A method and apparatus for verifying a circuit breaker control loop

Abstract

The application discloses a kind of knife switch control loop verification method and device, when receiving knife switch control loop verification request, the voltage value corresponding to the monitoring point of each element node in the knife switch control loop is obtained, the difference between voltage value and standard electrical value is calculated, whether the absolute value of difference is less than standard threshold value is judged, the state value of each monitoring point is determined, at least one state value is input into the preset state key-value pair list, the node state of each element node is matched, the target node state is selected from multiple node states, whether target node state is abnormal is judged, if target node state is abnormal, the position of knife switch control loop exception is determined by node state. The technical problem that the reliability of knife switch control loop operation is low is solved by the way of manual troubleshooting in the prior art, which is difficult and has poor timeliness.

Description

Technical Field

[0001] This invention relates to the field of electrical data detection technology, and in particular to a method and apparatus for verifying a disconnector control circuit. Background Technology

[0002] Control circuit failures of disconnect switches are the most frequent and common type of fault encountered during switching operations, and the operational delays caused by disconnect switch failures account for the largest portion of the total operational delays. Disconnect switch failures are divided into mechanical failures and circuit failures, with circuit failures accounting for approximately half. Unlike switches, which have complete control circuit disconnection monitoring circuits, all disconnect switches currently lack monitoring circuits. This means that problems in the control circuit cannot be detected during operation, and can only be discovered at the moment of operation, thus causing operational delays.

[0003] In existing technologies, fault points in the switch control circuit are mainly diagnosed manually.

[0004] However, in the aforementioned existing technologies, relying on manual troubleshooting is difficult and time-consuming. Furthermore, the switch control circuit is quite complex and requires a high level of professional skills from technicians. As a result, it is impossible to troubleshoot faults in the switch control circuit in a timely manner, leading to low reliability of the switch control circuit operation. Summary of the Invention

[0005] This invention provides a method and apparatus for verifying a disconnect switch control circuit, which solves the problem that the existing method of manually checking for faults in the disconnect switch control circuit is difficult, has poor timeliness, and the disconnect switch control circuit is relatively complex, requiring a high level of professional skills from technicians. As a result, it is impossible to detect faults in the disconnect switch control circuit in a timely manner, leading to low reliability of the disconnect switch control circuit operation.

[0006] The first aspect of this invention provides a method for verifying a disconnector control circuit, comprising:

[0007] In response to the verification request of the disconnector control circuit, obtain the voltage value of the monitoring point corresponding to each component node in the disconnector control circuit;

[0008] By comparing the voltage value with the standard electrical value, the status value of each monitoring point is determined;

[0009] Input at least one of the state values ​​into a preset list of state key-value pairs to match the node state of each of the component nodes;

[0010] Select a target node state from the multiple node states, and determine whether the target node state is abnormal;

[0011] If the target node is in an abnormal state, the abnormal location of the disconnector control circuit is determined based on the node state.

[0012] Optionally, the step of comparing the voltage value with a standard electrical value to determine the status value of each monitoring point includes:

[0013] Calculate the first difference between the voltage value and the standard electrical value;

[0014] Determine whether the absolute value of the first difference is less than a standard threshold;

[0015] If the absolute value of the first difference is less than the standard threshold, then the state value of the monitoring point is determined to be 0;

[0016] If the absolute value of the first difference is greater than or equal to the standard threshold, then the state value is determined to be 1.

[0017] Optionally, the step of inputting at least one of the state values ​​into a preset list of state key-value pairs to match the node states of each of the component nodes includes:

[0018] Select at least one of the state values ​​according to the component node to generate a corresponding composite key;

[0019] The composite key is input into a preset list of state key-value pairs to match the node state corresponding to the component node.

[0020] Optionally, the target node state includes control power state and internal interlocking circuit state. The step of selecting the target node state from the plurality of node states and determining whether the target node state is abnormal includes:

[0021] Select the control power supply node state and the internal interlocking circuit node state from the multiple node states;

[0022] Determine whether the control power supply status is abnormal;

[0023] If the control power supply status is abnormal, then the target node status is determined to be abnormal.

[0024] If the control power supply status is normal, then determine whether the internal interlocking circuit status is abnormal;

[0025] If the internal interlocking loop is in an abnormal state, then the target node is determined to be in an abnormal state.

[0026] If the internal interlocking loop is in normal condition, then the target node is determined to be in normal condition.

