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 particularly to a power distribution system and a power distribution method.

Background Art

[0002] Currently, the power distribution system adopts a combined method of centralized energy storage and distributed energy storage to meet the power supply demand of the system itself, prevent the entire power distribution system from stopping operating when a failure occurs in the centralized energy storage, and reduce the dependence on the power grid of the power distribution system. Distributed energy storage may include solar power generation, wind power generation, diesel power generation, and energy storage devices, etc. Both solar power generation and wind power generation are at maximum output, that is, the output power is generally not adjusted, and the output power of diesel power generation and energy storage devices is adjustable. Generally, the power distribution system can supply power to power-consuming devices by a power supply module (including centralized energy storage and distributed energy storage). However, when the power distribution system operates, if the power supply power of the power supply module and the operating status or the number of connections of the power consumption module change, the power distribution system cannot adaptively adjust the power supply module accordingly, thereby affecting the normal operation of the power distribution system.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Embodiments of this application provide a power distribution system and a power distribution method.

Means for Solving the Problems

[0004] The power distribution system according to an embodiment of the present invention comprises 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 the power consumption modules. The inverter module includes 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 are used to supply power to the power consumption modules, and the plurality of power supply modules includes a first set of power supply modules and a second set of power supply modules, the first set of power supply modules includes at least two of the power supply modules, one first type inverter module is connected between the first set of power supply modules and the grid connection bus, at least some of the power supply modules in the second set of power supply modules are directly electrically connected to the grid connection bus, and / or one 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 to obtain the total output power of the first set of power supply modules and the output power of each of the second set of power supply modules to obtain the total output power of the power supply modules, to obtain the power consumption of each of the power consumption modules to obtain the total power consumption of the power consumption modules, and to adjust 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 power supply modules include energy storage modules and power generation modules, the power generation modules include adjustable power generation modules. The energy management module further increases the output power of the energy storage modules and / or 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 commercial power grid. The energy management module is further used to control the supply of power from the commercial power grid to the power consumption module when the total output power is less than the total power consumption.

[0007] In some embodiments, the power supply modules include energy storage modules and power generation modules, the power generation modules include adjustable power generation modules. The energy management modules are further used to control the cessation of power supply from the energy storage modules to the power consumption modules when the total output power of the power supply modules is greater than the total power consumption, and to control the power supply from the power generation modules to the energy storage modules and / or the commercial power grid, or to reduce the power generated by the adjustable power generation modules, when the 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, which is a standalone unit and electrically connected to the grid connection bus.

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

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

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

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

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

[0016] In some embodiments, if 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 the total output power of the first set of power supply modules and the output power of each of the power supply modules in the second set of power supply modules to obtain the total output power of the power supply modules, to obtain the power consumption of each of the power consumption modules to obtain the total power consumption of the power consumption modules, and to 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 if the first energy management unit is malfunctioning, the second energy management unit takes over from the first energy management unit.

[0017] The power distribution method according to an embodiment of the present invention is applied to a power distribution system comprising a grid connection bus, an inverter module, a plurality of power supply modules, and an energy management module, wherein the grid connection bus is used to electrically connect to power consumption modules, the inverter module includes 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 are used to supply power to the power consumption modules, the plurality of power supply modules includes a first set of power supply modules and a second set of power supply modules, the first set of power supply modules includes at least two of the power supply modules, one of the first type inverter modules is 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 is directly electrically connected to the grid connection bus, and / or one of the second type inverter modules is 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 the total output power of the first set of power supply modules and the output power of each of the power supply modules in the second set of power supply modules to obtain the total output power of the power supply modules; obtaining the power consumption of each of the power consumption modules to obtain the 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 power supply modules include energy storage modules and power generation modules, and the power generation modules include adjustable power generation modules. The step of adjusting the output power of at least some of the power supply modules in accordance with the total output power and the total power consumption includes increasing the output power of the energy storage module and / or increasing the output power of the adjustable power generation module if the total output power is less than the total power consumption.

[0019] In some embodiments, the power distribution method further includes the step of controlling the supply of power from the commercial power grid to the power consuming module when the total output power is less than the total power consumption.

[0020] In some embodiments, the 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 the steps of controlling the cessation of power supply from the energy storage modules to the power consumption modules if the total output power of the power supply modules is greater than the total power consumption, and controlling the power supply from the power generation modules to the energy storage modules and / or the commercial power grid, or reducing the power generated by the adjustable power generation modules, if the total output power of the power generation modules is greater than the total power consumption.

[0021] In the power distribution system and power distribution method according to the embodiment of the present invention, the total output power of the power supply modules is obtained by acquiring 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 total power consumption of the power consumption modules is obtained by acquiring the power consumption of each power consumption module. By adjusting the output power of at least some of the power supply modules according to the total output power and total power consumption, the total output power of the power supply modules can be adaptively adjusted in response to changes in the power consumption modules, and furthermore, the normal operation of the power distribution system is ensured.

[0022] Additional aspects and advantages of the embodiments of the present application are partially shown in the following description, partially become apparent from the following description, or can be understood through the 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 easily understood from the description of the embodiments combined with the following drawings. [Brief explanation of the drawing]

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

Embodiments for Carrying out the Invention

[0025] Hereinafter, the embodiments of the present application will be further described in combination with the drawings. In all the drawings, the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. Also, hereinafter, the embodiments of the present application described with reference to the drawings are exemplary and are only used for interpreting the embodiments of the present application and should not be understood as a limitation to the present application.

