Processing method and system for operation quitting of busbar differential protection of power grid equipment

Abstract

The invention relates to the technical field of power grid operation and maintenance, and provides a power grid equipment bus differential protection exit processing method, which comprises the following steps that a protection information master station collects protection device information, judges whether two sets of bus differential protection exit at the same time or not, and if so, generates prompt information and sends the prompt information to an intelligent operation and maintenance server; the intelligent operation and maintenance server identifies the protection line of which the fixed value needs to be modified and generates a modification list according to the prompt information and a primary equipment topological graph sent by the OCS; and the DICP platform generates an operation instruction according to the modification list and sends the operation instruction to the protection information master station, and the protection information master station finds a corresponding protection device according to the operation instruction and modifies a fixed value. The invention further provides a processing system for the busbar differential protection quit of the power grid equipment so as to realize the processing method. According to the embodiment of the invention, the operation and maintenance efficiency can be improved, and overlong protection mismatching time is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of intelligent substations, and in particular to a method and system for processing the exit of busbar differential protection of power grid equipment. Background Art

[0002] In the current power equipment, in order to ensure the reliability of the power system, for buses of 220kV and above, two sets of power grid equipment bus differential protection need to be configured, so that when one set of power grid equipment bus differential protection is out of operation, there is still one set of power grid equipment bus differential protection running normally, and the bus is still in a protected state, so there is no need to change the system operation mode. However, if two sets of 220kV power grid equipment bus differential protection are out of operation at the same time, in order to ensure that the bus can quickly isolate the fault when a fault occurs, it is necessary to modify the setting time of the line protection distance II section of all the opposite stations of the bus, so as to ensure the stability of the system.

[0003] The existing method for modifying the distance II period of the line protection of the opposite station is that the dispatcher makes a decision and then orders the operation and maintenance personnel, who then modify the setting area at the substation. In other words, the existing method requires manual search for the busbars and the lines connected to them where the dual bus differential protections are out of operation, and then change the setting area. This processing method is inefficient, resulting in a long protection mismatch time when both sets of bus differential protections of the power grid equipment are out of operation, which is not conducive to the stable operation of the system. Summary of the invention

[0004] The purpose of the embodiments of the present disclosure is to provide a method for solving the problem in the related art that when the mother differential protection systems of power grid equipment exit simultaneously and need to modify the set values, the efficiency is low, resulting in a long protection mismatch time.

[0005] In order to achieve the above objectives, the embodiments of the present disclosure adopt the following technical solutions:

[0006] According to one aspect of the present invention, an embodiment of the present disclosure provides a method for processing the exit of bus differential protection of power grid equipment, which is applied to a processing system, wherein the processing system includes: a security master station, a security substation, an OCS system, an intelligent operation and maintenance server, and a DICP platform. The processing method includes the following steps:

[0007] The protection device master station collects the protection device information sent by each of the protection substations, determines whether the dual-set bus differential protection of each of the protection substations is out of operation at the same time, and if so, generates corresponding prompt information and sends it to the intelligent operation and maintenance server, wherein the protection device information includes the operating status of the protection device;

[0008] After receiving the prompt information, the intelligent operation and maintenance server identifies the protection devices that need to modify the setting value when the two sets of bus differential protection are simultaneously exited according to the topology information of the substation equipment sent by the OCS system, and generates a corresponding modification list and sends it to the DICP platform;

[0009] The DICP platform generates a corresponding programmed operation ticket according to the modification list, and sends the programmed operation ticket to the security main station;

[0010] The protection signal master station controls the corresponding protection device to modify the set value according to the programmed operation ticket.

[0011] In some embodiments, determining whether the dual sets of bus differential protection of each of the security substations are simultaneously out of operation includes:

[0012] Determine whether the soft pressure plate of the bus differential protection function has been exited; or determine whether all the soft pressure plates at the bus differential protection outlets have been exited; or determine whether the bus differential protection device has sent a locking signal.

