Circuit breaker control method, device, equipment, storage medium and program product

By intelligently controlling the circuit breaker, using speed information and circuit breaker status to generate tripping signals, the problem of unintelligent circuit control in the existing technology is solved, the function of automatically disconnecting the circuit is realized, and the efficiency of power resource utilization is improved.

CN118300045BActive Publication Date: 2025-03-11CSG POWER GENERATION CO LTD MAINT & TEST CO +1
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202410656706.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-24
Publication Date
2025-03-11
Estimated Expiration
2044-05-24

AI Technical Summary

Technical Problem

The control of the circuit breaker in the prior art is not intelligent enough to cut off the circuit in time when the power supply system fails to protect the generator set.

Method used

By obtaining the actual speed information of the target unit, a frequency signal is generated when the speed meets the preset conditions, and when the target circuit breaker is in the closing position, a pulse signal is generated based on the frequency signal, and a trip signal is finally generated to control the circuit breaker to disconnect.

Benefits of technology

Intelligent gate opening control of circuit breakers is realized, and the circuit can be automatically disconnected in the event of a failure, reducing labor costs and promoting the optimal allocation of power resources.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118300045B_ABST
    Figure CN118300045B_ABST
Patent Text Reader

Abstract

The present disclosure provides a circuit breaker control method, device, equipment, storage medium and program product. The circuit breaker control method includes: obtaining the actual speed information of the target unit; when the actual speed information meets the preset speed condition, generating a frequency signal; obtaining the state information of the target circuit breaker, when the state information meets the preset state condition, generating a pulse signal based on the frequency signal; according to the pulse signal, generating a trip signal and sending it to the target circuit breaker to control the target circuit breaker to disconnect. The present disclosure can realize intelligent opening control of the circuit breaker, without manual control, reducing labor costs, and promoting the optimal allocation of power resources.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present disclosure relates to the technical field of power grid security prevention, and in particular to a circuit breaker control method, device, equipment, storage medium and program product. Background Art

[0002] Generator sets can supply power to the power grid. However, in some cases, the power supply system where the generator sets are located may be overloaded or short-circuited, causing fire and other dangers. In order to solve this problem, people have developed circuit breakers. Circuit breakers are important control and protection equipment in low-voltage power distribution systems. They can quickly break the fault current when overload or short-circuit faults occur in the power distribution system to protect the power distribution system and electrical equipment. They can also be used for infrequent on-off control operations. The stability and reliability of circuit breaker performance are of great significance to the protection of power distribution systems, electrical equipment, and personal and property safety.

[0003] However, how to intelligently control the circuit breaker so that it can cut off the circuit and protect the generator set in time when the power supply system fails is a problem that needs to be solved at present. Summary of the invention

[0004] The present disclosure provides a circuit breaker control method, device, equipment, storage medium and program product, which are used to solve the problem that the control of circuit breakers in the prior art is not intelligent enough.

[0005] In a first aspect, the present disclosure provides a circuit breaker control method, comprising the following steps:

[0006] Obtain the actual speed information of the target unit;

[0007] When the actual speed information meets the preset speed condition, a frequency signal is generated;

[0008] Acquire status information of the target circuit breaker, and when the status information meets the preset status condition, generate a pulse signal based on the frequency signal;

[0009] A pulse signal is generated to generate a trip signal and sent to the target circuit breaker to control the target circuit breaker to open.

[0010] In some embodiments of the present disclosure, the speed condition includes that the actual speed information indicates that the actual speed value of the target unit does not reach a first proportion of the preset speed value, the actual speed information indicates that the actual speed value of the target unit is not zero;

[0011] When the actual speed information meets the preset speed condition, a frequency signal is generated, including:

[0012] When the actual speed information indicates that the actual speed value of the target unit does not reach a first proportion of the preset speed value, or the actual speed information indicates that the actual speed value of the target unit is not zero, a frequency signal is generated.