[0026] Referring to Figure 1, the power distribution system 100 of the embodiment of the present invention comprises 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, both of which are electrically connected to the grid connection bus 10. Multiple power supply modules 20 are used to supply power to a power consumption module 30, and the multiple 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 type 1 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 type 2 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 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, to obtain the power consumption of each power consumption module 30 to obtain 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 total power consumption. It should be noted that the power distribution system 100 in this embodiment of the present invention may be, but is not limited to, a household power distribution system, a school power distribution system, or a factory power distribution system.

[0027] In the power distribution system 100 according to the embodiment of the present invention, the total output power of the power supply modules 20 can be adaptively adjusted in response to changes in the power consumption modules 30 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 by obtaining the power consumption of each power consumption module 30 to obtain the total power consumption of the power consumption modules 30, and by adjusting the output power of at least some of the power supply modules 20 according to the total output power and total power consumption, the total output power of the power supply modules 20 can be adaptively adjusted in response to changes in the power consumption modules 30, and furthermore, the normal operation of the power distribution system 100 can be ensured.

[0028] Referring to Figure 1, in some embodiments, the grid connection bus 10 is a circuit structure for power transmission. The grid connection bus 10 can be manufactured from a metallic conductive material. In this application, the grid connection bus 10 may include an AC power transmission circuit, that is, 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 the power generated by the power supply modules 20 to the power consumption modules 30, ensuring the normal operation of the power consumption modules 30.

[0029] The first type inverter module 61 may be a hybrid inverter, also known as a multimode inverter, which is a device that combines the functions of a grid-connected inverter and an off-grid inverter. The second type inverter module 63 may be an inverter, which is a converter that converts DC power to constant frequency constant voltage or frequency voltage modulated AC power (generally 220V, 50Hz sine wave). In this application, the inverter converts the 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 module 20 and / or the commercial power grid 30. In this application, the inverter module 60 (including the first type inverter module 61 and the second type inverter module 63) can convert the 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 transmit the AC power to the commercial power grid 50 and / or the power consumption module 30. As a result, 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 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 obtains power from the commercial power grid 50 to meet its power consumption and ensures the normal operation of the power consumption module 30.

[0030] Furthermore, the inverter module 60 (including the first type inverter module 61 and the second type inverter module 63) is 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, if the electricity rates of the commercial power grid 50 are relatively low and the power generated by the power generation module 27 is less than or equal to 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] Multiple 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 power generation modules 27 are each electrically connected to the grid connection bus 10, so that the energy storage modules 25 and power generation modules 27 can transmit power to the power consumption modules 30 via the grid connection bus 10. In addition, the power generation modules 27 can 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 demand of the power consumption modules 30, and at the same time transmit and store excess power to the energy storage modules 25. It should be noted that the power supply modules 20 in the first set of power supply modules 21 may consist only of energy storage modules 25, only of power generation modules 27, or may include both energy storage modules 25 and power generation modules 27. Similarly, the power supply module 20 in the second set of power supply modules 23 may consist only of the energy storage module 25, or only of the power generation module 27, or it may include both the energy storage module 25 and the power generation module 27 at the same time.

[0032] Specifically, the energy storage module 25 may also be an energy storage power source, in which 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, lead-acid batteries, nickel-metal hydride batteries, or lithium-ion batteries. 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. If 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 power generated by the wind power generation device, and the power generated by the diesel generator. A solar power generation device is a power generation device that directly converts solar radiation energy into electricity by utilizing the photovoltaic effect of a photovoltaic cell, a wind power generation device is a power generation device that generates electricity by utilizing wind energy, and a diesel generator is a power machine that uses diesel or the like as fuel and uses a diesel engine as the prime mover to generate electricity, and the generator can convert other forms of energy into electricity.

[0033] Referring to Figure 1, in some embodiments, the multiple power supply modules 20 include a first set of power supply modules 21 and a second set of power supply modules 23, with the first set of power supply modules 21 containing at least two power supply modules 20. When the multiple power supply modules 20 include a first set of power supply modules 21 and a 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 the 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, combining the components shown in Figure 1, the first set of power supply modules 21 may include one energy storage power source 25 and one photovoltaic power generation device 27, both of which are electrically connected to the same first type inverter module 61. As a result, the power generated by the energy storage power source 25 and the photovoltaic power generation device 27 passes through the first type inverter module 61, converts DC to AC, and is then transmitted to the grid connection bus 10.

[0035] The second set of power supply modules 23 may include multiple power supply modules 20 (including an energy storage module 25 and a power generation module 27). If the current generated in each power supply module 20 in the second set of power supply modules 23 is alternating current, each power supply module 20 in the second set of power supply modules 23 is electrically connected directly to the grid connection bus 10. If the current generated in each power supply module 20 in the second set of power supply modules 23 is direct current, one type 2 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 direct current generated in each power supply module 20 in the second set of power supply modules 23 passes through the type 2 inverter module 63 to be converted to alternating current before being transmitted to the grid connection bus 10.

[0036] One point that needs to be explained is that in some embodiments, when the second set of power supply modules 23 includes an energy storage power source, a photovoltaic power generator, a wind power generator, and a diesel generator, each of the multiple power supply modules 20 in the second set of power supply modules 23 is electrically connected to the grid connection bus 10, that is, the energy storage power source, photovoltaic power generator, wind power generator, and diesel generator are all individually connected to the grid connection bus 10, and the power generated by each individually is supplied to the power consumption module 30 via the grid connection bus 10, while the first set of power supply modules 21 includes an energy storage power source, a photovoltaic power generator, and a diesel generator. If the system includes at least two of the wind turbine and diesel generator, the power generated by the energy storage power source, the photovoltaic power source, the wind turbine and diesel generator, and at least two of the other devices 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 photovoltaic power source are both electrically connected to the same device (e.g., a first-class inverter module 61), and the first-class inverter module 61 converts DC to AC before transmitting the power generated by the energy storage power source and the photovoltaic power source 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 power supply module and a second type power supply module. The first type power supply module is used to generate DC power and must be electrically connected to the grid connection bus 10 by a second type inverter module 63, and the energy storage power supply 25, the photovoltaic power generation device 27 and the wind power generation device 27 all belong to the first type power supply module. The second type 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 power supply module.

