Black start method and device, nonvolatile storage medium and computer equipment

Abstract

The application discloses a black start method and device, a nonvolatile storage medium and a computer device. The method comprises the following steps: determining the starting sequence of a plurality of first black start power nodes in a target area, wherein the target area is an area to be black started; acquiring a plurality of second black start power nodes located outside the target area; connecting the plurality of second black start power nodes with the plurality of first black start power nodes according to the starting sequence of the plurality of first black start power nodes, and starting a first power grid in the target area; and connecting a second power grid in the target area with the first power grid, and starting the second power grid. The application solves the technical problem that there is no scheme for the cooperative operation of the black start power nodes inside and outside the power grid in the prior art.

Description

Technical Field

[0001] This invention relates to the field of black boot, and more specifically, to a black boot method, apparatus, non-volatile storage medium, and computer device. Background Technology

[0002] In recent years, large-capacity, long-distance power transmission and AC / DC hybrid interconnection have become the norm in power grid operation. While high-voltage large power grid systems have brought significant benefits, they also objectively present potential threats. The grid has a relatively small stability margin, multiple DC feeder systems exist within the grid, voltage regulation in some areas is difficult, and the reactive power support capacity at the receiving end is insufficient. Furthermore, the grid's automatic safety devices are numerous, diverse, and have complex control strategies, resulting in relatively weak system damping. System stability fluctuates due to internal grid factors and external environmental disturbances. Once serious faults occur, such as multiple complex faults, loss of large power sources or important transmission lines at the receiving end, or malfunctions and failures of automatic safety devices, uncontrollable disasters can erupt. Because the subsystems are closely interconnected, a change in one can trigger a chain reaction, further amplifying the impact of the accident and seriously threatening the stable operation of the power system. In more severe cases, it could lead to the collapse and disconnection of the regional power grid. Most existing black-start schemes start with black-start power units within the regional power grid, lacking a coordinated scheme based on black-start power sources both inside and outside the grid.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] This invention provides a black-start method, apparatus, non-volatile storage medium, and computer device to at least solve the technical problem that there is no solution in the prior art based on the coordinated cooperation of black-start power sources inside and outside the power grid.

[0005] According to one aspect of the present invention, a black start method is provided, comprising: determining the start-up order of a plurality of first black start power nodes in a target area, wherein the target area is an area to be black started; acquiring a plurality of second black start power nodes located outside the target area; connecting the plurality of second black start power nodes to the plurality of first black start power nodes according to the start-up order of the plurality of first black start power nodes, and starting a first power grid in the target area; and connecting the second power grid in the target area to the first power grid, and starting the second power grid.

[0006] Optionally, determining the startup sequence of multiple first black start power nodes within the target area includes: acquiring the power information of each of the multiple first black start power nodes, wherein the power information includes power plant type, unit capacity and rated voltage; and determining the startup sequence of the multiple first black start power nodes based on their respective power information.

[0007] Optionally, the startup order of the multiple first black start power nodes is determined based on their respective power information, including: generating multiple black start capability values ​​corresponding one-to-one with the multiple first black start power nodes based on their respective power information; and determining the startup order of the multiple first black start power nodes based on the multiple black start capability values.

[0008] Optionally, based on the power information of each of the multiple first black start power nodes, multiple black start capability values ​​corresponding one-to-one with the multiple first black start power nodes are generated, including: obtaining multiple weight values ​​corresponding to power plant type, unit capacity and rated voltage respectively; and generating multiple black start capability values ​​corresponding one-to-one with the multiple first black start power nodes based on the multiple weight values ​​and the power plant type, unit capacity and rated voltage of the multiple first black start power nodes.

[0009] Optionally, connecting the second power grid within the target area to the first power grid and starting the second power grid includes: obtaining the connection relationship of power equipment within the target area and obtaining the first average voltage value after the first power grid is started; determining the target load based on the first average voltage value and the connection relationship; connecting the load to the first power grid based on the target load; determining the second average voltage value of the first power grid after the load is connected; and connecting the second power grid to the first power grid based on the second average voltage value and the connection relationship to start the second power grid.

