Disconnector position double confirmation method, device, electronic equipment and storage medium

Abstract

The disclosed embodiment discloses a method, device, electronic device and storage medium for double confirmation of isolating switch position, including: obtaining a remote signal of the isolating switch position, and collecting electric field strength information of the isolating switch, the electric field strength information including the electric field strength signal and the change in electric field strength before and after the operation; determining a first judgment result of the isolating switch according to the remote signal; determining a second judgment result of the isolating switch according to the electric field strength information; and determining the position of the isolating switch according to the first judgment result and the second judgment result. This technical solution uses the remote signal and the electric field strength information to respectively determine the position of the isolating switch, and accordingly double confirms the position of the isolating switch, thereby improving the accuracy and reliability of isolating switch position detection.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of power monitoring technology, and in particular to a method, device, electronic device and storage medium for double confirmation of isolating switch position. Background Art

[0002] At present, there is no one on duty in power substations below 220kV, and there is a trend of few people on duty in power substations above 500kV, which puts higher requirements on the daily operation and maintenance of substations. In traditional substation switching operations, substation operation and maintenance personnel need to shuttle back and forth between the high-voltage room, the main control room and the primary equipment area. Each step of the operation requires the operation and maintenance personnel to go to the equipment area for on-site execution and confirmation. The operation volume is large, and there is a risk of personnel fatigue, mistaken entry into the interval, and misoperation of equipment. In view of this, the "one-button sequential control" technology has emerged in recent years to improve the quality and efficiency of operations. One-button sequential control is an operation mode for substation switching operations. Through the one-button sequential control host and the "double five anti-verification" of the intelligent anti-error host, the traditional operation project software is prefabricated, the operation task module is built, the equipment status is automatically judged, and the anti-error interlocking is intelligently checked. The operation steps are started with one button, and the operation process is automatically executed in sequence, completing the automatic conversion between the three states of substation operation, hot standby, and cold standby. After the implementation of "one-button sequential control", only one button is needed to switch the device status, and the computer can automatically and accurately complete a series of equipment switching operations, realizing the transformation of substation switching operations from "manual operation item by item" to "computer remote automatic operation". The original process of issuing orders, repeating, operating, and checking item by item for more than 10 minutes can be simplified to a 1-minute automatic operation of the sequential control host, greatly reducing the personal risks of substation operation and maintenance personnel in switching operations.

[0003] A key link in the implementation of one-button sequential control is the confirmation of the position of the high-voltage disconnector. At present, the position of the substation disconnector is mainly determined by the position telesignal. There are some methods that can be combined with the attitude sensor to assist in judging the position of the disconnector by measuring the rotation angle of the three-phase disconnector contact arm, but the reliability of the attitude sensor is low; or the micro switch installed on the disconnector mechanism box or the corresponding transmission crank arm is used to detect the opening and closing signal, but some types of micro switches have the problem of being homologous to the auxiliary contacts of the switch, which also leads to low reliability; or the video linkage and intelligent analysis technology are used to assist in judging the position of the disconnector, but due to the location limitations of the camera deployment, it is generally only possible to observe whether the blade is in place. If the connecting rod is not fully in place, it cannot be accurately detected. In summary, the accuracy of the current high-voltage disconnector position detection is low, and the level of substation disconnector position monitoring needs to be improved. Summary of the invention

[0004] The embodiments of the present disclosure provide a method, device, electronic device and storage medium for double confirmation of isolating switch position, which improves the accuracy and reliability of isolating switch position detection.

[0005] In a first aspect, a method for double confirmation of disconnector position is provided, comprising:

[0006] Obtaining a remote signal of the disconnector position and collecting electric field strength information of the disconnector, wherein the electric field strength information includes an electric field strength signal and a change in electric field strength before and after the operation;

[0007] Determine a first judgment result of the disconnector according to the remote signal;

[0008] Determine a second decision result of the isolating switch according to the electric field strength information;

[0009] The position of the isolating switch is determined according to the first judgment result and the second judgment result.

[0010] In a second aspect, a dual confirmation device for isolating switch position is provided, comprising:

[0011] A signal acquisition module, used to acquire the remote signal of the disconnector position and collect the electric field strength information of the disconnector, wherein the electric field strength information includes the electric field strength signal and the change of the electric field strength before and after the operation;

[0012] A first judgment module, used to determine a first judgment result of the disconnector according to the remote signal;

[0013] A second judgment module, used to determine a second judgment result of the isolation switch according to the electric field strength information;

[0014] A position determination module is used to determine the position of the disconnector according to the first judgment result and the second judgment result.

