An intelligent substation relay outlet clamping solution system and method

Abstract

The present invention discloses an intelligent substation relay outlet clamping solution system and method in the technical field of intelligent substations, including: powering on and initializing the device after completing the preparations before operation; monitoring whether each processing board is communicating normally before responding to the control commands of each processing board; when any processing board has a communication interruption, clearing all the control commands of the processing board with the communication interruption before generating an outlet command; when any processing board is communicating normally, taking the control commands issued by the processing board with normal communication; ORing the cleared and taken control commands to generate outlet commands corresponding to each relay outlet; controlling the on / off of the corresponding outlet channels of the output board based on the outlet commands. The present invention reduces the scope of fault influence and eliminates the problem that when only one processing board has an abnormality, the outlet channels of the output board cannot be controlled by another processing board of this device, resulting in the loss of the functions of the entire device.

Description

Technical Field

[0001] The present invention relates to a system and method for solving the clamping of relay outlets in an intelligent substation, belonging to the technical field of intelligent substations. Background Art

[0002] An intelligent substation is a substation that adopts reliable, economical, integrated, low-carbon, and environmentally friendly equipment and designs. With the basic requirements of digitalization of all-station information, networking of communication platforms, standardization of information sharing, integration of system functions, compactness of structural design, intelligence of high-voltage equipment, and visualization of operating status, it can support real-time online analysis and control decision-making of the power grid, thereby improving the operating reliability and economy of the entire power grid. It can automatically complete basic functions such as information acquisition, measurement, control, protection, metering, and detection. At the same time, it has advanced functions such as supporting real-time automatic control of the power grid, intelligent regulation, online analysis and decision-making, and collaborative interaction.

[0003] Please refer to Figure 1 , the management board is connected to the processing board and the output board through the bus backplane. The control device controls the corresponding relay outlet on the output board through GOOSE messages. Any relay on the output board can be simultaneously controlled by multiple GOOSE messages on multiple processing boards; the processing board obtains the GOOSE messages transmitted from the control device, decodes them to obtain control commands, and transmits the control commands to the management board; the management board receives the control commands from the processing board, and after logical judgment based on the control commands, obtains an outlet command (when the outlet command is "1", the corresponding outlet channel is closed; when the outlet command is "0", the corresponding outlet channel is disconnected) and issues it to the output board; the output board has multiple relay outlet channels and controls the on / off of the corresponding outlet channels based on the outlet command.

[0004] When the outlet channel of the output board is closed by the control command of a certain processing board, if a communication interruption occurs when the management board receives the control command of this processing board, if not processed, due to the outlet command given by the management board still remaining at "1", the outlet of the corresponding relay will be clamped in the closed state and cannot be controlled by the normal communication board. Therefore, technical means are needed to solve the problem that the relay outlet is clamped and cannot return to the normal state. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a system and method for solving the clamping of relay outlets in an intelligent substation, which reduces the scope of fault influence and eliminates the problem that when only one processing board has an abnormality, the outlet channel of the output board cannot be controlled by the other processing board of this device, resulting in the loss of the entire device's function.

[0006] To achieve the above object, the present invention is implemented by the following technical solutions:

[0007] In a first aspect, the present invention provides a solution for clamping the relay outlet of an intelligent substation, including:

[0008] Power on and initialize the device after completing the pre-operation preparation;

[0009] Before responding to the control commands of each processing board, monitor whether the communication of each processing board is normal;

[0010] In response to a communication interruption occurring in any processing board, before generating an outlet command, clear all the control commands of the processing board with the communication interruption;

[0011] In response to any processing board having normal communication, retrieve the control commands issued by the processing board with normal communication;

[0012] OR the cleared and retrieved control commands to generate outlet commands corresponding to each relay outlet;

[0013] Based on the outlet commands, control the on / off of the corresponding outlet channels of the output board.

[0014] Furthermore, the pre-operation preparation includes:

[0015] Establish AccessPoint access points and Connected AP connection points corresponding to each processing board in the ICD file;

[0016] Divide the input virtual terminals corresponding to each processing board through the AccessPoint access point in the ICD file;

[0017] Divide the slot numbers and network ports corresponding to each processing board through the ConnectedAP connection point in the ICD file;

[0018] Import the ICD file by the configuration tool to realize the virtual terminal connection between devices and complete the integration of the SCD file;

[0019] Export the CCD file by the configuration tool through the SCD file and download the CCD file into the device to complete the preparation.

[0020] Furthermore, power on and initialize the device after completing the pre-operation preparation, including: in response to the device power-on, clear the control commands corresponding to all input virtual terminals as the initial state.