[0027] Optionally, the step of determining the abnormal location of the disconnector control circuit based on the node status if the target node status is abnormal includes:

[0028] If the target node is in an abnormal state, then select and retrieve the abnormal node state from among the node states.

[0029] Determine whether the abnormal node status includes the control power status;

[0030] If the abnormal node status includes the control power status, then the abnormal location is determined to be at the control power.

[0031] If the abnormal node status does not include the control power status, determine whether the number of abnormal node statuses is less than the quantity threshold.

[0032] If the number of values ​​is less than the quantity threshold, then the abnormal location is determined to be the component node to which the abnormal node state belongs;

[0033] If the value is greater than or equal to the data threshold, the abnormal location is determined to be a control loop.

[0034] A second aspect of the present invention provides a device for verifying a switch control circuit, comprising:

[0035] The data acquisition module is used to respond to the verification request of the disconnect switch control circuit and acquire the voltage value corresponding to the monitoring point of each component node in the disconnect switch control circuit.

[0036] The comparison module is used to compare the voltage value with the standard electrical value to determine the status value of each monitoring point;

[0037] The matching module is used to input at least one of the state values ​​into a preset list of state key-value pairs to match the node states of each of the component nodes;

[0038] The judgment module is used to select a target node state from multiple node states and determine whether the target node state is abnormal.

[0039] The data analysis module is used to determine the abnormal location of the disconnector control circuit based on the abnormal state of the target node.

[0040] Optionally, the comparison module includes:

[0041] The first difference calculation submodule is used to calculate the first difference between the voltage value and the standard electrical value;

[0042] The first difference judgment submodule is used to determine whether the absolute value of the first difference is less than the standard threshold.

[0043] If the absolute value of the first difference is less than the standard threshold, then the state value of the monitoring point is determined to be 0;

[0044] If the absolute value of the first difference is greater than or equal to the standard threshold, then the state value is determined to be 1.

[0045] Optionally, the matching module includes:

[0046] The composite key generation submodule is used to select at least one of the state values ​​according to the component node and generate the corresponding composite key;

[0047] The node state matching submodule is used to input the composite key into a preset list of state key-value pairs and match the node state corresponding to the element node.

[0048] Optionally, the determination module includes:

[0049] The node state selection submodule is used to select the control power supply node state and the internal interlocking circuit node state from multiple node states.

[0050] The loop status analysis submodule is used to determine whether the control power supply status is abnormal;

[0051] If the control power supply status is abnormal, then the target node status is determined to be abnormal.

[0052] If the control power supply status is normal, then determine whether the internal interlocking circuit status is abnormal;

[0053] If the internal interlocking loop is in an abnormal state, then the target node is determined to be in an abnormal state.

[0054] If the internal interlocking loop is in normal condition, then the target node is determined to be in normal condition.

[0055] Optionally, the data analysis module includes:

[0056] The abnormal node selection submodule is used to select and extract the abnormal node state from each of the node states if the target node state is abnormal.

[0057] The node status analysis submodule is used to determine whether the abnormal node status includes the control power status.

[0058] If the abnormal node status includes the control power status, then the abnormal location is determined to be at the control power.

[0059] If the abnormal node status does not include the control power status, determine whether the number of abnormal node statuses is less than the quantity threshold.

[0060] If the number of values ​​is less than the quantity threshold, then the abnormal location is determined to be the component node to which the abnormal node state belongs;

[0061] If the value is greater than or equal to the data threshold, the abnormal location is determined to be a control loop.

[0062] As can be seen from the above technical solutions, the present invention has the following advantages:

[0063] When a request for verification of the disconnector control circuit is received from the staff, the voltage value corresponding to the monitoring point of each component or component node in the disconnector control circuit is obtained. The first difference between the voltage value and the standard electrical value is calculated. It is determined whether the absolute value of the first difference is greater than 10V. The status value of each monitoring point is determined. At least one status value is selected according to the component node, and a corresponding composite key is generated. The composite key is input into a preset status key-value pair list to obtain the corresponding key value. The corresponding node status is matched according to the key value. The target node status is selected from multiple node statuses. It is determined whether the target node status is abnormal. If the target node status is abnormal, the abnormal node status is selected from the node statuses. It is determined whether the abnormal node status includes the control power status. If the abnormal node status includes the control power status, the abnormal location is determined to be at the control power. If the abnormal node status does not include the control power status, it is determined whether the number of abnormal node statuses is less than 2. If so, the abnormal location is determined to be the component node or component to which the abnormal node status belongs. If the number of abnormal node statuses is greater than or equal to 2, the abnormal location is determined to be the control circuit. This invention solves the technical problem that existing technologies rely on manual troubleshooting, which is difficult and time-consuming, resulting in low reliability of the disconnector control circuit. It monitors the disconnector control circuit in real time based on the voltage values ​​collected from monitoring points, which can eliminate external causes for disconnector control circuit anomalies, accurately locate the fault range, reduce the difficulty of troubleshooting, and improve the efficiency of fault finding. Attached Figure Description

