Method, device, equipment and medium for non-power-off transmission of intelligent substation stability control device

Abstract

The present invention discloses a method, device, equipment and medium for non-power-off transmission of a stability control device in a smart substation, which is used to solve the technical problem that the existing stability control devices applied to smart substations cannot achieve non-power-off transmission. The present invention includes: when it is detected that the test pressure plate of the stability control device is put in, it is judged whether the stability control device meets the test state; if so, the stability control device sends a load shedding export signal to the stability control intelligent terminal; the stability control intelligent terminal responds to the load shedding export signal and sends a tripping command to the load interval intelligent terminal through the process layer switch; the load interval intelligent terminal responds to the tripping command and performs a cutting operation on the load interval corresponding to the load shedding export signal; it is judged whether the load interval is successfully cut; if so, the stability control intelligent terminal sends a closing command to the load interval intelligent terminal; the load interval intelligent terminal responds to the closing command and performs a closing operation; when the closing is successful, it is determined that the non-power-off transmission of the stability control is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid stability control, and particularly to a method, device, equipment and medium for non-power-off transmission of a stability control device in an intelligent substation. Background Art

[0002] To meet the development of digital and intelligent operation and maintenance of the power grid, currently newly commissioned substations are all intelligent substations. The difference between an intelligent substation and a conventional substation is that information transmission is achieved by replacing cables with optical fibers and electrical signals with optical signals. The stability control system is the second line of defense to ensure the safe and stable operation of the power system. The refusal of the stability control device to operate may lead to the destruction of power grid stability and even cause large-scale power outages. Therefore, the refusal of the stability control system to operate is the primary risk in power grid operation, and the switch transmission of the stability control device is an important measure to prevent the refusal of the stability control device to operate. However, the stability control device still adopts the design idea of a conventional substation and realizes load shedding tripping through external cables, resulting in the need to lay long cables to the intelligent terminal of the corresponding interval and not having a closing loop, so non-power-off transmission cannot be achieved. In addition, the standard configuration has 16 load shedding outlets, and the test transmission outlets require the cooperation of load component intervals to be powered off. However, during actual operation, multiple intervals cannot be powered off simultaneously, resulting in a long verification time cycle and low efficiency for all outlet transmissions, and bringing a high risk to the power grid. Summary of the Invention

[0003] The present invention provides a method, device, equipment and medium for non-power-off transmission of a stability control device in an intelligent substation, which is used to solve the technical problem that the existing stability control device applied to an intelligent substation cannot achieve non-power-off transmission.

[0004] The present invention provides a method for non-power-off transmission of a stability control device in an intelligent substation, including:

[0005] When it is detected that the test pressing plate of the stability control device is put in, it is judged whether the stability control device meets the test state;

[0006] If so, the stability control device sends a load shedding outlet signal to the stability control intelligent terminal;

[0007] The stability control intelligent terminal responds to the load shedding outlet signal and sends a tripping command to the load interval intelligent terminal through the process layer switch;

[0008] The load interval intelligent terminal responds to the tripping command and performs an operation to cut off the load interval corresponding to the load shedding outlet signal;

[0009] It is judged whether the load interval is successfully cut off;

[0010] If so, the stability control intelligent terminal sends a closing command to the load interval intelligent terminal;

[0011] The load interval intelligent terminal responds to the closing command and performs a closing operation;

[0012] When the closing is successful, it is determined that the stable control power-off transmission is completed.

[0013] Optionally, the step of determining whether the stable control device meets the test state includes:

[0014] Determine whether the stable control intelligent terminal receives a test state signal sent by the stable control device;

[0015] If so, it is determined that the stable control device meets the test state.

[0016] Optionally, the step of determining whether the load interval is successfully removed includes:

[0017] Determine whether the test state signal of the stable control device is 1;

[0018] If so, determine whether the stable control device meets the load shedding action criterion;

[0019] If it is satisfied, after the load shedding outlet signal changes, determine whether the switch position signal of the load interval intelligent terminal corresponding to the load shedding outlet signal changes from 1 to 0;

[0020] If so, determine whether the protection trip signal of the load interval protection device remains 0 within a time window of a preset duration before the switch position of the load interval intelligent terminal changes to 0;

[0021] If so, it is determined that the load interval is successfully removed.