[0013] In some embodiments, the intelligent operation and maintenance server identifies the protection device that needs to modify the setting value when the two sets of bus differential protection are simultaneously exited according to the topology information of the substation equipment sent by the OCS system, including:

[0014] The intelligent operation and maintenance server determines that the two sets of bus differential protection of the first substation are simultaneously exited according to the prompt information;

[0015] The intelligent operation and maintenance server identifies, based on the primary system topology diagram sent by the OCS system, a line of a second substation associated with the first substation, and determines that a fixed value modification is required for the line of the second substation;

[0016] The intelligent operation and maintenance server generates a corresponding modification list according to the lines of the second substation and the protection device list obtained from the security master station.

[0017] In some embodiments, when the protection signal master station identifies that two sets of mother differential protection exit at the same time based on the protection device information, it generates the corresponding prompt information and sends the prompt information to the intelligent operation and maintenance server. The prompt information includes a protection device list.

[0018] In some embodiments, the DICP platform generates a corresponding programmed operation ticket according to the modification list, wherein the programmed operation ticket includes the substation name, the protection device name and the operation task.

[0019] In some embodiments, the security master station controls the modification of the set value of the protection device of the strain power station according to the programmed operation ticket, including:

[0020] The security master station obtains the programmed operation ticket and establishes an association relationship with the protection device corresponding to the security master station according to the information in the programmed operation ticket;

[0021] The security master station generates a substation operation instruction according to the association relationship, and sends the substation operation instruction to the corresponding substation protection device to modify the setting value of the protection device.

[0022] In some embodiments, modifying the setting value of the protection device includes switching a protection zone of the protection device.

[0023] In some embodiments, after the setting value of the protection device of the substation is modified, the method further includes:

[0024] The security master station generates a corresponding success message and sends the success message to the DICP platform;

[0025] The DICP platform confirms the current fixed value modification according to the success message.

[0026] In some embodiments, after the DICP platform confirms the current constant value modification according to the success message, it sends the next operation instruction to the security main station until all operation instructions are sent.

[0027] According to another aspect of the present invention, a processing system for exiting bus differential protection of power grid equipment is provided, comprising: a trustworthy master station, a trustworthy substation, an intelligent operation and maintenance server, and a DICP platform, which can implement the above-mentioned processing method.

[0028] The disclosed embodiment of the present invention of the Baoxin substation sets up an intelligent operation and maintenance server and connects the Baoxin main station with the interface of the DICP platform and the OCS system. By collecting the information sent by the protection device, it can automatically identify the substation where the two sets of mother differential protection are simultaneously exited, and send the list of constants that need to be modified to the DICP platform. The DICP platform automatically generates operation instructions for changing the constants, and the Baoxin main station automatically completes the changing of the constants. This can greatly improve the operation and maintenance efficiency, realize fast, efficient and accurate modification of the constants, and avoid the situation where the protection mismatch time of the two sets of mother differential protection of the power grid equipment is too long when both are exited, which is beneficial to ensuring the safe and stable operation of the power system and can also save manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 It is a schematic diagram of the overall structure of a processing system for exiting operation of a bus differential protection of power grid equipment according to an embodiment of the present disclosure;

[0031] Figure 2 A schematic diagram of the specific structure of a processing system for exiting operation of a bus differential protection of power grid equipment according to an embodiment of the present disclosure;

[0032] Figure 3 A schematic diagram of the steps of a method for processing the exit of operation of a main differential protection of power grid equipment according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] Various aspects and features of the present disclosure are described herein with reference to the drawings.

[0034] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the present disclosure will occur to those skilled in the art.

[0035] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0036] These and other characteristics of the present disclosure will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the attached drawings.

[0037] It should also be understood that, although the present disclosure has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present disclosure that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0038] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0039] Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments claimed are merely examples of the present disclosure, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of ways with substantially any suitable detailed structure.

[0040] This specification may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present disclosure.

[0041] The disclosed embodiment of the present invention provides a processing method for the exit of the bus differential protection of a power grid device, which is applied to a processing system. The processing system is established in a power grid device of 220V and above, and two sets of bus differential protections are arranged in the power grid device. The processing method provided by the disclosed embodiment of the present invention is suitable for judging the situation where both sets of bus differential protections of the power grid equipment are exited.