[0064] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0065] Figure 1 This is a flowchart of the steps of a knife switch control circuit verification method provided in Embodiment 1 of the present invention;

[0066] Figure 2 This is a flowchart of the steps of a knife switch control circuit verification method provided in Embodiment 2 of the present invention;

[0067] Figure 3 This is a circuit diagram of the disconnector control circuit provided in Embodiment 2 of the present invention;

[0068] Figure 4This is a structural block diagram of a switch control circuit verification device provided in Embodiment 3 of the present invention. Detailed Implementation

[0069] This invention provides a solution to a technical problem.

[0070] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0071] Please see Figure 1 , Figure 1 The flowchart illustrates the steps of a disconnector control circuit verification method provided in Embodiment 1 of the present invention.

[0072] The present invention provides a method for verifying a disconnector control circuit, comprising the following steps:

[0073] Step 101: Respond to the disconnect switch control circuit verification request and obtain the voltage value corresponding to the monitoring point of each component node in the disconnect switch control circuit.

[0074] A disconnector control circuit verification request refers to a verification request issued by technicians for online detection of circuit status and dynamic detection of disconnector operation.

[0075] Monitoring points refer to the nodes that collect voltage on the switch control circuit. They are divided into five categories: the first category is power supply monitoring points, including motor power supply and operating power supply; the second category is external interlocking circuit monitoring points, including external interlocking circuits; the third category is internal interlocking monitoring points, including auxiliary contacts of the opening contactor (KM2-1), auxiliary contacts of the closing contactor (KM1-1), opening limit switch (SL1-1), closing limit switch (SL2-1), manual interlocking auxiliary contacts (SL3-2), auxiliary contacts of the motor integrated protection relay (GDH-2), and auxiliary contacts of the emergency stop button (SB2-2); the fourth category is remote command control monitoring points, including remote control closing contacts (10) and remote control opening contacts (11); and the fifth category is operation process monitoring points, which are self-holding contacts of the opening and closing circuits, including auxiliary contacts of the opening contactor (KM2-14) and auxiliary contacts of the closing contactor (KM1-14).

[0076] In this embodiment of the invention, when a request for verification of the disconnector control circuit is received from a technician, the voltage value corresponding to the voltage acquisition node on the disconnector control circuit is obtained.

[0077] Step 102: Compare the voltage value with the standard electrical value to determine the status value of each monitoring point.

[0078] The standard electrical value refers to the control power supply voltage of the substation disconnector control circuit, which is generally 220V.

[0079] In this embodiment of the invention, when the voltage value corresponding to the monitoring point in the switch control circuit is obtained, the absolute value of the difference between the voltage value and the standard electrical value is calculated, and the status value of each monitoring point is determined by judging whether the absolute value of the difference is greater than the error threshold.

[0080] Step 103: Input at least one state value into a preset state key-value pair list to match the node state of each component node.

[0081] The preset list of state key-value pairs refers to the node state that can be output upon receiving specific feature data.

[0082] Node status refers to the status value of each node in the disconnector control circuit, which can be divided into remote tripping command, remote closing command, tripping contactor working status, closing contactor working status, motor power supply status, control power supply status, external interlocking circuit status, contactor contact status, circuit breaker limit switch status, manual interlocking status, motor protection status, emergency stop button status, and internal interlocking circuit status.

[0083] In this embodiment of the invention, after determining the status value of each monitoring point, at least one status value is input into a preset status key-value pair list to match the node status value of each component node.

[0084] Step 104: Select the target node state from multiple node states and determine whether the target node state is abnormal.

[0085] The target node state refers to the node state value associated with determining the state of the disconnector control circuit.

[0086] In this embodiment of the invention, after matching the node status values ​​of each component node, the node status value associated with the switch control circuit status is selected from each node status as the target node status value, and it is determined whether the target node status value is abnormal.

[0087] Step 105: If the target node status is abnormal, determine the abnormal location of the disconnector control circuit based on the node status.