[0022] Optionally, it further includes:

[0023] When it is determined that the load interval removal fails, determine whether the stable control intelligent terminal receives a protection trip signal;

[0024] If not, it is determined that the load interval trip circuit is abnormal, and the power-off transmission is ended;

[0025] If so, it is determined that there is a fault in the load interval, closing on a fault is prohibited, and the power-off transmission is ended.

[0026] The present invention also provides a power-off transmission device for a stable control device in an intelligent substation, including:

[0027] A test state judgment module, configured to determine whether the stable control device meets the test state when it is detected that the stable control device inputs a test pressing plate;

[0028] A load shedding outlet signal sending module, configured to, if so, the stable control device sends a load shedding outlet signal to the stable control intelligent terminal;

[0029] A tripping command sending module, configured to send a tripping command to a load bay intelligent terminal by a process layer switch when the stability control intelligent terminal responds to the load shedding outlet signal;

[0030] A cutting module, configured to perform a cutting operation on the load bay corresponding to the load shedding outlet signal when the load bay intelligent terminal responds to the tripping command;

[0031] A cutting judgment module, configured to judge whether the load bay is successfully cut;

[0032] A closing command sending module, configured to, if so, send a closing command to the load bay intelligent terminal by the stability control intelligent terminal;

[0033] A closing module, configured to perform a closing operation when the load bay intelligent terminal responds to the closing command;

[0034] An uninterrupted power supply transmission completion determination module, configured to determine that the stability control uninterrupted power supply transmission is completed when the closing is successful.

[0035] Optionally, the test status judgment module includes:

[0036] A test status signal receiving and judgment sub-module, configured to judge whether the stability control intelligent terminal receives a test status signal sent by a stability control device;

[0037] A test status determination sub-module, configured to, if so, determine that the stability control device meets the test status.

[0038] Optionally, the cutting judgment module includes:

[0039] A test status signal judgment sub-module, configured to judge whether the test status signal of the stability control device is 1;

[0040] A load shedding action criterion judgment sub-module, configured to, if so, judge whether the stability control device meets the load shedding action criterion;

[0041] A switch position signal judgment sub-module, configured to, if met, judge whether the switch position signal of the load bay intelligent terminal corresponding to the load shedding outlet signal changes from 1 to 0 after the load shedding outlet signal changes;

[0042] A protection tripping signal judgment sub-module, configured to, if so, judge whether the protection tripping signal of the load bay protection device remains 0 within a preset time window before the switch position of the load bay intelligent terminal changes to 0;

[0043] A cutting determination sub-module, configured to, if so, determine that the load bay is successfully cut.

[0044] Optionally, the cutting judgment module further includes:

[0045] A sub-module for judging whether a signal is received, which is used to judge whether the stable control intelligent terminal receives a protection tripping signal when it is determined that the load interval removal fails;

[0046] A sub-module for judging the abnormality of the load interval tripping circuit, which is used to determine that the load interval tripping circuit is abnormal if the answer is no, and end the non-power-off transmission;

[0047] A fault judgment sub-module, which is used to determine that there is a fault in the load interval if the answer is yes, prohibit closing on the fault, and end the non-power-off transmission.

[0048] The present invention also provides an electronic device, which includes a processor and a memory:

[0049] The memory is used to store program codes and transmit the program codes to the processor;

[0050] The processor is used to execute the non-power-off transmission method of the stable control device in the intelligent substation according to the instructions in the program codes as described in any one of the above.

[0051] The present invention also provides a computer-readable storage medium, which is used to store program codes, and the program codes are used to execute the non-power-off transmission method of the stable control device in the intelligent substation as described in any one of the above.

