Scheduling and control method, intelligent distribution box, energy storage system and VPP scheduling cloud platform

Abstract

The invention provides a scheduling and control method, an intelligent distribution box, an energy storage system and a VPP scheduling cloud platform, and relates to the technical field of energy storage systems, and the method comprises the steps: obtaining a priority sequence of a plurality of electricity loads; based on the residual electric quantity of the energy storage battery, determining whether to respond to a discharge instruction from the VPP scheduling cloud platform; under the condition of responding to the discharging instruction, according to the residual electric quantity and the priority sequence, power supply to one or more electric loads is selected and controlled; and responding to a charging instruction generated by the VPP scheduling cloud platform based on the supportable scheduling power, and according to the controllable load power and the priority sequence, selecting and controlling to supply power to one or more electric loads. In the technical scheme of the invention, when the energy storage system responds to the scheduling instruction, the energy storage battery and a plurality of electricity loads can be taken into consideration, the schedulable capacity can be expanded, the VPP scheduling requirement can be responded to the maximum extent, and thus the maximum response to the scheduling instruction is realized.

Description

Technical Field

[0001] This invention relates to the field of energy storage system technology, and more specifically, to a scheduling and control method, an intelligent distribution box, an energy storage system, and a VPP scheduling cloud platform. Background Technology

[0002] With the rapid development of new energy technologies, the application of residential energy storage systems is becoming increasingly widespread. Existing residential energy storage systems typically have functions such as self-generation and self-consumption, peak shaving and valley filling, and emergency backup power. However, these functions are mostly limited to a single household scenario, making it difficult to achieve regional-level coordinated dispatch, which restricts the maximization of the value of distributed energy. Against this backdrop, VPP (Virtual Power Plant) technology has emerged.

[0003] In related technologies, VPP scheduling systems or methods can only schedule the charging and discharging of batteries in energy storage systems. When the energy storage system receives a discharge command, it supplies power to the grid through the batteries; when it receives a charging command, it supplies power to the batteries through the grid. This approach ignores the multiple electrical loads connected to the energy storage system, thus making it difficult to maximize the response to scheduling commands. Summary of the Invention

[0004] In order to solve or improve the technical problem that energy storage systems in related technologies are unable to maximize their response to dispatch instructions when they receive them, one objective of the present invention is to provide a dispatching and control method for residential energy storage.

[0005] One objective of this invention is to provide a method for scheduling and controlling residential energy storage.

[0006] Another object of the present invention is to provide an intelligent power distribution box.

[0007] Another object of the present invention is to provide an energy storage system.

[0008] Another objective of this invention is to provide a VPP scheduling cloud platform.

[0009] To achieve the above objectives, the first aspect of the present invention provides a scheduling and control method for residential energy storage, applied to an energy storage system. The energy storage system is used to communicate with a VPP scheduling cloud platform. The energy storage system includes connected energy storage batteries and a smart distribution box, and the smart distribution box is used to connect to multiple electrical loads.

[0010] The scheduling and control method includes: acquiring a priority sequence of multiple electrical loads; determining whether to respond to a discharge command from the VPP scheduling cloud platform based on the remaining power of the energy storage battery; if responding to the discharge command, selecting to control the supply of power to one or more electrical loads according to the remaining power and priority sequence; and responding to a charging command from the VPP scheduling cloud platform based on the power that can be supported for scheduling, wherein the power that can be supported for scheduling is equal to the sum of the charging power of the energy storage system and the power of the controllable load, selecting to control the supply of power to one or more electrical loads according to the power of the controllable load and priority sequence.

[0011] This invention aims to provide a scheduling and control method for residential energy storage. The energy storage system can respond to scheduling commands (discharge commands or charging commands) from a VPP scheduling cloud platform based on the priority sequence of multiple electrical loads. In response to a discharge command from the VPP scheduling cloud platform, as the remaining power gradually decreases, the energy storage system can sequentially disconnect the connection between lower-priority electrical loads and the smart distribution box to avoid these lower-priority loads consuming excessive energy. Therefore, the energy storage system can maximize its response to discharge commands. In response to a charging command from the VPP scheduling cloud platform, controllable electrical loads are identified from multiple electrical loads with different priority sequences, bringing both the energy storage system itself and the controllable electrical loads within the dispatchable range. This facilitates expanding the dispatchable capacity, and the energy storage system can maximize its response to charging commands.

[0012] In summary, when responding to dispatch commands, energy storage systems can take into account both the energy storage batteries and multiple electrical loads, which helps to expand the dispatchable capacity and respond to VPP dispatch requirements to the greatest extent, thereby maximizing the response to dispatch commands.

[0013] In some technical solutions, optionally, determining whether to respond to a discharge command from the VPP scheduling cloud platform based on the remaining power of the energy storage battery includes: determining whether the remaining power of the energy storage battery is greater than or equal to a first preset power threshold; responding to a discharge command from the VPP scheduling cloud platform if the remaining power is greater than or equal to the first preset power threshold; and not responding to a discharge command from the VPP scheduling cloud platform if the remaining power is less than the first preset power threshold.

[0014] This technical solution compares the remaining power capacity with a minimum power reserve threshold to determine whether to respond to a discharge command, ensuring that the energy storage system has sufficient power available for high-priority loads. This design maximizes the response to discharge commands without affecting basic household electricity consumption, thus improving the user experience.

[0015] In some technical solutions, optionally, multiple electrical loads include high-priority electrical loads, medium-priority electrical loads, and low-priority electrical loads; based on the remaining power and priority sequence, power is selectively supplied to one or more electrical loads, including: when the remaining power is less than a second preset power threshold, power is selectively supplied to the high-priority electrical load and the medium-priority electrical load; wherein the second preset power threshold is greater than a first preset power threshold; when the remaining power is less than a third preset power threshold, power is selectively supplied to the high-priority electrical load; wherein the third preset power threshold is greater than the first preset power threshold and less than the second preset power threshold.

[0016] In this technical solution, when the energy storage system responds to a discharge command, it sequentially disconnects the connection between the lower priority loads and the smart distribution box as the remaining power gradually decreases, in order to avoid the lower priority loads consuming too much power and to ensure maximum response to the discharge command.

[0017] In some technical solutions, optionally, after obtaining the priority sequence of multiple electrical loads, the scheduling and control method further includes: marking the power supply circuit between the intelligent distribution box and each electrical load according to the priority sequence of the multiple electrical loads, so as to set the multiple power supply circuits as high priority power supply circuits, medium priority power supply circuits and low priority power supply circuits.

