Power storage high-frequency wave carrier electromagnetic protection system and method and electronic device

Abstract

This application relates to a high-frequency carrier electromagnetic protection system, method, and electronic device for power energy storage. The system includes: a high-frequency carrier detection module for acquiring high-frequency carrier digital signals; an interference suppression control module that uses an interference signal identification algorithm to obtain the interference type and intensity level of the interference signal, and uses a filtering parameter optimization algorithm to obtain the optimal filtering parameters based on the interference type and intensity level, and obtains a shielding status monitoring command through a shielding status linkage algorithm; an adaptive filtering module that controls the on / off or combination of capacitor arrays and inductor arrays according to the optimal filtering parameters to filter out conducted interference signals; and a multi-layer shielding module that responds to the shielding status monitoring command to filter out radiated interference signals. This solves the problems of insufficient protection targeting, single protection level, and poor compatibility in electromagnetic protection technologies, achieving precise and efficient protection against high-frequency carrier electromagnetic interference, while ensuring the operating efficiency and stability of the power energy storage system.

Description

Technical Field

[0001] This application relates to the field of power energy storage technology, and in particular to a high-frequency electromagnetic protection system, method and electronic equipment for power energy storage. Background Technology

[0002] With the rapid development of the new energy industry, power storage systems, as key equipment for smoothing fluctuations in new energy output and ensuring stable grid operation, have seen continuous growth in installed capacity. However, during operation, internal components of power storage systems, such as converters, inverters, and battery management systems, generate high-frequency electromagnetic signals ranging from 20kHz to 1GHz. These signals not only interfere with the normal operation of internal equipment (e.g., causing distortion of battery voltage and temperature data collected by the battery management system, affecting the accuracy of charge and discharge control), but also release external signals through conduction and radiation, interfering with surrounding communication equipment and grid metering devices, and even causing equipment failures and shortening battery life.

[0003] Among related technologies, electromagnetic shielding covers and filters are mostly designed for fixed frequency bands and cannot adapt to the dynamic changes in the frequency of high-frequency carriers in power energy storage systems. When the frequency exceeds the protection range, the protection effect drops significantly. Other related technologies achieve protection through a single shielding or filtering method, which is difficult to deal with the problem of high-frequency carriers propagating through multiple paths such as conduction, radiation, and coupling. Still other related technologies introduce additional impedance into some protective devices, affecting the charging and discharging efficiency of the energy storage system. Moreover, in the high-temperature and high-humidity environment of the energy storage chamber, stability and service life are difficult to guarantee.

[0004] Therefore, electromagnetic protection technologies in related fields suffer from insufficient protection targeting, limited protection levels, and poor compatibility, which urgently need to be addressed. Summary of the Invention

[0005] This application provides a high-frequency electromagnetic protection system, method, and electronic device for power energy storage, to solve the problems of insufficient protection targeting, single protection level, and poor compatibility of electromagnetic protection technologies in related technologies, so as to achieve accurate and efficient protection against high-frequency electromagnetic interference, while ensuring the operating efficiency and stability of the power energy storage system.

[0006] The first aspect of this application provides a high-frequency carrier electromagnetic protection system for power storage, comprising: a high-frequency carrier detection module, an interference suppression control module, an adaptive filtering module, and a multi-layer shielding module, wherein... The high-frequency carrier detection module is used to collect high-frequency carrier digital signals from the power energy storage system. The interference suppression control module is used to identify the high-frequency carrier digital signal through a preset interference signal identification algorithm, obtain the interference type and interference intensity level of the interference signal, obtain the optimal filtering parameters based on the interference type and interference intensity level using a preset filtering parameter optimization algorithm, and obtain the shielding status monitoring command through a preset shielding status linkage algorithm. The adaptive filtering module is used to control the on / off state or combination of the capacitor array and the inductor array according to the optimal filtering parameters, so as to complete the filtering operation within the preset frequency range and filter out conducted interference signals. The multi-layer shielding module is used to respond to the shielding status monitoring command and control the preset shielding layer to filter out radiative interference signals.

[0007] Optionally, in some embodiments, the multi-layer shielding module is a composite structure consisting of an inner shielding layer, a middle absorbing layer, and an outer shielding layer, wherein... The inner shielding layer is a sealed cavity made of copper foil. The intermediate absorbing layer is a composite material of carbonyl iron powder and epoxy resin. The outer shielding layer is an aluminum alloy plate of a certain thickness.

