State Display Method, Device, Equipment and Program Product of Energy Storage System

Abstract

The present application relates to the field of energy storage systems, and particularly to a method, device, equipment and program product for displaying the state of an energy storage system. The method includes: determining the connection relationship of the node devices of the energy storage system, and generating a topological structure diagram of the energy storage system according to the connection relationship of the node devices; obtaining the operation mode of the energy storage system, and determining the power transmission direction of the first branch set in the topological structure diagram according to the operation mode; collecting the power transmission direction of the second branch set in the topological structure diagram; and controlling the movement mode of the energy identification on the branch between two adjacent nodes in the topological structure diagram according to the power transmission direction of the first branch set and the power transmission direction of the second branch set for real-time state display, so that the staff can conveniently and quickly obtain the real-time operation state of the energy storage system, which is beneficial to more reliable control and management of the energy storage system.

Description

Technical Field

[0001] The present application relates to the field of energy storage systems, and particularly to a method, device, equipment, and program product for displaying the state of an energy storage system. Background Art

[0002] An energy storage system is a system used to store and release energy, usually for balancing the demand of energy supply and load, supporting the stability of the power grid, or providing support for independent power sources. A typical photovoltaic energy storage system usually includes an energy storage module, a power conversion module, a renewable module, a power grid, and a load module. The entire energy storage system is monitored and controlled by an energy management system (EMS) to optimize the storage and release of energy and ensure the efficient operation of the system. The thermal management system and the communication system are also important components of the energy storage system, responsible for maintaining the operating temperature of the battery and realizing data exchange and remote control between the system and the power grid or users, respectively.

[0003] Through the energy management system, the energy storage system can be controlled to automatically perform energy management according to the set conditions, enabling the energy storage system to operate efficiently and economically. However, during the operation of the energy storage system, it is difficult for the staff to quickly and effectively obtain the real-time operating state of the energy storage system, which is not conducive to more reliable control and management of the energy storage system. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a method, device, equipment, and program product for displaying the state of an energy storage system to solve the problem in the prior art that it is difficult to quickly and effectively obtain the real-time operating state of the energy storage system, which is not conducive to more reliable control and management of the energy storage system.

[0005] The first aspect of the embodiments of the present application provides a method for displaying the state of an energy storage system, the method including:

[0006] Determine the connection relationship of the node devices of the energy storage system, and generate a topological structure diagram of the energy storage system according to the connection relationship of the node devices;

[0007] Obtain the operating mode of the energy storage system, and determine the power transmission direction of the first branch set in the topological structure diagram according to the operating mode;

[0008] Collect the power transmission direction of the second branch set in the topological structure diagram, where the second branch set is the branch set other than the first branch set in the topological structure diagram;

[0009] According to the power transmission direction of the first branch set and the power transmission direction of the second branch set, control the way of moving the energy identifier on the branch between two connected nodes in the topological structure diagram for real-time state display.

[0010] In combination with the first aspect, in the first possible implementation manner of the first aspect, the operating modes include a grid - priority mode, a energy - storage - priority mode, and a load - priority mode; the topological structure diagram includes a renewable node, an energy - storage node, a grid node, a power - conversion node, and a load node;

[0011] Determining the power transfer direction of the first branch set in the topological structure diagram according to the operating mode includes:

[0012] When the operating mode is the grid - priority mode, determining the power transfer directions of the branches between the grid node and the power - conversion node, and the branches between the power - conversion node and the load node in the topological structure diagram according to the grid - priority mode;

[0013] When the operating mode is the energy - storage - priority mode, determining the power transfer directions of the branches between the energy - storage node and the power - conversion node, and the branches between the power - conversion node and the load node in the topological structure diagram according to the energy - storage - priority mode;

[0014] When the operating mode is the load - priority mode, determining the power transfer direction of the branch between the power - conversion node and the load node in the topological structure diagram according to the load - priority mode.

