Deeply integrated circuit breaker with Beidou positioning and intelligent in-situ protection capacitor power taking functions

Abstract

The invention provides a deep integration circuit breaker with Beidou positioning, intelligent in-situ protection and capacitor electricity taking functions, belongs to the technical field of electrics, and aims to improve the reliability of in-situ protection execution of the circuit breaker. The circuit breaker is configured to execute the following operations: the circuit breaker takes electricity from a power grid line connected with the circuit breaker, and stores electric energy obtained by electricity taking into a corresponding storage capacitor; under the condition that the power grid line is monitored to be abnormal, the circuit breaker obtains electric energy from the corresponding storage capacitor, executes in-situ protection and also reports abnormal information to the operation and maintenance center, the abnormal information indicates the circuit breaker to execute in-situ protection, the abnormal information comprises position information of the circuit breaker, and the position information of the circuit breaker is obtained through Beidou positioning.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to a circuit breaker that deeply integrates Beidou positioning, intelligent local protection, and capacitor power supply. Background Technology

[0002] Circuit breakers are crucial protective devices in power systems. Their main function is to quickly disconnect the circuit when the current exceeds a set value, thereby protecting the safe operation of power equipment and systems.

[0003] Local protection refers to the ability of a circuit breaker to quickly and independently execute protective actions upon detecting a fault current, without relying on remote control signals. This protection method has the following advantages: 1. Fast response speed: Local protection can detect faults and disconnect circuits within milliseconds, thereby minimizing the impact of faults on the power system. 2. High reliability: Because local protection does not rely on remote signals, it is unaffected by communication line faults or signal delays, making the protection action more reliable. 3. Simplified system structure: Using local protection reduces reliance on remote control systems, simplifying the structure and maintenance of the power system.

[0004] To achieve local protection, circuit breakers need an independent power supply, such as relying on batteries as their primary power source. However, if the battery fails or has insufficient power, it can cause delays or even prevent the circuit breaker from performing local protection actions, thus posing a safety hazard. Summary of the Invention

[0005] This application provides a circuit breaker with deep integration of BeiDou positioning and intelligent local protection capacitor power supply, which improves the reliability of the circuit breaker in performing local protection by intelligently drawing power from the power grid via capacitors.

[0006] To achieve the above objectives, this application adopts the following technical solution: Firstly, a circuit breaker with deep integration of BeiDou positioning and intelligent local protection capacitor power extraction is provided. The circuit breaker is configured to perform the following operations: the circuit breaker draws power from the power grid line connected to it and stores the obtained power in the corresponding storage capacitor; when an abnormality is detected in the power grid line, the circuit breaker draws power from the corresponding storage capacitor to perform local protection; the circuit breaker also reports abnormal information to the operation and maintenance center, and the abnormal information instructs the circuit breaker to perform local protection. The abnormal information includes the location information of the circuit breaker, which is obtained through BeiDou positioning.

[0007] Optionally, the circuit breaker draws power from the power grid line to which it is connected and stores the obtained electrical energy in a corresponding storage capacitor, including: the circuit breaker monitors the state of the power grid line to determine whether it is an opportune time to draw power; if it is an opportune time to draw power, the circuit breaker draws power from the power grid line and stores the obtained electrical energy in a corresponding storage capacitor.

[0008] Optionally, the circuit breaker determines whether it is a time to draw power by monitoring the status of the power grid line, including: the circuit breaker acquiring the voltage and current continuity information of the power grid line at a preset time point in the current cycle; the circuit breaker's processing chip analyzing the voltage and current continuity information through a lightweight model built into the processing chip to determine whether the current cycle is a time to draw power.