[0018] In this technical solution, a priority sequence of multiple power supply circuits is set according to the priority sequence of multiple electrical loads. This allows for the subsequent cutting off or closing of power supply circuits in response to dispatch commands, thereby stopping power supply to the corresponding electrical load or continuing power supply to the corresponding electrical load.

[0019] In some technical solutions, optionally, when the remaining power is less than a second preset power threshold, power is supplied to high-priority and medium-priority power loads, including: when the remaining power is less than the second preset power threshold, controlling the low-priority power supply circuit to be disconnected, and the high-priority and medium-priority power supply circuits to be closed; when the remaining power is less than a third preset power threshold, power is supplied to high-priority power loads, including: when the remaining power is less than the third preset power threshold, controlling the low-priority and medium-priority power supply circuits to be disconnected, and the high-priority power supply circuit to be closed.

[0020] In this technical solution, when the energy storage system responds to a discharge command, as the remaining power gradually decreases, it sequentially disconnects the power supply circuits with lower priority sequences to disconnect the connection between the lower priority loads and the intelligent distribution box. This prevents the lower priority loads from consuming too much power and ensures maximum response to the discharge command.

[0021] In some technical solutions, optionally, power is supplied to one or more electrical loads based on the controllable load power and priority sequence, including: supplying power to the high-priority electrical load when the power consumption of the high-priority electrical load is equal to the controllable load power; supplying power to the high-priority electrical load and the medium-priority electrical load when the sum of the power consumption of the high-priority electrical load and the medium-priority electrical load is equal to the controllable load power; and supplying power to the high-priority electrical load, the medium-priority electrical load, and the low-priority electrical load when the sum of the power consumption of the high-priority electrical load, the medium-priority electrical load, and the low-priority electrical load is equal to the controllable load power.

[0022] In this technical solution, when responding to a charging command, power is first supplied to loads with higher priority in the priority sequence, and then power is supplied to loads with lower priority in the priority sequence, until the sum of the power consumption of the loads receiving power equals the power of the controllable load.

[0023] The second aspect of the present invention provides a scheduling and control method for residential energy storage, applied to a VPP scheduling cloud platform, wherein the VPP scheduling cloud platform is used to communicate with the energy storage system, and the energy storage system is used to connect with multiple electrical loads.

[0024] The scheduling and control method includes: sending a discharge command to the energy storage system so that the energy storage system determines whether to respond to the discharge command based on the remaining charge of the energy storage battery; if it responds to the discharge command, selecting and controlling the supply of power to one or more electrical loads according to the remaining charge and the priority sequence of multiple electrical loads; generating a charging command based on the dispatchable power, wherein the dispatchable power is equal to the sum of the charging power of the energy storage system and the controllable load power; and sending a charging command to the energy storage system so that the energy storage system responds to the charging command and selects and controls the supply of power to one or more electrical loads according to the controllable load power and the priority sequence.

[0025] This invention aims to provide a scheduling and control method for residential energy storage. The energy storage system can respond to scheduling commands (discharge commands or charging commands) from a VPP scheduling cloud platform based on the priority sequence of multiple electrical loads. In response to a discharge command from the VPP scheduling cloud platform, as the remaining power gradually decreases, the energy storage system can sequentially disconnect the connection between lower-priority electrical loads and the smart distribution box to avoid these lower-priority loads consuming excessive energy. Therefore, the energy storage system can maximize its response to discharge commands. In response to a charging command from the VPP scheduling cloud platform, controllable electrical loads are identified from multiple electrical loads with different priority sequences, bringing both the energy storage system itself and the controllable electrical loads within the dispatchable range. This facilitates expanding the dispatchable capacity, and the energy storage system can maximize its response to charging commands.

[0026] In summary, when responding to dispatch commands, energy storage systems can take into account both the energy storage batteries and multiple electrical loads, which helps to expand the dispatchable capacity and respond to VPP dispatch requirements to the greatest extent, thereby maximizing the response to dispatch commands.

[0027] A third aspect of this invention provides an intelligent distribution box, comprising: an EMS module, used to execute the steps of the household energy storage scheduling and control method of any of the technical solutions in the first aspect described above. The intelligent distribution box possesses the beneficial effects of any of the technical solutions in the first aspect described above, which will not be elaborated further here.

[0028] A fourth aspect of this invention provides an energy storage system, comprising: an energy storage battery for storing or releasing electrical energy; an energy storage inverter connected to the energy storage battery and for connecting to a photovoltaic panel; and a smart distribution box as described in the third aspect above, connected to the energy storage inverter, for connecting to the power grid, and for connecting to multiple electrical loads. The energy storage system possesses the beneficial effects of any of the technical solutions in the first aspect above, which will not be elaborated further here.

[0029] A fifth aspect of this invention provides a VPP scheduling cloud platform, comprising: a memory and a processor, wherein the memory stores a program or instructions executable on the processor, and the processor executes the program or instructions to implement the steps of the residential energy storage scheduling and control method described in the second aspect above. The VPP scheduling cloud platform possesses the beneficial effects described in the second aspect above, which will not be elaborated further here.

[0030] Additional aspects and advantages of the technical solutions of the present invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0031] Figure 1 A schematic diagram of an energy storage system according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of an intelligent power distribution box according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of an energy storage system according to another embodiment of the present invention is shown; Figure 4 A flowchart of a method for scheduling and controlling residential energy storage according to an embodiment of the present invention is shown; Figure 5 A flowchart of a method for scheduling and controlling residential energy storage according to another embodiment of the present invention is shown; Figure 6 A flowchart of a method for scheduling and controlling residential energy storage according to another embodiment of the present invention is shown; Figure 7 A flowchart of a method for scheduling and controlling residential energy storage according to another embodiment of the present invention is shown; Figure 8 A flowchart of a method for scheduling and controlling residential energy storage according to another embodiment of the present invention is shown; Figure 9 A flowchart of a method for scheduling and controlling residential energy storage according to another embodiment of the present invention is shown; Figure 10 A flowchart of a method for scheduling and controlling residential energy storage according to another embodiment of the present invention is shown; Figure 11 A structural block diagram of a VPP scheduling cloud platform according to an embodiment of the present invention is shown.

