Capacitor monitoring method, electronic device, storage medium and program product

Abstract

The embodiment of the invention provides a capacitor monitoring method, electronic equipment, a storage medium and a program product. The method comprises the following steps: acquiring power-on and power-off parameters which are acquired by a detection module and are related to a capacitor, and when determining that the capacitor is powered off based on the power-on and power-off parameters, controlling a path between the capacitor and a discharge resistor in a discharge module to be switched on so as to trigger discharge of the capacitor; and when the received first current is greater than the preset current and / or the environment temperature is greater than the preset environment temperature in the process of conducting the access between the capacitor and the discharge module, the access between the capacitor and the discharge module is controlled to be disconnected. The method is used for achieving the effects of high capacitor discharging efficiency and high safety.

Description

Technical Field

[0001] This application relates to the field of power grid systems, and more particularly to a capacitor monitoring method, electronic device, storage medium, and program product. Background Technology

[0002] To maintain power grid stability, substations and power plants compensate for reactive power by energizing capacitors. When reactive power is sufficient, the capacitors are de-energized to avoid over-compensation. If capacitors are de-energized and then re-energized without being fully discharged, the charge within the capacitors may be released instantaneously, leading to excessive current, abnormal temperature rise, and capacitor failure. This, in turn, can result in widespread power outages or damage to electrical equipment due to insufficient reactive power. Therefore, it is necessary to discharge capacitors after de-energization.

[0003] In related technologies, capacitors are discharged by manually connecting them to a discharge rod or a discharge resistor.

[0004] However, the above-mentioned methods of artificial discharge are inefficient and unsafe. Summary of the Invention

[0005] This application provides a capacitor monitoring method, electronic device, storage medium, and program product to achieve high capacitor discharge efficiency and high safety.

[0006] In a first aspect, embodiments of this application provide a capacitor monitoring method, including:

[0007] Acquire the on / off parameters related to the capacitor collected by the detection module;

[0008] In response to determining that the capacitor is de-energized based on the on / off parameters, the circuit between the capacitor and the discharge module is controlled to be turned on, wherein the discharge module is used to discharge the capacitor;

[0009] The first current and ambient temperature passing through the discharge module during the discharge process are obtained;

[0010] In response to the first current being greater than a preset current, and / or the ambient temperature being greater than a preset ambient temperature, the circuit between the capacitor and the discharge module is disconnected.

[0011] In one possible implementation, the power-on / off parameters include the voltage of the capacitor, a second current, and the state of the power supply switch of the capacitor; wherein the second current represents the current flowing through the capacitor;

[0012] In one possible implementation, the step of determining the capacitor de-energized based on the on / off parameters includes:

[0013] In response to the power on / off parameters indicating that the voltage and the second current are both below their respective preset thresholds, and the power supply switch is in the off state, it is determined that the capacitor is de-energized.

[0014] In one possible implementation, it also includes,

[0015] In response to the capacitor's discharge duration being greater than or equal to a preset duration threshold, the connection between the capacitor and the discharge module is disconnected.

[0016] In one possible implementation, it also includes:

[0017] Acquire one or more of the following parameters: environmental parameters, capacitor's own temperature parameters, deformation parameters, and foreign object detection parameters;

[0018] Based on the environmental parameters, the capacitor's own temperature parameters, the deformation parameters, and the foreign object detection parameters, determine whether the following abnormalities exist:

[0019] Abnormal environment, abnormal capacitor temperature, abnormal deformation, and abnormal foreign objects.

[0020] In one possible implementation, the capacitor bank containing the capacitor includes multiple capacitor units, each capacitor unit including multiple capacitors; the environmental parameters include a first temperature and a first humidity characterizing the environment in which the capacitor bank is located; the capacitor's own temperature parameter characterizes the highest temperature among the individual temperatures of each capacitor in the capacitor bank; the deformation parameter is a first infrared light signal passing through the periphery of the capacitor unit; and the foreign object detection parameter is a second infrared light signal passing through the periphery of the capacitor bank.

[0021] In one possible implementation, determining whether the following anomalies exist based on the environmental parameters, the capacitor's own temperature parameters, the deformation parameters, and the foreign object detection parameters: environmental anomalies, capacitor's own temperature anomalies, deformation anomalies, and foreign object anomalies, includes:

[0022] The relative temperature difference ratio of the capacitor bank is determined based on the first temperature and the temperature parameters of the capacitor itself.

[0023] If the relative temperature difference ratio of the capacitor bank is not within the preset range, it is determined that the capacitor temperature of at least one capacitor in the capacitor bank is abnormal.

[0024] If the initial humidity level is higher than the preset humidity level, then an environmental anomaly is identified.

