Power distribution gateway, power distribution gateway system, and power distribution gateway control method

Abstract

A power distribution gateway, a power distribution gateway system, and a power distribution gateway control method. A power distribution gateway (100) comprises a processor (10), an energy management module (20), and an access management module (30). The processor (10) is electrically connected to the energy management module (20) and the access management module (30). The energy management module (20) is electrically connected to a power grid (200), an external power supply (300) and a load (400). The access management module (30) is electrically connected to the load (400). The power distribution gateway (100) can acquire various parameters of the power grid (200), the external power supply (300) and the load (400), and on the basis of first operation information of the power grid (200) and second operation information of the external power supply (300), control different power supplies to supply power to the load (400).

Description

Power distribution gateway, power distribution gateway system, and power distribution gateway control method

[0001] Priority information

[0002] This application claims priority and benefits of patent application No. 202311072971.2 filed with the State Intellectual Property Office of China on August 22, 2023, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of power distribution technology, and more specifically, to a power distribution gateway, a power distribution gateway system, and a control method for a power distribution gateway. Background Art

[0004] Energy storage devices utilize power generation (e.g., photovoltaics) or direct access to the utility grid to charge and store energy in batteries, allowing them to supply power when needed. Current energy storage devices can only supply power to loads and store excess energy in the storage battery. They lack the ability to intelligently manage loads or control external power sources and the grid to deliver power to loads to save energy.

[0005] Summary of the Invention

[0006] Embodiments of the present application provide a power distribution gateway, a power distribution gateway system, and a control method for the power distribution gateway.

[0007] The power distribution gateway of the embodiment of the present application includes a processor, an energy management module and an access management module. The processor is electrically connected to the energy management module and the access management module, the energy management module is electrically connected to the power grid, the external power supply and the load, and the access management module is electrically connected to the load. Among them: the energy management module is used to obtain parameter information of the power grid, obtain first operating information of the power grid and second operating information of the external power supply. The access management module is used to obtain load data of the load and environmental data of the environment in which the load is located, and turn on or off the load according to the load data and the environmental data. The processor is also used to determine the grid connection / off-grid information between the external power supply and the power grid based on the parameter information, to control the energy management module to manage the working mode of the external power supply and the power grid based on the grid connection / off-grid information, and to control the energy management module to manage the power supply of the power grid and the charging and discharging of the external power supply based on the first operating information and the second operating information. The processor is also used to control the access management module to turn on or off the load based on the load data and the environmental data.

[0008] In some embodiments, the power distribution gateway further includes an input / output module electrically connected to the processor, configured to receive external input signals to generate control instructions. The processor is further configured to respond to the control instructions and, based on the first and second operating information, control the energy management module to manage the power supply of the power grid and the charging and discharging of the external power supply, and to control the access management module to turn on or off the load based on the load data and the environmental data.

[0009] In some embodiments, the power distribution gateway further includes an input / output module electrically connected to the access management module, configured to receive external input signals to generate control instructions. The access management module is further configured to respond to the control instructions and turn the load on or off based on the load data and the environmental data.

[0010] In some embodiments, the input-output module is a communication module, and the communication module is also used to transmit at least one of the parameter information, the first operation information, the second operation information, the grid-connected / off-grid information, the load data and the environmental data from the processor to the terminal and / or the cloud.

[0011] In some embodiments, the input and output module is a display module, and the display module is also used to display at least one of the parameter information, the first operation information, the second operation information, the grid-connected / off-grid information, the load data and the environmental data from the processor.

[0012] In some embodiments, the power distribution gateway also includes a power module, which is electrically connected to at least one of the processor, the energy management module, the access management module and the input and output module, and the power module is used to supply power to at least one of the processor, the energy management module, the access management module and the input and output module.

[0013] In some embodiments, the external power supply includes a power generation source and an energy storage source. The load data includes power consumption of each load over the previous N days. The second operating information includes the power generation of the power generation source on sunny days over the previous N days, the power generation of the power generation source on rainy days over the previous N days, and the current remaining power (BP) of the energy storage source. The processor is further configured to obtain average power consumption values ​​LP1 to LPN for each load and an average power consumption value LAP for the total load based on the power consumption values ​​of each load over the previous N days, obtain an average power consumption value PPV1 for each load based on the power generation of the power generation source on sunny days over the previous N days, and obtain an average power consumption value PPV2 for each load based on the power generation of the power generation source on rainy days over the previous N days. The processor is further configured to estimate the power supply for the day based on current weather conditions and compare the average power consumption value LAP for the total load with the estimated power supply for the day. If the estimated power supply for the day is less than the average power consumption value LAP for the total load, the processor is further configured to send a prompt and / or suggestion to the input / output module.

[0014] In some embodiments, when the current weather condition is sunny, the estimated power supply for the day is the sum of the average power generation amount (PPV1) of the power generation source on sunny days and the current remaining power (BP) of the energy storage source. When the current weather condition is rainy, the estimated power supply for the day is the sum of the average power generation amount (PPV2) of the power generation source on rainy days and the current remaining power (BP) of the energy storage source.

[0015] In some embodiments, the recommendation information includes at least one of the following information: a recommendation to shut down at least one load and provide options for the load to be shut down; a recommendation to control the external power supply or the power grid to supply power to the load based on fluctuations in the electricity price of the power grid; a recommendation to prioritize the use of the external power supply to supply power to the load, and when the external power supply is exhausted, switch to the power grid to supply power to the load; and a recommendation to increase the power generation power of the power generation power supply and / or the maximum storage capacity of the energy storage power supply.

[0016] In certain embodiments, when it is selected to shut down any load, the access management module is used to control the shutdown of any load. When it is selected to control the external power supply or the power grid to supply power to the load based on fluctuations in the power price of the power grid, the energy management module is used to control the external power supply to supply power to the load when the power price of the power grid is high, and to control the power grid to supply power to the load when the power price of the power grid is low. When it is selected to preferentially use the external power supply to supply power to the load, the energy management module is used to control the external power supply to supply power to the load, and when the external power supply is exhausted, the energy management module is further used to control the power grid to supply power to the load.

[0017] In some embodiments, the first operating information includes the number X of power outage days and the corresponding power outage times t of the power grid under various weather conditions in the previous N days; the processor is further used to obtain the power outage probability η and power outage period of the power grid under various weather conditions based on the number X of power outage days and the corresponding power outage times t under various weather conditions in the previous N days; the processor is further used to estimate the power outage probability and power outage period of the day based on the current weather conditions, the power outage probability η and power outage period under various weather conditions; when the estimated power outage probability is greater than the warning probability value preset in the processor, the processor is further used to send prompt information and / or suggestion information to the input and output module.