[0042] To facilitate the description of the steps of the processing method, the overall structure of the processing system is first described below. Figure 1 , 2 As shown, the processing system includes: a Baoxin main station 1, multiple Baoxin substations 2, an OCS system 4, an intelligent operation and maintenance server 3, and a DICP platform 5. In a specific implementation, the Baoxin main station 1 and the DICP platform 5, the Baoxin main station 1 and the intelligent operation and maintenance server 3, the intelligent operation and maintenance server 3 and the DICP platform 5, and the intelligent operation and maintenance server 3 and the OCS system 4 are respectively connected through the firewall 60 interface to realize network communication.

[0043] See also Figure 3 , the processing method provided by the embodiment of the present disclosure includes the following steps:

[0044] Step S1: the protection master station collects the protection device information sent by each of the protection substations, determines whether the dual bus differential protections of each of the protection substations are simultaneously out of operation, and if so, generates corresponding prompt information and sends it to the intelligent operation and maintenance server, wherein the protection device information includes the operating status of the protection device;

[0045] The security main station 1 collects the protection device information sent by each security substation 2, determines whether the mother differential protection of the power grid equipment has been exited, and if so, generates a prompt message containing the protection device information of the security substation 2, and sends the association list to the intelligent operation and maintenance server 3.

[0046] The Baoxin main station 1 collects the protection device information sent by each Baoxin substation 2. Specifically, the full name of the Baoxin main station 1 is the relay protection fault information management system master station, which is installed in the power system dispatching control center and region, and is responsible for monitoring and managing the operating status of the entire power system; the full name of the Baoxin substation 2 is the relay protection information management substation, which can be optionally built in units of substations, and can collect and monitor the relay protection device information of the entire station, including telemetry, telesignaling, set values, action information, and fault information. The Baoxin main station 1 communicates with the corresponding Baoxin substation 2, and can collect and process the protection device information uploaded by the Baoxin substation 2, thereby monitoring the status of the protection device. In a specific embodiment, the Baoxin main station 1 and each Baoxin substation 2 communicate through a dispatching data network.

[0047] In this step, judging whether the dual sets of bus differential protection of the power grid equipment have exited operation includes: whether the bus differential protection function soft pressure plate has exited; or judging whether all the bus differential protection outlet soft pressure plates have exited; or whether the bus differential protection device sends a locking signal.

[0048] It is worth noting that the above three judgment criteria adopt OR gate logic, that is, as long as the main station 1 determines that at least one of the three situations, namely, the soft pressure plate of the bus differential protection function has been exited, all the soft pressure plates of the bus differential protection have been exited, and the bus differential protection device has sent a locking signal, based on the protection device information sent by the substation 2, it can be determined that both sets of bus differential protection have been exited.

[0049] Generate corresponding prompt information and send it to the intelligent operation and maintenance server, wherein the protection device information includes the operating status of the protection device. Specifically, generating the corresponding prompt information includes generating an association list containing the protection device information of the protection substation 2, and sending the association list to the intelligent operation and maintenance server 3. The association list means a list of identities of the protection devices directly associated with the busbar that exits the bus differential protection.

[0050] In some specific embodiments, the security main station 1 can generate alarm information while generating an association list, and send the alarm information together with the association list when sending it to the intelligent operation and maintenance server 3, so that the intelligent operation and maintenance server 3 can perform the next step after receiving the prompt of the alarm information.

[0051] Step S2: After receiving the prompt information, the intelligent operation and maintenance server identifies the protection devices that need to modify the set values ​​when the two sets of bus differential protection are simultaneously exited according to the topology information of the substation equipment sent by the OCS system, and generates a corresponding modification list and sends it to the DICP platform.

[0052] Specifically, the full name of the OCS system 4 is "power grid operation control system", which is a system in the power grid intelligent equipment responsible for real-time command and monitoring of power grid currents and graphics. It can generate and record real-time data and store historical data, especially the topological information of the corresponding relationship between primary equipment, secondary equipment, busbars, and protection devices, and generate a primary equipment topology map. In this step, the OCS system 4 regularly sends the topological information of the substation equipment to the intelligent operation and maintenance server 3, that is, the OCS system 4 regularly sends the latest primary equipment topology map to the intelligent operation and maintenance server 3, so that the intelligent operation and maintenance server 3 can use the primary equipment topology map for operation management statistics analysis.