[0015] According to a third aspect, an electronic device is provided, the electronic device comprising:

[0016] at least one processor; and;

[0017] a memory communicatively connected to the at least one processor; wherein,

[0018] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the disconnector position double confirmation method provided in the first aspect.

[0019] In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, the method for double confirmation of the position of an isolating switch provided in the first aspect of the embodiment of the present disclosure is implemented.

[0020] The disclosed embodiment provides a method, device, electronic device and storage medium for double confirmation of disconnector position, including: obtaining a remote signal of disconnector position, and collecting electric field strength information of the disconnector, the electric field strength information including the electric field strength signal and the change in electric field strength before and after operation; determining a first judgment result of the disconnector according to the remote signal; determining a second judgment result of the disconnector according to the electric field strength information; and determining the position of the disconnector according to the first judgment result and the second judgment result. This technical solution uses the remote signal and the electric field strength information to respectively determine the position of the disconnector, and accordingly double confirms the position of the disconnector, thereby improving the accuracy and reliability of disconnector position detection.

[0021] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the embodiments of the present disclosure. Other features of the embodiments of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a flow chart of a method for double confirmation of isolating switch position provided in the first embodiment of the present disclosure;

[0024] Figure 2 is a schematic diagram of determining a second judgment result according to electric field strength information provided by the first embodiment of the present disclosure;

[0025] Figure 3 is a schematic diagram of an isolating switch model provided in the first embodiment of the present disclosure;

[0026] Figure 4 is a schematic diagram of determining whether the change in electric field intensity is consistent with a target state, provided in Embodiment 1 of the present disclosure;

[0027] Figure 5 It is a schematic diagram of determining the position of an isolating switch according to a remote signal and electric field strength information provided by the first embodiment of the present disclosure;

[0028] Figure 6 is a schematic diagram of an installation position of an isolating switch monitoring device provided in the first embodiment of the present disclosure;

[0029] Figure 7 It is a structural schematic diagram of a dual confirmation device for the position of an isolating switch provided in the second embodiment of the present disclosure;

[0030] Figure 8 It is a structural diagram of an electronic device provided in Embodiment 3 of the present disclosure. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only embodiments of a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the embodiments of the present disclosure.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0033] Embodiment 1

[0034] Figure 1 This is a flow chart of a method for double confirmation of isolating switch position provided in the first embodiment of the present disclosure. This embodiment can be applied to the situation of determining the isolating switch position. The method can be executed by a double confirmation device for isolating switch position. The double confirmation device for isolating switch position can be implemented in the form of hardware and / or software. The double confirmation device for isolating switch position can be configured in an electronic device. Figure 1 As shown, the method includes:

[0035] S110, obtaining a remote signal of the disconnector position, and collecting electric field strength information of the disconnector, wherein the electric field strength information includes an electric field strength signal and a change in electric field strength before and after the operation.

[0036] In this embodiment, the remote signal can be understood as a switching quantity, which can be used to indicate the open / closed state of the disconnector, and serve as the main basis for determining the position (open or closed) of the disconnector. In addition, the electric field strength information of the disconnector can be collected by an electric field strength sensor installed under the three-phase supporting porcelain bottle, and the electric field strength signal of the disconnector and the law of electric field strength change can be used to assist in determining the position of the disconnector. Among them, the electric field strength information includes the electric field strength signal and the change in electric field strength before and after the operation, and the electric field strength signal includes the three-phase electric field strength signals of A, B, and C. The operation can refer to operations such as reversing, closing, opening, or reversing. Taking the operation of changing from opening to closing as an example, the change in electric field strength before and after the operation is usually a positive value, that is, a certain electric field strength increment is generated.

[0037] S120. Determine a first judgment result of the disconnector according to the remote signal.

[0038] In this embodiment, the remote signal is used as the main judgment criterion. The remote signal can indicate whether the disconnector changes from closed to open (corresponding to the open position) or from open to closed (corresponding to the closed position), thereby obtaining a first judgment result.

[0039] S130. Determine a second judgment result of the isolating switch according to the electric field strength information.