[0025] If the intensity of the first infrared light signal is less than the first preset signal threshold, then it is determined that there is a deformation anomaly;

[0026] If the intensity of the second infrared light signal is less than the second preset signal threshold, then it is determined that there is a foreign object abnormality.

[0027] In one possible implementation, it also includes:

[0028] In response to the detection of an anomaly, an alarm message is issued, the alarm message indicating the type of anomaly.

[0029] Secondly, embodiments of this application provide a capacitor monitoring device, comprising:

[0030] The first acquisition module is used to acquire the on / off parameters related to the capacitor collected by the detection module;

[0031] A first control module is configured to control the connection between the capacitor and the discharge module in response to determining that the capacitor is de-energized based on the on / off parameters, wherein the discharge module is configured to discharge the capacitor.

[0032] The second acquisition module is used to acquire the first current and ambient temperature passing through the discharge module during the discharge process.

[0033] The second control module is used to control the connection between the capacitor and the discharge module to be disconnected in response to the first current being greater than a preset current and / or the ambient temperature being greater than a preset ambient temperature.

[0034] In one possible implementation, the power-on / off parameters include the voltage of the capacitor, a second current, and the state of the power supply switch of the capacitor; wherein the second current represents the current flowing through the capacitor;

[0035] In one possible implementation, the "response to determine the capacitor de-energization based on the on / off parameters" in the first control module is specifically used for:

[0036] In response to the power on / off parameters indicating that the voltage and the second current are both below their respective preset thresholds, and the power supply switch is in the off state, it is determined that the capacitor is de-energized.

[0037] In one possible implementation, the device is further used to,

[0038] In response to the capacitor's discharge duration being greater than or equal to a preset duration threshold, the connection between the capacitor and the discharge module is disconnected.

[0039] In one possible implementation, the device is further used for:

[0040] Acquire one or more of the following parameters: environmental parameters, capacitor's own temperature parameters, deformation parameters, and foreign object detection parameters;

[0041] Based on the environmental parameters, the capacitor's own temperature parameters, the deformation parameters, and the foreign object detection parameters, determine whether the following abnormalities exist:

[0042] Abnormal environment, abnormal capacitor temperature, abnormal deformation, and abnormal foreign objects.

[0043] In one possible implementation, the capacitor bank containing the capacitor includes multiple capacitor units, each capacitor unit including multiple capacitors; the environmental parameters include a first temperature and a first humidity characterizing the environment in which the capacitor bank is located; the capacitor's own temperature parameter characterizes the highest temperature among the individual temperatures of each capacitor in the capacitor bank; the deformation parameter is a first infrared light signal passing through the periphery of the capacitor unit; and the foreign object detection parameter is a second infrared light signal passing through the periphery of the capacitor bank.

[0044] In one possible implementation, the device's function of "determining whether the following anomalies exist based on the environmental parameters, the capacitor's own temperature parameters, the deformation parameters, and the foreign object detection parameters: environmental anomaly, capacitor's own temperature anomaly, deformation anomaly, and foreign object anomaly" is specifically used for:

[0045] The relative temperature difference ratio of the capacitor bank is determined based on the first temperature and the temperature parameters of the capacitor itself.

[0046] If the relative temperature difference ratio of the capacitor bank is not within the preset range, it is determined that the capacitor temperature of at least one capacitor in the capacitor bank is abnormal.

[0047] If the initial humidity level is higher than the preset humidity level, then an environmental anomaly is identified.

[0048] If the intensity of the first infrared light signal is less than the first preset signal threshold, then it is determined that there is a deformation anomaly;

[0049] If the intensity of the second infrared light signal is less than the second preset signal threshold, then it is determined that there is a foreign object abnormality.

[0050] In one possible implementation, the device is further used for:

[0051] In response to the detection of an anomaly, an alarm message is issued, the alarm message indicating the type of anomaly.

[0052] Thirdly, embodiments of this application provide an electronic device, including: a memory and a processor;

[0053] The memory stores computer-executed instructions;

[0054] The processor executes computer execution instructions stored in the memory, causing the processor to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0055] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the first aspect and / or various possible implementations of the first aspect.

[0056] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the first aspect and / or various possible implementations of the first aspect.