[0053] The intelligent operation and maintenance server 3 finds the protection device that needs to be modified based on the list of associated devices and the topological information of the substation equipment, generates a modification list, and sends the modification list to the DICP platform 5, that is, identifies the opposite station line protection associated with the protection device recorded in the list of associated devices, lists these opposite station line protections in the modification list, and then calculates the modification rules of the setting time of the distance II section of these opposite station line protections, organizes them into a modification list and sends them to the DICP platform 5.

[0054] Furthermore, the above modification rule can be modified by modifying the fixed value area. The fixed value area refers to a set of pre-stored parameter values ​​set in the protection device. The embodiment disclosed in the present invention refers to the setting time of the protection action. For example, area 01 is preset as a set of setting times used in normal operation, and area 02 is preset as a set of setting times used when the bus differential protection is exited. The modification rule can be "switch the setting time from area 01 to area 02".

[0055] Switching the setting zone refers to the process of switching the setting of the relay protection device according to the changes in the operating mode during the operation of the power system.

[0056] Step S3: the DICP platform generates a corresponding programmed operation ticket according to the modification list, and sends the programmed operation ticket to the security main station; the security main station controls the corresponding protection device to modify the set value according to the programmed operation ticket.

[0057] Specifically, the DICP platform 5 is called "Intelligent Command Platform for Power Grid Dispatching", which can provide container virtualization, service orchestration and container clustering functions, and provide data services and other services, which will not be repeated here. In the embodiment disclosed in the present invention, the DICP platform 5 can generate operation instructions according to the modification list and modification rules sent by the intelligent operation and maintenance server 3 and can realize human-computer interaction. Preferably, after the DICP platform generates the operation instruction, it displays the operation instruction through a display device, and the dispatcher confirms it through the human-computer interaction device and then sends the operation instruction to the corresponding security master station 1.

[0058] The programmed operation ticket includes: the name of the protection device that needs to be modified in the set value area and the corresponding Baoxin substation substation name, as well as the content of the task of modifying the set value area, so that the Baoxin main station 1 finds the corresponding protection device and communicates according to the name of the substation Baoxin substation and the name of the protection device, and sends the task of modifying the set value area to the protection device. The protection device modifies the set value area according to the content of the task of modifying the set value area.

[0059] In a specific implementation, the Baoxin master station obtains a programmed operation ticket, and establishes an association relationship with the protection device corresponding to the Baoxin master station based on the information in the programmed operation ticket; the Baoxin master station generates a substation operation instruction based on the association relationship, and sends the substation operation instruction to the corresponding substation protection device to modify the set value of the protection device.

[0060] In a specific implementation, after the protection device completes the modification of the set value zone, the protection signal master station 1 collects the status of the protection device, determines whether the protection device has indeed completed the modification of the set value zone, and sends a success message to the DICP platform 5. After the DICP platform 5 confirms the success message, it sends the next operation instruction.

[0061] The following combination Figure 2 The specific implementation and beneficial effects of the embodiments of the present disclosure are described by way of example:

[0062] See also Figure 2 , the Baoxin main station 1 collects the protection device information sent by the Baoxin substation A, Baoxin substation B and Baoxin substation C, and monitors whether the protection devices in each Baoxin substation have the mother differential protection function soft pressure plate exited, the mother differential protection all export soft pressure plates exited, or the mother differential protection device sent a locking signal. Assuming that the mother differential protection function soft pressure plate of the protection device of Baoxin substation A has exited, it is judged that the mother differential protection one 201 and the mother differential protection two 202 of Baoxin substation A are exited at the same time. Afterwards, the Baoxin main station 1 generates a prompt message and sends it to the intelligent operation and maintenance server 3. After the intelligent operation and maintenance server 3 receives the prompt message, it identifies the protection line that needs to modify the set value according to the topological relationship information sent by the OCS system 4, and generates a modification list and modification rules. Assuming that in this step, the intelligent operation and maintenance server 3 identifies that the protection lines related to the protection device of the Baoxin substation A are: Line 1 of Baoxin substation B and Line 2 of Baoxin substation C, the generated modification list should include Line 1 main protection 203, Line 1 main protection 204, Line 2 main protection 205, Line 2 main protection 206, and the generated modification list includes modifying the setting time of the above line protection distance II. Afterwards, the intelligent operation and maintenance server 3 sends the modification list to the DICP platform 5.