[0010] Optionally, determining the target load based on the first average voltage value and the connection relationship includes: acquiring multiple load values; simulating the process of connecting the multiple load values ​​to the first power grid to obtain multiple first simulated voltage values ​​corresponding to the multiple load values, wherein the multiple first simulated voltage values ​​are the average voltage values ​​of the first power grid after connecting the multiple load values ​​to the first power grid; and determining the load value corresponding to the voltage value closest to the first average voltage value among the multiple first voltage values ​​as the target load value.

[0011] Optionally, based on the second average voltage value and the connection relationship, the second power grid is connected to the first power grid, and the second power grid is started to realize the black start process of the target area. This includes: determining multiple closing points based on the connection relationship; simulating the process of connecting the second power grid to the first power grid through the multiple closing points to obtain multiple second simulated voltage values ​​corresponding to the multiple closing points, wherein the multiple second simulated voltage values ​​are the average voltage values ​​in the target area after connecting the first power grid and the second power grid through the multiple closing points; determining the closing point corresponding to the voltage value closest to the second average voltage value among the multiple second simulated voltage values ​​as the target closing point; and connecting the second power grid to the first power grid through the target closing point.

[0012] According to another aspect of the present invention, a black-start device is also provided, comprising: a determining module, configured to determine the starting order of a plurality of first black-start power nodes in a target area, wherein the target area is an area to be black-started; an acquiring module, configured to acquire a plurality of second black-start power nodes located outside the target area; a first connecting module, configured to connect the plurality of second black-start power nodes to the plurality of first black-start power nodes according to the starting order of the plurality of first black-start power nodes, and start a first power grid in the target area; and a second connecting module, configured to connect a second power grid in the target area to the first power grid, and start a second power grid.

[0013] According to another aspect of the present invention, a non-volatile storage medium is also provided, the non-volatile storage medium including a stored program, wherein, when the program is running, the device where the non-volatile storage medium is located is controlled to execute any of the above-described black boot methods.

[0014] According to another aspect of the present invention, a computer device is also provided, the computer device including a processor for running a program, wherein the program executes any of the above-described black boot methods when it runs.

[0015] In this embodiment of the invention, by determining the startup sequence of multiple first black-start power nodes within a target area, wherein the target area is the area to be black-started; acquiring multiple second black-start power nodes located outside the target area; connecting the multiple second black-start power nodes to the multiple first black-start power nodes according to the startup sequence of the multiple first black-start power nodes, and starting the first power grid within the target area; connecting the second power grid within the target area to the first power grid, and starting the second power grid, the purpose of adding power nodes outside the target area to the black-start process within the target area is achieved, thereby realizing the technical effect of coordinated cooperation between black-start power points inside and outside the power grid, and thus solving the technical problem in the prior art that there is no solution based on the coordinated cooperation of black-start power points inside and outside the power grid. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 A hardware block diagram of a computer terminal for implementing the black boot method is shown.

[0018] Figure 2 This is a flowchart illustrating the black start method provided according to an embodiment of the present invention;

[0019] Figure 3This is a structural block diagram of a black start device provided according to an embodiment of the present invention. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0022] According to an embodiment of the present invention, a method embodiment for black boot is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0023] The method embodiment provided in Embodiment 1 of this application can be executed on a mobile terminal, computer terminal, or similar computing device. Figure 1 A hardware block diagram of a computer terminal for implementing the black boot method is shown. Figure 1 As shown, the computer terminal 10 may include one or more processors (shown as 102a, 102b, ..., 102n in the figure) (the processor may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of a BUS bus), a network interface, a power supply, and / or a camera. Those skilled in the art will understand that... Figure 1The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, computer terminal 10 may also include... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0024] It should be noted that the aforementioned one or more processors and / or other data processing circuits are generally referred to herein as "data processing circuits". These data processing circuits may be implemented wholly or partially as software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuits may be a single, independent processing module, or may be wholly or partially integrated into any other element in the computer terminal 10. As involved in the embodiments of this application, the data processing circuits serve as processor control (e.g., selection of a variable resistor termination path connected to an interface).

[0025] The memory 104 can be used to store software programs and modules of application software, such as the program instruction / data storage device corresponding to the black boot method in this embodiment of the invention. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory 104, thereby implementing the aforementioned black boot method of the application. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor, and these remote memories can be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0026] The display may be, for example, a touchscreen liquid crystal display (LCD) that allows the user to interact with the user interface of the computer terminal 10.