[0009] Optionally, the continuous voltage and current information includes voltage and current at multiple moments. The circuit breaker's processing chip analyzes the continuous voltage and current information using a lightweight model built into the processing chip to determine whether the current period is a power-drawing opportunity. This includes: the circuit breaker interleaving the voltage and current at multiple moments according to energy levels to obtain multiple interleaved voltages and currents. The interleaved voltages and currents include multiple sets of voltages and multiple sets of currents. Each set of voltages includes voltages ordered in descending or ascending order of energy level, and each set of currents includes currents ordered in descending or ascending order of energy level. If a voltage of a corresponding energy level is missing from the voltages at multiple moments, the voltage of the corresponding energy level is set to 0. Similarly, if a current of a corresponding energy level is missing from the currents at multiple moments, the voltage of the corresponding energy level is set to 0. The circuit breaker's processing chip analyzes the interleaved voltages and currents using a lightweight model built into the processing chip to determine whether the current period is a power-drawing opportunity.

[0010] Optionally, the circuit breaker draws power from the power grid line and stores the obtained electrical energy in the corresponding storage capacitor, including: the circuit breaker draws power from the power grid line; the circuit breaker determines the storage capacitor that most needs to be stored in the storage capacitor cluster according to the energy storage state of the corresponding storage capacitor in the storage capacitor cluster; the circuit breaker stores the obtained electrical energy in the storage capacitor that most needs to be stored.

[0011] Optionally, the circuit breaker is calculated using the following formula: ; in, This represents the energy storage state of any storage capacitor i connected to the circuit breaker in the storage capacitor cluster. To store the weight corresponding to capacitor i, This represents the energy storage state of the j1-th storage capacitor among the N1 storage capacitors connected to storage capacitor i. Let N1 be the weight corresponding to the j1-th storage capacitor, where N1 is an integer greater than or equal to 0. This represents the energy storage state of the j2nd storage capacitor among the N2 storage capacitors connected to the j1st storage capacitor. Let N2 be the weight corresponding to the j2-th storage capacitor, where N2 is an integer greater than or equal to 0, and so on. This represents the energy storage state of the jx-th storage capacitor among the Nx storage capacitors connected to the jx-1-th storage capacitor. Let Nx be the weight corresponding to the jx-th storage capacitor, where Nx is an integer greater than or equal to 0. , , ...until The values ​​decrease sequentially; Among them, the storage capacitor that most needs to be stored is the storage capacitor with the smallest Ki value among the storage capacitor clusters connected to the circuit breaker.

[0012] Optionally, before the circuit breaker performs local protection by drawing power from the corresponding storage capacitor, the circuit breaker is configured to perform the following operations: within the current cycle, the circuit breaker determines the storage capacitor most suitable for power drawing from the storage capacitor cluster based on the energy storage state of the corresponding storage capacitor in the storage capacitor cluster; the circuit breaker performs local protection by drawing power from the corresponding storage capacitor, including: the circuit breaker performs local protection by drawing power from the storage capacitor most suitable for power drawing.

[0013] Optionally, the circuit breaker is calculated using the following formula: ; in, This represents the energy storage state of any storage capacitor i connected to the circuit breaker in the storage capacitor cluster during the current period. To store the weight corresponding to capacitor i, This represents the energy storage state of the t1-th storage capacitor among the M1 storage capacitors connected to storage capacitor i and also connected to other circuit breakers. Let M1 be the weight corresponding to the t1-th storage capacitor, where M1 is an integer greater than or equal to 0. This indicates the energy storage state of the t2th storage capacitor among the M2 storage capacitors that are connected to the t1th storage capacitor and also connected to other circuit breakers. Let M2 be the weight corresponding to the t2th storage capacitor, where M2 is an integer greater than or equal to 0, and so on. This represents the energy storage state of the tx-th storage capacitor among the Mx storage capacitors that are connected to the (tx-1)-th storage capacitor and are also connected to other circuit breakers. Let Mx be the weight corresponding to the (tx-1)th storage capacitor, where Mx is an integer greater than or equal to 0. , , ...until The values ​​decrease sequentially; Among them, the most suitable storage capacitors for power extraction are: storage capacitor clusters connected to circuit breakers. The storage capacitor with the largest value.