[0021] Furthermore, the pre-operation preparation includes:

[0022] Establish a unified AccessPoint access point and ConnectedAP connection point for the entire device in the ICD file;

[0023] Include the input virtual terminals corresponding to all processing boards of the entire device in the AccessPoint access point of the ICD file;

[0024] The slot numbers and network ports corresponding to all the processing boards of the entire device are included in the ConnectedAP connection point of the ICD file;

[0025] Import the ICD file by the configuration tool to realize the virtual terminal connection between devices and complete the integration of the SCD file;

[0026] Export the CCD file from the SCD file by the configuration tool and download the CCD to the device to complete the preparation.

[0027] Furthermore, power on and initialize the device that has completed the pre - operation preparation, including:

[0028] In response to the device power - on, parse the GOOSE SUB in the CCD file, generate the corresponding input virtual terminal subscription information into a private information file, and at the same time clear all the control commands corresponding to the input virtual terminals as the initial state;

[0029] Read the private information file, obtain and judge whether there is a receiving relationship for each input variable, and obtain the slot numbers of the processing boards corresponding to each input variable with a receiving relationship.

[0030] Furthermore, obtaining and judging whether there is a receiving relationship for each input variable includes:

[0031] When the input variable has no receiving relationship, maintain the initial state of the control command corresponding to the input variable;

[0032] When the input variable has a receiving relationship, do not maintain the initial state of the control command corresponding to the input variable.

[0033] Furthermore, monitor whether each processing board communicates normally, including: monitoring whether a heartbeat message sent by the processing board is received within a specified time. Among them, if the heartbeat message sent by the processing board is not received within the specified time, it means that a communication interruption has occurred, and if the heartbeat message sent by the processing board is received within the specified time, it means that the communication is normal.

[0034] In a second aspect, the present invention provides an intelligent substation relay outlet clamping solution system, including:

[0035] Power - on initialization module: used to power on and initialize the device that has completed the pre - operation preparation;

[0036] Monitoring module: used to monitor whether each processing board communicates normally before responding to the control commands of each processing board;

[0037] Control command clearing module: used to clear all the control commands of the processing board with a communication interruption before generating an outlet command when a communication interruption occurs in any processing board;

[0038] Control order fetching module: used to fetch the control order issued by the processing board with normal communication in response to normal communication of any processing board;

[0039] Outlet order synthesis module: used to OR the cleared and fetched control orders to generate outlet orders corresponding to each relay outlet;

[0040] Channel control module: used to control the on / off of the corresponding outlet channel of the output board based on the outlet order.

[0041] Thirdly, an intelligent substation relay outlet clamping solution device includes a processor and a storage medium;

[0042] The storage medium is used to store instructions;

[0043] The processor is used to operate according to the instructions to execute the steps of the method according to any one of the above.

[0044] Fourthly, a computer-readable storage medium stores a computer program, and when the program is executed by a processor, the steps of the method according to any one of the above are implemented.

[0045] Compared with the prior art, the beneficial effects achieved by the present invention:

[0046] This method uses the management board to monitor the communication status of the control orders issued by two processing boards in real time. When the management board detects that the heartbeat message of a certain processing board has not been received within a certain period of time, before generating the outlet order, the management board clears all the control orders of the corresponding processing board to zero, and then ORs them with the corresponding control orders of the processing board with normal communication to generate the outlet orders corresponding to the relays. In this way, the problem of relay clamping can be solved. Thereby reducing the scope of fault impact and preventing the situation where when only one processing board has an abnormality, the outlet channel of the output board cannot be controlled by the other processing board of this device, which may lead to the loss of the entire device's function. Description of the Drawings

[0047] Figure 1 is a schematic diagram of the connection relationship between the management board, the processing board and the output board provided in Embodiment 1 of the present invention;

[0048] Figure 2 is a flowchart of an intelligent substation relay outlet clamping solution method provided in Embodiment 1 of the present invention. Detailed Embodiments

[0049] The present invention will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0050] Embodiment 1:

[0051] Please refer toFigure 1-2 , this embodiment discloses a method for solving the clamping problem of the relay outlet in an intelligent substation, namely the binding method, which belongs to an artificially formulated modeling method. It is modeled separately according to the processing board, and the program processing method depends on the modeling method. It can conveniently solve the clamped problem, but it is not flexible enough. In this embodiment, access points are established for two processing boards respectively. The 1# processing board corresponds to the "G1 access point", which only contains the input virtual terminals with subscript [0]. The 2# processing board corresponds to the "G2 access point", which only contains the input virtual terminals with subscript [1]. Connected APs are established respectively. The "G1 connection point" only contains the network interface of the 1# processing board, and the "G2 connection point" only contains the network interface of the 2# processing board. ([ <p type＝"port">5-A In it, 5 represents the slot position of the corresponding processing board on the device, A is the first network interface of the board, B is the second network interface of the board...)

