Precision iteration control method, device and equipment for phase selection circuit breaker and medium
By combining permanent magnet mechanism parameters and iterative learning mechanism to optimize the opening and closing control of the phase selection circuit breaker, the problem of accuracy degradation caused by wear was solved, and the opening and closing accuracy and power system stability were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-04-07
AI Technical Summary
The phase selection accuracy of existing phase-selecting circuit breakers decreases after the mechanism wears down, affecting long-term operational stability and power quality.
The actual opening and closing time is determined based on the parameters of the permanent magnet mechanism coil and the position information of the phase-selecting circuit breaker. The pre-breakdown time is calculated by combining the iterative learning mechanism, and the opening and closing commands are sent in advance to improve the driving accuracy of the permanent magnet mechanism.
It significantly improves the opening and closing accuracy of phase-selective circuit breakers, extends equipment life, and enhances power system stability and equipment lifespan.
Smart Images
Figure CN121813697A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medium-voltage power distribution network switchgear, and in particular to a method, device, equipment and medium for iterative control of the accuracy of phase selection circuit breakers. Background Technology
[0002] With increasing electricity demand and more complex power grid structures, the large-scale grid connection of new energy sources (such as wind power and photovoltaics) has led to increased grid volatility. To ensure power quality during grid load fluctuations, the switching frequency of parallel capacitor banks, a commonly used reactive power compensation device, is constantly increasing.
[0003] However, medium and low voltage power grids currently commonly use conventional circuit breakers for switching, which easily generate inrush currents and operational overvoltages, seriously affecting the safe and stable operation of the power grid. Phase-selective circuit breakers, by precisely controlling the phase of switch operation, can fundamentally suppress operational overvoltages and inrush currents, extend equipment lifespan, reduce maintenance cycles, and improve switching breaking capacity and power quality. However, the phase selection accuracy of phase-selective circuit breakers is affected by the coordinated operation of the controller, permanent magnet mechanism, and circuit breaker body. Currently, the phase selection controller can only send control signals to the permanent magnet mechanism, and its phase selection accuracy is highly dependent on the coordination accuracy of the permanent magnet mechanism and the circuit breaker body, requiring stringent manufacturing processes. However, after tens of thousands of life tests, due to mechanical wear, the phase selection accuracy will further decrease, thus affecting long-term operation.
[0004] In view of the above-mentioned technologies, seeking an iterative control method for improving the phase selection accuracy of phase-selection circuit breakers is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0005] The purpose of this application is to provide a method, apparatus, equipment, and medium for iterative control of the accuracy of a phase-selection circuit breaker. This can solve the problem in the prior art where mechanical wear further reduces the phase selection accuracy.
[0006] To address the aforementioned technical problems, this application provides an iterative control method for the accuracy of a phase-selective circuit breaker, comprising:
[0007] The actual opening and closing time of the phase-selecting circuit breaker is determined based on the coil parameters corresponding to the permanent magnet mechanism and the position information corresponding to the phase-selecting circuit breaker.
[0008] The target opening and closing time is determined based on the target phase angle of the phase-selective circuit breaker;
[0009] Based on the iterative learning mechanism, the pre-breakdown time corresponding to the actual opening and closing time and the target opening and closing time in different opening and closing event cycles is determined.
[0010] In the next opening and closing event cycle, the corresponding opening and closing command is sent to the permanent magnet mechanism in advance of the pre-breakdown time, so as to improve the accuracy of the permanent magnet mechanism driving the phase selection circuit breaker to perform corresponding actions based on the opening and closing command.
[0011] Preferably, determining the actual opening and closing time of the phase-selecting circuit breaker based on the coil parameters corresponding to the permanent magnet mechanism and the position information corresponding to the phase-selecting circuit breaker includes:
[0012] Obtain the coil current and magnetic flux from the coil parameters corresponding to the permanent magnet mechanism;
[0013] Obtain the initial contact position and target contact position from the position information corresponding to the phase-selective circuit breaker;
[0014] The actual opening and closing times are determined based on the coil current, magnetic flux, initial contact position, and target contact position.
