Methods, apparatus, electronic devices and storage media for determining GIS interval status

Abstract

This disclosure relates to a method, apparatus, electronic device, and storage medium for determining the status of a GIS (Gas Insulation System) bay, and pertains to the field of electrical technology. The disclosure first acquires the power signal of the drive motor of the GIS bay and the auxiliary contact position signal of each disconnecting switch. Then, based on the power signal and the auxiliary contact position signal, the status of the GIS bay is determined. This allows for accurate determination of the GIS bay status, avoiding electrical equipment safety risks caused by inaccurate GIS bay status determination and ensuring the safe operation of electrical equipment.

Description

Technical Field

[0001] This disclosure relates to the field of electrical technology, and in particular to a method, apparatus, electronic device, and storage medium for determining the status of GIS intervals. Background Technology

[0002] A GIS bay (also known as a GIS switchyard) is a gas-insulated high-voltage device widely used in power systems. It includes a circuit breaker and at least one disconnecting switch. Because the disconnecting switch is an integrated structure, it is housed in a sealed metal structure filled with SF6 gas, and the contact status of the disconnecting switch cannot be directly observed from the outside.

[0003] In related technologies, the status of disconnecting switches in GIS bays is usually determined by observing the indication position of auxiliary position contacts synchronized with the disconnecting switch lever (also known as ON-OFF indicator, switch indication). When an abnormality occurs inside the disconnecting switch (such as the internal structure of the disconnecting switch becoming loose), the status of the disconnecting switch cannot be accurately determined by the indication position of the auxiliary contacts, affecting the safe operation of electrical equipment. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides a method, apparatus, electronic device and storage medium for determining the interval status of GIS.

[0005] According to a first aspect of the present disclosure, a method for determining the interval status of a GIS is provided, the method comprising:

[0006] The power signal of the drive motor of the GIS interval and the auxiliary contact position signal of each disconnecting switch are obtained. The auxiliary contact position signal is used to characterize the current switching position of the disconnecting switch.

[0007] The state of the GIS interval is determined based on the power signal and the auxiliary contact position signal.

[0008] Optionally, the power signal includes multiple power values ​​corresponding to a first time period, which is the time period during which the power value changes from an initial value and then returns to the initial value. The auxiliary contact position signal includes a disconnector switch closed position signal and a disconnector switch open position signal. Each auxiliary contact position signal includes a first time point corresponding to the change in the disconnector switch closed position signal and a second time point corresponding to the change in the disconnector switch open position signal. Determining the state of the GIS bay based on the power signal and the auxiliary contact position signal includes:

[0009] If the first time period does not include any of the first time points and does not include any of the second time points, then the auxiliary location node of the GIS interval is determined to be in a first fault state; or,

[0010] When the first time period includes the first time point and / or the second time point, the target disconnecting switch is determined according to the first target time point and / or the second target time point included in the first time period. The target disconnecting switch is the disconnecting switch in the GIS bay where the disconnecting switch is closed or the disconnecting switch is opened. The state of the target disconnecting switch in the GIS bay is determined according to the power signal and the auxiliary contact position signal.

[0011] Optionally, determining the state of the target disconnect switch in the GIS interval based on the power signal and the auxiliary contact position signal includes:

[0012] If the first time period includes either the first time point or the second time point, it is determined that the auxiliary position contact of the target disconnector in the GIS interval is in a second fault state.

[0013] Optionally, determining the state of the target disconnect switch in the GIS interval based on the power signal and the auxiliary contact position signal includes:

[0014] When the first time period includes the first time point and the second time point, the action type of the target disconnecting switch is determined according to the first time point and the second time point. The state of the target disconnecting switch in the GIS bay is determined according to the power signal, the first time period, the action type and the preset reference power signal. The action type includes disconnecting switch closing action or disconnecting switch opening action.

[0015] Optionally, determining the state of the target disconnect switch in the GIS interval based on the power signal, the first time period, the action type, and the preset reference power signal includes:

[0016] According to the action type, a corresponding target reference power signal is determined from the preset reference power signal. The target reference power signal includes multiple target reference power values ​​corresponding to a second time period. The second time period is the time period during which the target reference power value changes from the initial value and then changes back to the initial value.

[0017] If the deviation between the duration of the first time period and the duration of the second time period is greater than a preset duration deviation threshold, the target isolating switch in the GIS interval is determined to be in a third fault state.