[0052] Two groups of input variables are set in the program, which are represented by subscripts [0] and [1] respectively (such as Goose_Ctr1_IN[0], Goose_Ctr2_IN[0]...; Goose_Ctr1_IN[1], Goose_Ctr2_IN[1]...). Among them, the input variables with subscript [0] in the program correspond to the input virtual terminals with subscript [0] in the model file (B02.CBR.Goose_Ctr1_IN[0], B02.CBR.Goose_Ctr2_IN[0]...); the input variables with subscript [1] and the input virtual terminals with subscript [1] also correspond one by one. Based on the modeling method of modeling separately according to the processing board, the input virtual terminals with subscript [0] can only be received through the 1# processing board, and the input virtual terminals with subscript [1] can only be received through the 2# processing board.

[0053] When the program is powered on and initialized, the control commands corresponding to all input variables are default cleared to "0" once.

[0054] When the management board receives that the 1# processing board has a communication interruption and the 2# processing board has normal communication, the input variables with subscript [0] having a receiving relationship are no longer updated, and the input variables with subscript [1] having a receiving relationship continue to be updated. At this time, the program needs to clear the control commands corresponding to all input variables with subscript [0] (regardless of whether the variable has a receiving relationship) to "0", and then OR them with the control commands corresponding to the input variables of the 2# processing board with normal communication (regardless of whether the variable has a receiving relationship) to generate the outlet command corresponding to the relay outlet; vice versa.

[0055] Although the above method can solve the clamped problem, there are constraints. The model must be established according to the established method, and the program processing method depends on the modeling method. It is not very flexible to implement.

[0056] Embodiment Two:

[0057] On the basis of Embodiment 1, this embodiment discloses a solution to the clamping problem of the relay outlet in an intelligent substation, namely the unbinding method. This method does not require manual formulation of a modeling method, and the program processing method does not depend on the modeling method. It can conveniently solve the clamping problem, improve adaptability and flexibility, but is relatively more complex. The unbinding method can be modeled separately for each processing board as in Embodiment 1, or can be modeled uniformly for the entire device.

[0058] The unified modeling of the entire device is as follows: Establish a unified AccessPoint access point. All GOOSE input virtual terminals are built in the "G1 access point", and are no longer distinguished by processing board. Establish a unified ConnectedAP connection point. All network interfaces of the entire device are built in the "G1 connection point", and are no longer distinguished by processing board.

[0059] After the unified modeling of the entire device, a certain input virtual terminal with subscript [0] is either received through the 1# processing board or through the 2# processing board. And it is not required that all input virtual terminals with subscript [0] are received through the same processing board. The same is true for the input virtual terminals with subscript [1]. Which processing board a certain input virtual terminal is specifically received by depends on the connection of the virtual terminal during on-site integration of the SCD. Therefore, the method of clearing the entire set of control commands by subscript in Embodiment 1 is no longer applicable.

[0060] Implementation steps of the unbinding method:

[0061] Step 1: Each time the device is powered on, parse the GOOSESUB in the CCD file, and generate the corresponding subscription information of the input virtual terminal (these subscription information include the control block number, the receiving board slot number, the first board receiving network port number, and the second board receiving network port number) into a private information file;

[0062] Step 2: When the program is powered on and initialized, all control commands corresponding to input variables are default cleared to "0" once;

[0063] Step 3: By reading the private information file, judge whether there is a receiving relationship for each input variable (the input variable corresponding to the virtual terminal existing in the file has a receiving relationship, and the input variable corresponding to the virtual terminal not existing in the file does not have a receiving relationship), and obtain the receiving board slot number corresponding to each input variable with a receiving relationship;

[0064] Step 4: During the operation of the program, process in real time according to whether there is a receiving relationship for each input variable. If there is no receiving relationship, keep the initial state of the control command corresponding to the input variable (the state in Step 2 above). For each input variable with a receiving relationship, it is necessary to first judge whether the communication of its corresponding receiving board is normal. If the communication is interrupted, clear the control command corresponding to this input variable to "0"; otherwise, directly use the value of this input variable as the control command;

[0065] Step 5: OR the control commands corresponding to all input variables (including input variables without reception relationships) according to the export objects to generate the export commands for the corresponding exports of the export board.