[0015] Preferably, the actual opening and closing time is determined based on the coil current, magnetic flux, initial contact position, and target contact position, including:
[0016] The corresponding electromagnetic driving force is determined based on the coil current and magnetic flux.
[0017] The contact motion equation is constructed based on electromagnetic driving force and mechanical reaction force;
[0018] Substitute the initial position and target position of the contact into the contact motion equation to obtain the span time between the contact and the target position, and use the span time as the actual opening and closing time.
[0019] Preferably, the pre-breakdown time corresponding to the actual opening and closing time and the target opening and closing time in different opening and closing event cycles is determined according to the iterative learning mechanism, including:
[0020] Determine the time error corresponding to the current opening and closing event cycle based on the actual opening and closing time and the target opening and closing time.
[0021] The pre-breakdown time corresponding to the time error is determined based on the iterative learning formula corresponding to the iterative learning mechanism.
[0022] Preferably, the iterative learning formula is:
[0023] ;
[0024] in, This represents the pre-breakdown time corresponding to the (k+1)th iteration; This represents the pre-breakdown time corresponding to the k-th iteration; This represents the time error corresponding to the k-th iteration; and These are the iterative learning coefficients.
[0025] Preferably, it further includes:
[0026] The corresponding error change rate is determined based on the time error between any two adjacent iterations.
[0027] The iteration stops when the rate of change of error is less than the threshold for the termination of the iteration.
[0028] Preferably, it further includes:
[0029] If the absolute value of the time error corresponding to any iteration is less than the iteration termination error threshold, then the iteration stops.
[0030] On the other hand, this application also provides an iterative control device for the accuracy of a phase-selective circuit breaker, comprising:
[0031] The actual opening and closing time determination module is used to determine the actual opening and closing time of the phase-selecting circuit breaker based on the coil parameters corresponding to the permanent magnet mechanism and the position information of the phase-selecting circuit breaker.
[0032] The target opening and closing time determination module is used to determine the corresponding target opening and closing time based on the target phase angle of the phase-selecting circuit breaker.
[0033] The pre-breakdown time determination module is used to determine the pre-breakdown time corresponding to the actual opening and closing time and the target opening and closing time in different opening and closing event cycles based on the iterative learning mechanism.
[0034] The circuit breaker opening and closing command issuing module is used to send the corresponding circuit breaker opening and closing command to the permanent magnet mechanism in advance of the breakdown time in the next circuit breaker opening and closing event cycle, so as to improve the accuracy of the permanent magnet mechanism driving the phase selection circuit breaker to perform corresponding actions based on the circuit breaker opening and closing command.
[0035] On the other hand, this application also provides an electronic device, including a memory for storing computer programs;
[0036] The processor is used to execute computer programs to implement the steps of the above-described iterative control method for the accuracy of the phase-selective circuit breaker.
[0037] On the other hand, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the above-described phase selection circuit breaker accuracy iterative control method.
