In implementation, the required electric energy a of each household during each peak period of electricity consumption in the historical period (i.e., the specified period) is recorded and stored every specified period. The required electric energy a is the total electricity consumption of the corresponding household during the corresponding peak period of electricity consumption. Whenever the current moment is in any low-consumption period, that is, whenever the current moment reaches the starting time of any low-consumption period, the management system will obtain the remaining electric energy of the household's energy storage device, and determine the required electric energy a' for the peak period of electricity consumption after the current low-consumption period and immediately adjacent to the current low-consumption period from the stored required electric energy of all peak periods of electricity consumption of the user in the previous specified period, so as to calculate the minimum amount of energy storage that needs to be reserved in the current low-consumption period. The charging energy e is calculated, and then the charging cost X (X=e*the electricity price during the current low electricity price period) required to charge the minimum charging energy e during the current low electricity consumption period is calculated, and the electricity cost Y consumed by the required energy a' during the peak electricity consumption period after the current low electricity consumption period and immediately adjacent to the current low electricity consumption period is calculated. If X≤Y, the preset energy storage device is charged with AC power, otherwise the energy storage device will not be charged and stored during the current low electricity consumption period.

[0069] Optionally, “charging a preset energy storage device using the mains electricity” in S1022 specifically includes the following steps:

[0070] According to the pre-stored correspondence between the charging electric energy and the charging time, the energy storage time t required for the minimum charging electric energy e is determined;

[0071] According to the duration T of the current low electricity consumption period and the determined energy storage duration t, the intermittent charging period t' is determined, and according to the intermittent charging period t', the preset energy storage device is intermittently charged using the mains until the energy stored in the energy storage device is not less than the minimum energy b.

[0072] In implementation, the management system pre-stores a correspondence between charging power and charging time, which can be expressed in the form of a mathematical formula, and is intended to calculate the charging time required to charge the corresponding charging power based on the charging power; when it is necessary to use the mains power to charge the preset energy storage device during the off-peak period, the management system will calculate the required energy storage time t based on the determined minimum charging power e and the above-mentioned correspondence, and then calculate the charging suspension time t'=Tt based on the duration T of the current off-peak period, and calculate the charging suspension time t'=Tt according to the electricity price during the off-peak period. According to the change of electricity price over time, select the charging period in the order of electricity price from low to high, and the charging period meets the following requirements: the duration of the charging period is equal to the energy storage duration t, and the charging period includes several sub-periods, there is a time interval between adjacent sub-periods, and the sum of the time intervals between all sub-periods is ≤ t', t' ≥ 0; according to the fluctuation of electricity price over time in the current electricity consumption valley period, in the order of electricity price from low to high, give priority to selecting the period with the lowest electricity price as the sub-period, so that the average electricity price corresponding to all sub-periods is not greater than the average electricity price in the period corresponding to all time intervals.

[0073] Optionally, the household electric energy usage management method further includes the following steps:

[0074] At every designated period, a power curve chart showing the change of power consumption over time is sent to the residents so that the residents can know the power consumption in the designated period; wherein the power curve chart also includes the electricity price, each peak power consumption period, and the energy storage power supply period that can be supplied by the energy storage device during each peak power consumption period;

[0075] Receive a selection instruction from the resident, update the corresponding energy storage power supply period in the power curve diagram using the custom period in the selection instruction, and determine and update the required power a for the corresponding peak power application period according to the updated energy storage power supply period;

[0076] The step “when the current time is in any peak power consumption period, switching the household power supply source to the energy storage device” in S103 includes the following sub-steps:

[0077] When the current moment is in any energy storage power supply period, the household electricity supply source is switched to the energy storage device.

[0078] In implementation, the management system is used to control the power consumption monitoring equipment to display the real-time power consumption of the corresponding households in real time, and at every specified period, the power consumption monitoring equipment will be controlled to display a curve graph showing the power consumption of the corresponding households in the previous specified period changing with time, and the curve graph will also show the electricity price corresponding to each moment and the electricity price corresponding to the power consumption of the corresponding households at the corresponding moment, as well as the energy storage power supply period that can be supplied by the energy storage device during each peak power consumption period in the curve graph; it should be noted that the energy storage power supply period can be expressed in the form of a time interval, and the management system of the present application determines the energy storage power supply period from the target peak power consumption period by default according to the change of electricity price over time during the target peak power consumption period, in the order of electricity price from high to low, so as to ensure that the electricity price at any time corresponding to the energy storage power supply period is not higher than the electricity price corresponding to any time in other time periods within the target peak power consumption period except the energy storage power supply period.

