Control method of resistance-capacitance absorber in reignition overvoltage

Abstract

The control method comprises the following steps: monitoring waveform characteristics of overvoltage in real time, performing trend judgment through overvoltage prediction control based on the waveform characteristics of the overvoltage, and setting a resistor-capacitor to enter a preparation state in advance; when the overvoltage actually occurs, the resistance-capacitance parameters are adjusted through a self-adaptive control method so as to be matched with the overvoltage waveform; implementing multi-frequency bandwidth adaptive regulation and control according to the frequency characteristic of the overvoltage; pulse suppression operation is executed for high-frequency pulses appearing in the reignition process, and impact of the pulses is reduced; real-time adjustment is carried out under a dynamic condition by using fuzzy logic, and meanwhile, a rapid reset operation is executed after each overvoltage absorption, so that the resistance-capacitance absorber is recovered to an initial state. Generally speaking, the overvoltage suppression effect and adaptive capacity of the resistance-capacitance absorber are enhanced, the service life of power equipment is prolonged, and the operation stability and reliability of a power system are improved.

Description

Technical Field

[0001] The invention relates to the technical field of overvoltage control, and in particular to a control method of a resistor-capacitor absorber in a reignition overvoltage. Background Art

[0002] With the continuous development of the power system, overvoltage phenomena caused by circuit breaker operation, switch closing and other operations in the power grid are becoming more and more frequent. These overvoltages may damage system equipment and components and affect the stable operation of the power system. In order to reduce the harm of overvoltage, traditional methods mostly use resistors and capacitors to control overvoltage. However, the existing resistor-capacitor absorption method is difficult to cope with the complex and frequently changing overvoltage environment, especially in the reignition overvoltage phenomenon, the overvoltage waveform is often complex and changeable, including high-frequency pulses, and multiple frequency bands may be superimposed, and the amplitude, frequency and other characteristics change instantaneously. Traditional resistor-capacitor absorption methods usually use fixed parameters, which cannot effectively adapt to the dynamic characteristics of overvoltage, and it is difficult to meet the precise control requirements of overvoltage absorption in complex power environments. Therefore, there is an urgent need for a resistor-capacitor absorption method that can be dynamically adjusted according to the real-time characteristics of overvoltage to improve the system's ability to suppress reignition overvoltage. Summary of the invention

[0003] In view of the above existing problems, the present invention is proposed.

[0004] Therefore, the present invention provides a control method for a RC absorber in a reignition overvoltage, aiming to solve the problem of insufficient adaptability of the RC absorber in the prior art when facing complex overvoltage signals. In particular, in the reignition overvoltage scenario, the frequency components, pulse characteristics and waveform changes of the overvoltage signal are complex and diverse, and the existing RC absorber cannot be dynamically adjusted according to the real-time waveform characteristics, resulting in unsatisfactory overvoltage suppression effect. The present invention monitors the overvoltage waveform in real time and adopts adaptive control technology to effectively identify and segment overvoltages with different frequency bands and different pulse characteristics, thereby matching the corresponding RC parameters. At the same time, the present invention introduces fuzzy logic control and a fast reset mechanism, so that the RC absorber can achieve real-time adjustment and efficient reset in a complex power fluctuation environment, thereby solving the technical problems of the absorber's untimely response and limited absorption effect in the current technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solution, a control method of a RC absorber in a restrike overvoltage, comprising:

[0006] Monitor the waveform characteristics of overvoltage in real time, make trend judgment through overvoltage prediction control based on the characteristics of overvoltage waveform, and set the resistor to enter the standby state in advance;

[0007] When overvoltage actually occurs, the resistor and capacitor parameters are adjusted through adaptive control methods to match the overvoltage waveform; according to the frequency characteristics of the overvoltage, multi-frequency bandwidth adaptive control is implemented;

[0008] Perform pulse suppression operation on high-frequency pulses appearing during the reignition process to reduce the impact of the pulses;

[0009] Fuzzy logic is used to make real-time adjustments under dynamic conditions, while a fast reset operation is performed after each overvoltage absorption to restore the RC absorber to its initial state.