[0013] In some embodiments of the present disclosure, the state condition is that the target circuit breaker is in the closed position;

[0014] When the state information meets the preset state condition, a pulse signal is generated based on the frequency signal, including:

[0015] When the state information indicates that the target circuit breaker is in the closed position, a pulse signal is generated based on the frequency signal.

[0016] In some embodiments of the present disclosure, the circuit breaker control method further includes the following steps:

[0017] receiving a control signal, and controlling the target circuit breaker to disconnect according to the control signal;

[0018] According to the pulse signal, a trip signal is generated and sent to the target circuit breaker to control the target circuit breaker to disconnect, including:

[0019] When no control signal is received within a preset time period after the pulse signal is generated, a trip signal is generated and sent to the target circuit breaker to control the target circuit breaker to disconnect.

[0020] In some embodiments of the present disclosure, the circuit breaker control method further includes the following steps:

[0021] When the reset signal is obtained within the preset time period, the generation of the trip signal stops.

[0022] In some embodiments of the present disclosure, the method of generating a reset signal includes:

[0023] Within a preset time period after the pulse signal is generated, the actual speed information of the target unit is continuously obtained, and a reset signal is generated when the actual speed information indicates that the actual speed value of the target unit reaches a first proportion of the preset speed value, or the actual speed information indicates that the actual speed value of the target unit is zero.

[0024] In a second aspect, the present disclosure further provides a circuit breaker control device, comprising:

[0025] An acquisition module is used to obtain the actual speed information of the target unit;

[0026] A first generating module, used for generating a frequency signal when the actual speed information meets the preset speed condition;

[0027] A second generating module is used to obtain the state information of the target circuit breaker, and when the state information meets the preset state condition, generate a pulse signal based on the frequency signal;

[0028] The control module is used to generate a trip signal according to the pulse signal and send the trip signal to the target circuit breaker to control the target circuit breaker to disconnect.

[0029] In a third aspect, the present disclosure further provides a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the circuit breaker control method of any of the above embodiments when executing the computer program.

[0030] In a fourth aspect, the present disclosure further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the circuit breaker control method of any of the above embodiments is implemented.

[0031] In a fifth aspect, the present disclosure further provides a computer program product, including a computer program, which implements the circuit breaker control method of any of the above embodiments when executed by a processor.

[0032] The circuit breaker control method, device, equipment, storage medium and program product provided by the present disclosure may have / at least have the following advantages:

[0033] The above-mentioned circuit breaker control method, device, equipment, storage medium and program product can monitor the speed value of the generator rotor in the target unit in real time, and obtain the frequency signal of the target unit when the speed value meets the specific speed condition. Then, when it is determined that the contacts of the target circuit breaker are in the position required by the preset state conditions, a trip signal is automatically generated to control the circuit breaker to disconnect the circuit, thereby realizing intelligent opening control of the circuit breaker. The above-mentioned circuit breaker control method does not require manual control, reduces labor costs, and promotes the optimal allocation of power resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 is an application environment diagram of a circuit breaker control method in an embodiment;

[0036] Figure 2 A schematic flow chart of a circuit breaker control method in one embodiment;

[0037] Figure 3 is a schematic structural diagram of a circuit breaker control device in one embodiment;

[0038] Figure 4 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment.

[0039] Description of reference numerals:

[0040] 101-controller, 102-unit, 103-circuit breaker, 104-grid; 2-circuit breaker control device, 201-acquisition module, 202-first generation module, 203-second generation module, 204-control module; 2-control module, 301-processor, 302-memory, 303-input / output interface, 304-communication interface, 305-system bus. DETAILED DESCRIPTION

[0041] In order to facilitate understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thorough and comprehensive.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present disclosure belongs. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0043] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that when the terms "consisting of" and / or "comprising" are used in this specification, the presence of the features, integers, steps, operations, elements and / or parts can be determined, but the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups is not excluded. At the same time, when used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0044] The circuit breaker control method provided in the embodiment of the present disclosure can be applied to Figure 1 In the application environment shown, the controller 101 can be directly or indirectly connected to the unit 102 and the circuit breaker 103 through wired or wireless communication, for example, through the power grid 104.