[0088] In this embodiment of the invention, when the target node is in an abnormal state, the location of the abnormal switch control circuit is determined based on the state of each node.

[0089] In this embodiment of the invention, when a technician sends a request to verify the disconnector control circuit, the voltage values ​​corresponding to the monitoring points of each component or component node within the disconnector control circuit are obtained. The difference between the voltage value and the standard electrical value is calculated, the absolute value of the difference is calculated, and it is determined whether the absolute value is greater than the error threshold. The status value of each monitoring point is determined, and at least one status value is input into a preset status key-value pair list. The node status values ​​of each component node are matched, and then the node status values ​​associated with the disconnector control circuit status are selected from the node statuses as target node status values. It is determined whether the target node status value is abnormal. If the target node status is abnormal, the location of the disconnector control circuit abnormality is determined based on the status of each node. This solves the technical problem of low reliability of disconnector control circuit operation due to the high difficulty and poor timeliness of manual inspection in the prior art. It can monitor the remote control contacts of the disconnector control circuit in real time to ensure effective operation, eliminate external causes for disconnector control circuit abnormalities, accurately locate the fault range, reduce the difficulty of inspection, and improve the efficiency of fault finding.

[0090] Please see Figure 2 , Figure 2 This is a flowchart illustrating the steps of a disconnector control circuit verification method provided in Embodiment 2 of the present invention.

[0091] This invention provides a method for verifying a disconnector control circuit, comprising:

[0092] Step 201: Respond to the disconnector control circuit verification request and obtain the voltage value corresponding to the monitoring point of each component node in the disconnector control circuit.

[0093] In this embodiment of the invention, the operator issues a switch control circuit verification request in order to detect the circuit status online and dynamically detect the switch operation process, and obtains the voltage value corresponding to each component node or the monitoring point to which the component belongs in the current switch control circuit.

[0094] Step 202: Compare the voltage value with the standard electrical value to determine the status value of each monitoring point.

[0095] Further, step 202 includes the following sub-steps:

[0096] S11. Calculate the first difference between the voltage value and the standard electrical value;

[0097] In this embodiment of the invention, after obtaining the voltage value corresponding to the monitoring point, the first difference between the voltage value and the standard electrical value is calculated.

[0098] S12. Determine whether the absolute value of the first difference is less than the standard threshold.

[0099] The standard threshold refers to the range within which the voltage value differs from the standard electrical value during normal operation. For example, a difference of ±10V.

[0100] In this embodiment of the invention, the absolute value of the calculated first difference is taken, and then it is determined whether the absolute value is less than 10V.

[0101] S13. If the absolute value of the first difference is less than the standard threshold, the state value of the monitoring point is set to 0.

[0102] In this embodiment of the invention, when the absolute value of the first difference is less than 10V, it indicates that the state of the monitoring point is normal, and the state value of the monitoring point is assigned to 0.

[0103] S14. If the absolute value of the first difference is greater than or equal to the standard threshold, then the state value is determined to be 1.

[0104] In this embodiment of the invention, when the absolute value of the first difference is less than 10V, it indicates that the state of the monitoring point is abnormal, and the state value of the monitoring point is assigned to 1.

[0105] In this embodiment of the invention, after obtaining the voltage value corresponding to the monitoring point, the first difference between the voltage value and 220V is calculated, and then it is determined whether the absolute value of the first difference is less than 10V. If the absolute value of the first difference is less than 10V, it indicates that the state of the monitoring point is normal, and the state value corresponding to the monitoring point is assigned to 0. If the absolute value of the first difference is greater than or equal to 10V, it indicates that the state of the monitoring point is abnormal, and the state value corresponding to the monitoring point is assigned to 1.

[0106] It should be noted that the substation disconnector control circuit uses AC 220V power. When the control circuit is operational, the measured voltage at each monitoring point (for the L or N terminal) should be AC ​​220V (standard electrical value), with an error not exceeding 10V. If any node in the control circuit experiences a disconnection, the measured voltage at the corresponding monitoring point will be abnormal. This abnormality typically manifests as significant voltage fluctuations between 0 and 220V. Therefore, by analyzing three consecutive voltage measurements at each monitoring point and comparing them with the standard electrical value, the status of each monitoring point can be determined as normal or abnormal.

[0107] Step 203: Select at least one state value according to the component node and generate the corresponding composite key.

