A method, device, computer equipment and storage medium for tripping a fault circuit breaker

Abstract

The embodiment of the present invention provides a method, device, computer equipment and medium for tripping a fault circuit breaker, the method comprising: performing a first fault detection on a circuit connected to a first circuit breaker, if a first fault occurs in the circuit connected to the first circuit breaker, performing a first tripping operation, and detecting the completion progress of the first tripping operation, if the completion progress is incomplete, determining that a second fault occurs in the first circuit breaker, and in response to the second fault, performing a second tripping operation to separate the circuit where the first fault occurs. The embodiment of the present invention detects whether a first fault occurs in the circuit connected to the first circuit breaker, and considering possible faults of the circuit breaker itself, detects whether a second fault occurs in the first circuit breaker, and timely separates the circuit where the first fault occurs and the first circuit breaker from the main circuit through the first and second tripping operations, thereby avoiding damage to the operation of the main circuit, improving the timeliness of fault circuit separation, and improving the safety of electricity use.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of electrical circuits, and in particular, to a method, device, computer equipment, and storage medium for tripping a fault circuit breaker. Background Art

[0002] With the rapid development of my country's economy, people's living standards are constantly improving, and the number of household electrical appliances is increasing. The safety and continuity of electricity use have become issues that are increasingly concerned. Therefore, in order to ensure the safety of electricity use, circuit breakers are often equipped in transmission lines. Each circuit breaker is divided into a section of the circuit protected by the circuit breaker. When a fault occurs in this circuit, the circuit breaker will separate the faulty circuit from the overall circuit through its own action mechanism and wait for maintenance, thereby ensuring the overall safety of the transmission line.

[0003] When a circuit breaker fails, for example, if the circuit breaker fails to control the gate to separate the fault or fails to correctly detect the fault of the connected circuit, the circuits that are connected to the faulty circuit and are not connected to the circuit breaker will also fall into a fault state, posing a threat to power safety. Therefore, fault detection of circuit breakers and opening of circuit breakers when faults are detected to ensure the normal operation of circuit breakers have gradually become one of the focuses of people's attention.

[0004] At present, the tripping operation for the faulty circuit breaker is mainly to give the location of the faulty circuit breaker after the circuit breaker fault is detected, and the faulty circuit breaker is repaired by manual maintenance. It takes a certain amount of time from the detection of the circuit breaker fault to the completion of the manual maintenance. If the circuit connected to the faulty circuit breaker is short-circuited or broken during this period, the faulty circuit will affect the operation of the entire circuit without the protection of the circuit breaker, resulting in a small-scale power outage or power system paralysis, and the safety of electricity use is difficult to guarantee. Summary of the invention

[0005] The embodiments of the present invention provide a fault circuit breaker disconnection method, device, computer equipment and storage medium to solve the problem that when a circuit connected to the circuit breaker fails, the faulty circuit cannot be separated from the main circuit in time due to a failure of the operating mechanism of the circuit breaker itself.

[0006] In a first aspect, an embodiment of the present invention provides a fault circuit breaker tripping method, comprising:

[0007] Performing a first fault detection on a circuit connected to the first circuit breaker;

[0008] If the first fault occurs in the circuit connected to the first circuit breaker, a first opening operation is performed, where the first opening operation is used to control the first circuit breaker to separate the circuit connected to the first circuit breaker;

[0009] detecting the completion progress of the first opening operation;

[0010] If the completion progress is incomplete, determining that a second fault occurs in the first circuit breaker;

[0011] In response to the second fault, a second opening operation is performed, wherein the second opening operation is used to control a second circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker, and the second circuit breaker is an upper-level circuit breaker of the first circuit breaker.

[0012] In a second aspect, an embodiment of the present invention further provides a fault circuit breaker tripping device, comprising:

[0013] a first fault detection module, configured to perform a first fault detection on a circuit connected to a first circuit breaker, and to call a first opening operation execution module if the first fault occurs in the circuit connected to the first circuit breaker;

[0014] A first opening operation execution module, used for executing a first opening operation, wherein the first opening operation is used for controlling the first circuit breaker to separate the circuit to which the first circuit breaker is connected;

[0015] a first opening operation completion progress detection module, used to detect the completion progress of the first opening operation, and if the completion progress is incomplete, calling the second fault determination module;

[0016] A second fault determination module, used for determining that a second fault occurs in the first circuit breaker;

[0017] The second opening operation execution module is used to execute a second opening operation in response to the second fault, wherein the second opening operation is used to control a second circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker, and the second circuit breaker is an upper-level circuit breaker of the first circuit breaker.