[0045] For example, the circuit breaker control method is applied to the controller 101, the controller 101 obtains the actual speed information of the target unit 102, and generates a frequency signal when the actual speed information of the target unit 102 meets the preset speed condition; then, the controller 101 obtains the status information of the target circuit breaker 103, and generates a pulse signal when the status information meets the preset status condition; finally, the controller 101 generates a tripping signal based on the pulse signal and sends it to the target circuit breaker 103 to control the target circuit breaker 103 to disconnect.

[0046] In some embodiments, a circuit breaker control method is provided. This embodiment uses the circuit breaker control method applied to a controller as an example. Figure 2 As shown, the circuit breaker control method includes steps S100-S400.

[0047] S100, obtaining actual rotation speed information of the target unit.

[0048] The target unit may refer to a generator unit that supplies power to the grid. The actual speed information of the target unit is used to indicate the actual speed value of the generator rotor in the target unit, usually expressed in revolutions per minute (rpm). The speed value of the generator rotor can reflect the operating status of the target unit when it is working, including the output power and frequency of the generator in the target unit. The higher the speed value of the generator rotor, the more electric energy the generator in the target unit generates, but it will also increase the wear and energy consumption of the target unit. By monitoring the actual speed information of the target unit, the operating status of the generator in the target unit can be understood, problems can be discovered in time, and adjustments and maintenance can be made to ensure the safe and stable operation of the target unit.

[0049] As an example, the controller can use a speed governor measuring device to collect actual speed information of the target unit. The speed governor measuring device measures the speed value by collecting signals generated by speed sensors on the rotor of the generator in the target unit. These speed sensors are usually installed on the rotor of the generator in the target unit and connected to the speed governor measuring device. The speed signals are transmitted to the speed governor measuring device for processing and analysis. The speed governor measuring device can accurately measure the actual speed value of the rotor of the generator in the target unit by analyzing these speed signals, and obtain the actual speed information and send it to the controller.

[0050] Alternatively, the controller can use the unit-side speed measuring device to collect the actual speed information of the target unit. The unit-side speed measuring device is equipped with two geared speed measuring probes, which can monitor the actual speed value of the generator rotor in the target unit in real time through external speed pulse sensors and voltage transformer signals. The unit-side speed measuring device serves as a backup for the speed measuring device of the speed governor. When the speed measuring device of the speed governor fails and cannot send the actual speed information to the controller, the actual speed value of the generator rotor in the target unit is accurately measured through pulse sensors and other devices, and the actual speed information is sent to the controller.

[0051] S200, when the actual speed information meets the preset speed condition, a frequency signal is generated.

[0052] The speed condition may be a range for limiting the speed value of the generator rotor in the target unit, and the frequency signal is used to indicate the operating frequency information of the target unit corresponding to the speed condition.

[0053] The operating frequency information of the target unit is used to indicate the frequency of the AC power output by the target unit, usually expressed in Hertz (Hz). The operating frequency information of the target unit can reflect the stability and operating status of the target unit. Changes in the operating frequency information will affect the operation of the target unit and various devices in the power supply system, including generators, transformers, motors, etc. If the frequency of the AC power output by the target unit deviates from the normally set frequency range value, it may cause the target unit and the equipment in the power supply system to malfunction or be damaged.

[0054] S300, acquiring status information of a target circuit breaker, and when the status information meets a preset status condition, generating a pulse signal based on a frequency signal.

[0055] The status information of the target circuit breaker refers to the status information of the contacts of the circuit breaker, which can be specifically used to indicate the position of the contacts of the circuit breaker. When the contacts of the circuit breaker are in the closed position, the power supply system where the target unit is located can normally supply power to the power grid. When the contacts of the circuit breaker are in the open position, the circuit of the power supply system where the target unit is located is disconnected.

[0056] Pre-set status conditions can be used to limit the contact positions of the circuit breaker.