[0040] In this embodiment, the electric field strength information is used as an auxiliary criterion. By analyzing the electric field strength signal and the change in electric field strength, it can also be determined whether the disconnector is from closed to open (corresponding to the open position) or from open to closed (corresponding to the closed position), thereby obtaining the second judgment result. Wherein, in the absence of other faults and risks, if the three phases of the electric field strength signal are consistent, and the change in electric field strength conforms to the change law from closed to open, the second judgment result can be determined to be from closed to open; in the absence of other faults and risks, if the three phases of the electric field strength signal are consistent, and the change in electric field strength conforms to the change law from open to closed, the second judgment result can be determined to be from open to closed.

[0041] S140. Determine the position of the isolating switch according to the first judgment result and the second judgment result.

[0042] Specifically, if the second judgment result is consistent with the first judgment result, that is, the isolating switch meets the double confirmation condition, it can be determined that the position of the isolating switch is the position corresponding to the above two judgment results.

[0043] The method of this embodiment uses the remote signal and the electric field strength information to determine the position of the disconnector respectively, and on this basis, the disconnector position is double-confirmed, thereby improving the accuracy and reliability of disconnector position detection. The method does not rely on the auxiliary contacts of the disconnector, so that the auxiliary judgment is independent of the main judgment criterion to the maximum extent; the disconnector position is reliably identified by introducing a new monitoring quantity, and the monitoring quantity can be obtained by non-invasive monitoring, thereby improving the safety and convenience of the system.

[0044] In one embodiment, a second judgment result of the disconnector is determined based on the electric field strength information, including: when the criterion for determining the electric field strength information is available, if the disconnector has no latent fault, the three-phase synchronization of the electric field strength signal, and the change in the electric field strength is consistent with the target state, then the second judgment result is determined to be that the disconnector corresponds to the target state.

[0045] Specifically, the criterion of electric field strength information is available, which can be understood as the premise that electric field strength information can be used as an auxiliary judgment, such as the normal operation of the electric field strength sensor. Under the condition that these premises are met, it is effective and accurate to determine the position of the disconnector according to the electric field strength information. Latent faults can be understood as undetected faults that may exist in the substation system or various components, which can be determined by a fault monitoring device. The fault monitoring device is an online monitoring device for disconnectors. It can determine whether there is a latent fault in the disconnector according to vibration signals and electric field strength signals. If there is a latent fault, further judgment is required immediately. If necessary, the disconnector needs to be stopped for maintenance. Otherwise, the electric field strength information obtained based on the fault state is unreliable. The three-phase synchronization of the electric field strength signal can be understood as the electric field strength signals corresponding to the positive three-phase poles have certain similarities. The target state can refer to the change state of the disconnector corresponding to a specific position given in the database, such as the change from open to closed in the closed position, and the change from closed to open in the open position.

[0046] Among them, considering that the telesignal signal is used as the main criterion, the state corresponding to the first judgment result can be used as the target state. For example, if the first judgment result is determined to be from closing to opening according to the telesignal signal, then when the second judgment result of the disconnector is determined according to the electric field strength information, it can be focused on confirming whether the change in electric field strength and the signal change law from closing to opening are consistent. If they are consistent, it is determined that the second judgment result is also from closing to opening, thereby determining that the disconnector position is open; similarly, if the first judgment result is determined to be from opening to closing according to the telesignal signal, then when the second judgment result of the disconnector is determined according to the electric field strength information, it can be focused on confirming whether the change in electric field strength and the signal change law from opening to closing are consistent. If they are consistent, it is determined that the second judgment result is also from opening to closing, thereby determining that the disconnector position is closed.

[0047] Figure 2FIG. 1 is a schematic diagram of determining a second judgment result according to electric field strength information provided in the first embodiment of the present disclosure. The case of switching from separation to combination is used as an example for explanation. Figure 2 As shown, the input of the field strength criterion is a logic for judging whether the criterion of the electric field strength information is available, that is, judging whether the electric field strength information is suitable as an auxiliary criterion. If it cannot be input (the logical value can be 0), for example, the electric field strength sensor fails or the monitoring device of the disconnector alarms, the collected electric field strength information is unreliable and therefore cannot be used as an auxiliary criterion. In this case, no matter what the results of the other three logical judgments are, it is impossible to confirm that the disconnector has changed from open to closed (closed position) based on the double confirmation method; if it can be input (the logical value can be 1), then it is further comprehensively determined from the other three aspects whether the disconnector has changed from open to closed (closed position). Specifically, if the change in the electric field strength is consistent with the change law from open to closed (logical value is 1), the three-phase synchronization of the electric field strength signal (logical value is 1), and the disconnector has no latent fault (logical value is 1), then according to these three aspects (logical AND operation of the corresponding three logical values), it can be comprehensively determined whether the disconnector has changed from open to closed (closed position).