[0014] Optionally, before detecting an anomaly in the power grid line, the circuit breaker is also configured to perform the following operations: the circuit breaker acquires the continuous information of voltage and current of the power grid line at a preset time point in the current cycle; the circuit breaker's processing chip analyzes the continuous information of voltage and current through a lightweight model built into the processing chip to determine the probability of an anomaly in the power grid line in the current cycle.

[0015] Optionally, the continuous voltage and current information includes voltage and current at multiple moments. The circuit breaker's processing chip analyzes the continuous voltage and current information using a lightweight model built into the processing chip to determine the probability of grid line anomalies in the current cycle. This includes: the circuit breaker interleaving the voltage and current at multiple moments according to energy levels to obtain multiple interleaved voltage and current data. The interleaved voltage and current data includes multiple sets of voltages and multiple sets of currents. Each set of voltages includes voltages ordered in descending or ascending order of energy level, and each set of currents includes currents ordered in descending or ascending order of energy level. If a voltage of a corresponding energy level is missing from the voltages at multiple moments, the voltage of that energy level is set to 0. Similarly, if a current of a corresponding energy level is missing from the currents at multiple moments, the voltage of that energy level is set to 0. The circuit breaker's processing chip analyzes the interleaved voltage and current data using a lightweight model built into the processing chip to determine the probability of grid line anomalies in the current cycle.

[0016] In summary, the above-mentioned circuit breaker has the following technical advantages: Because the circuit breaker draws power from the power grid line it is connected to and stores the obtained energy in a corresponding storage capacitor, even if the circuit breaker's battery fails, requires maintenance, or has insufficient power, it can still draw power from the storage capacitor to perform local protection if an anomaly is detected in the power grid line. This improves the reliability of the circuit breaker's local protection performance. Furthermore, since the circuit breaker also reports information instructing it to perform local protection and its location to the maintenance center, the center can promptly identify the location of the faulty power grid line and conduct timely repairs, minimizing losses caused by the fault. Attached Figure Description

[0017] Figure 1 A schematic diagram of the power system provided in the embodiments of this application; Figure 2 The circuit breaker provided in this application embodiment features deep integration of BeiDou positioning, intelligent local protection, and capacitor power supply. Detailed Implementation

[0018] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0019] This application will present various aspects, embodiments, or features relating to systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that individual systems may include additional devices, components, modules, etc., and / or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these approaches are also possible.

[0020] Furthermore, in the embodiments of this application, the words "exemplary," "for example," etc., are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the term "exemplary" is intended to present the concept in a concrete manner.

[0021] In the embodiments of this application, the meanings they express are matching unless the distinction is emphasized. "of," "corresponding (relevant)," and "corresponding" can sometimes be used interchangeably; it should be noted that the meanings they express are matching unless the distinction is emphasized. Furthermore, the " / " mentioned in this application can be used to indicate an "or" relationship.

[0022] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0023] For example, Figure 1 A schematic diagram of the power system structure is shown, such as... Figure 1 As shown, the power system includes circuit breakers, power grid lines, and a cluster of storage capacitors.

[0024] Circuit breakers can be multifunctional, for example, they can be connected to a power grid line to provide intelligent local protection for that line. This circuit breaker can be powered not only by a traditional battery but also by drawing power from the connected power grid line, storing the extracted energy in corresponding storage capacitors within a storage capacitor cluster. When the power grid line experiences an anomaly, the circuit breaker can draw power from both the battery and the storage capacitors in the cluster to perform local protection, achieving intelligent dual backup for local protection and improving its reliability. Furthermore, the circuit breaker incorporates a processing chip that allows it to monitor and analyze the power grid line's status.