[0063] DICP platform 5 generates a programmed operation ticket according to the modification list, and each programmed operation ticket contains the corresponding substation name, protection device name and the content of the task of modifying the setting area. For example, the content of the programmed operation ticket is "Baoxin substation B line protection one main one protection 203 setting area is switched from area 01 to area 02", and Baoxin master station 1 finds Baoxin substation B according to the programmed operation ticket, communicates with the line protection one main one protection 203 in Baoxin substation B, generates an operation instruction to operate its setting area to switch from area 01 to area 02. Afterwards, Baoxin master station 1 determines that the line protection one main one protection 203 in Baoxin substation B has modified the setting, and sends a success message to DICP platform 5. After receiving the success message, DICP platform 5 sends the next programmed operation ticket, that is, "Baoxin substation B line protection one main two protection 204 setting area is switched from area 01 to area 02", ..., until all the above protection devices that need to modify the setting are modified.

[0064] The disclosed embodiment of the present invention sets up an intelligent operation and maintenance server 3 and connects the interfaces of the security main station 1, the DICP platform 5 and the OCS system 4. By collecting the information sent by the protection device, it can automatically identify the substation where the two sets of mother differential protection are simultaneously exited, and send the list of constant values ​​that need to be modified to the DICP platform 5. The DICP platform 5 automatically generates an operation instruction for changing the constant values, and the security main station 1 automatically completes the changing of the constant values. This can greatly improve the operation and maintenance efficiency, realize fast, efficient and accurate modification of the constant values, avoid the situation where the protection mismatch time of the two sets of mother differential protection of the power grid equipment is too long when both are exited, which is beneficial to ensuring the safe and stable operation of the power system and can also save manpower.

[0065] In a specific implementation, the trust-protecting substation includes an intelligent remote motor, an intelligent recorder, a control substation, and the like.

[0066] In a specific implementation, the DICP platform 5 is deployed in a security zone II with a higher network security level, and the Baoxin main station 1, Baoxin substation, OCS system 4 and intelligent operation and maintenance server 3 are deployed in a security zone I with a lower network security level.

[0067] In a specific embodiment, two sets of bus differential protection for power equipment operate on busbars of 220V and above.

[0068] The storage medium may be included in the electronic device, or may exist independently without being installed in the electronic device.

[0069] The storage medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device: obtains at least two Internet Protocol addresses; sends a node evaluation request including at least two Internet Protocol addresses to a node evaluation device, wherein the node evaluation device selects an Internet Protocol address from the at least two Internet Protocol addresses and returns it; receives the Internet Protocol address returned by the node evaluation device; wherein the obtained Internet Protocol address indicates an edge node in a content distribution network.

[0070] Alternatively, the storage medium carries one or more programs, and when the one or more programs are executed by the electronic device, the electronic device: receives a node evaluation request including at least two Internet Protocol addresses; selects an Internet Protocol address from the at least two Internet Protocol addresses; and returns the selected Internet Protocol address; wherein the received Internet Protocol address indicates an edge node in a content distribution network.

[0071] Computer program code for performing operations of the present disclosure may be written in one or more programming languages, or a combination thereof, including, but not limited to, object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" or similar programming languages. The program code may be executed entirely on the passenger computer, partially on the passenger computer, as a separate software package, partially on the passenger computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the passenger computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0072] It should be noted that the storage medium disclosed above may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable program code is carried. This propagated data signal may take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. The computer readable signal medium may also be any storage medium other than a computer readable storage medium, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0073] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present disclosure. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0074] The units involved in the embodiments described in the present disclosure may be implemented by software or hardware, wherein the name of a unit does not, in some cases, limit the unit itself.

[0075] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0076] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0077] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other to form a technical solution.