[0048] It can be understood that if any one of the above three aspects is not satisfied (logical value is 0), for example, if there is a latent fault (such as a closing, opening, closing, or an error in the telesignaling signal), or the three-phase electric field strength signal is not synchronized (such as a phase refuses to close or the connecting rod is not in place, the electric field strength signal of this phase will be very different from other phases, and the distinction is very obvious), or the change in electric field strength is inconsistent with the change law from opening to closing, then the result of the logical AND operation is 0, that is, it is impossible to determine whether the disconnector changes from opening to closing (closed position).

[0049] In one embodiment, whether the change in electric field strength is consistent with the target state is determined according to the charged state of the conductors related to the disconnector.

[0050] In this embodiment, a model can be established for the disconnector and analyzed based on whether the change in electric field strength is consistent with the change law from disconnection to connection. Figure 3 Schematic diagram of a disconnector model provided in the first embodiment of the present disclosure. Taking the closing of a 220kV disconnector (single-blade) as an example (i.e. busbar charging), the following is established: Figure 3In the model shown, the three conductors are respectively recorded as L1, L2, and L3. L1 can be the conductor connecting the disconnector and the line-side equipment, L2 is the movable part of the disconnector, and L3 can be the conductor connecting the disconnector and the bus-side equipment. The separation and connection of the disconnector is mainly reflected in whether L2 is separated or connected. When switching, assuming that the disconnector has no latent fault, when the disconnector is in the open state, L2 is disconnected, and parts of L1 and L3 may be energized or not. If the separation changes to the close state at this time, the electric field strength sensor installed on the beam will feel that the electric field strength will change greatly. This change is much greater than the electric field strength caused by weather changes and voltage fluctuations at ordinary times, which is enough to distinguish whether the separation changes to the close state. The separation changes to the close state of the on-site disconnector correspond to a variety of operating conditions. This change from separation to close state can be characterized by whether the three conductors in the model are energized. According to the previously established database of the corresponding relationship between the electric field strength change and the energized state of the three conductors, it can be judged whether the electric field strength change conforms to the law of separation changes to close state under various working conditions, and whether the separation switch has completed the separation changes to close state.

[0051] For example, the corresponding working condition of general operation is L1 without power and L3 without power; the corresponding working condition of reverse operation is L1 with power and L3 with power; the corresponding working condition of 500kV switching operation may be L1 with power and L3 without power, or L1 without power and L3 with power. For the above four working conditions, different thresholds can be set. If the change in electric field strength meets the threshold under the corresponding working condition, it can be determined whether the change in electric field strength is consistent with the target state.

[0052] In one embodiment, whether the change in electric field strength is consistent with the target state is determined based on the charged state of the two conductors of the isolating switch, including: if the first conductor is charged and the third conductor is charged before the operation, the electric field strength signal is greater than the threshold value, and the change in electric field strength is less than the first threshold value, then the change in electric field strength is consistent with the target state.

[0053] In this embodiment, the working condition of the reverse operation is mainly aimed at, that is, the first conductor segment is energized and the third conductor segment is energized (L1 is energized and L3 is energized) before the operation. Under this working condition, the electric field strength signal (E) is greater than the threshold value (E1). If the change in electric field strength (ΔE) after the operation is less than the first threshold value (ΔE1), it can be determined that the change in electric field strength is consistent with the target state.

[0054] In one embodiment, whether the change in electric field strength is consistent with the target state is determined based on the charged state of the two conductors of the isolating switch, including: if the first conductor is energized and the third conductor is not energized before the operation, and the change in electric field strength is greater than the first threshold and less than the second threshold, then the change in electric field strength is consistent with the target state.

[0055] In this embodiment, the first working condition of the 500kV switching operation is mainly aimed at, that is, the first conductor segment is energized and the third conductor segment is not energized before the operation (L1 is energized and L3 is not energized). Under this working condition, the electric field strength signal (E) is greater than the threshold value (E1). If the change in electric field strength (ΔE) after the operation is greater than the first threshold value (ΔE1) and less than the second threshold value (ΔE2), it can be determined that the change in electric field strength is consistent with the target state. In one embodiment, determining whether the change in electric field strength is consistent with the target state is based on the energized state of the two conductor segments of the disconnector, including: if the first conductor segment is not energized and the third conductor segment is energized before the operation, and the change in electric field strength is greater than the first threshold value and less than the third threshold value, then the change in electric field strength is consistent with the target state.