[0010] As a preferred solution of the control method of the RC absorber in the reignition overvoltage described in the present invention, the overvoltage predictive control includes constructing a prediction model based on historical data and real-time data, combining trend analysis and machine learning algorithms to predict overvoltage situations that may occur in the short term in the future, and setting the preparatory state and RC parameters of the RC absorber in advance according to the prediction results.

[0011] As a preferred solution of the control method of the RC absorber in the reignition overvoltage of the present invention, the adaptive control method includes: the system collects the waveform data of the overvoltage in real time through the sensor to generate a continuous voltage signal sequence, and uses the digital filtering technology to preliminarily process the collected signal to remove the high-frequency noise and low-frequency interference therein, retain the waveform characteristics, and extract characteristic parameters from the filtered waveform data through the signal processing algorithm, including the peak amplitude of the waveform, the main frequency component, the wavefront rise rate and the wave tail fall rate;

[0012] The system inputs the extracted characteristic parameters into the control algorithm, calculates the resistance and capacitance parameters that match the current overvoltage waveform, and dynamically adjusts the resistance and capacitance of the resistor and capacitor to ensure that the resistor and capacitor automatically adapt to different overvoltage conditions to meet control requirements.

[0013] As a preferred solution of the control method of the RC absorber in the reignition overvoltage described in the present invention, the multi-frequency bandwidth adaptive control includes performing fast Fourier transform or wavelet transform on the overvoltage signal to analyze the frequency components of the signal, dividing the overvoltage signal into different frequency bands of high frequency, medium frequency and low frequency, and setting the RC absorption parameters of the corresponding frequency bands, and calling the RC parameters of the multi-band overvoltage signal according to the characteristics of each frequency band to complete frequency matching and bandwidth control.

[0014] As a preferred solution of the control method of the RC absorber in the reignition overvoltage described in the present invention, the pulse suppression operation includes real-time capture of high-frequency pulse components in the overvoltage signal, continuous monitoring of the signal through high-speed sampling technology, and automatic recording of key characteristic parameters of the pulse when a high-frequency pulse appears in the signal. The key characteristic parameters include the peak amplitude, continuous width and frequency component of the pulse. The characteristic parameter analysis algorithm is used to match the collected pulse characteristics with the preset parameter library, and the RC combination parameters corresponding to the current pulse characteristics are selected. At the moment of pulse triggering, the system automatically loads the selected RC parameters according to the matching results, adjusts the state of the RC and capacitor by fast switching the circuit, and responds to the high-frequency pulse.

[0015] As a preferred solution of the control method of the RC absorber in the reignition overvoltage of the present invention, wherein: the real-time adjustment under dynamic conditions using fuzzy logic includes that the system presets fuzzy variables of overvoltage, including overvoltage amplitude, duration and waveform type, and quantizes them into fuzzy sets, that is, the amplitude is divided into "low, medium, high", the duration is divided into "short, medium, long", and the waveform type is set to a fuzzy description of "spike, pulse, slow change" according to the shape characteristics. Based on the fuzzy variables, the system constructs a fuzzy control rule library, and when the amplitude is high and the duration is long, a high resistance parameter is selected;

[0016] When an overvoltage signal is detected in real time, the system maps the measured actual amplitude, duration and waveform type to the corresponding fuzzy set, and infers the current signal state through the maximum membership method or weighted average method to generate corresponding control instructions. The system automatically adjusts the resistance and capacitance parameters according to the control instructions in the inference results and selects the resistance and capacitance values ​​that match the current overvoltage state.

[0017] As a preferred solution of the control method of the RC absorber in the reignition overvoltage of the present invention, wherein: the rapid reset operation includes that after each overvoltage absorption operation is completed, the system automatically triggers the rapid discharge process of the RC absorber to release the residual charge inside the absorber, and the discharge process is performed through a preset discharge circuit, and a low impedance path is used to guide the residual charge to dissipate;

[0018] After the discharge is completed, the system enters the cooling stage, and the temperature of the resistor and capacitor is restored to the preset safety range through the heat dissipation device or natural cooling. After the cooling process, the system starts the self-test function and detects the key parameters of the resistor and capacitor in turn. The key parameters include the stability of resistance and capacitance, and the circuit connection status, and confirms that each parameter has been restored to the initial set standard range. After the quick reset operation process is completed, the resistor and capacitor absorber returns to the standby state and prepares for the next overvoltage absorption operation.

