DC power transmission system blocking factor analysis and control method, device and equipment, storage medium and program product

Abstract

The invention relates to a DC power transmission system blocking factor analysis and control method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the steps that a locking event causing locking of a target direct-current power transmission system is acquired, a corresponding locking logic tree is constructed according to the locking event, and the locking logic tree is used for representing a triggering condition of the locking event; determining a target device from a plurality of devices of the target direct current power transmission system according to the blocking logic tree and the circuit information of the target direct current power transmission system; and performing locking analysis on the target equipment to determine a locking factor of the target equipment causing locking of the target DC power transmission system, and managing and controlling the target equipment based on the locking factor. By adopting the method, the efficiency of managing and controlling the direct-current power transmission system based on the blocking factor can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of power systems, and in particular to a method, device, computer equipment, computer-readable storage medium and computer program product for analyzing and controlling locking factors of a direct current transmission system. Background Art

[0002] DC blocking refers to the act of quickly disconnecting the fault circuit through specific control commands in a DC transmission system when an abnormality or fault is detected to prevent the fault from expanding and protect the safety of equipment. After DC blocking, a large amount of surplus power in the DC transmission system may cause equipment damage, thus affecting the stable operation of the power grid.

[0003] In the prior art, most of them are based on manual analysis of DC blocking factors, and then the DC transmission system is controlled based on the analysis results.

[0004] However, manual analysis of DC blocking factors is not only inaccurate but also costly, which leads to low efficiency in controlling the DC transmission system based on the analysis results. Summary of the invention

[0005] Based on this, it is necessary to provide a method, device, computer equipment, computer-readable storage medium and computer program product for analyzing and controlling locking factors of a DC transmission system, which can improve the efficiency of analyzing and controlling locking factors of a DC transmission system, in response to the above-mentioned technical problems.

[0006] In a first aspect, the present application provides a method for analyzing and controlling blocking factors of a direct current transmission system, including:

[0007] Acquire a blocking event that causes the target DC power transmission system to be blocked, and construct a corresponding blocking logic tree according to the blocking event, wherein the blocking logic tree is used to characterize a triggering condition of the blocking event;

[0008] Determining a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system;

[0009] A locking analysis is performed on the target device to determine the locking factor of the target device that causes the target DC power transmission system to have a locking problem, and the target device is controlled based on the locking factor.

[0010] In one of the embodiments, constructing a corresponding locking logic tree according to the locking event includes: constructing a locking logic tree corresponding to the locking event according to the locking event and a control protection program of the target DC transmission system.

[0011] In one of the embodiments, the target device is subjected to a locking analysis to determine the locking factor of the target device that causes the target DC transmission system to be locked, including: performing a first locking analysis on each device in the target device to determine the first locking factor; combining any two devices in the target device and performing a second locking analysis on the combined device to determine the second locking factor; and determining the first locking factor and the second locking factor as the locking factor.

[0012] In one of the embodiments, a first locking analysis is performed on each of the target devices to determine a first locking factor, including: for each of the target devices, obtaining multiple fault information of the device, and determining whether the fault indicated by each fault information will cause the target DC transmission system to be locked; and determining the fault information corresponding to the fault that causes the target DC transmission system to be locked as the first locking factor.

[0013] In one of the embodiments, any two of the target devices are combined, and a second locking analysis is performed on the combined devices to determine a second locking factor, including: combining fault information of any two of the target devices to obtain multiple combined fault information, and determining whether the combined faults indicated by each of the combined fault information will cause the target DC transmission system to be locked; and determining the combined fault information corresponding to the combined fault that causes the target DC transmission system to be locked as the second locking factor.

[0014] In one of the embodiments, the target device is controlled based on the blocking factor, including: constructing a blocking factor summary list according to the blocking factor; and controlling the target device according to the blocking factor summary list.