[0078] In addition, although each operation is described in a specific order, this should not be understood as requiring these operations to be performed in the specific order shown or in a sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Similarly, although some specific implementation details are included in the above discussion, these should not be interpreted as limiting the scope of the present disclosure. Some features described in the context of a separate embodiment can also be implemented in a single embodiment in combination. On the contrary, the various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination mode.

[0079] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

[0080] Multiple embodiments of the present disclosure are described in detail above, but the present disclosure is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications to the embodiments based on the concepts of the present disclosure, and these variations and modifications should all fall within the scope of protection required by the present disclosure.

Claims

1. A method for processing the exit of bus differential protection of power grid equipment, characterized in that: Applied to a processing system, the processing system includes: a Baoxin main station, a Baoxin substation, an OCS system, an intelligent operation and maintenance server, and a DICP platform. The processing method includes the following steps: The protection device master station collects the protection device information sent by each of the protection substations, determines whether the dual-set bus differential protection of each of the protection substations is out of operation at the same time, and if so, generates corresponding prompt information and sends it to the intelligent operation and maintenance server, wherein the protection device information includes the operating status of the protection device; After receiving the prompt information, the intelligent operation and maintenance server identifies the protection devices that need to modify the setting value when the two sets of bus differential protection are simultaneously exited according to the topology information of the substation equipment sent by the OCS system, and generates a corresponding modification list and sends it to the DICP platform; The DICP platform generates a corresponding programmed operation ticket according to the modification list, and sends the programmed operation ticket to the security main station; The protection signal master station controls the corresponding protection device to modify the set value according to the programmed operation ticket.

2. The processing method according to claim 1, characterized in that: Determining whether the dual sets of bus differential protection of each of the security substations are out of operation at the same time includes: Determine whether the soft pressure plate of the busbar differential protection function is exited; or Determine whether all the outlet soft pressure plates of the bus differential protection have exited; or Determine whether the bus differential protection device sends a locking signal.

3. The processing method according to claim 1, characterized in that: The intelligent operation and maintenance server identifies, according to the topology information of the substation equipment sent by the OCS system, a protection device that needs to modify the set value when the two sets of bus differential protection are simultaneously exited, including: The intelligent operation and maintenance server determines that the two sets of bus differential protection of the first substation are simultaneously exited according to the prompt information; The intelligent operation and maintenance server identifies, based on the primary system topology diagram sent by the OCS system, a line of a second substation associated with the first substation, and determines that a fixed value modification is required for the line of the second substation; The intelligent operation and maintenance server generates a corresponding modification list according to the lines of the second substation and the protection device list obtained from the security master station.

4. The processing method according to claim 3, characterized in that: When the protection signal master station identifies that two sets of mother differential protection exit at the same time based on the protection device information, it generates the corresponding prompt information and sends the prompt information to the intelligent operation and maintenance server. The prompt information includes a protection device list.

5. The processing method according to claim 1, characterized in that: The DICP platform generates a corresponding programmed operation ticket according to the modification list, wherein the programmed operation ticket includes a substation name, a protection device name and an operation task.

6. The processing method according to claim 5, characterized in that: The security master station controls the modification of the set value of the protection device of the strain power station according to the programmed operation ticket, including: The security master station obtains the programmed operation ticket and establishes an association relationship with the protection device corresponding to the security master station according to the information in the programmed operation ticket; The security master station generates a substation operation instruction according to the association relationship, and sends the substation operation instruction to the corresponding substation protection device to modify the setting value of the protection device.

7. The processing method according to claim 6, characterized in that: The modifying of the setting value of the protection device includes switching the protection zone of the protection device.

8. The processing method according to claim 1, characterized in that: After the protection device of the substation is modified, the method further includes: The security master station generates a corresponding success message and sends the success message to the DICP platform; The DICP platform confirms the current fixed value modification according to the success message.

9. The processing method according to claim 8, characterized in that: After the DICP platform confirms the current fixed value modification according to the success message, it sends the next operation instruction to the security main station until all the operation instructions are sent.

10. A processing system for exiting bus differential protection of power grid equipment, characterized in that: include: The Baoxin main station, the Baoxin substation, the intelligent operation and maintenance server, and the DICP platform can implement the processing method described in any one of claims 1 to 9.

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