Power distribution system and power distribution method

Abstract

The power distribution system 100 includes a grid connection bus 10, an inverter module 60, a plurality of power supply modules 20, and an energy management module 40. The grid connection bus 10 is electrically connected to power consumption modules 30. The energy management module 40 is used to obtain the total output power of the power supply modules 20 and the total power consumption of the power consumption modules 30, and to adjust the output power of at least some of the power supply modules 20 according to the total output power and the total power consumption.

Description

[Technical Field]

[0001] This application relates to the field of power distribution technology, and more particularly to power distribution systems and methods. [Background technology]

[0002] Currently, power distribution systems employ a combination of centralized and distributed energy storage to meet their own power supply needs, prevent the entire power distribution system from shutting down when the centralized energy storage fails, and reduce the power distribution system's dependence on the power grid. Distributed energy storage can include solar power generation, wind power generation, diesel power generation, and energy storage devices. Solar power generation and wind power generation are both maximized output, meaning that their output power is generally not regulated, while diesel power generation and energy storage devices' output power is regulated. Generally, power distribution systems use power supply modules (including centralized energy storage and distributed energy storage) to supply power to power consumption devices. However, when the power supply power of the power supply module and the operating status or number of connections of the power consumption modules change during operation of the power distribution system, the power distribution system cannot adaptively adjust the power supply module accordingly, which affects the normal operation of the power distribution system. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE INVENTION Embodiments of the present application provide a power distribution system and a method. [Means for solving the problem]

[0004] According to an embodiment of the present application, a power distribution system includes a grid connection bus, an inverter module, a plurality of power supply modules, and an energy management module. The grid connection bus is used to electrically connect to power consumption modules. The inverter modules include a first type inverter module and a second type inverter module, and both the first type inverter module and the second type inverter module are electrically connected to the grid connection bus. The plurality of power supply modules are used to supply power to the power consumption modules, and the plurality of power supply modules include a first set of power supply modules and a second set of power supply modules, and the first set of power supply modules includes at least two of the power supply modules, and one of the first type inverter module is connected between the first set of power supply modules and the grid connection bus, and at least some of the power supply modules in the second set of power supply modules are electrically connected directly to the grid connection bus, and / or one of the second type inverter module is connected between at least some of the power supply modules in the second set of power supply modules and the grid connection bus. The energy management module is connected to the grid connection bus, and is used for obtaining a total output power of the first set of power supply modules and an output power of each of the power supply modules in the second set of power supply modules to obtain a total output power of the power supply modules; obtaining power consumption of each of the power consumption modules to obtain a total power consumption of the power consumption modules; and adjusting the output power of at least some of the power supply modules according to the total output power and the total power consumption.

[0005] In some embodiments, the plurality of power supply modules include energy storage modules and power generation modules, and the power generation modules include adjustable power generation modules, and the energy management module is further configured to increase the output power of the energy storage modules and / or increase the output power of the adjustable power generation modules when the total output power is less than the total power consumption.

[0006] In some embodiments, the grid connection bus is connected to a utility grid, and the energy management module is further adapted to control power feeding from the utility grid to the power consumption modules when the total output power is less than the total power consumption.

[0007] In some embodiments, the plurality of power supply modules include energy storage modules and power generation modules, and the power generation modules include adjustable power generation modules. The energy management module is further configured to: control stopping power supply from the energy storage modules to the power consumption modules when a total output power of the power supply modules is greater than the total power consumption; and control power supply from the power generation modules to the energy storage modules and / or a utility power grid or reduce power generation of the adjustable power generation modules when a total output power of the power generation modules is greater than the total power consumption.

[0008] In some embodiments, the energy management module includes a first energy management unit, the first energy management unit being a stand-alone structure and electrically connected to the grid connection bus.

[0009] In some embodiments, the energy management module includes a second energy management unit, and the second energy management unit is integrated into the first type of inverter module electrically connected to the first set of power supply modules.

[0010] In some embodiments, the second set of power supply modules includes first type power supply modules, the first type power supply modules are used to generate DC power, and the first type power supply modules include energy storage modules, and the first type inverter modules are connected between each of the first type power supply modules and the grid connection bus, the first type inverter modules are used to convert DC power generated by the first type power supply modules into AC power and transmit the AC power via the grid connection bus to a commercial power grid and / or the power consumption modules, and the first type inverter modules are also used to convert AC power transmitted from the commercial power grid via the grid connection bus into DC power and store it in the energy storage modules.

[0011] In some embodiments, the second set of power supply modules includes a second type of power supply module, and the second type of power supply module is electrically connected directly to the grid connection bus.

[0012] In some embodiments, the power distribution system further comprises a first smart outlet, the first smart outlet electrically connected between the first type inverter module and the grid connection bus, the first smart outlet being used to detect the output power of the first set of power supply modules or the output power of a corresponding first type power supply module; or the first smart outlet electrically connected between the second type power supply module and the grid connection bus, the first smart outlet being used to detect the output power of a corresponding second type power supply module; and the energy management module being further used to obtain each output power detected by the first smart outlet.

[0013] In some embodiments, the power distribution system further comprises a second smart outlet, the second smart outlet electrically connected between the commercial power grid and the power consuming modules, the second smart outlet used to detect power consumption of the power consuming modules, and the energy management module further used to obtain the power consumption of each of the power consuming modules detected by the second smart outlet.

[0014] In some embodiments, the energy management module is provided with a first communication unit, the power supply module is provided with a second communication unit, and the energy management module obtains the output power of each of the power supply modules through communication between the first communication unit and the second communication unit.

[0015] In some embodiments, the energy management module is provided with a first communication unit, the power consumption modules are provided with a third communication unit, and the energy management module obtains the power consumption of each of the power consumption modules through communication between the first communication unit and the third communication unit.

[0016] In some embodiments, when the energy management module includes a first energy management unit and a second energy management unit, the first energy management unit is used to obtain a total output power of the first set of power supply modules and an output power of each of the power supply modules in the second set of power supply modules to obtain a total output power of the power supply modules, obtain a power consumption of each of the power consumption modules to obtain a total power consumption of the power consumption modules, and adjust the output power of at least some of the power supply modules according to the total output power and the total power consumption, and when the first energy management unit is abnormal, the second energy management unit takes over from the first energy management unit.

[0017] A power distribution method according to an embodiment of the present application is applied to a power distribution system, the power distribution system comprising a grid connection bus, an inverter module, a plurality of power supply modules, and an energy management module, the grid connection bus being used for electrically connecting to power consumption modules, the inverter modules including a first type inverter module and a second type inverter module, both of which are electrically connected to the grid connection bus, the plurality of power supply modules being used for supplying power to the power consumption modules, the plurality of power supply modules including a first set of power supply modules and a second set of power supply modules, the first set of power supply modules including at least two of the power supply modules, one of the first type inverter module connected between the first set of power supply modules and the grid connection bus, each of the power supply modules in the second set of power supply modules being electrically connected directly to the grid connection bus, and / or one of the second type inverter module connected between each of the power supply modules in the second set of power supply modules and the grid connection bus. The power distribution method includes the steps of obtaining a total output power of the first set of power supply modules and an output power of each of the power supply modules in the second set of power supply modules to obtain a total output power of the power supply modules, obtaining power consumption of each of the power consumption modules to obtain a total power consumption of the power consumption modules, and adjusting the output power of at least some of the power supply modules according to the total output power and the total power consumption.

[0018] In some embodiments, the plurality of power supply modules include energy storage modules and power generation modules, and the power generation modules include adjustable power generation modules. Adjusting the output power of at least some of the power supply modules according to the total output power and the total power consumption includes increasing the output power of the energy storage modules and / or increasing the output power of the adjustable power generation modules when the total output power is less than the total power consumption.

[0019] In some embodiments, the power distribution method further comprises controlling power supply from a utility grid to the power consumption modules when the total output power is less than the total power consumption.