[0018] Optionally, the method further includes:

[0019] If the difference between the duration of the first time period and the duration of the second time period is less than or equal to the preset duration deviation threshold, a preset number of power sample points are obtained from the power signal, and each power sample point includes the sample time and the corresponding sample power within the first time period.

[0020] For each power sample point, a corresponding target reference power sample point is obtained from the target reference power signal. Each target reference power sample point includes a target reference sample time and a corresponding target reference sample power. The first time deviation of the sample time of each power sample point relative to the first start time of the first time period is the same as the second time deviation of the target reference sample time of the corresponding target reference power sample point relative to the second start time of the second time period.

[0021] If the power deviation between the sample power of any power sample point and the target reference sample power of the corresponding target reference power sample point is greater than or equal to a preset power deviation threshold, the target disconnect switch in the GIS interval is determined to be in the fourth fault state.

[0022] Optionally, the method further includes:

[0023] If the difference between the duration of the first time period and the duration of the second time period is less than or equal to the preset duration deviation threshold, and the power deviation between the sample power of the power sample point and the target reference sample power of the corresponding target reference power sample point is less than the preset power deviation threshold, then the target disconnect switch in the GIS interval is determined to be in the normal disconnect switch state.

[0024] Optionally, the preset reference power signal includes a disconnector switch closing reference power signal and a disconnector switch opening reference power signal, and determining the corresponding target reference power signal from the preset reference power signal according to the action type includes:

[0025] When the action type includes the closing action of a disconnector switch, the disconnector switch closing reference power signal is used as the target reference power signal; or,

[0026] When the action type includes disconnector switch tripping, the disconnector switch tripping reference power signal is used as the target reference power signal.

[0027] According to a second aspect of the present disclosure, an apparatus for determining the state of a GIS interval is provided, the GIS interval including a plurality of disconnect switches, the apparatus comprising:

[0028] The acquisition module is configured to acquire the power signal of the drive motor of the GIS interval and the auxiliary contact position signal of each disconnecting switch, wherein the auxiliary contact position signal is used to characterize the current switching position of the disconnecting switch;

[0029] The determination module is configured to determine the state of the GIS interval based on the power signal and the auxiliary contact position signal.

[0030] Optionally, the power signal includes multiple power values ​​corresponding to a first time period, which is the time period during which the power value changes from an initial value and then changes back to the initial value. The auxiliary contact position signal includes a disconnector switch closed position signal and a disconnector switch open position signal. Each auxiliary contact position signal includes a first time point corresponding to the change in the disconnector switch closed position signal and a second time point corresponding to the change in the disconnector switch open position signal. The determining module is further configured to:

[0031] If the first time period does not include any of the first time points and does not include any of the second time points, then the auxiliary location node of the GIS interval is determined to be in a first fault state; or,

[0032] When the first time period includes the first time point and / or the second time point, the target disconnecting switch is determined according to the first target time point and / or the second target time point included in the first time period. The target disconnecting switch is the disconnecting switch in the GIS bay where the disconnecting switch is closed or the disconnecting switch is opened. The state of the target disconnecting switch in the GIS bay is determined according to the power signal and the auxiliary contact position signal.

[0033] Optionally, the determining module is further configured to:

[0034] If the first time period includes either the first time point or the second time point, it is determined that the auxiliary position contact of the target disconnector in the GIS interval is in a second fault state.

[0035] Optionally, the determining module is further configured to:

[0036] When the first time period includes the first time point and the second time point, the action type of the target disconnecting switch is determined according to the first time point and the second time point. The state of the target disconnecting switch in the GIS bay is determined according to the power signal, the first time period, the action type and the preset reference power signal. The action type includes disconnecting switch closing action or disconnecting switch opening action.

[0037] Optionally, the determining module is further configured to:

[0038] According to the action type, a corresponding target reference power signal is determined from the preset reference power signal. The target reference power signal includes multiple target reference power values ​​corresponding to a second time period. The second time period is the time period during which the target reference power value changes from the initial value and then changes back to the initial value.

[0039] If the deviation between the duration of the first time period and the duration of the second time period is greater than a preset duration deviation threshold, the target isolating switch in the GIS interval is determined to be in a third fault state.

[0040] Optionally, the determining module is further configured to:

[0041] If the difference between the duration of the first time period and the duration of the second time period is less than or equal to the preset duration deviation threshold, a preset number of power sample points are obtained from the power signal, and each power sample point includes the sample time and the corresponding sample power within the first time period.