[0038] Specifically, in some embodiments, the current directly generated by the first type of power supply module is DC power, and therefore the DC power generated by the first type of power supply module needs to be converted to AC power in order to transmit it to the commercial power grid 50 and / or the power consumption module 30. The current directly generated by the second type of power supply module is AC power, and therefore the second type of power supply module is directly electrically connected to the grid connection bus 10, that is, the current generated by the second type of power supply module can be directly transmitted to the commercial power grid 50 and / or the power consumption module 30. Thus, a second type of inverter module 63 is electrically connected between each first type of power supply module and the grid connection bus 10, and the second type of inverter module 63 converts the DC power generated by the first type of power supply module to AC power and transmits the AC power to the commercial power grid 50 and / or the power consumption module 30 via the grid connection bus 10. The second type of inverter module 63 is further used to convert the AC power transmitted from the commercial power grid 50 via the grid connection bus 10 to DC power and store it in the energy storage module 25. When Figure 1 is combined and the power supply module 20 includes an energy storage power source 25, a photovoltaic power generation device 27, a wind power generation device 27, and a diesel generator 27, the first type of power supply module may include the energy storage power source 25, the photovoltaic power generation device 27, and the wind power generation device 27, and the second type of power supply module 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 relationship between the number of first-type power supply modules and the number of second-type inverter modules 63 in the second set of power supply modules 23 may be one-to-one. In some embodiments, each first-type power supply module (e.g., a power generation module 27 and an 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 Figure 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 supply 25, and one diesel generator 27), the energy storage power supply 25, the solar power generation device 27, and the wind power generation device 27 are all Type 1 power supply modules, and the diesel generator 27 is a Type 2 power supply module. In this case, there are three Type 2 inverter modules 63, the solar power generation device 27 is electrically connected to the grid connection bus 10 by one Type 2 inverter module 63, the wind power generation device 27 is electrically connected to the grid connection bus 10 by another Type 2 inverter module 63, the energy storage power supply 25 is electrically connected to the grid connection bus 10 by another Type 2 inverter module 63, and the diesel generator is electrically connected directly to the grid connection bus 10.

[0040] The energy management module 40 may also be an Energy Management System (EMS), and generally, the energy management module 40 may include functions for data collection, data analysis and management, energy scheduling and optimization, and energy monitoring and warning. By installing the energy management module 40, the power distribution system 100 can detect, analyze, and manage energy, thereby achieving the objectives of reducing power consumption, improving energy utilization efficiency, and ensuring the safety of the energy supply. In this application, the energy management module 40 can acquire various data from the power distribution system 100 in real time, such as the total output power of the power supply module 20, the status of the power supply module 20, and the total power consumption of the power consumption module 30. Based on the obtained data, it processes and analyzes the data to adjust the output power of at least some of the power supply modules 20, thereby achieving optimized energy allocation and utilization.

[0041] Specifically, referring to Figures 1 to 5, in several embodiments, the power supply module 20 can establish communication with the energy management module 40 by wired or wireless connection. Wired connection involves the power supply module 20 being electrically connected to the energy management module 40 using a tangible medium such as a metal wire or optical fiber to establish communication and thereby enable the transmission of data signals. Wireless connection involves the power supply module 20 being connected to the energy management module 40 by a method such as Wi-Fi, 4G, or Bluetooth to establish communication and thereby enable the transmission of data signals. Specifically, when the power supply module 20 and the energy management module 40 establish communication, the power supply module 20 can transmit data 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, when the power supply module 20 is a power generation module 27, the data of the power supply module 20 may include the output power of each power generation module 27 or the operating status of each power generation module 27. When the power supply module 20 is an energy storage module 25, the data of the power supply module 20 may include the output power of the energy storage module 25, the power stored in the energy storage module 25, and the operating status of the energy storage module 25. For example, if the data of the power supply module 20 includes the output power of each power supply module 20 (including the energy storage module 25 and the power generation module 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 module 20.

[0042] It is important to note that in some embodiments, the control policy may be protocol data transmitted by the energy management module 40 to the power supply modules 20, thereby allowing 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-configured in the energy management module 40, which selects a corresponding control policy based on the received data and outputs it to the power supply modules 20. In some other embodiments, the control policy may be a control policy manually output by the user based on data received by the energy management module 40.

[0043] More specifically, referring to Figure 1, in some embodiments, a first communication unit 41 may be provided in the energy management module 40, and a second communication unit 29 may be provided in the power supply module 20. 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 can receive signals transmitted by other devices to the energy management module 40 and transmit signals from the energy management module 40 to other devices that establish communication with it. 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 can receive signals transmitted by other devices to the power supply module 20 and transmit signals from the power supply module 20 to other devices that establish communication with it. It should be noted that in some embodiments, each power supply module 20 is provided with a second communication unit 29. In some other embodiments, at least some of the power supply modules 20 are provided with a second communication unit 29.