[0025] A storage capacitor cluster can contain multiple storage capacitors. One or more of these storage capacitors can be directly connected (or electrically coupled) to a circuit breaker, and the storage capacitors can also be connected (or electrically coupled) to each other. This allows the circuit breaker to be directly or indirectly connected (or electrically coupled) to each storage capacitor, enabling the storage of electrical energy into or from each storage capacitor. One or more storage capacitors in the storage capacitor cluster can also be directly or indirectly connected (or electrically coupled) to other circuit breakers.

[0026] For example, Figure 2 The circuit breaker with deep integration of BeiDou positioning and intelligent local protection capacitor power supply provided in this application embodiment (hereinafter referred to as the circuit breaker) can be configured to perform the following operations: Step S1: The circuit breaker draws power from the power grid line connected to it and stores the obtained power in the corresponding storage capacitor.

[0027] For example, a circuit breaker can first monitor the state of the power grid to determine whether it is the right time to draw power. That is, it will only draw power from the power grid when it is suitable to draw power, such as when the state of the power grid is relatively stable and the load is relatively low.

[0028] Specifically, the circuit breaker can periodically acquire the status of the power grid lines for easy understanding. For the current cycle, the circuit breaker can acquire the continuous voltage and current information of the power grid lines at a preset time point (such as the start time of the current cycle). This continuous voltage and current information includes the voltage and current at multiple moments, and the number of moments can be selected according to actual conditions, such as 20 or 30. The circuit breaker's processing chip then analyzes the continuous voltage and current information using a lightweight model built into the chip to determine whether the current cycle is a suitable time to draw power. Considering the relatively low performance of the circuit breaker's processing chip, its lightweight model can be a model with low computational overhead, such as a fast neural network model. In this case, the circuit breaker needs to preprocess the voltage and current at multiple moments to ensure that the voltage and current at each moment are structured before being input into the fast neural network model, allowing the fast neural network model to obtain accurate results even with limited computational power.

[0029] For example, a circuit breaker interleaves the voltages and currents at multiple moments according to energy levels, resulting in multiple interleaved voltages and currents. These interleaved voltages and currents include multiple sets of voltages and currents. Each voltage set includes voltages ordered by energy level from high to low or low to high, and each current set includes currents ordered by energy level from high to low or low to high. If a voltage at a corresponding energy level is missing from the voltages at multiple moments, the voltage at that energy level is set to 0. Similarly, if a current at a corresponding energy level is missing from the currents at multiple moments, the voltage at that energy level is set to 0. In other words, if a set of interleaved currents / voltages lacks a corresponding voltage and current at multiple moments, the value corresponding to that energy level is set to 0 for that set of currents / voltages.

[0030] To facilitate understanding, let's illustrate with an example, taking the current at multiple moments as an example. There are 10 moments, arranged in chronological order: 110, 107, 112, 108, 115, 116, 108, 110, 111, 108. We set three energy levels, from lowest to highest: Energy Level 1 (105, 108], Energy Level 2 (108, 112], and Energy Level 3 (112, 116]. After interleaving, each group is sorted according to the three energy levels from lowest to highest, resulting in the following: Group 1: 0 (i.e., initially there is no 110, so it doesn't belong to Energy Level 1, therefore the voltage of the corresponding energy level is set to 0), 110 (i.e., the first one belongs to Energy Level 2), 115 (i.e., the first one belongs to Energy Level 2), 115 (i.e., the first one belongs to Energy Level 2), 115 (i.e., the first one belongs to Energy Level 2), 116 (i.e., the first one belongs to Energy Level 2), 117 (i.e., the first one belongs to Energy Level 2), 118 (i.e., the first one belongs to Energy Level 2), 119 (i.e., the first one belongs to Energy Level 2), 110 (i.e., the first one belongs to Energy Level 2), 119 ... Group 1: 107 (i.e., the first one belongs to energy level 1), 112 (i.e., the second one belongs to energy level 2), 116 (i.e., the second one belongs to energy level 3); Group 2: 108 (i.e., the second one belongs to energy level 1), 110 (i.e., the third one belongs to energy level 2), 0 (no one belongs to energy level 3, therefore the voltage of the corresponding energy level is set to 0); Group 3: 108 (i.e., the third one belongs to energy level 1). The first group consists of 110 (the fourth one belongs to the second energy level), 0 (there is no one belonging to the third energy level, so the voltage of the corresponding energy level is set to 0), and the fifth group consists of 108 (the fourth one belongs to the first energy level), 0 (there is no one belonging to the second energy level, so the voltage of the corresponding energy level is set to 0), and 0 (there is no one belonging to the third energy level, so the voltage of the corresponding energy level is set to 0). The final interleaved currents are: 0, 110, 115, 107, 112, 116, 108, 110, 0, 108, 110, 0, 108, 0, 0. It can be seen that the final interleaved currents are filled with multiple zero elements, making the values ​​of the interleaved currents more volatile and better reflecting the energy level. In this way, the circuit breaker's processing chip, through a lightweight model built into the processing chip, analyzes the interleaved voltages and currents to determine whether the current cycle is a power-drawing opportunity, and this power-drawing opportunity is relatively more accurate.