[0018] In some embodiments, the recommendation information includes a recommendation that the load be powered solely by the power grid before a predicted power outage. If the load is powered solely by the power grid before a predicted power outage, the energy management module is further configured to control the power grid to supply power to the load and to disconnect the external power supply from the load.

[0019] In certain embodiments, the external power supply includes a power generation power supply and an energy storage power supply. The access management module is used to obtain the current environmental data, and the second operating information includes preset environmental data that the power generation power supply needs to meet for power generation. When the current environmental data is within the range of the preset environmental data that the power generation power supply needs to meet for power generation, the energy management module is used to control the power generation power supply to at least supply power to the load. When the current environmental data exceeds the range of the preset environmental data that the power generation power supply needs to meet for power generation, the energy management module is used to control the energy storage power supply to supply power to the load.

[0020] In some embodiments, the power generation source is a photovoltaic power generation source. The current environmental data includes current external light intensity. The preset environmental data required for the power generation source to generate electricity includes a preset light intensity. When the current external light intensity exceeds the preset light intensity, the energy management module is configured to control the power generation source to supply power to the load. When the current external light intensity is lower than the preset light intensity, the energy management module is configured to control the energy storage source to supply power to the load.

[0021] In some embodiments, the access management module is configured to obtain the current environmental data, wherein the load data includes the load usage time in the previous N days. The processor is configured to obtain the average load usage time based on the load usage time in the previous N days. The processor is configured to obtain the estimated load usage time for the current day based on the current environmental data and the average load usage time.

[0022] In some embodiments, the environmental data includes indoor temperature and outdoor temperature. The access management module is configured to obtain the current indoor temperature and the current outdoor temperature, and the processor is configured to obtain the current indoor and outdoor temperature difference based on the current indoor temperature and the current outdoor temperature. The average usage time of the load includes the average daily start-up time of the load, and the processor is further configured to obtain the preset time for the load to be turned on in advance on the day based on the current indoor and outdoor temperature difference and the average daily start-up time of the load.

[0023] In some embodiments, when the current temperature difference between indoor and outdoor is greater than a preset temperature difference, the access management module is used to turn on the load in advance of a first preset time; when the current temperature difference between indoor and outdoor is less than a preset temperature difference, the access management module is used to turn on the load in advance of a second preset time; the first preset time is greater than the second preset time.

[0024] In some embodiments, the load data includes the power consumption of each load in the previous N days, and the processor is used to obtain the expected power consumption of each load based on the power consumption of each load in the previous N days; the access management module is used to obtain the power consumption of each load on the day; the processor is used to obtain the operating status of each load on the day based on the expected power consumption of each load and the power consumption of each load on the day; when the power consumption of each load on the day is higher than the expected power consumption of each load, the processor is also used to send prompt information and / or suggestion information to the input and output module.

[0025] The power distribution gateway system of the embodiment of the present application includes the power distribution gateway, external power supply, power grid and load described in any of the above embodiments, and the external power supply, the power grid and the load are all electrically connected to the power distribution gateway.

[0026] The control method of the distribution gateway of the embodiment of the present application includes: obtaining parameter information and first operating information of the power grid, and second operating information of the external power supply; determining the grid-connected / off-grid information between the external power supply and the power grid based on the parameter information; controlling the energy management module to manage the working mode of the external power supply and the power grid based on the grid-connected / off-grid information; controlling the energy management module of the distribution gateway to manage the power supply of the power grid and the charging and discharging of the external power supply based on the first operating information and the second operating information; obtaining load data of the load and environmental data of the environment in which the load is located; and controlling the access management module of the distribution gateway to turn on or off the load based on the load data and the environmental data.

[0027] In the power distribution gateway, power distribution gateway system, and power distribution gateway control method of the present application, the power distribution gateway can obtain various parameters of the power grid, external power supply, and load, and control different power supplies to supply power to the load based on first power grid operating information and second external power supply operating information, thereby saving power on the power grid. Based on the load data and environmental data of the load, the power distribution gateway can also control the operation of different loads to make the load operation more intelligent and save energy.

[0028] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] FIG1 is a schematic diagram of the structure of a power distribution gateway system and a power distribution gateway according to certain embodiments of the present application;

[0031] FIG2 is a schematic diagram of the structure of a power distribution gateway system and a power distribution gateway according to certain embodiments of the present application;

[0032] FIG3 is a schematic diagram of the structure of a power distribution gateway system and a power distribution gateway according to certain embodiments of the present application;

[0033] FIG4 is a schematic diagram of the structure of a power distribution gateway system and a power distribution gateway according to certain embodiments of the present application;

[0034] FIG5 is a flow chart of a control method for a power distribution gateway according to certain embodiments of the present application;

[0035] FIG6 is a flow chart of a control method for a power distribution gateway according to certain embodiments of the present application;

[0036] FIG7 is a flow chart of a control method for a power distribution gateway according to certain embodiments of the present application.

[0037] Explanation of main component symbols: 100, power distribution gateway; 200, power grid; 300, external power supply; 301, power generation power supply; 303, energy storage power supply; 400, load; 500, sensor; 10, processor; 20, energy management module; 30, access management module; 40, input and output module; 41, communication module; 43, display module; 50, power module. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and should not be understood as limiting the embodiments of the present application.

[0039] In the description of the present application, it should be understood that the terms "thickness", "upper", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. In an example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements.

[0041] Please refer to Figures 1 and 2. The power distribution gateway 100 of the present application includes a processor 10, an energy management module 20 and an access management module 30. The processor 10 is electrically connected to the energy management module 20 and the access management module 30. The energy management module 20 is electrically connected to the power grid 200, the external power supply 300 and the load 400. The access management module 30 is electrically connected to the load 400. Among them: the energy management module 20 is used to obtain parameter information of the power grid 200, obtain first operating information of the power grid 200 and second operating information of the external power supply 300. The access management module 30 is used to obtain data of the load 400 and environmental data of the environment in which the load 400 is located, and to turn on or off the load 400 according to the load data and environmental data. The processor 10 is further configured to determine on-grid / off-grid information between the external power source 300 and the power grid 200 based on the parameter information, control the energy management module 20 to manage the operating modes of the external power source 300 and the power grid 200 based on the on-grid / off-grid information, and control the energy management module 20 to manage the power supply of the power grid 200 and the charging and discharging of the external power source 300 based on the first operating information and the second operating information. The processor 10 is further configured to control the access management module 30 to turn on or off the load 400 based on the load data and the environmental data.