[0042] For each power sample point, a corresponding target reference power sample point is obtained from the target reference power signal. Each target reference power sample point includes a target reference sample time and a corresponding target reference sample power. The first time deviation of the sample time of each power sample point relative to the first start time of the first time period is the same as the second time deviation of the target reference sample time of the corresponding target reference power sample point relative to the second start time of the second time period.

[0043] If the power deviation between the sample power of any power sample point and the target reference sample power of the corresponding target reference power sample point is greater than or equal to a preset power deviation threshold, the target disconnect switch in the GIS interval is determined to be in the fourth fault state.

[0044] Optionally, the determining submodule is further configured to:

[0045] If the difference between the duration of the first time period and the duration of the second time period is less than or equal to the preset duration deviation threshold, and the power deviation between the sample power of the power sample point and the target reference sample power of the corresponding target reference power sample point is less than the preset power deviation threshold, then the target disconnect switch in the GIS interval is determined to be in the normal disconnect switch state.

[0046] Optionally, the determining submodule is further configured to:

[0047] When the action type includes the closing action of a disconnector switch, the disconnector switch closing reference power signal is used as the target reference power signal; or,

[0048] When the action type includes disconnector switch tripping, the disconnector switch tripping reference power signal is used as the target reference power signal.

[0049] According to a third aspect of the present disclosure, an electronic device is provided, comprising:

[0050] A memory on which computer programs are stored;

[0051] A processor for executing the computer program in the memory to implement the steps of the method of any one of the first aspects.

[0052] According to a fourth aspect of the present disclosure, a computer-readable storage medium is provided that stores computer program instructions thereon, which, when executed by a processor, implement the steps of the method described in any of the first aspects.

[0053] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0054] This disclosure first acquires the power signal of the drive motor of the GIS bay and the auxiliary contact position signal of each disconnector switch, and then determines the state of the GIS bay based on the power signal and the auxiliary contact position signal. This allows for accurate determination of the GIS bay state, avoiding electrical equipment safety risks caused by inaccurate GIS bay state determination and ensuring the safe operation of electrical equipment.

[0055] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0056] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0057] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure, but do not constitute a limitation thereof.

[0058] Figure 1 This is a flowchart illustrating a method for determining the interval status of a GIS according to an exemplary embodiment.

[0059] Figure 2 This is an electrical control diagram of a GIS disconnector switch according to an exemplary embodiment.

[0060] Figure 3 This is a schematic diagram illustrating a power signal and an auxiliary contact position signal according to an exemplary embodiment.

[0061] Figure 4 This is a flowchart illustrating another method for determining the GIS interval status according to an exemplary embodiment.

[0062] Figure 5 This is a schematic diagram illustrating a power sample point and a target reference power sample point according to an exemplary embodiment.

[0063] Figure 6 This is a block diagram illustrating an apparatus for determining the interval status of a GIS according to an exemplary embodiment.

[0064] Figure 7 This is a block diagram illustrating an electronic device according to an exemplary embodiment. Detailed Implementation

[0065] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of this disclosure.

[0066] First, the application scenarios of this disclosure are explained. This disclosure can be applied to electrical technology to determine the interval status of GIS.

[0067] A GIS bay may include multiple disconnect switches. Each disconnect switch in the GIS bay is controlled by a disconnect switch control circuit. This disconnect switch control circuit controls the lever driven by the DC motor in the disconnect switch to complete the closing or opening action of the disconnect switch.

[0068] The inventors noted that in related technologies, the status of disconnectors in a GIS bay is determined by visually observing the indicated position of auxiliary position contacts synchronized with the disconnector lever. However, this method has significant limitations. For example, when an abnormality occurs inside the disconnector (such as a loosening of the internal structure), the status of the disconnector cannot be accurately determined by observing the indicated position of the auxiliary contacts. Furthermore, when jamming occurs inside the disconnector, observing the indicated position of the auxiliary contacts cannot promptly detect these potential hazards, affecting the safe operation of electrical equipment.

[0069] This disclosure provides a method, apparatus, electronic device, and storage medium for determining the GIS interval status, which can accurately determine the GIS interval status, avoid electrical equipment safety risks caused by inaccurate GIS interval status, and ensure the safe operation of electrical equipment.

[0070] The present disclosure will now be described in conjunction with specific embodiments.

[0071] Figure 1 This is a flowchart illustrating a method for determining the state of a GIS interval according to an exemplary embodiment. The GIS interval includes multiple disconnect switches, such as... Figure 1 As shown, the method may include the following steps:

[0072] In step S101, the power signal of the drive motor of the GIS bay and the auxiliary contact position signal of each disconnecting switch are obtained.