[0019] As a preferred solution of the control method of the RC absorber in the reignition overvoltage described in the present invention, the waveform characteristics also include digital filtering of the real-time collected waveform data to remove noise in the signal, using a signal separation algorithm to separate the characteristic components of the waveform, and providing waveform information for waveform adaptive control.

[0020] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and is characterized in that when the processor executes the computer program, steps of a method for controlling a resistor-capacitor absorber in a reignition overvoltage are implemented.

[0021] A computer-readable storage medium stores a computer program, wherein the computer program, when executed by a processor, implements the steps of a method for controlling a resistor-capacitor absorber during a restrike overvoltage.

[0022] Beneficial effects of the present invention: The present invention realizes efficient control of the reignition overvoltage by the RC absorber through technical means such as adaptive regulation based on the overvoltage waveform characteristics, multi-frequency bandwidth adjustment, pulse suppression control and fuzzy logic real-time adjustment, and has excellent dynamic response capabilities. After an overvoltage event occurs, the system can automatically match the optimal RC parameters according to the real-time detection data, and quickly reset after each absorption operation to ensure that the RC container returns to the standby state in a short time. In addition, the fuzzy logic control method introduced in the present invention enables the system to make intelligent judgments and dynamic adjustments based on the overvoltage characteristics under uncertain conditions, thereby improving the adaptability and control accuracy of the absorber. In general, the present invention enhances the overvoltage suppression effect and adaptability of the RC absorber, helps to extend the service life of power equipment, and improves the operating stability and reliability of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 A schematic flow chart of a method for controlling a RC absorber during a restrike overvoltage is provided in accordance with an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] The present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example 1, reference Figure 1 , which is the first embodiment of the present invention, provides a control method of a RC absorber in a restrike overvoltage, comprising:

[0032] S1: Monitor the waveform characteristics of overvoltage in real time, make trend judgment through overvoltage prediction control based on the characteristics of overvoltage waveform, and set the resistor to enter the standby state in advance.

[0033] S2: When overvoltage actually occurs, the resistor and capacitor parameters are adjusted through an adaptive control method to match the overvoltage waveform; according to the frequency characteristics of the overvoltage, multi-frequency bandwidth adaptive control is implemented.

[0034] S3: Perform pulse suppression operation on the high-frequency pulses appearing during the reignition process to reduce the impact of the pulses.

[0035] S4: Use fuzzy logic to make real-time adjustments under dynamic conditions, and perform a fast reset operation after each overvoltage absorption to restore the RC absorber to its initial state.

[0036] The overvoltage prediction control includes building a prediction model based on historical data and real-time data, combining trend analysis and machine learning algorithms to predict overvoltage situations that may occur in the short term in the future, and setting the standby state and resistance and capacitance parameters of the resistor and capacitor absorber in advance according to the prediction results.

[0037] Specifically, for a given historical overvoltage data x t , fit it with the LSTM model to obtain its future trend.

[0038] LSTM state update formula:

[0039] i t =σ(W ix x t +W ih h t-1 +b i )

[0040] f t =σ(W fx x t +W fh h t-1 +b f )

[0041] o t =σ(W ox x t +W oh h t-1 +b o )

[0042] c t =f t ·c t-1 +i t tanh(W cx xt +W ch h t-1 +b c )

[0043] h t =o t ·tanh(c t )

[0044] Among them, i t ,f t ,o t They are input gate, forget gate, output gate, c t is the cell state, h t In hidden state.

[0045] In order to improve the accuracy of real-time prediction, Kalman filtering is used to dynamically correct the prediction results of the LSTM model. The steps of Kalman filtering are as follows:

[0046] Prediction Steps:

[0047]

[0048] P t∣t-1 =AP t-1∣t-1 A T +Q

[0049] in, is the predicted state at time t, P t∣t-1 is the prediction error covariance, and Q is the process noise.