[0052] It can be seen from the above technical solutions that the present invention has the following advantages: when detecting that the test pressing plate of the stable control device is put in, the present invention judges whether the stable control device meets the test state; if so, the stable control device sends a load shedding outlet signal to the stable control intelligent terminal; the stable control intelligent terminal responds to the load shedding outlet signal and sends a tripping command to the load interval intelligent terminal through the process layer switch; after completing the operations corresponding to the tripping command, perform a removal operation on the load interval corresponding to the load shedding outlet signal; judge whether the load interval is successfully removed; if so, the stable control intelligent terminal sends a closing command to the load interval intelligent terminal; the load interval intelligent terminal responds to the closing command and performs a closing operation; when the closing is successful, it is determined that the non-power-off transmission of the stable control is completed. The non-power-off transmission of the stable control device in the intelligent substation is realized. Description of the Drawings

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0054] Figure 1 It is a schematic diagram of the non-power-off transmission of a stable control device provided by an embodiment of the present invention;

[0055] Figure 2 This is a flowchart of the steps of a method for non-power-off transmission of a stability control device in an intelligent substation provided by an embodiment of the present invention;

[0056] Figure 3 This is an execution flowchart of a method for non-power-off transmission of a stability control device in an intelligent substation provided by an embodiment of the present invention;

[0057] Figure 4 This is a structural block diagram of a non-power-off transmission device for a stability control device in an intelligent substation provided by an embodiment of the present invention. Detailed implementation manners

[0058] An embodiment of the present invention provides a method, device, equipment and medium for non-power-off transmission of a stability control device in an intelligent substation, which is used to solve the technical problem that the existing stability control devices applied to intelligent substations cannot achieve non-power-off transmission.

[0059] In order to make the invention purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0060] Please refer to Figure 1 , Figure 1 This is a schematic diagram of non-power-off transmission of a stability control device provided by an embodiment of the present invention. It includes: a stability control device, a stability control intelligent terminal, a load interval protection device, a GOOSE process layer switch, a load interval intelligent terminal and a load interval switch mechanism.

[0061] Among them, the load interval protection device refers to the line protection device corresponding to the load interval of the stability control device. When a fault occurs on the line, the load interval protection device will issue a protection tripping command to trip the switch and cut off the line fault.

[0062] The GOOSE process layer switch refers to an optical switch for GOOSE publication and forwarding in the process layer network, which realizes the sharing and forwarding of GOOSE publication commands.

[0063] The load interval intelligent terminal refers to a device that receives the optical signal commands of the upper-level switch for opening and closing and converts them into electrical signals for transmission to the load interval switch mechanism, and receives the switch position electrical signal information of the load interval switch structure and converts it into optical signals for publication to the upper-level GOOSE process layer switch.

[0064] The load interval switch mechanism refers to a mechanical mechanism that realizes switch opening and closing and reflects the switch state.

[0065] The stable control intelligent terminal is a device that performs optoelectronic signal conversion according to the conversion setting relationship, and is used to receive electrical signals such as the load shedding outlet signal and test status signal of the stable control device, optical signals such as the protection trip signal of the load interval protection device, and the switch position lighting signal of the load interval intelligent terminal. It is also used to issue a load shedding opening optical signal when the load shedding action criterion is met, and issue a load closing optical signal after a set delay when the criterion for the power-on transmission test closing is met.

[0066] In one example, the conversion setting relationship refers to the corresponding relationship between the optoelectronic inputs of the stable control intelligent terminal and the load opening and closing optical signals being interchanged and converted. When the corresponding electrical signal hard input and optical signal input of the stable control device meet the conditions, the corresponding optical signal publishes a change to 1. The relationships among the load shedding outlet of the stable control device, the GOOSE publication of the stable control intelligent terminal, and the GOOSE subscription of the load interval intelligent terminal are shown in Table 1:

[0067] Table 1

[0068]