[0027] Figure 2 This is a flowchart illustrating the black start method provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the method includes the following steps:

[0028] Step S202: Determine the startup sequence of multiple first black start power nodes within the target area, where the target area is the area to be black started.

[0029] In this step, the target area is the area requiring a black start. During grid operation, certain faults may cause all electrical equipment in the target area, including electrical appliances and power plants, to stop working. In the event of a complete power outage in the target area, the process of self-starting electrical equipment within the target area gradually restoring power to all electrical equipment in the target area is called a black start. In the embodiments provided by this invention, the self-starting electrical equipment in the target area is the first black start power node. Generally, there are multiple first black start power nodes in the target area. During the black start process, the starting sequence of multiple first black start power nodes needs to be determined in advance to ensure the safe and stable operation of the power grid.

[0030] Step S204: Obtain multiple second black start power nodes located outside the target area.

[0031] In this step, the existing technology generally involves the self-starting of electrical equipment within the target area to restore power to all electrical equipment within the target area. However, in some areas, there are many electrical devices, but few have the ability to start automatically. It is difficult to rely solely on the black-start power nodes within the area. In this case, a power source that can work normally outside the target area can be used to supply power to the power grid within the target area, so that the target area can carry out the black-start process faster and more stably. The electrical devices outside the target area that participate in the black-start process within the target area are multiple second black-start power nodes.

[0032] Step S206: According to the startup sequence of the multiple first black start power nodes, connect the multiple second black start power nodes to the multiple first black start power nodes, and start the first power grid in the target area.

[0033] In this step, the coordinated black start process involves connecting a second, normally functioning black start power node outside the target area to the electrical equipment within the target area. This charges multiple first black start power nodes, enabling them to start up more quickly and thus facilitating the faster recovery of other electrical equipment within the target area. The first power grid can be a high-voltage grid within the target area, specifically a 500kV grid. The first step in starting the electrical equipment within the target area is to start the first power grid within that area. After the first power grid has successfully started and is operating stably, other electrical equipment within the target area can then be started.

[0034] Step S208: Connect the second power grid within the target area to the first power grid and start the second power grid.

[0035] In this step, after starting the first power grid within the target area, other electrical equipment can be connected to the first power grid. The first power grid charges and starts the other electrical equipment, achieving a black start for the target area. The second power grid is a power grid within the target area with a voltage lower than the first power grid. Specifically, it can be a 220kV power grid. After starting the 220kV power grid through the 500kV power grid, the electrical equipment can be connected to the 220kV power grid, achieving a black start for the target area.

[0036] Through the above steps, the goal of adding power nodes outside the target area to the black start process within the target area can be achieved, thereby realizing the technical effect of coordinated cooperation between black start power points inside and outside the power grid, and thus solving the technical problem that there is no solution based on the coordinated cooperation of black start power points inside and outside the power grid in the existing technology.

[0037] As an optional embodiment, determining the startup sequence of multiple first black start power nodes within the target area can be achieved through the following steps: obtaining the power information of each of the multiple first black start power nodes, wherein the power information includes power plant type, unit capacity and rated voltage; and determining the startup sequence of the multiple first black start power nodes based on their respective power information.

[0038] Optionally, before the black start process, the startup sequence of multiple first black start power nodes within the target area can be determined. First, the power information of each of the multiple first black start power nodes can be acquired. These black start power nodes are power plants. The acquired power information can include the type of power plant, the capacity of its generating units, and its rated voltage. The type of power plant can be thermal power or hydropower, etc. The generating unit capacity indicates the amount of electricity the power plant generates, and the rated voltage indicates the voltage at which the power plant can operate normally; a higher rated voltage indicates a more stable operation. Based on the power information of each of the multiple first black start power nodes, a suitable startup sequence for the first black start power nodes during the black start process can be determined.

[0039] As an optional embodiment, determining the startup order of the multiple first black-start power nodes based on their respective power information can be achieved through the following steps: generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on their respective power information; and determining the startup order of the multiple first black-start power nodes based on the multiple black-start capability values.

