Substation isolation switch state determination method, electronic equipment and storage medium

Abstract

The invention discloses a state determination method for a substation disconnecting switch, electronic equipment and a storage medium. The state determination method comprises the following steps: acquiring current data of the disconnecting switch; performing correlation correspondence on the current data and time to form a time sequence data set; and determining the state of the disconnecting switch according to the change trend of the current data from the starting moment to the ending moment in the time sequence data set and the size of the current data. According to the technical scheme provided by the embodiment of the invention, the current data of the disconnecting switch is acquired, the current data and the time are associated and corresponded to form the time sequence data set, and the state of the disconnecting switch is determined according to the change trend of the current data from the starting moment to the ending moment in the time sequence data set and the size of the current data. According to the technical scheme, through systematic data collection and analysis, the operation safety, the maintenance efficiency and the intelligent level of the disconnecting switch can be remarkably improved, and a guarantee is provided for the reliability of a power system.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and in particular to a state determination method, electronic equipment and storage medium for a transformer substation disconnector. Background Art

[0002] In power systems, disconnectors are used in power transmission and distribution networks to ensure safe maintenance and operation of equipment.

[0003] In terms of isolating switch motor current acquisition hardware, although the existing technology has provided a variety of industrialized acquisition and transmission modules, these hardware have not established effective support at key nodes such as data collection, transmission and storage, resulting in inaccurate monitoring of the isolating switch status and low data processing efficiency. Summary of the invention

[0004] The invention provides a state determination method of a transformer substation isolating switch, electronic equipment and storage medium, so as to solve the problems of inaccurate isolating switch state monitoring and low data processing efficiency in the prior art.

[0005] According to one aspect of the present invention, a method for determining the state of a substation disconnector is provided, comprising:

[0006] Get the current data of the isolating switch;

[0007] Associating the current data with time to form a time series data set;

[0008] The state of the isolating switch is determined according to a change trend of the current data from a start time to an end time in the time series data set and the magnitude of the current data.

[0009] Optionally, the current data is associated with the time data to form a time series data set, including:

[0010] Multiple current values ​​in the current data are time-stamped to form a time series data set.

[0011] Optionally, determining the state of the isolating switch according to a change trend of the current data from a start time to an end time in the time series data set and the magnitude of the current data includes:

[0012] Determining whether the isolating switch is in a closed state according to whether the current data exceeds a closed state threshold;

[0013] Whether dynamic interference exists is determined according to the change trend of the current data.

[0014] Optionally, determining whether dynamic interference exists according to a change trend of the current data includes:

[0015] If the difference between the current data of at least two adjacent time intervals is greater than the dynamic interference threshold, it is determined that dynamic interference exists.

[0016] Optionally, obtain current data of the disconnector, including:

[0017] A current sensor is arranged inside the motor of the isolating switch to obtain the current data.

[0018] Optionally, after determining that dynamic interference exists, the method further includes:

[0019] Adjust the settings of the current sensor or add a filter to filter out dynamic interference.

[0020] Optionally, determining the state of the isolating switch according to a change trend of the current data from a start time to an end time in the time series data set and the magnitude of the current data includes:

[0021] If the plurality of current data sorted by time show a downward trend, it is determined that the back electromotive force generated by the internal winding of the motor of the isolation switch cancels out the original electromotive force.

[0022] Optionally, determining the state of the isolating switch according to a change trend of the current data from a start time to an end time in the time series data set and the magnitude of the current data includes:

[0023] According to whether the current data exceeds a preset abnormal state threshold, it is determined whether the isolation switch is in a normal state or an abnormal state. According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0024] At least one processor; and 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 state determination method of the substation disconnector described in any embodiment of the present invention.

[0025] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the state determination method of a substation disconnector according to any embodiment of the present invention when executed.

[0026] The technical solution of the embodiment of the present invention obtains the current data of the disconnector and associates the current data with time to form a time series data set, and determines the state of the disconnector according to the change trend of the current data from the start time to the end time in the time series data set and the size of the current data. Through systematic data collection and analysis, the technical solution can significantly improve the operating safety, maintenance efficiency and intelligence level of the disconnector, and provide guarantee for the reliability of the power system.

[0027] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 is a flow chart of a method for determining the state of a substation disconnector provided in an embodiment of the present invention;

[0030] Figure 2 is a flow chart of another method for determining the state of a substation disconnector provided in an embodiment of the present invention;

[0031] Figure 3 The present invention is a schematic diagram of the structure of an electronic device for implementing the method for determining the state of a transformer substation disconnector according to an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention 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 interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and their variations 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 clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] Figure 1 The flowchart of a method for determining the state of a substation isolating switch provided according to an embodiment of the present invention is applicable to real-time monitoring and management of a substation. The method can be executed by a state determination device for a substation isolating switch. The state determination device can be implemented in the form of hardware and / or software, and the state determination device can be configured in a computer device. Figure 1 As shown, the method includes:

[0035] S110, obtaining current data of the isolating switch.