[0038] This application provides an iterative control method for the accuracy of a phase-selective circuit breaker. In this method, the coil parameters of the permanent magnet mechanism, the position information of the phase-selective circuit breaker, and the target opening and closing times are interconnected and fed back together. Then, an iterative learning mechanism is used to determine the pre-breakdown time corresponding to the actual opening and closing times obtained from the coil parameters of the permanent magnet mechanism and the position information of the phase-selective circuit breaker, as well as the target opening and closing times, in different opening and closing event cycles. This allows the corresponding opening and closing commands to be sent to the permanent magnet mechanism in advance during the next opening and closing event cycle, thereby improving the accuracy of the permanent magnet mechanism driving the phase-selective circuit breaker to perform corresponding actions based on the opening and closing commands. This design approach, through data interconnection and iterative control, can compensate for the time-varying characteristics of the mechanical and electromagnetic parameters of the phase-selective circuit breaker, adapt to different operating conditions, significantly improve the opening and closing accuracy, and enhance the stability of the power system and the lifespan of the equipment. Attached Figure Description
[0039] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0040] Figure 1 A flowchart of an iterative control method for the accuracy of a phase-selective circuit breaker provided in this application embodiment;
[0041] Figure 2 A structural diagram of the power system provided in the embodiments of this application;
[0042] Figure 3 A structural diagram of an iterative control device for the accuracy of a phase-selective circuit breaker, provided in another embodiment of this application;
[0043] Figure 4 A structural diagram of an electronic device provided in another embodiment of this application. Detailed Implementation
[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0045] The core of this application is to provide a method, device, equipment, and medium for iterative control of the accuracy of a phase-selective circuit breaker.
[0046] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0047] Figure 1 A flowchart of an iterative control method for the accuracy of a phase-selective circuit breaker provided in this application embodiment is shown below. Figure 1 As shown, it includes the following steps:
[0048] S10: Determine the actual opening and closing time of the phase-selecting circuit breaker based on the coil parameters corresponding to the permanent magnet mechanism and the position information corresponding to the phase-selecting circuit breaker.
[0049] S11: Determine the corresponding target opening and closing time based on the target phase angle of the phase-selecting circuit breaker.
[0050] In specific embodiments, the phase-selection circuit breaker accuracy iterative control method provided in this application is specifically applied to power systems including permanent magnet mechanisms, phase-selection circuit breakers, and phase-selection controllers (or central processing units), and is used in scenarios such as smart grids and industrial power distribution. Figure 2 As shown.
[0051] In this system, the phase selection controller acquires the coil parameters corresponding to the permanent magnet mechanism and the position information corresponding to the phase selection circuit breaker, and determines the actual opening and closing time of the phase selection circuit breaker. Specifically, it acquires the coil current and magnetic flux from the coil parameters (which can also be understood as electromagnetic operation data) and the initial and target positions of the contacts from the position information (which can also be understood as mechanical characteristic data); then, it determines the corresponding electromagnetic driving force based on the coil current and magnetic flux, and constructs the contact motion equation based on the electromagnetic driving force and mechanical reaction force; finally, it substitutes the initial and target positions of the contacts into the contact motion equation to obtain the span time between the contact's target position and the target position, and uses this span time as the actual opening and closing time.
[0052] It is easy to understand that in practical applications, the coil current and magnetic flux affect the actual opening and closing time. Therefore, in determining the actual opening and closing time, the coil current and magnetic flux are integrated, and the corresponding electromagnetic driving force is determined. Furthermore, since different phase-selective circuit breakers exhibit different contact motion equations under different scenarios or different opening and closing actions, this application proposes to construct a contact motion equation that conforms to the current scenario based on the electromagnetic driving force and mechanical reaction force. Finally, by substituting the initial and target contact positions from the position information into the contact motion equation, the time span between the contact's target position and the target position can be obtained, i.e., the actual opening and closing time.
[0053] Meanwhile, its phase selection controller also determines the corresponding target opening and closing time based on the target phase angle of the phase selection circuit breaker for subsequent operations. It should be noted that the target opening and closing time is also considered mechanical characteristic data.
[0054] It should be noted that the embodiments provided in this application are only one possible implementation method, but are not limited to this only implementation method. Users can set their own implementation methods according to their needs.
[0055] S12: Determine the pre-breakdown time corresponding to the actual opening and closing time and the target opening and closing time in different opening and closing event cycles based on the iterative learning mechanism.
[0056] S13: In the next opening and closing event cycle, send the corresponding opening and closing command to the permanent magnet mechanism in advance of the pre-breakdown time, so as to improve the accuracy of the permanent magnet mechanism driving the phase selection circuit breaker to perform corresponding actions based on the opening and closing command.