[0073] Among them, the auxiliary contact position signal is used to characterize the indicated position of the auxiliary contact of the disconnecting switch.

[0074] Figure 2 This is an electrical control diagram of a GIS disconnector switch according to an exemplary embodiment, such as... Figure 2 As shown, multiple disconnector switch control circuits are connected in parallel to form a parallel circuit, and a single power supply provides power to the multiple disconnector switch control circuits.

[0075] In some possible implementations, the voltage and current signals of the parallel circuit can be periodically acquired using a waveform recording device, thereby obtaining the power signals of the drive motors of the multiple disconnecting switches. For example, the power of the drive motors of the multiple disconnecting switches can be obtained by multiplying the voltage and current of the parallel circuit. For instance, the waveform recording device can be a portable waveform recorder, as detailed in the technical descriptions in related art, and will not be repeated here.

[0076] In some possible implementations, the auxiliary contact position signal of each disconnector can be obtained through ECMS (Electrical Control and Management System), which can be found in the description in the relevant technology, and will not be repeated here.

[0077] In step S102, the state of the GIS interval is determined based on the power signal and the auxiliary contact position signal.

[0078] The power signal includes multiple power values ​​corresponding to a first time period, which is the time period during which the power value changes from an initial value and then changes back to the initial value. In some possible implementations, the initial value can be zero. The auxiliary contact position signal includes a disconnector switch closed position signal and a disconnector switch open position signal. Each auxiliary contact position signal includes a first time point corresponding to the change of the disconnector switch closed position signal and a second time point corresponding to the change of the disconnector switch open position signal.

[0079] Figure 3 This is a schematic diagram illustrating a power signal and an auxiliary contact position signal according to an exemplary embodiment, such as... Figure 3 As shown:

[0080] The power signal and auxiliary contact position signal characterize the closing action of a disconnecting switch.

[0081] The auxiliary contact position signals include the disconnector switch open position signal 2 and the disconnector switch closed position signal 3. The disconnector switch closed position signal 3 includes a first time point 31 corresponding to the change of the disconnector switch closed position signal, indicating that the current switch position of the disconnector switch has changed from a pending position to a closed position. The disconnector switch open position signal 2 includes a second time point 21 corresponding to the change of the disconnector switch open position signal, indicating that the current switch position of the disconnector switch has changed from a closed position to a pending position.

[0082] At the start of the first time period, the power value of the DC motor power signal 1 changes from its initial value (e.g., zero), indicating that the DC motor has started and drives the lever to move, which in turn changes the disconnect switch open position signal 2 and the disconnect switch closed position signal 3, causing the disconnect switch to change from the disconnect switch open position to the pending position, and then from the pending position to the disconnect switch closed. When the power value of the power signal 1 changes back to its initial value (e.g., zero), it indicates that the disconnect switch has been closed and the first time period ends.

[0083] Figure 4 This is a flowchart illustrating another method for determining the GIS interval status according to an exemplary embodiment, such as... Figure 4 As shown, step S102 may include the following steps:

[0084] In step S1021, if the first time period does not include any first time point and does not include any second time point, the auxiliary location contact of the GIS interval is determined to be in a first fault state.

[0085] For example, if the first time period does not include any first time point and does not include any second time point, it is determined that the auxiliary position contact of the GIS interval is in a first fault state, that is, when the DC motor drives the lever to complete the closing or opening of the disconnecting switch, the auxiliary position contact of the corresponding disconnecting switch cannot indicate the current switch position.

[0086] In step S1022, if the first time period includes a first time point and / or a second time point, the target disconnect switch is determined according to the first target time point and / or the second target time point included in the first time period, and the state of the target disconnect switch in the GIS interval is determined according to the power signal and the auxiliary contact position signal.

[0087] The target disconnector is the disconnector in the GIS bay that has experienced a disconnector closing or disconnector opening.

[0088] By adopting the above-mentioned solution, the GIS interval status can be accurately determined, avoiding electrical equipment safety risks caused by inaccurate GIS interval status and ensuring the safe operation of electrical equipment.

[0089] In some embodiments, when the first time period includes one of a first time point or a second time point, it is determined that the auxiliary position contact of the target disconnector in the GIS interval is in a second fault state.

