A substation-based remote sequential control checking method, system and device

Abstract

The application relates to a substation-based remote sequential control checking method, system and device, which comprises the following steps: S1, acquiring a first telemetering signal of a target device; S2, acquiring a to-be-sequentially-controlled task and obtaining a sequential control instruction by analysis, judging whether the sequential control locking logic of the sequential control instruction is correct, if correct, executing S3, if incorrect, executing S7; S3, receiving the sequential control instruction and generating an operation ticket, and intelligently preventing errors based on the operation ticket; S4, forwarding the operation ticket to the target device; S5, acquiring a second telemetering signal of the target device, comparing the first telemetering signal and the second telemetering signal to obtain the state change of the target device; S6, judging whether the state change of the target device is consistent with the preset state change, if not, modifying the to-be-sequentially-controlled task. The application performs double checking on remote sequential control in a virtual and actual field combination mode, and ensures the safety of one-key sequential control of a substation.

Description

TECHNICAL FIELD

[0001] The application relates to the field of substation one-key sequence control, and in particular to a remote sequence control checking method, system and device based on a substation. BACKGROUND

[0002] With the continuous development of intelligent technology, the substation one-key sequence control technology has been widely applied in practical application. The one-key sequence control is an operation mode of substation switching operation, which can realize operation item software prefabrication, operation task module type building, device state automatic identification, intelligent anti-misoperation interlocking checking, one-key starting of operation steps and automatic sequence execution of operation process, thereby saving a large amount of manpower and material resources and correspondingly improving the safety without manual direct operation on primary equipment.

[0003] At present, in the one-key sequence control engineering implementation of a newly-built or reconstructed substation of the power system, there is a lack of effective one-key sequence control field test and acceptance technical support, the test and acceptance of the one-key sequence control seriously depend on manual experience and frequent operation on primary equipment, the one-key sequence control logic function and operation ticket verification have no effective verification means, which brings great safety hazards. SUMMARY

[0004] The application aims to solve the technical problem of providing a remote sequence control checking method, system and device based on a substation, which can effectively verify the sequence control logic function and operation ticket, and ensure the safety of the substation one-key sequence control.

[0005] The technical scheme for solving the above technical problem is as follows: a remote sequence control checking method based on a substation, comprising the following steps,

[0006] S1, in an initial state, a first telemetering signal of a target device in a substation is acquired;

[0007] S2, a to-be-sequenced task is acquired, the to-be-sequenced task is parsed to obtain a sequence control instruction, and whether the sequence control instruction is correct is judged based on a virtual simulation mode, if correct, S3 is executed, and if incorrect, S7 is executed;

[0008] S3, the sequence control instruction is received by a one-key sequence control host and an operation ticket is generated, and the one-key sequence control host is intelligently prevented from misoperation based on the operation ticket;

[0009] S4, the operation ticket is forwarded to the target device through a data gateway machine, so as to perform one-key sequence control operation on the target device;

[0010] S5, a second telemetering signal of the target device is acquired, and the state change of the target device is acquired by comparing the first telemetering signal and the second telemetering signal;

[0011] S6, judging whether the state change of the target device is consistent with the preset state change in the task to be sequentially controlled, if the state change is consistent, determining that the one-key sequential control operation is successful, if the state change is not consistent, executing S7;

[0012] S7, modifying the task to be sequentially controlled, and returning to execute S2-S6 until the one-key sequential control operation is successful.

[0013] On the basis of the above technical solution, the application can also be improved as follows.

[0014] Further, in the S1, the first telemetry signal is an electrical parameter signal measured by the target device without executing the operation instruction of the operation ticket;

[0015] In the S5, the second telemetry signal is an electrical parameter signal measured by the target device after executing the operation instruction of the operation ticket;

[0016] The electrical parameter signal includes a current signal, a voltage signal and a power signal.

[0017] Further, in the S2, the process of judging whether the sequential control locking logic of the sequential control instruction is correct is,

[0018] S21, constructing and training a logic simulation model;

[0019] S22, inputting the sequential control instruction into the logic simulation model, and simulating the sequential control instruction by using the logic simulation model to obtain a simulation result;

[0020] S23, judging whether the simulation result matches the preset sequential control result in the task to be sequentially controlled, if matching, determining that the sequential control locking logic of the sequential control instruction is correct, if not matching, determining that the sequential control locking logic of the sequential control instruction is incorrect and executing S24;

[0021] S24, analyzing the unmatched simulation result to determine the source causing the mismatch; wherein the source includes the logic simulation model and the task to be sequentially controlled;

[0022] S25, when the source causing the mismatch is the logic simulation model, returning to the S21 to retrain the logic simulation model to improve the accuracy of the logic simulation model, and executing the S22-S24; when the source causing the mismatch is the task to be sequentially controlled, executing the S7.