[0032] in, Figures 1 to 11 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100: Intelligent distribution box; 120: EMS module; 140: Remote switch module; 300: Energy storage system; 320: Energy storage battery; 340: Energy storage inverter; 410: Photovoltaic panel; 420: Power grid; 430: Electrical load; 500: VPP dispatch cloud platform; 510: Memory; 520: Processor. Detailed Implementation

[0033] To better understand the above-described objectives, features, and advantages of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, embodiments of the invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0035] With the rapid development of new energy technologies, the application of residential energy storage systems is becoming increasingly widespread. Existing residential energy storage systems typically have functions such as self-generation and self-consumption, peak shaving and valley filling, and emergency backup power. However, these functions are mostly limited to a single household scenario, making it difficult to achieve regional-level coordinated dispatch, which restricts the maximization of the value of distributed energy. Against this backdrop, VPP (Virtual Power Plant) technology has emerged.

[0036] A Virtual Power Plant (VPP) is essentially a smart energy management network that aggregates a large number of distributed energy resources (such as home energy storage devices, solar photovoltaic systems, and electric vehicles) through advanced information technology and software systems. Although VPPs are called "power plants," they do not have physical factory buildings; their core lies in "communication" and "aggregation." Through a control center, VPPs can coordinate and optimize these dispersed energy resources and provide ancillary services such as peak shaving and frequency regulation to the power grid, thereby generating revenue.

[0037] In related technologies, VPP scheduling systems or methods can only schedule the charging and discharging of batteries in energy storage systems. When the energy storage system receives a discharge command, it supplies power to the grid through the batteries; when it receives a charging command, it supplies power to the batteries through the grid. This approach ignores the multiple electrical loads connected to the energy storage system, thus making it difficult to maximize the response to scheduling commands.

[0038] This invention aims to provide a scheduling and control method, an intelligent distribution box, an energy storage system, and a VPP (Variable Power Plane) scheduling cloud platform. The energy storage system can respond to scheduling commands (discharge or charge commands) from the VPP scheduling cloud platform based on a priority sequence of multiple electrical loads. In response to a discharge command from the VPP scheduling cloud platform, as the remaining power gradually decreases, the energy storage system can sequentially disconnect lower-priority loads from the intelligent distribution box to prevent them from consuming excessive energy. Therefore, the energy storage system can maximize its response to discharge commands. In response to a charge command from the VPP scheduling cloud platform, controllable electrical loads are identified from multiple electrical loads with different priority sequences, bringing both the energy storage system itself and the controllable loads within the dispatchable range. This facilitates expanding the dispatchable capacity, and the energy storage system can maximize its response to charge commands.

[0039] In summary, when responding to dispatch commands, energy storage systems can take into account both the energy storage batteries and multiple electrical loads, which helps to expand the dispatchable capacity and respond to VPP dispatch requirements to the greatest extent, thereby maximizing the response to dispatch commands.

[0040] In related technologies, the VPP dispatch system comprises a user-side resource layer, a communication and data layer, a VPP smart dispatch center, and a grid and market layer. The user-side resource layer includes a large number of distributed energy resources, such as home energy storage devices, solar photovoltaic systems (outdoor PV), and electric vehicles. The communication and data layer includes smart meters, IoT gateways, and secure data transmission. The VPP smart dispatch center includes a cloud-based brain (cloud platform or control platform). The grid and market layer includes the electricity trading market and grid operators.

[0041] The grid and market layer transmits market electricity price information and grid demand instructions to the VPP smart dispatch center. The VPP smart dispatch center aggregates resources to participate in the market to meet grid demand requirements. The VPP smart dispatch center issues optimized dispatch instructions to the communication and data layer. The communication and data layer issues control signals to the user-side resource layer. The user-side resource layer uploads real-time data to the communication and data layer. The communication and data layer uploads aggregated data to the VPP smart dispatch center. The VPP smart dispatch center sends revenue distribution information to the user-side resource layer, and the grid and market layer sends revenue settlement information to the VPP smart dispatch center.

[0042] However, when responding to scheduling commands, the user-side resource layer of related technologies cannot take into account both the energy storage batteries of the energy storage system and multiple electrical loads, making it difficult to maximize the response to scheduling commands.

[0043] In the technical solution defined by this invention, the energy storage system can take into account both the energy storage battery and multiple electrical loads when responding to dispatch commands, which is conducive to expanding the dispatchable capacity and responding to VPP dispatch requirements to the greatest extent, thereby achieving maximum response to dispatch commands.

[0044] The following reference Figures 1 to 11 This invention describes a scheduling and control method, an intelligent distribution box, an energy storage system, and a VPP scheduling cloud platform provided according to some embodiments of the present invention.

[0045] In one embodiment of the present invention, such as Figure 1 and Figure 3 As shown, the energy storage system 300 is used for communication connection with the VPP dispatch cloud platform 500. The energy storage system 300 includes a connected energy storage battery 320 and a smart distribution box 100. The smart distribution box 100 is used for connection with multiple electrical loads 430.

[0046] The energy storage system 300 is used to receive discharge commands from the VPP scheduling cloud platform 500 and to receive charging commands from the VPP scheduling cloud platform 500.

[0047] The energy storage battery 320 is used to store or release electrical energy. The smart distribution box 100 is used to connect to the power grid 420. The energy storage battery 320 or the power grid 420 supplies power to one or more electrical loads 430 through the smart distribution box 100.

[0048] In some embodiments, optionally, such as Figure 1 and Figure 3 As shown, the energy storage system 300 also includes an energy storage inverter 340. The energy storage inverter 340 is connected to the energy storage battery 320 and to the smart distribution box 100. The energy storage inverter 340 is used to connect to the photovoltaic panel 410.

[0049] In other words, the energy storage inverter 340 is located between the energy storage battery 320 and the smart distribution box 100, and also between the photovoltaic panel 410 and the energy storage battery 320. The energy storage inverter 340 mainly functions as an energy converter.

[0050] Optionally, in some embodiments, the energy storage system 300 is used to communicate with a user terminal. The user terminal can be a mobile device such as a mobile phone or tablet. The user manually sets the priority sequence of multiple electrical loads 430 through an APP (Application) on the user terminal. The APP is used to send information about the priority sequence of the multiple electrical loads 430 to the device cloud (cloud database), and the energy storage system 300 is used to receive the information about the priority sequence of the multiple electrical loads 430 from the device cloud.

[0051] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, the intelligent distribution box 100 includes an EMS (Energy Management System) module 120. The EMS module 120 is used for communication connection with the user terminal and for communication connection with the VPP dispatch cloud platform 500.

[0052] EMS module 120 is used to receive priority sequence information from the user terminal regarding multiple electrical loads 430. EMS module 120 is also used to receive discharge or charging commands from VPP scheduling cloud platform 500.