[0020] In some embodiments, the plurality of power supply modules include energy storage modules and power generation modules, and the power generation modules include adjustable power generation modules. The power distribution method further includes controlling a stop of power supply from the energy storage modules to the power consumption modules when a total output power of the power supply modules is greater than the total power consumption, and controlling power supply from the power generation modules to the energy storage modules and / or a utility power grid or reducing power generation of the adjustable power generation modules when a total output power of the power generation modules is greater than the total power consumption.

[0021] In the power distribution system and method according to the embodiments of the present application, the total output power of the power supply modules is obtained by obtaining the total output power of the first set of power supply modules and the output power of each power supply module in the second set of power supply modules, and the power consumption of each power consumption module is obtained to obtain the total power consumption of the power consumption modules. By adjusting the output power of at least some of the power supply modules according to the total output power and the total power consumption, the total output power of the power supply modules can be adaptively adjusted according to changes in the power consumption modules, and further ensuring the normal operation of the power distribution system.

[0022] Additional aspects and advantages of the embodiments of the present application will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the embodiments of the present application.

[0023] The above and / or additional aspects and advantages of the present application will become apparent and easier to understand from the following description of the embodiments taken in conjunction with the drawings. [Brief explanation of the drawings]

[0024] [Figure 1]1 is a structural schematic diagram of a power distribution system according to some embodiments of the present application; [Figure 2] FIG. 2 is a structural schematic diagram of a power distribution system according to some other embodiments of the present application. [Figure 3] 1 is a structural schematic diagram of a power distribution system according to further some embodiments of the present application; [Figure 4] FIG. 2 is a structural schematic diagram of a power distribution system according to some other embodiments of the present application. [Figure 5] 1 is a structural schematic diagram of a power distribution system according to further some embodiments of the present application; [Figure 6] 1 is a flowchart of a power distribution method according to some embodiments of the present application. [Figure 7] 1 is a flowchart of a power distribution method according to some embodiments of the present application. [Figure 8] 1 is a flowchart of a power distribution method according to some embodiments of the present application. [Figure 9] 1 is a flowchart of a power distribution method according to some embodiments of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, the embodiments of the present application will be further described in combination with the drawings. In all drawings, the same or similar symbols indicate the same or similar elements or elements having the same or similar functions. In addition, the embodiments of the present application described below with reference to the drawings are merely illustrative and are used only to interpret the embodiments of the present application, and should not be understood as limitations on the present application.

[0026] 1 , a power distribution system 100 according to an embodiment of the present application includes a grid connection bus 10, an inverter module 60, a plurality of power supply modules 20, and an energy management module 40. The grid connection bus 10 is used to electrically connect to the power consumption modules 30. The inverter module 60 includes a first type inverter module 61 and a second type inverter module 63, and both the first type inverter module 61 and the second type inverter module 63 are electrically connected to the grid connection bus 10. The plurality of power supply modules 20 are used to supply power to the power consumption modules 30, and the plurality of power supply modules 20 include a first set of power supply modules 21 and a second set of power supply modules 23, the first set of power supply modules 21 includes at least two power supply modules 20, one first type inverter module 61 is connected between the first set of power supply modules 21 and the grid connection bus 10, at least some of the power supply modules 20 in the second set of power supply modules 23 are directly electrically connected to the grid connection bus 10, and / or one second type inverter module 63 is connected between at least some of the power supply modules 20 in the second set of power supply modules 23 and the grid connection bus 10. The energy management module 40 is connected to the grid connection bus 10, and is used to obtain the total output power of the power supply modules 21 and the output power of each power supply module 20 in the second set of power supply modules 23 to obtain the total output power of the power supply modules 20, obtain the power consumption of each power consumption module 30 to obtain the total power consumption of the power consumption modules 30, and adjust the output power of at least some of the power supply modules 20 according to the total output power and the total power consumption. It should be noted that the power distribution system 100 of the embodiment of the present application may be, but is not limited to, a home power distribution system, a school power distribution system, a factory power distribution system, etc.

[0027] In the power distribution system 100 according to the embodiment of the present application, the total output power of the power supply modules 20 is obtained by obtaining the total output power of the first set of power supply modules 21 and the output power of each power supply module 20 in the second set of power supply modules 23, and the power consumption of each power consumption module 30 is obtained to obtain the total power consumption of the power consumption modules 30. By adjusting the output power of at least some of the power supply modules 20 according to the total output power and the total power consumption, the total output power of the power supply modules 20 can be adaptively adjusted according to changes in the power consumption modules 30, and the normal operation of the power distribution system 100 is further ensured.

[0028] Referring to FIG. 1 , in some embodiments, the grid connection bus 10 is a line structure for power transmission. The grid connection bus 10 can be made of a metallic conductive material. In the present application, the grid connection bus 10 can include an AC power transmission line, i.e., the grid connection bus 10 can be used to transmit AC power. Specifically, the grid connection bus 10 is electrically connected to a plurality of power supply modules 20 and power consumption modules 30, so that the grid connection bus 10 can transmit power generated by the power supply modules 20 to the power consumption modules 30 and ensure the normal operation of the power consumption modules 30.

[0029] The first inverter module 61 may be a hybrid inverter, also known as a multi-mode inverter. A hybrid inverter is a device that combines the functions of a grid-connected inverter and an off-grid inverter. The second inverter module 63 may be an inverter, which converts DC power into constant-frequency constant-voltage or frequency-voltage-modulated AC power (typically 220V, 50Hz sine wave). In this application, the inverter converts DC power generated by the second set of power supply modules 23 electrically connected to the inverter into AC power and outputs the AC power to the power consumption modules 20 and / or the utility power grid 30. In this application, the inverter module 60 (including the first inverter module 61 and the second inverter module 63) converts DC power generated by the first set of power supply modules 21 and the second set of power supply modules 23 into AC power and transmits the AC power to the utility power grid 50 and / or the power consumption modules 30. Thus, if the output power of the power supply module 20 meets the power consumption of the power consumption module 30, the power supply module 20 can make a profit by transmitting the excess power to the commercial power grid 50 and selling it to the power company; on the other hand, if the output power of the power supply module 20 does not meet the power consumption of the power consumption module 30, the power consumption module 30 will obtain power from the commercial power grid 50 to meet the power consumption of the power consumption module 30 and ensure the normal operation of the power consumption module 30.

[0030] In addition, the inverter modules 60 (including the first type inverter modules 61 and the second type inverter modules 63) are further used to convert AC power transmitted from the commercial power grid 50 via the grid connection bus 10 into DC power and store it in the energy storage module 25. For example, when the electricity rate of the commercial power grid 50 is relatively low and the power generated by the power generation module 27 is equal to or less than the power consumption required by the power consumption module 30, the commercial power grid 50 can transmit power to the inverter module 60 via the grid connection bus 10, and the inverter module 60 converts the transmitted AC power into DC power and stores it in the energy storage module 25 for use.

[0031] The plurality of power supply modules 20 may include energy storage modules 25 and power generation modules 27, and the total output power of the power supply modules 20 is the sum of the total output power of the energy storage modules 25 and the total output power of the power generation modules 27. Specifically, the energy storage modules 25 and the power generation modules 27 are each electrically connected to the grid connection bus 10, so that the energy storage modules 25 and the power generation modules 27 can transmit power to the power consumption modules 30 via the grid connection bus 10. The power generation modules 27 can also transmit power to the energy storage modules 25 via the grid connection bus 10, so that the power generation modules 27 can meet the power consumption demands of the power consumption modules 30, and simultaneously transmit excess power to the energy storage modules 25 for storage. It is worth noting that the power supply modules 20 in the first set of power supply modules 21 may only include the energy storage modules 25 or only include the power generation modules 27, or may simultaneously include the energy storage modules 25 and the power generation modules 27. Similarly, the power supply modules 20 in the second set of power supply modules 23 may include only energy storage modules 25, only power generation modules 27, or both energy storage modules 25 and power generation modules 27 at the same time.