[0015] In combination with the first aspect, in the second possible implementation manner of the first aspect, before controlling the movement of the energy label on the branch between two adjacent nodes in the topological structure diagram according to the power transfer directions of the first branch set and the second branch set for real - time status display, the method further includes:

[0016] Collecting the transmitted power between two adjacent nodes in the topological structure diagram;

[0017] Determining the movement speed of the energy label on the branch between two adjacent nodes in the topological structure diagram according to the corresponding relationship between the predicted transmitted power and the speed;

[0018] Controlling the movement of the energy label on the branch between two adjacent nodes in the topological structure diagram according to the power transfer directions of the first branch set and the second branch set for real - time status display includes:

[0019] Controlling the movement of the energy label on the branch between two adjacent nodes in the topological structure diagram for real - time status display according to the power transfer directions of the first branch set and the second branch set, in combination with the movement speeds of the energy labels on each branch.

[0020] Combined with the second possible implementation manner of the first aspect, in the third possible implementation manner of the first aspect, according to the predicted correspondence between transmission power and speed, determining the moving speed of the energy identifier on the branch between two connected nodes in the topological structure diagram includes:

[0021] When the electric energy of the first branch for which the moving speed of the energy identifier is to be determined comes from more than two branches, set more than two channels for displaying the energy identifier on the first branch;

[0022] According to the preset correspondence between transmission power and speed, determine the moving speed of the energy identifier in the more than two channels.

[0023] Combined with the third possible implementation manner of the first aspect, in the fourth possible implementation manner of the first aspect, according to the predicted correspondence between transmission power and speed, determining the moving speed of the energy identifier in the more than two channels includes:

[0024] According to the preset correspondence between transmission power and speed, determine the total speed of the first branch;

[0025] According to the power ratio of the more than two branches of the electric energy source of the first branch, combined with the total speed, determine the moving speed of the energy identifier in the more than two channels.

[0026] Combined with the fourth possible implementation manner of the first aspect, in the fifth possible implementation manner of the first aspect, after determining the moving speed of the energy identifier in the more than two channels according to the power ratio of the more than two branches of the electric energy source of the first branch, combined with the total speed, the method further includes:

[0027] According to the appearance of the energy identifiers of the more than two branches of the electric energy source of the first branch, correspondingly determine the appearance of the energy identifiers in the more than two channels.

[0028] Combined with any one of the first aspect to the fifth possible implementation manner of the first aspect, in the sixth possible implementation manner of the first aspect, after determining the connection relationship of the node devices of the energy storage system and generating the topological structure diagram of the energy storage system according to the connection relationship of the node devices, the method further includes:

[0029] Receive a time setting instruction, where the time setting instruction includes a time range for displaying energy changes;

[0030] According to the time range, determine the energy transfer amount between two connected nodes in the topological structure diagram;

[0031] Display the energy transfer amount on the branch between two connected nodes in the topological structure diagram.

[0032] In a second aspect of the embodiments of the present application, a state display device for an energy storage system is provided. The device includes:

[0033] A topology structure diagram generation unit, configured to determine the connection relationship of the node devices of the energy storage system, and generate a topology structure diagram of the energy storage system according to the connection relationship of the node devices;

[0034] A first direction determination unit, configured to obtain the operation mode of the energy storage system, and determine the power transmission direction of the first branch set in the topology structure diagram according to the operation mode;

[0035] A second direction determination unit, configured to collect the power transmission direction of the second branch set in the topology structure diagram, where the second branch set is the branch set other than the first branch set in the topology structure diagram;

[0036] A real-time state display unit, configured to perform real-time state display by controlling the moving manner of the energy identifier on the branch between two connected nodes in the topology structure diagram according to the power transmission direction of the first branch set and the power transmission direction of the second branch set.

[0037] In a third aspect of the embodiments of the present application, a state display device for an energy storage system is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the state display device for the energy storage system implements the method according to any one of the first aspect.

[0038] In a fourth aspect of the embodiments of the present application, a computer program product is provided. When it runs on a computer, it causes the computer to execute the method according to the first aspect or its various implementation manners.