[0057] In a specific embodiment, step S12 is implemented as follows: the time error corresponding to the current opening / closing event cycle is determined based on the actual opening / closing time and the target opening / closing time; the pre-breakdown time corresponding to the time error is determined based on the iterative learning formula corresponding to the iterative learning mechanism. This design, which determines the pre-breakdown time corresponding to the time error based on the iterative learning mechanism, can continuously reduce the error in multiple opening / closing event cycles until the error meets the accuracy requirements.
[0058] The iterative learning formula is as follows:
[0059] ;
[0060] ;
[0061] in, This represents the pre-breakdown time corresponding to the (k+1)th iteration; This represents the pre-breakdown time corresponding to the k-th iteration; This represents the time error corresponding to the k-th iteration; This refers to the actual opening and closing time; The target opening and closing time; and These are the iterative learning coefficients.
[0062] It is not difficult to understand that the first opening and closing event cycle corresponds to the first iteration, and then in the second opening and closing event cycle, the corresponding opening and closing command is sent to the permanent magnet mechanism in advance of the pre-breakdown time obtained in the first iteration.
[0063] Furthermore, regarding the iterative learning coefficients In the process of understanding, it can also be understood as adaptive condition parameters to cope with other sudden changes.
[0064] In addition, an additional variable can be added to this iterative learning formula: the rate of change of error, the corresponding formula of which is as follows:
[0065] ;
[0066] in, This represents the error change rate corresponding to the k-th iteration; This represents the time error corresponding to the k-th iteration; This represents the time error corresponding to the (k-1)th iteration. The default value is... .
[0067] Furthermore, since this application uses an iterative learning mechanism to reduce errors, it is necessary to set a condition for ending the iteration to avoid wasting resources. That is, the iteration ends when the data in the current iteration meets the condition for ending the iteration. Specifically, the iteration stops when the rate of change of error is less than the iteration termination rate of change threshold; or the iteration stops if the absolute value of the time error corresponding to any iteration is less than the iteration termination error threshold (e.g., 0.1ms).
[0068] It should be noted that the embodiments provided in this application are only one possible implementation method, but are not limited to this only implementation method. Users can set their own implementation methods according to their needs.
[0069] This application provides an iterative control method for the accuracy of a phase-selective circuit breaker. In this method, the coil parameters of the permanent magnet mechanism, the position information of the phase-selective circuit breaker, and the target opening and closing times are interconnected and fed back together. Then, an iterative learning mechanism is used to determine the pre-breakdown time corresponding to the actual opening and closing times obtained from the coil parameters of the permanent magnet mechanism and the position information of the phase-selective circuit breaker, as well as the target opening and closing times, in different opening and closing event cycles. This allows the corresponding opening and closing commands to be sent to the permanent magnet mechanism in advance during the next opening and closing event cycle, thereby improving the accuracy of the permanent magnet mechanism driving the phase-selective circuit breaker to perform corresponding actions based on the opening and closing commands. This design approach, through data interconnection and iterative control, can compensate for the time-varying characteristics of the mechanical and electromagnetic parameters of the phase-selective circuit breaker, adapt to different operating conditions, significantly improve the opening and closing accuracy, and enhance the stability of the power system and the lifespan of the equipment.
[0070] Based on the above, this application provides a complete computational example as follows:
[0071] Assuming target opening and closing time (Starting from the instruction reference point), the initial pre-breakdown time (which can also be understood as the pre-breakdown time corresponding to the 0th iteration) Iterative learning coefficients are taken as follows: and .
[0072] First iteration:
[0073] Actual opening and closing time (Due to mechanical lag); time error ; error and Pre-breakdown time .
[0074] Second iteration:
[0075] Actual opening and closing time Time error ; error and Pre-breakdown time .
[0076] Third iteration:
[0077] Actual opening and closing time Time error Due to time error The conditions for ending the iteration are met, therefore the iteration mechanism ends after the third iteration.