[0056] In this embodiment, the second operating condition of 500kV switching is mainly targeted, that is, the first section of the conductor is de-energized and the third section of the conductor is energized before operation (L1 is de-energized and L3 is energized). Under this operating condition, if the change in electric field strength (ΔE) after operation is greater than the first threshold (ΔE1) and less than the third threshold (ΔE3), it can be determined that the change in electric field strength is consistent with the target state.

[0057] In one embodiment, whether the change in electric field strength is consistent with the target state is determined based on the charged state of the two conductors of the isolating switch, including: if the first conductor is de-energized and the third conductor is de-energized before the operation, and the change in electric field strength is less than a fourth threshold, then the change in electric field strength is consistent with the target state.

[0058] In this embodiment, it is mainly aimed at general operation conditions (such as closing the isolating switch when the power is cut off for maintenance in the interval), that is, the first section of the conductor has no electricity and the third section of the conductor has no electricity before the operation (L1 has no electricity, L3 has no electricity). Under this condition, if the electric field strength after the operation is less than the fourth threshold value (E4), it can be determined that the change in the electric field strength is consistent with the target state.

[0059] In one embodiment, a logical OR operation can be performed on the judgment results of the above four working conditions (under each working condition, if they are consistent, the logical value is 1, and if they are inconsistent, the logical value is 0). If at least one of the working conditions is met, it can be determined that the change in electric field strength is consistent with the target state. Figure 4 is a schematic diagram of determining whether the change in electric field strength is consistent with the target state provided by the first embodiment of the present disclosure; Figure 4As shown, E is the measured electric field strength, ΔE is the increment of the electric field strength before and after the operation (the change in electric field strength), and ΔE>0 generally exists for the change from opening to closing; E1 is the threshold value of the electric field strength after closing; ΔE1 is the first threshold value, that is, when the conductors L1 and L3 on both sides of the disconnector are energized, the threshold value of the electric field strength increment after closing, and this value is also used as the low value of the electric field strength increment threshold under other working conditions; ΔE2 is the second threshold value, that is, when the conductors L1 and L3 on both sides of the disconnector are energized, the high value of the electric field strength increment threshold after closing; ΔE2 is the third threshold value, that is, when the conductors L1 and L3 on both sides of the disconnector are not energized, the high value of the electric field strength increment threshold after closing; E4 is the fourth threshold value, that is, when the conductors L1 and L3 on both sides of the disconnector are not energized, the constant value of the electric field strength after closing.

[0060] It should be noted that, when the isolating switch changes from closed to open, it is also possible to determine whether the change in electric field strength is consistent with the target state according to the charged state of the two conductors of the isolating switch under different working conditions. The judgment process is similar to the judgment process of changing from open to closed, but the threshold value, each threshold value and the charged state of the three conductors under different working conditions may be different, which will not be repeated in this embodiment.

[0061] In one embodiment, the method further includes: establishing a corresponding relationship database according to the corresponding relationship between the change in electric field intensity under different working conditions and the target state.

[0062] In this embodiment, the correspondence between the change in electric field strength and the target state can be analyzed in advance for different working conditions, and the change law of the electric field strength under different operations in various working conditions can be analyzed and stored in the database as a basis for subsequent judgment of whether they are consistent. Among them, the correspondence between the change in electric field strength and the target state includes: the correspondence between the change in electric field strength and the state from open to closed (closed position), and the correspondence between the change in electric field strength and the state from closed to open (open position), based on which it can be determined whether the change in electric field strength before and after the actual operation conforms to the law of the target state stored in the database.

[0063] In one embodiment, the position of the isolating switch is determined according to a first judgment result and a second judgment result, including: if the first judgment result is that the isolating switch corresponds to a target state, and the second judgment result is that the isolating switch corresponds to the target state, then the position of the isolating switch is determined to be the position corresponding to the target state.

[0064] Specifically, if the first judgment result and the second judgment result are consistent with the target state (from closed to open or from open to closed), the position of the disconnector can be determined to be the position corresponding to the target state (open position or closed position). For example, if the telesignaling signal corresponds to the target state, and the electric field strength information corresponds to the target state (the judgment criteria of the electric field strength information are available, the disconnector has no latent fault, the electric field strength signal is three-phase synchronous, and the change amount of the electric field strength is consistent with the law of the target state), then the position of the disconnector is determined to be the position corresponding to the target state.