[0031] Therefore, if it is an opportune time to draw power, the circuit breaker draws power from the grid line and stores the obtained energy in the corresponding storage capacitor. This corresponding storage capacitor can be the most suitable capacitor for energy storage to improve energy storage efficiency. For example, the circuit breaker draws power from the grid line, and it can determine the storage capacitor that most needs energy storage based on the energy storage status of the corresponding storage capacitors in the storage capacitor cluster. Thus, the circuit breaker stores the obtained energy in the storage capacitor that most needs energy storage.

[0032] For example, a circuit breaker performs calculations using the following formula: ; in, This represents the energy storage state (which can be the current charge level, as will be repeated below) of any storage capacitor i connected to the circuit breaker in the storage capacitor cluster. To store the weight corresponding to capacitor i, This represents the energy storage state of the j1-th storage capacitor among the N1 storage capacitors connected to storage capacitor i. Let N1 be the weight corresponding to the j1-th storage capacitor, where N1 is an integer greater than or equal to 0. This represents the energy storage state of the j2nd storage capacitor among the N2 storage capacitors connected to the j1st storage capacitor. Let N2 be the weight corresponding to the j2-th storage capacitor, where N2 is an integer greater than or equal to 0, and so on. This represents the energy storage state of the jx-th storage capacitor among the Nx storage capacitors connected to the jx-1-th storage capacitor. Let Nx be the weight corresponding to the jx-th storage capacitor, where Nx is an integer greater than or equal to 0. , , ...until The values ​​decrease sequentially; Among them, the storage capacitor that most needs energy storage is the one with the smallest Ki value among the storage capacitors in the storage capacitor cluster connected to the circuit breaker. This means evaluating the total charge of each storage capacitor and the total charge of all storage capacitors directly or indirectly connected (or electrically coupled) to it, and selecting the storage capacitor with the smallest total charge for energy storage to improve energy storage efficiency. Therefore, since the storage capacitors directly or indirectly connected (or electrically coupled) to each storage capacitor are usually different, it is necessary to evaluate the total charge of each storage capacitor.

[0033] Step S2: When an abnormality is detected in the power grid line, the circuit breaker obtains power from the corresponding storage capacitor to perform local protection, and the circuit breaker also reports the abnormality information to the operation and maintenance center.

[0034] Abnormal information can instruct the circuit breaker to perform local protection. The abnormal information may include the location information of the circuit breaker, which is obtained through BeiDou positioning.