[0050] Update steps:

[0051] K t =P t∣t-1 H T (HP t∣t-1 H T +R) -1

[0052]

[0053] P t∣t =(IK t H)P t∣t-1

[0054] Among them, K t is the Kalman gain, z t is the measurement value, R is the measurement noise, and H is the observation matrix.

[0055] Output results of the fusion model based on LSTM and Kalman filtering Set the overvoltage warning threshold T voltage ,when When an alarm occurs, a warning signal is triggered.

[0056] After the early warning signal is generated, the system automatically configures the resistance and capacitance parameters to enter the standby state.

[0057] The adaptive control method includes: the system collects overvoltage waveform data in real time through sensors to generate a continuous voltage signal sequence, and uses digital filtering technology to preliminarily process the collected signals to remove high-frequency noise and low-frequency interference, retain waveform characteristics, and extract characteristic parameters from the filtered waveform data through a signal processing algorithm, including the peak amplitude of the waveform, the main frequency component, the wavefront rise rate, and the wave tail fall rate;

[0058] The system inputs the extracted characteristic parameters into the control algorithm, calculates the resistance and capacitance parameters that match the current overvoltage waveform, and dynamically adjusts the resistance and capacitance of the resistor and capacitor to ensure that the resistor and capacitor automatically adapt to different overvoltage conditions to meet control requirements.

[0059] The multi-frequency bandwidth adaptive control includes performing fast Fourier transform or wavelet transform on the overvoltage signal to analyze the frequency components of the signal, dividing the overvoltage signal into different frequency bands of high frequency, medium frequency and low frequency, and setting the resistance and capacitance absorption parameters of the corresponding frequency bands, and calling the resistance and capacitance parameters of the multi-band overvoltage signal according to the characteristics of each frequency band to complete frequency matching and bandwidth control.

[0060] Specifically, based on the results of frequency analysis, the overvoltage signal is divided into different frequency bands such as high frequency, medium frequency and low frequency. The typical frequency range is defined as: high frequency band (greater than 1kHz), medium frequency band (100Hz-1kHz), low frequency band (less than 100Hz). The specific frequency band range can be dynamically adjusted according to system requirements.

[0061] Assume that the overvoltage signal is s(t). In the wavelet transform framework, the wavelet basis function ψ(t) is used to represent the time-frequency characteristics of the signal.

[0062]

[0063] Among them, a is the scale factor used to adjust the frequency bandwidth, and b is the time shift parameter.

[0064] According to the time-frequency spectrum obtained by wavelet transform, the frequency band is divided into high frequency band, medium frequency band and low frequency band. high (t),S mid (t),S low (t), set the corresponding resistance and capacitance values ​​respectively

[0065] (R high ,C high ),(R mid ,C mid ),(Rlow ,C low ).

[0066] Through the adaptive bandpass filter, the signals of different frequency bands are filtered separately, and the resistance and capacitance parameters are adjusted to adapt to the signals of each frequency band. Assume that the filter transfer function H(f) is:

[0067]

[0068] Among them, H low (f),H mid (f),H high (f) are the filter transfer functions for the low frequency band, mid frequency band, and high frequency band, respectively.

[0069] For each frequency band signal S high (t),S mid (t),S low (t), and calculate the matching resistance and capacitance parameters according to its energy distribution:

[0070]

[0071] Among them, i∈{high, mid, low}, V i is the overvoltage amplitude of the corresponding frequency band, P i is the set absorbed power, f i is the center frequency.

[0072] Combined with the above analysis results, when the overvoltage signal contains multi-band components, the system simultaneously calls the resistance and capacitance parameter combination of each frequency band (R high ,C high ),(R mid ,C mid ),(R low ,C low ), forming a multi-band coordinated response to ensure that the overvoltage signal in each frequency band is regulated accordingly.