[0032] Specifically, the energy storage module 25 may be an energy storage power source, and in this case, the total output power of the energy storage module 25 is the output power of the energy storage power source. The energy storage power source may include, but is not limited to, a lead-acid battery, a nickel-metal hydride battery, or a lithium-ion battery. The power generation module 27 may include, but is not limited to, a solar power generation device, a wind power generation device, or a diesel generator. When the power generation module 27 includes a solar power generation device, a wind power generation device, and a diesel generator, the total output power of the power generation module 27 is the sum of the power generated by the solar power generation device, the wind power generation device, and the diesel generator. A solar power generation device is a power generation device that directly converts solar radiation energy into electricity using the photovoltaic effect of photovoltaic cells. A wind power generation device is a power generation device that generates electricity using wind energy. A diesel generator is a power machine that uses diesel or other fuel as a fuel and a diesel engine as a prime mover to generate electricity, and the generator can convert other forms of energy into electricity.

[0033] 1 , in some embodiments, the plurality of power supply modules 20 includes a first set of power supply modules 21 and a second set of power supply modules 23, and the first set of power supply modules 21 includes at least two power supply modules 20. When the plurality of power supply modules 20 includes the first set of power supply modules 21 and the second set of power supply modules 23, the total output power of the power supply modules 20 is the sum of the total output power of the first set of power supply modules 21 and the output power of each power supply module 20 in the second set of power supply modules 23.

[0034] Specifically, in some embodiments, the first set of power supply modules 21 may include two energy storage modules 25, or the first set of power supply modules 21 may include two power generation modules 27, or the first set of power supply modules 21 may include at least one energy storage module 25 and at least one power generation module 27. All of the first set of power supply modules 21 are electrically connected to the same first type inverter module 61, so that power generated by at least two of the power supply modules 20 in the first set of power supply modules 21 is transmitted to the grid connection bus 10 by the first type inverter module 61. For example, in combination with FIG. 1, the first set of power supply modules 21 may include one energy storage power source 25 and one solar power generation device 27, and the energy storage power source 25 and the solar power generation device 27 are both electrically connected to the same first type inverter module 61, so that the power generated by the one energy storage power source 25 and the one solar power generation device 27 passes through the first type inverter module 61 to convert DC to AC, and then is transmitted to the grid connection bus 10.

[0035] The second set of power supply modules 23 may include a plurality of power supply modules 20 (including energy storage modules 25 and power generation modules 27). If the currents generated by each power supply module 20 in the second set of power supply modules 23 are all AC power, each power supply module 20 in the second set of power supply modules 23 is directly electrically connected to the grid connection bus 10. If the currents generated by each power supply module 20 in the second set of power supply modules 23 are all DC power, a second-type inverter module 63 is connected between each power supply module 20 in the second set of power supply modules 23 and the grid connection bus 10. That is, the DC power generated by each power supply module 20 in the second set of power supply modules 23 passes through the second-type inverter module 63 to be converted into AC power before being transmitted to the grid connection bus 10.

[0036] It is worth noting that in some embodiments, when the second set of power supply modules 23 includes an energy storage power source, a solar power generation device, a wind power generation device, and a diesel generator, the power supply modules 20 in the second set of power supply modules 23 are electrically connected to the grid connection bus 10 respectively, i.e., the energy storage power source, the solar power generation device, the wind power generation device, and the diesel generator are all independently connected to the grid connection bus 10, and the power generated independently is supplied to the power consumption module 30 via the grid connection bus 10; and the first set of power supply modules 21 are only connected to the energy storage power source, the solar power generation device, the wind power generation device, and the diesel generator. , wind power generation equipment, and diesel generators, the power generated by at least two of the energy storage power source, solar power generation equipment, wind power generation equipment, and diesel generators is collected and then supplied to the power consumption module 30 via the grid connection bus 10. For example, the energy storage power source and the solar power generation equipment are both electrically connected to the same device (e.g., a first-type inverter module 61), and the first-type inverter module 61 converts direct current to alternating current, after which the power generated by the energy storage power source and the solar power generation equipment is transmitted to the power consumption module 30 via the grid connection bus 10.

[0037] In some embodiments, the second set of power supply modules 23 includes a first type of power supply module and a second type of power supply module. The first type of power supply module is used to generate DC power and must be electrically connected to the grid connection bus 10 by a second type of inverter module 63, and the energy storage power source 25, the solar power generation device 27, and the wind power generation device 27 all belong to the first type of power supply module. The second type of power supply module is used to generate AC power and is electrically connected directly to the grid connection bus 10, and the diesel generator 27 belongs to the second type of power supply module.

[0038] Specifically, in some embodiments, the current directly generated by the first type of power supply module is DC power, which needs to be converted to AC power for transmission to the utility grid 50 and / or the power consumption modules 30. The current directly generated by the second type of power supply module is AC power, which means that the second type of power supply module is directly electrically connected to the grid connection bus 10, i.e., the current generated by the second type of power supply module can be directly transmitted to the utility grid 50 and / or the power consumption modules 30. A second type of inverter module 63 is electrically connected between each of the first type of power supply modules and the grid connection bus 10. The second type of inverter module 63 converts the DC power generated by the first type of power supply module into AC power and transmits the AC power via the grid connection bus 10 to the utility grid 50 and / or the power consumption modules 30. The second type of inverter module 63 is further used to convert the AC power transmitted from the utility grid 50 via the grid connection bus 10 into DC power and store it in the energy storage module 25. 1 , when the power supply modules 20 include an energy storage power source 25, a solar power generator 27, a wind power generator 27, and a diesel generator 27, the first type of power supply modules may include the energy storage power source 25, the solar power generator 27, and the wind power generator 27, and the second type of power supply modules may include the diesel generator 27. It should be noted that in some embodiments, the first set of power supply modules 21 may also include a first type of power supply module and a second type of power supply module.

[0039] In some embodiments, the number of first-type power supply modules in the second set of power supply modules 23 may have a one-to-one relationship with the number of second-type inverter modules 63. In some examples, each first-type power supply module (e.g., power generation module 27 and energy storage module 25) in the second set of power supply modules 23 corresponds to one second-type inverter module 63. For example, as shown in FIG. 1 , if the number of power supply modules 20 in the second set of power supply modules 23 is four (one solar power generation device 27, one wind power generation device 27, one energy storage power source 25, and one diesel generator 27), the energy storage power source 25, the solar power generation device 27, and the wind power generation device 27 are all first-type power supply modules, and the diesel generator 27 is a second-type power supply module. In this case, there are three second-type inverter modules 63, and the solar power generation device 27 is electrically connected to the grid connection bus 10 by one second-type inverter module 63, the wind power generation device 27 is electrically connected to the grid connection bus 10 by another second-type inverter module 63, the energy storage power source 25 is electrically connected to the grid connection bus 10 by another second-type inverter module 63, and the diesel generator is directly electrically connected to the grid connection bus 10.

[0040] The energy management module 40 may be an energy management system (EMS), and generally, the energy management module 40 may include functions of data collection, data analysis and management, energy scheduling and optimization, and energy monitoring and warning, so that the power distribution system 100 can detect, analyze, and manage energy by installing the energy management module 40, thereby achieving the goals of reducing power consumption, improving energy utilization efficiency, and ensuring the safety of energy supply. In this application, the energy management module 40 can obtain various data of the power distribution system 100 in real time, such as the total output power of the power supply modules 20, the status of the power supply modules 20, and the total power consumption of the power consumption modules 30, and process and analyze the obtained data to adjust the output power of at least some of the power supply modules 20, thereby achieving optimized energy allocation and utilization.