[0023] Further, in the S3, the one-key sequential control host is intelligently prevented from error by an intelligent error prevention host based on the operation ticket, and the specific process of intelligent error prevention is,

[0024] The intelligent anti-misoperation host sends a remote unlock command to the one-click sequential control host to obtain the sole operating right of the target device. After the operation instructions on the operation ticket are completed, the intelligent anti-misoperation host sends a remote lock command to the one-click sequential control host to release the sole operating right of the target device.

[0025] Furthermore, in S4, the process of forwarding the operation ticket to the target device through the data gateway also includes the following steps:

[0026] Based on the telemetry configuration in the data communication gateway's scheduling link forwarding table file, a corresponding signal is triggered to perform a consistency check on the telemetry forwarding values ​​of the data communication gateway's centralized control link and the scheduling link.

[0027] Furthermore, in S5, comparing the first telemetry signal and the second telemetry signal to obtain the state change of the target device specifically involves:

[0028] The difference between the current signal in the first telemetry signal and the current signal in the second telemetry signal is calculated to obtain the current difference value.

[0029] The voltage signal in the first telemetry signal and the voltage signal in the second telemetry signal are subtracted to obtain the voltage difference value;

[0030] The power signal in the first telemetry signal and the power signal in the second telemetry signal are subtracted to obtain the power difference value;

[0031] The current difference, the voltage difference, and the power difference characterize the state change.

[0032] Furthermore, the preset state changes in the task to be controlled include preset current difference thresholds, preset voltage difference thresholds, and preset power difference thresholds. Therefore, S6 specifically involves...

[0033] Determine whether the current difference is within the current difference threshold range, determine whether the voltage difference is within the voltage difference threshold range, and determine whether the power difference is within the power difference threshold range;

[0034] If the current difference is within the current difference threshold range, the voltage difference is within the voltage difference threshold range, and the power difference is within the power difference threshold range, then it is determined that the state change of the target device is consistent with the preset state change in the task to be controlled; otherwise, it is determined that the state change of the target device is inconsistent with the preset state change in the task to be controlled.

[0035] Furthermore, in S7,

[0036] when the sequence control locking logic of the sequence control instruction is correct, modifying the to-be-sequence-controlled task in the S7 according to the sequence control locking logic of the sequence control instruction;

[0037] when the state change of the target device does not match the preset state change in the to-be-sequence-controlled task, modifying the to-be-sequence-controlled task in the S7 according to the state change.

[0038] On the basis of the above-mentioned remote sequence control checking method based on a transformer substation, the application further provides a remote sequence control checking system based on a transformer substation.

[0039] A remote sequence control checking system based on a transformer substation comprises the following modules,

[0040] A telemetry signal acquisition module is used to acquire a first telemetry signal of a target device in a transformer substation in an initial state.

[0041] A logic judgment module is used to acquire a to-be-sequence-controlled task, analyze the to-be-sequence-controlled task to obtain a sequence control instruction, and judge whether the sequence control locking logic of the sequence control instruction is correct based on a virtual simulation mode.

[0042] A misoperation prevention module is used to receive the sequence control instruction through a one-key sequence control host and generate an operation ticket under the condition that the logic of the sequence control instruction is correct, and intelligently prevent misoperation of the one-key sequence control host based on the operation ticket.

[0043] A one-key sequence control operation module is used to forward the operation ticket to the target device through a data gateway to perform one-key sequence control operation on the target device under the condition that the misoperation prevention verification is passed.

[0044] The telemetry signal acquisition module is further used to acquire a second telemetry signal of the target device.

[0045] A comparison module is used to acquire a state change of the target device by comparing the first telemetry signal and the second telemetry signal.

[0046] A state judgment module is used to judge whether the state change of the target device matches the preset state change in the to-be-sequence-controlled task.

[0047] A modification module is used to modify the to-be-sequence-controlled task under the condition that the logic of the sequence control instruction is incorrect or the state change does not match.