[0108] Please see Figure 3 , Figure 3The circuit diagram for the switch control circuit is as follows: motor power supply is determined as monitoring point 1, control voltage is determined as monitoring point 2, external interlocking circuit (16) is determined as monitoring point 3, opening contactor auxiliary contact (KM2-1) is determined as monitoring point 4, closing contactor auxiliary contact (KM1-1) is determined as monitoring point 5, opening limit switch (SL1-1) is determined as monitoring point 6, closing limit switch (SL2-1) is determined as monitoring point 7, manual interlock auxiliary contact (SL3-2) is determined as monitoring point 8, motor integrated protection relay auxiliary contact (GDH-2) is determined as monitoring point 9, emergency stop button auxiliary contact (SB2-2) is determined as monitoring point 10, remote control opening contact (11) is determined as monitoring point 11, remote control closing contact (10) is determined as monitoring point 12, opening contactor auxiliary contact (KM2-14) is determined as monitoring point 13, closing contactor auxiliary contact (KM1-14) is determined as monitoring point 14.

[0109] A composite key refers to a key composed of event feature data input to a preset list of state key-value pairs. The event feature data includes a key composed of the state values ​​of the search points corresponding to the abnormal positions of the switch control circuit, which is used to construct composite filtering conditions.

[0110] In this embodiment of the invention, after determining the state value of each monitoring point, at least one state value is selected according to the component node to generate a corresponding composite key. For example, monitoring point 4 and monitoring point 5 are used as composite key inputs.

[0111] Step 204: Input the composite key into the preset state key-value pair list and match the node state corresponding to the component node.

[0112] In this embodiment of the invention, a composite key is input into a preset list of state key-value pairs to obtain the corresponding key value, and the corresponding node state is matched according to the key value.

[0113] It should be noted that in the preset status key-value pair list, when the status value of monitoring point 11 is 0, the remote tripping command is restored; when the status value of monitoring point 11 is 1, the remote tripping command is activated. When the status value of monitoring point 12 is 0, the remote closing command is restored; when the status value of monitoring point 12 is 1, the remote closing command is restored. When the status value of monitoring point 13 is 0, the tripping contactor's operating status is restored; when the status value of monitoring point 13 is 1, the tripping contactor's operating status is activated. When the status value of monitoring point 14 is 0, the closing contactor resumes operation; when the status value of monitoring point 14 is 1, the closing contactor activates. When the status value of monitoring point 1 is 0, the output motor power supply is normal; when the status value of monitoring point 1 is 1, the output motor power supply is abnormal. When the status value of monitoring point 2 is 0, the output control power supply is normal; when the status value of monitoring point 2 is 1, the output control power supply is abnormal. When the status value of monitoring point 3 is 0, the external interlocking circuit is in place; when the status value of monitoring point 3 is 0... When the state value of monitoring point 4 or 5 is 1, the external interlocking circuit is not in operation. When the state value of monitoring point 4 or 5 is 0, the output contactor contact is normal. When the state values ​​of both monitoring point 4 and 5 are 1, the output contactor contact is abnormal. When the state value of monitoring point 6 or 7 is 0, the output circuit breaker limit switch is normal. When the state values ​​of both monitoring point 6 and 7 are 1, the output circuit breaker limit switch is abnormal. When the state value of monitoring point 8 is 0, the output manual interlocking is normal. When the status value is 1, the manual interlock status is abnormal. When the status value of monitoring point 9 is 0, the motor protection status is normal. When the status value of monitoring point 9 is 1, the motor protection status is abnormal. When the status value of monitoring point 10 is 0, the emergency stop button status is normal. When the status value of monitoring point 10 is 1, the emergency stop button status is abnormal. When the status values ​​of monitoring points 3-9 are all 0, the internal interlocking circuit status is normal. When any of the status values ​​of monitoring points 3-9 is 1, the internal interlocking circuit status is abnormal.

[0114] Step 205: Select the target node state from multiple node states and determine whether the target node state is abnormal.

[0115] Furthermore, step 205 includes the following sub-steps:

[0116] S21. Select the control power supply node state and the internal interlocking circuit node state from multiple node states.

[0117] In this embodiment of the invention, after matching the corresponding node state, the control power supply node state and the internal interlocking circuit node state are selected from multiple node states.

[0118] S22. Determine whether the control power supply status is abnormal.

[0119] In this embodiment of the invention, after selecting the state of the control power node, the current control power supply is determined to be abnormal by assigning a value to the state of the control power node.

[0120] S23. If the control power supply status is abnormal, then the target node status is determined to be abnormal.

[0121] In this embodiment of the invention, if the control power supply status is determined to be abnormal, then the target node status is determined to be abnormal.