[0057] The capacitor monitoring method, electronic device, storage medium, and program product provided in this application acquire capacitor-related on / off parameters collected by the detection module. When the capacitor is de-energized based on the on / off parameters, the system controls the connection between the capacitor and the discharge resistor in the discharge module to trigger the capacitor discharge. During the connection process between the capacitor and the discharge module, if the received first current is greater than a preset current and / or the ambient temperature is greater than a preset ambient temperature, the system controls the connection between the capacitor and the discharge module to be disconnected. This allows for discharge without manual operation. Furthermore, if overcurrent and / or excessive temperature occur in the discharge path during the capacitor discharge process, the discharge is stopped. Therefore, the system is highly efficient and safe. Attached Figure Description

[0058] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0059] Figure 1 A flowchart illustrating a capacitor monitoring method provided in this application;

[0060] Figure 2 A schematic diagram of a discharge device provided in this application, which is connected to a server and a capacitor respectively;

[0061] Figure 3 A flowchart illustrating another capacitor monitoring method provided in this application;

[0062] Figure 4 A schematic diagram showing the structure of another discharge device provided in this application connected to a server and a capacitor respectively;

[0063] Figure 5 This application provides a schematic diagram of the structure of a capacitor monitoring device.

[0064] Figure 6 A top view of the infrared transmitter and receiver used to obtain the deformation parameters of a capacitor, as provided in this application;

[0065] Figure 7 A schematic diagram of another capacitor monitoring device provided in this application;

[0066] Figure 8 A schematic diagram of the structure of the electronic device provided in this application.

[0067] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0068] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0069] To ensure the stable operation of the power grid, power supply systems such as substations and power plants typically compensate for reactive power by connecting capacitors. When the system's reactive power is sufficient, the capacitors are de-energized to prevent over-compensation. However, if power is restored to the capacitors before they are fully discharged, the residual charge inside may be released instantaneously, causing a surge in current and abnormal temperature rise, potentially leading to capacitor failure, such as deformation or explosion. Such failures can result in insufficient reactive power in the power grid, causing widespread power outages or damage to electrical equipment, such as transformers, circuit breakers, and users' lighting and electronic devices. Therefore, capacitors need to be discharged after being de-energized.

[0070] In one example, after the capacitor is de-energized, it can be discharged by manually connecting it to a discharge rod or discharge resistor and then grounding it.

[0071] However, this method of artificial discharge is inefficient and unsafe.

[0072] This application provides a capacitor monitoring method, electronic device, storage medium, and program product to solve the above-mentioned technical problems.

[0073] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0074] Figure 1 This is a flowchart illustrating a capacitor monitoring method provided in this application, as shown below. Figure 1 As shown, the method includes:

[0075] S101. Obtain the on / off parameters related to the capacitor collected by the detection module.

[0076] In one example, the on / off parameters include the capacitor voltage, the second current, and the state of the capacitor's power supply switch; wherein the second current represents the current flowing through the capacitor.

[0077] For example, the executing entity of this embodiment can be any device among servers, distributed systems, terminal devices, other electronic devices / computer devices, and other apparatuses or devices that can implement the solution of this application, without limitation. The server can be a standalone server or a server cluster, such as, but not limited to, any form of cloud server, distributed server, blockchain server, etc.

[0078] The embodiments in this application are all described with the server as the executing entity.

[0079] For example, Figure 2 This application provides a schematic diagram of a discharge device connected to a server and a capacitor, as shown below. Figure 2 As shown, the capacitor discharge device includes a detection module 201, a discharge module 202, a protection module 203, and a discharge switch 204. The detection module 201 is communicatively connected to the server 205 and the capacitor 206. One end of the discharge switch 204 is communicatively connected to the server 205 and the capacitor 206, and the other end is communicatively connected to the protection module 203. The protection module 203 is also communicatively connected to the discharge module 202, and the other end of the discharge module 202 can be grounded.

[0080] The discharge module 202 may include a discharge resistor and a diode, wherein the diode is used to control the current to flow only from the protection module 2303 to the diode, so as to avoid generating reverse current.

[0081] The detection module 201 may include a voltage transformer and a circuit transformer, which are used to collect the voltage and second current of the capacitor 206 and send them to the server 205, respectively. The second current refers to the current passing through the capacitor 206.

[0082] S102. In response to determining that the capacitor is de-energized based on the on / off parameters, the circuit between the capacitor and the discharge module is controlled to be turned on, wherein the discharge module is used to discharge the capacitor.

[0083] For example, still refer to Figure 2 When the server 205 determines that the capacitor is de-energized based on the received voltage and the state of the second current, it controls the discharge switch 204 to close, triggering the connection between the capacitor 206 and the discharge resistor in the discharge module 202. The charge in the capacitor 206 is released through the discharge resistor, thereby achieving discharge.

[0084] S103. Obtain the first current and ambient temperature passing through the discharge module during the discharge process.

[0085] For example, still refer to Figure 2 The protection module 203 may include an overcurrent protector and a temperature sensor. During the conduction of the path between the capacitor 206 and the discharge module 202, the overcurrent protector and the temperature sensor are used to collect the first current passing through the protection module 203 and the ambient temperature, respectively, and send them to the server 205.

[0086] The protection module 203 is also used to disconnect the power to the protection module 203 in response to receiving a power-off command from the server 206, thereby disconnecting the circuit between the capacitor 206 and the discharge module 202.