[0039] In a fifth aspect of the embodiments of the present application, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method according to any one of the first aspect are implemented.

[0040] In a sixth aspect of the embodiments of the present application, a chip is provided for implementing the methods according to the various implementation manners in the first aspect. Specifically, the above chip includes: a processor, configured to call and run a computer program from a memory, so that a device installed with the above chip executes the method according to the first aspect or its various implementation manners.

[0041] The beneficial effects of the embodiments of the present application compared with the prior art are as follows: By determining the connection relationship of the node devices of the energy storage system, the topology structure diagram of the energy storage system is determined according to the connection relationship. The operation mode of the energy storage system is obtained, the power transmission direction of the first branch set in the New Year greeting structure diagram is determined according to the operation mode, the power transmission direction of the second branch set outside the first branch set in the topology structure diagram is determined, and based on the power transmission directions of the first branch set and the second branch set, the energy identifier is controlled to move on the branch between two connected nodes in the topology structure diagram. Without detecting the power transmission direction of each node, the real-time dynamic display of power transmission can be realized, enabling the staff to conveniently and quickly obtain the real-time operation status of the energy storage system, which is beneficial to more reliable control and management of the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0043] Figure 1 It is a schematic flow chart of the implementation of a method for displaying the state of an energy storage system provided by an embodiment of the present application;

[0044] Figure 2 It is a schematic diagram of a topology structure diagram provided by an embodiment of the present application;

[0045] Figure 3 It is a schematic diagram of power transmission provided by an embodiment of the present application;

[0046] Figure 4 It is a schematic diagram of power transmission provided by an embodiment of the present application;

[0047] Figure 5 It is a schematic diagram of power transmission provided by an embodiment of the present application;

[0048] Figure 6 It is a schematic diagram of energy transfer within a time range provided by an embodiment of the present application;

[0049] Figure 7 It is a schematic diagram of a device for displaying the state of an energy storage system provided by an embodiment of the present application;

[0050] Figure 8 It is a schematic diagram of a device for displaying the state of an energy storage system provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0051] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0052] To illustrate the technical solutions described in the present application, the following will be described through specific embodiments.

[0053] An energy storage system is a solution for energy stability and availability. By storing energy and releasing it when needed, it can be used to regulate the imbalance between energy supply and demand, maintain grid stability, or provide energy support for independent power systems that do not rely on the grid. A typical photovoltaic energy storage system consists of several key components: an energy storage module, a power conversion module, a renewable module, a power grid, and a load module. The entire system is monitored and regulated by an energy management system (EMS) to ensure the optimization of energy storage and release, thereby achieving the efficient operation of the system.

[0054] The energy management system (EMS) can automatically manage the energy flow of the energy storage system according to preset conditions, ensuring the efficiency and economy of the system operation. However, the energy storage system faces a challenge in actual operation: it is difficult for staff to quickly and accurately obtain the real-time operation status of the system, which affects the reliable and precise control and management of the energy storage system.

[0055] Based on this, the embodiments of the present application propose an energy management method for an energy storage system, as Figure 1 shown, the method includes:

[0056] In S101, determine the connection relationship of the node devices of the energy storage system, and generate a topology structure diagram of the energy storage system according to the connection relationship of the node devices.

[0057] The node devices in the energy storage system in the embodiments of the present application may include an energy storage module, a power conversion module, a renewable module, a power grid, and a load module.

[0058] Among them, the energy storage module is the core part of the energy storage system, usually including energy storage components such as batteries, including lithium-ion batteries, lead-acid batteries, etc. The energy storage module is responsible for storing electrical energy for use when needed. The energy storage module can obtain energy from the power grid, solar photovoltaic (PV) systems, or other renewable energy sources, and release energy during peak power demand or unstable grid power supply.