[0069] The corresponding contact for the load shedding outlet of the stable control device is that after the stable control device operates, the load interval is removed. When the corresponding interval, such as Load 1, is removed, the corresponding hard contact for the load shedding trip outlet of Load 1 closes; the sequence number of the load shedding electrical signal input of the stable control intelligent terminal is the sequence number of the contact accessed by the load shedding trip outlet of the corresponding load interval, corresponding in sequence. The outlet contact of Load 1 of the stable control device is connected to Input 1 of the stable control intelligent terminal; the GOOSE publication of the stable control intelligent terminal is the GOOSE control block published by the stable control intelligent terminal to the process layer network. When the above conversion relationship is met, the corresponding GOOSE publication changes to 1. For example, go1.Tr is the trip outlet publication of Load 1 interval, and go1.Op is the closing outlet publication of Load 1 interval; the subscription of the intelligent terminal for Load 1 - 16 intervals refers to the GOOSE input corresponding to the load interval intelligent terminal, that is, when the GOOSE publication of the stable control intelligent terminal changes to 1, the corresponding GOOSE input of the load interval intelligent terminal changes to 1. For example, when go1.Tr of the stable control intelligent terminal changes to 1, the input of GGIO.T.stVal of the intelligent terminal for Load 1 interval changes to 1, and the intelligent terminal for Load 1 interval issues a trip command to the switch mechanism of the load interval, causing the switch to open.

[0070] Please refer to Figure 2 , on the basis of Figure 1 , Figure 2 is the step flowchart of a method for non-power-off transmission of a stable control device in an intelligent substation provided by an embodiment of the present invention.

[0071] A method for non-power-off transmission of a stable control device in an intelligent substation provided by the present invention may specifically include the following steps:

[0072] Step 201: When it is detected that the test pressure plate of the stability control device is inserted, determine whether the stability control device meets the test state;

[0073] The test pressure plate is a dedicated device used to isolate circuits or test protection devices in the power system.

[0074] In the embodiment of the present invention, when the test pressure plate of the stability control device is inserted, it is first necessary to determine whether the stability control device meets the test state.

[0075] In one example, the steps of determining whether the stability control device meets the test state include:

[0076] S11: Determine whether the stability control intelligent terminal receives the test state signal sent by the stability control device;

[0077] S12: If so, determine that the stability control device meets the test state.

[0078] In specific implementation, determining that the stability control device meets the test state means that after the test pressure plate of the stability control device is inserted, the steady-state device enters the test state and the stability control intelligent terminal receives the test state signal of the stability control device. If not, it is determined that the state of the stability control device is abnormal, recorded as abnormal test state input, and the non-stop power transmission is ended.

[0079] Step 202: If so, the stability control device sends a load shedding outlet signal to the stability control intelligent terminal;

[0080] Step 203: The stability control intelligent terminal responds to the load shedding outlet signal and sends a tripping command to the load interval intelligent terminal through the process layer switch;

[0081] In the embodiment of the present invention, after the stability control device enters the test state, it can send a load shedding outlet signal to the stability control intelligent terminal to trigger the interval load shedding operation.

[0082] The stability control intelligent terminal confirms that it has received the corresponding load shedding signal, that is, the stability control device sends out a load 1 interval cut-off signal, then the stability control intelligent terminal receives the corresponding load 1 interval cut-off input signal of the stability control device; if the stability control intelligent terminal does not receive the corresponding load interval cut-off signal, it is determined that the load shedding of the stability control device is abnormal, recorded as abnormal load shedding function or loop of the stability control device, and the non-stop power transmission is ended.

[0083] When the stability control intelligent terminal receives the corresponding load 1 interval cut-off input signal of the stability control device, it can send a tripping command to the load interval terminal through the process layer switch (GOOSE process layer switch).

[0084] In one example, the stable control intelligent terminal sending a GOOSE trip command means that after the stable control intelligent terminal receives the incoming signal of the load shedding signal, the GOOSE command for tripping the corresponding load interval changes to 1. For example, if the signal for cutting off the load interval 1 is received, the GOOSE command go1.Tr for cutting off the load interval 1 changes to 1.