[0015] In a second aspect, the present application also provides a device for analyzing and controlling blocking factors of a DC transmission system, including:

[0016] An acquisition module, used for acquiring a blocking event that causes the target DC power transmission system to be blocked, and constructing a corresponding blocking logic tree according to the blocking event, wherein the blocking logic tree is used for representing a triggering condition of the blocking event;

[0017] A determination module, configured to determine a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system;

[0018] The execution module is used to perform a blocking analysis on the target device to determine the blocking factor of the target device causing the target DC power transmission system to be blocked, and to control the target device based on the blocking factor.

[0019] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method described in any embodiment of the first aspect when executing the computer program.

[0020] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any embodiment of the first aspect above.

[0021] In a fifth aspect, the present application further provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the method described in any embodiment of the first aspect above.

[0022] The above-mentioned DC transmission system locking factor analysis and control method, device, computer equipment, computer-readable storage medium and computer program product first obtain the locking event that causes the target DC transmission system to be locked, and construct a corresponding locking logic tree according to the locking event, and the locking logic tree is used to characterize the triggering condition of the locking event; then, according to the locking logic tree and the circuit information of the target DC transmission system, the target device is determined from multiple devices of the target DC transmission system; the target device is locked. Analysis is performed on the target device to determine the locking factor of the target device that causes the target DC transmission system to be locked, and the target device is controlled based on the locking factor. The DC transmission system locking factor analysis and control method provided in the present application reduces labor costs compared to manual DC locking factor analysis in the prior art. Moreover, since in the present application the target device is first determined based on the locking event, and then the locking analysis is performed on each of the target devices to obtain the locking factors, and then the target DC transmission system is controlled based on the locking factors, the locking factors obtained by analysis have higher accuracy and comprehensiveness, thereby improving the efficiency of controlling the DC transmission system based on the locking factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of a flow chart of a method for analyzing and controlling blocking factors of a DC transmission system in one embodiment;

[0025] Figure 2A schematic flow chart of a method for determining a blocking factor of the target device causing the target direct current power transmission system to be blocked in one embodiment;

[0026] Figure 3 A schematic flow chart of a method for determining a first blocking factor in one embodiment;

[0027] Figure 4 A schematic flow chart of a method for determining a second blocking factor in one embodiment;

[0028] Figure 5 is a flow chart of a method for controlling the target device based on the blocking factor in one embodiment;

[0029] Figure 6 A schematic flow chart of a method for analyzing and controlling blocking factors of a DC power transmission system in another embodiment;

[0030] Figure 7 It is a structural block diagram of a device for analyzing and controlling blocking factors of a DC power transmission system in one embodiment;

[0031] Figure 8 is an internal structure diagram of a computer device in one embodiment;

[0032] Fig. 9 FIG. 4 is a diagram showing the internal structure of a computer device in another embodiment. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] DC blocking refers to the act of quickly disconnecting the fault circuit through specific control commands in a DC transmission system when an abnormality or fault is detected to prevent the fault from expanding and protect the safety of equipment. After DC blocking, a large amount of surplus power in the DC transmission system may cause equipment damage, thus affecting the stable operation of the power grid.

[0035] In the prior art, most of them are based on manual analysis of DC blocking factors, and then the DC transmission system is controlled based on the analysis results.

[0036] However, manual analysis of DC blocking factors is not only inaccurate but also costly, which leads to low efficiency in controlling the DC transmission system based on the analysis results.

[0037] In view of this, the present application provides a method for analyzing and controlling locking factors of a DC transmission system, which is not only low in cost but also has high accuracy in analyzing DC locking factors, thereby improving the efficiency of controlling the DC transmission system based on locking factors.

[0038] The DC transmission system locking factor analysis and control method provided in the present application can be executed by a computer device, which can be a terminal or a server.

[0039] In an exemplary embodiment, Figure 1 As shown, a method for analyzing and controlling blocking factors of a DC transmission system is provided, and the method comprises the following steps:

[0040] Step 101: Obtain a blocking event that causes a target DC power transmission system to be blocked, and construct a corresponding blocking logic tree according to the blocking event.

[0041] The locking logic tree is used to represent the triggering condition of the locking event.