[0053] In some embodiments, the plurality of electrical loads 430 may optionally include high-priority electrical loads, medium-priority electrical loads, and low-priority electrical loads.

[0054] Optionally, high-priority electrical loads include one or a combination of the following: refrigerators, security equipment, and medical equipment.

[0055] When there is only one type of high-priority electrical load, the high-priority electrical load is any one of the following: refrigerator, security equipment, and medical equipment. When there are multiple types of high-priority electrical loads, the high-priority electrical load includes any combination of refrigerator, security equipment, and medical equipment.

[0056] In one specific embodiment, the security equipment includes access control equipment and monitoring equipment.

[0057] In one specific embodiment, the medical device includes devices such as ventilators.

[0058] Optionally, medium-priority electrical loads include equipment such as air conditioners.

[0059] Optionally, low-priority electrical loads include equipment such as lighting systems.

[0060] It should be noted that users can flexibly set multiple priority sequences for electrical loads 430 according to their own preferences and different time points. The priority sequence of each electrical load 430 is not fixed.

[0061] In some embodiments, the smart distribution box 100 is optionally used to connect to multiple electrical loads 430. The EMS module 120 of the smart distribution box 100 can mark the power supply circuit between the smart distribution box 100 and each electrical load 430 according to the priority sequence of the multiple electrical loads 430, so as to set the multiple power supply circuits as high priority power supply circuits, medium priority power supply circuits and low priority power supply circuits.

[0062] like Figure 2 As shown, in multiple power supply circuits, each power supply circuit is equipped with a remote switch module 140. The remote switch module 140 is used to communicate with the EMS module 120 of the intelligent distribution box 100. The EMS module 120 is used to control the remote switch module 140 to close or open, so that the corresponding power supply circuit is in a closed or open state.

[0063] In some embodiments, the remote switch module 140 optionally includes a control switch and a monitoring module. The monitoring module is used to communicate with the EMS module 120. When the monitoring module receives a closing command from the EMS module 120, the control switch closes to put the corresponding power supply circuit in a closed state (conducting state). When the monitoring module receives a closing command from the EMS module 120, the control switch opens to put the corresponding power supply circuit in a closed state.

[0064] In one embodiment of the present invention, the scheduling and control method for residential energy storage is applied to an energy storage system 300.

[0065] like Figure 4 As shown, the scheduling and control methods for residential energy storage include: S202, obtain the priority sequence of multiple electrical loads.

[0066] Optionally, the energy storage system receives information from the user terminal regarding the priority sequence of multiple electrical loads to obtain the priority sequence of the multiple electrical loads. Specifically, the EMS module of the smart distribution box obtains the priority sequence of the multiple electrical loads so as to set the priority sequence of multiple power supply circuits according to the priority sequence of the electrical loads in subsequent steps.

[0067] Optionally, the multiple electrical loads include high-priority electrical loads, medium-priority electrical loads, and low-priority electrical loads.

[0068] Optionally, high-priority electrical loads include one or a combination of the following: refrigerators, security equipment, and medical equipment.

[0069] When there is only one type of high-priority electrical load, the high-priority electrical load is any one of the following: refrigerator, security equipment, and medical equipment. When there are multiple types of high-priority electrical loads, the high-priority electrical load includes any combination of refrigerator, security equipment, and medical equipment.

[0070] In one specific embodiment, the security equipment includes access control equipment and monitoring equipment.

[0071] In one specific embodiment, the medical device includes devices such as ventilators.

[0072] Optionally, medium-priority electrical loads include equipment such as air conditioners.

[0073] Optionally, low-priority electrical loads include equipment such as lighting systems.

[0074] It should be noted that users can flexibly set the priority sequence of multiple electrical loads according to their own preferences and different time points. The priority sequence of each electrical load is not fixed.

[0075] S204, based on the remaining power of the energy storage battery, determines whether to respond to the discharge command from the VPP scheduling cloud platform; if it responds to the discharge command, it selects to control the supply of power to one or more electrical loads according to the remaining power and priority sequence.

[0076] The energy storage system receives discharge commands from the VPP dispatch cloud platform and determines whether to respond to the discharge command based on the remaining power of the energy storage battery. Specifically, the EMS module of the smart distribution box determines whether to respond to the discharge command based on the remaining power of the energy storage battery.

[0077] Optionally, the remaining power is compared with a preset power threshold to determine whether to respond to a discharge command, and whether to supply power to medium-priority and low-priority power loads when responding to a discharge command.

[0078] In some embodiments, optionally, a discharge command is responded to when the remaining power is greater than or equal to a first preset power threshold; and no discharge command is responded to when the remaining power is less than the first preset power threshold.

[0079] The first preset power threshold is the lower limit for power supply protection of the energy storage system. The remaining power is compared with this lower limit to determine whether to respond to a discharge command, ensuring that the energy storage system has sufficient power available for high-priority loads. This design maximizes the response to discharge commands without affecting basic household electricity consumption, thus improving the user experience.

[0080] In some embodiments, optionally, when the remaining power is less than a second preset power threshold, power is supplied to high-priority power loads and medium-priority power loads; when the remaining power is less than a third preset power threshold, power is supplied to high-priority power loads.

[0081] It should be noted that the second preset battery threshold is greater than the first preset battery threshold. The third preset battery threshold is greater than the first preset battery threshold, but less than the second preset battery threshold.

[0082] S206 responds to charging commands generated by the VPP dispatch cloud platform based on the power that can be dispatched. The power that can be dispatched is equal to the sum of the charging power of the energy storage system and the power of the controllable load. Based on the power of the controllable load and the priority sequence, it selects and controls the supply of power to one or more electrical loads.

[0083] The energy storage system receives charging commands from the VPP dispatch cloud platform. Specifically, the EMS module of the smart distribution box sends information about the available dispatchable power to the VPP dispatch cloud platform in real time. The VPP dispatch cloud platform generates charging commands based on the available dispatchable power and sends the charging commands to the EMS module.

[0084] It should be noted that the dispatchable power refers to the power that the energy storage system and the controllable electrical loads among multiple electrical loads can support the grid for dispatch.

[0085] In theory, the dispatchable power equals the sum of the energy storage system's charging power and the controllable load power. Here, controllable load power refers to the power consumption of controllable electrical loads. Controllable electrical loads are those that can be dispatched under the current scenario. The energy storage system's charging power refers to the power supplied by the grid solely to the energy storage battery.

[0086] When responding to a charging command, power is first supplied to loads with higher priority, then to loads with lower priority, until the sum of the power consumption of the loads receiving power equals the power of the controllable load.