[0018] In a third aspect, an embodiment of the present invention further provides a computer device, the computer device comprising:

[0019] one or more processors;

[0020] a memory for storing one or more programs,

[0021] When the one or more programs are executed by the one or more processors, the one or more processors implement the fault circuit breaker tripping method as described in the first aspect.

[0022] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the fault circuit breaker tripping method as described in the first aspect is implemented.

[0023] In an embodiment of the present invention, by detecting whether a first fault occurs in a circuit connected to a first circuit breaker, a tripping operation is performed when the first fault is detected in the circuit, and the faulty circuit is separated from the main circuit in time. In an embodiment of the present invention, a judgment on whether the first circuit breaker performs a tripping operation is also introduced. When it is detected that the first circuit breaker does not perform a tripping operation when a first fault occurs, it is judged that a second fault occurs in the first circuit breaker, so as to monitor whether the first circuit breaker fails, and perform a second tripping operation on the faulty first circuit breaker, so as to separate the circuit and the circuit breaker where the first fault occurs from the main circuit in time, so as to avoid damage to the operation of the main circuit and threaten the life and property safety of users.

[0024] In the embodiment of the present invention, the second opening operation is performed on the faulty first circuit breaker by searching for the superior circuit breaker of the first circuit breaker after the second fault occurs in the first circuit breaker, and instructing the superior circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker and having the first fault from the main circuit. That is, the second opening operation of the faulty first circuit breaker does not rely on manual operation. When the second fault is detected, the superior circuit breaker is promptly notified to separate the faulty first circuit breaker and the circuit through calculation and analysis results. Compared with the background technology, the timeliness of fault circuit separation is improved, and the safety of electricity use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A flow chart of a fault circuit breaker tripping method provided in Embodiment 1 of the present invention;

[0026] Figure 2 A schematic diagram of a circuit breaker topology relationship provided in Embodiment 1 of the present invention;

[0027] Figure 3 This is a flow chart of a fault circuit breaker tripping method provided by Embodiment 2 of the present invention;

[0028] Figure 4 A structural block diagram of a fault circuit breaker tripping device provided in Embodiment 3 of the present invention;

[0029] Figure 5 A schematic diagram of the structure of a computer device provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] Embodiment 1

[0032] Figure 1 A flow chart of a fault circuit breaker tripping method provided in Embodiment 1 of the present invention. This embodiment is applicable to a case where a circuit breaker tripping operation fails when a fault occurs in an access circuit. The method can be performed by a fault circuit breaker tripping device, which can be implemented by software and / or hardware and can be configured in a computer device, and specifically includes the following steps:

[0033] Step 101: Perform a first fault detection on a circuit connected to a first circuit breaker. If a first fault occurs in the circuit connected to the first circuit breaker, execute step 102.

[0034] In this embodiment, the circuit breaker refers to a switch device that can close, carry and disconnect the current under normal circuit conditions and can close, carry and disconnect the current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The function of the circuit breaker is to cut off and connect the load circuit, as well as to cut off the fault circuit, prevent the accident from expanding, and ensure safe operation. In this embodiment, the first circuit breaker may refer to the circuit breaker at the bottom of the circuit breaker network topology. In the power system, according to the size of the circuit range connected, the circuit breaker is also divided into different levels. The lower-level circuit breaker is connected and controls the on-off of the circuit with a smaller range. The upper-level circuit breaker of the lower-level circuit breaker controls multiple circuit breakers at the same level as the lower-level circuit breaker and completes the on-off control of the circuit controlled by these lower-level circuit breakers by controlling these lower-level circuit breakers. Circuit breakers at different levels also form a circuit breaker network topology in the power system. In this embodiment, the network topology structure between different circuit breakers can be obtained by, after the power system is powered on, the main station sends a command to start topology identification to all circuit breakers in the power system. When the circuit breaker receives this command, it generates a characteristic current signal and feeds it to the power line. It is then uploaded to the upper device of the main circuit breaker step by step through the power line. The upper device can be an energy controller or a gateway, etc. The upper device performs corresponding demodulation processing on the received characteristic current signal, and finally decodes it to obtain data information of the characteristic current signal, including time stamp and intensity, and uploads the data information to the main station. The main station generates a topology structure based on the data information, thereby obtaining the network topology structure of different circuit breakers. Figure 2As shown, a plurality of first circuit breakers 210 are connected to the second circuit breakers 220, and different second circuit breakers 220 are aggregated into the main circuit breaker 230. The master station is usually a centralized control center in the intelligent management system of the distribution network area.