[0042] The load 400 is a structure or device capable of consuming electrical energy. It is electrically connected to the power grid 200 and the external power source 300 via the power distribution gateway 100. The access management module 30 can control the on / off operation of the load 400. The external power source 300 includes a generator 301 and an energy storage 303. The generator 301 can be a wind or solar power source that generates electricity using clean energy such as wind or solar power, or a generator that generates electricity using fuels such as gasoline or diesel. The energy storage 303 can store electrical energy and supply it to the load 400. The stored energy in the energy storage 303 can originate from either the power grid 200 or the generator 301. Parameter information includes information such as line parameters of the power grid 200 and the access status of the power grid 200. Line parameters of the power grid 200 include, but are not limited to, frequency and voltage. The access status includes, but is not limited to, the electrical connection between the power grid 200 and the power distribution gateway 100, and between the power grid 200 and the external power source 300.

[0043] For example, the energy management module 20 can obtain parameter information indicating whether the power grid 200 is electrically connected to the external power source 300. When both the power generation source 301 and the energy storage source 303 are connected to the power grid 200, the electrical energy generated by the power generation source 301 can be transmitted to the power grid 200, supplied to the energy storage source 303 for storage, and / or directly supplied to the load 400. The power grid 200 can supply power to the energy storage source 303 and the load 400, enabling the energy storage source 303 to store electrical energy and enabling the load 400 to operate normally. The power grid 200 can also provide voltage to the energy storage source 303 to maintain a constant voltage at the load 400. In this case, both the power generation source 301 and the energy storage source 303 can supply current to the load 400. When both the power generation source 301 and the energy storage source 303 are disconnected from the power grid 200, the power generation source 301 can generate electrical energy and supply power to the energy storage source 303 and the load 400. The energy storage power supply 303 can also supply power to the load 400 . In this case, the energy storage power supply 303 can provide a stable voltage to the load 400 .

[0044] First operating information is the operating information generated by the power grid 200 during the process of transmitting power to the external power source 300 and the load 400, such as the power consumption of the power grid 200, fluctuations in the power price of the power grid 200, and / or power outages of the power grid 200. Second operating information is the operating information generated by the external power source 300 during the process of generating and transmitting power, such as the power generation (power) of the power generation source 301, the remaining power of the energy storage source 303, and / or the total power supply of the energy storage source 303. Load data is data generated by the load 400 during operation, such as the power consumption of each load 400, the operating time period of each load 400, and / or the continuous operating time of each load 400. Environmental data is data collected by the external sensor 500 and capable of being transmitted to the power distribution gateway 100, such as weather, light intensity, temperature, and / or humidity.

[0045] In the power distribution gateway 100 of the present application, the power distribution gateway 100 can obtain various parameters of the power grid 200, the external power source 300, and the load 400, and control different power sources to supply power to the load 400 based on the first operating information of the power grid 200 and the second operating information of the external power source 300, thereby realizing the function of saving the power of the power grid 200. Based on the load data and environmental data of the load 400, the power distribution gateway 100 can also control the operating conditions of different loads 400 to make the operation of the load 400 more intelligent and save power.

[0046] The power distribution gateway 100 is further described below with reference to the accompanying drawings.

[0047] Referring to Figures 1 and 2, in certain embodiments, the processor 10 can obtain the operating status of the externally connected power grid 200, external power supply 300, and load 400 based on acquired parameter information, first operating information, second operating information, and load data. The processor 10 can also obtain the environmental conditions of the external power supply 300 and load 400 based on acquired environmental data. After obtaining the operating and environmental conditions, the processor 10 can control various modules within the power distribution gateway 100 based on the different operating and environmental conditions to manage the power supply and the load 400. The energy management module 20 can send the acquired parameter information, first operating information, and / or second operating information to the processor 10, receive control commands from the processor 10 and external users, and control the power supply process of the power grid 200 and external power supply 300 in accordance with the control commands. The access management module 30 can connect to the external load 400 and sensor 500 and send the acquired load data and / or environmental data to the processor 10. The access management module 30 can also receive control commands from the processor 10 and external users, and control the on and off of the load 400 according to the control commands.

[0048] Specifically, in some embodiments, the processor 10 can control the energy management module 20 to manage the working mode of the power grid 200 and the external power supply 300. In order to ensure that the load 400 connected to the power distribution gateway 100 is always powered on, the external power supply 300 should always be electrically connected to the power distribution gateway 100. At this time, the energy management module 20 can obtain the parameter data of the external power supply 300. When the power grid 200 is connected to the power distribution gateway 100, the energy management module 20 can read the relevant parameter information of the power grid 200, such as the current and voltage in the power grid 200, and transmit the data to the processor 10. After receiving the relevant parameter information of the power grid 200, the processor 10 can determine that the power grid 200 is connected to the power distribution gateway 100 at this time, and the power grid 200 and the external power supply 300 are in a grid-connected state. When the power grid 200 and the external power source 300 are in a grid-connected state, the processor 10 can intelligently control the power supply mode of the power grid 200 and the external power source 300 to the load 400, as well as the power supply mode between the power grid 200 and the external power source 300, based on the control instructions issued by the user or the first operating information, second operating information, load data and / or environmental data obtained in the power distribution gateway 100. When the power grid 200 is not connected to the power distribution gateway 100, the energy management module 20 cannot read the relevant parameter information of the power grid 200, so the processor 10 can determine that the external power source 300 is in an off-grid state at this time. When the external power source 300 is in an off-grid state, the processor 10 can intelligently control the power supply mode of the external power source 300 to the load 400, as well as the power supply mode between the power generation source 301 and the energy storage source 303, based on the control instructions issued by the user or the second operating information, load data and / or environmental data obtained in the power distribution gateway 100.

[0049] More specifically, in some embodiments, the processor 10 can also control the energy management module 20 to manage the power supply method from the power grid 200 to the load 400. When the power grid 200 is connected to the power distribution gateway 100, the energy management module 20 can obtain first operating information generated during the operation of the power grid 200. Based on changes in the first operating information, the processor 10 can formulate different control strategies to control the energy management module 20 to manage the power supply process from the power grid 200 to the load 400 in different ways.

[0050] For example, when the power grid 200, the power generation source 301, and the energy storage source 303 are all capable of supplying power to the load 400, in order to maximize the use of clean energy while avoiding the use of power from the power grid 200 to save electricity costs, the processor 10 controls the energy management module 20 to prioritize the use of the power generation source 301 to supply power to the load 400. If the power generated by the power generation source 301 not only meets the needs of the load 400 but also has a surplus, the excess power generated by the power generation source 301 can be provided to the energy storage source 303 for storage. If the amount of power stored in the energy storage source 303 is at its maximum, the excess power generated by the power generation source 301 can also be provided to the power grid 200 to generate additional revenue or offset the user's consumption of power from the power grid 200.