[0087] S104. In response to the first current being greater than the preset current, and / or the ambient temperature being greater than the preset ambient temperature, the circuit between the control capacitor and the discharge module is disconnected.

[0088] For example, still refer to Figure 2 During the conduction process between capacitor 206 and discharge module 202, if the first current received by server 205 is greater than the preset current, and / or the ambient temperature is greater than the preset ambient temperature, server 205 sends a power-off command to protection module 203 to control protection module 203 to power off, thereby disconnecting the path between capacitor 206 and discharge module 202.

[0089] The capacitor monitoring method provided in this application acquires on / off parameters related to the capacitor collected by the detection module. When the capacitor is de-energized based on the on / off parameters, the method controls the connection between the capacitor and the discharge resistor in the discharge module to trigger the capacitor discharge. During the connection process between the capacitor and the discharge module, if the received first current is greater than a preset current and / or the ambient temperature is greater than a preset ambient temperature, the method controls the connection between the capacitor and the discharge module to be disconnected. This allows for discharge without manual operation. Furthermore, if overcurrent and / or excessive temperature occur in the discharge path during the capacitor discharge process, the discharge is stopped. Therefore, the method is highly efficient and safe.

[0090] Figure 3 A flowchart illustrating another capacitor monitoring method provided in this application is shown below. Figure 3 As shown, the method includes:

[0091] S301. Obtain the on / off parameters related to the capacitor collected by the detection module.

[0092] In one example, the on / off parameters include the capacitor voltage, the second current, and the state of the capacitor's power supply switch; wherein the second current represents the current flowing through the capacitor.

[0093] For example, Figure 4 A schematic diagram of another discharge device provided in this application, connected to a server and a capacitor respectively, is shown below. Figure 4 As shown, the capacitor discharge device includes a detection module 401, a discharge switch 402, a delay module 403, a protection module 404, and a discharge module 405.

[0094] The detection module 401 is communicatively connected to the server 406 and the capacitor 407. The discharge switch 402 is communicatively connected to the server 406 at one end and to the capacitor 407 at the other end. The delay module 403 is communicatively connected to the server 406, the end of the discharge switch 402 furthest from the capacitor 407, and the protection module 404.

[0095] The discharge module 405 can be used Figure 1Based on the discharge module 202 in this embodiment, a normally closed auxiliary contact is added. One end of the normally closed auxiliary contact is communicatively connected to the discharge resistor, and the other end is communicatively connected to the protection module 404, the power supply switch of the capacitor 407, and the server 406, respectively. The status of the normally closed auxiliary contact is sent to the server 406. The status of the normally closed auxiliary contact is opposite to the status of the power supply switch of the capacitor 407 (when the power supply switch of the capacitor 407 is closed, the normally closed auxiliary contact is closed, thus connecting the discharge resistor and the protection module 404; when the power supply switch of the capacitor 407 is open, the normally closed auxiliary contact is open, thus disconnecting the connection between the discharge resistor and the protection module 404).

[0096] The implementation method of detection module 401 and Figure 1 The implementation of the detection module 201 in the embodiment is similar. For details, please refer to the description of the detection module 201, which will not be repeated here.

[0097] It is worth noting that the positions of the protection module 404 and the delay module 403 can also be interchanged, and there is no restriction on this.

[0098] S302, in response to the fact that the voltage and the second current indicated by the power on / off parameters are both lower than their respective preset thresholds, and the power supply switch is in the off state, the capacitor is de-energized, and the circuit between the capacitor and the discharge module is opened.

[0099] The discharge module is used to discharge the capacitor.

[0100] For example, still refer to Figure 4 If the voltage and the second current received by the server 406 are both lower than their respective preset thresholds, and the normally closed auxiliary contact of the switch is in a closed state, then the server determines that the capacitor is de-energized, controls the discharge switch 402 to close, triggers the connection between the capacitor 407 and the discharge module, and the charge in the capacitor 407 is released sequentially through the delay module 403, the protection module 404, and the discharge resistor in the discharge module 405, thereby achieving discharge.

[0101] By determining that the capacitor is de-energized when the received voltage and second current are both below their respective preset thresholds and the normally closed auxiliary contact of the switch is in a closed state, the circuit between the capacitor and the discharge module is opened, thereby discharging the capacitor. This ensures that the capacitor is fully de-energized, that is, when there is only a small amount of residual charge in the capacitor, thus making it safer, causing less damage to circuit components in the power system, improving discharge efficiency, not interfering with the function of the power system, and extending the life of the capacitor.

[0102] S303. Obtain the first current and ambient temperature passing through the discharge module during the discharge process.