[0008] Optionally, in some embodiments, the high-frequency electromagnetic protection system for power storage further includes: The status monitoring and feedback module is used to obtain the interference attenuation, impedance matching error and operating temperature of the adaptive filtering module, and to obtain the shielding effectiveness of the outer shielding layer, the gap width of the inner shielding layer and the absorption attenuation of the middle absorbing layer. If the interference attenuation is less than a first preset threshold, or the impedance matching error is greater than a second preset threshold, or the operating temperature is greater than a preset temperature threshold, the optimal filtering parameters are adjusted according to the first preset adjustment strategy, and a parameter adjustment command is generated. If the shielding effectiveness is less than the third preset threshold, or the gap width is greater than the fourth preset threshold, or the absorption attenuation is less than the fifth preset threshold, the shielding status monitoring command is adjusted according to the second preset adjustment strategy, and a shielding status adjustment command is generated. The parameter adjustment command is sent to the interference suppression control module, and the shielding status adjustment command is sent to the multi-layer shielding module.

[0009] Optionally, in some embodiments, the interference suppression control module includes: an interference identification unit, a model selection unit, a parameter calculation unit, and a dynamic verification unit, wherein, The interference identification unit is used to extract key features of the high-frequency carrier digital signal through the preset interference signal identification algorithm, obtain the acquisition location, interference frequency and amplitude of the interference signal, obtain the interference type according to the acquisition location, obtain the frequency bandwidth characteristics of the interference signal according to the interference frequency, and obtain the interference intensity level according to the amplitude. The model selection unit is used to select the current filter circuit model based on the frequency bandwidth characteristics using a preset filter parameter optimization algorithm. The parameter calculation unit is used to generate an objective function based on the current filter circuit model, obtain the current optimal solution based on the objective function, a preset iterative calculation strategy and preset constraints, and determine the optimal filter parameters based on the current optimal solution. The dynamic verification unit is used to re-execute the steps in the interference identification unit, the model selection unit, and the parameter calculation unit according to the parameter adjustment instruction.

[0010] Optionally, in some embodiments, the adaptive filtering module includes: a reconfigurable filtering circuit and a state monitoring unit, wherein, The reconfigurable filter circuit is used to match the current circuit topology according to the frequency bandwidth characteristics of the interference signal, calculate the current capacitance value and the current resistance value according to the interference frequency of the interference signal and the preset calculation formula corresponding to the current circuit topology, and control the on / off or combination of the capacitor array and the inductor array according to the current capacitance value and the current resistance value. The status monitoring unit is used to collect the operating temperature of the reconfigurable filter circuit and send the operating temperature to the status monitoring and feedback module.

[0011] Optionally, in some embodiments, the interference suppression control module further includes: The impedance matching unit is used to acquire the actual impedance of the main circuit of the power storage system, calculate the impedance matching error between the actual impedance and the preset target impedance, and adjust the output impedance according to the impedance matching error until the impedance matching error is within the preset range.

[0012] Optionally, in some embodiments, the adaptive filtering module further includes: The gain adjustment circuit is used to acquire the first amplitude of the normal signal before filtering and the second amplitude of the normal signal after filtering, calculate the current attenuation based on the first amplitude and the second amplitude, generate a compensation command based on the current attenuation, and control the matching of the compensation amount with the current attenuation based on the compensation command.

[0013] Optionally, in some embodiments, the high-frequency carrier detection module includes: The acquisition chip unit is used to acquire the high-frequency carrier electromagnetic signal of the power energy storage system and convert the conditioned high-frequency carrier electromagnetic signal into the high-frequency carrier digital signal according to a preset sampling rate.

[0014] A second aspect of this application provides a method for electromagnetic protection against high-frequency waves in power storage, comprising the following steps: Acquire high-frequency carrier digital signals from power energy storage systems; The high-frequency carrier digital signal is identified by a preset interference signal identification algorithm to obtain the interference type and interference intensity level. Based on the interference type and interference intensity level, the optimal filtering parameters are obtained by a preset filtering parameter optimization algorithm. The shielding status monitoring command is obtained by a preset shielding status linkage algorithm. Based on the optimal filtering parameters, the switching or combination of capacitor array and inductor array is controlled to complete the filtering operation within the preset frequency range, filter out conducted interference signals, and respond to the shielding status monitoring command to control the preset shielding layer to filter out radiated interference signals.

[0015] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the high-frequency electromagnetic protection method for power storage as described in the above embodiments.

[0016] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the high-frequency electromagnetic protection method for power storage as described in the above embodiments.