[0087] This invention aims to provide a scheduling and control method for residential energy storage. The energy storage system can respond to scheduling commands (discharge commands or charging commands) from a VPP scheduling cloud platform based on the priority sequence of multiple electrical loads. In response to a discharge command from the VPP scheduling cloud platform, as the remaining power gradually decreases, the energy storage system can sequentially disconnect the connection between lower-priority electrical loads and the smart distribution box to avoid these lower-priority loads consuming excessive energy. Therefore, the energy storage system can maximize its response to discharge commands. In response to a charging command from the VPP scheduling cloud platform, controllable electrical loads are identified from multiple electrical loads with different priority sequences, bringing both the energy storage system itself and the controllable electrical loads within the dispatchable range. This facilitates expanding the dispatchable capacity, and the energy storage system can maximize its response to charging commands.

[0088] In summary, when responding to dispatch commands, energy storage systems can take into account both the energy storage batteries and multiple electrical loads, which helps to expand the dispatchable capacity and respond to VPP dispatch requirements to the greatest extent, thereby maximizing the response to dispatch commands.

[0089] The advantages of the residential energy storage scheduling and control method of the present invention are as follows: Firstly, improve VPP adjustable capacity: With the same battery (energy storage battery) capacity, by incorporating interruptible loads (electrical loads) into the scheduling, the overall responsive power is increased by an average of 25% to 40%.

[0090] Secondly, it ensures power supply to users' critical loads: when the remaining power of the energy storage battery gradually decreases until it approaches the lower limit threshold for power supply, the energy storage system automatically disconnects the connection with the lower priority loads according to the preset priority sequence, so as to ensure that the high priority loads are uninterrupted, which is conducive to improving user experience and safety performance.

[0091] Thirdly, reducing the number of cycles of energy storage batteries and extending their lifespan: By sequentially disconnecting the connection to electrical loads with lower priority, the frequency of deep discharge of energy storage batteries can be reduced, which is expected to reduce the number of cycles by 15% to 20% and extend the lifespan of energy storage batteries by 12 to 18 months.

[0092] Fourthly, it reduces communication bandwidth and cloud computing load: The intelligent distribution box can obtain the priority sequence of multiple power loads and respond to scheduling commands based on the priority sequence. The priority sequence of multiple power loads can be directly determined in the local firmware, and the cloud only needs to send a 1-byte queue control word to complete the scheduling. Compared with the traditional "per-device command" mode, it helps to save more than 80% of the downlink data volume.

[0093] In some embodiments, optionally, such as Figure 5 As shown, based on the remaining power of the energy storage battery, it determines whether to respond to the discharge command from the VPP scheduling cloud platform, including: S2041, determine whether the remaining power of the energy storage battery is greater than or equal to the first preset power threshold.

[0094] The purpose of this step is to compare the remaining charge of the energy storage battery with a first preset charge threshold to determine whether to respond to the discharge command in subsequent steps.

[0095] The first preset power threshold is the lower limit for power supply protection of the energy storage system. The remaining power is compared with this lower limit to determine whether to respond to a discharge command, ensuring that the energy storage system has sufficient power available for high-priority loads. This design maximizes the response to discharge commands without affecting basic household electricity consumption, thus improving the user experience.

[0096] Optionally, it can be determined whether the remaining power of the energy storage battery is greater than or equal to a first preset power threshold, and a first determination result can be generated; if the first determination result is yes, a discharge command is responded to; if the first determination result is no, a discharge command is not responded to.

[0097] S2042, when the remaining power is greater than or equal to the first preset power threshold, responds to the discharge command from the VPP scheduling cloud platform.

[0098] If the remaining power is greater than or equal to the first preset power threshold, it indicates that there is a large amount of remaining power. The energy storage system can supply power to loads with lower priority while meeting the needs of supplying power to high-priority loads, so as to maximize the response to discharge commands.

[0099] S2043: If the remaining power is less than the first preset power threshold, do not respond to the discharge command from the VPP scheduling cloud platform.

[0100] If the remaining power is greater than or equal to the first preset power threshold, it means that the current remaining power is not much. The energy storage system does not respond to the discharge command to ensure that the energy storage system leaves all the remaining power to high-priority loads so that the high-priority loads are not powered for a certain period of time.

[0101] In some embodiments, the first preset power threshold is optionally 4% to 6%.

[0102] By limiting the range of the first preset power threshold, the system avoids the first preset power threshold from being too large or too small, ensuring that the energy storage system can maximize its response to discharge commands without affecting the basic electricity consumption of the household, which is conducive to improving the user experience.

[0103] In one specific embodiment, the first preset power threshold is 4%.

[0104] In one specific embodiment, the first preset power threshold is 5%.

[0105] In one specific embodiment, the first preset power threshold is 6%.

[0106] In some embodiments, the multiple electrical loads may optionally include high-priority electrical loads, medium-priority electrical loads, and low-priority electrical loads. Users can flexibly set the priority sequence of the multiple electrical loads according to their own preferences and different time points. The priority sequence of each electrical load is not fixed.

[0107] like Figure 6 As shown, based on the remaining power and priority sequence, the system selects and controls the supply of power to one or more electrical loads, including: S2044, when the remaining power is less than the second preset power threshold, select to control the supply of power to high-priority power loads and medium-priority power loads; wherein, the second preset power threshold is greater than the first preset power threshold.

[0108] The purpose of this step is to compare the remaining power of the energy storage battery with a second preset power threshold to determine whether to stop supplying power to low-priority loads.

[0109] Determine if the remaining power is less than a second preset power threshold, and generate a second determination result. If the second determination result is yes (remaining power is less than the second preset power threshold), supply power to high-priority and medium-priority loads, and stop supplying power to low-priority loads. If the second determination result is no (remaining power is greater than or equal to the second preset power threshold), it indicates that the current remaining power is sufficient, and supply power to high-priority, medium-priority, and low-priority loads.

[0110] S2045, when the remaining power is less than the third preset power threshold, select to control the power supply to the high priority power load; wherein, the third preset power threshold is greater than the first preset power threshold and less than the second preset power threshold.

[0111] The purpose of this step is to compare the remaining power of the energy storage battery with a third preset power threshold to determine whether to stop supplying power to medium-priority loads.

[0112] Determine if the remaining power is less than a third preset power threshold and generate a third determination result. If the third determination result is yes (remaining power is less than the third preset power threshold), supply power to high-priority loads and stop supplying power to medium-priority and low-priority loads. If the third determination result is no (remaining power is greater than or equal to the third preset power threshold and less than the second preset power threshold), supply power to high-priority and medium-priority loads and stop supplying power to low-priority loads.