[0035] For example, before the circuit breaker draws power from the corresponding storage capacitor to perform local protection, the circuit breaker is configured to perform the following operations: The circuit breaker can periodically determine the most suitable storage capacitor for power extraction within each cycle. Taking the current cycle as an example, within the current cycle (such as at any point in time within the current cycle), the circuit breaker can determine the most suitable storage capacitor for power extraction from the storage capacitor cluster based on the energy storage state of the corresponding storage capacitor. Therefore, the circuit breaker performs local protection by obtaining power from the corresponding storage capacitor, including: the circuit breaker performs local protection by obtaining power from the most suitable storage capacitor for power extraction.

[0036] For example, to determine the most suitable storage capacitor for current power draw, the circuit breaker can perform the calculation using the following formula: ; in, This represents the energy storage state of any storage capacitor i connected to the circuit breaker in the storage capacitor cluster during the current period. To store the weight corresponding to capacitor i, This represents the energy storage state of the t1-th storage capacitor among the M1 storage capacitors connected to storage capacitor i and also connected to other circuit breakers. Let M1 be the weight corresponding to the t1-th storage capacitor, where M1 is an integer greater than or equal to 0. This indicates the energy storage state of the t2th storage capacitor among the M2 storage capacitors that are connected to the t1th storage capacitor and also connected to other circuit breakers. Let M2 be the weight corresponding to the t2th storage capacitor, where M2 is an integer greater than or equal to 0, and so on. This represents the energy storage state of the tx-th storage capacitor among the Mx storage capacitors that are connected to the (tx-1)-th storage capacitor and are also connected to other circuit breakers. Let Mx be the weight corresponding to the (tx-1)th storage capacitor, where Mx is an integer greater than or equal to 0. , , ...until The values ​​decrease sequentially; Among them, the most suitable storage capacitors for power extraction are: storage capacitor clusters connected to circuit breakers. The storage capacitor with the largest value is selected, similar to the above. In this case, the storage capacitor with the most abundant overall power can be chosen for power extraction. The impact of power extraction on other circuit breakers connected to this storage capacitor cluster is also minimized. In other words, this strategy not only requires selecting a storage capacitor capable of extraction but also minimizing the impact of power extraction on other circuit breakers.

[0037] In addition, the circuit breaker is configured to perform the following operations before detecting any abnormality in the power grid lines: The circuit breaker acquires continuous information on the voltage and current of the power grid line at a preset time point in the current cycle; The circuit breaker's processing chip analyzes continuous voltage and current information using a lightweight model built into the chip to determine the probability of grid line anomalies within the current cycle. For example, the continuous voltage and current information can include voltage and current data at multiple moments. The circuit breaker interleaves these multiple moments' voltages and currents according to energy levels, resulting in interleaved voltage and current sets. Each voltage set includes voltages ordered from high to low or low to high energy levels, and each current set includes currents ordered from high to low or low to high energy levels. If a voltage at a specific energy level is missing from multiple moments' voltages, that voltage level is set to 0. Similarly, if a current at a specific energy level is missing from multiple moments' currents, that voltage level is set to 0. The circuit breaker's processing chip analyzes the interleaved voltage and current data using a lightweight model built into the chip to determine the probability of grid line anomalies within the current cycle and reports this probability to the maintenance center. It should be understood that the principle of their interweaving can be referred to in the relevant introduction above, and will not be repeated here.

[0038] In summary, because the circuit breaker draws power from the power grid line it is connected to and stores the obtained energy in a corresponding storage capacitor, even if the circuit breaker's battery fails, requires maintenance, or has insufficient power, it can still draw power from the storage capacitor to perform local protection when an anomaly is detected in the power grid line. This improves the reliability of the circuit breaker's local protection performance. Furthermore, since the circuit breaker also reports information instructing it to perform local protection and its location to the maintenance center, the maintenance center can promptly identify the location of the faulty power grid line and conduct timely repairs, minimizing losses caused by the fault.