[0103] For example, still refer to Figure 4 The protection module 404 may include an overcurrent protector and a temperature sensor. During the conduction of the path between the capacitor 407 and the discharge module 405, the overcurrent protector and the temperature sensor are used to collect the first current passing through the protection module 404 and the ambient temperature, respectively, and send them to the server 406 through the delay module 403.

[0104] The protection module 404 is also used to disconnect the power to the protection module 404 in response to receiving a power-off command from the server 406 via the delay module 403, thereby disconnecting the circuit between the capacitor 407 and the discharge module 405.

[0105] S304. In response to the first current being greater than the preset current, and / or the ambient temperature being greater than the preset ambient temperature, the circuit between the control capacitor and the discharge module is disconnected.

[0106] For example, still refer to Figure 4 During the conduction process between capacitor 407 and discharge module 405, if the first current received by server 406 is greater than the preset current, and / or the ambient temperature is greater than the preset ambient temperature, then server 406 sends a power-off command to protection module 404 through delay module 403 to control protection module 404 to power off, thereby disconnecting the path between capacitor 407 and discharge module 405.

[0107] During the conduction process between the capacitor and the discharge module, if the server receives a first current greater than a preset current and / or the ambient temperature is greater than a preset ambient temperature, it controls the connection between the capacitor and the discharge module to be disconnected. This allows the capacitor to stop discharging if overcurrent and / or excessive temperature occur in the discharge path during the discharge process, thereby preventing damage to circuit components in the discharge path caused by overcurrent and / or excessive temperature, and even preventing safety accidents such as fires.

[0108] S305. In response to the capacitor discharge time being greater than or equal to a preset time threshold, the circuit between the capacitor and the discharge module is disconnected.

[0109] For example, still refer to Figure 4 The delay module 403 may include a timer, which is used to start the timer to record the capacitor discharge duration and send it to the server 406 based on the start timing request sent by the server 406 when the circuit between the capacitor 407 and the discharge module 405 begins to conduct; it is also used to control the delay module 403 to be powered off based on the delay module power-off command sent by the server 406 when the capacitor discharge duration is greater than or equal to a preset duration threshold, thereby disconnecting the circuit between the capacitor 407 and the discharge module 405.

[0110] When the circuit between the capacitor and the discharge module begins to conduct, the server controls the delay module to record the capacitor discharge duration. When the received capacitor discharge duration is greater than or equal to a preset duration threshold, the server controls the circuit between the capacitor and the discharge module to disconnect. This can stop the discharge if the capacitor discharge duration is too long, preventing accidental re-energization during the capacitor discharge process, which could lead to high voltage or high current and cause safety hazards.

[0111] S306. Obtain one or more of the following parameters: environmental parameters, capacitor temperature parameters, deformation parameters, and foreign object detection parameters.

[0112] For example, Figure 5 This application provides a schematic diagram of the structure of a capacitor monitoring device, as shown below. Figure 5 As shown, the capacitor monitoring device includes: a data acquisition and detection module 502, an uninterruptible power supply module 503, a discharge device 504, an alarm device 505, a system operation indicator light 506, a communication module 509, control buttons 508, and an LCD display panel 507. Each of these modules is communicatively connected to a server 501.

[0113] The uninterruptible power supply module 503 may include a backup lithium battery. When the main power supply of the capacitor monitoring device fails, the server can switch the power supply of the capacitor monitoring device to the backup lithium battery in the uninterruptible power supply module 503 to power the capacitor monitoring device, thereby avoiding the capacitor monitoring device from failing to work due to the failure of the main power supply of the capacitor monitoring device.

[0114] The discharge device 504 may include Figure 4 The detection module 401, delay module 403, protection module 404, and discharge module 405 are described in steps S301-S305, and will not be repeated here.

[0115] When the system operation indicator light 506 is turned on, it indicates that the capacitor monitoring device is in working condition; when the system operation indicator light 506 is turned off, it indicates that the capacitor monitoring device is not in working condition.

[0116] The control button 508 can be used to receive instructions input by the user through the control button 508 and send the instructions to the server 501.

[0117] The LCD display panel 507 can be used to display the monitoring data sent to the server 501 by the data acquisition and monitoring module 502.

[0118] In one example, each capacitor bank may include at least one capacitor unit, and each capacitor unit includes at least one capacitor. The data acquisition and detection module 502 may pre-install several sensors on the frame surrounding the capacitor bank to collect one or more of the following parameters: environmental parameters, capacitor temperature parameters, deformation parameters, and foreign object detection parameters, and send them to the server.

[0119] Specifically, the data acquisition and detection module 502 includes an infrared detection submodule 5021, a temperature and humidity sensor 5022, and an infrared temperature sensor 5023.