[0057] The pulse signal refers to the set signal. When the controller generates a pulse signal, the controller can set Q15.7 to 1. Qm.n means that the data in the controller uses m bits to represent the integer part and n bits to represent the decimal part. A total of m+n+1 bits are required to represent the data. Q15.7 means that the integer part has 15 bits and the decimal part has 7 bits of data, and the controller sets it to 1.

[0058] S400, generating a trip signal according to the pulse signal and sending it to the target circuit breaker to control the target circuit breaker to disconnect.

[0059] The trip signal is used to control the target circuit breaker to place the contact in the open position to control the circuit of the power supply system where the target unit is located to be disconnected to prevent circuit damage or fire.

[0060] In the above circuit breaker control method, the controller can monitor the speed value of the generator rotor in the target unit in real time, and obtain the actual frequency of the AC power output by the target unit when the speed value is within a specific speed value range. Subsequently, when it is determined that the contacts of the target circuit breaker are in the position required by the preset state conditions, a trip signal is automatically generated to control the circuit breaker to disconnect the circuit, thereby realizing intelligent opening control of the circuit breaker. The above circuit breaker control method does not require manual control, reduces labor costs, and promotes the optimal allocation of power resources.

[0061] In some embodiments, the speed condition includes that the actual speed information indicates that the actual speed value of the target unit does not reach a first proportion of the preset speed value, and the actual speed information indicates that the actual speed value of the target unit is not zero;

[0062] For example, step S200 includes: when the actual speed information indicates that the actual speed value of the target unit does not reach a first proportion of the preset speed value, or the actual speed information indicates that the actual speed value of the target unit is not zero, generating a frequency signal.

[0063] The first ratio of the preset speed value may be 90% of the preset speed value.

[0064] After obtaining the actual speed value of the generator rotor in the target unit, the controller further determines whether the actual speed value of the generator rotor reaches a first proportion of the preset speed value. If it does not reach the first proportion of the preset speed value, a frequency signal is generated. If it reaches the first proportion of the preset speed value, the controller further determines whether the actual speed value of the generator rotor is zero. If it is not zero, a frequency signal is also generated.

[0065] In some embodiments, the state condition is that the target circuit breaker is in the closed position;

[0066] For example, step S300 includes: when the state information indicates that the target circuit breaker is in a closed position, generating a pulse signal based on the frequency signal.

[0067] After obtaining the state information of the contacts of the circuit breaker, the controller determines whether the contacts of the circuit breaker are in the closed position. If so, a pulse signal is generated; otherwise, no pulse signal is generated.

[0068] In some embodiments, the circuit breaker control method further includes:

[0069] receiving a control signal, and controlling the target circuit breaker to disconnect according to the control signal;

[0070] Step 208 includes: when no control signal is received within a preset time period after the pulse signal is generated, generating a trip signal and sending it to the target circuit breaker to control the target circuit breaker to disconnect.

[0071] The control signal may refer to a low frequency to interlock GCB open signal, and the control signal is used to instruct the contact of the target circuit breaker to open to disconnect the circuit of the power supply system where the target unit is located.

[0072] The preset duration may be, for example, 2 seconds.

[0073] After the controller generates a pulse signal, if it does not receive a control signal initiated by a staff member from the outside to control the target circuit breaker to disconnect within a preset time, it will automatically generate a trip signal to control the target circuit breaker to open.

[0074] In some embodiments, the circuit breaker control method further includes:

[0075] When the reset signal is obtained within the preset time period, the generation of the trip signal stops.

[0076] The reset signal refers to resetting the data that the controller sets to 1 according to the pulse signal to 0.

[0077] After the controller generates the pulse signal, if it detects within a preset time period a reset signal that resets the data set to 1 by the controller in step 206 to 0, the controller will no longer continue to generate the trip signal.

[0078] In some embodiments, a method of generating a reset signal includes:

[0079] Within a preset time period after the pulse signal is generated, the actual speed information of the target unit is continuously obtained, and a reset signal is generated when the actual speed information indicates that the actual speed value of the target unit reaches a first proportion of the preset speed value, or the actual speed information indicates that the actual speed value of the target unit is zero.