[0059] A power conversion module generally includes an inverter and a rectifier. The inverter is used to convert direct current (DC) into alternating current (AC) for use by the power grid or AC loads. The rectifier is used to convert alternating current into direct current for battery charging or direct power supply to DC devices. The power conversion module ensures that the energy storage system can flexibly manage DC and AC energy.

[0060] The renewable module is used to provide renewable energy, including solar photovoltaic systems or wind power generation systems, etc. The renewable module can provide renewable energy for the energy storage system, reduce dependence on the traditional power grid, and lower energy costs.

[0061] The power grid is one of the external energy sources of the energy storage system. It provides power for the energy storage system and can also be the recipient of the energy released by the energy storage system. The energy storage system can buy and sell energy through the power grid to utilize the peak-valley electricity price difference or provide support when the power grid is unstable.

[0062] The load module includes household loads and backup loads. Household loads are electrical appliances used in the home, such as air conditioners, TVs, refrigerators, etc. Household loads require a stable power supply. The energy storage system can intelligently distribute energy according to the needs of household loads to ensure the stable and efficient use of household electricity. Backup loads usually refer to key devices that need continuous power supply when the power grid supply is interrupted, including emergency lighting, medical equipment, or security systems. The energy storage system can provide necessary power for these backup loads when the power grid is powered off to ensure the continuity of critical operations.

[0063] The embodiment of this application receives the setting instructions of the staff, determines the node devices included in the energy storage system, and the connection relationships between the node devices. Nodes can be created accordingly according to the node devices included in the setting instructions. For example, renewable nodes are created according to the renewable module, energy storage nodes are created according to the energy storage module, power grid nodes are created according to the power grid, power conversion nodes are created according to the power conversion module, and load nodes are created according to the load module.

[0064] After creating nodes according to the node devices, the branches between the nodes are determined according to the connection relationships between the various node devices.

[0065] For example Figure 2 As shown, in the topological structure diagram determined according to the node devices, the branches between the energy storage node and the power conversion node, between the renewable node and the power conversion node, between the renewable node and the power conversion node, and between the load node and the power conversion node are determined according to the connection relationships between the node devices, and the topological structure diagram of the energy storage system is obtained. The branches between the nodes in the topological structure diagram can be drawn by the method of drawing Bezier curves.

[0066] In S102, obtain the operating mode of the energy storage system, and determine the power transmission direction of the first branch set in the topological structure diagram according to the operating mode.

[0067] After creating the topological structure diagram of the energy storage system, the control instructions of the energy storage system can be monitored, and the power transmission direction of the first branch set in the topological structure diagram can be determined according to the mode control instructions of the energy storage system.

[0068] Among them, the first branch set includes one or more than two branches. The first branch set is the branch for which the power transmission direction can be determined according to the operating mode. A branch is the connection relationship between any two connected nodes.

[0069] Among them, when the operating mode is the grid priority mode, power is preferentially provided by the grid. At this time, the transmission direction of the first branch set in the topological structure diagram can be determined. The first branch set includes the branch between the grid node and the power conversion node, and the branch between the power conversion node and the load node. For example, power is transmitted from the grid node to the power conversion node, and power is transmitted from the power conversion node to the load node.

[0070] When the operating mode is the energy storage priority mode, that is, power is preferentially supplied by the energy storage module, the power transmission direction of the branch between the energy storage node and the power conversion node in the topological structure diagram, and the branch between the power conversion node and the load node can be determined according to the energy storage priority mode. For example, according to the energy storage priority mode, combined with the SOC (state of charge of the battery) in the energy storage module, it can be determined whether the energy storage module transmits power to the power conversion node. For example, when the energy storage module is within a predetermined battery state range, power is transmitted from the energy storage node to the power conversion node.

[0071] When the operating mode is the load priority mode, that is, it is ensured that a stable power supply can be provided for the load preferentially, the power transmission direction of the branch between the power conversion node and the load node in the topological structure diagram is determined according to the load priority mode.

[0072] In S103, collect the power transmission direction of the second branch set in the topological structure diagram. The second branch set is the branch set other than the first branch set in the topological structure diagram.