[0051] If external environmental changes cause the power generation source 301 to be unable to generate power, the processor 10 can control the energy management module 20 to prioritize the use of power from the energy storage source 303 to supply power to the load 400, thereby saving electricity costs. The processor 10 can also control the energy management module 20 to prioritize the use of power from the power grid 200 to supply power to the load 400, thereby maintaining as much power as possible in the energy storage source 303 and avoiding a failure to supply power to the load 400 in an emergency.

[0052] When only the power generation source 301 and the energy storage source 303 are providing power to the load 400, the processor 10 can control the energy management module 20 to preferentially use the power generated by the power generation source 301 to supply power to the load 400. When both the grid 200 and the power generation source 301 are capable of supplying power to the load 400, the processor 10 will control the energy management module 20 to preferentially use the power generation source 301 to supply power to the load 400 in order to maximize the use of clean energy.

[0053] More specifically, in certain embodiments, the processor 10 can also control the charging and discharging methods of the external power supply 300. The charging and discharging methods of the external power supply 300 include, but are not limited to, the power generation source 301 discharging to the load 400, the power generation source 301 discharging to the energy storage source 303, and the energy storage source 303 discharging to the load 400. When the external power supply 300 is connected to the power distribution gateway 100, the energy management module 20 can obtain the second operating information generated during the operation of the external power supply 300. Based on the changes in the second operating information, different control strategies can be formulated within the processor 10 to control the energy management module 20 to manage the power supply process of the external power supply 300 to the load 400 in different ways.

[0054] For example, the processor 10 can control the energy management module 20 to directly provide the electric energy generated by the power generation source 301 to the load 400, at which point the power generation source 301 is in a discharging state. If the electric energy generated by the power generation source 301 not only meets the needs of the load 400 but also has a surplus, the excess electric energy generated by the power generation source 301 can be provided to the energy storage power supply 303 for storage, at which point the energy storage power supply 303 is in a charging state. If the electric energy generated by the power generation source 301 is insufficient to supply the load 400, the processor 10 can control the energy management module 20 to use the energy storage power supply 303 to supply power to the load 400, at which point the energy storage power supply 303 is in a discharging state.

[0055] More specifically, in certain embodiments, the processor 10 can also control the access management module 30 to manage the on / off switching of the load 400. When the access management module 30 is connected to the load 400 and the sensor 500, the access management module 30 can feed back the acquired load data and environmental data to the processor 10. The processor 10 can formulate different control strategies based on the current load data and environmental data to control the access management module 30 to manage the on / off switching of the load 400 in different ways. For example, when the indoor temperature is high, the processor 10 can obtain temperature data from the environmental data and operating data of a load 400 (such as an air conditioner or fan) that can lower the room temperature. When the load 400 is off, the processor 10 can control the access management module 30 to turn on the load 400 to lower the indoor temperature. When the load 400 is already on, the processor 10 can control the access management module 30 to adjust the operating power of the load 400 to lower the indoor temperature.

[0056] Please refer to Figures 2 and 3. In some embodiments, the power distribution gateway 100 also includes an input and output module 40, which is a part that can send information to the outside and receive control instructions. The input and output module 40 is electrically connected to the processor 10. When the input and output module 40 receives an input signal from the outside, the input and output module 40 can read the input signal as a control instruction. In some embodiments, the processor 10 can respond to the control instruction sent to the processor 10 by the input and output module 40, and control the energy management module 20 to manage the power supply of the power grid 200 and the charging and discharging of the external power supply 300 according to the first operating information and the second operating information, and control the access management module 30 to turn on or off the load 400 according to the load data and environmental data. In other embodiments, the access management module 30 can directly respond to the control instruction and turn on or off the load 400 according to the load data and environmental data.

[0057] Specifically, in some embodiments, the input / output module 40 may be a communication module 41, which is capable of connecting to a terminal and / or the cloud and receiving input signals from the terminal and / or the cloud to generate control instructions. In one example, the communication module 41 can also be electrically connected to the processor 10 so that the control instructions can be transmitted to the processor 10. The processor 10 can control the energy management module 20, the access management module 30, and the communication module 41 to perform different functions based on the content of the control instructions. For example, when a user issues an instruction to query the operating status of the power distribution gateway 100, the processor 10 can control the communication module 41 to transmit at least one of parameter information, first operating information, second operating information, grid connection / off-grid information, load data, and environmental data from the processor 10 to the terminal and / or the cloud. In another example, the communication module 41 can also be electrically connected to the access management module 30. In this case, the communication module 41 can directly transmit the control instructions to the access management module 30, causing the access management module 30 to control the load 400 according to the control instructions.

[0058] More specifically, in some other embodiments, the input / output module 40 can also be a display module 43, and the user can input control instructions through the display module 43. In one example, the display module 43 can be connected to the processor 10 to transmit the control instructions input by the user to the processor 10, and the processor 10 can control the energy management module 20, the access management module 30 and the display module 43 to perform different functions according to the content of the control instructions. For example: when the user issues an instruction to query the operating status of the power distribution gateway 100, the processor 10 can control the display module 43 to display at least one of the parameter information, first operating information, second operating information, grid-connected / off-grid information, load data and environmental data from the processor 10. In another example, the display module 43 can also be electrically connected to the access management module 30. In this case, the display module 43 can directly transmit the control instructions to the access management module 30 and enable the access management module 30 to control the load 400 according to the control instructions.

[0059] Referring to Figures 3 and 4, in some embodiments, the power distribution gateway 100 may further include a power module 50, which is electrically connected to at least one of the processor 10, the energy management module 20, the access management module 30, and the input / output module 40. The power module 50 can supply power to at least one of the processor 10, the energy management module 20, the access management module 30, and the input / output module 40 to maintain the normal operation of each module in the power distribution gateway 100 without consuming the power in the power grid 200 and the external power supply 300. In some embodiments, the power grid 200 and the external power supply 300 can also supply power to the power module 50.

[0060] The following describes the application of the power distribution gateway 100 in conjunction with some specific embodiments.

[0061] In a specific embodiment, the power distribution gateway 100 can intelligently adjust the way the grid 200 and the external power source 300 supply power to the load 400, so as to minimize the power provided by the grid 200 and use more power generation power source 301 and energy storage power source 303 to supply power to the load 400. The power generation power source 301 is a solar power source. Since solar power sources are subject to weather restrictions during use, environmental data needs to be included in the reference range when adjusting the power supply method.

[0062] Specifically, the environmental data includes the weather conditions over the previous N days, and the load data includes the power consumption LP of each load 400 over the previous N days. Based on the load data collected over the previous N days, the processor 10 can obtain the average power consumption values ​​LP1 to LPN for each load 400, the average power consumption LAP for the total load 400, and the average daily power generation of the generator 301 under different weather conditions. In other words, the average power consumption of each load 400 is equal to the ratio of the sum of the daily power consumption of each load 400 over the previous N days to N.