[0113] When responding to a discharge command, the energy storage system disconnects the connection between the lower priority loads and the smart distribution box in sequence as the remaining power gradually decreases. This is to prevent the lower priority loads from consuming too much power and to ensure maximum response to the discharge command.

[0114] In some embodiments, the second preset power threshold is optionally 75% to 85%.

[0115] By limiting the range of the second preset power threshold, the second preset power threshold is avoided from being too large or too small, so as to accurately grasp the timing of cutting off power supply to low-priority electrical loads, which is conducive to maximizing the response to discharge commands.

[0116] In one specific embodiment, the second preset power threshold is 75%.

[0117] In one specific embodiment, the second preset power threshold is 80%.

[0118] In one specific embodiment, the second preset power threshold is 85%.

[0119] In some embodiments, the third preset power threshold is optionally 45% to 55%.

[0120] By limiting the range of the third preset power threshold, the third preset power threshold is avoided from being too large or too small, so as to accurately grasp the timing of cutting off power supply to medium-priority loads, which is conducive to maximizing the response to discharge commands.

[0121] In one specific embodiment, the third preset power threshold is 45%.

[0122] In one specific embodiment, the third preset power threshold is 50%.

[0123] In one specific embodiment, the third preset power threshold is 55%.

[0124] In some embodiments, optionally, such as Figure 7 As shown, after S202 (obtaining the priority sequence of multiple electrical loads), the scheduling and control method for residential energy storage also includes: S203, according to the priority sequence of multiple electrical loads, marks the power supply circuit between the intelligent distribution box and each electrical load, so as to set the multiple power supply circuits as high priority power supply circuits, medium priority power supply circuits and low priority power supply circuits.

[0125] The purpose of this step is to set a priority sequence for multiple power supply circuits based on the priority sequence of multiple electrical loads. This allows for the subsequent steps to cut off or close the power supply circuits in response to dispatch commands, either to stop supplying power to the corresponding electrical load or to continue supplying power to the corresponding electrical load.

[0126] In multiple power supply circuits, each power supply circuit is equipped with a remote switching module. The remote switching module is used to communicate with the EMS module of the intelligent distribution box. The EMS module is used to control the remote switching module to close or open, so that the corresponding power supply circuit is in a closed or open state.

[0127] In some embodiments, optionally, such as Figure 8 As shown, when the remaining power is less than the second preset power threshold, the system selects to control the supply of power to high-priority and medium-priority power loads, including: S2046, when the remaining power is less than the second preset power threshold, control the low priority power supply circuit to be in the open state, and control the high priority power supply circuit and the medium priority power supply circuit to be in the closed state.

[0128] The purpose of this step is to compare the remaining power of the energy storage battery with a second preset power threshold to determine whether to stop supplying power to low-priority loads.

[0129] Determine if the remaining power is less than a second preset power threshold, and generate a second determination result. If the second determination result is yes (remaining power is less than the second preset power threshold), control the low-priority power supply circuit to be in the open state (stop supplying power to low-priority loads), and control the high-priority and medium-priority power supply circuits to be in the closed state (supplying power to high-priority and medium-priority loads). If the second determination result is no (remaining power is greater than or equal to the second preset power threshold), it indicates that the current remaining power is sufficient, and control the high-priority, medium-priority, and low-priority power supply circuits to be in the closed state (supplying power to high-priority, medium-priority, and low-priority loads).

[0130] In some embodiments, optionally, when the remaining power is less than a third preset power threshold, selecting to control the supply of power to high-priority power loads includes: S2047, when the remaining power is less than the third preset power threshold, control the low-priority power supply circuit and the medium-priority power supply circuit to be in the open state, and the high-priority power supply circuit to be in the closed state.

[0131] The purpose of this step is to compare the remaining power of the energy storage battery with a third preset power threshold to determine whether to stop supplying power to medium-priority loads.

[0132] Determine if the remaining power is less than a third preset power threshold and generate a third determination result. If the third determination result is yes (remaining power is less than the third preset power threshold), control the low-priority power supply circuit and the medium-priority power supply circuit to be in an open state (stop supplying power to medium-priority and low-priority loads), and control the high-priority power supply circuit to be in a closed state (supplying power to high-priority loads). If the third determination result is no (remaining power is greater than or equal to the third preset power threshold and less than the second preset power threshold), control the low-priority power supply circuit to be in an open state (stop supplying power to low-priority loads), and control the high-priority power supply circuit and the medium-priority power supply circuit to be in a closed state (supplying power to high-priority and medium-priority loads).

[0133] When responding to a discharge command, the energy storage system disconnects lower-priority power supply circuits as the remaining power gradually decreases. This disconnects lower-priority loads from the smart distribution box, preventing them from consuming excessive energy and ensuring maximum response to discharge commands.

[0134] In some embodiments, optionally, such as Figure 9 As shown, based on the controllable load power and priority sequence, the system selects and controls the supply of power to one or more electrical loads, including: S2062, when the power consumption of a high-priority electrical load is equal to the power of a controllable load, power is supplied to the high-priority electrical load.

[0135] S2064, when the sum of the power consumption of high-priority electrical loads and medium-priority electrical loads equals the controllable load power, power is supplied to the high-priority electrical loads and medium-priority electrical loads.

[0136] S2066, when the sum of the power consumption of high-priority electrical loads, medium-priority electrical loads and low-priority electrical loads equals the controllable load power, supplies power to high-priority electrical loads, medium-priority electrical loads and low-priority electrical loads.

[0137] It should be noted that the dispatchable power refers to the power that the energy storage system and the controllable electrical loads among multiple electrical loads can support the grid for dispatch.

[0138] In theory, the dispatchable power equals the sum of the energy storage system's charging power and the controllable load power. Here, controllable load power refers to the power consumption of controllable electrical loads. Controllable electrical loads are those that can be dispatched under the current scenario. The energy storage system's charging power refers to the power supplied by the grid solely to the energy storage battery.

[0139] When responding to a charging command, power is first supplied to loads with higher priority, then to loads with lower priority, until the sum of the power consumption of the loads receiving power equals the power of the controllable load.

[0140] In response to charging commands from the VPP scheduling cloud platform, controllable power loads are identified among multiple power loads with different priority sequences. This allows both the energy storage system itself and the controllable power loads to be included in the dispatchable range, which is beneficial for expanding the dispatchable capacity. The energy storage system can achieve maximum response to charging commands.