[0042] Optionally, the DC power transmission system refers to a system that utilizes high voltage direct current to transmit power, and the target DC power transmission system refers to a DC power transmission system to be controlled.

[0043] This interlock refers to DC interlock, which refers to the behavior of quickly disconnecting the fault circuit through specific control commands in the DC transmission system when an abnormality or fault is detected to prevent the fault from expanding and protect the safety of equipment.

[0044] The logic tree is also called problem tree, deduction tree or decomposition tree, which refers to a method of analyzing existing problems and their interrelationships in a tree-like graph. The closed logic tree refers to a logic tree used to analyze closed events.

[0045] In some exemplary embodiments, all blocking events that may cause the target DC power transmission system to be blocked may be acquired based on a control and protection program of the target DC power transmission system.

[0046] In some other exemplary embodiments, all blocking events that may cause the target DC power transmission system to be blocked may also be acquired according to the historical data of the target DC power transmission system.

[0047] Furthermore, after obtaining the blocking event that causes the target DC power transmission system to be blocked, a corresponding blocking logic tree may be constructed according to the blocking event, that is, a blocking logic tree is correspondingly set for each blocking event.

[0048] In some exemplary embodiments, the acquired locking events may be respectively input into a pre-trained locking logic tree construction model to obtain a locking logic tree corresponding to each locking event output by the locking logic tree construction model.

[0049] In some other exemplary embodiments, a blocking logic tree corresponding to the blocking event may also be constructed according to the blocking event and the control and protection program of the target DC power transmission system.

[0050] Step 102: Determine a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system.

[0051] Optionally, the target device refers to the device involved when the target DC power transmission system is locked. The circuit information may be a secondary wiring diagram, such as a completion diagram of the target DC power transmission system or a manufacturer's blank diagram of the target DC power transmission system.

[0052] In some exemplary embodiments, the target device may be determined from a plurality of devices of the target DC transmission system according to the blocking logic tree and the circuit information of the target DC transmission system. Exemplarily, the target DC transmission system input link hardware device may be determined according to the blocking logic tree and the circuit information of the target DC transmission system, and the blocking exit signal may be identified from the trip matrix exit to the hardware device of the host IO unit based on the circuit information through the blocking logic software.

[0053] Specifically, the board corresponding to the control protection program is identified through the locking logic software position, and the components involved in the secondary link are identified through circuit information, including: the device (board) connected to the transmission medium, the type of transmission medium (optical fiber, bus, LAN network, coaxial cable, etc.), the connection equipment of the transmission medium (optical fiber distribution frame, optical fiber fusion box, optoelectronic conversion module, repeater, etc., terminal resistor), communication equipment (switches, routers, bridges, etc.), secondary circuit contact equipment (relays, travel switches, auxiliary contacts, etc.), secondary circuits and their connection terminals.

[0054] Furthermore, after the auxiliary contacts are determined by the above method, the corresponding key components (such as relays, meters, sensors, emergency lock buttons, etc.) and the primary devices associated with them (such as voltage dividers, bushings, converters, switches, knife switches, grounding knives, valve hall doors, etc.) can also be determined. At this time, the auxiliary nodes are no longer used as target devices. Then, the primary devices and related components related to the power protection measurement points are determined through the primary device diagram, main wiring diagram and protection logic of the control protection program in the circuit information. Finally, the above devices and components are determined as the target devices.

[0055] Step 103: performing a blocking analysis on the target device to determine a blocking factor of the target device causing the target DC power transmission system to be blocked, and controlling the target device based on the blocking factor.

[0056] In some exemplary embodiments, a lockout analysis may be performed on the target device based on a pre-trained lockout analysis model to determine a lockout factor of the target device causing the target DC power transmission system to be locked. Specifically, the target device may be input into the lockout analysis model to obtain the lockout factor output by the lockout analysis model.

[0057] Furthermore, after determining the blocking factor of the target device, the target device can be controlled based on the blocking factor. Specifically, the control strategy can be set according to the blocking factor, and the target device can be controlled based on the control strategy.