[0120] For each capacitor bank, the environmental parameters can be the first temperature and first humidity of the surrounding environment of the capacitor bank collected by the temperature and humidity sensor 5022; the capacitor's own temperature parameter can be the highest temperature among the individual capacitors in the capacitor bank collected by the infrared temperature sensor 5023. This embodiment uses the collection of the individual temperatures of each capacitor in a capacitor bank by one infrared temperature sensor 5023 as an example. If the capacitor bank is large, multiple infrared temperature sensors can be used to collect the individual temperatures of each capacitor in a capacitor bank, and there is no limitation on this.

[0121] The infrared detection submodule 5021 is used to acquire deformation parameters and foreign object detection parameters.

[0122] The deformation parameter can be for each capacitor cell in the capacitor bank, where multiple infrared receivers receive multiple first infrared light signals transmitted by their respective infrared emitters, passing through each exterior facade of the capacitor cell; where deformation refers to the expansion deformation caused by capacitor failure.

[0123] In one example, Figure 6 A top view of the infrared transmitter and receiver for acquiring the deformation parameters of a capacitor, as provided in this application, is shown below. Figure 6As shown, the capacitor unit may include five capacitors, namely capacitor one, capacitor two, capacitor three, capacitor four, and capacitor five. At least one infrared emitter 11, at least one infrared emitter 21, at least one infrared receiver 12, at least one infrared emitter 31, at least one infrared receiver 32, at least one infrared receiver 42, at least one infrared receiver 22, and at least one infrared emitter 41 can be installed at the four corners of the frame surrounding the capacitor unit. The deformation parameters include the first infrared light signal 601 sent by the infrared emitter 11 received by at least one infrared receiver 12, the first infrared light signal 602 sent by the infrared emitter 21 received by at least one infrared receiver 22, the first infrared light signal 603 sent by the infrared emitter 31 received by at least one infrared receiver 32, and the first infrared light signal 604 sent by the infrared emitter 41 received by at least one infrared receiver 42.

[0124] Foreign object detection parameters can be multiple second infrared light signals transmitted by their respective infrared transmitters and received by multiple infrared receivers, passing through each facade of the capacitor bank.

[0125] Foreign objects, such as small animals like mice or snakes, could cause short circuits in the capacitor bank. To prevent the second infrared light signal from radiating to maintenance personnel entering the capacitor bank, foreign object detection parameters can be received only at a preset height above the ground.

[0126] S307. Based on environmental parameters, capacitor's own temperature parameters, deformation parameters, and foreign object detection parameters, determine whether the following abnormalities exist: environmental abnormalities, capacitor's own temperature abnormalities, deformation abnormalities, and foreign object abnormalities.

[0127] In one example, the capacitor bank containing the capacitor includes multiple capacitor cells, and each capacitor cell includes multiple capacitors. The environmental parameters include a first temperature and a first humidity that characterize the environment in which the capacitor bank is located; the capacitor's own temperature parameter characterizes the highest temperature among the individual temperatures of each capacitor in the capacitor bank; the deformation parameter is a first infrared light signal passing through the periphery of the capacitor cell; and the foreign object detection parameter is a second infrared light signal passing through the periphery of the capacitor bank.

[0128] In one example, the relative temperature difference ratio of the capacitor bank is determined based on the first temperature and the capacitor's own temperature parameters.

[0129] If the relative temperature difference ratio of the capacitor bank is not within the preset range, it is determined that the temperature of at least one capacitor in the capacitor bank is abnormal.

[0130] If the initial humidity level is higher than the preset humidity level, then an environmental anomaly is identified.

[0131] If the intensity of the first infrared light signal is less than the first preset signal threshold, then it is determined that there is a deformation anomaly.

[0132] If the intensity of the second infrared light signal is less than the second preset signal threshold, then it is determined that there is a foreign object abnormality.

[0133] For example, the server can also obtain the preset average normal temperature of each capacitor in the capacitor bank, and then take the difference between the capacitor's own temperature parameter and the preset average normal temperature as the first temperature rise of the capacitor bank. At the same time, take the difference between the capacitor's own temperature parameter and the first temperature as the second temperature rise of the capacitor's own temperature parameter relative to the ambient temperature, and then divide the first temperature rise by the second temperature rise to obtain the relative temperature difference ratio of the capacitor bank.

[0134] When the relative temperature difference ratio of the capacitor bank is not within the preset range, it is determined that the temperature of at least one capacitor in the capacitor bank is abnormal.

[0135] When the initial humidity exceeds the preset humidity, an environmental anomaly is identified in the capacitor bank.

[0136] When the intensity of at least one first infrared light signal is less than a first preset signal threshold, it is determined that there is a deformation anomaly;

[0137] When the intensity of at least one second infrared light signal is less than a second preset signal threshold, it is determined that there is a foreign object anomaly.