[0085] Step 204, the load interval intelligent terminal responds to the trip command and performs a cut-off operation on the load interval corresponding to the load shedding outlet signal;

[0086] Step 205, determine whether the load interval is successfully cut off;

[0087] In the embodiment of the present invention, the step of determining whether the load interval is successfully cut off may specifically include the following sub-steps:

[0088] S51, determine whether the test status signal of the stable control device is 1;

[0089] S52, if so, determine whether the stable control device meets the load shedding action criterion;

[0090] S53, if it meets, determine whether the switch position signal of the load interval intelligent terminal corresponding to the load shedding outlet signal changes from 1 to 0 after the load shedding outlet signal changes;

[0091] S54, if so, determine whether the protection trip signal of the load interval protection device remains 0 within the time window of the preset duration before the switch position of the load interval intelligent terminal changes to 0;

[0092] S55, if so, determine that the load interval is successfully cut off.

[0093] In a specific implementation, the condition for determining the successful cut-off of the corresponding load interval is to determine that the power-on transmission test closing criterion is met, specifically as follows:

[0094] 1. The test status signal of the stable control device is 1;

[0095] 2. Meet the load shedding action criterion of the stable control device;

[0096] 3. After the load shedding outlet signal of the stable control device changes, then the switch position signal of the corresponding load interval intelligent terminal changes from 1 to 0;

[0097] 4. Within the 5s time window before the switch position of the load interval intelligent terminal changes to 0, the protection trip signal of the load interval protection device remains 0.

[0098] Further, in the embodiment of the present invention, step 205 may further include the following sub-steps:

[0099] S56, when it is determined that the load interval cut-off fails, determine whether the stable control intelligent terminal receives the protection trip signal;

[0100] S57. If not, it is determined that the load interval tripping circuit is abnormal, and the non-stop power transmission is ended.

[0101] S58. If so, it is determined that there is a fault in the load interval, closing onto the fault is prohibited, and the non-stop power transmission is ended.

[0102] Specifically, when the closing criterion for the non-stop power transmission test is not met, it is determined again whether the stability control intelligent terminal receives the interval protection tripping command. If not received, the abnormal load interval tripping circuit is recorded, and the non-stop power transmission is ended; if received, the existence of a fault in the load interval is recorded, closing onto the fault is prohibited, and the non-stop power transmission is ended.

[0103] Step 206. If so, the stability control intelligent terminal sends a closing command to the load interval intelligent terminal.

[0104] After determining that the load interval is successfully removed, the stability control intelligent terminal can send a closing command to the load interval intelligent terminal through the GOOSE process layer switch after a set delay to close the corresponding load interval. For example, if it is determined that the removal of load interval 1 is successful, the go1.Op of the closing GOOSE command for load interval 1 changes to 1. The judgment condition for the successful closing of the corresponding load interval: within 500 ms after the sending of the load interval closing GOOSE command, the stability control intelligent terminal receives that the position of the load interval switch changes from the open position to the closed position; otherwise, the abnormal load interval closing circuit is recorded, and the non-stop power transmission is ended.

[0105] Step 207. The load interval intelligent terminal responds to the closing command and performs the closing operation.

[0106] Step 208. When the closing is successful, it is determined that the stability control non-stop power transmission is completed.

[0107] When the closing is successful, it indicates that the stability control non-stop power transmission is completed, and the result is recorded. The stability control non-stop power transmission test for the corresponding load interval is completed, the load shedding function and circuit of the corresponding load interval are recorded as normal, and the non-stop power transmission is ended.

[0108] In the present invention, when it is detected that the test pressing plate of the stability control device is put in, it is determined whether the stability control device meets the test state; if so, the stability control device sends a load shedding outlet signal to the stability control intelligent terminal; the stability control intelligent terminal responds to the load shedding outlet signal and sends a tripping command to the load interval intelligent terminal through the process layer switch; after completing the operations corresponding to the tripping command, the load shedding operation is performed on the load interval corresponding to the load shedding outlet signal; it is determined whether the load interval is successfully removed; if so, the stability control intelligent terminal sends a closing command to the load interval intelligent terminal; the load interval intelligent terminal responds to the closing command and performs the closing operation; when the closing is successful, it is determined that the stability control non-stop power transmission is completed. The non-stop power transmission of the stability control device in the intelligent substation is realized.