[0035] In this embodiment, a first fault detection is performed on the circuit connected to the first circuit breaker, wherein the first fault refers to a short circuit or open circuit in the circuit connected to the first circuit breaker. Usually, a detection device is provided in the first circuit breaker, and the detection device can measure the value of the current or voltage at the first circuit breaker.

[0036] In one embodiment of the present invention, performing a first fault detection on a circuit connected to the first circuit breaker specifically includes:

[0037] Detect the first real-time circuit current in the circuit connected to the first circuit breaker, and the first real-time circuit current can be obtained by querying the real-time current value at the first circuit breaker measured by the detection device. After obtaining the first real-time circuit current, the first real-time circuit current is compared with the preset safety circuit current to determine whether the circuit connected to the first circuit breaker has a first fault, wherein the preset safety circuit current is obtained based on pre-calculation, and the calculation process not only considers the influence of the type, specification and ambient temperature of the wire and cable, but also considers that when the wire or cable continuously passes through the safety circuit current, the temperature generated by the line cannot be greater than the maximum allowable temperature, which is usually about 70 degrees. After comparison, if the first real-time circuit current is greater than the safety circuit current, it can be determined that the circuit connected to the first circuit breaker has a first fault.

[0038] Step 102: Execute a first opening operation, where the first opening operation is used to control a first circuit breaker to separate a circuit to which the first circuit breaker is connected.

[0039] In this embodiment, when a first fault occurs in the circuit to which the first circuit breaker is connected, in order to avoid causing greater damage to the power system where the circuit is located, such as a fire that burns the circuit network or a large-scale power outage, leakage, or other accident, the first circuit breaker can be used to perform a first disconnection operation on the circuit where the first fault occurs, so as to separate the faulty circuit from the power system, so that the faulty circuit loses power supply and avoids further damage.

[0040] In one embodiment of the present invention, the first opening operation specifically includes:

[0041] Generate a first trip signal; in this embodiment, after the first fault is detected, the first trip signal is automatically generated, and the first trip signal can be expressed in the form of current. The first trip signal is sent to the first operating mechanism, and the first operating mechanism is used to disconnect the circuit connected to the first circuit breaker from the power supply. In this embodiment, the structure of the first circuit breaker includes a contact, an arc extinguishing chamber, a tripper and an operating mechanism, wherein the operating mechanism is the first operating mechanism in this embodiment. Further, the tripper of the first circuit breaker in this embodiment can adopt an overcurrent tripper, wherein the tripping current of the overcurrent tripper can be the aforementioned safety circuit current. When it is detected that the first real-time circuit current exceeds the tripping current, a first trip signal is generated. When the first trip signal reaches the first operating mechanism, the armature of the overcurrent tripper connected to the first operating mechanism can be attracted, so that the trip coil of the first operating mechanism is energized, the iron core moves, and the main contact of the first circuit breaker is disconnected from the main circuit, thereby avoiding the influence of the circuit with the first fault on the main circuit. In this embodiment, the main circuit supplies power to the first circuit breaker and the circuit connected to the first circuit breaker, which is equivalent to the power supply.

[0042] Step 103 , detecting the completion progress of the first opening operation, and executing step 104 if the completion progress is incomplete.

[0043] In this embodiment, considering that the first operating mechanism of the first circuit breaker is in an abnormal working state and it is difficult to disconnect the faulty circuit in time, the completion progress of executing the first opening operation can also be detected.

[0044] In one embodiment of the present invention, the completion progress of detecting the first opening operation is specifically manifested as:

[0045] Calculate the duration of the first fault. In this embodiment, when the first opening operation is not completed, the circuit where the first fault occurs remains in a fault state, so that the fault current value at the first circuit breaker that can be measured by the above-mentioned detection device remains unchanged, and the unchanged time of the fault current value is calculated as the duration of the first fault.