[0138] S308. In response to the detection of an anomaly, an alarm message is issued, indicating the type of anomaly.

[0139] For example, such as Figure 5 As shown, when server 501 detects one or more of the following abnormalities in capacitors: abnormal temperature, abnormal humidity, abnormal deformation, or abnormal foreign object presence, it can generate alarm information through an alarm device and send the alarm information to terminal device 510 for display. The alarm information may include the abnormality category, and may also include device information, coordinates, abnormal parameter values, and standard parameter values ​​for the capacitor bank and / or capacitor unit corresponding to that abnormality category.

[0140] In one example, the alarm information for the deformation anomaly category may include: the anomaly category is deformation anomaly, the device information of the capacitor bank unit that detected the deformation anomaly, the coordinates, the first infrared light signal that is less than the first preset signal threshold, the first preset signal threshold, etc.

[0141] By determining the relative temperature difference of the capacitor bank based on the preset normal temperature of the capacitor, the highest temperature of the capacitor bank, and the first temperature, and then determining the corresponding abnormality category when the relative temperature difference of the capacitor bank, the first humidity, multiple first infrared light signals, and multiple second infrared light signals meet their respective preset conditions, an alarm message is generated and sent to the terminal device for display. This allows for real-time monitoring of whether there are abnormalities in the capacitor bank, and an alarm is triggered on the terminal device when an abnormality occurs, along with the display of the alarm message. This facilitates staff in taking countermeasures to repair the abnormality based on the alarm message.

[0142] Figure 7 This application provides a schematic diagram of the structure of a capacitor monitoring device, as shown below. Figure 7 As shown, the capacitor monitoring device 70 provided in this embodiment includes:

[0143] The first acquisition module 701 is used to acquire the on / off parameters related to the capacitor collected by the detection module;

[0144] The first control module 702 is used to control the connection between the capacitor and the discharge module in response to determining that the capacitor is de-energized based on the on / off parameters, wherein the discharge module is used to discharge the capacitor.

[0145] The second acquisition module 703 is used to acquire the first current and ambient temperature passing through the discharge module during the discharge process.

[0146] The second control module 704 is used to disconnect the circuit between the capacitor and the discharge module in response to the first current being greater than a preset current and / or the ambient temperature being greater than a preset ambient temperature.

[0147] In one possible implementation, the power-on / off parameters include the capacitor voltage, the second current, and the state of the capacitor's power supply switch; wherein the second current represents the current flowing through the capacitor.

[0148] In one possible implementation, the "response to determine capacitor de-energization based on on / off parameters" in the first control module 702 is specifically used for:

[0149] In response to the fact that the voltage and second current indicated by the power on / off parameters are both below their respective preset thresholds, and the power supply switch is in the off state, it is determined that the capacitor is de-energized.

[0150] In one possible implementation, the device 70 is also used for,

[0151] In response to a capacitor discharge duration greater than or equal to a preset duration threshold, the circuit between the capacitor and the discharge module is disconnected.

[0152] In one possible implementation, the device 70 is further used for:

[0153] Acquire one or more of the following parameters: environmental parameters, capacitor's own temperature parameters, deformation parameters, and foreign object detection parameters;

[0154] Based on environmental parameters, capacitor's own temperature parameters, deformation parameters, and foreign object detection parameters, determine whether the following anomalies exist:

[0155] Abnormal environment, abnormal capacitor temperature, abnormal deformation, and abnormal foreign objects.

[0156] In one possible implementation, the capacitor bank containing the capacitor includes multiple capacitor units, each capacitor unit includes multiple capacitors, and the environmental parameters include a first temperature and a first humidity characterizing the environment in which the capacitor bank is located; the capacitor's own temperature parameter characterizes the highest temperature among the individual temperatures of each capacitor in the capacitor bank; the deformation parameter is a first infrared light signal passing through the periphery of the capacitor unit; and the foreign object detection parameter is a second infrared light signal passing through the periphery of the capacitor bank.

[0157] In one possible implementation, the function of device 70, which "determines whether the following anomalies exist based on environmental parameters, capacitor self-temperature parameters, deformation parameters, and foreign object detection parameters: environmental anomaly, capacitor self-temperature anomaly, deformation anomaly, and foreign object anomaly," is specifically used for:

[0158] Determine the relative temperature difference ratio of the capacitor bank based on the first temperature and the capacitor's own temperature parameters;

[0159] If the relative temperature difference ratio of the capacitor bank is not within the preset range, it is determined that the temperature of at least one capacitor in the capacitor bank is abnormal.

[0160] If the initial humidity level is higher than the preset humidity level, then an environmental anomaly is identified.

[0161] If the intensity of the first infrared light signal is less than the first preset signal threshold, then it is determined that there is a deformation anomaly.