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

[0045] Referring to Figure 2, in some embodiments, the power distribution system 100 may include a first smart outlet 70, which in some embodiments is connected between an inverter module 60 and a grid connection bus 10, and the first smart outlet 70 is used to detect the output power of a first type of power supply module in a 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 a second set of power supply modules 23 and a grid connection bus 10, and the first smart outlet 70 is used to detect the output power of a corresponding second type of power supply module. An 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 by wired or wireless connection. Wired connection involves the energy management module 40 establishing communication with the first smart outlet 70 using a tangible medium such as a metal wire or optical fiber, thereby enabling signal transmission. Wireless connection involves the energy management module 40 establishing communication with the first smart outlet 70 using a method such as Wi-Fi, 4G, or Bluetooth, thereby enabling signal transmission. Specifically, when the energy management module 40 and the first smart outlet 70 establish communication, the energy management module 40 can acquire data from the first smart outlet 70. For example, the energy management module 40 can acquire the output power of the first set of power supply modules 21 from the first smart outlet 70, thereby acquiring the total output power of the first set of power supply modules 21, and can acquire the output power of each power supply module 20 in the second set of power supply modules 23 from the first smart outlet 70, thereby acquiring the total output power of the power supply modules.

[0047] Referring to Figure 3, in some embodiments, multiple power supply modules 20 and an energy management module 40 can be simultaneously connected via a communication unit and a smart outlet. Specifically, a second communication unit 29 is provided in some of the multiple power supply modules 20, and a first communication unit 41 is provided in the energy management module 40. In this case, some of the multiple power supply modules 20 establish a communication connection with the energy management module 40 via the first communication unit 41 and the second communication unit 29, while the other parts of the multiple power supply modules 20 establish a communication connection with the energy management module 40 via the first smart outlet 70. As a result, the energy management module 40 can acquire data from each power supply module 20, for example, the output power of each power supply module 20. As shown in Figure 3, if there are six power supply modules 20 (including one solar power generation device, one energy storage power supply, one solar power generation device, one wind power generation device, one diesel generator, and one energy storage power supply), five of the six power supply modules 20 (including one solar power generation device, one energy storage power supply, one solar power generation device, one wind power generation device, and one energy storage power supply) establish a communication connection with the energy management module 40 via the first smart outlet 70, and the remaining module (including one diesel generator) is equipped with a second communication unit 29, which establishes a communication connection with the first communication unit 41 of the energy management module 40.

[0048] Specifically, in some embodiments, the power consumption module 30 can establish communication with the energy management module 40 by wired or wireless connection. Wired connection involves the power consumption module 30 establishing communication with the energy management module 40 using a tangible medium such as a metal wire or optical fiber, thereby enabling the transmission of data signals. Wireless connection involves the power consumption module 30 establishing communication with the energy management module 40 using a method such as Wi-Fi, 4G, or Bluetooth, thereby enabling the transmission of data signals. Specifically, when the power consumption module 30 establishes communication with the energy management module 40, data from the power consumption module 30 can be transmitted to the energy management module 40, and the energy management module 40 can analyze the received data and output a control policy corresponding to the power consumption module 30. The data from the power consumption module 30 may include the power consumption of each power consumption module 30 or the operating status of each power consumption module 30.

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

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

[0051] Referring to Figure 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 the second smart outlet 80 is used to detect the power consumption of the power consumption modules 30, and 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 by either a wired or wireless connection. A wired connection involves the energy management module 40 establishing communication with the second smart outlet 80 using a tangible medium such as a metal wire or optical fiber, thereby enabling signal transmission. A wireless connection involves the energy management module 40 establishing communication with the second smart outlet 80 using a method such as Wi-Fi, 4G, or Bluetooth, thereby enabling signal transmission. Specifically, when the energy management module 40 and the second smart outlet 80 establish communication, the energy management module 40 can acquire 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] Referring to Figure 3, in some embodiments, the power consumption module 30 and the energy management module 40 can be simultaneously connected via a communication unit and a smart outlet. Specifically, a third communication unit 31 is provided in part of the power consumption module 30, and a first communication unit 41 is provided in the energy management module 40. In this case, part of the power consumption module 30 establishes a communication connection with the energy management module 40 via the first communication unit 41 and the third communication unit 31, while the other part of the power consumption module 30 establishes a communication connection with the energy management module 40 via a second smart outlet 80. As a result, the energy management module 40 can acquire data from each power consumption module 30, for example, the output power of each power consumption module 30. As shown in Figure 3, if there are four power consumption modules 30 (including one light bulb, one washing machine, one personal 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 via the second smart outlet 80, and the remaining module (including one personal computer) is equipped with a third communication unit 31, which establishes a communication connection with the first communication unit 41 of the energy management module 40.

[0054] As described above, referring to Figure 1, in some embodiments, communication connections can be made between multiple power supply modules 20 and energy management modules 40, and between power consumption modules 30 and energy management modules 40, using communication units (including a first communication unit 41, a second communication unit 29, and a third communication unit 31). Referring to Figure 2, in some embodiments, communication connections can be made between multiple power supply modules 20 and energy management modules 40, and between power consumption modules 30 and energy management modules 40, using smart outlets (including a first smart outlet 70 and a second smart outlet 80). Referring to Figure 3, in several further embodiments, communication connections can be made simultaneously between multiple power supply modules 20 and energy management modules 40 using communication units and smart outlets, and correspondingly, communication connections can also be made simultaneously between power consumption modules 30 and energy management modules 40 using communication units and smart outlets. Referring to Figure 4, in some further embodiments, in the same power distribution system 100, communication connections between multiple power supply modules 20 and energy management modules 40 can be made solely by communication units (including a first communication unit 41 and a second communication unit 29), and communication connections between power consumption modules 30 and energy management modules 40 can be made solely by smart outlets (a second smart outlet 80). Referring to Figure 5, in some further embodiments, in the same power distribution system 100, communication connections between multiple power supply modules 20 and energy management modules 40 can be made solely by smart outlets (including a first smart outlet 70), and communication connections between power consumption modules 30 and energy management modules 40 can be made solely by communication units (including a first communication unit 41 and a 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 a standalone structure and electrically connected to the grid connection bus 10.