[0058] The above-mentioned DC transmission system locking factor analysis and control method first obtains the locking event that causes the target DC transmission system to be locked, and constructs a corresponding locking logic tree according to the locking event, and the locking logic tree is used to characterize the triggering condition of the locking event; then, according to the locking logic tree and the circuit information of the target DC transmission system, the target device is determined from multiple devices of the target DC transmission system; the target device is locked to determine the locking factor that causes the target device to lock the target DC transmission system, and the target device is controlled based on the locking factor. The DC transmission system locking factor analysis and control method provided by the present application reduces the labor cost compared with the manual DC locking factor analysis in the prior art. Moreover, since the target device is first determined based on the locking event, and then the locking analysis is performed on the target device to obtain the locking factor, and then the target DC transmission system is controlled based on the locking factor, the locking factor obtained by analysis has higher accuracy and comprehensiveness, thereby improving the efficiency of controlling the DC transmission system based on the locking factor.

[0059] In an exemplary embodiment, constructing a corresponding locking logic tree according to the locking event includes: constructing a locking logic tree corresponding to the locking event according to the locking event and a control protection program of the target DC power transmission system.

[0060] In some exemplary embodiments, a lockout logic tree corresponding to the lockout event can be constructed according to the lockout logic of the lockout event and the control protection program of the target DC transmission system. In the process of constructing the lockout logic tree corresponding to the lockout event according to the lockout logic of the lockout event and the control protection program of the target DC transmission system, the computer device follows the following rules: 1) All logic branches need to be traced back. Specifically, the computer device will use the trip matrix exit as the source, analyze the signal source step by step, and number the signal names and host boards with logical associations to construct the lockout logic tree through the mind map tool. 2) The signal traceback end point must be a non-logic processing position. Specifically, the non-logic processing position includes analog input (such as voltage, current, etc.), digital input (such as switches, knife switches and other primary equipment positions, air cooling status, power supply circuit breaker status, meter status and other signals), device hardware status (such as control and protection host, station communication device and other internal detection signals), control and protection system setting values ​​(such as fixed values, parameters or DC operation modes, etc.). 3) When the end point of signal tracing is the peer signal, obtain the inter-station communication host channel type (such as DCC, PCP, DLP, PPR and other hosts), and summarize all peer signals and channel types. When the signal is traced back to the software encapsulation module, determine the role of each input pin, and continue to trace back the input signal that plays a practical role in the software encapsulation module. When the signal tracing back involves multiple control and protection hosts, determine the communication loop between the hosts, and continue to trace back from the host at the opposite end of the communication loop to the end point. When the signal is traced back to the relevant signal of the DC operation status (such as converter / pole locking, converter / pole unlocking, Kunliulong three-station operation, etc.), it is marked as "DC operation status" and no longer traced.

[0061] In an exemplary embodiment, Figure 2 As shown, the target device is subjected to a blocking analysis to determine the blocking factor of the target device causing the target DC power transmission system to be blocked, including the following steps:

[0062] Step 201: Perform a first blocking analysis on each of the target devices to determine a first blocking factor.

[0063] In some exemplary embodiments, a first lock-in analysis may be performed on each of the target devices based on a pre-trained first lock-in analysis model to determine a first lock-in factor.

[0064] In other exemplary embodiments, for each device in the target device, multiple fault information of the device can be obtained, and it can be determined whether the fault indicated by each fault information will cause the target DC transmission system to be locked; and the fault information corresponding to the fault that causes the target DC transmission system to be locked is determined as the first locking factor.

[0065] Step 202: Combine any two devices in the target device, and perform a second blocking analysis on the combined devices to determine a second blocking factor.

[0066] In some exemplary embodiments, any two devices among the target devices may be combined and then a second lockout analysis may be performed on the combined devices based on a pre-trained second lockout analysis model to determine a second lockout factor.

[0067] In other exemplary embodiments, the fault information of any two devices in the target device may be combined to obtain multiple combined fault information, and it may be determined whether the combined faults indicated by each combined fault information will cause the target DC transmission system to be locked out; and the combined fault information corresponding to the combined fault that causes the target DC transmission system to be locked out is determined as the second locking factor.