[0109] For ease of understanding, the embodiments of the present invention will be described below through specific examples:

[0110] As Figure 3 shown, Figure 3 This is the execution flowchart of a method for non-power-off transmission of a stability control device in an intelligent substation provided by an embodiment of the present invention.

[0111] After the stability control device inputs the test pressure plate, first determine whether the stability control device meets the test state. If not, it is determined that the state of the stability control device is abnormal; if so, a transmission test of the stability control device is performed.

[0112] The transmission test of the stability control device means that the stability control device issues a tripping command to cut the load, and the stability control intelligent terminal confirms that it has received the corresponding load shedding signal. That is, when the stability control device issues a load 1 interval cut-off signal, the stability control intelligent terminal receives the stability control device corresponding load 1 interval cut-in signal; if the stability control intelligent terminal does not receive the corresponding load interval cut-off signal, it is determined that the load shedding of the stability control device is abnormal, recorded as an abnormality in the load shedding function or loop of the stability control device, and the non-power-off transmission ends.

[0113] After the stability control intelligent terminal receives the load shedding signal input, the stability control intelligent terminal can send a GOOSE tripping command to change the corresponding load interval tripping GOOSE command to 1. For example, if it receives a load 1 interval cut-off signal, the load 1 interval GOOSE command go1.Tr for cut-off is changed to 1.

[0114] Among them, the condition for judging the success of the corresponding load interval cut-off is to judge that the closing criterion for the non-power-off transmission test is met:

[0115] 1. The test state signal of the stability control device is 1;

[0116] 2. The load shedding action criterion of the stability control device is met;

[0117] 3. After the load shedding outlet signal of the stability control device changes, then the switch position signal of the corresponding load interval intelligent terminal changes from 1 to 0;

[0118] 4. Within the first 5 s time window when the switch position of the load interval intelligent terminal changes to 0, the protection tripping signal of the load interval protection device remains 0.

[0119] When the closing criterion for the non-power-off transmission test is not met, it is determined again whether the stability control intelligent terminal has received the interval protection tripping command. If not, the load interval tripping loop is recorded as abnormal, and the non-power-off transmission ends; if received, it is recorded that there is a fault in the load interval, and closing on the fault is prohibited, and the non-power-off transmission ends.

[0120] After determining that the corresponding load interval is successfully removed, the stable control intelligent terminal can send a GOOSE closing command according to the setting delay for closing operation. For example, if it is determined that the load 1 interval is successfully removed, the go1.Op of the load 1 interval closing GOOSE command changes to 1; the judgment condition for the successful closing of the corresponding load interval: within 500 ms after the load interval closing GOOSE command is sent, the stable control intelligent terminal receives that the position of the load interval switch changes from the off position to the on position. Otherwise, record the abnormality of the load interval closing circuit and end the power-off transmission test.

[0121] When the corresponding load interval is successfully closed, it is determined that the stable control power-off transmission test is completed, and the result is recorded.

[0122] Please refer to Figure 4 , Figure 4 which is the structural block diagram of a power-off transmission device for a stable control device in an intelligent substation provided by an embodiment of the present invention.

[0123] An embodiment of the present invention provides a power-off transmission device for a stable control device in an intelligent substation, including:

[0124] A test state judgment module 401, configured to judge whether the stable control device meets the test state when it is detected that the test pressure plate of the stable control device is put in;

[0125] A load shedding outlet signal sending module 402, configured to, if so, the stable control device sends a load shedding outlet signal to the stable control intelligent terminal;

[0126] A trip command sending module 403, configured to the stable control intelligent terminal responds to the load shedding outlet signal and sends a trip command to the load interval intelligent terminal through the process layer switch;

[0127] A removal module 404, configured to the load interval intelligent terminal responds to the trip command and performs a removal operation on the load interval corresponding to the load shedding outlet signal;

[0128] A removal judgment module 405, configured to judge whether the load interval is successfully removed;

[0129] A closing command sending module 406, configured to, if so, the stable control intelligent terminal sends a closing command to the load interval intelligent terminal;

[0130] A closing module 407, configured to the load interval intelligent terminal responds to the closing command and performs a closing operation;

[0131] A power-off transmission completion judgment module 408, configured to when the closing is successful, judge that the stable control power-off transmission is completed.