[0063] That is: LPN=(LPN1+LPN2+...+LPNN) / N.

[0064] The average power consumption LAP of the load 400 is equal to the ratio of the sum of the daily power consumption of all loads 400 in the previous N days to N.

[0065] That is: LAP=(LAP1+LAP2+...+LAPN) / N.

[0066] The second operating information includes the power generation E1 of the generator 301 on sunny days over the previous N days, the power generation E2 of the generator 301 on rainy days over the previous N days, and the current remaining power BP of the energy storage power supply 303. Based on the second operating information and environmental data collected over the previous N days, the processor 10 can also obtain an average value PPV1 of the power generation of the generator 301 on sunny days based on the power generation E1 of the generator 301 on sunny days over the previous N days, and further obtain an average value PPV2 of the power generation of the generator 301 on rainy days based on the power generation E2 of the generator 301 on rainy days over the previous N days.

[0067] More specifically, in some embodiments, the processor 10 can also estimate the estimated power supply of the power generation source 301 for the day based on the environmental data of the day (the weather conditions of the day). If the current weather condition is sunny, the estimated power supply E0 for the day is the sum of the average power generation capacity PPV1 of the power generation source 301 on sunny days and the current remaining power BP of the energy storage source 303.

[0068] That is: E0=PPV1+BP.

[0069] When the current weather condition is rainy, the estimated power supply E0 for the day is the sum of the average power generation PPV2 of the power generation source 301 on rainy days and the current remaining power BP of the energy storage source 303 .

[0070] That is: E0=PPV2+BP.

[0071] The processor 10 can also compare the average power consumption LAP of the total load 400 with the estimated power consumption E0 for the day to determine the power consumption strategy for the day. For example, if the estimated power consumption E0 for the day is less than the average power consumption LAP of the total load 400, the processor 10 can also send a prompt message and / or a suggestion message to the input / output module 40.

[0072] Furthermore, in some embodiments, the prompt information may include at least one of the following information: prompting the user that the estimated power supply for today is insufficient, prompting the user that too many loads 400 are connected on that day, prompting the user that the current electricity price of the power grid 200, prompting the user that the power generation power of the power generation source 301 is low, or prompting the user that the maximum storage capacity of the energy storage source 303 is insufficient.

[0073] Furthermore, in some embodiments, the recommendation information includes at least one of the following information: recommending to shut down at least one load 400 and providing options for the load 400 to be shut down, recommending to control the external power supply 300 or the power grid 200 to supply power to the load 400 according to the fluctuation of the electricity price of the power grid 200, recommending to give priority to using the external power supply 300 to supply power to the load 400, and when the power of the external power supply 300 is exhausted, switching to the power grid 200 to supply power to the load 400, or recommending to increase the power generation power of the power generation power supply 301 and / or the maximum storage power of the energy storage power supply 303.

[0074] If any load 400 is selected to be shut down, the access management module 30 can automatically shut down any load 400, for example, the load 400 currently consuming the most energy. The access management module 30 can also shut down a specific load 400 based on a user-issued control command. If the external power supply 300 or the grid 200 is selected to control power supply to the load 400 based on fluctuations in the electricity price of the grid 200, the energy management module 20 can obtain information about electricity price fluctuations from the grid 200. When the electricity price of the grid 200 is high, the energy management module 20 controls the external power supply 300 to supply power to the load 400. When the electricity price of the grid 200 is low, the energy management module 20 controls the grid 200 to supply power to the load 400. If the external power supply 300 is selected to be the preferred power supply for the load 400, the energy management module 20 controls the external power supply 300 to supply power to the load 400. If the external power supply 300 is depleted, the energy management module 20 controls the grid 200 to supply power to the load 400, thereby minimizing energy consumption within the grid 200.

[0075] In a specific embodiment, the power distribution gateway 100 can predict the probability of power outages under different weather conditions based on the first operating information of the power grid 200 and provide a user prompt. Before the power outage, the energy management module 20 first controls the power grid 200 and / or the power generation source 301 to supply power to the load 400 to conserve as much power as possible in the energy storage source 303 and ensure that the remaining power in the energy storage source 303 can be supplied to the load 400 after the power outage. At the same time, the power generation source 301 can also transmit power to the energy storage source 303 to increase the power stored in the energy storage source 303.

[0076] Specifically, the environmental data includes weather conditions over the previous N days, and the first operating information includes the number of days N and the number of days X of power outages for the power grid 200 under various weather conditions over the previous N days. For example, the number of sunny days N1 over the previous N days and the number of days X1 of power outages for the power grid 200 during sunny days N1 over the previous N days; the number of rainy days N2 over the previous N days and the number of days X2 of power outages for the power grid 200 during rainy days over the previous N days; or the number of windy days N3 over the previous N days and the number of days X3 of power outages for the power grid 200 during windy days over the previous N days. The processor 10 can obtain a power outage probability η1 for the power grid 200 on sunny days based on the number of days X1 of power outages for sunny days over the previous N days and the number of days N1 of sunny days over the previous N days. That is, η1 = X1 / N1 × 100%. The processor 10 can also obtain a power outage probability η2 for the power grid 200 on rainy days based on the number of days X2 of power outages for the power grid 200 on rainy days over the previous N days and the number of days N2 of rainy days over the previous N days. That is, η2 = X2 / N2 × 100%. Processor 10 can also obtain the probability η3 of a power outage on power grid 200 during windy weather based on the number of windy weather days X3 and the number of windy weather days N3 in the previous N days. That is, η3 = X3 / N3 × 100%. When processor 10 obtains environmental data for the day, processor 10 can estimate the probability of a power outage on the day based on the current weather conditions. Processor 10 can also obtain the estimated power outage period for power grid 200 under various weather conditions based on the corresponding power outage times t in various weather conditions in the previous N days. For example, if the power outage times t on power grid 200 on sunny days in the previous N days were 8:00, 10:00, and 15:00, and the power outage times t were more frequent in the morning, then the estimated power outage period for power grid 200 on sunny days would be in the morning.

[0077] The details can be seen in the following table, where the total number of days N = 10:

[0078] More specifically, in some embodiments, if the current weather condition is sunny, the estimated power outage probability η0 for the day is the power outage probability η1 of the power grid 200 on a sunny day. If the current weather condition is rainy, the estimated power outage probability η0 for the day is the power outage probability η2 of the power grid 200 on a rainy day. If the current weather condition is windy, the estimated power outage probability η0 for the day is the power outage probability η2 of the power grid 200 on a windy day. If the estimated power outage probability η0 for the day is greater than a preset warning probability value within the processor 10 (this value can be set by the user or preset within the processor 10), the processor 10 can also send a prompt message and / or suggestion message to the input / output module 40.