[0040] Optionally, the black-start capability of multiple first black-start power supplies can be evaluated based on their respective power information, generating multiple black-start capability values ​​corresponding to each first black-start power supply node. Based on these multiple black-start capability values, the startup order of the multiple first black-start power supplies can be determined. Power nodes with higher black-start capabilities can be started earlier, because a higher black-start capability means that the power node will be more stable during operation and will output more power. Starting the power supply with higher black-start capability first is beneficial to the smooth progress of the entire black-start process.

[0041] As an optional embodiment, generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on their respective power information can be achieved through the following steps: obtaining multiple weight values ​​corresponding to the power plant type, unit capacity, and rated voltage respectively; and generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on the multiple weight values ​​and the power plant type, unit capacity, and rated voltage of the multiple first black-start power nodes.

[0042] Optionally, when generating multiple black-start capability values, weights can be assigned to the three aspects of power information: power plant type, unit capacity, and rated voltage. Each weight represents the degree of importance placed on a particular parameter of the power plant during the black-start process. For example, if the most stable operation is required during the black-start process, a higher weight can be assigned to the rated voltage; if the fastest operation is required, a higher weight can be assigned to the unit capacity. After assigning weights to the three different aspects, the three aspects of each of the multiple first black-start power nodes can be scored sequentially based on their respective power information. Then, considering the different importance of the three aspects—power plant type, unit capacity, and rated voltage—based on the initially assigned weights, a comprehensive evaluation result is made for the black-start capability values ​​of the multiple first black-start power nodes, resulting in multiple black-start capability values.

[0043] As an optional embodiment, connecting the second power grid within the target area to the first power grid and starting the second power grid can be achieved through the following steps: obtaining the connection relationship of power equipment within the target area and obtaining the first average voltage value after the first power grid is started; determining the target load based on the first average voltage value and the connection relationship; connecting the load to the first power grid based on the target load; determining the second average voltage value of the first power grid after the load is connected; and connecting the second power grid to the first power grid based on the second average voltage value and the connection relationship to start the second power grid.

[0044] Optionally, after the first power grid is successfully started, since this invention provides a black start method that coordinates internal and external operations, providing power to the target area from power nodes that are functioning normally outside the target area, the electrical energy available for black start in the target area is relatively sufficient when starting the first power grid. Therefore, before connecting the second power grid to the first power grid, some important loads can be restored to power first. When starting some important loads and the second power grid based on the first power grid, the voltage value within the already started power grid in the target area can be considered, and the method for starting some important loads and the second power grid can be selected based on whether the voltage value is stable. After the first power grid is successfully started and operating stably, the first average voltage value within the first power grid can be obtained, and the target load amount that can be restored can be determined based on the first average voltage value and the connection relationship of the power equipment in the target area. Loads with power consumption matching the target restoration amount are connected to the first power grid; then, the second average voltage value of the first power grid after connecting some important loads is determined, and the second power grid is connected to the first power grid based on the second average voltage value.

[0045] As an optional embodiment, determining the target load based on the first average voltage value and the connection relationship can be achieved through the following steps: obtaining multiple load values; simulating the process of connecting the multiple load values ​​to the first power grid to obtain multiple first simulated voltage values ​​corresponding to the multiple load values, wherein the multiple first simulated voltage values ​​are the average voltage values ​​of the first power grid after connecting the multiple load values ​​to the first power grid; and determining the load value corresponding to the voltage value closest to the first average voltage value among the multiple first voltage values ​​as the target load value.

[0046] Optionally, during the restoration of power to some critical loads, to avoid transient voltage drops exceeding limits caused by load restoration, simulation methods can be used to determine the target load that can be restored, ensuring the safe and stable operation of the power grid. Multiple load values ​​can be obtained first based on the actual situation within the target area. For example, based on the importance of the loads within the target area, multiple schemes for restoring critical loads can be generated, each scheme corresponding to a load value that needs to be restored. After obtaining multiple load values, the process of connecting multiple load values ​​to the first power grid can be simulated based on the connection relationships within the target area. In other words, the multiple schemes for restoring critical loads can be simulated to obtain multiple simulation results. These multiple simulation results correspond one-to-one with multiple load values ​​to multiple first simulated voltage values, which are the average voltage values ​​of the first power grid during stable operation after connecting multiple load values. Based on these multiple first simulated voltage values, the target load value connected to the first power grid during this black start process can be obtained. It should be noted that when determining the target load based on multiple first simulated voltage values, different load values ​​corresponding to different first simulated voltage values ​​can be selected as the target load depending on the requirements of this black start. For example, the method provided in this optional embodiment mainly considers the stability during the black start process, so the load value corresponding to the first simulated voltage value when the voltage remains relatively stable after the load is connected is selected as the target load. That is, the load value corresponding to the scheme with the smallest difference between the average voltage value of the first power grid before the load is connected is selected as the target load. Alternatively, the amount of important load to be restored can be considered, and the load value corresponding to the scheme with the largest amount of load restored after the load is connected and the voltage remains stable is selected as the target load. That is, the maximum amount of load that can be restored without system collapse is selected as the target load.