[0036] In an embodiment of the present invention, an isolating switch is a switch device used in a power system, mainly used for the isolation and safe maintenance of electrical equipment. An isolating switch usually has an obvious switch status indication, which can clearly display the working status of the device. For example, the isolating switch can indicate whether the device is open or closed, which is convenient for detection during operation. Current data refers to the current measurement value generated by the substation isolating switch during operation.

[0037] Obtain the current data of the isolating switch. Specifically, collect the current information of the isolating switch in real time through sensors or monitoring equipment to provide basic data for subsequent analysis.

[0038] S120 , associating the current data with time to form a time series data set.

[0039] In the embodiment of the present invention, time refers to a specific moment or time period associated with the disconnector current data; these time information are used to record and identify the moment when each current measurement value is collected. A time series data set refers to a data set consisting of current data and corresponding time information, which can show the change of current over time.

[0040] The collected current data is combined with the corresponding time to form a time series data set. The time series data set can clearly show the changes in current values ​​at different time points, so that each current value has a time mark for easy analysis.

[0041] S130, determining the state of the disconnector according to the change trend of the current data from the start time to the end time in the time series data set and the size of the current data.

[0042] In an embodiment of the present invention, the start time refers to the starting point of the time period selected when performing current data analysis; that is, the starting position of the time series data set. The end time refers to the end point of the time period selected when performing current data analysis; that is, the end position of the time series data set. The start time and the end time together define a time range for observing the current changes of the isolating switch within this time period. The changing trend of the current data refers to the increase or decrease of the current data within a certain time range, which is used to analyze the working state of the isolating switch. The state of the isolating switch refers to the working state of the isolating switch. Optionally, the working state of the isolating switch includes open, closed or faulty.

[0043] By analyzing the change trend of the current data in the time series data set, for example, the change trend of the current data can be rising, falling or maintaining stability. According to the change trend of the current data in the time series data set, combined with the absolute value of the current value, the actual working state of the disconnector is comprehensively judged to identify whether it is operating normally.

[0044] For example, assuming that the Y0 current data corresponding to moment X0 is 2.5A, the Y1 current data corresponding to moment X1 is 3.0A, the Y2 current data corresponding to moment X2 is 2.8A, the Y3 current data corresponding to moment X3 is 3.2A, the Y4 current data corresponding to moment X4 is 3.1A, and the Y5 current data corresponding to moment X5 is 2.9A, by observing the changes in the current data during the switching action, it can be seen that from moment X0 to moment X5, the current data first gradually increases from 2.5A to 3.2A, and then slightly decreases to 2.9A at moment X5. This change can reflect the current change trend during the switching action, and then judge the working state and health of the switch.

[0045] Optionally, the state of the isolating switch is determined based on the changing trend of the current data from the start time to the end time in the time series data set and the size of the current data, including: if multiple current data sorted by time show a downward trend, it is determined that the back electromotive force generated by the internal winding of the motor of the isolating switch offsets the original electromotive force.

[0046] In the embodiment of the present invention, the isolating switch includes a motor inside, and its working principle is based on electromagnetic induction. When the motor rotates, the internal winding generates an electromotive force in the magnetic field. This electromotive force is called back electromotive force. If the magnitude of the back electromotive force is equal to the original electromotive force and the direction is opposite, they will cancel each other out, resulting in a decrease in the current in the motor.

[0047] Specifically, when the motor inside the disconnector rotates, the electromotive force E of the motor can be calculated using the following formula:

[0048] E=E back +E applied

[0049] Where, E is the electromotive force of the motor, E back The back electromotive force generated by the internal winding of the motor, E applied It is the external electromotive force applied to the motor.

[0050] When the back electromotive force E generated by the internal winding of the motor back The external electromotive force E applied to the motor applied When they are equal and opposite, that is, E back =-E applied , the current I flowing through the motor inside the isolating switch will drop to zero, and the calculation formula is as follows:

[0051] I=(E back +E applied ) / R=0

[0052] Where I is the current flowing through the motor inside the isolating switch, and R is the resistance of the motor inside the isolating switch.

[0053] Optionally, the state of the isolating switch is determined based on the change trend of the current data from the start time to the end time in the time series data set and the size of the current data, including: determining whether the isolating switch is in a normal or abnormal state based on whether the current data exceeds a preset abnormal state threshold.

[0054] In an embodiment of the present invention, the preset abnormal state threshold refers to a preset current value limit interval, which is used to determine whether the disconnector is in an abnormal state; when the current data is not within this threshold limit interval, it indicates that there may be a fault or abnormal working condition.