[0080] After generating the pulse signal, the controller continuously obtains the actual speed information of the target unit within a preset time period, and determines whether the newly acquired actual speed value of the generator rotor reaches the first proportion of the preset speed value. If it reaches the first proportion of the preset speed value, a reset signal is generated. If it does not reach the first proportion of the preset speed value, it further determines whether the actual speed value of the generator rotor is zero. If it is zero, a reset signal is also generated.

[0081] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0082] Based on the same inventive concept, the embodiment of the present disclosure also provides a circuit breaker control device for implementing the circuit breaker control method involved above. The implementation scheme for solving the problem provided by the circuit breaker control device is similar to the implementation scheme recorded in the above circuit breaker control method, so the specific limitations in one or more device embodiments provided below can refer to the limitations of the circuit breaker control method above, and will not be repeated here.

[0083] In some embodiments, Figure 3 As shown, a circuit breaker control device 2 is provided, comprising:

[0084] An acquisition module 201 is used to acquire actual speed information of a target unit;

[0085] The first generating module 202 is used to generate a frequency signal when the actual speed information meets the preset speed condition;

[0086] The second generating module 203 is used to obtain the state information of the target circuit breaker, and when the state information meets the preset state condition, generate a pulse signal based on the frequency signal;

[0087] The control module 204 is used to generate a trip signal according to the pulse signal and send it to the target circuit breaker to control the target circuit breaker to disconnect.

[0088] In some embodiments, the speed condition includes that the actual speed information indicates that the actual speed value of the target unit does not reach a first proportion of the preset speed value, and the actual speed information indicates that the actual speed value of the target unit is not zero;

[0089] The first generating module 202 is further configured to:

[0090] When the actual speed information indicates that the actual speed value of the target unit does not reach a first proportion of the preset speed value, or the actual speed information indicates that the actual speed value of the target unit is not zero, a frequency signal is generated.

[0091] In some embodiments, the state condition is that the target circuit breaker is in the closed position;

[0092] The second generating module 203 is further configured to:

[0093] When the state information indicates that the target circuit breaker is in the closed position, a pulse signal is generated based on the frequency signal.

[0094] In some embodiments, the control module 204 is further configured to:

[0095] receiving a control signal, and controlling the target circuit breaker to open according to the control signal; and

[0096] When no control signal is received within a preset time period after the pulse signal is generated, a trip signal is generated and sent to the target circuit breaker to control the target circuit breaker to disconnect.

[0097] In some embodiments, the control module 204 is further configured to:

[0098] When the reset signal is obtained within the preset time period, the generation of the trip signal stops.

[0099] In some embodiments, the control module 204 is further configured to:

[0100] Within a preset time period after the pulse signal is generated, the actual speed information of the target unit is continuously obtained, and a reset signal is generated when the actual speed information indicates that the actual speed value of the target unit reaches a first proportion of the preset speed value, or the actual speed information indicates that the actual speed value of the target unit is zero.

[0101] Each module in the above device can be implemented in whole or in part by software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module above.

[0102] In some embodiments, a control module 204 is provided. The computer device 3 may be a terminal, and its internal structure diagram may be as follows: Figure 4As shown. The computer device 3 includes a processor 301, a memory 302, an input / output interface 303, a communication interface 304, a display unit and an input device. Among them, the processor 301, the memory 302 and the input / output interface 303 are connected through a system bus 305, and the communication interface 304, the display unit and the input device are connected to the system bus 305 through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a circuit breaker control method is implemented. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0103] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the scheme of the present disclosure, and does not constitute a limitation on the computer device to which the scheme of the present disclosure is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0104] In some embodiments, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, each step of the above-mentioned circuit breaker control method is implemented.

[0105] In some embodiments, a computer program product is provided, including a computer program, and when the computer program product is executed by a processor, each step of the above-mentioned circuit breaker control method is implemented.