[0122] S24. If the control power supply status is normal, determine whether the internal interlocking circuit status is abnormal.

[0123] In this embodiment of the invention, if the power supply status of the acquisition and control system is determined to be normal, then it is determined whether the internal interlocking circuit status is abnormal.

[0124] S25. If the internal interlocking circuit is in an abnormal state, the target node is determined to be in an abnormal state.

[0125] S26. If the internal interlocking circuit is in normal condition, then the target node is determined to be in normal condition.

[0126] In this embodiment of the invention, if the state of the internal interlocking loop node is abnormal, the state of the target node is determined to be abnormal; if the state of the internal interlocking loop node is normal, the state of the target node is determined to be normal.

[0127] Step 206: If the target node status is abnormal, determine the abnormal location of the disconnector control circuit based on the node status.

[0128] Furthermore, step 206 includes the following sub-steps:

[0129] S31. If the target node is in an abnormal state, then select and retrieve the abnormal node state from the various node states.

[0130] In this embodiment of the invention, when the target node status is determined to be abnormal, the abnormal node status is selected from each node status to analyze the switch control circuit.

[0131] S32. Determine whether the abnormal node status includes the control power status.

[0132] In this embodiment of the invention, it is determined whether there is a control power supply state among the selected abnormal node states.

[0133] It should be noted that when the control power supply is abnormal, it will also affect the voltage values ​​measured by other component nodes or monitoring points within the components. Therefore, when the control power supply is abnormal, the abnormal location of the switch control circuit is determined to be the abnormality at the control power supply.

[0134] S33. If the abnormal node status includes the control power status, then the abnormal location is determined to be at the control power location.

[0135] In this embodiment of the invention, when the abnormal node state includes the control power state, the abnormal location is determined to be at the control power source.

[0136] S34. If the abnormal node status does not include the control power status, determine whether the number of abnormal node statuses is less than the quantity threshold.

[0137] The quantity threshold refers to the fact that when the switch control circuit is abnormal, if it is not an abnormal internal interlocking state or an abnormal external interlocking circuit state, the number of abnormal nodes is 1.

[0138] In this embodiment of the invention, when the abnormal node status does not include the control power status, it is determined whether the number of abnormal node statuses is less than 2.

[0139] S35. If the number of values ​​is less than the quantity threshold, the abnormal position is determined to be the component node to which the abnormal node state belongs.

[0140] In this embodiment of the invention, if the value is less than 2, the abnormal position is determined to be the element node to which the abnormal node state belongs.

[0141] S36. If a value is greater than or equal to the data threshold, the abnormal location is determined to be a control loop.

[0142] In this embodiment of the invention, if the value is greater than or equal to 2, the abnormal location is determined as a control loop.

[0143] In this embodiment of the invention, when a request for verification of the disconnector control circuit is received from a staff member, the voltage value corresponding to the monitoring point to which each component or component node belongs in the disconnector control circuit is obtained. The first difference between the voltage value and the standard electrical value is calculated. It is determined whether the absolute value of the first difference is greater than 10V. The status value of each monitoring point is determined. At least one status value is selected according to the component node, and a corresponding composite key is generated. The corresponding key value is obtained by inputting the composite key into a preset status key-value pair list. The corresponding node status is matched according to the key value. The target node status is selected from multiple node statuses. It is determined whether the target node status is abnormal. If the target node status is abnormal, the abnormal node status is selected from the node statuses. It is determined whether the abnormal node status includes the control power status. If the abnormal node status includes the control power status, the abnormal location is determined to be the control power location. If the abnormal node status does not include the control power status, it is determined whether the number of abnormal node statuses is less than 2. The abnormal location is determined to be the component node or component to which the abnormal node status belongs. If the number of abnormal node statuses is greater than or equal to 2, the abnormal location is determined to be the control circuit. This invention solves the technical problem that existing technologies rely on manual troubleshooting, which is difficult and time-consuming, resulting in low reliability of the disconnector control circuit. It monitors the disconnector control circuit in real time based on the voltage values ​​collected from monitoring points, which can eliminate external causes for disconnector control circuit anomalies, accurately locate the fault range, reduce the difficulty of troubleshooting, and improve the efficiency of fault finding.

[0144] Please see Figure 4 , Figure 4 This is a structural block diagram of a switch control circuit verification device provided in Embodiment 3 of the present invention.