[0132] In the embodiment of the present invention, the test state judgment module 401 includes:

[0133] The test status signal receiving and judging sub-module is used to judge whether the stability control intelligent terminal receives the test status signal sent by the stability control device;

[0134] The test status determination sub-module is used to determine that the stability control device meets the test status if so.

[0135] In the embodiment of the present invention, the tripping judgment module 405 includes:

[0136] The test status signal judgment sub-module is used to judge whether the test status signal of the stability control device is 1;

[0137] The load shedding action criterion judgment sub-module is used to judge whether the stability control device meets the load shedding action criterion if so;

[0138] The switch position signal judgment sub-module is used to judge whether the switch position signal of the load interval intelligent terminal corresponding to the load shedding outlet signal changes from 1 to 0 after the load shedding outlet signal changes if it is satisfied;

[0139] The protection trip signal judgment sub-module is used to judge whether the protection trip signal of the load interval protection device remains 0 within a preset time window before the switch position of the load interval intelligent terminal changes to 0 if it is so;

[0140] The tripping determination sub-module is used to determine that the load interval is successfully tripped if it is so.

[0141] In the embodiment of the present invention, the tripping judgment module 405 further includes:

[0142] The signal received or not judgment sub-module is used to judge whether the stability control intelligent terminal receives the protection trip signal when it is determined that the load interval tripping fails;

[0143] The load interval tripping circuit abnormal determination sub-module is used to determine that the load interval tripping circuit is abnormal and end the non-stop power transmission if not;

[0144] The fault determination sub-module is used to determine that there is a fault in the load interval, prohibit closing on the fault, and end the non-stop power transmission if it is so.

[0145] The embodiment of the present invention also provides an electronic device, which includes a processor and a memory:

[0146] The memory is used to store program codes and transmit the program codes to the processor;

[0147] The processor is used to execute the non-stop power transmission method of the intelligent substation stability control device in the embodiment of the present invention according to the instructions in the program codes.

[0148] An embodiment of the present invention further provides a computer-readable storage medium for storing program codes, which are used to execute the method for non-power-off transmission of the intelligent substation stability control device according to the embodiment of the present invention.

[0149] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, devices, and units can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0150] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0151] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a device, or a computer program product. Therefore, the embodiments of the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the embodiments of the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0152] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be realized 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 processing machine, or other programmable data processing terminal devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal devices generate a device for realizing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0153] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured product including an instruction device, and the instruction device realizes the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0154] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device, so that a series of operation steps are executed on the computer or other programmable terminal device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable terminal device provide steps for implementing the functions specified in one process or multiple processes and / or boxes. Figure 1 One process or multiple processes and / or boxes Figure 1 Steps for implementing the functions specified in one box or multiple boxes.

[0155] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present invention.

[0156] Finally, it should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or terminal device comprising the said element.

[0157] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for non-power-off transmission of a stability control device in an intelligent substation, characterized in that, Including: When it is detected that the stability control device inputs the test pressure plate, determine whether the stability control device meets the test state; If so, the stability control device sends a load shedding outlet signal to the stability control intelligent terminal; The stability control intelligent terminal responds to the load shedding outlet signal and sends a tripping command to the load interval intelligent terminal through the process layer switch; The load interval intelligent terminal responds to the tripping command and performs a cutting operation on the load interval corresponding to the load shedding outlet signal; Determine whether the load interval is successfully cut; If so, the stability control intelligent terminal sends a closing command to the load interval intelligent terminal; The load interval intelligent terminal responds to the closing command and performs a closing operation; When the closing is successful, it is determined that the stable power-off transmission is completed; Among them, the step of determining whether the load interval is successfully cut includes: Determine whether the test state signal of the stability control device is 1; If so, determine whether the stability control device meets the load shedding action criterion; If it is satisfied, determine whether the switch position signal of the load interval intelligent terminal corresponding to the load shedding outlet signal changes from 1 to 0 after the load shedding outlet signal changes; If so, determine whether the protection tripping signal of the load interval protection device remains 0 within a preset time window before the switch position of the load interval intelligent terminal changes to 0; If so, it is determined that the load interval is successfully cut.