[0079] And the duration of the target energy storage power supply period = e / f; among them, the target peak power consumption period refers to any peak power consumption period, and the target energy storage power supply period refers to the energy storage power supply period corresponding to the target peak power consumption period; e refers to the maximum amount of electric energy that can be stored by the energy storage device during the low power consumption period before the target peak power consumption period and immediately adjacent to the target peak power consumption period; f refers to the average rate of electric energy consumption of the corresponding household in the previous specified period and the period corresponding to the target peak power consumption period.

[0080] The electricity consumption monitoring device may be preset with a touch screen for displaying an electricity consumption curve graph to the corresponding resident and for triggering a selection instruction by touch. For example, the resident may touch and drag the endpoint time of any energy storage power supply period on the electricity consumption curve graph, thereby triggering a selection instruction, so that the management system uses the energy storage power supply period formed after the resident touches and drags as a custom period, and replaces the originally touched and dragged energy storage power supply period with a custom updated period, and then determines the electric energy consumed by the corresponding resident in the energy storage power supply period in the previous specified cycle according to the updated energy storage power supply period, that is, the required electric energy a. If the required electric energy a exceeds the maximum electric energy that can be stored by the energy storage device in the electricity trough period before the peak power consumption period of the energy storage power supply period and immediately adjacent to the peak power consumption period, the electricity consumption monitoring device is controlled to display a reminder message to inform the resident that the currently defined energy storage power supply period may exceed the range of electric power that the energy storage device can supply.

[0081] Optionally, the household electric energy usage management method further includes the following steps:

[0082] S104, during the peak power consumption period, regularly predict the energy storage supply interruption time according to the change of the remaining power of the energy storage device, and compare the energy storage supply interruption time obtained by each prediction with the end time of the peak power consumption period; wherein the energy storage supply interruption time refers to the time when the remaining power of the energy storage device reaches the power threshold;

[0083] S105, whenever the predicted energy storage cut-off time is not earlier than the end time of the peak power consumption period, the household power supply source is switched to the energy storage device to supply power through the energy storage device;

[0084] S106, whenever the predicted energy storage power outage time is earlier than the end time of the peak power consumption period, determine and execute the power supply switching plan to switch the household power supply source to the mains or the energy storage device, until the predicted energy storage power outage time is no earlier than the end time of the peak power consumption period; and ensure that at any time during the peak power consumption period, the density of residents who switch the household power supply source to the mains is within a preset range.

[0085] In implementation, whenever the current moment coincides with the start moment of the target peak power consumption period, that is, when the current moment enters the target peak power consumption period, the management system will regularly predict the energy storage outage time. The prediction method can be: calculate the energy consumption rate f' based on the difference between the power consumption at the predicted moment and the previous predicted moment, and calculate the energy storage outage time = (g-energy threshold) / f' based on the remaining power g of the energy storage device at the predicted moment.

[0086] The management system then compares the energy storage cut-off time corresponding to the target peak electricity consumption period with the end time of the target peak electricity consumption period. If the energy storage cut-off time is not earlier than the end time of the peak electricity consumption period, the energy storage device is used as the household electricity supply source.

[0087] If the energy storage power supply is cut off earlier than the peak power consumption period, it means that the mains power needs to be used for power supply during the target peak power consumption period. Therefore, this application proposes to implement a switching power supply plan to achieve switching power supply between the mains power and the energy storage device. The specific steps of implementing the switching power supply plan will be described in detail below.

[0088] Methods for managing household electrical energy use include:

[0089] The household information of the households whose household electricity supply source is switched to the mains electricity due to the execution of the power supply switching plan is added to the preset queue.

[0090] The specific steps of determining and executing the switching power supply scheme in S106 include:

[0091] Residents whose predicted energy storage outage time is earlier than the end of the peak electricity consumption period are regarded as residents to be managed;

[0092] Determine the total power consumption of all residents in the preset queue at the current moment. If the total power consumption meets the preset switching condition, generate and execute a switching power supply plan so that the household power supply source of the managed resident is switched to the mains power supply; wherein the preset switching condition refers to: the total power consumption is lower than the preset power upper limit value, and the power difference with the preset power upper limit value is not less than the power consumption of the managed resident at the current moment;

[0093] If the preset switching conditions are not met, residents whose remaining power except the energy storage device reaches the power threshold are screened out from the preset queue; for the screened out residents, the household power supply sources of the corresponding residents are switched to the energy storage device one by one in the order of the time they were added to the preset queue until the preset switching conditions are met.