[0145] This invention provides a device for verifying a disconnector control circuit, the device comprising:

[0146] The data acquisition module 401 is used to respond to the verification request of the disconnect switch control circuit and acquire the voltage value corresponding to the monitoring point of each component node in the disconnect switch control circuit.

[0147] The comparison module 402 is used to compare the voltage value with the standard electrical value to determine the status value of each monitoring point;

[0148] The matching module 403 is used to input at least one state value into a preset state key-value pair list to match the node state of each component node;

[0149] The judgment module 404 is used to select the target node state from multiple node states and determine whether the target node state is abnormal.

[0150] The data analysis module 405 is used to determine the abnormal location of the disconnector control circuit based on the node status if the target node status is abnormal.

[0151] Furthermore, the comparison module 402 includes:

[0152] The first difference calculation submodule is used to calculate the first difference between the voltage value and the standard electrical value;

[0153] The first difference judgment submodule is used to determine whether the absolute value of the first difference is less than the standard threshold.

[0154] If the absolute value of the first difference is less than the standard threshold, the state value of the monitoring point is set to 0.

[0155] If the absolute value of the first difference is greater than or equal to the standard threshold, then the state value is set to 1.

[0156] Furthermore, the matching module includes:

[0157] The composite key generation submodule is used to select at least one state value according to the component node and generate the corresponding composite key.

[0158] The node state matching submodule is used to input the composite key into a preset list of state key-value pairs and match the node state corresponding to the component node.

[0159] Furthermore, the judgment module 404 includes:

[0160] The node state selection submodule is used to select the control power node state and the internal interlocking circuit node state from multiple node states.

[0161] The loop status analysis submodule is used to determine whether the control power supply status is abnormal;

[0162] If the control power supply status is abnormal, the target node status is determined to be abnormal.

[0163] If the control power supply status is normal, then determine whether the internal interlocking circuit status is abnormal.

[0164] If the internal interlocking loop is in an abnormal state, the target node is determined to be in an abnormal state.

[0165] If the internal interlocking circuit is in normal condition, then the target node is considered to be in normal condition.

[0166] Furthermore, the data analysis module 405 includes:

[0167] The abnormal node selection submodule is used to select and extract the abnormal node status from each node status if the target node status is abnormal.

[0168] The node status analysis submodule is used to determine whether the abnormal node status includes the control power status.

[0169] If the abnormal node status includes the control power status, then the abnormal location is determined to be at the control power location.

[0170] If the abnormal node status does not include the control power status, determine whether the number of abnormal node statuses is less than the quantity threshold.

[0171] If the number is less than the quantity threshold, the abnormal location is determined to be the component node to which the abnormal node state belongs;

[0172] If a value is greater than or equal to the data threshold, the abnormal location is determined to be a control loop.

[0173] In this embodiment of the invention, when the data acquisition module receives a verification request for the disconnector control circuit, it acquires the voltage values ​​corresponding to the monitoring points of each component node within the disconnector control circuit. The comparison module calculates the difference between the voltage values ​​and the standard electrical values. By determining whether the absolute value of the difference is less than a standard threshold, the status value of each monitoring point is determined. Then, the matching module inputs at least one status value into a preset status key-value pair list to match the node status of each component node. The judgment module selects the target node status from multiple node statuses and determines whether the target node status is abnormal. If the target node status is abnormal, the data analysis module determines the abnormal location of the disconnector control circuit based on the node status. This solves the technical problem of existing technologies relying on manual troubleshooting, which is difficult, inefficient, and leads to low reliability of the disconnector control circuit. Real-time monitoring of the disconnector control circuit based on the voltage values ​​collected from the monitoring points can eliminate external causes for disconnector control circuit anomalies, accurately locate the fault range, reduce troubleshooting difficulty, and improve fault finding efficiency.