[0047] As an optional embodiment, the second power grid is connected to the first power grid based on the second average voltage value and the connection relationship, and the second power grid is started to realize the black start process of the target area. This can be achieved through the following steps: determining multiple closing points based on the connection relationship; simulating the process of connecting the second power grid to the first power grid through the multiple closing points to obtain multiple second simulated voltage values ​​corresponding to the multiple closing points, wherein the multiple second simulated voltage values ​​are the average voltage values ​​in the target area after connecting the first power grid and the second power grid through the multiple closing points; determining the closing point corresponding to the voltage value closest to the second average voltage value among the multiple second simulated voltage values ​​as the target closing point; and connecting the second power grid to the first power grid through the target closing point.

[0048] Optionally, after the first power grid has been successfully started and is operating safely and stably with the cooperation of internal and external systems, other power equipment can be started based on the first power grid. Some important loads can be connected to the first power grid first, and then the second power grid can be connected to the first power grid. Before connecting the second power grid to the first power grid, the connection relationships of power equipment within the target area can be obtained. These connections can be represented as a power grid connection diagram, and multiple nodes suitable for connecting to the second power grid, i.e., multiple closing points, can be generated based on the power grid connection diagram. Then, through simulation using the power grid connection diagram, the second power grid is connected to the successfully started first power grid through these multiple closing points, resulting in multiple second simulated voltage values ​​corresponding to each closing point. These multiple second simulated voltage values ​​are the average voltage values ​​within the target area after connecting the first and second power grids through these multiple closing points. Based on these multiple second simulated voltage values, the closing point corresponding to the second simulated voltage value closest to the second average voltage value can be selected as the target closing point. After determining the target closing point, the second power grid can be connected to the first power grid through the target closing point, thus realizing the startup process of the second power grid and ultimately achieving the entire black start process.

[0049] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, because according to the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0050] Through the above description of the embodiments, those skilled in the art can clearly understand that the black boot method according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0051] According to an embodiment of the present invention, an apparatus for implementing the above-described black-start method is also provided. Figure 3 This is a structural block diagram of the black start device provided according to an embodiment of the present invention, such as... Figure 3 As shown, the device includes: a determining module 32, an acquiring module 34, a first connecting module 36, and a first connecting module 38. The black start device will be described below.

[0052] The determination module 32 is used to determine the startup sequence of multiple first black start power nodes in the target area, wherein the target area is the area to be black started.

[0053] The acquisition module 34, connected to the determination module 32, is used to acquire multiple second black start power nodes located outside the target area.

[0054] The first connection module 36 is connected to the acquisition module 34 and is used to connect multiple second black start power nodes to multiple first black start power nodes according to the start-up order of multiple first black start power nodes, and start the first power grid in the target area.

[0055] The first connection module 38, connected to the first connection module 36, is used to connect the second power grid within the target area to the first power grid and start the second power grid.

[0056] It should be noted that the aforementioned determining module 32, obtaining module 34, first connection module 36, and first connection module 38 correspond to steps S202 to S208 in the embodiments. Multiple modules implement the same instances and application scenarios as their corresponding steps, but are not limited to the content disclosed in the above embodiments. It should also be noted that the aforementioned modules, as part of the device, can run on the computer terminal 10 provided in the embodiments.

[0057] Embodiments of the present invention may provide a computer device. Optionally, in this embodiment, the computer device may be located in at least one of a plurality of network devices in a computer network. The computer device includes a memory and a processor.