[0041] 1 to 5 , in some embodiments, the power supply module 20 can establish communication with the energy management module 40 via a wired connection or a wireless connection. A wired connection refers to the power supply module 20 electrically connecting to the energy management module 40 using a tangible medium such as a metal wire or an optical fiber to establish communication and thereby realize data signal transmission. A wireless connection refers to the power supply module 20 connecting to the energy management module 40 via a method such as Wi-Fi, 4G, or Bluetooth to establish communication and thereby realize data signal transmission. Specifically, when the power supply module 20 and the energy management module 40 establish communication, they can transmit data from the power supply module 20 to the energy management module 40, and the energy management module 40 analyzes the received data and outputs a control policy corresponding to the power supply module 20. In some embodiments, if the power supply modules 20 are power generation modules 27, the data of the power supply modules 20 may include the output power of each power generation module 27 or the operating status of each power generation module 27, and if the power supply modules 20 are energy storage modules 25, the data of the power supply modules 20 may include the output power of the energy storage modules 25, the power stored in the energy storage modules 25, and the operating status of the energy storage modules 25. For example, if the data of the power supply modules 20 includes the output power of each power supply module 20 (including the energy storage modules 25 and the power generation modules 27), the energy management module 40 can obtain the output power of each power supply module 20 to obtain the total output power of the power supply modules 20.

[0042] It should be noted that in some embodiments, the control policy may be protocol data that the energy management module 40 transmits to the power supply module 20, thereby enabling the energy management module 40 to adjust the output power of at least some of the power supply modules 20. In some examples, the control policy may be data pre-installed in the energy management module 40, and the energy management module 40 selects and outputs a corresponding control policy to the power supply module 20 based on the received data. In other examples, the control policy may be a control policy manually output by a user based on the data received by the energy management module 40.

[0043] 1 , in some embodiments, the energy management module 40 may be provided with a first communication unit 41, and the power supply module 20 may be provided with a second communication unit 29. The first communication unit 41 may be a module responsible for communicating with other devices in the energy management module 40, and the first communication unit 41 may receive signals transmitted by the other devices to the energy management module 40 and transmit the energy management module 40's signals to other devices that establish communication therewith. Correspondingly, the second communication unit 29 may be a module responsible for communicating with other devices in the power supply module 20, and the second communication unit 29 may receive signals transmitted by the other devices to the power supply module 20 and transmit the power supply module 20's signals to other devices that establish communication therewith. It should be noted that in some embodiments, the second communication unit 29 is provided in each power supply module 20. In other embodiments, the second communication unit 29 is provided in at least some of the power supply modules 20.

[0044] In some embodiments, the communication between the first communication unit 41 and the second communication unit 29 can be established by a wired connection, or the communication between the first communication unit 41 and the second communication unit 29 can be established by a wireless connection. When the communication between the first communication unit 41 and the second communication unit 29 is established, the energy management module 40 can obtain the output power of each power supply module 20 through the communication between the first communication unit 41 and the second communication unit 29. For example, the second communication unit 29 can transmit data of the power supply modules 20 to the first communication unit 41, so that the energy management module 40 can obtain the data of the power supply modules 20, i.e., the output power of each power supply module 20, through the first communication unit 41.

[0045] 2 , in some embodiments, the power distribution system 100 may include a first smart outlet 70, which in some embodiments is connected between the inverter module 60 and the grid connection bus 10, and is used to detect the output power of the first set of power supply modules 21 or the output power of a first type of power supply module in a corresponding second set of power supply modules 23. In some embodiments, the first smart outlet 70 is connected between a second type of power supply module in the second set of power supply modules 23 and the grid connection bus 10, and the first smart outlet 70 is used to detect the output power of the corresponding second type of power supply module. The energy management module 40 is further used to obtain each output power detected by the first smart outlet 70.

[0046] Specifically, in some embodiments, the energy management module 40 can establish communication with the first smart outlet 70 via a wired or wireless connection. A wired connection refers to the energy management module 40 connecting to the first smart outlet 70 using a tangible medium such as a metal wire or optical fiber to establish communication and thereby realize signal transmission. A wireless connection refers to the energy management module 40 connecting to the first smart outlet 70 via a method such as Wi-Fi, 4G, or Bluetooth to establish communication and thereby realize signal transmission. Specifically, when the energy management module 40 and the first smart outlet 70 establish communication, the energy management module 40 can obtain data from the first smart outlet 70. For example, the energy management module 40 can obtain the output power of the first set of power-supply modules 21 through the first smart outlet 70 to obtain the total output power of the first set of power-supply modules 21, and can obtain the output power of each power-supply module 20 in the second set of power-supply modules 23 through the first smart outlet 70 to obtain the total output power of the power-supply modules.

[0047] 3 , in some embodiments, the plurality of power supply modules 20 and the energy management module 40 can be simultaneously connected to each other through a communication unit and a smart outlet. Specifically, some of the plurality of power supply modules 20 are provided with a second communication unit 29, and the energy management module 40 is provided with a first communication unit 41. In this case, some of the plurality of power supply modules 20 establish a communication connection with the energy management module 40 through the first communication unit 41 and the second communication unit 29, and the other of the plurality of power supply modules 20 establish a communication connection with the energy management module 40 through the first smart outlet 70, thereby allowing the energy management module 40 to obtain data from each power supply module 20, for example, the output power of each power supply module 20. As shown in FIG. 3 , when the number of power supply modules 20 is six (including one solar power generation device, one energy storage power source, one solar power generation device, one wind power generation device, one diesel generator, and one energy storage power source), five of the six power supply modules 20 (including one solar power generation device, one energy storage power source, one solar power generation device, one wind power generation device, and one energy storage power source) establish a communication connection with the energy management module 40 via the first smart outlet 70, and the other one (including the diesel generator) is provided with a second communication unit 29, which establishes a communication connection with the first communication unit 41 of the energy management module 40 via the second communication unit 29.

[0048] Specifically, in some embodiments, the power consumption modules 30 may establish communication with the energy management module 40 via a wired or wireless connection. A wired connection refers to the power consumption modules 30 connecting to the energy management module 40 using a tangible medium such as a metal wire or an optical fiber to establish communication and thereby realize data signal transmission. A wireless connection refers to the power consumption modules 30 connecting to the energy management module 40 via a method such as Wi-Fi, 4G, or Bluetooth to establish communication and thereby realize data signal transmission. Specifically, when the power consumption modules 30 establish communication with the energy management module 40, data from the power consumption modules 30 may be transmitted to the energy management module 40, and the energy management module 40 may analyze the received data and output a control policy corresponding to the power consumption modules 30. The data from the power consumption modules 30 may include the power consumption of each power consumption module 30 or the operating status of each power consumption module 30.

[0049] 1 , in some embodiments, the power consuming module 30 is provided with a third communication unit 31. The third communication unit 31 can receive signals transmitted by other devices to the power consuming module 30 and transmit signals of the power consuming module 30 to other devices that establish communication therewith. It should be noted that in some embodiments, the third communication unit 31 is provided in each power consuming module 30. In other embodiments, the third communication unit 31 is provided in at least some of the power consuming modules 30.

[0050] In some embodiments, the communication between the first communication unit 41 and the third communication unit 31 can be established by a wired connection, or the communication between the first communication unit 41 and the third communication unit 31 can be established by a wireless connection. When the communication between the first communication unit 41 and the third communication unit 31 is established, the energy management module 40 can obtain the power consumption of each power consumption module 30 through the communication between the first communication unit 41 and the third communication unit 31. For example, the third communication unit 31 can transmit data of the power consumption modules 30 to the first communication unit 41, so that the energy management module 40 can obtain the data of the power consumption modules 30, i.e., the power consumption of each power consumption module 30, through the first communication unit 41.

[0051] Referring to FIG. 2 , in some embodiments, the power distribution system 100 may include a second smart outlet 80, which is electrically connected between the commercial power grid 50 and the power consumption modules 30, and which is used to detect the power consumption of the power consumption modules 30, and which the energy management module 40 is further used to obtain the power consumption of each power consumption module 30 detected by the second smart outlet 80.

[0052] Specifically, in some embodiments, the energy management module 40 establishes communication with the second smart outlet 80 via a wired or wireless connection. A wired connection refers to the energy management module 40 connecting to the second smart outlet 80 using a tangible medium such as a metal wire or optical fiber to establish communication and thereby realize signal transmission. A wireless connection refers to the energy management module 40 connecting to the second smart outlet 80 via a method such as Wi-Fi, 4G, or Bluetooth to establish communication and thereby realize signal transmission. Specifically, when the energy management module 40 and the second smart outlet 80 establish communication, the energy management module 40 can obtain data from the second smart outlet 80. The data from the second smart outlet 80 may include the power consumption of the power consumption module 30 and the operating status of the power consumption module 30.