[0048] On the basis of the above-mentioned remote sequence control checking method based on a transformer substation, the application further provides a remote sequence control checking device based on a transformer substation.

[0049] A substation-based remote sequential control checking device, comprising a processor, a memory and a computer program stored in the memory, the computer program being executed by the processor to implement the substation-based remote sequential control checking method as described above.

[0050] The present application has the beneficial effect that in the substation-based remote sequential control checking method, system and device, the correctness of the sequential control locking logic of the sequential control instruction is checked by virtual simulation, and the operation ticket in the one-key sequential control process is checked by actual operation; this virtual and actual combination method performs double checking on the remote sequential control, ensuring the safety of the one-key sequential control of the substation. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 The flowchart of the substation-based remote sequential control checking method of the present application;

[0052] Figure 2 The structural block diagram of the substation-based remote sequential control checking system of the present application. DETAILED DESCRIPTION

[0053] The principles and characteristics of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and not to limit the scope of the present application.

[0054] As shown in Figure 1 A substation-based remote sequential control checking method, comprising the following steps,

[0055] S1, in the initial state, acquiring a first telemetry signal of a target device in a substation;

[0056] S2, acquiring a to-be-sequentially-controlled task, and parsing the to-be-sequentially-controlled task to obtain a sequential control instruction, and judging whether the sequential control locking logic of the sequential control instruction is correct based on virtual simulation, if correct, executing S3, if incorrect, executing S7;

[0057] S3, receiving the sequential control instruction by a one-key sequential control host and generating an operation ticket, and intelligently preventing errors of the one-key sequential control host based on the operation ticket;

[0058] S4, forwarding the operation ticket to the target device through a data gateway machine to perform one-key sequential control operation on the target device;

[0059] S5, acquiring a second telemetry signal of the target device, and obtaining the state change of the target device by comparing the first telemetry signal and the second telemetry signal;

[0060] S6, determine whether the state change of the target device matches the preset state change in the task to be controlled. If the state change matches, the one-click control operation is successful. If the state change does not match, execute S7.

[0061] S7, modify the task to be controlled, and return to execute S2-S6 until the one-click control operation is successful.

[0062] In this invention, the verification of the sequential control interlocking logic of the sequential control command is determined by virtual simulation, while the verification of the operation ticket is performed by sending the operation ticket to the target device and checking it according to the actual corresponding changes of the target device. This is an on-site actual verification. This combined verification method is safe and reliable and avoids loopholes.

[0063] In some embodiments, in S1, the first telemetry signal is an electrical parameter signal measured by the target device when the operation instructions of the operation ticket are not executed;

[0064] In S5, the second telemetry signal is an electrical parameter signal measured by the target device after executing the operation instruction of the operation ticket;

[0065] The electrical parameter signals include current signals, voltage signals, and power signals.

[0066] Before one-button sequential control, the target device is in its initial state, and the initial state signal of the target device at this time is the first telemetry signal. After one-button sequential control of the target device, the target device will respond, for example, by closing or opening a switch after responding to an operation ticket. The state signal of the target device at this time is the second telemetry signal.

[0067] In some embodiments, in step S2, the process of determining whether the sequential control interlocking logic of the sequential control instruction is correct is as follows:

[0068] S21, Build and train the logic simulation model;

[0069] S22, input the sequential control instruction into the logic simulation model, and use the logic simulation model to simulate the sequential control instruction to obtain the simulation result;

[0070] S23, determine whether the simulation result matches the preset sequential control result in the task to be controlled. If they match, determine that the sequential control interlocking logic of the sequential control instruction is correct. If they do not match, determine that the sequential control interlocking logic of the sequential control instruction is incorrect and execute S24.

[0071] S24, by analyzing the mismatched simulation results, the source of the mismatch is determined; wherein, the source includes the logic simulation model and the task to be controlled.

[0072] S25, if the source of the mismatch is the logic simulation model, then return to S21 to retrain the logic simulation model to improve its accuracy, and execute S22-S24; if the source of the mismatch is the task to be controlled, then execute S7.

[0073] This invention analyzes the mismatched simulation results to determine whether the source of the mismatch is the logic simulation model or the task to be controlled. When the source of the mismatch is the logic simulation model, the process returns to step S21 to retrain the logic simulation model and improve its accuracy. This avoids the influence of problems with the logic simulation model itself on the verification results, and allows for repeated training of the logic simulation model to improve its accuracy, thus enabling more reliable virtual simulation.