[0046] Compare the duration with the preset first opening time. In this embodiment, the first circuit breaker has a preset first opening time when performing the opening operation. The first opening time of the first circuit breaker usually consists of two parts, namely, the inherent opening time and the arc extinction time. The inherent opening time refers to the time from the opening coil of the first operating mechanism being energized to the separation of the contacts, and the arc extinction time refers to the time from the separation of the contacts to the extinction of the arcs of each phase. Therefore, if the duration of the first fault is less than or equal to the first opening time, it is still within the reaction time of the first operating mechanism, and the first opening operation is not considered to be incomplete.

[0047] If the duration exceeds the first opening time, it is determined that the first opening operation has not been completed. In this embodiment, when the duration of the first fault exceeds the first opening time, it means that the first opening operation has not been completed within the specified time, and the circuit where the first fault occurs has not been separated in time.

[0048] Step 104: Determine whether a second fault occurs in the first circuit breaker.

[0049] In this embodiment, when it is detected that the completion progress of the first opening operation is incomplete, it means that the first operating mechanism has not separated the circuit with the first fault in time. In order to avoid the circuit with the first fault from continuing to damage the overall circuit, it can be determined that the first circuit breaker has a second fault, that is, the first operating mechanism of the first circuit breaker has a fault, for example, the opening coil of the first operating mechanism is damaged.

[0050] Step 105: In response to the second fault, perform a second opening operation, the second opening operation is used to control the second circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker, the second circuit breaker being the upper level circuit breaker of the first circuit breaker.

[0051] In this embodiment, after the second fault of the first circuit breaker is detected, it is difficult for the first circuit breaker to separate the circuit where the fault occurs. At this time, as a backup method, this embodiment proposes to separate the circuit where the first fault occurs and the first circuit breaker where the second fault occurs by performing a second opening operation. The second circuit breaker is the upper circuit breaker of the first circuit breaker. As mentioned above, after different circuit breakers are connected to the same power system, they are divided into different levels according to the size of the circuits connected. The upper circuit breaker can have multiple lower circuit breakers and the circuits connected to the lower circuit breakers.

[0052] In one embodiment of the present invention, the second opening operation specifically includes:

[0053] A second fault signal is generated, and the second fault signal includes the communication address of the first circuit breaker. In this embodiment, when a second fault occurs in the first circuit breaker, a second fault signal is first generated, and the second fault signal may include the communication address of the first circuit breaker, the geographical location information of the first circuit breaker, the fault type, etc., and the second fault signal is transmitted to the main station via a high-speed power line carrier.

[0054] The parent circuit breaker of the first circuit breaker is queried through the communication address as the second circuit breaker. In this embodiment, the communication address can indicate the position of the first circuit breaker in the circuit breaker topology network structure. Therefore, after the master station analyzes the second fault signal, it can query the parent circuit breaker of the first circuit breaker in the circuit breaker network topology structure according to the communication address of the first circuit breaker. After querying the parent circuit breaker of the first circuit breaker, the parent circuit breaker is used as the second circuit breaker.

[0055] Generate a second opening signal. In this embodiment, after finding the upper level circuit breaker of the first circuit breaker, the master station generates a second opening signal to control the second circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker.

[0056] The second opening signal is sent to the second operating mechanism, and the second operating mechanism is used to disconnect the first circuit breaker and the circuit connected to the first circuit breaker from the power supply. In this embodiment, the second circuit breaker can be connected to the multiple first circuit breakers under its jurisdiction by means of cables, soft copper bars or wiring terminals. In this embodiment, the wiring terminal method can be used. Multiple wiring terminals are respectively set at the second circuit breaker and the first circuit breaker. A connection device made of multiple metal sheets is used to connect one wiring terminal in the first circuit breaker with one wiring terminal in the second circuit breaker using a metal sheet to achieve the connection between the first circuit breaker and the second circuit breaker. After generating the second opening signal, the master station can also send the second opening signal to the second circuit breaker. When the second opening signal arrives at the second circuit breaker, it acts on the second operating mechanism. At this time, the second operating mechanism can refer to the wiring terminal on the second circuit breaker corresponding to the first circuit breaker with the second fault. The second operating mechanism is separated from the metal sheet according to the second opening signal, so that the first circuit breaker at the other end of the metal sheet and the circuit connected to the first circuit breaker are separated from the main circuit, thereby avoiding the influence of the circuit with the first fault on the main circuit. In this embodiment, the main circuit supplies power to the first circuit breaker and the circuit connected to the first circuit breaker, which is equivalent to a power supply.