[0065] Figure 5 Schematic diagram of determining the position of an isolating switch according to a telesignaling signal and electric field strength information provided by the first embodiment of the present disclosure. Figure 5 As shown, taking the case of opening to closing as an example, if the telesignal corresponds to opening to closing, and the electric field strength information corresponds to opening to closing, the position of the disconnector is determined to be closed. Among them, the electric field strength information corresponding to opening to closing must meet the following conditions: the criterion of the electric field strength information is available, the disconnector has no latent fault, the three-phase synchronization of the electric field strength signal, and the change in the electric field strength is consistent with the law of opening to closing.

[0066] In one embodiment, the method further includes: verifying the synchronicity of opening and closing of the disconnector according to the electric field strength information.

[0067] Among them, synchronicity refers to the degree of three-phase synchronicity when opening or closing. The smaller the synchronicity, the better. If the disconnector is seriously out of sync when opening or closing, it will cause non-full-phase access or removal of the line or electrical equipment, which may cause overvoltage that endangers the insulation of the equipment, damage the contacts of the disconnector, and cause poor synchronization of the generator and transformer. In this embodiment, the electric field strength information can be used to verify the synchronicity of the opening and closing of the disconnector, providing safety protection for the opening and closing quality of the disconnector and the operation of the disconnector.

[0068] In one embodiment, the electric field strength information is collected by an isolating switch monitoring device, which is installed in an intelligent electronic device (IED) cabinet within a set range around the isolating switch. On this basis, the isolating switch monitoring device is easy to install and can be flexibly deployed, thereby improving the convenience of monitoring any isolating switch.

[0069] In one embodiment, the isolating switch monitoring device is provided with a sensor interface for acquiring an electric field strength signal; the isolating switch monitoring device is also provided with an Ethernet port for communicating through a router and an optical fiber box.

[0070] Figure 6 Schematic diagram of the installation position of an isolating switch monitoring device provided in the first embodiment of the present disclosure. Figure 6As shown, one or more isolating switch monitoring devices can be installed in an intelligent IDE cabinet. Each isolating switch monitoring device can read the electric field strength signal measured by the electric field strength sensor through the sensor interface. Data can be transmitted between the isolating switch monitoring devices and between the isolating switch monitoring devices and the electronic equipment through Ethernet, thereby realizing data interaction and providing guarantee for the position monitoring of the isolating switch.

[0071] Embodiment 2

[0072] Figure 7 is a schematic diagram of the structure of a dual confirmation device for isolating switch position provided in the second embodiment of the present disclosure; Figure 7 As shown, the device comprises:

[0073] The signal acquisition module 210 is used to acquire the remote signal of the disconnector position and collect the electric field strength information of the disconnector, wherein the electric field strength information includes the electric field strength signal and the change amount of the electric field strength before and after the operation;

[0074] A first judgment module 220, configured to determine a first judgment result of the disconnector according to the remote signal;

[0075] A second decision module 230, configured to determine a second decision result of the isolating switch according to the electric field strength information;

[0076] The position determination module 240 is used to determine the position of the disconnector according to the first judgment result and the second judgment result.

[0077] Embodiment 2 of the present disclosure provides a dual confirmation device for the isolating switch position, which uses remote signaling signals and electric field strength information to respectively determine the position of the isolating switch, thereby performing dual confirmation on the isolating switch position, thereby improving the accuracy and reliability of isolating switch position detection.

[0078] Optionally, the second decision module 230 is used to:

[0079] When the criterion for determining the electric field strength information is available, if the disconnector has no latent fault, the three-phase synchronization of the electric field strength signal, and the change in the electric field strength is consistent with the target state, the second judgment result is determined to be that the disconnector corresponds to the target state.

[0080] Optionally, the device further comprises:

[0081] The consistency judgment module is used to determine whether the electric field strength change is consistent with the target state according to the charged state of the two conductors of the isolating switch.

[0082] Optional, consistent judgment module, used to:

[0083] If the first conductor segment is electrified and the third conductor segment is electrified before the operation, the electric field strength signal is greater than the threshold value, and the electric field strength variation is less than the first threshold value, then the electric field strength variation is consistent with the target state.