[0074] In some embodiments, in step S3, the intelligent anti-misoperation host performs intelligent anti-misoperation on the one-click sequential control host based on the operation ticket, and the specific process of intelligent anti-misoperation is as follows:

[0075] The intelligent anti-misoperation host sends a remote unlock command to the one-click sequential control host to obtain the sole operating right of the target device. After the operation instructions on the operation ticket are completed, the intelligent anti-misoperation host sends a remote lock command to the one-click sequential control host to release the sole operating right of the target device.

[0076] The intelligent anti-misoperation mechanism of this invention ensures that the target device has unique operating rights, thereby enabling corresponding control of the target device. This guarantees that the target device will not be controlled by other instructions while being controlled, thus ensuring the correct execution of one-click sequential control operation. It avoids situations where different instructions from different sources control the target device, ensuring the safety of device operation while improving the accuracy of one-click sequential control operation.

[0077] In some embodiments, the process of forwarding the operation ticket to the target device through the data gateway in S4 further includes the following steps.

[0078] Based on the telemetry configuration in the data communication gateway's scheduling link forwarding table file, a corresponding signal is triggered to perform a consistency check on the telemetry forwarding values ​​of the data communication gateway's centralized control link and the scheduling link.

[0079] In the process of one-click sequential control, this invention also performs consistency verification on the telemetry forwarding values ​​of the data communication gateway's centralized control link and the scheduling link, which can further verify the one-click sequential control. When the telemetry forwarding values ​​of the data communication gateway's centralized control link and the scheduling link are inconsistent, it can also indicate that there is a problem with the operation ticket. Therefore, when the consistency verification of the telemetry forwarding values ​​of the data communication gateway's centralized control link and the scheduling link fails, S7 is also executed to modify the task to be sequentially controlled.

[0080] In some embodiments, in step S5, comparing the first telemetry signal and the second telemetry signal to obtain the state change of the target device specifically involves:

[0081] The difference between the current signal in the first telemetry signal and the current signal in the second telemetry signal is calculated to obtain the current difference value.

[0082] The voltage signal in the first telemetry signal and the voltage signal in the second telemetry signal are subtracted to obtain the voltage difference value;

[0083] The power signal in the first telemetry signal and the power signal in the second telemetry signal are subtracted to obtain the power difference value;

[0084] The current difference, the voltage difference, and the power difference characterize the state change. In some embodiments, the preset state changes in the task to be controlled include preset current difference thresholds, preset voltage difference thresholds, and preset power difference thresholds. Therefore, step S6 specifically involves...

[0085] Determine whether the current difference is within the current difference threshold range, determine whether the voltage difference is within the voltage difference threshold range, and determine whether the power difference is within the power difference threshold range;

[0086] If the current difference is within the current difference threshold range, the voltage difference is within the voltage difference threshold range, and the power difference is within the power difference threshold range, then it is determined that the state change of the target device is consistent with the preset state change in the task to be controlled; otherwise, it is determined that the state change of the target device is inconsistent with the preset state change in the task to be controlled.

[0087] This invention characterizes state changes by varying three electrical parameters: current, voltage, and power. If any one of these electrical parameters fails to meet the requirements, the one-button sequential control will fail. Such stringent judgment conditions ensure the safety of the one-button sequential control.

[0088] In some embodiments, during S7

[0089] If the sequential control interlocking logic of the sequential control instruction is correct, then in step S7, the task to be sequentially controlled is modified according to the sequential control interlocking logic of the sequential control instruction.

[0090] When the state change of the target device does not match the preset state change in the task to be controlled, the task to be controlled is modified according to the state change in step S7.

[0091] Based on the above-mentioned remote sequential control verification method based on substations, the present invention also provides a remote sequential control verification system based on substations.

[0092] like Figure 2 As shown, a remote sequential control verification system based on a substation includes the following modules:

[0093] The telemetry signal acquisition module is used to acquire the first telemetry signal of the target equipment in the substation in the initial state.

[0094] The logic judgment module is used to acquire the task to be controlled, parse the task to be controlled to obtain the control instruction, and judge whether the control interlocking logic of the control instruction is correct based on virtual simulation.

[0095] The error prevention module is used to receive the sequential control instruction through the one-click sequential control host and generate an operation ticket under the condition that the logic of the sequential control instruction is correct, and to perform intelligent error prevention on the one-click sequential control host based on the operation ticket.