[0053] 3 , in some embodiments, the power consumption modules 30 and the energy management module 40 can be simultaneously connected to each other through a communication unit and a smart outlet. Specifically, a third communication unit 31 is provided in a part of the power consumption modules 30, and a first communication unit 41 is provided in the energy management module 40. In this case, a part of the power consumption modules 30 establishes a communication connection with the energy management module 40 through the first communication unit 41 and the third communication unit 31, and another part of the power consumption modules 30 establishes a communication connection with the energy management module 40 through the second smart outlet 80, thereby allowing the energy management module 40 to obtain data from each power consumption module 30, for example, the output power of each power consumption module 30. As shown in FIG. 3, when the number of power consumption modules 30 is four (including one light bulb, one washing machine, one computer and one light bulb), three of the four power consumption modules 30 (including one light bulb, one washing machine and one light bulb) establish a communication connection with the energy management module 40 through the second smart outlet 80, and the remaining one (including one computer) is provided with a third communication unit 31, which establishes a communication connection with the first communication unit 41 of the energy management module 40 through the third communication unit 31.

[0054] As described above, referring to FIG. 1 , in some embodiments, the plurality of power supply modules 20 and the energy management module 40, and the power consumption module 30 and the energy management module 40, can all be communicatively connected via communication units (including the first communication unit 41, the second communication unit 29, and the third communication unit 31). Referring to FIG. 2 , in some embodiments, the plurality of power supply modules 20 and the energy management module 40, and the power consumption module 30 and the energy management module 40, can all be communicatively connected via smart outlets (including the first smart outlet 70 and the second smart outlet 80). Referring to FIG. 3 , in some embodiments, the plurality of power supply modules 20 and the energy management module 40 can simultaneously be communicatively connected via the communication units and the smart outlet, and correspondingly, the power consumption module 30 and the energy management module 40 can simultaneously be communicatively connected via the communication units and the smart outlet. 4, in some further embodiments, in the same power distribution system 100, the plurality of power supply modules 20 and the energy management module 40 may be communicatively connected only by the communication unit (including the first communication unit 41 and the second communication unit 29), and the power consumption module 30 and the energy management module 40 may be communicatively connected only by the smart outlet (the second smart outlet 80). Referring to FIG. 5, in some further embodiments, in the same power distribution system 100, the plurality of power supply modules 20 and the energy management module 40 may be communicatively connected only by the smart outlet (including the first smart outlet 70), and the power consumption module 30 and the energy management module 40 may be communicatively connected only by the communication unit (including the first communication unit 41 and the third communication unit 31).

[0055] Referring to Figures 1, 2, 3, 4 or 5, in some embodiments, the energy management module 40 may include a first energy management unit 43, which is an independent structure and electrically connected to the grid connection bus 10.

[0056] Specifically, in some embodiments, the first energy management unit 43 can be installed in an external environment and connected to devices such as the power supply module 20, the inverter module 60, the first smart outlet 70, and the second smart outlet 80 via a wired or wireless connection, thereby transmitting data from the devices such as the power supply module 20, the inverter module 60, the first smart outlet 70, and the second smart outlet 80 to the energy management module 40, whereby the first energy management unit 43 analyzes the received data and outputs a control policy. The first energy management unit 43 can be installed separately outside the power supply module 20, thereby improving the scalability of the power distribution system 100. For example, when devices in the power distribution system 100 (e.g., the power supply module 20, the inverter module 60, the first smart outlet 70, and the second smart outlet 80) need to be expanded, they can be used normally simply by establishing communication between the expanded device and the first energy management unit 43. In addition, the first energy management unit 43 is installed separately outside the power supply module 20 and can control and manage devices such as the power supply module 20, the inverter module 60, the first smart outlet 70, and the second smart outlet 80 independently, thereby improving the flexibility of the first energy management unit 43. The externally installed first energy management unit 43 can select and control and manage devices such as the appropriate power supply module 20 or inverter module 60 according to actual needs, thereby realizing rational energy allocation in the power distribution system 100.

[0057] 1, 2, 3, 4 or 5, in some embodiments, the energy management module 40 may include a second energy management unit 45, which is integrated into a first type of inverter module 61 electrically connected to the first set of power supply modules 21.

[0058] Specifically, in some embodiments, the second energy management unit 45 can be connected to devices such as the power supply module 20, the inverter module 60, the first smart outlet 70, and the second smart outlet 80 via a wired or wireless connection, and data from the devices such as the power supply module 20, the inverter module 60, the first smart outlet 70, and the second smart outlet 80 can be transmitted to the second energy management unit 45, so that the second energy management unit 45 can analyze the received data and output a control policy. The second energy management unit 45 can be integrated into one inverter module 60, which can avoid extra installation and wiring operations, thereby simplifying the structure of the power distribution system 100 and accelerating the data reception speed of the second energy management unit 45 and improving the response efficiency of the second energy management unit 45.

[0059] In some embodiments, when the energy management module 40 includes a first energy management unit 43 and a second energy management unit 45, the first energy management unit 43 is used to obtain the total output power of the first set of power supply modules 21 and the output power of each power supply module 20 in the second set of power supply modules 23 to obtain the total output power of the power supply modules 20, obtain the power consumption of each power consumption module 30 to obtain the total power consumption of the power consumption modules 30, and adjust the output power of at least some of the power supply modules 20 according to the total output power and the total power consumption. If the first energy management unit 43 is abnormal, the second energy management unit 45 takes over from the first energy management unit 43.

[0060] Specifically, in some embodiments, the first energy management unit 43 and the second energy management unit 45 can detect each other and determine whether the other's operating status is normal. For example, one of the first energy management unit 43 and the second energy management unit 45 transmits a detection signal to the other and receives a response signal from the other, which is used to determine whether the other of the first energy management unit 43 and the second energy management unit 45 is abnormal. When the second energy management unit 45 sends a detection signal to the first energy management unit 43 but does not receive a response signal from the first energy management unit 43, the second energy management unit 45 can determine that the first energy management unit 43 is abnormal (e.g., down), and can take over the operation of the first energy management unit 43. In this case, the second energy management unit 45 can obtain the total output power of the power supply modules 20 by obtaining the total output power of the first set of power supply modules 21 and the output power of each power supply module 20 in the second set of power supply modules 23, obtain the power consumption of each power consumption module 30 by obtaining the total power consumption of the power consumption modules 30, and adjust the output power of at least some of the power supply modules 20 according to the total output power and the total power consumption, thereby preventing the power distribution system 100 from being unable to operate when the first energy management unit 43 is abnormal, and improving the stability of the power distribution system 100.

[0061] 1 and 6, an embodiment of the present application provides a power distribution method, which is applied to the power distribution system 100 in any of the above embodiments. Step 01: obtaining the total output power of the power supply modules 21 in the first set and the output power of each power supply module 20 in the second set of power supply modules 23, and obtaining the total output power of the power supply modules 20; Step 03: obtaining the power consumption of each power consumption module 30 to obtain the total power consumption of the power consumption modules 30; and adjusting the output power of at least some of the power supply modules 20 according to the total output power and the total power consumption.

[0062] The power supply modules 20 (including the first set of power supply modules 21 and the second set of power supply modules 23) and the power consumption modules 30 in this embodiment are substantially the same as the power supply modules 20 (including the first set of power supply modules 21 and the second set of power supply modules 23) and the power consumption modules 30 in the above embodiment, and will not be repeated here. Specifically, the energy management module 40 is used to obtain the output power of each power supply module 20 (including the energy storage module 25 and the power generation module 27) to obtain the total output power of the power supply modules 20, obtain the power consumption of each power consumption module 30 to obtain the total power consumption of the power consumption modules 30, and adjust the output power of at least some of the power supply modules 20 according to the total output power and total power consumption.