[0141] In one embodiment of the present invention, such as Figure 3 As shown, the VPP scheduling cloud platform 500 is used to communicate with the energy storage system 300, and the energy storage system 300 is used to connect with multiple electrical loads 430.

[0142] Optionally, the VPP dispatch cloud platform 500 is used to send discharge or charging commands to the EMS module 120 of the smart distribution box 100 of the energy storage system 300. The EMS module 120 is used to receive discharge or charging commands.

[0143] like Figure 10 As shown, the scheduling and control methods for residential energy storage include: S302, a discharge command is sent to the energy storage system so that the energy storage system determines whether to respond to the discharge command based on the remaining charge of the energy storage battery; if it responds to the discharge command, it selects to control the supply of power to one or more electrical loads according to the remaining charge and the priority sequence of multiple electrical loads.

[0144] The VPP dispatch cloud platform sends discharge commands to the energy storage system. The energy storage system receives the discharge commands from the VPP dispatch cloud platform and determines whether to respond to the discharge command based on the remaining power of the energy storage battery. Specifically, the EMS module of the smart distribution box determines whether to respond to the discharge command based on the remaining power of the energy storage battery.

[0145] Optionally, the remaining power is compared with a preset power threshold to determine whether to respond to a discharge command, and whether to supply power to medium-priority and low-priority power loads when responding to a discharge command.

[0146] In some embodiments, optionally, a discharge command is responded to when the remaining power is greater than or equal to a first preset power threshold; and no discharge command is responded to when the remaining power is less than the first preset power threshold.

[0147] The first preset power threshold is the lower limit for power supply protection of the energy storage system. The remaining power is compared with this lower limit to determine whether to respond to a discharge command, ensuring that the energy storage system has sufficient power available for high-priority loads. This design maximizes the response to discharge commands without affecting basic household electricity consumption, thus improving the user experience.

[0148] In some embodiments, optionally, when the remaining power is less than a second preset power threshold, power is supplied to high-priority power loads and medium-priority power loads; when the remaining power is less than a third preset power threshold, power is supplied to high-priority power loads.

[0149] It should be noted that the second preset battery threshold is greater than the first preset battery threshold. The third preset battery threshold is greater than the first preset battery threshold, but less than the second preset battery threshold.

[0150] S304 generates charging commands based on the power that can be dispatched, where the dispatchable power is equal to the sum of the charging power of the energy storage system and the controllable load power; it sends charging commands to the energy storage system so that the energy storage system responds to the charging commands and selects to control the supply of power to one or more electrical loads according to the controllable load power and priority sequence.

[0151] The VPP dispatch cloud platform receives information from the energy storage system regarding the available dispatchable power. Based on the available dispatchable power, the VPP dispatch cloud platform generates charging commands and sends these commands to the energy storage system.

[0152] It should be noted that the dispatchable power refers to the power that the energy storage system and the controllable electrical loads among multiple electrical loads can support the grid for dispatch.

[0153] In theory, the dispatchable power equals the sum of the energy storage system's charging power and the controllable load power. Here, controllable load power refers to the power consumption of controllable electrical loads. Controllable electrical loads are those that can be dispatched under the current scenario. The energy storage system's charging power refers to the power supplied by the grid solely to the energy storage battery.

[0154] When responding to a charging command, power is first supplied to loads with higher priority, then to loads with lower priority, until the sum of the power consumption of the loads receiving power equals the power of the controllable load.

[0155] This invention aims to provide a scheduling and control method for residential energy storage. The energy storage system can respond to scheduling commands (discharge commands or charging commands) from a VPP scheduling cloud platform based on the priority sequence of multiple electrical loads. In response to a discharge command from the VPP scheduling cloud platform, as the remaining power gradually decreases, the energy storage system can sequentially disconnect the connection between lower-priority electrical loads and the smart distribution box to avoid these lower-priority loads consuming excessive energy. Therefore, the energy storage system can maximize its response to discharge commands. In response to a charging command from the VPP scheduling cloud platform, controllable electrical loads are identified from multiple electrical loads with different priority sequences, bringing both the energy storage system itself and the controllable electrical loads within the dispatchable range. This facilitates expanding the dispatchable capacity, and the energy storage system can maximize its response to charging commands.

[0156] In summary, when responding to dispatch commands, energy storage systems can take into account both the energy storage batteries and multiple electrical loads, which helps to expand the dispatchable capacity and respond to VPP dispatch requirements to the greatest extent, thereby maximizing the response to dispatch commands.

[0157] The advantages of the residential energy storage scheduling and control method of the present invention are as follows: Firstly, improve VPP adjustable capacity: With the same battery (energy storage battery) capacity, by incorporating interruptible loads (electrical loads) into the scheduling, the overall responsive power is increased by an average of 25% to 40%.

[0158] Secondly, it ensures power supply to users' critical loads: when the remaining power of the energy storage battery gradually decreases until it approaches the lower limit threshold for power supply, the energy storage system automatically disconnects the connection with the lower priority loads according to the preset priority sequence, so as to ensure that the high priority loads are uninterrupted, which is conducive to improving user experience and safety performance.

[0159] Thirdly, reducing the number of cycles of energy storage batteries and extending their lifespan: By sequentially disconnecting the connection to electrical loads with lower priority, the frequency of deep discharge of energy storage batteries can be reduced, which is expected to reduce the number of cycles by 15% to 20% and extend the lifespan of energy storage batteries by 12 to 18 months.

[0160] Fourthly, it reduces communication bandwidth and cloud computing load: The intelligent distribution box can obtain the priority sequence of multiple power loads and respond to scheduling commands based on the priority sequence. The priority sequence of multiple power loads can be directly determined in the local firmware, and the cloud only needs to send a 1-byte queue control word to complete the scheduling. Compared with the traditional "per-device command" mode, it helps to save more than 80% of the downlink data volume.

[0161] In one embodiment of the present invention, such as Figure 2 As shown, the intelligent distribution box 100 includes an EMS module 120. The EMS module 120 is used to execute the steps of the household energy storage scheduling and control method in any of the above embodiments. The intelligent distribution box 100 has the beneficial effects of any of the above embodiments, which will not be described in detail here.