[0039] It should also be understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced synchronous DRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0040] The above embodiments can be implemented, in whole or in part, by software, hardware (such as circuits), firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or scientific data center to another website, computer, server, or scientific data center via wired (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a scientific data storage device such as a server or scientific data center that contains one or more sets of available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. A semiconductor medium can be a solid-state drive.

[0041] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.

[0042] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be a single item or multiple items.

[0043] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0044] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0045] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0046] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and 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 through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0047] 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.

[0048] In addition, the functional units in the various embodiments of this application 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.

[0049] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion 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 described in the various embodiments of this application. 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.

[0050] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A circuit breaker with deep integration of BeiDou positioning, intelligent local protection, and capacitor power supply, characterized in that, The circuit breaker is configured to perform the following operations: The circuit breaker draws power from the power grid line connected to it and stores the obtained electrical energy in a corresponding storage capacitor. In the event of an anomaly detected in the power grid line, the circuit breaker obtains power from the corresponding storage capacitor to perform local protection. The circuit breaker also reports the anomaly information to the operation and maintenance center. The anomaly information instructs the circuit breaker to perform local protection. The anomaly information includes the location information of the circuit breaker, which is obtained through BeiDou positioning.

2. The method according to claim 1, characterized in that, The circuit breaker draws power from the power grid line connected to it and stores the obtained electrical energy in a corresponding storage capacitor, including: The circuit breaker determines whether it is an opportune time to draw power by monitoring the status of the power grid lines. If it is a time to draw power, the circuit breaker draws power from the power grid line and stores the obtained power in the corresponding storage capacitor.

3. The method according to claim 2, characterized in that, The circuit breaker determines whether it is an opportune time to draw power by monitoring the status of the power grid lines, including: The circuit breaker acquires continuous information on the voltage and current of the power grid line at a preset time point in the current cycle. The circuit breaker's processing chip analyzes the continuous information of voltage and current using a lightweight model built into the processing chip to determine whether the current cycle is a time for power extraction.

4. The method according to claim 3, characterized in that, The continuous voltage and current information includes voltage and current at multiple moments. The circuit breaker's processing chip analyzes the continuous voltage and current information using a lightweight model built into the processing chip to determine whether the current cycle is a power-drawing opportunity, including: The circuit breaker interleaves the voltages and currents at the multiple moments according to energy levels to obtain multiple interleaved voltages and currents. The multiple interleaved voltages and currents include multiple sets of voltages and multiple sets of currents. Each set of voltages includes voltages ordered in descending or ascending order of energy level, and each set of currents includes currents ordered in descending or ascending order of energy level. If a voltage of a corresponding energy level is missing from the voltages at the multiple moments, the voltage of the corresponding energy level is set to 0. If a current of a corresponding energy level is missing from the currents at the multiple moments, the voltage of the corresponding energy level is set to 0. The processing chip of the circuit breaker analyzes the multiple voltages and currents after the interleaving using a lightweight model built into the processing chip to determine whether the current cycle is a time for power extraction.

5. The method according to claim 2, characterized in that, The circuit breaker draws power from the power grid line and stores the obtained electrical energy in a corresponding storage capacitor, including: The circuit breaker draws power from the power grid line; The circuit breaker determines the storage capacitor that most needs energy storage from the storage capacitor cluster based on the energy storage state of the corresponding storage capacitor in the storage capacitor cluster. The circuit breaker stores the electrical energy obtained from the power supply into the storage capacitor that currently needs the most energy storage.