[0094] In implementation, the residents who need to switch the power supply plan are regarded as the residents to be managed, and the sum of the power consumption of all residents in the preset queue at the current time (i.e., the total power consumption) is calculated. If the total power consumption is lower than the preset power upper limit, and the total power consumption + the power consumption of the residents to be managed at the current time ≤ the preset power upper limit, it means that the preset switching condition is met. At this time, the residents to be managed are added to the preset queue. If the preset switching condition is not met, the residents are screened from the preset queue, and the screened residents are the residents whose remaining power is greater than the power threshold. Then, for the screened residents, the corresponding residents are removed from the preset queue one by one in the order of the time of adding to the preset queue from first to last, and the corresponding household power supply source is switched to the energy storage device. After each resident is removed, it is re-determined whether the preset queue after the removal meets the preset switching condition until the preset switching condition is met. Among them, the preset queue performs the addition and removal operations of residents according to the rule of adding from the end of the queue and removing from the head of the queue. In addition, whenever the household power supply source of a resident in the preset queue is switched from the mains to an energy storage device, the corresponding resident will be removed from the preset queue.

[0095] The present application also discloses a household power usage management system. Figure 2 ,include:

[0096] The peak-valley period determination module 1 is used to regularly update and determine the low-consumption period and the peak-consumption period;

[0097] The energy storage device charging module 2 is used to charge the preset energy storage device with the mains electricity when the current moment is in any low power consumption period; wherein the energy storage device is used to store electric energy, and the energy storage device is one of the household electric energy supply sources, so as to supply power to household appliances;

[0098] The power supply source switching module 3 is used to switch the household power supply source to the energy storage device when the current moment is in any peak power consumption period, so as to supply power through the energy storage device, until the remaining power of the energy storage device reaches the power threshold, and then switch the household power supply source to the mains power to supply power through the mains power.

[0099] Optionally, the peak-valley period determination module 1 is also used to regularly determine how electricity prices change over time within a specified period, determine the low electricity price period and the peak electricity price period, and use the low electricity price period as the low electricity consumption period and the peak electricity price period as the peak electricity consumption period.

[0100] Optionally, it also includes an electric energy storage module for recording and storing the electric energy required by the residents during each peak electricity consumption period in the historical period;

[0101] The energy storage device charging module 2 is also used to determine the remaining power c of the energy storage device at the current moment, and the required power a' of the peak power consumption period after the current low power consumption period and adjacent to the current low power consumption period, when the current moment is in any low power consumption period, and calculate the minimum charging power e of the energy storage device = a'-c-power threshold based on the required power a' and the current remaining power c; and is also used to use the city power to charge the preset energy storage device if the charging cost of the charging power in the low power consumption period is not higher than the power cost Y of the peak power consumption period adjacent to the current moment, where Y= a'*the electricity price during the peak power consumption period.

[0102] Optionally, the energy storage device charging module 2 is also used to determine the energy storage time t required for the minimum charging energy e based on the pre-stored correspondence between the charging electric energy and the charging time; it is also used to determine the intermittent charging period t' based on the duration T of the current low-power consumption period and the determined energy storage time t, and according to the intermittent charging period t', use the mains power to intermittently charge the preset energy storage device until the energy stored in the energy storage device is not less than the minimum energy b.

[0103] Optionally, it also includes a power supply period definition module, which is used to send a power curve graph showing power consumption changes over time to residents at specified intervals, so that residents can be informed of power consumption within the specified period; wherein the power curve graph also includes electricity prices, each peak power consumption period, and the energy storage power supply period during each peak power consumption period that can be supplied by the energy storage device; it is also used to receive selection instructions issued by residents, use the custom time period in the selection instruction to update the corresponding energy storage power supply period in the power curve graph, and determine and update the required power a for the corresponding peak power consumption period based on the updated energy storage power supply period.

[0104] The power supply source switching module 3 is also used to switch the household power supply source to the energy storage device when the current moment is in any energy storage power supply period.