[0174] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process of the above-described apparatus and unit can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0175] In the embodiments provided in this application, it should be understood that the apparatus and method can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another apparatus, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0176] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0177] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for verifying a disconnector control circuit, characterized in that, include: In response to the verification request of the disconnector control circuit, obtain the voltage value of the monitoring point corresponding to each component node in the disconnector control circuit; By comparing the voltage value with the standard electrical value, the status value of each monitoring point is determined; Input at least one of the state values ​​into a preset list of state key-value pairs to match the node state of each of the component nodes; Select a target node state from the multiple node states, and determine whether the target node state is abnormal; If the target node is in an abnormal state, the abnormal location of the disconnector control circuit is determined based on the node state. The target node state includes the control power state and the internal interlocking circuit state. The step of selecting the target node state from the multiple node states and determining whether the target node state is abnormal includes: Select the control power supply state and the internal interlocking circuit state from the multiple node states; Determine whether the control power supply status is abnormal; If the control power supply status is abnormal, then the target node status is determined to be abnormal. If the control power supply status is normal, then determine whether the internal interlocking circuit status is abnormal; If the internal interlocking loop is in an abnormal state, then the target node is determined to be in an abnormal state. If the internal interlocking loop is in normal condition, then the target node is determined to be in normal condition. The step of determining the abnormal location of the disconnector control circuit based on the node status if the target node status is abnormal includes: If the target node is in an abnormal state, then select and retrieve the abnormal node state from among the node states. Determine whether the abnormal node status includes the control power status; If the abnormal node status includes the control power status, then the abnormal location is determined to be at the control power. If the abnormal node status does not include the control power status, determine whether the number of abnormal node statuses is less than the quantity threshold. If the number of values ​​is less than the quantity threshold, then the abnormal location is determined to be the component node to which the abnormal node state belongs; If the value is greater than or equal to the quantity threshold, the abnormal location is determined to be a control loop.

2. The method for verifying the switch control circuit according to claim 1, characterized in that, The step of comparing the voltage value with the standard electrical value to determine the status value of each monitoring point includes: Calculate the first difference between the voltage value and the standard electrical value; Determine whether the absolute value of the first difference is less than a standard threshold; If the absolute value of the first difference is less than the standard threshold, then the state value of the monitoring point is determined to be 0; If the absolute value of the first difference is greater than or equal to the standard threshold, then the state value is determined to be 1.

3. The method for verifying the switch control circuit according to claim 1, characterized in that, The step of inputting at least one of the state values ​​into a preset list of state key-value pairs and matching the node states of each of the component nodes includes: Select at least one of the state values ​​according to the component node to generate a corresponding composite key; The composite key is input into a preset list of state key-value pairs to match the node state corresponding to the component node.

4. A device for verifying a switch control circuit, characterized in that, include: The data acquisition module is used to respond to the verification request of the disconnect switch control circuit and acquire the voltage value corresponding to the monitoring point of each component node in the disconnect switch control circuit. The comparison module is used to compare the voltage value with the standard electrical value to determine the status value of each monitoring point; The matching module is used to input at least one of the state values ​​into a preset list of state key-value pairs to match the node states of each of the component nodes; The judgment module is used to select a target node state from multiple node states and determine whether the target node state is abnormal. The data analysis module is used to determine the abnormal location of the disconnector control circuit based on the node status if the target node status is abnormal. The target node state includes the control power state and the internal interlocking circuit state. The judgment module includes: The node state selection submodule is used to select the control power supply state and the internal interlocking circuit state from multiple node states. The loop status analysis submodule is used to determine whether the control power supply status is abnormal; If the control power supply status is abnormal, then the target node status is determined to be abnormal. If the control power supply status is normal, then determine whether the internal interlocking circuit status is abnormal; If the internal interlocking loop is in an abnormal state, then the target node is determined to be in an abnormal state. If the internal interlocking loop is in normal condition, then the target node is determined to be in normal condition. The data analysis module includes: The abnormal node selection submodule is used to select and extract the abnormal node state from each of the node states if the target node state is abnormal. The node status analysis submodule is used to determine whether the abnormal node status includes the control power status. If the abnormal node status includes the control power status, then the abnormal location is determined to be at the control power. If the abnormal node status does not include the control power status, determine whether the number of abnormal node statuses is less than the quantity threshold. If the number of values ​​is less than the quantity threshold, then the abnormal location is determined to be the component node to which the abnormal node state belongs; If the value is greater than or equal to the quantity threshold, the abnormal location is determined to be a control loop.

5. The disconnector control circuit verification device according to claim 4, characterized in that, The comparison module includes: The first difference calculation submodule is used to calculate the first difference between the voltage value and the standard electrical value; The first difference judgment submodule is used to determine whether the absolute value of the first difference is less than the standard threshold. If the absolute value of the first difference is less than the standard threshold, then the state value of the monitoring point is determined to be 0; If the absolute value of the first difference is greater than or equal to the standard threshold, then the state value is determined to be 1.

6. The disconnector control circuit verification device according to claim 4, characterized in that, The matching module includes: The composite key generation submodule is used to select at least one of the state values ​​according to the component node and generate the corresponding composite key; The node state matching submodule is used to input the composite key into a preset list of state key-value pairs and match the node state corresponding to the element node.

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