[0066] The specific example is as follows:

[0067] (1) There are 4 input virtual terminals with reception relationships in the SCD file. Each input virtual terminal subscribes to 1 control block, and the subscription relationships are as follows:

[0068]

[0069] B02.CBR.Goose_Ctr1_IN[0] received from port 5-A and B02.CBR.Goose_Ctr1_IN[1] received from port 8-B jointly control output board export 1;

[0070] B02.CBR.Goose_Ctr2_IN[1] received from port 5-B and B02.CBR.Goose_Ctr2_IN[0] received from port 8-A jointly control output board export 2;

[0071] (2) Generate a private information file through GOOSEPUB in the CCD file

[0072] The format of the private information file is as follows:

[0073] [DESC_MODIGY NUM=4]

[0074] B02.CBR.Goose_Ctr1_IN[0]: 0x01050100

[0075] B02.CBR.Goose_Ctr2_IN[0]: 0x02080100

[0076] B02.CBR.Goose_Ctr1_IN[1]: 0x03080200

[0077] B02.CBR.Goose_Ctr2_IN[1]: 0x04050200

[0078] The first line is the total number of subscribed virtual terminals;

[0079] Starting from the second line, each line corresponds to a subscription message in the order of virtual terminals in the CCD file. The left side of the colon is the input virtual terminal; the right side of the colon is the corresponding physical information, in the format of 0xAABBCCDD, where 0xAA is the control block number corresponding to the input virtual terminal (sorted by GOOSESUB in the CCD file, starting from 1), 0xBB is the slot number of the receiving board corresponding to the input virtual terminal, 0xCC is the receiving network port number 1 corresponding to the input virtual terminal (0 represents invalid, 1 corresponds to port A, 2 corresponds to port B, etc.), and 0xDD is the receiving network port number 2 corresponding to the input virtual terminal (the meaning is the same as network port number 1, and network port number 2 is meaningful only when dual-network receiving is used).

[0080] This method uses a management board to monitor the communication status of control commands issued by two processing boards in real time. If the management board detects that it has not received a heartbeat message from a processing board within a certain period of time, before generating an output command, it clears all control commands for the corresponding processing board to zero. It then ORs these with the corresponding control commands from the processing board with normal communication to generate the output command for the corresponding relay output. This solves the problem of relay clamping, thereby reducing the scope of the fault and preventing the problem of a single processing board experiencing an abnormality, preventing the other processing board from controlling the output board's output channel, which could lead to a loss of functionality for the entire device.

[0081] Embodiment three:

[0082] A smart substation relay outlet clamping solution system, which can implement the smart substation relay outlet clamping solution described in embodiment 1 or 2, includes:

[0083] Power-on initialization module: used to power on and initialize the device after completing pre-operation preparations;

[0084] Monitoring module: used to monitor whether each processing board is communicating normally before responding to the control command of each processing board;

[0085] Control command clearing module: used for clearing all control commands of the processing board with communication interruption before generating an export command in response to a communication interruption of any processing board;

[0086] Control command acquisition module: used to acquire the control command issued by any processing board with normal communication in response to the normal communication of the processing board;

[0087] Export command synthesis module: used to OR the cleared and used control commands to generate the export command corresponding to each relay output;

[0088] Channel control module: used to control the opening and closing of the corresponding exit channel of the output board based on the exit command.

[0089] Embodiment 4:

[0090] An embodiment of the present invention further provides an intelligent substation relay outlet clamping solution device, which can implement the intelligent substation relay outlet clamping solution method described in Embodiment 1 or 2, including a processor and a storage medium;

[0091] The storage medium is used to store instructions;

[0092] The processor is used to operate according to the instructions to execute the steps of the following method:

[0093] Power on and initialize the device that has completed the pre - operation preparation;

[0094] Before responding to the control commands of each processing board, monitor whether the communication of each processing board is normal;

[0095] In response to a communication interruption of any processing board, before generating an outlet command, clear all the control commands of the processing board with the communication interruption;

[0096] In response to the normal communication of any processing board, retrieve the control commands issued by the processing board with normal communication;

[0097] OR the cleared and retrieved control commands to generate outlet commands corresponding to each relay outlet;

[0098] Based on the outlet commands, control the on - off of the corresponding outlet channels of the output board.