[0105] Optionally, it also includes a power outage time prediction module, which is used to regularly predict the energy storage power outage time according to the change of the remaining power of the energy storage device during the peak power consumption period, and compare the energy storage power outage time predicted each time with the end time of the peak power consumption period; wherein the energy storage power outage time refers to the time when the remaining power of the energy storage device reaches the power energy threshold; and is also used to switch the household power supply source to the energy storage device to supply power through the energy storage device whenever the predicted energy storage power outage time is not earlier than the end time of the peak power consumption period;

[0106] It is also used to determine and execute a power supply switching plan whenever the predicted energy storage supply interruption time is earlier than the end time of the peak electricity consumption period, so as to switch the household electricity supply source to the mains or the energy storage device, until the energy storage supply interruption time is predicted to be no earlier than the end time of the peak electricity consumption period; and to ensure that at any time during the peak electricity consumption period, the density of residents who switch the household electricity supply source to the mains is within a preset range.

[0107] Optionally, it also includes a preset queue update module for adding the household information of the residents whose household power supply source is switched to the mains power due to the execution of the power supply switching scheme to the preset queue.

[0108] The power outage time prediction module is also used to select residents whose predicted energy storage power outage time is earlier than the end time of the peak power consumption period as residents to be managed; it is also used to determine the total power consumption of all residents in the preset queue at the current time, and if the total power consumption meets the preset switching condition, generate and execute the switching power supply plan so that the household power supply source of the residents to be managed is switched to the city power; wherein the preset switching condition refers to: the total power consumption is lower than the preset power upper limit value, and the power difference with the preset power upper limit value is not less than the power consumption of the residents to be managed at the current time;

[0109] It is also used to select residents whose remaining power except the energy storage device reaches the power threshold from the preset queue if the preset switching conditions are not met; for the selected residents, the household power supply sources of the corresponding residents are switched to the energy storage device one by one in the order of the time of addition to the preset queue until the preset switching conditions are met.

[0110] An embodiment of the present application also discloses a household power usage management device, which includes a memory and a processor, and the memory stores a computer program that can be loaded by the processor and execute the household power usage management method as described above.

[0111] An embodiment of the present application also discloses a computer-readable storage medium, which stores a computer program that can be loaded by a processor and execute the household electricity usage management method as described above. The computer-readable storage medium includes, for example: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0112] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0113] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the protection scope of the application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A household electric energy usage management method, characterized in that: include: Regularly update and determine the low and peak electricity consumption periods; When the current moment is in any low electricity consumption period, the preset energy storage device is charged by using the mains electricity; wherein the energy storage device is used to store electric energy, and the energy storage device is one of the household electric energy supply sources, so as to supply power to household appliances; When the current moment is in any peak period of electricity consumption, the household power supply source is switched to the energy storage device to supply power through the energy storage device, until the remaining power of the energy storage device reaches the power threshold, and then the household power supply source is switched to the mains to supply power through the mains; During the peak power consumption period, the energy storage supply cut-off time is regularly predicted according to the change of the remaining power of the energy storage device, and the energy storage supply cut-off time predicted each time is compared with the end time of the peak power consumption period; wherein the energy storage supply cut-off time refers to the time when the remaining power of the energy storage device reaches the power threshold; Whenever the predicted energy storage disconnection time is not earlier than the end time of the peak power consumption period, the household power supply source is switched to the energy storage device to supply power through the energy storage device; Whenever the predicted energy storage disconnection time is earlier than the end time of the peak power consumption period, the residents whose predicted energy storage disconnection time is earlier than the end time of the peak power consumption period are regarded as the residents to be managed; Determine the total power consumption of all residents in the preset queue at the current moment, and if the total power consumption meets the preset switching condition, generate and execute a switching power supply plan so that the household power supply source of the to-be-managed resident is switched to the mains; wherein the preset switching condition refers to: the total power consumption is lower than the preset power upper limit value, and the power difference with the preset power upper limit value is not less than the power consumption of the to-be-managed resident at the current moment; If the preset switching condition is not met, the residents whose remaining power except the energy storage device reaches the power threshold are screened out from the preset queue; for the screened residents, the household power supply sources of the corresponding residents are switched to the energy storage device one by one in the order of the time of addition to the preset queue until the preset switching condition is met; The household information of the households whose household electricity supply source is switched to the mains electricity due to the execution of the power supply switching plan is added to the preset queue.

2. The household electric energy usage management method according to claim 1, characterized in that: The said regularly updating and determining the low-consumption period and the peak-consumption period include: Regularly determine how electricity prices change over time within a specified period, identify periods of low electricity prices and periods of peak electricity prices, and use periods of low electricity prices as periods of low electricity consumption, and periods of peak electricity prices as periods of peak electricity consumption.