[0073] After determining the first branch set, the second branch set is the remaining other branches in the topological structure diagram. For the power transmission direction of other branches, a power transmission direction detection device, including devices such as current transformers or Hall sensors, can be used to quickly detect the power transmission direction of the branches.

[0074] For example, when the operation mode is the grid - priority mode, the renewable energy node may transmit power to the power conversion node, and the energy storage node may transmit power to the power conversion node; or, there may be no power transmission between the renewable energy node and the power conversion node, and the energy storage node may transmit power to the power conversion node; or, the power conversion node may transmit power to the renewable energy node, and the power conversion node may transmit power to the energy storage node; or, there may be no power transmission between the renewable energy node and the power conversion node, and the power conversion node may transmit power to the energy storage node. The power direction of the second branch set can be detected by sensing devices such as current sensors.

[0075] In S104, according to the power transmission direction of the first branch set and the power transmission direction of the second branch set, control the way the energy identifier moves on the branch between two adjacent nodes in the topological structure diagram for real - time status display.

[0076] According to the power transmission direction of the first branch set and the power transmission direction of the second branch set, the power transmission direction of all branches in the topological structure diagram can be determined. An energy identifier can be generated on the branch between any two adjacent nodes in the topological structure diagram, and the movement of the energy identifier can be controlled according to the determined power transmission direction, so as to represent the flow direction of electric energy, enabling the staff to view the flow direction of electric energy in the energy storage system in real - time, improving the convenience for the staff to obtain the operation status of the energy storage system, and being conducive to more reliable control and management of the energy storage system.

[0077] Among them, the energy identifier can be an identifier such as a particle, a small ball or a small arrow, which is used to represent the transmitted electric energy.

[0078] In a possible optimization method, the embodiments of the present application can also collect the transmission power between any two adjacent nodes in the topological structure diagram. For example, according to the current and voltage transmitted on the branch, the magnitude of the transmission power of the branch can be determined according to the formula P = UI. According to the pre - set correspondence between the transmission power and the speed, the moving speed of the energy identifier on each branch is determined, and the movement of the energy identifier on the branch is controlled according to the moving speed, so that the staff can more intuitively understand the current operation status and determine the relative relationship of the transmission power of each branch. For example Figure 3As shown, in the load - priority mode, the transmission power between the power conversion node and the load node is three times the transmission power between the energy storage node and the power conversion node, and the transmission power between the renewable node and the load node is two times the transmission power between the energy storage node and the power conversion node. Relative to the moving speed of the energy identifier between the energy storage node and the power conversion node, the moving speed of the energy identifier between the power conversion node and the load node can be controlled at three times the speed (indicated by three arrows in the figure), and the moving speed of the energy identifier between the power conversion node and the renewable node can be controlled at two times the speed (indicated by two arrows in the figure).

[0079] The corresponding relationship between the reference transmission power and the reference speed can be set. By comparing the relative relationship between the transmission power of the branch and the reference power, the moving speed of the energy identifier of the branch can be calculated.

[0080] For example, if the reference power is p0, the reference speed is v0, and the detected transmission power of the branch is p1, then according to the ratio relationship: p0 / p1 = v0 / v1, the moving speed of the energy identifier of the branch can be determined as v1 = v0*p1 / p0.

[0081] Alternatively, the number of energy identifiers transmitted per unit time can be determined according to the magnitude of the transmission power. If all the energy identifiers move at the same speed, then the relative magnitude of the transmission power can be represented by the number of energy identifiers moving on the branch.

[0082] To optimize the visualization of the electric - energy transmission path, in an embodiment of the present application, for a certain branch, such as when the electric energy of the first branch comes from more than two branches, more than two channels can be set on the first branch, and the electric energy obtained from different branches can be displayed through the more than two channels. Among them, for the energy identifiers in the more than two channels, the moving speed of the energy identifiers in each channel can be determined according to the magnitude of the electric energy from different branches, or the number of energy identifiers transmitted per unit time can be determined.