[0057] In an embodiment of the present invention, by detecting whether a first fault occurs in a circuit connected to a first circuit breaker, a tripping operation is performed when the first fault is detected in the circuit, and the faulty circuit is separated from the main circuit in time. In an embodiment of the present invention, a judgment on whether the first circuit breaker performs a tripping operation is also introduced. When it is detected that the first circuit breaker does not perform a tripping operation when a first fault occurs, it is judged that a second fault occurs in the first circuit breaker, so as to monitor whether the first circuit breaker fails, and perform a second tripping operation on the faulty first circuit breaker, so as to separate the circuit and the circuit breaker where the first fault occurs from the main circuit in time, so as to avoid damage to the operation of the main circuit and threaten the life and property safety of users.

[0058] In the embodiment of the present invention, the second opening operation is performed on the faulty first circuit breaker by searching for the superior circuit breaker of the first circuit breaker after the second fault occurs in the first circuit breaker, and instructing the superior circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker and having the first fault from the main circuit. That is, the second opening operation of the faulty first circuit breaker does not rely on manual operation. When the second fault is detected, the superior circuit breaker is promptly notified to separate the faulty first circuit breaker and the circuit through calculation and analysis results. Compared with the background technology, the timeliness of fault circuit separation is improved, and the safety of electricity use is improved.

[0059] Embodiment 2

[0060] Figure 3 This is a flow chart of a fault circuit breaker tripping method provided in Embodiment 2 of the present invention. This embodiment is based on the above embodiment and further adds how to ensure the safe operation of the circuit when the circuit breaker fails to correctly detect the first fault. The method specifically includes the following steps:

[0061] Step 301: Perform a first fault detection on a circuit connected to a first circuit breaker. If a first fault occurs in the circuit connected to the first circuit breaker, execute step 302.

[0062] Step 302: Execute a first opening operation, where the first opening operation is used to control a first circuit breaker to disconnect a circuit to which the first circuit breaker is connected.

[0063] Step 303 , detecting the completion progress of the first opening operation, if the completion progress is incomplete, executing step 304 .

[0064] Step 304: Determine whether a second fault occurs in the first circuit breaker.

[0065] Step 305: In response to the second fault, perform a second opening operation, the second opening operation is used to control the second circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker, the second circuit breaker being the upper level circuit breaker of the first circuit breaker.

[0066] Step 306 , determining whether the third fault occurs in the first circuit breaker. The third fault is that the first circuit breaker fails to detect that the connected circuit has the first fault. If the third fault occurs, execute step 307 .

[0067] In this embodiment, the first circuit breaker may also have a situation where the detection device fails, that is, the third fault, which is specifically manifested as the detection device of the first circuit breaker fails to detect that the connected circuit has the first fault. Then, after the circuit fails, it cannot be separated from the main circuit in time, forming a safety hazard. This embodiment proposes to judge the third fault and propose a solution to the third fault to ensure the safety of circuit operation.

[0068] In one embodiment of the present invention, the process of determining whether the third fault occurs in the first circuit breaker is specifically performed as follows:

[0069] The second real-time circuit current at the first circuit breaker is collected. In this embodiment, in addition to a detection device provided at the first circuit breaker for detecting the first fault, another parameter measurement module is also provided at the first circuit breaker for collecting data generated during the operation of the first circuit breaker, such as the real-time current flowing through the first circuit breaker, and the real-time current is directly uploaded to the main station as the second real-time current.

[0070] Determine whether the second real-time circuit current exceeds the preset safety circuit current. After receiving the second real-time current, the master station compares the second real-time current with the preset safety circuit current. When the second real-time current exceeds the safety circuit current, it indicates that a first fault has occurred in the circuit to which the first circuit breaker is connected, and the circuit is in an unsafe state.

[0071] The opening state of the first circuit breaker is collected, and the opening state includes a state in which the first opening operation has been executed and a state in which the first opening operation has not been executed. In this embodiment, when the second real-time current is collected and it is found through comparison that a first fault has occurred in the circuit connected to the first circuit breaker, if the first circuit breaker can normally detect the first fault and respond normally through the first operating mechanism, then the third fault has not occurred. When the first circuit breaker responds to the first fault, the opening state will change, for example, from a state in which the first opening operation has not been executed to a state in which the first opening operation has been executed. Therefore, collecting the opening state of the first circuit breaker can reflect whether the first circuit breaker has detected the first fault.