[0056] Specifically, in some embodiments, the first energy management unit 43 can be mounted in an external environment and connected to equipment such as the power supply module 20, inverter module 60, first smart outlet 70, and second smart outlet 80 by wired or wireless connection, thereby transmitting data from the equipment to the energy management unit 40. The first energy management unit 43 then analyzes the received data and outputs a control policy. The first energy management unit 43 can be individually provided outside the power supply module 20, improving the expandability of the power distribution system 100. For example, if it is necessary to expand the equipment in the power distribution system 100 (e.g., power supply module 20, inverter module 60, first smart outlet 70, and second smart outlet 80), it can be used normally simply by establishing communication between the equipment to be expanded and the first energy management unit 43. Furthermore, the first energy management unit 43 is provided separately outside the power supply module 20 and can be controlled and managed independently of the power supply module 20, inverter module 60, first smart outlet 70, and second smart outlet 80. This improves the flexibility of the first energy management unit 43, and the externally mounted first energy management unit 43 can select and control and manage the appropriate power supply module 20 or inverter module 60 or other equipment as needed, thereby realizing a rational allocation of energy in the power distribution system 100.

[0057] Referring to Figures 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 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 by wired or wireless means to devices such as the power supply module 20, inverter module 60, first smart outlet 70, and second smart outlet 80, and transmits data from these devices to the second energy management unit 45, which then analyzes the received data and outputs a control policy. By integrating the second energy management unit 45 into a single inverter module 60, extra installation and wiring operations can be avoided, thereby simplifying the structure of the power distribution system 100, accelerating the speed at which the second energy management unit 45 receives data, and improving the response efficiency of the second energy management unit 45.

[0059] In some embodiments, if 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, to obtain the power consumption of each power consumption module 30 to obtain 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 total power consumption. If the first energy management unit 43 is malfunctioning, 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 perform mutual detection to determine whether the other's operating state 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, receives a response signal returned from the other, and uses the response signal to determine whether the other of the first energy management unit 43 and the second energy management unit 45 is abnormal. If the second energy management unit 45 transmits 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 malfunctioning (e.g., down). As a result, the second energy management unit 45 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 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 total power consumption. This prevents the problem of the power distribution system 100 being unable to operate when the first energy management unit 43 malfunctions and improves the stability of the power distribution system 100.

[0061] Referring to Figures 1 and 6, embodiments of the present application provide a power distribution method that is applicable to a power distribution system 100 in any of the above embodiments. The power distribution method is Step 01 involves 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, thereby obtaining the total output power of the power supply modules 20. Step 03 involves obtaining the power consumption of each power consumption module 30 to obtain the total power consumption of the power consumption modules 30, The method includes step 05, which adjusts the output power of at least some of the power supply modules 20 according to the total output power and total power consumption.

[0062] The power supply module 20 (including the first set of power supply modules 21 and the second set of power supply modules 23) and the power consumption module 30 in this embodiment are substantially the same as the power supply module 20 (including the first set of power supply modules 21 and the second set of power supply modules 23) and the power consumption module 30 in the above embodiment, and will not be repeated here. Specifically, the energy management module 40 is used to obtain the total output power of the power supply modules 20 by acquiring 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 power consumption of the power consumption modules 30 by acquiring the power consumption of each power consumption module 30, and to 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, if 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 if the first energy management unit 43 is malfunctioning, the second energy management unit 45 takes over the operation of the first energy management unit 43, i.e., the second energy management unit 45 is used to perform the above-mentioned power distribution method.

[0064] In the power distribution method of the embodiment of the present invention, 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 are obtained to obtain the total output power of the power supply modules 20, 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 total power consumption, and the total output power of the power supply modules 20 can be adaptively adjusted in accordance with the changes in the power consumption modules 30, further ensuring the normal operation of the power distribution system 100.

[0065] In some embodiments, the power generation module 27 includes an adjustable power generation module. Specifically, referring to Figure 1, in some embodiments, when the power generation module 27 is a diesel generator, a solar power generation system, and a wind power generation system, the diesel generator is a power generation module with adjustable output power, while the solar power generation system and the wind power generation system are power generation modules with non-adjustable output power. Generally, solar power generation systems and wind power generation systems employ a method that generally maximizes output when outputting power, so generally, both solar power generation systems and wind power generation systems are power generation modules with non-adjustable output power. It should be noted that in some embodiments, the output power of a diesel generator can be increased by increasing the fuel supply, increasing the intake air volume, or increasing the cylinder pressure, or the output power of a diesel generator can be decreased by decreasing the fuel supply, decreasing the intake air volume, or decreasing the cylinder pressure.