[0078] Through the above three iterations, the opening and closing accuracy was improved from 0.5ms to 0.05ms.
[0079] In the above embodiments, the iterative control method for the accuracy of phase-selective circuit breakers has been described in detail. This application also provides embodiments corresponding to the iterative control device for the accuracy of phase-selective circuit breakers. It should be noted that this application describes the embodiments of the device from two perspectives: one is based on functional modules, and the other is based on hardware.
[0080] Figure 3 A structural diagram of a phase-selective circuit breaker accuracy iterative control device provided in another embodiment of this application includes:
[0081] The actual opening and closing time determination module 11 is used to determine the actual opening and closing time of the phase selection circuit breaker based on the coil parameters corresponding to the permanent magnet mechanism and the position information corresponding to the phase selection circuit breaker.
[0082] The target opening and closing time determination module 12 is used to determine the corresponding target opening and closing time based on the target phase angle of the phase-selecting circuit breaker.
[0083] The pre-breakdown time determination module 13 is used to determine the pre-breakdown time corresponding to the actual opening and closing time and the target opening and closing time in different opening and closing event cycles based on the iterative learning mechanism.
[0084] The circuit breaker opening and closing command issuing module 14 is used to send the corresponding circuit breaker opening and closing command to the permanent magnet mechanism in advance of the pre-breakdown time in the next circuit breaker opening and closing event cycle, so as to improve the accuracy of the permanent magnet mechanism driving the phase selection circuit breaker to perform corresponding actions based on the circuit breaker opening and closing command.
[0085] Since the embodiments of the apparatus and the embodiments of the method correspond to each other, please refer to the description of the embodiments of the method for the embodiments of the apparatus, which will not be repeated here.
[0086] Figure 4 A structural diagram of an electronic device provided in another embodiment of this application, such as... Figure 4 As shown, the electronic device includes: a memory 20 for storing computer programs;
[0087] The processor 21 is used to execute computer programs to implement the steps of the phase-selective circuit breaker accuracy iterative control method mentioned in the above embodiments.
[0088] The electronic devices provided in this embodiment may include, but are not limited to, smartphones, tablets, laptops, or desktop computers.
[0089] The processor 21 may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor 21 may be implemented using at least one of the following hardware forms: Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 21 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor 21 may also include an Artificial Intelligence (AI) processor, which is used to handle computational operations related to machine learning.
[0090] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory 20 is used to store at least the following computer program 201, which, after being loaded and executed by the processor 21, is capable of implementing the relevant steps of the phase-selective circuit breaker accuracy iterative control method disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, and the storage method may be temporary storage or permanent storage. The operating system 202 may include Windows, Unix, Linux, etc.
[0091] In some embodiments, the electronic device may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.
[0092] Those skilled in the art will understand that Figure 4 The structures shown do not constitute a limitation on electronic devices and may include more or fewer components than those shown.
[0093] The electronic device provided in this application includes a memory and a processor. When the processor executes the program stored in the memory, it can implement the above-described phase selection circuit breaker accuracy iterative control method and has the same beneficial effects.
[0094] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the above method embodiments.
[0095] It is understood that if the methods in the above embodiments 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 all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes 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.
[0096] The foregoing provides a detailed description of a phase-selective circuit breaker accuracy iterative control method, apparatus, device, and medium provided in this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
[0097] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A method for iterative control of the accuracy of a phase-selective circuit breaker, characterized in that, include: The actual opening and closing time of the phase-selecting circuit breaker is determined based on the coil parameters corresponding to the permanent magnet mechanism and the position information corresponding to the phase-selecting circuit breaker. The target opening and closing time is determined based on the target phase angle of the phase-selecting circuit breaker; The pre-breakdown time corresponding to the actual opening and closing time and the target opening and closing time in different opening and closing event cycles is determined according to the iterative learning mechanism. In the next opening and closing event cycle, the corresponding opening and closing command is sent to the permanent magnet mechanism in advance of the pre-breakdown time, so as to improve the accuracy of the permanent magnet mechanism driving the phase selection circuit breaker to perform corresponding actions based on the opening and closing command.