[0072] If it exceeds, and the opening state is the state in which the first opening operation is not performed, it is determined that the first circuit breaker has a third fault. In this embodiment, when the second real-time current received by the master station exceeds the safety circuit current, and the first circuit breaker does not respond, that is, the opening state of the first circuit breaker is not switched to the state in which the first opening operation has been performed, it is determined that the first circuit breaker has a third fault.

[0073] Step 307: Generate a third opening signal.

[0074] In this embodiment, when it is determined that the first circuit breaker has a third fault, the first circuit breaker cannot promptly separate the connected circuit that has the first fault. In this embodiment, a third opening signal is generated according to the third fault that has occurred. The third opening signal can instruct the first circuit breaker to start the opening operation.

[0075] Step 308: Send a third opening signal to the first operating mechanism, where the first operating mechanism is used to disconnect the circuit connected to the first circuit breaker from the power supply.

[0076] In this embodiment, since the third fault is directly analyzed by the main station, the main station can determine the first circuit breaker where the third fault occurs according to the parameter measurement module that uploads the analysis data about the third fault, and transmit the third opening signal to the first operating mechanism of the first circuit breaker. When the third opening signal reaches the first operating mechanism, the armature of the overcurrent release connected to the first operating mechanism can be attracted, so that the opening coil of the first operating mechanism is energized, the iron core moves, and the main contact of the first circuit breaker is disconnected from the main circuit, thereby avoiding the influence of the faulty circuit on the main circuit. In this embodiment, the main circuit supplies power to the first circuit breaker and the circuit connected to the first circuit breaker, which is equivalent to the power supply.

[0077] In this embodiment, a parameter measurement module is provided at the first circuit breaker, and the operation data of the first circuit breaker measured by the parameter measurement module is transmitted to the main station, and the main station analyzes whether the detection device at the first circuit breaker is operating normally. When the detection device is operating normally, that is, the third fault occurs in the first circuit breaker, the main station generates a third opening signal and transmits it to the first operating mechanism of the first circuit breaker. When the first circuit breaker fails to detect the first fault of the connected circuit due to the failure of the detection device, the circuit is separated from the main circuit in time, thereby further ensuring the safety and reliability of electricity use.

[0078] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0079] Figure 4 A schematic diagram of the structure of a fault circuit breaker tripping device provided in the third embodiment of the present invention may specifically include the following modules:

[0080] A first fault detection module 410 is used to perform a first fault detection on a circuit connected to a first circuit breaker, and if the first fault occurs in the circuit connected to the first circuit breaker, a first opening operation execution module is called;

[0081] A first opening operation execution module 420, configured to execute a first opening operation;

[0082] A first opening operation completion progress detection module 430, used to detect the completion progress of the first opening operation, and if the completion progress is incomplete, calling a second fault determination module;

[0083] A second fault determination module 440, configured to determine that a second fault occurs in the first circuit breaker;

[0084] The second opening operation execution module 450 is used to execute a second opening operation in response to the second fault. The second opening operation is used to control the second circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker. The second circuit breaker is the upper circuit breaker of the first circuit breaker.

[0085] In one embodiment of the present invention, the first fault detection module 410 includes:

[0086] A first real-time circuit current detection module, used to detect a first real-time circuit current in a circuit connected to the first circuit breaker;

[0087] A circuit current comparison module, used for comparing the first real-time circuit current with a preset safety circuit current, and calling a first fault determination module if the first real-time circuit current is greater than the safety circuit current;

[0088] The first fault determination module is used to determine that a first fault occurs in the circuit to which the first circuit breaker is connected.

[0089] In one embodiment of the present invention, the first opening operation execution module 420 includes:

[0090] A first opening signal generating module, used for generating a first opening signal;

[0091] The first opening signal sending module is used to send the first opening signal to a first operating mechanism, and the first operating mechanism is used to disconnect the circuit connected to the first circuit breaker from the power supply.

[0092] In one embodiment of the present invention, the first opening operation completion progress detection module 430 includes:

[0093] A first fault time calculation module, used to calculate the duration of occurrence of the first fault;

[0094] The duration comparison module is used to compare the duration with a preset first opening time. If the duration exceeds the first opening time, it is determined that the first opening operation has not been completed, and the second fault determination module 440 is called.