[0073] The pulse suppression operation includes real-time capture of high-frequency pulse components in the overvoltage signal, continuous monitoring of the signal through high-speed sampling technology, and automatic recording of key characteristic parameters of the pulse when a high-frequency pulse appears in the signal. The key characteristic parameters include the peak amplitude, continuous width and frequency component of the pulse. The characteristic parameter analysis algorithm is used to match the collected pulse characteristics with a preset parameter library, and the resistance and capacitance combination parameters corresponding to the current pulse characteristics are selected. At the moment of pulse triggering, the system automatically loads the selected resistance and capacitance parameters according to the matching results, adjusts the state of the resistance and capacitance by quickly switching the circuit, and responds to the high-frequency pulse.

[0074] The use of fuzzy logic to make real-time adjustments under dynamic conditions includes: the system presets fuzzy variables of overvoltage, including overvoltage amplitude, duration and waveform type, and quantizes them into fuzzy sets, that is, the amplitude is divided into "low, medium, and high", the duration is divided into "short, medium, and long", and the waveform type is set to a fuzzy description of "spike, pulse, slow change" according to the shape characteristics. Based on the fuzzy variables, the system constructs a fuzzy control rule library, and when the amplitude is high and the duration is long, a high resistance parameter is selected;

[0075] When an overvoltage signal is detected in real time, the system maps the measured actual amplitude, duration and waveform type to the corresponding fuzzy set, and infers the current signal state through the maximum membership method or weighted average method to generate corresponding control instructions. The system automatically adjusts the resistance and capacitance parameters according to the control instructions in the inference results and selects the resistance and capacitance values ​​that match the current overvoltage state.

[0076] The rapid reset operation includes that after each overvoltage absorption operation is completed, the system automatically triggers a rapid discharge process of the RC absorber to release the residual charge inside the absorber, and the discharge process is performed through a preset discharge circuit, using a low impedance path to guide the residual charge to dissipate;

[0077] After the discharge is completed, the system enters the cooling stage, and the temperature of the resistor and capacitor is restored to the preset safety range through the heat dissipation device or natural cooling. After the cooling process, the system starts the self-test function and detects the key parameters of the resistor and capacitor in turn. The key parameters include the stability of resistance and capacitance, and the circuit connection status, and confirms that each parameter has been restored to the initial set standard range. After the quick reset operation process is completed, the resistor and capacitor absorber returns to the standby state and prepares for the next overvoltage absorption operation.

[0078] The waveform characteristics also include performing digital filtering on the waveform data collected in real time to remove noise in the signal, using a signal separation algorithm to separate the characteristic components of the waveform, and providing waveform information for waveform adaptive control.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

[0080] Example 2

[0081] The second embodiment of the present invention is different from the previous embodiment in that:

[0082] If the functions are implemented in the form of 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 the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0083] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0084] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0085] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0086] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0087] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A control method for a RC absorber in a reignition overvoltage, characterized in that: include, Monitor the waveform characteristics of overvoltage in real time, make trend judgment through overvoltage prediction control based on the characteristics of overvoltage waveform, and set the resistor to enter the standby state in advance; When overvoltage actually occurs, the resistor and capacitor parameters are adjusted to match the overvoltage waveform through adaptive control methods, and multi-frequency bandwidth adaptive control is implemented according to the frequency characteristics of the overvoltage; Perform pulse suppression operation on high-frequency pulses appearing during the reignition process to reduce the impact of the pulses; Fuzzy logic is used to make real-time adjustments under dynamic conditions, while a fast reset operation is performed after each overvoltage absorption to restore the RC absorber to its initial state.

2. The control method of a RC absorber in a restrike overvoltage as claimed in claim 1, characterized in that: The overvoltage prediction control includes building a prediction model based on historical data and real-time data, combining trend analysis and machine learning algorithms to predict overvoltage situations that may occur in the short term in the future, and setting the standby state and resistance and capacitance parameters of the resistor and capacitor absorber in advance according to the prediction results.