[0090] For example, when the first time period includes either a first time point or a second time point, it indicates that when the DC motor drives the lever to open or close the disconnector switch, the auxiliary position contact of the target disconnector switch cannot accurately indicate the current switch position. For example, in Figure 3 In the case where the first time period includes the first time point 31 but does not include the second time point 21, it indicates that when the DC motor drives the lever to move and the state of the target disconnect switch changes to the disconnect switch closed, the auxiliary position contact of the target disconnect switch cannot correctly indicate the current switch position of the target disconnect switch.

[0091] In other embodiments, when the first time period includes a first time point and a second time point, the action type of the target disconnect switch is determined based on the first time point and the second time point, and the state of the target disconnect switch in the GIS interval is determined based on the power signal, the first time period, the action type and the preset reference power signal.

[0092] The action types include closing the disconnector switch or opening the disconnector switch.

[0093] For example, such as Figure 3 As shown, when the first time point is later than the second time point, the action type of the target disconnecting switch is characterized as a disconnecting switch closing action.

[0094] Accordingly, if the first time point is earlier than the second time point, the action type of the target disconnecting switch is characterized as disconnecting switch tripping action.

[0095] For example, the state of the target disconnect switch in the GIS bay can be determined by the following steps, based on the power signal, the first time period, the action type, and the preset reference power signal.

[0096] Step 1: Determine the corresponding target reference power signal from the preset reference power signals according to the action type.

[0097] The preset reference power signal includes a disconnector switch closing reference power signal and a disconnector switch opening reference power signal. In some possible implementations, this preset reference power signal can be obtained by testing and recording a normally functioning reference disconnector switch. It is used to compare with the power signal to determine the state of the target disconnector switch in the GIS bay. The target reference power signal includes multiple target reference power values ​​corresponding to a second time period. This second time period is the time period during which the target reference power value changes from its initial value and then changes back to its initial value. In some possible implementations, the initial value can be zero.

[0098] For example, when the action type includes the closing action of a disconnector switch, the disconnector switch closing reference power signal is used as the target reference power signal; or,

[0099] When the action type includes disconnector switch tripping, the disconnector switch tripping reference power signal is used as the target reference power signal.

[0100] Step 2: If the deviation between the duration of the first time period and the duration of the second time period is greater than the preset duration deviation threshold, determine that the target disconnect switch in the GIS interval is in the third fault state.

[0101] For example, the third fault state may include a disconnector switch jamming fault or a disconnector switch structure loosening fault. In some possible implementations, if the deviation between the duration of the first time period and the duration of the second time period is greater than a preset duration deviation threshold, the third fault state can be determined based on the relationship between the durations of the first and second time periods. If the deviation between the durations of the first and second time periods is greater than the preset duration deviation threshold, and the duration of the first time period is greater than the duration of the second time period, the third fault state is characterized as a disconnector switch jamming fault. If the deviation between the durations of the first and second time periods is greater than the preset duration deviation threshold, and the duration of the first time period is less than the duration of the second time period, the third fault state is characterized as a disconnector switch structure loosening fault.

[0102] By adopting the above-mentioned solution, the GIS interval status can be accurately determined, avoiding electrical equipment safety risks caused by inaccurate GIS interval status and ensuring the safe operation of electrical equipment.

[0103] In some embodiments, the state of the target disconnect switch in the GIS interval can be further determined based on the power signal, the first time period, the action type, and the preset reference power signal through the following steps.

[0104] Step 1: If the difference between the duration of the first time period and the duration of the second time period is less than or equal to a preset duration deviation threshold, obtain a preset number of power sample points from the power signal. Each power sample point includes the sample time and corresponding sample power within the first time period.

[0105] Step 2: For each power sample point, obtain the corresponding target reference power sample point from the target reference power signal. Each target reference power sample point includes the target reference sample time and the corresponding target reference sample power. The first time deviation of the sample time of each power sample point relative to the first start time of the first time period is the same as the second time deviation of the target reference sample time of the corresponding target reference power sample point relative to the second start time of the second time period.

[0106] Figure 5 This is a schematic diagram illustrating a power sample point and a target reference power sample point according to an exemplary embodiment, such as... Figure 5 As shown:

[0107] A preset number of power sample points 4 are obtained in the power signal 1, and correspondingly, the target reference power sample point 6 corresponding to the power sample point 4 is obtained in the target reference power signal 5.

[0108] In some possible implementations, the aforementioned plurality of power sample points 4 can be obtained sequentially from the first start time of the first time period at a preset time interval (e.g., 20 milliseconds). The aforementioned plurality of target reference power sample points 6 can be obtained sequentially from the second start time of the second time period at the same preset time interval. This disclosure does not limit the selection of the number of power sample points or the sampling time interval for each power sample point.