[0096] The one-click sequential control operation module is used to forward the operation ticket to the target device through the data gateway under the condition that the anti-misoperation verification is passed, so as to perform one-click sequential control operation on the target device;

[0097] The telemetry signal acquisition module is further configured to acquire a second telemetry signal from the target device;

[0098] The comparison module is used to obtain the state change of the target device by comparing the first telemetry signal and the second telemetry signal;

[0099] A status judgment module is used to determine whether the status change of the target device matches the preset status change in the task to be controlled.

[0100] The modification module is used to modify the task to be controlled under the condition that the logic of the control instruction is incorrect or the state change is inconsistent.

[0101] Based on the aforementioned remote sequential control verification method based on substations, the present invention also provides a remote sequential control verification device based on substations.

[0102] A remote sequential control verification device based on a substation includes a processor, a memory, and a computer program stored in the memory. When the computer program is executed by the processor, it implements the remote sequential control verification method based on the substation as described above.

[0103] In the remote sequential control verification method, system and device based on substation of the present invention, the correctness of the sequential control interlocking logic of the sequential control command is verified by virtual simulation, and the operation ticket in the one-click sequential control process is verified by actual operation. This combination of virtual and actual on-site methods performs dual verification of remote sequential control to ensure the safety of one-click sequential control of substation.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A remote sequential control verification method based on substations, characterized in that: Includes the following steps, S1, in the initial state, acquire the first telemetry signal of the target equipment in the substation; S2, obtain the task to be controlled, parse the task to be controlled to obtain the control instruction, and determine whether the control interlocking logic of the control instruction is correct based on virtual simulation. If it is correct, execute S3; if it is incorrect, execute S7. S3, receive the sequential control instruction through the one-click sequential control host and generate an operation ticket, and perform intelligent error prevention on the one-click sequential control host based on the operation ticket; S4, the operation ticket is forwarded to the target device through the data gateway to perform a one-click sequential control operation on the target device; S5, acquire the second telemetry signal of the target device, and obtain the state change of the target device by comparing the first telemetry signal and the second telemetry signal; S6, determine whether the state change of the target device matches the preset state change in the task to be controlled. If the state change matches, the one-click control operation is successful. If the state change does not match, execute S7. S7, modify the task to be controlled, and return to execute S2-S6 until the one-click control operation is successful; In step S5, comparing the first telemetry signal and the second telemetry signal to obtain the state change of the target device specifically involves: The difference between the current signal in the first telemetry signal and the current signal in the second telemetry signal is calculated to obtain the current difference value. The voltage signal in the first telemetry signal and the voltage signal in the second telemetry signal are subtracted to obtain the voltage difference value; The power signal in the first telemetry signal and the power signal in the second telemetry signal are subtracted to obtain the power difference value; The current difference, the voltage difference, and the power difference characterize the state change; The preset state changes in the task to be controlled include preset current difference threshold, preset voltage difference threshold, and preset power difference threshold. Therefore, S6 specifically involves... Determine whether the current difference is within the current difference threshold range, determine whether the voltage difference is within the voltage difference threshold range, and determine whether the power difference is within the power difference threshold range; If the current difference is within the current difference threshold range, the voltage difference is within the voltage difference threshold range, and the power difference is within the power difference threshold range, then it is determined that the state change of the target device is consistent with the preset state change in the task to be controlled; otherwise, it is determined that the state change of the target device is inconsistent with the preset state change in the task to be controlled.

2. The remote sequential control verification method based on substations according to claim 1, characterized in that: In S1, the first telemetry signal is an electrical parameter signal measured by the target device when the operation instructions of the operation ticket are not executed; In S5, the second telemetry signal is an electrical parameter signal measured by the target device after executing the operation instruction of the operation ticket; The electrical parameter signals include current signals, voltage signals, and power signals.