[0084] Optional, consistent judgment module, used to:

[0085] If the first conductor segment is electrified and the third conductor segment is de-energized before the operation, and the electric field strength variation is greater than the first threshold value and less than the second threshold value, the electric field strength variation is consistent with the target state.

[0086] Optional, consistent judgment module, used to:

[0087] If the first conductor segment is de-energized and the third conductor segment is energized before the operation, and the electric field strength variation is greater than the first threshold and less than the third threshold, the electric field strength variation is consistent with the target state.

[0088] Optional, consistent judgment module, used to:

[0089] If the first conductor segment is de-energized and the third conductor segment is de-energized before the operation, and the change in the electric field strength is less than the fourth threshold, then the change in the electric field strength is consistent with the target state.

[0090] Optionally, the location determination module 240 is used to:

[0091] If the first judgment result is that the isolating switch corresponds to the target state, and the second judgment result is that the isolating switch corresponds to the target state, then the position of the isolating switch is determined to be the position corresponding to the target state.

[0092] Optionally, the device further comprises:

[0093] The module is used to establish a corresponding relationship database according to the corresponding relationship between the change in the electric field intensity and the target state under different working conditions.

[0094] Optionally, the device further comprises:

[0095] A verification module is used to verify the synchronicity of the opening and closing of the disconnector according to the electric field strength information.

[0096] Optionally, the electric field strength information is collected by an isolating switch monitoring device, and the isolating switch monitoring device is installed in an intelligent electronic device IED cabinet within a set range around the isolating switch.

[0097] Optionally, a sensor interface is provided in the isolating switch monitoring device for acquiring the electric field strength signal;

[0098] The isolating switch monitoring device is also provided with an Ethernet port for communicating through a router and an optical fiber box.

[0099] The isolating switch position double confirmation device provided in the embodiments of the present disclosure can execute the isolating switch position double confirmation method provided in any embodiment of the present disclosure, and has the corresponding functional modules and beneficial effects of the execution method.

[0100] Embodiment 3

[0101] Figure 8 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the embodiments of the present disclosure described and / or claimed herein.

[0102] like Figure 8 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0103] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0104] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microprocessor, etc. The processor 11 executes the various methods and processes described above, such as the isolating switch position double confirmation method.

[0105] In some embodiments, the isolating switch position double confirmation method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the isolating switch position double confirmation method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the isolating switch position double confirmation method in any other appropriate manner (e.g., by means of firmware).

[0106] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0107] The computer programs for implementing the methods of the embodiments of the present disclosure may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0108] In the context of the disclosed embodiments, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0109] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0110] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0111] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0112] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in the embodiments of the present disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions of the embodiments of the present disclosure can be achieved, and this document does not limit this.

[0113] The above specific implementations do not constitute a limitation on the protection scope of the embodiments of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the embodiments of the present disclosure shall be included in the protection scope of the embodiments of the present disclosure.

Claims

1. A method for double confirmation of isolating switch position, characterized in that: include: Obtaining the remote signal of the disconnector position and collecting the electric field strength information of the disconnector; wherein the electric field strength information includes the electric field strength signal and the change in electric field strength before and after the operation; the electric field strength signal includes the three-phase electric field strength signals of A, B, and C, and the operation is reverse, closing, opening, or switching; Determine a first judgment result of the disconnector according to the remote signal; Determining a second judgment result of the disconnector according to the electric field strength information includes: when the judgment criteria for determining the electric field strength information are available, if the disconnector has no latent fault, the three-phase synchronization of the electric field strength signal, and the electric field strength change is consistent with the target state, determining that the second judgment result is that the disconnector corresponds to the target state; Determine the position of the disconnector according to the first judgment result and the second judgment result; Verifying the opening and closing synchronicity of the isolating switch according to the electric field strength information; The criterion for determining the electric field strength information is available, including: judging whether the disconnector has a latent fault according to the vibration signal and the electric field strength signal through a fault monitoring device; A corresponding relationship database is established according to the corresponding relationship between the electric field strength change amount and the target state under different working conditions; wherein the corresponding relationship between the electric field strength change amount and the target state includes: the corresponding relationship between the electric field strength change amount and from separation to combination, and the corresponding relationship between the electric field strength change amount and from combination to separation; Wherein, if the target state is from open to closed, determining whether the electric field strength change is consistent with the target state according to the charged state of the three conductors of the disconnector includes: If before the operation, the first conductor segment is charged and the third conductor segment is charged, the electric field strength signal is greater than the threshold value, and the electric field strength change is less than the first threshold value, then the electric field strength change is consistent with the target state; If before the operation, the first conductor segment is electrified and the third conductor segment is not electrified, and the change in the electric field strength is greater than the first threshold value and less than the second threshold value, then the change in the electric field strength is consistent with the target state; If before the operation, the first conductor segment is not electrified and the third conductor segment is electrified, and the change in the electric field strength is greater than the first threshold value and less than the third threshold value, then the change in the electric field strength is consistent with the target state; If the first conductor segment is not electrified and the third conductor segment is not electrified before the operation, and the change in the electric field strength is less than a fourth threshold value, then the change in the electric field strength is consistent with the target state; The first conductor is a conductor connecting the disconnector and the line-side equipment, the second conductor is a movable component of the disconnector, and the third conductor is a conductor connecting the disconnector and the bus-side equipment.