[0162] If the intensity of the second infrared light signal is less than the second preset signal threshold, then it is determined that there is a foreign object abnormality.

[0163] In one possible implementation, the device 70 is further used for:

[0164] In response to the detection of an anomaly, an alarm message is issued, indicating the type of anomaly.

[0165] The capacitor monitoring device provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail here.

[0166] Figure 8 A schematic diagram of the structure of the electronic device provided in this application. Figure 8As shown, the electronic device 80 provided in this embodiment includes at least one processor 801 and a memory 802. Optionally, the device 80 further includes a communication component 803. The processor 801, memory 802, and communication component 803 are connected via a bus 804.

[0167] In a specific implementation, at least one processor 801 executes computer execution instructions stored in memory 802, causing at least one processor 801 to perform the above-described method.

[0168] The specific implementation process of processor 801 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0169] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0170] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0171] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0172] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0173] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0174] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0175] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0176] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0177] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0178] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0179] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0180] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0181] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A capacitor monitoring method, characterized in that, include: Acquire the on / off parameters related to the capacitor collected by the detection module; In response to determining that the capacitor is de-energized based on the on / off parameters, the circuit between the capacitor and the discharge module is controlled to be turned on, wherein the discharge module is used to discharge the capacitor; The first current and ambient temperature passing through the discharge module during the discharge process are obtained; In response to the first current being greater than a preset current, and / or the ambient temperature being greater than a preset ambient temperature, the circuit between the capacitor and the discharge module is disconnected.

2. The method according to claim 1, characterized in that, The power on / off parameters include the voltage of the capacitor, the second current, and the state of the power supply switch of the capacitor; wherein, the second current represents the current flowing through the capacitor; And the response to determining the capacitor de-energized based on the on / off parameters includes: In response to the power on / off parameters indicating that the voltage and the second current are both below their respective preset thresholds, and the power supply switch is in the off state, it is determined that the capacitor is de-energized.

3. The method according to claim 1 or 2, characterized in that, It also includes, In response to the capacitor's discharge duration being greater than or equal to a preset duration threshold, the connection between the capacitor and the discharge module is disconnected.

4. The method according to claim 1, characterized in that, Also includes: Acquire one or more of the following parameters: environmental parameters, capacitor's own temperature parameters, deformation parameters, and foreign object detection parameters; Based on the environmental parameters, the capacitor's own temperature parameters, the deformation parameters, and the foreign object detection parameters, determine whether the following abnormalities exist: Abnormal environment, abnormal capacitor temperature, abnormal deformation, and abnormal foreign objects.

5. The method according to claim 4, characterized in that, The capacitor bank containing the capacitors includes multiple capacitor units, and each capacitor unit includes multiple capacitors. The environmental parameters include a first temperature and a first humidity that characterize the environment in which the capacitor bank is located. The capacitor's own temperature parameter characterizes the highest temperature among the individual temperatures of each capacitor in the capacitor bank. The deformation parameter is the first infrared light signal passing through the periphery of the capacitor unit; The foreign object detection parameter is a second infrared light signal passing through the periphery of the capacitor bank; And the determination of whether the following anomalies exist based on the environmental parameters, the capacitor's own temperature parameters, the deformation parameters, and the foreign object detection parameters: environmental anomalies, capacitor's own temperature anomalies, deformation anomalies, and foreign object anomalies, including: The relative temperature difference ratio of the capacitor bank is determined based on the first temperature and the temperature parameters of the capacitor itself. If the relative temperature difference ratio of the capacitor bank is not within the preset range, it is determined that the capacitor temperature of at least one capacitor in the capacitor bank is abnormal. If the initial humidity level is higher than the preset humidity level, then an environmental anomaly is identified. If the intensity of the first infrared light signal is less than the first preset signal threshold, then it is determined that there is a deformation anomaly; If the intensity of the second infrared light signal is less than the second preset signal threshold, then it is determined that there is a foreign object abnormality.

6. The method according to claim 4 or 5, characterized in that, Also includes: In response to the detection of an anomaly, an alarm message is issued; the alarm message indicates the type of anomaly.

7. A capacitor monitoring device, characterized in that, include: The first acquisition module is used to acquire the on / off parameters related to the capacitor collected by the detection module; A first control module is configured to control the connection between the capacitor and the discharge module in response to determining that the capacitor is de-energized based on the on / off parameters, wherein the discharge module is configured to discharge the capacitor. The second acquisition module is used to acquire the first current and ambient temperature passing through the discharge module during the discharge process. The second control module is used to control the connection between the capacitor and the discharge module to be disconnected in response to the first current being greater than a preset current and / or the ambient temperature being greater than a preset ambient temperature.

8. An electronic device, characterized in that, include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-6.

10. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method of any one of claims 1-6.

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