[0095] In one embodiment of the present invention, the second opening operation execution module 450 includes:

[0096] A second fault signal generating module, configured to generate a second fault signal, wherein the second fault signal includes a communication address of the first circuit breaker;

[0097] An upper-level circuit breaker query module, used to query the upper-level circuit breaker of the first circuit breaker through the communication address as the second circuit breaker;

[0098] A second opening signal generating module, used for generating a second opening signal;

[0099] The second opening signal sending module is used to send the second opening signal to a second operating mechanism, and the second operating mechanism is used to disconnect the first circuit breaker and the circuit connected to the first circuit breaker from the power supply.

[0100] In one embodiment of the present invention, the fault circuit breaker tripping device further comprises:

[0101] A third fault judgment module is used to judge whether a third fault occurs to the first circuit breaker, where the third fault is that the first circuit breaker fails to detect that the connected circuit has the first fault, and if the third fault occurs, a third trip signal generation module is called;

[0102] A third opening signal generating module, used for generating a third opening signal;

[0103] The third opening signal sending module is used to send the third opening signal to the first operating mechanism, and the first operating mechanism is used to disconnect the circuit connected to the first circuit breaker from the power supply.

[0104] In one embodiment of the present invention, the third fault judgment module includes:

[0105] A second real-time circuit current acquisition module, used for acquiring a second real-time circuit current at the first circuit breaker;

[0106] A second real-time circuit current judgment module, used to judge whether the second real-time circuit current exceeds a preset safety circuit current;

[0107] An opening state acquisition module is used to acquire the opening state of the first circuit breaker, wherein the opening state includes a state where the first opening operation has been executed and a state where the first opening operation has not been executed. If the state exceeds the limit and the opening state is a state where the first opening operation has not been executed, a third fault determination module is called;

[0108] The third fault determination module is used to determine that a third fault occurs in the first circuit breaker.

[0109] The fault circuit breaker tripping device provided in the embodiment of the present invention can execute the fault circuit breaker tripping method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0110] Embodiment 4

[0111] Figure 5A schematic diagram of the structure of a computer device provided in Embodiment 4 of the present invention. Figure 5 A block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention is shown. Figure 5 The computer device 12 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0112] like Figure 5 As shown, the computer device 12 is in the form of a general-purpose computing device. The components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that connects various system components (including the system memory 28 and the processing unit 16).

[0113] Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor or a local bus using any of a variety of bus architectures. By way of example, these architectures include, but are not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MAC) bus, an Enhanced ISA bus, a Video Electronics Standards Association (VESA) local bus, and a Peripheral Component Interconnect (PCI) bus.

[0114] The computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computer device 12, including volatile and non-volatile media, removable and non-removable media.

[0115] The system memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and / or cache memory 32. The computer device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, the storage system 34 may be used to read and write non-removable, non-volatile magnetic media ( Figure 5 not shown, usually called a "hard drive"). Although Figure 5 Not shown in the figure, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, a DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 18 via one or more data medium interfaces. The memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of the various embodiments of the present invention.

[0116] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in the memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. The program modules 42 generally perform the functions and / or methods of the embodiments described herein.

[0117] The computer device 12 may also communicate with one or more external devices 14 (e.g., keyboards, pointing devices, displays 24, etc.), one or more devices that enable a user to interact with the computer device 12, and / or any device that enables the computer device 12 to communicate with one or more other computing devices (e.g., network cards, modems, etc.). Such communication may be performed via an input / output (I / O) interface 22. Furthermore, the computer device 12 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 20. As shown, the network adapter 20 communicates with the other modules of the computer device 12 via the bus 18. It should be understood that although Figure 5 Not shown, other hardware and / or software modules may be used in conjunction with computer device 12, including but not limited to microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0118] The processing unit 16 executes various functional applications and data processing by running the programs stored in the system memory 28, such as implementing the fault circuit breaker tripping method provided in the embodiment of the present invention.

[0119] Embodiment 5

[0120] Embodiment 5 of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the various processes of the above-mentioned fault circuit breaker tripping method are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0121] Among them, computer-readable storage media may include, for example, but are not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, 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 above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or device.