[0068] Step 203: Determine the first blocking factor and the second blocking factor as the blocking factor.

[0069] In some exemplary embodiments, after performing a first blocking analysis on each device in the target device to determine a first blocking factor, combining any two devices in the target device, and performing a second blocking analysis on the combined devices to determine a second blocking factor, the first blocking factor and the second blocking factor can be determined as the blocking factor.

[0070] In an exemplary embodiment, Figure 3 As shown, performing a first blocking analysis on each of the target devices to determine a first blocking factor includes the following steps:

[0071] Step 301: for each device in the target device, obtain multiple fault information of the device, and determine whether the fault indicated by each fault information will cause the target DC power transmission system to be locked;

[0072] Step 302: Determine the fault information corresponding to the fault causing the target DC power transmission system to be locked as the first locking factor.

[0073] In some exemplary embodiments, for each device in the target device, multiple fault information of the device is first obtained, and it is determined whether the fault indicated by each fault information will cause the target DC transmission system to be locked out; if the fault indicated by a certain fault information will cause the target DC transmission system to be locked out, the fault of the device is determined as the first locking factor.

[0074] In an optional embodiment of the present application, if a device failure in the target device causes the two redundant control systems of the target DC power transmission system to be directly unavailable and locked, the failure of the device is also determined as the first locking factor. If a single component of a single control protection or communication device, board or tripping output circuit in the target device has a failure that the control protection system self-check function cannot or cannot identify in time, and the control system is not switched after the failure, the protection device output is not locked, and the control protection malfunctions and locks, it can also be determined as the first locking factor. If the same type of hidden dangers can cause the control protection to malfunction and the redundant control system to be unavailable and locked, it can also be determined as the first locking factor.

[0075] In an exemplary embodiment, Figure 4 As shown, any two devices in the target device are combined, and a second blocking analysis is performed on the combined device to determine a second blocking factor, including the following steps:

[0076] Step 401: Combine the fault information of any two devices in the target device to obtain a plurality of combined fault information, and determine whether the combined faults indicated by each of the combined fault information will cause the target DC power transmission system to be locked;

[0077] Step 402: Determine the combined fault information corresponding to the combined fault causing the target DC power transmission system to be locked as the second locking factor.

[0078] In some exemplary embodiments, the fault information of any two devices among the target devices is combined to obtain a plurality of combined fault information, and it is determined whether the combined faults indicated by each of the combined fault information will cause the target DC transmission system to be locked out; if the combined faults indicated by a certain combined fault information will cause the target DC transmission system to be locked out, the combined fault is determined as the second locking factor.

[0079] In some optional embodiments of the present application, if a combined fault causes the control system to lose redundancy, the combined fault is determined as the second blocking factor. If a combined fault causes the protection logic to change from "three out of two" to "two out of one" or "two out of two" to "two out of one", the combined fault is determined as the second blocking factor. For a DC protection system that adopts the "three out of two" protection logic, if a combined fault causes a set of protection to be actuated, or for a DC protection system that adopts the "complete duplex" protection logic, if a combined fault causes an operation unit of a set of protection to be actuated, the combined fault is determined as the second blocking factor. In addition to the above situation, if one non-first blocking factor is satisfied, and another non-first blocking factor is satisfied, it will cause DC blocking, and it can also be determined as the second blocking factor.

[0080] In an exemplary embodiment, Figure 5 As shown, the target device is controlled based on the blocking factor, including the following steps:

[0081] Step 501: construct a summary list of blocking factors according to the blocking factors;

[0082] Step 502: Control the target device according to the blocking factor summary list.

[0083] In some exemplary embodiments, a summary list of blocking factors may be constructed based on the blocking factors for reference by technical personnel, or a management and control strategy may be formulated based on the summary list of blocking factors, and the target device may be managed and controlled based on the management and control strategy.