6. The method according to claim 5, characterized in that, The circuit breaker is calculated using the following formula: ； in, This indicates the energy storage state of any one of the storage capacitors i in the storage capacitor cluster that is connected to the circuit breaker. The weight corresponding to the storage capacitor i, This indicates the energy storage state of the j1-th storage capacitor among the N1 storage capacitors connected to the i-th storage capacitor. Let N1 be the weight corresponding to the j1th storage capacitor, where N1 is an integer greater than or equal to 0. This indicates the energy storage state of the j2nd storage capacitor among the N2 storage capacitors connected to the j1st storage capacitor. The weight corresponding to the j2th storage capacitor is N2, where N2 is an integer greater than or equal to 0, and so on. This represents the energy storage state of the jx-th storage capacitor among the Nx storage capacitors connected to the jx-1-th storage capacitor. Let Nx be the weight corresponding to the jx-th storage capacitor, where Nx is an integer greater than or equal to 0. , , ...until The values ​​decrease sequentially; Among them, the storage capacitor that most needs to be stored is the storage capacitor with the smallest Ki value among the storage capacitors in the storage capacitor cluster and connected to the circuit breaker.

7. The method according to any one of claims 1-6, characterized in that, Before the circuit breaker draws power from its corresponding storage capacitor to perform local protection, the circuit breaker is configured to perform the following operations: Within the current cycle, the circuit breaker determines the most suitable storage capacitor for power extraction from the storage capacitor cluster based on the energy storage state of the corresponding storage capacitor in the storage capacitor cluster. The circuit breaker draws electrical energy from a corresponding storage capacitor to perform local protection, including: The circuit breaker performs local protection by drawing power from the storage capacitor that is currently most suitable for power supply.

8. The method according to claim 7, characterized in that, The circuit breaker is calculated using the following formula: ； in, This indicates the energy storage state of any one of the storage capacitors i in the storage capacitor cluster that is connected to the circuit breaker during the current period. The weight corresponding to the storage capacitor i, This indicates the energy storage state of the t1th storage capacitor among the M1 storage capacitors connected to the storage capacitor i and also connected to other circuit breakers. Let M1 be the weight corresponding to the t1-th storage capacitor, where M1 is an integer greater than or equal to 0. This indicates the energy storage state of the t2th storage capacitor among the M2 storage capacitors that are connected to the t1th storage capacitor and are also connected to other circuit breakers. M2 represents the weight corresponding to the t2th storage capacitor, where M2 is an integer greater than or equal to 0, and so on. This represents the energy storage state of the tx-th storage capacitor among the Mx storage capacitors that are connected to the (tx-1)-th storage capacitor and are also connected to other circuit breakers. Let Mx be the weight corresponding to the (tx-1)th storage capacitor, where Mx is an integer greater than or equal to 0. , , ...until The values ​​decrease sequentially; The storage capacitor most suitable for power extraction is: among the storage capacitors in the storage capacitor cluster connected to the circuit breaker. The storage capacitor with the largest value.

9. The method according to claim 1, characterized in that, Prior to detecting the abnormality in the power grid line, the circuit breaker is also configured to perform the following operations: The circuit breaker acquires continuous information on the voltage and current of the power grid line at a preset time point in the current cycle. The circuit breaker's processing chip analyzes the continuous information of voltage and current using a lightweight model built into the processing chip to determine the probability of an anomaly in the power grid line during the current period.

10. The method according to claim 9, characterized in that, The continuous voltage and current information includes voltage and current at multiple moments. The circuit breaker's processing chip analyzes the continuous voltage and current information using a lightweight model built into the processing chip to determine the probability of an anomaly in the power grid line within the current period, including: The circuit breaker interleaves the voltages and currents at the multiple moments according to energy levels to obtain multiple interleaved voltages and currents. The multiple interleaved voltages and currents include multiple sets of voltages and multiple sets of currents. Each set of voltages includes voltages ordered in descending or ascending order of energy level, and each set of currents includes currents ordered in descending or ascending order of energy level. If a voltage of a corresponding energy level is missing from the voltages at the multiple moments, the voltage of the corresponding energy level is set to 0. If a current of a corresponding energy level is missing from the currents at the multiple moments, the voltage of the corresponding energy level is set to 0. The circuit breaker's processing chip analyzes multiple voltages and currents after interleaving using a lightweight model built into the processing chip to determine the probability of an anomaly in the power grid line during the current cycle.

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