[0055] By comparing the current data with the preset abnormal state threshold, the working state of the disconnector can be objectively judged, potential problems can be discovered in time, and the safe operation of the power system can be ensured. For example, the abnormal state threshold is set to 2.5A to 3.0A. If the monitored current values ​​Y0, Y1, Y2, Y3, Y4 or Y5 are all within the range of 2.5A to 3.0A during the time from X0 to X5, it can be judged that the equipment is working normally. If at least one of the current values ​​exceeds the range of 2.5A to 3.0A, it can be judged that there is a problem with the working condition of the equipment and further inspection and maintenance are required.

[0056] Exemplarily, the severity of the abnormality can be graded according to different abnormal state thresholds. For example, the following abnormal state thresholds are set: normal working state: current value is between 2.5A and 3.0A; slight abnormal state: current value is between 3.0A and 3.5A; severe abnormal state: current value exceeds 3.5A; different strategies are adopted according to different levels of abnormal state.

[0057] The technical solution of the embodiment of the present invention obtains the current data of the disconnector and associates the current data with time to form a time series data set, and determines the state of the disconnector according to the change trend of the current data from the start time to the end time in the time series data set and the size of the current data. Through systematic data collection and analysis, the technical solution can significantly improve the operating safety, maintenance efficiency and intelligence level of the disconnector, and provide guarantee for the reliability of the power system.

[0058] Figure 2 1 is a flow chart of another method for determining the state of a substation disconnector according to an embodiment of the present invention. Figure 2 As shown, the method includes:

[0059] S210, obtaining current data of the isolating switch.

[0060] S220 , time-stamping multiple current values ​​in the current data to form a time series data set.

[0061] In the embodiment of the present invention, time tagging refers to assigning a specific time mark to each current value, indicating the exact time when the current value is collected.

[0062] By time-stamping the current data, it is possible to ensure that the construction of the time series data set follows the order of time, which is convenient for subsequent observation of the current change trend. For example, each moment in the time range of X0-X5 is marked as X0, X1, X2, X3, X4 and X5, respectively, and the current value at each moment is time-stamped as Y0, Y1, Y2, Y3, Y4 and Y5, respectively, to form a time series data set.

[0063] S230. Determine whether the isolating switch is in a closed state according to whether the current data exceeds a closed state threshold.

[0064] In an embodiment of the present invention, the closing state threshold refers to a preset current value limit, which is used to determine whether the disconnector is in a closed state; when the current data exceeds this threshold, it can be inferred that the switch is in a closed state; the setting of the closing state threshold should take into account the characteristics of the equipment and the operating environment to ensure that the judgment of the closing state has sufficient sensitivity and accuracy to avoid misjudgment or missed judgment; illustratively, the closing state threshold is 3.0A.

[0065] According to whether the current data exceeds the closing state threshold, the actual working state of the disconnector can be simply and effectively determined, providing data support for subsequent operation and maintenance. For example, the closing state threshold is set to 3.0A. If at a certain moment from X0 to X5, at least one of the monitored current values ​​Y0, Y1, Y2, Y3, Y4 or Y5 exceeds 3.0A, it can be determined as a closing state.

[0066] S240: Determine whether dynamic interference exists according to a change trend of the current data.

[0067] In the embodiment of the present invention, dynamic interference refers to current measurement fluctuations or anomalies caused by external factors during the operation of the power system, for example, equipment failure, environmental changes or improper operation; the current collection of the motor inside the disconnector is usually sampled by connecting cables in parallel. This method will cause dynamic interference to the complete transmission process of the equipment, thereby causing the collected data to be not objective enough.

[0068] By analyzing the changing trend of current data, abnormal current fluctuations can be identified, and whether dynamic interference exists can be quickly identified.

[0069] Optionally, determining whether dynamic interference exists according to a change trend of the current data includes: determining that dynamic interference exists if a difference between current data in at least two adjacent time intervals is greater than a dynamic interference threshold.

[0070] In the embodiment of the present invention, the dynamic interference threshold refers to a preset numerical limit, which is usually set according to the device characteristics and the operating environment; if the difference in current data exceeds this threshold, it is considered that the device has dynamic interference.

[0071] The calculation of the current data difference between adjacent time intervals can effectively indicate the magnitude of current change. Setting the dynamic interference threshold and monitoring the difference can quickly identify dynamic interference in the current data, providing important early warning and decision support for the safe operation of the power system.

[0072] Exemplarily, the dynamic interference threshold is set to 0.5 A. If the current value changes by more than 0.5 A at a certain moment from X0 to X5, it is determined that dynamic interference exists.

[0073] Optionally, obtain current data of the disconnector, including:

[0074] A current sensor is arranged inside the motor of the isolating switch to obtain current data.