[0084] For example, the management and control strategies formulated based on the summary of the locking factors can be: For the converter valve, regularly obtain its working data for detection, and regularly maintain it to ensure the normal operation of the valve assembly, and use high-quality equalizing damping circuit components. For the converter transformer, strengthen insulation monitoring, regularly check the cooling system to ensure that its heat dissipation effect is good. For DC and AC filters, regularly detect the status of capacitors and inductors, and output status information for technical personnel to refer to. For lightning arresters, regularly test their performance, and output warning information for severely aged lightning arresters. For control systems, regularly check and upgrade software and hardware to optimize control strategies.

[0085] In an exemplary embodiment, Figure 6 As shown, another method for analyzing and controlling blocking factors of a DC transmission system is provided, and the method comprises the following steps:

[0086] Step 601: Obtain a blocking event that causes a target DC power transmission system to be blocked, and construct a blocking logic tree corresponding to the blocking event according to the blocking event and a control protection program of the target DC power transmission system, wherein the blocking logic tree is used to represent a triggering condition of the blocking event.

[0087] Step 602: determining a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system;

[0088] Step 603: for each device in the target devices, obtain multiple fault information of the device, and determine whether the fault indicated by each fault information will cause the target DC power transmission system to be locked; determine the fault information corresponding to the fault that causes the target DC power transmission system to be locked as the first locking factor;

[0089] Step 604: Combine the fault information of any two devices in the target device to obtain a plurality of combined fault information, and determine whether the combined faults indicated by each of the combined fault information will cause the target DC transmission system to be locked; determine the combined fault information corresponding to the combined fault that causes the target DC transmission system to be locked as the second locking factor;

[0090] Step 605: determine the first blocking factor and the second blocking factor as the blocking factor to determine the blocking factor of the target device that causes the target DC power transmission system to be locked, and construct a blocking factor summary list based on the blocking factor; and control the target device based on the blocking factor summary list.

[0091] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0092] Based on the same inventive concept, the embodiment of the present application also provides a DC transmission system blocking factor analysis and control device for implementing the DC transmission system blocking factor analysis and control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more DC transmission system blocking factor analysis and control device embodiments provided below can refer to the limitations of the DC transmission system blocking factor analysis and control method above, and will not be repeated here.

[0093] In an exemplary embodiment, Figure 7 As shown, a device 700 for analyzing and controlling blocking factors of a DC transmission system is provided, comprising: an acquisition module 701, a determination module 702 and an execution module 703, wherein:

[0094] The acquisition module 701 is used to acquire a blocking event that causes the target DC power transmission system to be blocked, and to construct a corresponding blocking logic tree according to the blocking event, wherein the blocking logic tree is used to represent a triggering condition of the blocking event;

[0095] A determination module 702, configured to determine a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system;

[0096] The execution module 703 is used to perform a blocking analysis on the target device to determine the blocking factor of the target device causing the target DC power transmission system to be blocked, and to control the target device based on the blocking factor.

[0097] In one embodiment, the acquisition module 701 is specifically configured to construct a blocking logic tree corresponding to the blocking event according to the blocking event and the control protection program of the target DC power transmission system.

[0098] In one embodiment, the execution module 703 is specifically used to perform a first blocking analysis on each device in the target device to determine a first blocking factor; combine any two devices in the target device and perform a second blocking analysis on the combined devices to determine a second blocking factor; and determine the first blocking factor and the second blocking factor as the blocking factor.

[0099] In one embodiment, the execution module 703 is specifically configured to obtain, for each device in the target device, multiple fault information of the device, and determine whether the fault indicated by each fault information will cause the target DC transmission system to be locked; and determine the fault information corresponding to the fault that causes the target DC transmission system to be locked as the first locking factor.

[0100] In one embodiment, the execution module 703 is specifically configured to combine the fault information of any two devices in the target device to obtain a plurality of combined fault information, and determine whether the combined faults indicated by each of the combined fault information will cause the target DC transmission system to be locked; and determine the combined fault information corresponding to the combined fault that causes the target DC transmission system to be locked as the second locking factor.

[0101] In one embodiment, the execution module 703 is specifically configured to construct a blocking factor summary list according to the blocking factors; and control the target device according to the blocking factor summary list.