[0058] The memory can be used to store software programs and modules, such as the program instructions / modules corresponding to the black boot method and apparatus in this embodiment of the invention. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory, thereby realizing the aforementioned black boot method. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory remotely located relative to the processor, and these remote memories can be connected to a computer terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0059] The processor can invoke information and application programs stored in memory via a transmission device to perform the following steps: determining the startup order of multiple first black-start power nodes in a target area, wherein the target area is the area to be black-started; acquiring multiple second black-start power nodes located outside the target area; connecting the multiple second black-start power nodes to the multiple first black-start power nodes according to the startup order of the multiple first black-start power nodes, and starting the first power grid in the target area; connecting the second power grid in the target area to the first power grid, and starting the second power grid.

[0060] Optionally, the processor may also execute program code that performs the following steps: determining the startup order of multiple first black start power nodes in the target area, including: acquiring the power information of each of the multiple first black start power nodes, wherein the power information includes power plant type, unit capacity and rated voltage; and determining the startup order of the multiple first black start power nodes based on the power information of each of the multiple first black start power nodes.

[0061] Optionally, the processor may also execute program code that performs the following steps: determining the startup order of the multiple first black-start power nodes based on their respective power information, including: generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on their respective power information; and determining the startup order of the multiple first black-start power nodes based on the multiple black-start capability values.

[0062] Optionally, the processor may also execute program code that performs the following steps: generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on their respective power information, including: obtaining multiple weight values ​​corresponding to power plant type, unit capacity and rated voltage respectively; and generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on the multiple weight values ​​and the power plant type, unit capacity and rated voltage of the multiple first black-start power nodes.

[0063] Optionally, the processor may also execute program code for the following steps: connecting a second power grid within the target area to a first power grid and starting the second power grid, including: obtaining the connection relationship of power equipment within the target area and obtaining a first average voltage value after the first power grid is started; determining the target load based on the first average voltage value and the connection relationship; connecting a load to the first power grid based on the target load; determining a second average voltage value of the first power grid after the load is connected; and connecting the second power grid to the first power grid based on the second average voltage value and the connection relationship, thereby starting the second power grid.

[0064] Optionally, the processor may also execute program code for the following steps: determining the target load based on the first average voltage value and the connection relationship, including: acquiring multiple loads; simulating the process of connecting the multiple loads to the first power grid to obtain multiple first simulated voltage values ​​corresponding to the multiple loads, wherein the multiple first simulated voltage values ​​are the average voltage values ​​of the first power grid after connecting the multiple loads to the first power grid; and determining the load corresponding to the voltage value closest to the first average voltage value among the multiple first voltage values ​​as the target load based on the first average voltage value.

[0065] Optionally, the processor may also execute program code for the following steps: connecting the second power grid to the first power grid based on the second average voltage value and the connection relationship, starting the second power grid, and realizing the black start process of the target area, including: determining multiple closing points based on the connection relationship; simulating the process of connecting the second power grid to the first power grid through the multiple closing points to obtain multiple second simulated voltage values ​​corresponding one-to-one with the multiple closing points, wherein the multiple second simulated voltage values ​​are the average voltage values ​​in the target area after connecting the first power grid and the second power grid through the multiple closing points; determining the closing point corresponding to the voltage value closest to the average voltage value after the first power grid is started as the target closing point based on the second average voltage value among the multiple second simulated voltage values; and connecting the second power grid to the first power grid through the target closing point.

[0066] This invention provides a black start scheme. In this embodiment, the startup order of multiple first black start power nodes within a target area (the area to be black started) is determined; multiple second black start power nodes located outside the target area are acquired; according to the startup order of the multiple first black start power nodes, the multiple second black start power nodes are connected to the multiple first black start power nodes, and a first power grid within the target area is started; the second power grid within the target area is connected to the first power grid, and the second power grid is started. This achieves the goal of adding power nodes outside the target area to the black start process within the target area, thereby realizing the technical effect of coordinated cooperation between black start power points inside and outside the power grid, and solving the technical problem in the prior art of lacking a scheme based on the coordinated cooperation of black start power points inside and outside the power grid.

[0067] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing the hardware related to the terminal device. The program can be stored in a non-volatile storage medium, which may include: flash drive, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc.