[0063] Specifically, when the energy management module 40 includes a first energy management unit 43 and a second energy management unit 45, the first energy management unit 43 is used to perform the above-mentioned power distribution method, and when the first energy management unit 43 is abnormal, the second energy management unit 45 takes over the operation of the first energy management unit 43, that is, the second energy management unit 45 is used to perform the above-mentioned power distribution method.

[0064] In the power distribution method of the present embodiment, the total output power of the power supply modules 20 is obtained by obtaining the total output power of the first set of power supply modules 21 and the output power of each power supply module 20 in the second set of power supply modules 23, and the power consumption of each power consumption module 30 is obtained to obtain the total power consumption of the power consumption modules 30. The output power of at least some of the power supply modules 20 is adjusted according to the total output power and the total power consumption, so that the total output power of the power supply modules 20 can be adaptively adjusted according to changes in the power consumption modules 30, and the normal operation of the power distribution system 100 is further ensured.

[0065] In some embodiments, the power generation module 27 includes an adjustable power generation module. Specifically, referring to FIG. 1 , in some embodiments, when the power generation module 27 is a diesel generator, a solar power generation device, or a wind power generation device, the diesel generator is an adjustable power generation module, while the solar power generation device and the wind power generation device are non-adjustable power generation modules. Generally, the solar power generation device and the wind power generation device generally use a method to maximize output power when outputting power, and therefore, both the solar power generation device and the wind power generation device are non-adjustable power generation modules. It should be noted that in some embodiments, the diesel generator can increase its output power by, for example, increasing the amount of fuel supplied, increasing the amount of intake air, or increasing the cylinder pressure, or can decrease its output power by, for example, decreasing the amount of fuel supplied, decreasing the amount of intake air, or decreasing the cylinder pressure.

[0066] 1 and 7, in some embodiments, the step 05 of adjusting the output power of at least some of the power supply modules 20 according to the total output power and the total power consumption includes: If the total output power is less than the total power consumption, the method further includes step 051 of increasing the output power of the energy storage module 25 and / or increasing the output power of the adjustable power generation module.

[0067] In some embodiments, the energy management module 40 is further used to increase the output power of the energy storage module 25 and / or increase the output power of the adjustable power generation module if the total output power is less than the total power consumption.

[0068] The energy storage module 25 in this embodiment is substantially the same as the energy storage module 25 in the above embodiment, and will not be described again here. Specifically, when the total output power of the power supply modules 20 is smaller than the total power consumption of the power consumption modules 30, the total output power of the power supply modules 20 cannot meet the power consumption demands of the power consumption modules 30. In this case, at least some of the power consumption modules 30 cannot operate normally. Therefore, the energy management module 40 can analyze the total output power and the total power consumption and then send a control policy to the energy storage module 25 and / or the adjustable power generation module(s), so as to increase the output power of the energy storage module 25 and / or increase the output power of the adjustable power generation module(s). It should be understood that both the first set of power supply modules 21 and the second set of power supply modules 23 may include an energy storage module 25 and an adjustable power generation module(s). When the first set of power supply modules 21 and the second set of power supply modules 23 both include an energy storage module 25 and an adjustable power generation module, if the total output power is less than the total power consumption, the energy management module 40 increases the output power of the energy storage module 25 in the first set of power supply modules 21 and / or increases the output power of the adjustable power generation module in the first set of power supply modules 21, and increases the output power of the energy storage module 25 in the second set of power supply modules 23 and / or increases the output power of the adjustable power generation module in the second set of power supply modules 23.

[0069] In some embodiments, if the output power of the solar power generation device and the wind power generation device is adjustable, the solar power generation device and the wind power generation device can be applied to the power distribution method of the present application as an adjustable power generation module.

[0070] In one embodiment, when the total output power is less than the total power consumption, the energy management module 40 can increase the output power of the energy storage modules 25 (including the energy storage modules 25 in the first set of power supply modules 21 and / or the energy storage modules 25 in the second set of power supply modules 23) so that the sum of the total output power of the power generation modules 27 and the output power of the energy storage modules 25 is approximately equal to the total power consumption of the power consumption modules 30, thereby enabling the power distribution system 100 to meet the power consumption needs of the power consumption modules 30 while achieving the effects of self-generation and self-use and reducing the power consumption cost of the power distribution system 100. It can be understood that when the energy management module 40 increases the output power of the energy storage modules 25 so that the sum of the total output power of the power generation modules 27 and the output power of the energy storage modules 25 is equal to the total power consumption of the power consumption modules 30, the power distribution system 100 is in an optimal state of self-generation and self-use, and the energy allocation of the power distribution system 100 is optimized. Therefore, by increasing the output power of the energy storage module 25, when the sum of the total output power of the power generation modules 27 and the output power of the energy storage module 25 is slightly greater than the total power consumption of the power consumption modules 30, the energy management module 40 controls the energy storage module 25 to transmit the excess power via the grid connection bus 10 to the utility power grid 50 electrically connected to the grid connection bus 10, thereby making the total output power of the power supply modules 20 equal to the total power consumption of the power consumption modules 30; and by increasing the output power of the energy storage module 25, when the sum of the total output power of the power generation modules 27 and the output power of the energy storage module 25 is slightly less than the total power consumption of the power consumption modules 30, the energy management module 40 continues to increase the output power of the energy storage module 25, thereby making the total output power of the power supply modules 20 equal to the total power consumption of the power consumption modules 30.

[0071] In another embodiment, when the total output power is less than the total power consumption, the energy management module 40 can increase the output power of the adjustable power generation modules (including the adjustable power generation modules in the first set of power supply modules 21 and / or the adjustable power generation modules in the second set of power supply modules 23) so that the sum of the total output power of the power generation modules 27 and the output power of the energy storage module 25 is approximately equal to the total power consumption of the power consumption modules 30, thereby enabling the power distribution system 100 to meet the power consumption needs of the power consumption modules 30 while achieving the effects of self-generation and self-use and reducing the power consumption costs of the power distribution system 100. For example, the energy management module 40 can increase the output power of the diesel generator so that the sum of the total output power of the power generation modules 27 and the output power of the energy storage module 25 is approximately equal to the total power consumption of the power consumption modules 30. It can be understood that the energy management module 40 increases the output power of the adjustable power generation modules so that when the sum of the total output power of the power generation modules 27 and the output power of the energy storage modules 25 is equal to the total power consumption of the power consumption modules 30, the power distribution system 100 is in an optimized state of self-generation and self-use, and the energy allocation of the power distribution system 100 is optimized.Therefore, when the energy management module 40 increases the output power of the adjustable power generation modules so that the sum of the total output power of the power generation modules 27 and the output power of the energy storage modules 25 is slightly greater than the total power consumption of the power consumption modules 30, the energy management module 40 controls the adjustable power generation modules to transmit excess power via the grid connection bus 10 to the utility power grid 50 electrically connected to the grid connection bus 10, or via the grid connection bus 10 to the energy storage modules 25 electrically connected to the grid connection bus 10, so as to achieve that the total output power of the power supply modules 20 is equal to the total power consumption of the power consumption modules 30; when the energy management module 40 increases the output power of the adjustable power generation modules so that the sum of the total output power of the power generation modules 27 and the output power of the energy storage modules 25 is slightly less than the total power consumption of the power consumption modules 30, the energy management module 40 can continue to increase the output power of the adjustable power generation modules so as to achieve that the total output power of the power supply modules 20 is equal to the total power consumption of the power consumption modules 30.

[0072] Furthermore, in one embodiment, when the total output power is less than the total power consumption, the energy management module 40 can increase the output power of the energy storage module 25 and can also increase the output power of the adjustable power generation module, so that the sum of the total output power of the power generation module 27 and the output power of the energy storage module 25 is approximately equal to the total power consumption of the power consumption modules 30, thereby enabling the power distribution system 100 to meet the power consumption demands of the power consumption modules 30 while achieving the effects of self-generation and self-use, and reducing the power consumption costs of the power distribution system 100.