[0102] Each module in the above-mentioned DC transmission system blocking factor analysis and control device can be implemented in whole or in part by software, hardware and their combination. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0103] In an exemplary embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. Figure 8 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for analyzing and controlling locking factors of a DC transmission system is implemented.

[0104] In an exemplary embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Fig. 9 As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, near field communication (Near Field Communication, NFC) or other technologies. When the computer program is executed by the processor, a method for analyzing and controlling the locking factors of a DC transmission system is implemented.

[0105] Those skilled in the art will understand that Figure 8 and Fig. 9 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0106] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0107] Acquire a blocking event that causes the target DC power transmission system to be blocked, and construct a corresponding blocking logic tree according to the blocking event, wherein the blocking logic tree is used to characterize a triggering condition of the blocking event;

[0108] Determining a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system;

[0109] A locking analysis is performed on the target device to determine the locking factor of the target device that causes the target DC power transmission system to have a locking problem, and the target device is controlled based on the locking factor.

[0110] In one embodiment, when the processor executes the computer program, the following steps are further implemented: constructing a blocking logic tree corresponding to the blocking event according to the blocking event and the control protection program of the target DC power transmission system.

[0111] In one embodiment, when the processor executes the computer program, the following steps are also implemented: performing a first blocking analysis on each device in the target device to determine a first blocking factor; combining any two devices in the target device and performing a second blocking analysis on the combined device to determine a second blocking factor; and determining the first blocking factor and the second blocking factor as the blocking factor.

[0112] In one embodiment, when the processor executes the computer program, the following steps are further implemented: for each device in the target device, multiple fault information of the device is obtained, and it is determined whether the fault indicated by each fault information will cause the target DC transmission system to be locked; and the fault information corresponding to the fault that causes the target DC transmission system to be locked is determined as the first locking factor.

[0113] In one embodiment, when the processor executes the computer program, the following steps are further implemented: combining fault information of any two devices in the target device to obtain multiple combined fault information, and determining whether the combined faults indicated by each combined fault information will cause the target DC transmission system to be locked; and determining the combined fault information corresponding to the combined fault that causes the target DC transmission system to be locked as the second locking factor.

[0114] In one embodiment, when the processor executes the computer program, the following steps are also implemented: constructing a summary list of blocking factors according to the blocking factors; and managing the target device according to the summary list of blocking factors.

[0115] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0116] Acquire a blocking event that causes the target DC power transmission system to be blocked, and construct a corresponding blocking logic tree according to the blocking event, wherein the blocking logic tree is used to characterize a triggering condition of the blocking event;

[0117] Determining a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system;

[0118] A locking analysis is performed on the target device to determine the locking factor of the target device that causes the target DC power transmission system to have a locking problem, and the target device is controlled based on the locking factor.

[0119] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: a blocking logic tree corresponding to the blocking event is constructed according to the blocking event and the control protection program of the target DC power transmission system.

[0120] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: performing a first blocking analysis on each device in the target device to determine a first blocking factor; combining any two devices in the target device and performing a second blocking analysis on the combined devices to determine a second blocking factor; and determining the first blocking factor and the second blocking factor as the blocking factor.

[0121] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: for each device in the target device, multiple fault information of the device is obtained, and it is determined whether the fault indicated by each fault information will cause the target DC transmission system to be locked; and the fault information corresponding to the fault that causes the target DC transmission system to be locked is determined as the first locking factor.

[0122] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: combining the fault information of any two devices in the target device to obtain multiple combined fault information, and determining whether the combined faults indicated by each combined fault information will cause the target DC transmission system to be locked; and determining the combined fault information corresponding to the combined fault that causes the target DC transmission system to be locked as the second locking factor.

[0123] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: constructing a blocking factor summary list according to the blocking factor; and managing the target device according to the blocking factor summary list.