[0068] Embodiments of the present invention also provide a non-volatile storage medium. Optionally, in this embodiment, the aforementioned non-volatile storage medium can be used to store the program code executed by the black boot method provided in the above embodiments.

[0069] Optionally, in this embodiment, the non-volatile storage medium may be located in any computer terminal in a group of computer terminals in a computer network, or in any mobile terminal in a group of mobile terminals.

[0070] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: determining the startup order of a plurality of first black-start power nodes in a target area, wherein the target area is the area to be black-started; acquiring a plurality of second black-start power nodes located outside the target area; connecting the plurality of second black-start power nodes to the plurality of first black-start power nodes according to the startup order of the plurality of first black-start power nodes, and starting the first power grid in the target area; connecting the second power grid in the target area to the first power grid, and starting the second power grid.

[0071] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: determining the startup order of multiple first black-start power nodes in the target area, including: acquiring the power information of each of the multiple first black-start power nodes, wherein the power information includes power plant type, unit capacity and rated voltage; and determining the startup order of the multiple first black-start power nodes based on the power information of each of the multiple first black-start power nodes.

[0072] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: determining the startup order of the multiple first black-start power nodes based on their respective power information, including: generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on their respective power information; and determining the startup order of the multiple first black-start power nodes based on their multiple black-start capability values.

[0073] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on the power information of each of the multiple first black-start power nodes, including: obtaining multiple weight values ​​corresponding to the power plant type, unit capacity, and rated voltage respectively; and generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on the multiple weight values ​​and the power plant type, unit capacity, and rated voltage of the multiple first black-start power nodes.

[0074] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: connecting a second power grid within a target area to a first power grid and starting the second power grid, including: obtaining the connection relationship of power equipment within the target area and obtaining a first average voltage value after the first power grid is started; determining a target load based on the first average voltage value and the connection relationship; connecting a load to the first power grid based on the target load; determining a second average voltage value of the first power grid after the load is connected; and connecting the second power grid to the first power grid based on the second average voltage value and the connection relationship, thereby starting the second power grid.

[0075] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: determining the target load based on a first average voltage value and connection relationships, including: acquiring multiple load values; simulating the process of connecting the multiple load values ​​to the first power grid, obtaining multiple first simulated voltage values ​​corresponding to the multiple load values, wherein the multiple first simulated voltage values ​​are the average voltage values ​​of the first power grid after connecting the multiple load values ​​to the first power grid; and determining the load value corresponding to the voltage value closest to the first average voltage value among the multiple first voltage values ​​as the target load value.

[0076] Optionally, in this embodiment, the non-volatile storage medium is configured to store program code for performing the following steps: connecting the second power grid to the first power grid according to the second average voltage value and the connection relationship, starting the second power grid, and realizing the black start process of the target area, including: determining multiple closing points according to the connection relationship; simulating the process of connecting the second power grid to the first power grid through the multiple closing points to obtain multiple second simulated voltage values ​​corresponding one-to-one with the multiple closing points, wherein the multiple second simulated voltage values ​​are the average voltage values ​​in the target area after connecting the first power grid and the second power grid through the multiple closing points; determining the closing point corresponding to the voltage value closest to the average voltage value after the first power grid is started as the target closing point according to the second average voltage value; and connecting the second power grid to the first power grid through the target closing point.