[0066] Referring to Figures 1 and 7, in some embodiments, step 05 adjusts the output power of at least some of the power supply modules 20 according to the total output power and total power consumption. 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 the output power of the adjustable power generation module when 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 repeated here. Specifically, if the total output power of the power supply module 20 is less than the total power consumption of the power consumption module 30, the total output power of the power supply module 20 cannot meet the power consumption demand of the power consumption module 30. In this case, at least some of the power consumption modules 30 will not be able to operate properly. Therefore, the energy management module 40 can analyze the total output power and total power consumption and then send a control policy to the energy storage module 25 and / or adjustable power generation module to increase the output power of the energy storage module 25 and / or adjustable power generation module. It is understandable that both the first set of power supply modules 21 and the second set of power supply modules 23 may include the energy storage module 25 and the adjustable power generation module. If both the first set of power supply modules 21 and the second set of power supply modules 23 include an energy storage module 25 and an adjustable power generation module, 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, if the total output power is less than the total power consumption.

[0069] Furthermore, in some embodiments, if the output power of the solar power generation system and the wind power generation system is adjustable, the solar power generation system and the wind power generation system can be applied to the power distribution method in this application as adjustable power generation modules.

[0070] In one embodiment, if 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 (including the energy storage module 25 in the first set of power supply modules 21 and / or the energy storage module 25 in the second set of power supply modules 23) 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 module 30. This allows the power distribution system 100 to meet the power consumption demand of the power consumption module 30 while achieving the effects of self-generation and self-use, thereby reducing the power consumption cost of the power distribution system 100. Understandably, when the energy management module 40 increases the output power of the energy storage module 25 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 equal to the total power consumption of the power consumption module 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, the energy management module 40 increases the output power of the energy storage module 25 so that when the sum of the total output power of the power generation module 27 and the output power of the energy storage module 25 is slightly greater than the total power consumption of the power consumption module 30, the energy management module 40 controls the energy storage module 25 to transmit the excess power to the commercial power grid 50 electrically connected to the grid connection bus 10 via the grid connection bus 10, thereby achieving equality between the total output power of the power supply module 20 and the total power consumption of the power consumption module 30. Similarly, the energy management module 40 increases the output power of the energy storage module 25 so that when the sum of the total output power of the power generation module 27 and the output power of the energy storage module 25 is slightly less than the total power consumption of the power consumption module 30, the energy management module 40 continues to increase the output power of the energy storage module 25, thereby achieving equality between the total output power of the power supply module 20 and the total power consumption of the power consumption module 30.

[0071] In other embodiments, if 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) to make the sum of the total output power of the power generation modules 27 and the output power of the energy storage module 25 approximately equal to the total power consumption of the power consumption modules 30. This allows the power distribution system 100 to meet the power consumption demand of the power consumption modules 30 while achieving the effects of self-generation and self-use, thereby 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 to make the sum of the total output power of the power generation modules 27 and the output power of the energy storage module 25 approximately equal to the total power consumption of the power consumption modules 30. One point that can be understood is that the energy management module 40 increases the output power of the adjustable power generation module, so that when the sum of the total output power of the power generation module 27 and the output power of the energy storage module 25 is equal to the total power consumption of the power consumption module 30, the power distribution system 100 is in an optimized state of self-generation and self-use, and the energy distribution of the power distribution system 100 is optimized.Therefore, when the energy management module 40 increases 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 slightly greater than the total power consumption of the power consumption module 30, the energy management module 40 controls the adjustable power generation module to transmit the excess power to the commercial power grid 50 electrically connected to the grid connection bus 10 via the grid connection bus 10, or to the energy storage module 25 electrically connected to the grid connection bus 10 via the grid connection bus 10, thereby ensuring that the total output power of the power supply module 20 is equal to the total power consumption of the power consumption module 30. When the energy management module 40 increases 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 slightly less than the total power consumption of the power consumption module 30, the energy management module 40 can continue to increase the output power of the adjustable power generation module, thereby ensuring that the total output power of the power supply module 20 is equal to the total power consumption of the power consumption module 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 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 module 30. This allows the power distribution system 100 to meet the power consumption demand of the power consumption module 30 while achieving the effects of self-generation and self-use, thereby reducing the power consumption cost of the power distribution system 100.

[0073] Referring to Figures 1 and 8, in some embodiments, the power distribution method further includes step 07, in which the commercial power grid 50 controls the supply of power to the power consumption module 30 when the total output power is less than the total power consumption.

[0074] In some embodiments, the grid connection bus 10 is electrically connected to the commercial power grid 50. The energy management module 40 is further used to control the supply of power to the power consumption module 30 by the commercial power grid 50 when the total output power is less than the total power consumption.

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

[0076] Specifically, if the total output power (including the total output power of the energy storage module 25 and the total output power of the power generation module 27) is less than the total power consumption of the power consumption module 30, the energy management module 40 controls the supply of power to the power consumption module 30 by the commercial power grid 50 so that the sum of the total output power of the power supply module 20 and the output power supplied to the power consumption module 30 by the tram module is equal to the total power consumption of the power consumption module 30. This ensures the normal operation of the power consumption module 30 while simultaneously optimizing the energy allocation of the power distribution system 100.

[0077] Referring to Figures 1 and 9, in some embodiments, the power distribution method is: Step 08 controls the energy storage module 25 to stop supplying power to the power consumption module 30 if the total output power of the power supply module 20 is greater than the total power consumption, The further step 09 includes controlling the power generation module 27 to supply power to the energy storage module 25 and / or the commercial power grid 50, or to reduce the power generated by the adjustable power generation module, if the total output power of the power generation module 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 from supplying power to the power consumption module 30 if the total output power of the power supply module 20 is greater than the total power consumption, and to control the power generation module 27 from supplying power to the energy storage module 25 and / or the commercial power grid 50, or from reducing the power generated by the adjustable power generation module, if 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 module 30, the output power of the power supply module 20 exceeds the power consumption demand of the power consumption module 30, in which case damage issues may occur in at least some of the power consumption modules 30. Therefore, after analyzing the total output power and total power consumption, the energy management module 40 can send a control policy to the energy storage module 25 and the power generation module 27 to control the cessation of power supply to the power consumption module 30 by controlling the energy storage module 25 to suspend power supply, and if the total output power of the power generation module 27 is greater than the total power consumption, it can control the power generation module 27 to supply power to the energy storage module 25 and / or the commercial power grid 50, or reduce the power generation of adjustable power generation modules.