2. The method according to claim 1, characterized in that The determining the position of the isolating switch according to the first judgment result and the second judgment result includes: If the first judgment result is that the isolating switch corresponds to the target state, and the second judgment result is that the isolating switch corresponds to the target state, then the position of the isolating switch is determined to be the position corresponding to the target state.

3. The method according to claim 1, characterized in that The electric field strength information is collected by an isolating switch monitoring device, and the isolating switch monitoring device is installed in an intelligent electronic device IED cabinet within a set range around the isolating switch.

4. The method according to claim 3, characterized in that The isolating switch monitoring device is provided with a sensor interface for acquiring the electric field strength signal; The isolating switch monitoring device is also provided with an Ethernet port for communicating through a router and an optical fiber box.

5. A dual confirmation device for isolating switch position, characterized in that: include: A signal acquisition module is used to obtain the remote signal of the disconnector position and collect the electric field strength information of the disconnector; wherein the electric field strength information includes the electric field strength signal and the change in electric field strength before and after the operation; the electric field strength signal includes the three-phase electric field strength signals of A, B, and C, and the operation is reverse, closing, opening, or switching; A first judgment module, used to determine a first judgment result of the disconnector according to the remote signal; A second judgment module, used to determine a second judgment result of the isolation switch according to the electric field strength information; The second judgment module is specifically configured to determine that the second judgment result is that the disconnector corresponds to the target state if the judgment criterion for determining the electric field strength information is available, and if the disconnector has no latent fault, the three-phase synchronization of the electric field strength signal, and the electric field strength change is consistent with the target state; A position determination module, used to determine the position of the disconnector according to the first judgment result and the second judgment result; A verification module, used to verify the synchronicity of the opening and closing of the disconnector according to the electric field strength information; The criterion for determining the electric field strength information is available, including: judging whether the disconnector has a latent fault according to the vibration signal and the electric field strength signal through a fault monitoring device; An establishment module is used to establish a corresponding relationship database according to the corresponding relationship between the electric field strength change amount and the target state under different working conditions; wherein the corresponding relationship between the electric field strength change amount and the target state includes: the corresponding relationship between the electric field strength change amount and from separation to combination, and the corresponding relationship between the electric field strength change amount and from combination to separation; A consistency judgment module, for determining whether the electric field strength variation is consistent with the target state according to the charged state of the three conductors of the disconnector if the target state is changed from open to closed; The consistency judgment module is specifically used for: If before the operation, the first conductor segment is charged and the third conductor segment is charged, the electric field strength signal is greater than the threshold value, and the electric field strength change is less than the first threshold value, then the electric field strength change is consistent with the target state; If before the operation, the first conductor segment is electrified and the third conductor segment is not electrified, and the change in the electric field strength is greater than the first threshold value and less than the second threshold value, then the change in the electric field strength is consistent with the target state; If before the operation, the first conductor segment is not electrified and the third conductor segment is electrified, and the change in the electric field strength is greater than the first threshold value and less than the third threshold value, then the change in the electric field strength is consistent with the target state; If the first conductor segment is not electrified and the third conductor segment is not electrified before the operation, and the change in the electric field strength is less than a fourth threshold value, then the change in the electric field strength is consistent with the target state; The first conductor is a conductor connecting the disconnector and the line-side equipment, the second conductor is a movable component of the disconnector, and the third conductor is a conductor connecting the disconnector and the bus-side equipment.

6. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the disconnector position double confirmation method as claimed in any one of claims 1 to 4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the isolating switch position double confirmation method as described in any one of claims 1 to 4 is implemented.

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