[0106] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided by the present disclosure can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided by the present disclosure may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided by the present disclosure may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, etc., but are not limited to this.

[0107] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features of the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0108] The above-described embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. A circuit breaker control method, characterized in that: include: Obtain the actual speed information of the target unit; When the actual speed information meets the preset speed condition, a frequency signal is generated; Acquire status information of a target circuit breaker, and when the status information meets a preset status condition, generate a pulse signal based on the frequency signal; According to the pulse signal, a trip signal is generated and sent to the target circuit breaker to control the target circuit breaker to disconnect; When a reset signal is obtained within a preset time period, the generation of the trip signal is stopped; When the actual speed information meets the preset speed condition, a frequency signal is generated, including: When the actual speed information indicates that the actual speed value of the target unit does not reach a first proportion of the preset speed value, or when the actual speed information reaches the first proportion of the preset speed value and the actual speed information indicates that the actual speed value of the target unit is not zero, generating the frequency signal; The method for generating the reset signal comprises: Within a preset time period after the pulse signal is generated, the actual speed information of the target unit is continuously obtained, and the reset signal is generated when the actual speed information indicates that the actual speed value of the target unit reaches a first proportion of the preset speed value, or the actual speed information indicates that the actual speed value of the target unit is zero.

2. The method according to claim 1, characterized in that: The circuit breaker control method further comprises: receiving a control signal, and controlling the target circuit breaker to disconnect according to the control signal; The step of generating a trip signal according to the pulse signal and sending the trip signal to a target circuit breaker to control the target circuit breaker to disconnect comprises: When the control signal is not received within a preset time period after the pulse signal is generated, a trip signal is generated and sent to the target circuit breaker to control the target circuit breaker to be disconnected.

3. The method according to claim 2, characterized in that The state condition is that the target circuit breaker is in a closed position; When the state information meets a preset state condition, generating a pulse signal based on the frequency signal includes: When the state information indicates that the target circuit breaker is in a closed position, the pulse signal is generated based on the frequency signal.

4. A circuit breaker control device, characterized in that: include: An acquisition module is used to obtain the actual speed information of the target unit; A first generating module, configured to generate a frequency signal when the actual speed information meets a preset speed condition; A second generating module is used to obtain status information of a target circuit breaker, and when the status information meets a preset status condition, generate a pulse signal based on the frequency signal; A control module, used for generating a trip signal according to the pulse signal and sending the trip signal to the target circuit breaker to control the target circuit breaker to disconnect; An auxiliary control module, configured to stop generating the trip signal when a reset signal is obtained within a preset time period; When the actual speed information meets the preset speed condition, a frequency signal is generated, including: When the actual speed information indicates that the actual speed value of the target unit does not reach a first proportion of the preset speed value, or when the actual speed information reaches the first proportion of the preset speed value and the actual speed information indicates that the actual speed value of the target unit is not zero, generating the frequency signal; The method for generating the reset signal comprises: Within a preset time period after the pulse signal is generated, the actual speed information of the target unit is continuously obtained, and the reset signal is generated when the actual speed information indicates that the actual speed value of the target unit reaches a first proportion of the preset speed value, or the actual speed information indicates that the actual speed value of the target unit is zero.

5. A computer device, characterized in that: include: Memory and processor; The memory stores a computer program, and the processor implements the steps of the circuit breaker control method according to any one of claims 1 to 3 when executing the computer program.

6. A computer-readable storage medium, characterized in that: A computer program is stored; when the computer program is executed by a processor, the steps of the circuit breaker control method according to any one of claims 1 to 3 are implemented.

7. A computer program product, characterized in that include: Computer program; when the computer program is executed by a processor, the steps of the circuit breaker control method according to any one of claims 1 to 3 are implemented.

Citation Information

Patent Citations

  • Multivariable monitoring and protecting system and method for fan grid-connected loop

    CN111734580A

  • Circuit breaker control method and device, computer equipment and storage medium

    CN113282029A