[0099] Embodiment 5:

[0100] An embodiment of the present invention further provides a computer - readable storage medium, which can implement the intelligent substation relay outlet clamping solution method described in Embodiment 1 or 2. A computer program is stored thereon, and when the program is executed by a processor, it implements the steps of the following method:

[0101] Power on and initialize the device that has completed the pre - operation preparation;

[0102] Before responding to the control commands of each processing board, monitor whether the communication of each processing board is normal;

[0103] In response to a communication interruption of any processing board, before generating an outlet command, clear all the control commands of the processing board with the communication interruption;

[0104] In response to the normal communication of any processing board, retrieve the control commands issued by the processing board with normal communication;

[0105] OR the cleared and retrieved control commands to generate outlet commands corresponding to each relay outlet;

[0106] Based on the outlet commands, control the on - off of the corresponding outlet channels of the output board.

[0107] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0108] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0109] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0110] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0111] The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An intelligent substation relay outlet clamping solution, characterized in that Including: Power on and initialize the device after completing the pre - operation preparation; Before responding to the control commands of each processing board, monitor whether the communication of each processing board is normal; In response to a communication interruption on any processing board, clear all the control commands of the processing board with the communication interruption before generating the exit command; In response to normal communication on any processing board, retrieve the control commands issued by the processing board with normal communication; Perform an OR operation on the cleared and retrieved control commands to generate exit commands corresponding to each relay outlet; Based on the exit commands, control the on - off of the corresponding outlet channels of the output board.

2. The intelligent substation relay outlet clamping solution according to claim 1, characterized in that, Pre - operation preparation includes: Establish AccessPoint access points and ConnectedAP connection points corresponding to each processing board in the ICD file; Divide the input virtual terminals corresponding to each processing board through the AccessPoint access point in the ICD file; Divide the slot numbers and network ports corresponding to each processing board through the ConnectedAP connection point in the ICD file; Import the ICD file by the configuration tool to realize the virtual terminal connection between devices and complete the SCD file integration; Export the CCD file from the SCD file by the configuration tool and download the CCD file into the device to complete the preparation.

3. The intelligent substation relay outlet clamping solution according to claim 2, characterized in that, Power on and initialize the device after completing the pre - operation preparation, including: when the device is powered on, clear the control commands corresponding to all input virtual terminals as the initial state.

4. The intelligent substation relay outlet clamping solution according to claim 1, characterized in that Pre - operation preparation includes: Establish a unified AccessPoint access point and ConnectedAP connection point for the entire device in the ICD file; The AccessPoint access point in the ICD file contains the input virtual terminals corresponding to all processing boards of the entire device; The ConnectedAP connection point in the ICD file contains the slot numbers and network ports corresponding to all processing boards of the entire device; Import the ICD file by the configuration tool to realize the virtual terminal connection between devices and complete the SCD file integration; Export the CCD file from the SCD file by the configuration tool and download the CCD into the device to complete the preparation.

5. The intelligent substation relay outlet clamping solution according to claim 4, characterized in that Power on and initialize the device after completing the pre - operation preparation, including: When the device is powered on, parse the GOOSESUB in the CCD file, generate the corresponding input virtual terminal subscription information into a private information file, and at the same time clear the control commands corresponding to all input virtual terminals as the initial state; Read the private information file, obtain and judge whether there is a receiving relationship for each input variable, and obtain the slot numbers of the processing boards corresponding to each input variable with a receiving relationship.

6. The intelligent substation relay outlet clamping solution system according to claim 5, characterized in that, Obtain and judge whether there is a receiving relationship for each input variable, including: When the input variable has no receiving relationship, maintain the initial state of the control command corresponding to the input variable; When the input variable has a receiving relationship, do not maintain the initial state of the control command corresponding to the input variable.

7. The intelligent substation relay outlet clamping solution according to claim 1, characterized in that Monitor whether the communication of each processing board is normal, including: monitor whether the heartbeat message sent by the processing board is received within the specified time. Among them, if the heartbeat message sent by the processing board is not received within the specified time, it means a communication interruption, and if the heartbeat message sent by the processing board is received within the specified time, it means normal communication.

8. An intelligent substation relay outlet clamping solution system, characterized in that Including: Power - on initialization module: used to power on and initialize the device after completing the pre - operation preparation; Monitoring module: It is used to monitor whether the communication of each processing board is normal before responding to the control commands of each processing board; Control command clearing module: It is used to clear all the control commands of the processing board with communication interruption before generating the exit command when communication interruption occurs in any processing board; Control command fetching module: It is used to fetch the control commands issued by the processing board with normal communication when the communication of any processing board is normal; Exit command synthesis module: It is used to OR the cleared and fetched control commands to generate the exit commands corresponding to each relay exit; Channel control module: It is used to control the on / off of the corresponding exit channels of the output board based on the exit commands.

9. An intelligent substation relay outlet clamping solution device, characterized in that, It includes a processor and a storage medium; The storage medium is used to store instructions; The processor is used to operate according to the instructions to execute the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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