[0162] In one embodiment of the present invention, such as Figure 1 and Figure 3 As shown, the energy storage system 300 includes an energy storage battery 320, an energy storage inverter 340, and the smart distribution box 100 in the above embodiments. The energy storage battery 320 is used to store or release electrical energy. The energy storage inverter 340 is connected to the energy storage battery 320 and is used to connect to the photovoltaic panel 410. The smart distribution box 100 is connected to the energy storage inverter 340, and is used to connect to the power grid 420 and to multiple electrical loads 430. The smart distribution box 100 is used to execute the steps of the household energy storage scheduling and control method in any of the above embodiments.

[0163] The energy storage system 300 has the beneficial effects of any of the above embodiments, which will not be repeated here.

[0164] In one embodiment of the present invention, such as Figure 11 As shown, the VPP scheduling cloud platform 500 includes a memory 510 and a processor 520. The memory 510 stores programs or instructions that can run on the processor 520. When the processor 520 executes the programs or instructions, it implements the steps of the user energy storage scheduling and control method in the above embodiments. The VPP scheduling cloud platform 500 has the beneficial effects of the above embodiments, which will not be elaborated further here.

[0165] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0166] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0167] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0168] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for scheduling and controlling household energy storage, characterized in that, The application is applied to an energy storage system, which is connected with a VPP scheduling cloud platform, and comprises a connected energy storage battery and a smart distribution box connected with a plurality of power consumption loads; The scheduling and control method comprises: obtaining a priority sequence of the plurality of power consumption loads; determining whether to respond to a discharge instruction from the VPP scheduling cloud platform based on the remaining capacity of the energy storage battery; in the case of responding to the discharge instruction, selecting to control power supply to one or more of the power consumption loads according to the remaining capacity and the priority sequence; in response to a charging instruction from the VPP scheduling cloud platform based on a supportable scheduling power equal to the sum of the charging power of the energy storage system and the controllable load power, selecting to control power supply to one or more of the power consumption loads according to the controllable load power and the priority sequence.

2. The method of claim 1, wherein, The determination of whether to respond to the discharge instruction from the VPP scheduling cloud platform based on the remaining capacity of the energy storage battery comprises: determining whether the remaining capacity of the energy storage battery is greater than or equal to a first preset capacity threshold; in the case that the remaining capacity is greater than or equal to the first preset capacity threshold, responding to the discharge instruction from the VPP scheduling cloud platform; in the case that the remaining capacity is less than the first preset capacity threshold, not responding to the discharge instruction from the VPP scheduling cloud platform.

3. The method of claim 2, wherein, The plurality of power consumption loads comprises high-priority power consumption loads, medium-priority power consumption loads and low-priority power consumption loads. The selection of the control of the power supply to one or more of the power consumption loads according to the remaining capacity and the priority sequence comprises: in the case that the remaining capacity is less than a second preset capacity threshold, selecting to control power supply to the high-priority power consumption loads and the medium-priority power consumption loads; wherein the second preset capacity threshold is greater than the first preset capacity threshold; in the case that the remaining capacity is less than a third preset capacity threshold, selecting to control power supply to the high-priority power consumption loads; wherein the third preset capacity threshold is greater than the first preset capacity threshold, and the third preset capacity threshold is less than the second preset capacity threshold.

4. The method of claim 3, wherein, After obtaining the priority sequence of the plurality of power consumption loads, the scheduling and control method further comprises: According to the priority sequence of the plurality of power consumption loads, marking the power supply circuits between the smart distribution box and each of the power consumption loads to set a plurality of the power supply circuits as high-priority power supply circuits, medium-priority power supply circuits and low-priority power supply circuits.

5. The method of claim 4, wherein, The selection of the control of the power supply to the high-priority power consumption loads and the medium-priority power consumption loads in the case that the remaining capacity is less than the second preset capacity threshold comprises: in the case that the remaining capacity is less than the second preset capacity threshold, controlling the low-priority power supply circuits to be in an open state, and the high-priority power supply circuits and the medium-priority power supply circuits to be in a closed state; The selecting and controlling to supply power to the high-priority power consumption load in the case that the residual power is less than a third preset power threshold comprises: In the case that the residual power is less than the third preset power threshold, the low-priority power supply circuit and the medium-priority power supply circuit are controlled to be in an open state, and the high-priority power supply circuit is controlled to be in a closed state.

6. The method for scheduling and controlling household energy storage according to any one of claims 3 to 5, characterized in that, The selecting and controlling to supply power to one or more of the power consumption loads according to the controllable load power and the priority sequence comprises: In the case that the power consumption of the high-priority power consumption load is equal to the controllable load power, power is supplied to the high-priority power consumption load; In the case that the sum of the power consumptions of the high-priority power consumption load and the medium-priority power consumption load is equal to the controllable load power, power is supplied to the high-priority power consumption load and the medium-priority power consumption load; In the case that the sum of the power consumptions of the high-priority power consumption load, the medium-priority power consumption load and the low-priority power consumption load is equal to the controllable load power, power is supplied to the high-priority power consumption load, the medium-priority power consumption load and the low-priority power consumption load.

7. A method for scheduling and controlling home energy storage, characterized in that, The VPP scheduling cloud platform is configured to be connected with a storage system, and the storage system is configured to be connected with a plurality of power consumption loads. The scheduling and control method comprises: sending a discharging instruction to the storage system, so that the storage system determines whether to respond to the discharging instruction based on a residual power of a storage battery; in the case of responding to the discharging instruction, selecting and controlling to supply power to one or more of the power consumption loads according to the residual power and a priority sequence of the plurality of power consumption loads; generating a charging instruction based on a supportable scheduling power, the supportable scheduling power being equal to a sum of a charging power of the storage system and a controllable load power; and sending the charging instruction to the storage system, so that the storage system responds to the charging instruction, and selects and controls to supply power to one or more of the power consumption loads according to the controllable load power and the priority sequence.

8. A smart distribution box characterized in that, The EMS module is configured to perform the steps of the scheduling and control method of the household storage energy as claimed in any one of claims 1 to 6. The storage battery is configured to store or release power.

9. An energy storage system characterized by, The storage inverter is configured to be connected with a photovoltaic panel. The intelligent distribution box as claimed in claim 8 is configured to be connected with the storage inverter, connected with a power grid, and connected with a plurality of power consumption loads. The memory and the processor, wherein the memory has a program or instructions stored thereon and executable on the processor, and the processor implements the steps of the scheduling and control method of the household storage energy as claimed in claim 7 when executing the program or the instructions. The memory and the processor, wherein the memory has a program or instructions stored thereon and executable on the processor, and the processor implements the steps of the scheduling and control method of the household storage energy as claimed in claim 7 when executing the program or the instructions. 10.A VPP scheduling cloud platform, characterized in that, ​ ​

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