[0083] For example Figure 4 As shown, in the load - priority mode, the power conversion node and the renewable node supply electric energy to the load. The detected first power supplied by the energy storage node is x1, and the detected second power supplied by the renewable node is x2. The ratio of the first power to the second power can be determined as x1 / x2. According to the transmission power between the power conversion node and the load, the total speed v3 can be determined accordingly. Then, according to the ratio relationship of the transmission power, the moving speed of the energy identifiers in each channel can be determined accordingly, or the number of energy identifiers that need to move per unit time can be determined. Alternatively, the moving speeds of the energy identifiers from more than two branches can be directly used as the moving speeds of the energy identifiers in the more than two channels of the merged branch.

[0084] In possible implementation manners, in order to further enhance the intuitiveness of each power transmission process, embodiments of the present application may also correspond the energy identifiers in each channel to the energy identifiers of each branch in two or more branches. For example Figure 5 As shown, the energy identifier of the first channel between the converged power conversion node and the load node is a triangle, and the energy identifier of the branch between the energy storage node and the power conversion node before convergence is a triangle. The energy identifier of the second channel between the converged power conversion node and the load node is a circle, and the energy identifier of the branch between the renewable node and the power conversion node before convergence is a circle. Moreover, the moving speed of the triangular energy identifier before convergence is the same as that of the triangular energy identifier after convergence, and the moving speed of the circular energy identifier before convergence is the same as that of the circular energy identifier after convergence. Alternatively, it can also be expressed as the number of triangular energy identifiers moving in the branch before convergence is the same as the number of triangular energy identifiers moving in the first channel after convergence, and the number of circular energy identifiers moving in the branch before convergence is the same as the number of circular energy identifiers in the first channel after convergence.

[0085] In order to further improve the convenience of display, embodiments of the present application may also receive a time setting instruction for setting a time range for displaying energy changes. Determine the energy transfer amount between two connected nodes in the topology diagram through this time range, and display the energy transfer amount within this time range in the topology diagram. For example Figure 6 In the energy transfer schematic diagram of the time range shown, the size of the transferred energy can be represented by the size of the rectangular frame, or the size of the energy can also be displayed by numbers in the rectangular frame. The transfer direction of the energy is represented by the moving direction of the rectangular frame or the arrow direction of the rectangular frame. Thus, it enables the staff to conveniently view the statistical data of the energy.

[0086] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0087] Figure 7 The figure is a schematic diagram of a device for displaying the state of an energy storage system provided by an embodiment of the present application. The device includes:

[0088] A topology diagram generation unit 701, configured to determine the connection relationship of the node devices of the energy storage system, and generate a topology diagram of the energy storage system according to the connection relationship of the node devices;

[0089] The first direction determination unit 702 is configured to obtain the operation mode of the energy storage system, and determine the power transmission direction of the first branch set in the topological structure diagram according to the operation mode;

[0090] The second direction determination unit 703 is configured to collect the power transmission direction of the second branch set in the topological structure diagram, where the second branch set is the branch set other than the first branch set in the topological structure diagram;

[0091] The real-time status display unit 704 is configured to perform real-time status display by controlling the moving manner of the energy identifier on the branch between two connected nodes in the topological structure diagram according to the power transmission direction of the first branch set and the power transmission direction of the second branch set.

[0092] Figure 7 The state display device of the energy storage system shown corresponds to Figure 1 the state display method of the energy storage system shown.

[0093] Figure 8 It is a schematic diagram of a state display device of an energy storage system provided by an embodiment of the present application. As Figure 8 shown, the state display device 8 of the energy storage system in this embodiment includes: a processor 80, a memory 81, and a computer program 82 stored in the memory 81 and executable on the processor 80, such as a state display program of the energy storage system. When the processor 80 executes the computer program 82, the steps in the above-mentioned embodiments of the state display method of each energy storage system are implemented. Alternatively, when the processor 80 executes the computer program 82, the functions of each module / unit in the above-mentioned device embodiments are implemented.