[0077] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0078] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0079] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0080] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0081] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0082] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a non-volatile storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0083] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A black start method, characterized in that, include: Determine the startup sequence of multiple first black-start power nodes within a target area, wherein the target area is the area to be black-started, and the first black-start power nodes are power devices within the target area that have self-starting capabilities. Acquire multiple second black-start power nodes located outside the target area; According to the startup sequence of the plurality of first black start power nodes, the plurality of second black start power nodes are connected to the plurality of first black start power nodes, and the first power grid in the target area is started. Connect the second power grid within the target area to the first power grid, and start the second power grid; The step of determining the startup sequence of multiple first black-start power nodes within the target area includes: acquiring the power information of each of the multiple first black-start power nodes, wherein the power information includes power plant type, unit capacity, and rated voltage; generating multiple black-start capability values ​​corresponding one-to-one with each of the multiple first black-start power nodes based on the power information of each of the multiple first black-start power nodes; and determining the startup sequence of the multiple first black-start power nodes based on the multiple black-start capability values. The step of generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on their respective power information includes: obtaining multiple weight values ​​corresponding to the power plant type, the unit capacity, and the rated voltage; and generating multiple black-start capability values ​​corresponding one-to-one with the multiple first black-start power nodes based on the multiple weight values ​​and the power plant type, the unit capacity, and the rated voltage of the multiple first black-start power nodes. The step of connecting the second power grid within the target area to the first power grid and starting the second power grid includes: acquiring the connection relationship of power equipment within the target area and acquiring the first average voltage value after the first power grid is started; determining a target load based on the first average voltage value and the connection relationship, wherein the target load is the maximum load that can be recovered without system collapse; connecting a load to the first power grid based on the target load; determining the second average voltage value of the first power grid after connecting the load; determining multiple closing points based on the connection relationship; simulating the process of connecting the second power grid to the first power grid through the multiple closing points to obtain multiple second simulated voltage values ​​corresponding one-to-one with the multiple closing points, wherein the multiple second simulated voltage values ​​are the average voltage values ​​within the target area after connecting the first power grid and the second power grid through the multiple closing points; determining the closing point corresponding to the voltage value closest to the second average voltage value among the multiple second simulated voltage values ​​as the target closing point; and connecting the second power grid to the first power grid through the target closing point.

2. The method according to claim 1, characterized in that, Determining the target load based on the first average voltage value and the connection relationship includes: Obtain multiple load values; The process of connecting the loads of the multiple load quantities to the first power grid is simulated to obtain multiple first simulated voltage values ​​corresponding to the multiple load quantities. The multiple first simulated voltage values ​​are the average voltage values ​​of the first power grid after the loads of the multiple load quantities are connected to the first power grid. Based on the first average voltage value, the load corresponding to the voltage value closest to the first average voltage value among the plurality of first simulated voltage values ​​is determined as the target load.

3. A black-start device, characterized in that, include: The determination module is used to determine the startup order of multiple first black-start power nodes in a target area, wherein the target area is the area to be black-started, and the first black-start power node is a power device with self-starting capability in the target area. The acquisition module is used to acquire multiple second black-start power nodes located outside the target area; The first connection module is used to connect the plurality of second black-start power nodes to the plurality of first black-start power nodes according to the startup order of the plurality of first black-start power nodes, and to start the first power grid in the target area. The second connection module is used to connect the second power grid within the target area to the first power grid and to start the second power grid. The determining module is further configured to acquire the power information of each of the plurality of first black start power nodes, wherein the power information includes power plant type, unit capacity and rated voltage; generate a plurality of black start capability values ​​corresponding one-to-one with the plurality of first black start power nodes based on the power information of each of the plurality of first black start power nodes; and determine the starting order of the plurality of first black start power nodes based on the plurality of black start capability values. The determining module is further configured to acquire multiple weight values ​​corresponding to the power plant type, the unit capacity, and the rated voltage respectively; and generate multiple black start capability values ​​corresponding one-to-one with the multiple first black start power nodes based on the multiple weight values ​​and the power plant type, unit capacity, and rated voltage of the multiple first black start power nodes. The second connection module is further configured to: acquire the connection relationships of power equipment within the target area; acquire the first average voltage value after the first power grid is started; determine the target load based on the first average voltage value and the connection relationships, wherein the target load is the maximum load that can be recovered without system failure; connect the load to the first power grid based on the target load; determine the second average voltage value of the first power grid after connecting the load; determine multiple closing points based on the connection relationships; simulate the process of connecting the second power grid to the first power grid through the multiple closing points to obtain multiple second simulated voltage values ​​corresponding one-to-one with the multiple closing points, wherein the multiple second simulated voltage values ​​are the average voltage values ​​within the target area after connecting the first power grid and the second power grid through the multiple closing points; determine the closing point corresponding to the voltage value closest to the second average voltage value among the multiple second simulated voltage values ​​as the target closing point; and connect the second power grid to the first power grid through the target closing point.

4. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the non-volatile storage medium to perform the black boot method according to any one of claims 1 to 2.

5. A computer device, characterized in that, include: Memory and processor The memory stores computer programs; The processor is configured to execute a computer program stored in the memory, wherein when the computer program is executed, the processor performs the black boot method according to any one of claims 1 to 2.

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