[0109] Step 3: If the power deviation between the sample power of any power sample point and the target reference sample power of the corresponding target reference power sample point is greater than or equal to a preset power deviation threshold, determine that the target disconnect switch in the GIS interval is in the fourth fault state.

[0110] For example, the fourth fault state may include a disconnector switch jamming fault or a disconnector switch structure loosening fault. In some possible implementations, the fourth fault state can be further determined based on the relationship between the sample power and the target reference sample power. If the power deviation between the sample power at any power sample point and the target reference sample power at the corresponding target reference power sample point is greater than or equal to a preset power deviation threshold (e.g., 5%), and the sample power is greater than the target reference sample power, the fourth fault state is characterized as a disconnector switch jamming fault. If the power deviation between the sample power at any power sample point and the target reference sample power at the corresponding target reference power sample point is greater than or equal to a preset power deviation threshold (e.g., 5%), and the sample power is less than the target reference sample power, the fourth fault state is characterized as a disconnector switch structure loosening fault.

[0111] In another embodiment, if the difference between the duration of the first time period and the duration of the second time period is less than or equal to a preset duration deviation threshold, and the power deviation between the sample power of the power sample point and the target reference sample power of the corresponding target reference power sample point is less than a preset power deviation threshold, it is determined that the target disconnect switch in the GIS interval is in the normal disconnect switch state.

[0112] By adopting the above-mentioned solution, the GIS interval status can be accurately determined, avoiding electrical equipment safety risks caused by inaccurate GIS interval status and ensuring the safe operation of electrical equipment.

[0113] Figure 6 This is a block diagram illustrating an apparatus for determining the state of a GIS interval according to an exemplary embodiment. The GIS interval includes multiple disconnect switches, such as... Figure 6 As shown, the device 600 for determining the GIS interval status includes:

[0114] The acquisition module 601 is configured to acquire the power signal of the drive motor of the GIS bay and the auxiliary contact position signal of each disconnector switch. The auxiliary contact position signal is used to characterize the indicated position of the auxiliary contact of the disconnector switch.

[0115] The determination module 602 is configured to determine the state of the GIS interval based on the power signal and the auxiliary contact position signal.

[0116] Optionally, the power signal includes multiple power values ​​corresponding to a first time period, which is the time period during which the power value changes from an initial value and then changes back to the initial value. The auxiliary contact position signal includes a disconnector switch closed position signal and a disconnector switch open position signal. Each auxiliary contact position signal includes a first time point corresponding to the change in the disconnector switch closed position signal and a second time point corresponding to the change in the disconnector switch open position signal. The determining module 602 is further configured to:

[0117] If the first time period does not include any first time point and does not include any second time point, then the auxiliary location contact of the GIS interval is determined to be in a first fault state; or,

[0118] If the first time period includes a first time point and / or a second time point, the target disconnecting switch is determined based on the first target time point and / or the second target time point included in the first time period. The target disconnecting switch is the disconnecting switch in the GIS bay that has experienced disconnecting switch closing or disconnecting switch opening. The state of the target disconnecting switch in the GIS bay is determined based on the power signal and the auxiliary contact position signal.

[0119] Optionally, module 602 is also configured to:

[0120] If the first time period includes either the first time point or the second time point, it is determined that the auxiliary position contact of the target disconnector in the GIS interval is in the second fault state.

[0121] Optionally, module 602 is also configured to:

[0122] In the case where the first time period includes a first time point and a second time point, the action type of the target disconnector is determined based on the first time point and the second time point. The state of the target disconnector in the GIS bay is determined based on the power signal, the first time period, the action type and the preset reference power signal. The action type includes disconnector closing action or disconnector opening action.

[0123] Optionally, module 602 is also configured to:

[0124] The target reference power signal is determined from the preset reference power signal according to the action type. The target reference power signal includes multiple target reference power values ​​corresponding to the second time period, which is the time period during which the target reference power value changes from the initial value and then changes back to the initial value.

[0125] If the deviation between the duration of the first time period and the duration of the second time period is greater than a preset time deviation threshold, the target disconnect switch in the GIS interval is determined to be in the third fault state.

[0126] Optionally, module 602 is also configured to:

[0127] If the difference between the duration of the first time period and the duration of the second time period is less than or equal to a preset duration deviation threshold, a preset number of power sample points are obtained from the power signal. Each power sample point includes the sample time and the corresponding sample power within the first time period.