[0075] In the embodiment of the present invention, the motor of the isolating switch refers to the motor used to drive the switch action in the isolating switch, which is responsible for controlling the switch state of the isolating switch. The current sensor refers to a device for measuring current, which can monitor the change of the current inside the motor in real time and convert it into current data for analysis. Optionally, the current sensor is a current sensor based on the Modbus protocol.

[0076] By installing a current sensor inside the motor of the isolating switch, the operating status of the motor can be monitored in real time, and current data can be obtained in a timely manner, which is convenient for evaluating the performance and status of the motor.

[0077] Optionally, after determining that dynamic interference exists, the method further includes:

[0078] Adjust the current sensor settings or add filters to filter out dynamic interference.

[0079] In the embodiment of the present invention, a filter refers to an electronic device or circuit used to remove noise or interference in a signal and retain the required signal components. The filter can be in the form of hardware or software.

[0080] By optimizing the installation position, sensitivity and other parameters of the current sensor, its response to normal current signals can be improved, sensitivity to dynamic interference can be reduced, and the measurement results can be more accurate. Using filters can effectively remove dynamic interference components in current signals, making the output signal smoother. Filters can filter out high-frequency noise, retain low-frequency valid signals, and improve data quality.

[0081] The technical solution of the embodiment of the present invention can directly reflect the health of the isolating switch in different working conditions. Through systematic current data collection and analysis, it not only improves the operating safety and reliability of the isolating switch, but also provides data support for the intelligent management of the power system. By comparing the current data with the closing state threshold, the technical solution can accurately judge the closing state of the isolating switch, reduce the possibility of human misjudgment, and improve the reliability of equipment management. By monitoring the changing trend of the current data, it is possible to timely identify whether there is dynamic interference in the isolating switch, ensuring that the equipment operates in a safe and stable state.

[0082] Figure 3 1 is a schematic diagram of the structure of an electronic device for implementing the method for determining the state of a substation disconnector according to an embodiment of the present invention. Figure 3 As shown, the device includes: at least one processor; and a memory connected in communication with the at least one processor;

[0083] Among them, the memory stores a computer program that can be executed by at least one processor, and the computer program is executed by at least one processor so that at least one processor can execute the state determination method of the substation disconnector provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0084] Figure 3 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention 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 electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0085] like Figure 3As 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.

[0086] 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.

[0087] 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, microcontroller, etc. The processor 11 performs the various methods and processes described above.

[0088] In some embodiments, the state determination method of the substation isolating switch 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 state determination method of the substation isolating switch described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the state determination method of the substation isolating switch in any other appropriate manner (e.g., by means of firmware).

[0089] 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.

[0090] Computer programs for implementing the methods of the present invention 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 and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0091] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination 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.

[0092] 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).

[0093] 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.

[0094] 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.

[0095] 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 described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0096] The above specific implementations do not constitute a limitation on the protection scope of the present invention. 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 modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining the state of a transformer substation disconnector, characterized in that: include: Get the current data of the disconnector; Associating the current data with time to form a time series data set; The state of the isolating switch is determined according to a change trend of the current data from a start time to an end time in the time series data set and the magnitude of the current data.

2. The method according to claim 1, characterized in that The current data is associated with the time data to form a time series data set, including: Multiple current values ​​in the current data are time-stamped to form a time series data set.

3. The method according to claim 1, characterized in that Determining the state of the isolating switch according to the change trend of the current data from the start time to the end time in the time series data set and the magnitude of the current data includes: Determining whether the isolating switch is in a closed state according to whether the current data exceeds a closed state threshold; Whether dynamic interference exists is determined according to the change trend of the current data.

4. The method according to claim 3, characterized in that Determining whether dynamic interference exists according to the change trend of the current data includes: If the difference between the current data of at least two adjacent time intervals is greater than the dynamic interference threshold, it is determined that dynamic interference exists.

5. The method according to claim 1, 3 or 4, characterized in that: Get current data of the disconnect switch, including: A current sensor is arranged inside the motor of the isolating switch to obtain the current data.

6. The method according to claim 5, characterized in that After determining the presence of dynamic interference, it also includes: Adjust the settings of the current sensor or add a filter to filter out dynamic interference.

7. The method according to claim 1, characterized in that Determining the state of the isolating switch according to the change trend of the current data from the start time to the end time in the time series data set and the magnitude of the current data includes: If the plurality of current data sorted by time show a downward trend, it is determined that the back electromotive force generated by the internal winding of the motor of the isolation switch cancels out the original electromotive force.

8. The method according to claim 1, characterized in that: Determining the state of the isolating switch according to the change trend of the current data from the start time to the end time in the time series data set and the magnitude of the current data includes: Whether the isolating switch is in a normal state or an abnormal state is determined according to whether the current data exceeds a preset abnormal state threshold.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and 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 state determination method of the substation disconnector according to any of claims 1-8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the state determination method of a substation disconnector according to any one of claims 1 to 8 when executed.

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