[0124] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0125] Acquire a blocking event that causes the target DC power transmission system to be blocked, and construct a corresponding blocking logic tree according to the blocking event, wherein the blocking logic tree is used to characterize a triggering condition of the blocking event;

[0126] Determining a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system;

[0127] A locking analysis is performed on the target device to determine the locking factor of the target device that causes the target DC power transmission system to have a locking problem, and the target device is controlled based on the locking factor.

[0128] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: a blocking logic tree corresponding to the blocking event is constructed according to the blocking event and the control protection program of the target DC power transmission system.

[0129] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: performing a first blocking analysis on each device in the target device to determine a first blocking factor; combining any two devices in the target device and performing a second blocking analysis on the combined devices to determine a second blocking factor; and determining the first blocking factor and the second blocking factor as the blocking factor.

[0130] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: for each device in the target device, multiple fault information of the device is obtained, and it is determined whether the fault indicated by each fault information will cause the target DC transmission system to be locked; and the fault information corresponding to the fault that causes the target DC transmission system to be locked is determined as the first locking factor.

[0131] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: combining the fault information of any two devices in the target device to obtain multiple combined fault information, and determining whether the combined faults indicated by each combined fault information will cause the target DC transmission system to be locked; and determining the combined fault information corresponding to the combined fault that causes the target DC transmission system to be locked as the second locking factor.

[0132] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: constructing a blocking factor summary list according to the blocking factor; and managing the target device according to the blocking factor summary list.

[0133] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0134] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0135] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for analyzing and controlling blocking factors of a DC transmission system, characterized in that: The method comprises: Acquire a blocking event that causes the target DC power transmission system to be blocked, and construct a corresponding blocking logic tree according to the blocking event, wherein the blocking logic tree is used to characterize a triggering condition of the blocking event; determining a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system; A blocking analysis is performed on the target device to determine a blocking factor of the target device causing the target DC power transmission system to be blocked, and the target device is controlled based on the blocking factor.

2. The method according to claim 1, characterized in that The step of constructing a corresponding locking logic tree according to the locking event includes: A locking logic tree corresponding to the locking event is constructed according to the locking event and the control protection program of the target DC power transmission system.

3. The method according to claim 1, characterized in that The performing a blocking analysis on the target device to determine a blocking factor of the target device causing the target DC power transmission system to be blocked includes: performing a first blocking analysis on each of the target devices to determine a first blocking factor; Combining any two of the target devices, and performing a second blocking analysis on the combined devices to determine a second blocking factor; The first occlusion factor and the second occlusion factor are determined as the occlusion factors.

4. The method according to claim 3, characterized in that The performing a first blocking analysis on each of the target devices to determine a first blocking factor includes: For each of the target devices, obtaining multiple pieces of fault information of the device, and determining whether the fault indicated by each piece of fault information will cause the target direct current power transmission system to be locked; Fault information corresponding to the fault causing the target DC power transmission system to be locked out is determined as the first locking factor.

5. The method according to claim 3, characterized in that: The combining any two of the target devices and performing a second blocking analysis on the combined devices to determine a second blocking factor includes: Combining the fault information of any two devices in the target devices to obtain a plurality of combined fault information, and determining whether the combined faults indicated by each of the combined fault information will cause the target DC power transmission system to be locked; The combined fault information corresponding to the combined fault causing the target DC power transmission system to be locked out is determined as the second locking factor.

6. The method according to claim 1, characterized in that The controlling the target device based on the blocking factor includes: constructing a summary list of blocking factors based on the blocking factors; The target device is controlled according to the blocking factor summary list.

7. A device for analyzing and controlling blocking factors of a DC transmission system, characterized in that: The device comprises: An acquisition module, used for acquiring a blocking event that causes the target DC power transmission system to be blocked, and constructing a corresponding blocking logic tree according to the blocking event, wherein the blocking logic tree is used for representing a triggering condition of the blocking event; a determination module, configured to determine a target device from a plurality of devices of the target DC power transmission system according to the blocking logic tree and circuit information of the target DC power transmission system; The execution module is used to perform a blocking analysis on the target device to determine the blocking factor of the target device causing the target DC power transmission system to be blocked, and to control the target device based on the blocking factor.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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