[0128] For each power sample point, the corresponding target reference power sample point is obtained from the target reference power signal. Each target reference power sample point includes the target reference sample time and the corresponding target reference sample power. The first time deviation of the sample time of each power sample point relative to the first start time of the first time period is the same as the second time deviation of the target reference sample time of the corresponding target reference power sample point relative to the second start time of the second time period.

[0129] If the power deviation between the sample power of any power sample point and the target reference sample power of the corresponding target reference power sample point is greater than or equal to a preset power deviation threshold, the target disconnect switch in the GIS interval is determined to be in the fourth fault state.

[0130] Optionally, module 602 is also configured to:

[0131] If the difference between the duration of the first time period and the duration of the second time period is less than or equal to the preset duration deviation threshold, and the power deviation between the sample power of the power sample point and the target reference sample power of the corresponding target reference power sample point is less than the preset power deviation threshold, then the target disconnect switch in the GIS interval is determined to be in the normal disconnect switch state.

[0132] Optionally, module 602 is also configured to:

[0133] When the action type includes disconnector switch closing, the disconnector switch closing reference power signal is used as the target reference power signal; or,

[0134] When the action type includes disconnector switch tripping, the disconnector switch tripping reference power signal is used as the target reference power signal.

[0135] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0136] By adopting the above scheme, the GIS interval status can be accurately determined, avoiding electrical equipment safety risks caused by inaccurate GIS interval status and ensuring the safe operation of electrical equipment.

[0137] Figure 7 This is a block diagram illustrating an electronic device 700 according to an exemplary embodiment. Figure 7 As shown, the electronic device 700 may include a processor 701 and a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input / output interface 704, and a communication component 705.

[0138] The processor 701 controls the overall operation of the electronic device 700 to complete all or part of the steps in the method for determining the GIS interval status. The memory 702 stores various types of data to support the operation of the electronic device 700. This data may include, for example, instructions for any application or method operating on the electronic device 700, and application-related data such as contact data, sent and received messages, pictures, audio, video, etc. The memory 702 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. Multimedia component 703 may include a screen and an audio component. The screen may be, for example, a touchscreen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in memory 702 or transmitted via communication component 705. The audio component also includes at least one speaker for outputting audio signals. Input / output interface 704 provides an interface between processor 701 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual or physical buttons. Communication component 705 is used for wired or wireless communication between the electronic device 700 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IoT, eMTC, or other 5G technologies, or combinations thereof, is not limited here. Therefore, the corresponding communication component 705 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.

[0139] In another exemplary embodiment, a non-transitory computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the method for determining the GIS interval state described above. For example, the computer-readable storage medium may be the memory including the program instructions described above, which can be executed by a processor of an electronic device to perform the method for determining the GIS interval state described above.

[0140] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0141] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method for determining the interval status of a GIS, characterized in that, The GIS bay includes multiple disconnect switches, and the multiple disconnect switch control circuits corresponding to the multiple disconnect switches are connected in parallel to form a parallel circuit. The method includes: The system acquires the power signal of the drive motor of the GIS interval and the auxiliary contact position signal of each disconnector switch. The auxiliary contact position signal is used to characterize the current switch position of the disconnector switch. The power signal is acquired by collecting the voltage and current of the parallel circuit. The power signal includes multiple power values ​​corresponding to a first time period, which is the time period during which the power value changes from an initial value and then changes back to the initial value. The auxiliary contact position signal includes a disconnector switch closed position signal and a disconnector switch open position signal. Each auxiliary contact position signal includes a first time point corresponding to the change of the disconnector switch closed position signal and a second time point corresponding to the change of the disconnector switch open position signal. If the first time period does not include any of the first time points and does not include any of the second time points, the auxiliary location contact of the GIS interval is determined to be in a first fault state. When the first time period includes the first time point and / or the second time point, a target disconnecting switch is determined based on the first target time point and / or the second target time point included in the first time period. The target disconnecting switch is the disconnecting switch in the GIS bay that has experienced disconnecting switch closing or disconnecting switch opening. The state of the target disconnecting switch in the GIS bay is determined based on the power signal and the auxiliary contact position signal, including: when the first time period includes the first time point and the second time point, determining the action type of the target disconnecting switch based on the first time point and the second time point, and determining the state of the target disconnecting switch in the GIS bay based on the power signal, the first time period, the action type, and a preset reference power signal. The action type includes disconnecting switch closing action or disconnecting switch opening action.