[0073] 1 and 8, in some embodiments, the power distribution method further includes step 07, in which the utility grid 50 controls the power supply to the power consumption modules 30 if the total output power is less than the total power consumption.

[0074] In some embodiments, the grid connection bus 10 is electrically connected to a utility power grid 50. The energy management module 40 is further adapted to control the utility power grid 50 supplying power to the power consumption modules 30 when the total output power is less than the total power consumption.

[0075] Because the adjustable output power of the adjustable power generation modules has a maximum value and the power stored in the energy storage module 25 is limited, the total output power of the power supply modules 20 also has a maximum value. For example, when the power stored in the energy storage module 25 is depleted, the maximum total output power of the power supply modules 20 is the sum of the maximum output power of the adjustable power generation modules and the total output power of the non-adjustable power generation modules. When the total output power of the power supply modules 20 is at its maximum value, the total output power of the power supply modules 20 is also less than the total power consumption of the power consumption modules 30. That is, if the total output power of the power supply modules 20 does not meet the power consumption demand of the power consumption modules 30, the power consumption modules 30 will not be able to operate normally.

[0076] Specifically, when the total output power (including the total output power of the energy storage modules 25 and the total output power of the power generation modules 27) is less than the total power consumption of the power consumption modules 30, in order to ensure the normal operation of the power consumption modules 30, the energy management module 40 controls the power supply from the commercial power grid 50 to the power consumption modules 30, so that the sum of the total output power of the power supply modules 20 and the output power supplied by the city power module to the power consumption modules 30 is equal to the total power consumption of the power consumption modules 30, thereby ensuring the normal operation of the power consumption modules 30 and simultaneously optimizing the energy allocation of the power distribution system 100.

[0077] 1 and 9, in some embodiments, a power distribution method includes: Step 08: when the total output power of the power supply modules 20 is greater than the total power consumption, controlling the energy storage module 25 to stop supplying power to the power consumption module 30; The method further includes step 09 of controlling the power generation modules 27 to feed power to the energy storage module 25 and / or the commercial power grid 50, or reducing the power generation power of the adjustable power generation modules, if the total output power of the power generation modules 27 is greater than the total power consumption.

[0078] In some embodiments, the energy management module 40 is further used to control the energy storage module 25 to stop supplying power to the power consumption module 30 when the total output power of the power supply modules 20 is greater than the total power consumption, and to control the power generation module 27 to supply power to the energy storage module 25 and / or the utility grid 50, or to reduce the power generation of the adjustable power generation module, when the total output power of the power generation module 27 is greater than the total power consumption.

[0079] Specifically, in some embodiments, if the total output power of the power supply module 20 (including the energy storage module 25 and the power generation module 27) is greater than the total power consumption of the power consumption modules 30, the output power of the power supply module 20 will exceed the power consumption demand of the power consumption modules 30. In this case, damage to at least some of the power consumption modules 30 may occur. Therefore, the energy management module 40 can analyze the total output power and the total power consumption and then send a control policy to the energy storage module 25 and the power generation module 27, controlling the energy storage module 25 to stop supplying power to the power consumption modules 30. If the total output power of the power generation modules 27 is greater than the total power consumption, the power generation module 27 can control the power supply to the energy storage module 25 and / or the utility grid 50, or reduce the power generation of the adjustable power generation module.

[0080] If the total output power of the power supply modules 20 (including the energy storage modules 25 and the power generation modules 27) is greater than the total power consumption of the power consumption modules 30, the energy management module 40 controls the stopping of power supply from the energy storage modules 25 (including the energy storage modules 25 in the first set of power supply modules 21 and / or the energy storage modules 25 in the second set of power supply modules 23) to the power consumption modules 30, so as to store power for home use. If the total output power of the power generation modules 27 is greater than the total power consumption after the energy storage modules 25 stop supplying power to the power consumption modules 30, the energy management module 40 can further control the power supply of the power generation modules 27 to the energy storage modules 25 and / or the commercial power grid 50, so as to make the total output power of the power generation modules 27 equal to the total power consumption after the power supply from the energy storage modules 25 to the power consumption modules 30 is stopped. It should be noted that in some embodiments, the power generation module 27 can feed power to the energy storage module 25 via the grid connection bus 10, storing the power in the energy storage module 25 and preparing it for use, or the power generation module 27 can feed power to the utility grid 50 via the grid connection bus 10 and realizing revenue by selling excess power to the utility, or the power generation module 27 can feed power to both the energy storage module 25 and the utility grid 50 via the grid connection bus 10. For example, the power generation module 27 feeds power to the energy storage module 25 via the grid connection bus 10, and when the power that the energy storage module 25 can store reaches a limit (maximum), the power generation module 27 can feed power to the utility grid 50 via the grid connection bus 10.

[0081] It can be understood that in some embodiments, when the total output power of the power supply modules 20 is greater than the total power consumption, the energy management module 40 controls the energy storage modules 25 to supply power to the power consumption modules 30; when the total output power of the power generation modules 27 is less than the total power consumption of the power consumption modules 30 after controlling the stopping of power supply from the energy storage modules 25 to the power consumption modules 30, the energy management module 40 can restart the energy storage modules 25 and increase the output power of the energy storage modules 25 and / or increase the output power of the adjustable power generation modules, so that the sum of the total output power of the power generation modules 27 and the output power of the energy storage modules 25 is approximately equal to the total power consumption of the power consumption modules 30, thereby enabling the power distribution system 100 to meet the power consumption needs of the power consumption modules 30 while achieving the effects of self-generation and self-use and reducing the power consumption costs of the power distribution system 100. The specific manner in which the energy management module 40 increases the output power of the energy storage modules 25 and / or the output power of the adjustable power generation modules is approximately the same as in the above embodiment and will not be repeated here.

[0082] In some embodiments, when the power generation modules 27 supply power to the power consumption modules 30 and the total output power of the power generation modules 27 is greater than the total power consumption, the energy management module 40 is further used to control the power supply from the power generation modules 27 to the energy storage module 25 and / or the commercial power grid 50. The specific manner in which the energy management module 40 controls the power supply from the power generation modules 27 to the energy storage module 25 and / or the commercial power grid 50 is substantially the same as in the above embodiment, and will not be repeated here.

[0083] In the description herein, references such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the specific features, structures, materials, or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In the description herein, the terms "exemplary" and "exemplary" 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. Furthermore, if there is no conflict between them, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described herein.

[0084] Any process or method description in a flowchart or otherwise described herein can be understood as representing one or more modules, fragments, or portions comprising executable instruction code for implementing custom logic functions or process steps, and the scope of the preferred embodiments of the present application includes other implementations, which may not perform the functions in the order shown or discussed, including performing functions essentially simultaneously or in reverse order based on the functionality involved, as should be understood by those skilled in the art.

[0085] The logic and / or steps shown in flowcharts or otherwise described herein can be considered, for example, as an ordered listing of executable instructions for implementing logical functions, and can be tangibly embodied in any computer-readable medium for use in or in conjunction with an instruction execution system, apparatus, or device (e.g., a computer-based system, such as a system including a processor or a system that reads instructions from an instruction execution system, device, or device and executes the instructions). For purposes of this specification, a "computer-readable medium" may be any device that contains, stores, communicates, propagates, or transmits a program, and can be used in or in conjunction with an instruction execution system, device, or device. More specific examples (a non-exhaustive list) of computer-readable media include an electrical connection having one or more wires (electronic devices), a portable computer disk cartridge (disk drive), random access memory (RAM), read-only memory (ROM), erasable editable read-only memory (EPROM or flash memory), fiber optic devices, and portable disk read-only memory (CD-ROM). The computer readable medium may also be paper or other suitable medium on which the program is printed, for example by optically scanning the paper or other suitable medium and then editing, interpreting or processing in any other suitable manner as required to obtain the program in electronic form, which is then stored in computer memory.