[0094] Exemplarily, the computer program 82 can be divided into one or more modules / units, and the one or more modules / units are stored in the memory 81 and executed by the processor 80 to complete the present application. The one or more modules / units can be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program 82 in the state display device 8 of the energy storage system.

[0095] The state display device 8 of the energy storage system can be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The state display device of the energy storage system may include, but is not limited to, a processor 80 and a memory 81. Those skilled in the art can understand, Figure 8It is only an example of the state display device 8 of an energy storage system, and does not constitute a limitation on the state display device 8 of the energy storage system. It may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, the state display device of the energy storage system may also include an input / output device, a network access device, a bus, etc.

[0096] The so-called processor 80 may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0097] The memory 81 may be an internal storage unit of the state display device 8 of the energy storage system, such as the hard disk or memory of the state display device 8 of the energy storage system. The memory 81 may also be an external storage device of the state display device 8 of the energy storage system, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the state display device 8 of the energy storage system. Further, the memory 81 may also include both an internal storage unit and an external storage device of the state display device 8 of the energy storage system. The memory 81 is used to store the computer program and other programs and data required by the state display device of the energy storage system. The memory 81 may also be used to temporarily store data that has been output or is to be output.

[0098] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the above-mentioned division of each functional unit and module is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for the convenience of mutual distinction and do not limit the protection scope of this application. The specific working processes of the units and modules in the above system can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated here.

[0099] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0100] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. A professional technician can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0101] In the embodiments provided in this application, it should be understood that the disclosed device / terminal device and method can be implemented in other ways. For example, the device / terminal device embodiments described above are only illustrative. For example, the division of the above-mentioned module or unit is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical, mechanical or other form.

[0102] The unit described as a separated component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it can be located in one place, or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0103] In addition, in each embodiment of the present application, each functional unit can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0104] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, to implement all or part of the processes in the above-mentioned embodiment methods of the present application, it can also be completed by hardware related to computer program instructions. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above-mentioned various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device that can carry the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0105] In addition, the embodiments of the present application also provide a computer program product, which when running on a computer, enables the computer to execute the methods in the above-mentioned various implementation manners.

[0106] The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for displaying the state of an energy storage system, characterized in that, The method includes: Determine the connection relationship of the node devices of the energy storage system, and generate a topological structure diagram of the energy storage system according to the connection relationship of the node devices; Obtain the operation mode of the energy storage system, and determine the power transmission direction of the first branch set in the topological structure diagram according to the operation mode; Collect the power transmission direction of the second branch set in the topological structure diagram, where the second branch set is the branch set other than the first branch set in the topological structure diagram; According to the power transmission direction of the first branch set and the power transmission direction of the second branch set, control the way of the energy identifier moving on the branch between two adjacent nodes in the topological structure diagram for real-time status display; The operation mode includes a grid priority mode, an energy storage priority mode, and a load priority mode; the topological structure diagram includes a renewable node, an energy storage node, a grid node, a power conversion node, and a load node; Determining the power transmission direction of the first branch set in the topological structure diagram according to the operation mode includes: When the operation mode is the grid priority mode, determine the power transmission direction of the branch between the grid node and the power conversion node, and the branch between the power conversion node and the load node in the topological structure diagram according to the grid priority mode; When the operation mode is the energy storage priority mode, determine the power transmission direction of the branch between the energy storage node and the power conversion node, and the branch between the power conversion node and the load node in the topological structure diagram according to the energy storage priority mode; When the operation mode is the load priority mode, determine the power transmission direction of the branch between the power conversion node and the load node in the topological structure diagram according to the load priority mode.