3. The household electric energy usage management method according to claim 2, characterized in that: The method further comprises: Record and store the electricity required by the residents during each peak electricity consumption period in the historical period a; When the current moment is in any low electricity consumption period, the preset energy storage device is charged with city electricity, including: When the current moment is in any low-power consumption period, determine the remaining power c of the energy storage device at the current moment, and the required power a' of the peak power consumption period after the current low-power consumption period and adjacent to the current low-power consumption period, and calculate the minimum charging power e of the energy storage device based on the required power a' and the current remaining power c = a'-c-power threshold; If the charging cost of the charging electricity during the off-peak period is not higher than the electricity cost Y during the peak period adjacent to the current time, where Y = a'* the electricity price during the peak period, the preset energy storage device is charged using the mains electricity.

4. The household electric energy usage management method according to claim 3, characterized in that: The method of charging the preset energy storage device with the mains electricity comprises: Determine the energy storage time t required for the minimum charging energy e according to the pre-stored corresponding relationship between the charging energy and the charging time; According to the duration T of the current low electricity consumption period and the determined energy storage duration t, the intermittent charging period t' is determined, and according to the intermittent charging period t', the preset energy storage device is intermittently charged using the mains until the energy stored in the energy storage device is not less than the minimum energy b.

5. The household electric energy usage management method according to claim 3, characterized in that: The method further comprises: At every designated period, a power curve chart showing the change of power consumption over time is sent to the resident, so that the resident can learn about the power consumption in the designated period; wherein the power curve chart also includes the power price, each peak power consumption period, and the energy storage power supply period during each peak power consumption period that can be supplied by the energy storage device; Receive a selection instruction issued by the resident, update the corresponding energy storage power supply period in the power curve diagram using the custom period in the selection instruction, and determine and update the required electric energy a for the peak power application period according to the updated energy storage power supply period; When the current moment is in any peak period of electricity consumption, switching the household electricity supply source to the energy storage device includes: When the current moment is in any energy storage power supply period, the household electricity supply source is switched to the energy storage device.

6. A household power usage management system, characterized in that: include: A peak-valley period determination module (1) is used to regularly update and determine the low-consumption period and the peak-consumption period; An energy storage device charging module (2) is used to charge a preset energy storage device using the mains electricity when the current moment is in any low electricity consumption period; wherein the energy storage device is used to store electric energy, and the energy storage device is one of the household electric energy supply sources, so as to supply power to household appliances; An electric energy supply source switching module (3) is used to switch the household electric energy supply source to the energy storage device when the current time is in any peak power consumption period, so as to supply power through the energy storage device, until the remaining electric energy of the energy storage device reaches the electric energy threshold, and then switch the household electric energy supply source to the mains power so as to supply power through the mains power; The power outage time prediction module is used to regularly predict the energy storage power outage time according to the change of the remaining power of the energy storage device during the peak power consumption period, and compare the energy storage power outage time predicted each time with the end time of the peak power consumption period; wherein the energy storage power outage time refers to the time when the remaining power of the energy storage device reaches the power energy threshold; and is also used to switch the household power supply source to the energy storage device to supply power through the energy storage device whenever the predicted energy storage power outage time is not earlier than the end time of the peak power consumption period; The power outage time prediction module is also used for, whenever the predicted energy storage power outage time is earlier than the end time of the peak power consumption period, to take the residents whose predicted energy storage power outage time is earlier than the end time of the peak power consumption period as the residents to be managed; it is also used for determining the total power consumption of all residents in the preset queue at the current time, and if the total power consumption meets the preset switching condition, generating and executing the switching power supply plan so that the household power supply source of the residents to be managed is switched to the city power; wherein the preset switching condition refers to: the total power consumption is lower than the preset power upper limit value, and the power difference with the preset power upper limit value is not less than the power consumption of the residents to be managed at the current time; it is also used for, if the preset switching condition is not met, to filter out the residents whose remaining power except the energy storage device reaches the power threshold from the preset queue; for the filtered residents, according to the order of the addition time to the preset queue, the household power supply source of the corresponding residents is switched to the energy storage device one by one, until the preset switching condition is met; The preset queue updating module is used to add the household information of the residents whose household power supply source is switched to the mains power due to the execution of the power supply switching scheme to the preset queue.

7. A household power usage management device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and execute the method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that: A computer program is stored which can be loaded by a processor and execute the method according to any one of claims 1 to 5.

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