[0079] Furthermore, in some embodiments, the prompt information may include at least one of the following information: prompting the user of the estimated probability of power outage today, prompting the user of the remaining power of the current energy storage power source 303, or prompting the user of the power generation capacity of the current power generation power source 301.

[0080] Furthermore, in some embodiments, the recommendation information includes a suggestion that only the grid 200 be used to power the load 400 before the predicted power outage. If only the grid 200 is used to power the load 400 before the predicted power outage, the energy management module 20 can receive a control instruction and control the grid 200 to prioritize powering the load 400. The energy management module 20 can also control the external power supply 300 to disconnect from the load 400 to maximize the conservation of energy stored in the energy storage power supply 303 for use during a power outage. If the user does not choose to adopt this recommendation, the load 400 continues to use energy from the generated power supply 301 and / or the energy storage power supply 303.

[0081] In a specific embodiment, the power distribution gateway 100 can intelligently adjust the charging and discharging process between the power generation source 301 and the energy storage source 303 according to the current environmental data. Specifically, in some embodiments, the access management module 30 can obtain the current environmental data. The second operating information includes the preset environmental data that the power generation source 301 needs to meet for power generation. When the current environmental data is within the range of the preset environmental data that the power generation source 301 needs to meet for power generation, the energy management module 20 can control the power generation source 301 to at least supply power to the load 400. When the current environmental data exceeds the range of the preset environmental data that the power generation source 301 needs to meet for power generation, the energy management module 20 can control the energy storage source 303 to supply power to the load 400.

[0082] For example, in some embodiments, the power source 301 is a photovoltaic power source 301. The access management module 30 can obtain the current external light intensity and the preset light intensity required for power generation by the power source 301. When the current external light intensity exceeds the preset light intensity, the energy management module 20 controls the power source 301 to supply power to the load 400. When the current external light intensity is lower than the preset light intensity, the energy management module 20 controls the energy storage power source 303 to supply power to the load 400.

[0083] In a specific embodiment, the power distribution gateway 100 can intelligently adjust the usage of the load 400 based on the current environmental data. Specifically, in some embodiments, the access management module 30 can obtain the current environmental data, and the load data includes the usage time of any load 400 in the previous N days, and the usage time includes but is not limited to the usage time and usage time period of the load 400. Based on the usage time of the load 400 in the previous N days, the processor 10 can obtain the average usage time of the load 400 per day and obtain the estimated usage time of the load 400 on the day based on the current environmental data and the average usage time of the load 400. Based on the estimated time, the access management module 30 can control the load 400 to start in advance before the expected usage time period, or automatically shut down the load 400 when the usage time reaches the estimated usage time.

[0084] Specifically, in some embodiments, the environmental data includes indoor temperature and outdoor temperature. The access management module 30 can obtain the current indoor temperature T1 and the current outdoor temperature T2, and the processor 10 is used to obtain the current indoor and outdoor temperature difference ΔT based on the current indoor temperature T1 and the current outdoor temperature T2. The average usage time of the load 400 includes the average daily start-up time of the load 400 (derived from the usage time period). Based on the current indoor and outdoor temperature difference and the average daily start-up time of the load 400, the processor 10 can obtain the preset time that the load 400 needs to be turned on in advance on that day. For example: when the current indoor and outdoor temperature difference is greater than the preset temperature difference, the access management module 30 is used to turn on the load 400 in advance of the first preset time; when the current indoor and outdoor temperature difference is less than the preset temperature difference, the access management module 30 is used to turn on the load 400 in advance of the second preset time; wherein, the first preset time should be greater than the second preset time.

[0085] In one specific embodiment, the power distribution gateway 100 can also determine the operating status of the load 400 by comparing the estimated power consumption of the load 400 with the current power consumption of the load 400, thereby preventing operational failures or fires caused by excessive load 400. Specifically, the load data includes the power consumption of each load 400 in the previous N days, and the processor 10 can obtain the estimated power consumption of each load 400 based on the power consumption of each load 400 in the previous N days. The access management module 30 can obtain the power consumption of each load 400 on the current day. Based on the estimated power consumption of each load 400 and the power consumption of each load 400 on the current day, the processor 10 can obtain the operating status of each load 400 on the current day. If the power consumption of each load 400 on the current day exceeds the estimated power consumption of each load 400, the processor 10 is further configured to send a prompt and / or suggestion to the input / output module 40. For example, it can prompt the user that too many loads 400 have been connected and suggest that the user shut down some loads 400.

[0086] Please refer to Figure 4. The power distribution gateway system of the embodiment of the present application includes the power distribution gateway 100 of any of the above embodiments, the external power supply 300, the power grid 200 and the load 400. The external power supply 300, the power grid 200 and the load 400 are all electrically connected to the power distribution gateway 100.

[0087] In the power distribution gateway system of the present application, the power distribution gateway 100 can obtain various parameters of the power grid 200, the external power source 300, and the load 400, and control different power sources to supply power to the load 400 based on the first operating information of the power grid 200 and the second operating information of the external power source 300, thereby realizing the function of saving the power of the power grid 200. Based on the load data and environmental data of the load 400, the power distribution gateway 100 can also control the operating conditions of different loads 400 to make the operation of the load 400 more intelligent and save power.

[0088] Referring to FIG. 4 and FIG. 5 , the control method of the power distribution gateway according to the embodiment of the present application includes:

[0089] 01: Acquire parameter information and first operating information of the power grid 200, and second operating information of the external power source 300;

[0090] 02: Determine the grid connection / off-grid connection information between the external power source 300 and the grid 200 according to the parameter information;

[0091] 03: Control the energy management module 20 to manage the working mode of the external power supply 300 and the grid 200 according to the grid connection / off-grid information;

[0092] 04: Control the energy management module 20 of the power distribution gateway 100 to manage the power supply of the power grid 200 and the charging and discharging of the external power supply 300 according to the first operation information and the second operation information;

[0093] 05: Obtaining load data of the load 400 and environmental data of the environment in which the load 400 is located; and

[0094] 06: Control the access management module 30 of the power distribution gateway 100 to turn on or off the load 400 according to the load data and environmental data.

[0095] The processor 10 can obtain the operating status of the externally connected power grid 200, external power supply 300, and load 400 based on the acquired parameter information, first operating information, second operating information, and load data. The processor 10 can also obtain the environmental conditions of the external power supply 300 and load 400 based on the acquired environmental data. After obtaining the operating and environmental conditions, the processor 10 can control the various modules within the power distribution gateway 100 according to the different operating and environmental conditions to achieve power supply management and load 400 management. The energy management module 20 can send the acquired parameter information, first operating information, and / or second operating information to the processor 10, receive control commands from the processor 10 and external users, and control the power supply process of the power grid 200 and external power supply 300 in accordance with the control commands. The access management module 30 can connect to the external load 400 and sensor 500 and send the acquired load data and / or environmental data to the processor 10. The access management module 30 can also receive control commands from the processor 10 and external users and control the on and off of the load 400 in accordance with the control commands.