[0080] 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 module 30, the energy management module 40 controls the cessation of power supply from the energy storage module 25 (including the energy storage module 25 in the first set of power supply modules 21 and / or the energy storage module 25 in the second set of power supply modules 23) to the power consumption module 30, and stores it for household use. After the energy storage module 25 stops supplying power to the power consumption module 30, if the total output power of the power generation module 27 is greater than the total power consumption, the energy management module 40 may also control the power supply of the power generation module 27 to the energy storage module 25 and / or the commercial power grid 50, so that after the power supply from the energy storage module 25 to the power consumption module 30 is stopped, the total output power of the power generation module 27 becomes equal to the total power consumption. It is important to explain that in some embodiments, the power generation module 27 can supply power to the energy storage module 25 via the grid connection bus 10, storing the power in the energy storage module 25 for use, or the power generation module 27 can supply power to the commercial power grid 50 via the grid connection bus 10 and generate revenue by selling excess power to the power company, or the power generation module 27 can supply power to both the energy storage module 25 and the commercial power grid 50 via the grid connection bus 10. For example, if the power generation module 27 supplies power to the energy storage module 25 via the grid connection bus 10, and the amount of power that the energy storage module 25 can store reaches its limit (maximum value), the power generation module 27 can supply power to the commercial power grid 50 via the grid connection bus 10.

[0081] One point that can be understood is that, in some embodiments, if the total output power of the power supply module 20 is greater than the total power consumption, the energy management module 40 controls the power supply from the energy storage module 25 to the power consumption module 30, and after controlling the cessation of power supply from the energy storage module 25 to the power consumption module 30, if the total output power of the power generation module 27 is less than the total power consumption of the power consumption module 30, the energy management module 40 can restart the energy storage module 25 to increase the output power of the energy storage module 25 and / or 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 module 30, thereby enabling the power distribution system 100 to meet the power consumption demand of the power consumption module 30 while achieving the effects of self-generation and self-use, and reducing the power consumption cost of the power distribution system 100. The specific method by which the energy management module 40 increases the output power of the energy storage module 25 and / or the output power of the adjustable power generation module is substantially the same as in the embodiments described above and will not be repeated here.

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

[0083] In this specification, reference terms such as “one embodiment,” “several embodiments,” “example,” “specific example,” or “several examples” refer to specific features, structures, materials, or characteristics described in combination with such embodiments or examples, which are included in at least one embodiment or example of the present invention. In this specification, the above-mentioned exemplary descriptions do not necessarily apply to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in an appropriate manner in any or more embodiments or examples. Notwithstanding the fact that they do not conflict with each other, those skilled in the art can 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 indicating one or more modules, fragments, or parts containing code for executable instructions to implement a custom logical function or step of a process, and the scope of preferred embodiments of this application includes other implementations, and the functions do not have to be performed in the order shown or discussed, including performing the functions essentially concurrently or in reverse order based on the relevant functions, as should be understood by those skilled in the art.

[0085] The logic and / or steps shown in the flowchart or otherwise described herein can be thought of, for example, as an ordered list of executable instructions for realizing a logical function, which can be specifically realized on any computer-readable medium and used in or in combination with instruction execution systems, devices or equipment (for example, computer-based systems, which include a processor or a system that reads instructions from an instruction execution system, device or equipment and executes those instructions). For the purposes of this specification, “computer-readable medium” may be any device that stores, communicates, propagates or transmits a program, which can be used in combination with an instruction execution system, device or equipment or such instruction execution systems, devices or equipment. More specific examples of computer-readable mediums (a non-exclusive list) include electrical connections having one or more wires (electronic devices), portable computer disk cartridges (disk drives), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), optical fiber devices, and portable disk read-only memory (CDROM). Furthermore, the computer-readable medium may also be paper or other suitable medium on which the program is printed. For example, the program may be acquired electronically by optically scanning paper or other suitable medium, and then editing, interpreting, or processing it in any other suitable manner, and then stored in computer memory.

[0086] It should be understood that each part of the present invention 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 memory and executed by an appropriate instruction execution system. If implemented in hardware, as in other embodiments, it can be implemented in any or a combination of technologies known in the art, such as discrete logic circuits having logic gate circuits for implementing logic functions for data signals, dedicated integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0087] Those skilled in the art will understand that the implementation of all or some of the steps described in the above embodiments and methods can be completed by instructing the relevant hardware with a program, which can be stored in a computer-readable storage medium, and when the program is executed, it includes 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 hardware form or in the form of 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 single computer-readable storage medium.

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

[0089] [Cross-reference of related applications] This application claims priority and interest in the patent application no. 202310979971.4, submitted to the China National Intellectual Property Administration on 3 August 2023, which is incorporated herein by reference in its entirety.