2. The method according to claim 1, wherein The step of determining whether the stability control device meets the test state includes: Determine whether the stability control intelligent terminal receives the test state signal sent by the stability control device; If so, it is determined that the stability control device meets the test state.

3. The method according to claim 1, wherein Also including: When it is determined that the load interval cutting fails, determine whether the stability control intelligent terminal receives a protection tripping signal; If not, it is determined that the load interval tripping circuit is abnormal, and the power-off transmission is ended; If so, it is determined that there is a fault in the load interval, closing on a fault is prohibited, and the power-off transmission is ended.

4. An intelligent substation stability control device power-off transmission device, characterized in that, Including: A test state judgment module, used to determine whether the stability control device meets the test state when it is detected that the stability control device inputs the test pressure plate; A load shedding outlet signal sending module, used for if so, the stability control device sends a load shedding outlet signal to the stability control intelligent terminal; A tripping command sending module, used for the stability control intelligent terminal to respond to the load shedding outlet signal and send a tripping command to the load interval intelligent terminal through the process layer switch; A cutting module, used for the load interval intelligent terminal to respond to the tripping command and perform a cutting operation on the load interval corresponding to the load shedding outlet signal; A cutting judgment module, used to determine whether the load interval is successfully cut; A closing command sending module, used for if so, the stability control intelligent terminal sends a closing command to the load interval intelligent terminal; A closing module, used for the load interval intelligent terminal to respond to the closing command and perform a closing operation; A stable power-off transmission completion determination module, used to determine that the stable power-off transmission is completed when the closing is successful; Among them, the cutting judgment module includes: A test state signal judgment sub-module, used to determine whether the test state signal of the stability control device is 1; The load shedding action criterion judgment sub-module is used to, if so, judge whether the stability control device meets the load shedding action criterion; The switch position signal judgment sub-module is used to, if it is satisfied, judge whether the switch position signal of the load interval intelligent terminal corresponding to the load shedding outlet signal changes from 1 to 0 after the load shedding outlet signal changes; The protection trip signal judgment sub-module is used to, if so, judge whether the protection trip signal of the load interval protection device remains 0 within a time window of a preset duration before the switch position of the load interval intelligent terminal changes to 0; The removal determination sub-module is used to, if so, determine that the load interval is successfully removed.

5. The device according to claim 4, characterized in that, The test state judgment module includes: The test state signal receiving and judgment sub-module is used to judge whether the stability control intelligent terminal receives the test state signal sent by the stability control device; The test state determination sub-module is used to, if so, determine that the stability control device meets the test state.

6. The device according to claim 4, wherein The removal judgment module further includes: The signal received or not judgment sub-module is used to judge whether the stability control intelligent terminal receives the protection trip signal when it is determined that the load interval removal fails; The load interval trip circuit abnormality determination sub-module is used to, if not, determine that the load interval trip circuit is abnormal and end the non-power-off transmission; The fault determination sub-module is used to, if so, determine that there is a fault in the load interval, prohibit closing on the fault, and end the non-power-off transmission.

7. An electronic device, characterized in that, The device includes a processor and a memory: The memory is used to store program code and transmit the program code to the processor; The processor is used to execute the non-power-off transmission method of the intelligent substation stability control device according to any one of claims 1-3 according to the instructions in the program code.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store program code, and the program code is used to execute the non-power-off transmission method of the intelligent substation stability control device according to any one of claims 1-3.

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