[0096] Referring to FIG. 4 and FIG. 6 , in certain embodiments, the control method of the power distribution gateway further includes:

[0097] 07: Receive external input signals to generate control instructions;

[0098] 08: responding to the control instruction and controlling the energy management module 20 to manage the power supply of the power grid 200 and the charging and discharging of the external power supply 300 according to the first operation information and the second operation information; and

[0099] 09: Respond to the control instruction and control the access management module 30 to turn on or off the load 400 according to the load data and the environment data.

[0100] The control instructions can be commands issued by a user through the input / output module 40 or control policies issued by the processor 10. In some embodiments, the processor 10 can respond to the control instructions sent to the processor 10 by the input / output module 40 and control the energy management module 20 to manage the power supply of the power grid 200 and the charging and discharging of the external power supply 300 based on the first and second operating information, and control the access management module 30 to turn on or off the load 400 based on the load data and environmental data. In other embodiments, the access management module 30 can directly respond to the control instructions and turn on or off the load 400 based on the load data and environmental data.

[0101] Referring to FIG. 4 and FIG. 7 , in certain embodiments, the control method of the power distribution gateway further includes:

[0102] 10: Transmit at least one of the parameter information, first operation information, second operation information, grid-connected / off-grid information, load data, and environmental data from the processor 10 to the terminal and / or the cloud.

[0103] The input / output module 40 may be a communication module 41, which is capable of connecting to a terminal and / or the cloud and receiving input signals from the terminal and / or the cloud to generate control instructions. In one example, the communication module 41 can also be electrically connected to the processor 10 so that the control instructions can be transmitted to the processor 10. The processor 10 can control the energy management module 20, the access management module 30, and the communication module 41 to perform different functions according to the content of the control instructions. For example, when a user issues an instruction to query the operating status of the power distribution gateway 100, the processor 10 can control the communication module 41 to transmit at least one of parameter information, first operating information, second operating information, grid-connected / off-grid information, load data, and environmental data from the processor 10 to the terminal and / or the cloud. In another example, the communication module 41 can also be electrically connected to the access management module 30. In this case, the communication module 41 can directly transmit the control instructions to the access management module 30, and enable the access management module 30 to control the load 400 according to the control instructions.

[0104] Referring to FIG. 4 and FIG. 7 , in certain embodiments, the control method of the power distribution gateway further includes:

[0105] 11: Display at least one of parameter information, first operation information, second operation information, grid-connected / off-grid information, load data, and environmental data from the processor 10.

[0106] Among them, the input and output module 40 can also be a display module 43, and the user can input control instructions through the display module 43. In one example, the display module 43 can be connected to the processor 10 to pass the control instructions input by the user to the processor 10, and the processor 10 can control the energy management module 20, the access management module 30 and the display module 43 to perform different functions according to the content of the control instructions. For example: when the user issues an instruction to query the operating status of the power distribution gateway 100, the processor 10 can control the display module 43 to display at least one of the parameter information, first operating information, second operating information, grid-connected / off-grid information, load data and environmental data from the processor 10. In another example, the display module 43 can also be electrically connected to the access management module 30. At this time, the display module 43 can directly pass the control instructions to the access management module 30, and enable the access management module 30 to control the load 400 according to the control instructions.

[0107] In summary, in the control method of the power distribution gateway of the present application, the power distribution gateway 100 can obtain various parameters of the power grid 200, the external power supply 300, and the load 400, and control different power supplies to supply power to the load 400 according to the first operating information of the power grid 200 and the second operating information of the external power supply 300, so as to achieve the function of saving the power of the power grid 200. According to the load data and environmental data of the load 400, the power distribution gateway 100 can also control the operating conditions of different loads 400 to make the operation of the load 400 more intelligent and save electricity.

[0108] In the description of this specification, the descriptions with reference to the terms "certain embodiments", "in an example", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0109] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A power distribution gateway, characterized in that: include: A processor, an energy management module and an access management module, wherein the processor is electrically connected to the energy management module and the access management module, the energy management module is electrically connected to a power grid, an external power supply and a load, and the access management module is electrically connected to the load; wherein: The energy management module is used to obtain parameter information of the power grid, obtain first operation information of the power grid and second operation information of the external power supply; The access management module is used to obtain the load data of the load and the environmental data of the environment in which the load is located, and to open or close the load according to the load data and the environmental data; The processor is also used to determine the on-grid / off-grid information between the external power supply and the power grid based on the parameter information, to control the energy management module to manage the working mode of the external power supply and the power grid based on the on-grid / off-grid information, and to control the energy management module to manage the power supply of the power grid and the charging and discharging of the external power supply based on the first operating information and the second operating information; the processor is also used to control the access management module to turn on or off the load based on the load data and the environmental data.

2. The power distribution gateway according to claim 1, characterized in that: The power distribution gateway also includes: An input-output module, the input-output module is electrically connected to the processor, and the input-output module is used to receive external input signals to generate control instructions; the processor is also used to respond to the control instructions, and control the energy management module to manage the power supply of the power grid and the charging and discharging of the external power supply according to the first operating information and the second operating information, and control the access management module to turn on or off the load according to the load data and the environmental data.

3. The power distribution gateway according to claim 2, characterized in that: The power distribution gateway also includes: An input-output module, the input-output module is electrically connected to the access management module, and the input-output module is used to receive external input signals to generate control instructions; the access management module is also used to respond to the control instructions and turn on or off the load according to the load data and the environmental data.

4. The power distribution gateway according to claim 2 or 3, characterized in that: The input-output module is a communication module, and the communication module is also used to transmit at least one of the parameter information, the first operation information, the second operation information, the grid-connected / off-grid information, the load data and the environmental data from the processor to the terminal and / or the cloud.

5. The power distribution gateway according to claim 2 or 3, characterized in that: The input-output module is a display module, and the display module is also used to display at least one of the parameter information, the first operation information, the second operation information, the grid-connected / off-grid information, the load data and the environmental data from the processor.

6. The power distribution gateway according to claim 2, characterized in that: The power distribution gateway also includes: A power module, the power module is electrically connected to at least one of the processor, the energy management module, the access management module and the input / output module, and the power module is used to supply power to at least one of the processor, the energy management module, the access management module and the input / output module.