Claims

1. It is a power distribution system, A grid connection bus for electrically connecting to power consumption modules, The inverter module includes 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. A plurality of power supply modules used to supply power to the power consumption module, comprising a first set of power supply modules and a second set of power supply modules, wherein the first set of power supply modules includes at least two of the power supply modules, one inverter module of the first type is connected between the first set of power supply modules and the grid connection bus, at least some of the power supply modules in the second set of power supply modules are directly electrically connected to the grid connection bus, and / or one inverter module of the second type 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 system includes an energy management module that is electrically connected to the grid connection bus and is used to obtain the total output power of the first set of power supply modules and the output power of each of the power supply modules in the second set of power supply modules to obtain the total output power of the power supply modules, obtain the power consumption of each of the power consumption modules to obtain the 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, The energy management module includes a first energy management unit, the first energy management unit being an independent structure and electrically connected to the grid connection bus. The energy management module includes a second energy management unit, which is integrated into the first type inverter module electrically connected to the first set of power supply modules. The first energy management unit and the second energy management unit perform mutual detection and determine whether the other's operating state is normal. The first energy management unit is used to obtain the total output power of the first set of power supply modules and the output power of each of the power supply modules in the second set of power supply modules to obtain the total output power of the power supply modules, to obtain the power consumption of each of the power consumption modules to obtain the total power consumption of the power consumption modules, and to adjust the output power of at least some of the power supply modules according to the total output power and the total power consumption. A power distribution system in which, if the first energy management unit is malfunctioning, the second energy management unit takes over from the first energy management unit.

2. The multiple 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 includes, The power distribution system according to claim 1, used to increase the output power of the energy storage module and / or increase the output power of the adjustable power generation module when the total output power is less than the total power consumption.

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

4. The multiple 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 includes, If the total output power of the power supply module is greater than the total power consumption, control the cessation of power supply from the energy storage module to the power consumption module, and The power distribution system according to claim 1, used to control the supply of power from the power generation module to the energy storage module and / or the commercial power grid, or to reduce the power generated by the adjustable power generation module, when the total output power of the power generation module is greater than the total power consumption.

5. 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. 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 the DC power generated by the first type power supply modules into AC power, and to transmit the AC power to the commercial power grid and / or the power consumption modules via the grid connection bus, and the first type inverter module is also used to convert the AC power transmitted from the commercial power grid via the grid connection bus into DC power and store it in the energy storage module.

6. The power distribution system according to claim 5, wherein 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.

7. The power distribution system further comprises a first smart outlet, the first smart outlet being 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 corresponding output power of the first type power supply module, or the first smart outlet being 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 the corresponding second type power supply module, the energy management module being further used to obtain each output power detected by the first smart outlet, and / or The power distribution system according to claim 6, further comprising a second smart outlet, the second smart outlet being electrically connected between the commercial power grid and the power consumption module, the second smart outlet being used to detect the power consumption of the power consumption module, and the energy management module being used to obtain the power consumption of each of the power consumption modules detected by the second smart outlet.

8. 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 power supply module through communication between the first communication unit and the second communication unit, and / or The power distribution system according to 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 obtains the power consumption of each power consumption module through communication between the first communication unit and the third communication unit.

9. A power distribution method, 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 is used to electrically connect to power consumption modules, the inverter module includes a first type inverter module and a second type inverter module, 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, the plurality of power supply modules includes a first set of power supply modules and a second set of power supply modules, the first set of power supply modules includes at least two of the power supply modules, one of the first type inverter modules is connected between the first set of power supply modules and the grid connection bus, at least some of the power supply modules in the second set of power supply modules are directly electrically connected to the grid connection bus, and / or one of the second type inverter modules 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 power distribution method is, The steps include obtaining the total output power of the first set of power supply modules and the output power of each of the power supply modules in the second set of power supply modules, and obtaining the total output power of the power supply modules, The steps include obtaining the power consumption of each of the aforementioned power consumption modules to obtain the total power consumption of the aforementioned power consumption modules, The step includes adjusting the output power of at least some of the power supply modules in accordance with the total output power and the total power consumption, The energy management module includes a first energy management unit, the first energy management unit being an independent structure and electrically connected to the grid connection bus. The energy management module includes a second energy management unit, which is integrated into the first type inverter module electrically connected to the first set of power supply modules. The first energy management unit and the second energy management unit perform mutual detection and determine whether the other's operating state is normal. The first energy management unit is used to obtain the total output power of the first set of power supply modules and the output power of each of the power supply modules in the second set of power supply modules to obtain the total output power of the power supply modules, to obtain the power consumption of each of the power consumption modules to obtain the total power consumption of the power consumption modules, and to adjust the output power of at least some of the power supply modules according to the total output power and the total power consumption. A power distribution method used for the second energy management unit to take over from the first energy management unit if the first energy management unit is malfunctioning.

10. The multiple power supply modules include energy storage modules and power generation modules, 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 is: The power distribution method according to claim 9, further comprising the step of increasing the output power of the energy storage module and / or increasing the output power of the adjustable power generation module if the total output power is less than the total power consumption.

11. The aforementioned power distribution method is The power distribution method according to claim 9, further comprising the step of controlling the supply of power from the commercial power grid to the power consumption module when the total output power is less than the total power consumption.

12. The multiple power supply modules include energy storage modules and power generation modules, the power generation modules include adjustable power generation modules, and the power distribution method further includes If the total output power of the power supply module is greater than the total power consumption, the step of controlling the cessation of power supply from the energy storage module to the power consumption module, and The power distribution method according to claim 9, further comprising the step of controlling the supply of power from the power generation module to the energy storage module and / or the commercial power grid, or reducing the power generated by the adjustable power generation module, if the total output power of the power generation module is greater than the total power consumption.

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