3. The control method of a RC absorber in a restrike overvoltage as claimed in claim 2, characterized in that: The adaptive control method includes: the system collects overvoltage waveform data in real time through sensors to generate a continuous voltage signal sequence, and uses digital filtering technology to preliminarily process the collected signals to remove high-frequency noise and low-frequency interference, retain waveform characteristics, and extract characteristic parameters from the filtered waveform data through a signal processing algorithm, including the peak amplitude of the waveform, the main frequency component, the wavefront rise rate, and the wave tail fall rate; The system inputs the extracted characteristic parameters into the control algorithm, calculates the resistance and capacitance parameters that match the current overvoltage waveform, and dynamically adjusts the resistance and capacitance of the resistor and capacitor to ensure that the resistor and capacitor automatically adapt to different overvoltage conditions to meet control requirements.

4. The control method of a RC absorber in a restrike overvoltage as claimed in claim 3, characterized in that: The multi-frequency bandwidth adaptive control includes performing fast Fourier transform or wavelet transform on the overvoltage signal to analyze the frequency components of the signal, dividing the overvoltage signal into different frequency bands of high frequency, medium frequency and low frequency, and setting the resistance and capacitance absorption parameters of the corresponding frequency bands, and calling the resistance and capacitance parameters of the multi-band overvoltage signal according to the characteristics of each frequency band to complete frequency matching and bandwidth control.

5. The control method of a RC absorber in a restrike overvoltage as claimed in claim 4, characterized in that: The pulse suppression operation includes real-time capture of high-frequency pulse components in the overvoltage signal, continuous monitoring of the signal through high-speed sampling technology, and automatic recording of key characteristic parameters of the pulse when a high-frequency pulse appears in the signal. The key characteristic parameters include the peak amplitude, continuous width and frequency component of the pulse. The characteristic parameter analysis algorithm is used to match the collected pulse characteristics with a preset parameter library, and the resistance and capacitance combination parameters corresponding to the current pulse characteristics are selected. At the moment of pulse triggering, the system automatically loads the selected resistance and capacitance parameters according to the matching results, adjusts the state of the resistance and capacitance by quickly switching the circuit, and responds to the high-frequency pulse.

6. A control method for a RC absorber in a restrike overvoltage as claimed in claim 5, characterized in that: The use of fuzzy logic to make real-time adjustments under dynamic conditions includes: the system presets fuzzy variables of overvoltage, including overvoltage amplitude, duration and waveform type, and quantizes them into fuzzy sets, that is, the amplitude is divided into "low, medium, and high", the duration is divided into "short, medium, and long", and the waveform type is set to a fuzzy description of "spike, pulse, slow change" according to the shape characteristics. Based on the fuzzy variables, the system constructs a fuzzy control rule library, and when the amplitude is high and the duration is long, a high resistance parameter is selected; When an overvoltage signal is detected in real time, the system maps the measured actual amplitude, duration and waveform type to the corresponding fuzzy set, and infers the current signal state through the maximum membership method or weighted average method to generate corresponding control instructions. The system automatically adjusts the resistance and capacitance parameters according to the control instructions in the inference results and selects the resistance and capacitance values ​​that match the current overvoltage state.

7. A control method for a RC absorber in a restrike overvoltage as claimed in claim 6, characterized in that: The rapid reset operation includes that after each overvoltage absorption operation is completed, the system automatically triggers a rapid discharge process of the RC absorber to release the residual charge inside the absorber, and the discharge process is performed through a preset discharge circuit, using a low impedance path to guide the residual charge to dissipate; After the discharge is completed, the system enters the cooling stage, and the temperature of the resistor and capacitor is restored to the preset safety range through the heat dissipation device or natural cooling. After the cooling process, the system starts the self-test function and detects the key parameters of the resistor and capacitor in turn. The key parameters include the stability of resistance and capacitance, and the circuit connection status, and confirms that each parameter has been restored to the initial set standard range. After the quick reset operation process is completed, the resistor and capacitor absorber returns to the standby state and prepares for the next overvoltage absorption operation.

8. The control method of a RC absorber in a restrike overvoltage as claimed in claim 7, characterized in that: The waveform characteristics also include performing digital filtering on the waveform data collected in real time to remove noise in the signal, using a signal separation algorithm to separate the characteristic components of the waveform, and providing waveform information for waveform adaptive control.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

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