7. The power distribution gateway according to claim 2, characterized in that: The external power source includes a power generation power source and an energy storage power source; the load data includes the power consumption of each load in the previous N days; the second operation information includes the power generation of the power generation power source on sunny days in the previous N days, the power generation of the power generation power source on rainy days in the previous N days, and the current remaining power BP of the energy storage power source; The processor is also used to obtain the average power consumption values ​​LP1~LPN of each load and the average power consumption value LAP of the total load based on the power consumption of each load in the previous N days, obtain the average power consumption value PPV1 of the power generation of the power generation source on sunny days based on the power generation of the power generation source on sunny days in the previous N days, and obtain the average power generation value PPV2 of the power generation of the power generation source on rainy days based on the power generation of the power generation source on rainy days in the previous N days; the processor is also used to estimate the power supply for the day based on the current weather conditions, and compare the average power consumption value LAP of the total load with the estimated power supply for the day; when the estimated power supply for the day is less than the average power consumption value LAP of the total load, the processor is also used to send prompt information and / or suggestion information to the input and output module.

8. The power distribution gateway according to claim 7, characterized in that: When the current weather condition is sunny, the estimated power supply for the day is the sum of the average power generation amount PPV1 of the power generation source on sunny days and the current remaining power BP of the energy storage source; When the current weather condition is rainy, the estimated power supply for the day is the sum of the average power generation value PPV2 of the power generation source on rainy days and the current remaining power BP of the energy storage source.

9. The power distribution gateway according to claim 7, characterized in that: The suggestion information includes at least one of the following information: It is recommended to shut down at least one load and provide options for the loads to be shut down; It is suggested to control the external power source or the grid to supply power to the load according to the fluctuation of the electricity price of the grid; It is recommended to preferentially use the external power supply to power the load, and when the power of the external power supply is exhausted, switch to the power grid to power the load; and It is recommended to increase the power generation of the power generation source and / or the maximum storage capacity of the energy storage source.

10. The power distribution gateway according to claim 9, characterized in that: In the case of selecting to shut down any load, the access management module is used to control shutting down any load; In the case where it is selected to control the external power source or the grid to supply power to the load according to the fluctuation of the power price of the grid, The energy management module is used to control the external power supply to supply power to the load when the electricity price of the grid is at a high value, and to control the grid to supply power to the load when the electricity price of the grid is at a low value; In the case where the external power supply is chosen to be used to supply power to the load, the energy management module is used to control the external power supply to supply power to the load. In the case where the power of the external power supply is exhausted, the energy management module is also used to control the power grid to supply power to the load.

11. The power distribution gateway according to claim 2, characterized in that: The first operating information includes the number of power outage days X and the corresponding power outage times t of the power grid under various weather conditions in the previous N days; the processor is also used to obtain the power outage probability η and the power outage period of the power grid under various weather conditions based on the number of power outage days X and the corresponding power outage time t under various weather conditions in the previous N days; the processor is also used to estimate the power outage probability and the power outage period of the day based on the current weather conditions, the power outage probability η and the power outage period under various weather conditions; when the estimated power outage probability is greater than the warning probability value preset in the processor, the processor is also used to send prompt information and / or suggestion information to the input and output module.

12. The power distribution gateway according to claim 11, characterized in that: The suggested information includes: It is recommended that before the estimated power outage period, only the power grid be used to supply power to the load; Before the estimated power outage period, when only the power grid is used to supply power to the load, the energy management module is also used to control the power grid to supply power to the load, and control the external power supply to be disconnected from the load.

13. The power distribution gateway according to claim 2, characterized in that: The external power supply includes a power generation power supply and an energy storage power supply. The access management module is used to obtain the current environmental data. The second operating information includes preset environmental data that the power generation power supply needs to meet for power generation. When the current environmental data is within the range of the preset environmental data that the power generation power supply needs to meet for power generation, the energy management module is used to control the power generation power supply to at least supply power to the load; when the current environmental data exceeds the range of the preset environmental data that the power generation power supply needs to meet for power generation, the energy management module is used to control the energy storage power supply to supply power to the load.

14. The power distribution gateway according to claim 13, characterized in that: The power generation source is a photovoltaic power generation source; the current environmental data includes the current external light intensity; the preset environmental data that the power generation source needs to meet for power generation includes the preset light intensity; when the current external light intensity is higher than the preset light intensity, the energy management module is used to control the power generation source to supply power to the load; when the current external light intensity is lower than the preset light intensity, the energy management module is used to control the energy storage power supply to supply power to the load.

15. The power distribution gateway according to claim 2, characterized in that: The access management module is used to obtain the current environmental data, the load data includes the usage time of the load in the previous N days, the processor is used to obtain the average usage time of the load based on the usage time of the load in the previous N days, and the processor is used to obtain the estimated usage time of the load on the day based on the current environmental data and the average usage time of the load.

16. The power distribution gateway according to claim 15, characterized in that: The environmental data includes indoor temperature and outdoor temperature, the access management module is used to obtain the current indoor temperature and the current outdoor temperature, and the processor is used to obtain the current indoor and outdoor temperature difference based on the current indoor temperature and the current outdoor temperature; the average usage time of the load includes the average daily start-up time of the load, and the processor is also used to obtain the preset time when the load needs to be turned on in advance on the day based on the current indoor and outdoor temperature difference and the average daily start-up time of the load.

17. The power distribution gateway according to claim 16, characterized in that: When the current temperature difference between indoor and outdoor is greater than the preset temperature difference, the access management module is used to turn on the load in advance by a first preset time; when the current temperature difference between indoor and outdoor is less than the preset temperature difference, the access management module is used to turn on the load in advance by a second preset time; the first preset time is greater than the second preset time.

18. The power distribution gateway according to claim 2, characterized in that: The load data includes the power consumption of each load in the previous N days, and the processor is used to obtain the estimated power consumption of each load based on the power consumption of each load in the previous N days; the access management module is used to obtain the power consumption of each load on the day; the processor is used to obtain the operating status of each load on the day based on the estimated power consumption of each load and the power consumption of each load on the day; when the power consumption of each load on the day is higher than the estimated power consumption of each load, the processor is also used to send prompt information and / or suggestion information to the input and output module.

19. A power distribution gateway system, characterized in that: It comprises the power distribution gateway, external power supply, power grid and load as described in any one of claims 1-18, and the external power supply, the power grid and the load are all electrically connected to the power distribution gateway.

20. A control method for a power distribution gateway, characterized in that: include: Acquire parameter information and first operation information of the power grid, and second operation information of the external power supply; Determine the grid connection / off-grid information between the external power source and the grid according to the parameter information; Controlling the energy management module to manage the working mode of the external power supply and the power grid according to the grid-connected / off-grid information; Controlling the energy management module to manage the power supply of the power grid and the charging and discharging of the external power supply according to the first operation information and the second operation information; Acquiring load data of a load and environmental data of an environment in which the load is located; and The access management module is controlled to turn on or off the load according to the load data and the environment data.

Images