[0122] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for opening a fault circuit breaker, characterized in that: include: Performing a first fault detection on a circuit connected to the first circuit breaker; If the first fault occurs in the circuit connected to the first circuit breaker, a first opening operation is performed, where the first opening operation is used to control the first circuit breaker to separate the circuit connected to the first circuit breaker; detecting the completion progress of the first opening operation; If the completion progress is incomplete, determining that a second fault occurs in the first circuit breaker; In response to the second fault, performing a second opening operation, the second opening operation being used to control a second circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker, the second circuit breaker being an upper level circuit breaker of the first circuit breaker; Wherein, in response to the second fault, performing a second opening operation includes: generating a second fault signal, the second fault signal including a communication address of the first circuit breaker, geographical location information of the first circuit breaker, and a fault type, and transmitting the second fault signal to a master station; The master station searches for the superior circuit breaker of the first circuit breaker in the circuit breaker network topology through the communication address as the second circuit breaker.

2. The method according to claim 1, characterized in that The performing a first fault detection on the circuit connected to the first circuit breaker includes: Detecting a first real-time circuit current in a circuit connected to the first circuit breaker; Comparing the first real-time circuit current with a preset safety circuit current; If the first real-time circuit current is greater than the safety circuit current, it is determined that a first fault occurs in the circuit to which the first circuit breaker is connected.

3. The method according to claim 1, characterized in that The first opening operation is performed, including: generating a first opening signal; The first opening signal is sent to a first operating mechanism, and the first operating mechanism is used to disconnect the circuit connected to the first circuit breaker from a power source.

4. The method according to claim 1, characterized in that: The detecting the completion progress of the first opening operation includes: Calculating the duration of occurrence of the first fault; Comparing the duration with a preset first opening time; If the duration exceeds the first opening time, it is determined that the first opening operation has not been completed.

5. The method according to any one of claims 1 to 4, characterized in that: In response to the second fault, performing a second opening operation further includes: generating a second opening signal; The second opening signal is sent to a second operating mechanism, and the second operating mechanism is used to disconnect the first circuit breaker and the circuit connected to the first circuit breaker from the power supply.

6. The method according to any one of claims 1 to 4, characterized in that: Also includes: Determining whether a third fault occurs in the first circuit breaker, where the third fault is that the first circuit breaker fails to detect that the first fault occurs in the circuit connected thereto; If the third fault occurs, generating a third trip signal; The third opening signal is sent to a first operating mechanism, and the first operating mechanism is used to disconnect the circuit connected to the first circuit breaker from a power source.

7. The method according to claim 6, characterized in that The determining whether the first circuit breaker has a third fault comprises: collecting a second real-time circuit current at the first circuit breaker; Determining whether the second real-time circuit current exceeds a preset safety circuit current; collecting the opening state of the first circuit breaker, wherein the opening state includes a state in which the first opening operation has been executed and a state in which the first opening operation has not been executed; If it exceeds, and the opening state is the state where the first opening operation is not performed, it is determined that the first circuit breaker has a third fault.

8. A fault circuit breaker tripping device, characterized in that: include: A first fault detection module, used for performing a first fault detection on the circuit connected to the first circuit breaker, and calling a first opening operation execution module if a first fault occurs; A first opening operation execution module, used for executing a first opening operation, wherein the first opening operation is used for controlling the first circuit breaker to separate the circuit to which the first circuit breaker is connected; A first opening operation completion progress detection module, used to determine whether the first opening operation has been completed, and if the completion progress is incomplete, calling a second fault determination module; A second fault determination module, used for determining that a second fault occurs in the first circuit breaker; a second opening operation execution module, configured to execute a second opening operation when the second fault occurs, wherein the second opening operation is configured to control a second circuit breaker to separate the first circuit breaker and the circuit connected to the first circuit breaker, wherein the second circuit breaker is an upper level circuit breaker of the first circuit breaker; Wherein, the second opening operation execution module includes: A second fault signal generating module is used to generate a second fault signal, wherein the second fault signal includes a communication address of the second circuit breaker, geographical location information of the first circuit breaker and a fault type; and transmit the second fault signal to a master station; The upper-level circuit breaker query module is used to query the upper-level circuit breaker of the first circuit breaker in the circuit breaker network topology structure through the communication address as the second circuit breaker.

9. A computer device, characterized in that: The computer device comprises: one or more processors; A memory, used to store one or more programs, when the one or more programs are executed by the one or more processors, enables the one or more processors to implement the fault circuit breaker tripping method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the fault circuit breaker tripping method according to any one of claims 1 to 7 is implemented.

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