[0086] It should be understood that each part of the present application can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in a memory and executed by an appropriate instruction execution system. When implemented in hardware, as with other embodiments, the implementation can be implemented in any one or combination of technologies known in the art, such as a discrete logic circuit having logic gate circuits for implementing logic functions on data signals, a dedicated integrated circuit having appropriate combinational logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0087] Those skilled in the art will understand that all or part of the steps in the above method embodiments can be achieved by instructing relevant hardware through a program. The program can be stored in a computer-readable storage medium, and when the program is executed, it will perform one or a combination of the steps of the method embodiments. Note that each functional unit in each embodiment of the present application may be integrated into a single processing module, each unit may exist physically independently, or two or more units may be integrated into a single module. The integrated module may be implemented in the form of hardware or a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may be stored in a computer-readable storage medium.

[0088] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is limited only by the claims and their equivalents.

[0089] [CROSS-REFERENCE TO RELATED APPLICATIONS] This application claims priority to and the benefit of patent application number 202310979971.4, filed with the State Intellectual Property Office of China on August 3, 2023, the entire text of which is incorporated herein by reference.

Claims

1. 1. An electrical distribution system comprising: a grid connection bus for electrically connecting to the power consuming modules; an inverter module including a first type inverter module and a second type inverter module, the first type inverter module and the second type inverter module both being electrically connected to the grid connection bus; a plurality of power supply modules used to supply power to the power consumption modules, the plurality of power supply modules comprising a first set of power supply modules and a second set of power supply modules, the first set of power supply modules comprising at least two of the power supply modules, one inverter module of the first type connected between the first set of power supply modules and the grid connection bus, at least some of the power supply modules of the second set of power supply modules being directly electrically connected to the grid connection bus, and / or one inverter module of the second type connected between at least some of the power supply modules of the second set of power supply modules and the grid connection bus; an energy management module electrically connected to the grid connection bus, the energy management module being used to obtain a total output power of the power supply modules in the first set and an output power of each power supply module in the second set to obtain a total output power of the power supply modules, obtain a power consumption of each power consumption module to obtain a total power consumption of the power consumption modules, and adjust the output power of at least some of the power supply modules in accordance with the total output power and the total power consumption.

2. The plurality of power supply modules include an energy storage module and a power generation module, the power generation module includes an adjustable power generation module, and the energy management module further comprises: The power distribution system of claim 1 , used to increase the output power of the energy storage modules and / or increase the output power of the adjustable power generation modules when the total output power is less than the total power consumption.

3. 2. The power distribution system of claim 1, wherein the grid connection bus is connected to a utility power grid, and the energy management module is further used to control power feeding from the utility power grid to the power consumption modules when the total output power is less than the total power consumption.

4. The plurality of power supply modules include an energy storage module and a power generation module, the power generation module includes an adjustable power generation module, and the energy management module further comprises: Controlling the stopping of power supply from the energy storage module to the power consumption module when the total output power of the power supply modules is greater than the total power consumption; and 2. The power distribution system of claim 1, wherein the power supply from the power generation modules to the energy storage module and / or the commercial power grid is controlled, or the power generation of the adjustable power generation modules is reduced, when the total output power of the power generation modules is greater than the total power consumption.

5. the energy management module includes a first energy management unit, the first energy management unit being a stand-alone structure and electrically connected to the grid connection bus; and / or 2. The power distribution system of claim 1, wherein the energy management module includes a second energy management unit, the second energy management unit being integrated into the first type of inverter module electrically connected to the first set of power supply modules.

6. the second set of power supply modules includes a first type of power supply module, the first type of power supply module is used to generate DC power, and the first type of power supply module includes an energy storage module; 2. The power distribution system according to claim 1, wherein a first type inverter module is connected between each of the first type power supply modules and the grid connection bus, the first type inverter module is used to convert DC power generated by the first type power supply module into AC power and transmit the AC power via the grid connection bus to the commercial power grid and / or the power consumption modules, and the first type inverter module is also used to convert AC power transmitted from the commercial power grid via the grid connection bus into DC power and store the DC power in the energy storage module.

7. 7. The power distribution system of claim 6, wherein the second set of power supply modules includes a second type of power supply module, the second type of power supply module being directly electrically connected to the grid connection bus.

8. the power distribution system further comprises a first smart outlet, the first smart outlet is electrically connected between the first type inverter module and the grid connection bus, the first smart outlet is used to detect the output power of the first set of power supply modules or the output power of a corresponding first type power supply module; or the first smart outlet is electrically connected between the second type power supply module and the grid connection bus, the first smart outlet is used to detect the output power of a corresponding second type power supply module, the energy management module is further used to obtain each output power detected by the first smart outlet; and / or 8. The power distribution system of claim 7, further comprising a second smart outlet, the second smart outlet electrically connected between the commercial power grid and the power consuming modules, the second smart outlet used to detect power consumption of the power consuming modules, and the energy management module further used to obtain power consumption of each of the power consuming modules detected by the second smart outlet.

9. The energy management module is provided with a first communication unit, the power supply module is provided with a second communication unit, and the energy management module acquires the output power of each of the power supply modules through communication between the first communication unit and the second communication unit; and / or 2. The power distribution system of claim 1, wherein the energy management module is provided with a first communication unit, the power consumption module is provided with a third communication unit, and the energy management module acquires the power consumption of each of the power consumption modules through communication between the first communication unit and the third communication unit.

10. 2. The power distribution system of claim 1, wherein when the energy management module includes a first energy management unit and a second energy management unit, the first energy management unit is configured to obtain a total output power of the power supply modules by obtaining a total output power of the power supply modules from the first set of power supply modules and an output power of each of the power supply modules in the second set of power supply modules; obtain a total power consumption of the power consumption modules from the power consumption modules; adjust the output power of at least some of the power supply modules according to the total output power and the total power consumption; and when the first energy management unit is abnormal, the second energy management unit takes over from the first energy management unit.

11. a power distribution method for a power distribution system, the power distribution system comprising a grid connection bus, an inverter module, a plurality of power supply modules, and an energy management module, the grid connection bus being used for electrically connecting to power consumption modules, the inverter modules including a first type inverter module and a second type inverter module, the first type inverter module and the second type inverter module both being electrically connected to the grid connection bus, the plurality of power supply modules being used for supplying power to the power consumption modules, the plurality of power supply modules including a first set of power supply modules and a second set of power supply modules, the first set of power supply modules including at least two of the power supply modules, one of the first type inverter module connected between the first set of power supply modules and the grid connection bus, each of the power supply modules in the second set of power supply modules being electrically connected directly to the grid connection bus, and / or one of the second type inverter module connected between each of the power supply modules in the second set of power supply modules and the grid connection bus, the power distribution method comprising: obtaining a total output power of the first set of power supply modules and an output power of each power supply module in the second set of power supply modules to obtain a total output power of the power supply modules; obtaining a total power consumption of the power consumption modules by obtaining a power consumption of each of the power consumption modules; adjusting the output power of at least some of the power supply modules according to the total output power and the total power consumption.

12. The plurality of power supply modules include energy storage modules and power generation modules, and the power generation modules include adjustable power generation modules, and the step of adjusting the output power of at least some of the power supply modules according to the total output power and the total power consumption includes:

12. The method of claim 11, comprising increasing the output power of the energy storage modules and / or increasing the output power of the adjustable power generation modules if the total output power is less than the total power consumption.

13. The power distribution method includes: The power distribution method of claim 11 , further comprising controlling power feeding from a utility grid to the power consumption modules when the total output power is less than the total power consumption.

14. The plurality of power supply modules include an energy storage module and a power generation module, the power generation module includes an adjustable power generation module, and the power distribution method further comprises: controlling a cutoff of power supply from the energy storage module to the power consumption module when the total output power of the power supply modules is greater than the total power consumption; and 12. The power distribution method of claim 11, comprising controlling power feeding from the power generation modules to the energy storage module and / or the utility grid, or reducing power generation of the adjustable power generation modules, when a total output power of the power generation modules is greater than the total power consumption.

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