3. The remote sequential control verification method based on substations according to claim 1, characterized in that: In step S2, the process of determining whether the sequential control interlocking logic of the sequential control command is correct is as follows: S21, Build and train the logic simulation model; S22, input the sequential control instruction into the logic simulation model, and use the logic simulation model to simulate the sequential control instruction to obtain the simulation result; S23, determine whether the simulation result matches the preset sequential control result in the task to be controlled. If they match, determine that the sequential control interlocking logic of the sequential control instruction is correct. If they do not match, determine that the sequential control interlocking logic of the sequential control instruction is incorrect and execute S24. S24, by analyzing the mismatched simulation results, the source of the mismatch is determined; wherein, the source includes the logic simulation model and the task to be controlled. S25, if the source of the mismatch is the logic simulation model, then return to S21 to retrain the logic simulation model to improve its accuracy, and execute S22-S24; if the source of the mismatch is the task to be controlled, then execute S7.

4. The remote sequential control verification method based on substations according to claim 1, characterized in that: In step S3, the intelligent anti-misoperation host performs intelligent anti-misoperation on the one-click sequential control host based on the operation ticket, and the specific process of intelligent anti-misoperation is as follows: The intelligent anti-misoperation host sends a remote unlock command to the one-click sequential control host to obtain the sole operating right of the target device. After the operation instructions on the operation ticket are completed, the intelligent anti-misoperation host sends a remote lock command to the one-click sequential control host to release the sole operating right of the target device.

5. The remote sequential control verification method based on substations according to claim 1, characterized in that: In S4, the process of forwarding the operation ticket to the target device through the data gateway also includes the following steps. Based on the telemetry configuration in the data gateway machine's scheduling link forwarding table file, a corresponding signal is triggered to perform a consistency check on the telemetry forwarding values ​​of the data gateway machine's centralized control link and the scheduling link.

6. The remote sequential control verification method based on substations according to claim 1, characterized in that: In the S7, If the sequential control interlocking logic of the sequential control instruction is incorrect, then in step S7, the task to be sequentially controlled is modified according to the sequential control interlocking logic of the sequential control instruction. When the state change of the target device does not match the preset state change in the task to be controlled, the task to be controlled is modified according to the state change in step S7.

7. A remote sequential control verification system based on a substation, characterized in that: Includes the following modules, The telemetry signal acquisition module is used to acquire the first telemetry signal of the target equipment in the substation in the initial state. The logic judgment module is used to acquire the task to be controlled, parse the task to be controlled to obtain the control instruction, and judge whether the control interlocking logic of the control instruction is correct based on virtual simulation. The error prevention module is used to receive the sequential control instruction through the one-click sequential control host and generate an operation ticket under the condition that the logic of the sequential control instruction is correct, and to perform intelligent error prevention on the one-click sequential control host based on the operation ticket. The one-click sequential control operation module is used to forward the operation ticket to the target device through the data gateway under the condition that the anti-misoperation verification is passed, so as to perform one-click sequential control operation on the target device; The telemetry signal acquisition module is further configured to acquire a second telemetry signal from the target device; The comparison module is used to obtain the state change of the target device by comparing the first telemetry signal and the second telemetry signal; A status judgment module is used to determine whether the status change of the target device matches the preset status change in the task to be controlled. The modification module is used to modify the task to be controlled under the condition that the logic of the control instruction is incorrect or the state change is inconsistent; The comparison module obtains the state changes of the target device by comparing the first telemetry signal and the second telemetry signal, specifically: The difference between the current signal in the first telemetry signal and the current signal in the second telemetry signal is calculated to obtain the current difference value. The voltage signal in the first telemetry signal and the voltage signal in the second telemetry signal are subtracted to obtain the voltage difference value; The power signal in the first telemetry signal and the power signal in the second telemetry signal are subtracted to obtain the power difference value; The current difference, the voltage difference, and the power difference characterize the state change; The preset state changes in the task to be controlled include preset current difference thresholds, preset voltage difference thresholds, and preset power difference thresholds. The state judgment module then determines whether the state changes of the target device match the preset state changes in the task to be controlled, specifically: Determine whether the current difference is within the current difference threshold range, determine whether the voltage difference is within the voltage difference threshold range, and determine whether the power difference is within the power difference threshold range; If the current difference is within the current difference threshold range, the voltage difference is within the voltage difference threshold range, and the power difference is within the power difference threshold range, then it is determined that the state change of the target device is consistent with the preset state change in the task to be controlled; otherwise, it is determined that the state change of the target device is inconsistent with the preset state change in the task to be controlled.

8. A remote sequential control verification device based on a substation, characterized in that: It includes a processor, a memory, and a computer program stored in the memory, wherein the computer program, when executed by the processor, implements the remote sequential control verification method based on a substation as described in any one of claims 1 to 6.

Images