2. The method according to claim 1, wherein Before controlling the way of the energy identifier moving on the branch between two adjacent nodes in the topological structure diagram for real-time status display according to the power transmission direction of the first branch set and the power transmission direction of the second branch set, the method further includes: Collect the transmitted power between two adjacent nodes in the topological structure diagram; Determine the moving speed of the energy identifier on the branch between two adjacent nodes in the topological structure diagram according to the corresponding relationship between the predicted transmitted power and the speed; Controlling the way of the energy identifier moving on the branch between two adjacent nodes in the topological structure diagram for real-time status display according to the power transmission direction of the first branch set and the power transmission direction of the second branch set includes: According to the power transmission direction of the first branch set and the power transmission direction of the second branch set, combined with the moving speed of the energy identifier on each branch, control the way of the energy identifier moving on the branch between two adjacent nodes in the topological structure diagram for real-time status display.

3. The method according to claim 2, characterized in that, Determining the moving speed of the energy identifier on the branch between two adjacent nodes in the topological structure diagram according to the corresponding relationship between the predicted transmitted power and the speed includes: When the electric energy of the first branch for which the moving speed of the energy identifier is to be determined comes from more than two branches, set more than two channels for displaying the energy identifier on the first branch; Determine the moving speed of the energy identifier in the two or more channels according to the preset correspondence between the transmission power and the speed.

4. The method according to claim 3, wherein Determine the moving speed of the energy identifier in the two or more channels according to the predicted correspondence between the transmission power and the speed, including: Determine the total speed of the first branch according to the preset correspondence between the transmission power and the speed. Determine the moving speed of the energy identifier in the two or more channels according to the power ratio of the two or more branches of the power source of the first branch and in combination with the total speed.

5. The method according to claim 4, characterized in that, After determining the moving speed of the energy identifier in the two or more channels according to the power ratio of the two or more branches of the power source of the first branch and in combination with the total speed, the method further includes: Determine the appearance of the energy identifier in the two or more channels according to the appearance of the energy identifier of the two or more branches of the power source of the first branch.

6. The method according to any one of claims 1-5, characterized in that, After determining the connection relationship of the node devices of the energy storage system and generating the topological structure diagram of the energy storage system according to the connection relationship of the node devices, the method further includes: Receive a time setting instruction, where the time setting instruction includes a time range for displaying energy changes. Determine the energy transfer amount between two adjacent nodes in the topological structure diagram according to the time range. Display the energy transfer amount on the branch between two adjacent nodes in the topological structure diagram.

7. A state display device for an energy storage system, characterized in that, The device includes: A topological structure diagram generation unit, configured to determine the connection relationship of the node devices of the energy storage system and generate the topological structure diagram of the energy storage system according to the connection relationship of the node devices. A first direction determination unit, configured to obtain the operation mode of the energy storage system and determine the power transmission direction of the first branch set in the topological structure diagram according to the operation mode, where the operation mode includes a grid priority mode, an energy storage priority mode, and a load priority mode; the topological structure diagram includes a renewable node, an energy storage node, a grid node, a power conversion node, and a load node; when the operation mode is the grid priority mode, determine the power transmission direction of the branch between the grid node and the power conversion node and the branch between the power conversion node and the load node in the topological structure diagram according to the grid priority mode; when the operation mode is the energy storage priority mode, determine the power transmission direction of the branch between the energy storage node and the power conversion node and the branch between the power conversion node and the load node in the topological structure diagram according to the energy storage priority mode; when the operation mode is the load priority mode, determine the power transmission direction of the branch between the power conversion node and the load node in the topological structure diagram according to the load priority mode. A second direction determination unit, configured to collect the power transmission direction of the second branch set in the topological structure diagram, where the second branch set is the branch set other than the first branch set in the topological structure diagram. The real-time status display unit is configured to perform real-time status display by controlling the way of moving the energy identifier on the branch between two adjacent nodes in the topological structure diagram according to the power transmission directions of the first branch set and the second branch set.

8. A state display device for an energy storage system, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, the status display device of the energy storage system implements the method described in any one of claims 1-6.

9. A computer program product, comprising computer program instructions, characterized in that, When the computer program is run, the method described in any one of claims 1-6 is executed.

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