2. The phase-selective circuit breaker accuracy iterative control method according to claim 1, characterized in that, The determination of the actual opening and closing time of the phase-selecting circuit breaker based on the coil parameters corresponding to the permanent magnet mechanism and the position information corresponding to the phase-selecting circuit breaker includes: Obtain the coil current and magnetic flux from the coil parameters corresponding to the permanent magnet mechanism; Obtain the initial contact position and target contact position from the position information corresponding to the phase-selective circuit breaker; The actual opening and closing time is determined based on the coil current, the magnetic flux, the initial position of the contact, and the target position of the contact.
3. The phase-selective circuit breaker accuracy iterative control method according to claim 2, characterized in that, Determining the corresponding actual opening and closing time based on the coil current, the magnetic flux, the initial position of the contact, and the target position of the contact includes: The corresponding electromagnetic driving force is determined based on the coil current and the magnetic flux. The contact motion equation is constructed based on electromagnetic driving force and mechanical reaction force; Substitute the initial position and the target position of the contact into the contact motion equation to obtain the span time between the contact and the target position, and use the span time as the actual opening and closing time.
4. The phase-selective circuit breaker accuracy iterative control method according to claim 1, characterized in that, The step of determining the pre-breakdown time corresponding to the actual opening and closing time and the target opening and closing time in different opening and closing event cycles based on the iterative learning mechanism includes: The time error corresponding to the current opening and closing event cycle is determined based on the actual opening and closing time and the target opening and closing time. The pre-breakdown time corresponding to the time error is determined based on the iterative learning formula corresponding to the iterative learning mechanism.
5. The phase-selective circuit breaker accuracy iterative control method according to claim 4, characterized in that, The iterative learning formula is: ； in, This is the pre-breakdown time corresponding to the (k+1)th iteration; This refers to the pre-breakdown time corresponding to the k-th iteration; This refers to the time error corresponding to the k-th iteration; and These are the iterative learning coefficients.
6. The phase-selective circuit breaker accuracy iterative control method according to claim 5, characterized in that, Also includes: The corresponding error change rate is determined based on the time error corresponding to any two adjacent iterations. The iteration stops when the rate of change of the error is less than the iteration termination rate threshold.
7. The phase-selective circuit breaker accuracy iterative control method according to claim 5, characterized in that, Also includes: If the absolute value of the time error corresponding to any iteration is less than the iteration termination error threshold, then the iteration stops.
8. A phase-selective circuit breaker accuracy iterative control device, characterized in that, include: The actual opening and closing time determination module is used to determine the actual opening and closing time of the phase selection circuit breaker based on the coil parameters corresponding to the permanent magnet mechanism and the position information corresponding to the phase selection circuit breaker. The target opening and closing time determination module is used to determine the corresponding target opening and closing time based on the target phase angle of the phase selection circuit breaker. The pre-breakdown time determination module is used to determine the pre-breakdown time corresponding to the actual opening and closing time and the target opening and closing time in different opening and closing event cycles based on an iterative learning mechanism. The circuit breaker opening and closing command issuing module is used to send the corresponding circuit breaker opening and closing command to the permanent magnet mechanism in advance of the pre-breakdown time in the next circuit breaker opening and closing event cycle, so as to improve the accuracy of the permanent magnet mechanism driving the phase selection circuit breaker to perform corresponding actions based on the circuit breaker opening and closing command.
9. An electronic device, characterized in that, Includes memory used to store computer programs; A processor, configured to implement the steps of the phase-selective circuit breaker accuracy iterative control method as described in any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the phase-selective circuit breaker accuracy iterative control method as described in any one of claims 1 to 7.