2. The method according to claim 1, characterized in that, Determining the state of the target disconnect switch in the GIS interval based on the power signal and the auxiliary contact position signal includes: If the first time period includes either the first time point or the second time point, it is determined that the auxiliary position contact of the target disconnector in the GIS interval is in a second fault state.

3. The method according to claim 1, characterized in that, Determining the state of the target disconnect switch in the GIS interval based on the power signal, the first time period, the action type, and the preset reference power signal includes: According to the action type, a corresponding target reference power signal is determined from the preset reference power signal. The target reference power signal includes multiple target reference power values ​​corresponding to a second time period. The second time period is the time period during which the target reference power value changes from the initial value and then changes back to the initial value. If the deviation between the duration of the first time period and the duration of the second time period is greater than a preset duration deviation threshold, the target isolating switch in the GIS interval is determined to be in a third fault state.

4. The method according to claim 3, characterized in that, The method further includes: If the difference between the duration of the first time period and the duration of the second time period is less than or equal to the preset duration deviation threshold, a preset number of power sample points are obtained from the power signal, and each power sample point includes the sample time and the corresponding sample power within the first time period. For each power sample point, a corresponding target reference power sample point is obtained from the target reference power signal. Each target reference power sample point includes a target reference sample time and a corresponding target reference sample power. The first time deviation of the sample time of each power sample point relative to the first start time of the first time period is the same as the second time deviation of the target reference sample time of the corresponding target reference power sample point relative to the second start time of the second time period. If the power deviation between the sample power of any power sample point and the target reference sample power of the corresponding target reference power sample point is greater than or equal to a preset power deviation threshold, the target disconnect switch in the GIS interval is determined to be in the fourth fault state.

5. The method according to claim 4, characterized in that, The method further includes: If the difference between the duration of the first time period and the duration of the second time period is less than or equal to the preset duration deviation threshold, and the power deviation between the sample power of the power sample point and the target reference sample power of the corresponding target reference power sample point is less than the preset power deviation threshold, then the target disconnect switch in the GIS interval is determined to be in the normal disconnect switch state.

6. The method according to any one of claims 3 to 5, characterized in that, The preset reference power signal includes a disconnector switch closing reference power signal and a disconnector switch opening reference power signal. Determining the corresponding target reference power signal from the preset reference power signal based on the action type includes: When the action type includes the closing action of a disconnector switch, the disconnector switch closing reference power signal is used as the target reference power signal; or, When the action type includes disconnector switch tripping, the disconnector switch tripping reference power signal is used as the target reference power signal.

7. An apparatus for determining the interval status of a GIS, characterized in that, The GIS bay includes multiple disconnect switches, and the multiple disconnect switch control circuits corresponding to the multiple disconnect switches are connected in parallel to form a parallel circuit. The device includes: The acquisition module is configured to acquire the power signal of the drive motor of the GIS interval and the auxiliary contact position signal of each disconnector switch. The auxiliary contact position signal is used to characterize the current switch position of the disconnector switch. The power signal is acquired by collecting the voltage and current of the parallel circuit. The power signal includes multiple power values ​​corresponding to a first time period. The first time period is the time period during which the power value changes from an initial value and then changes back to the initial value. The auxiliary contact position signal includes a disconnector switch closed position signal and a disconnector switch open position signal. Each auxiliary contact position signal includes a first time point corresponding to the change of the disconnector switch closed position signal and a second time point corresponding to the change of the disconnector switch open position signal. The determination module is configured to: determine that the auxiliary location node of the GIS interval is in a first fault state when the first time period does not include any of the first time points and does not include any of the second time points; When the first time period includes the first time point and / or the second time point, a target disconnecting switch is determined based on the first target time point and / or the second target time point included in the first time period. The target disconnecting switch is the disconnecting switch in the GIS bay that has experienced disconnecting switch closing or disconnecting switch opening. The state of the target disconnecting switch in the GIS bay is determined based on the power signal and the auxiliary contact position signal, including: when the first time period includes the first time point and the second time point, determining the action type of the target disconnecting switch based on the first time point and the second time point, and determining the state of the target disconnecting switch in the GIS bay based on the power signal, the first time period, the action type, and a preset reference power signal. The action type includes disconnecting switch closing action or disconnecting switch opening action.

8. An electronic device, characterized in that, include: A memory on which computer programs are stored; A processor for executing the computer program in the memory to implement the steps of the method according to any one of claims 1-6.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the steps of the method described in any one of claims 1-6.

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