[0017] The beneficial effects of the embodiments of this application are as follows: (1) Breaking through frequency adaptation limitations: Achieving 20kHz-1GHz wideband dynamic protection and solving the adaptation problem of fixed frequency protection devices; (2) Overcoming the contradiction between effectiveness and efficiency: While improving protective effectiveness, improve efficiency, and take into account both protection and operational economy. (3) Break through the reliability bottleneck: Through closed-loop control, long-term stable operation is achieved to meet the complex operating conditions of energy storage systems.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1This is a schematic diagram of the structure of a high-frequency electromagnetic protection system for power storage provided according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a high-frequency electromagnetic protection system for power storage according to a specific embodiment of this application; Figure 3 This is a flowchart of a high-frequency electromagnetic protection method for power storage provided according to an embodiment of this application; Figure 4 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of this application. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0021] The following description, with reference to the accompanying drawings, describes an embodiment of a high-frequency electromagnetic protection system, method, and electronic device for power storage. Addressing the issues of insufficient protection targeting, single protection level, and poor compatibility of electromagnetic protection technologies mentioned in the background, this application provides a high-frequency electromagnetic protection system for power storage. In this system, a high-frequency carrier detection module is used to acquire the high-frequency carrier digital signal of the power storage system; an interference suppression control module is used to identify the high-frequency carrier digital signal using a preset interference signal identification algorithm, obtain the interference type and interference intensity level of the interference signal, obtain the optimal filtering parameters using a preset filtering parameter optimization algorithm based on the interference type and interference intensity level, and obtain a shielding status monitoring command through a preset shielding status linkage algorithm; an adaptive filtering module is used to control the switching or combination of capacitor arrays and inductor arrays according to the optimal filtering parameters to complete filtering operations within a preset frequency range, filtering out conducted interference signals; and a multi-layer shielding module is used to respond to the shielding status monitoring command and control the preset shielding layer to filter out radiated interference signals. This solves the problems of insufficient protection targeting, single protection level and poor compatibility of electromagnetic protection technology, and achieves accurate and efficient protection against high-frequency electromagnetic interference, while ensuring the operating efficiency and stability of power storage systems.

[0022] Specifically, Figure 1 This is a schematic diagram of the structure of the high-frequency electromagnetic protection system for power storage provided in the embodiments of this application.

[0023] like Figure 1 As shown, the high-frequency electromagnetic protection system 10 for power storage includes: a high-frequency electromagnetic carrier detection module 100, an interference suppression control module 200, an adaptive filtering module 300, and a multi-layer shielding module 400.

[0024] The high-frequency electromagnetic protection system for power storage in this application embodiment can be applied to various energy storage systems, such as electrochemical energy storage systems (lithium-ion, flow batteries) and new energy coupled energy storage systems (photovoltaic energy storage, wind energy storage). It is also compatible with other electrochemical energy storage scenarios such as lead-carbon and sodium-ion batteries, and its applicability covers various energy storage applications such as user side, grid side, and new energy power stations.

[0025] Specifically, such as Figure 1 As shown, the high-frequency carrier detection module 100 is connected to the interference suppression control module 200. The high-frequency carrier detection module 100 transmits the high-frequency carrier digital signals collected from inside and outside the power storage system to the interference suppression control module 200. The interference suppression control module 200 is connected to the adaptive filtering module 300 and the multi-layer shielding module 400. The interference suppression control module 200 analyzes the frequency, amplitude and propagation path of the interference signal and sends control commands to the adaptive filtering module 300 and the multi-layer shielding module 400. The adaptive filtering module 300 dynamically adjusts the filtering parameters according to the control commands to achieve targeted filtering. The multi-layer shielding module 400 blocks radiated interference through the synergistic effect of "shielding + absorption".

[0026] The high-frequency electromagnetic protection system for power storage in this embodiment can use an adaptive filtering module 300 to filter interference signals and utilize a multi-layer shielding module 400 based on the principle of "shielding + absorption" to effectively avoid radiation interference propagating through space, thereby achieving multi-level collaborative protection and ensuring the stability of the power storage system.

[0027] The following will describe in detail the various modules of the high-frequency electromagnetic protection system 10 for power storage according to embodiments of this application.

[0028] The high-frequency carrier detection module 100 is used to acquire high-frequency carrier digital signals from the power energy storage system.

[0029] In this embodiment of the application, the high-frequency carrier digital signal originates from the internal components of the power energy storage system, including the inverter output, the BMS (Battery Management System), and the high-frequency carrier digital signal from the external surrounding environment.

[0030] The high-frequency carrier detection module 100 in this embodiment of the application acts as the "sensing organ" of the system, collecting high-frequency carrier digital signals inside and outside the power storage system in real time and accurately, clarifying the basic characteristics (frequency, amplitude) and propagation path (such as conducted signals from the converter output and radiated signals from space) of the interference signal, providing raw data support for the interference suppression control module, and avoiding the protection module from "working blindly".

[0031] Optionally, in some embodiments, the high-frequency carrier detection module 100 includes: a data acquisition chip unit, used to acquire the high-frequency carrier electromagnetic signal of the power energy storage system, and convert the conditioned high-frequency carrier electromagnetic signal into a high-frequency carrier digital signal according to a preset sampling rate.

[0032] In this embodiment, the preset sampling rate is greater than or equal to 100 MSPS. The acquisition chip unit in this embodiment is a high-speed ADC (Analog-to-Digital Converter) acquisition chip.

[0033] It is understandable that the interference suppression control module 200 performs calculations based on digital data, while the embodiments of this application use a broadband electromagnetic sensor to capture high-frequency carrier electromagnetic signals (20kHz-1.2GHz) in space or on a line through the principle of electromagnetic induction, which requires converting the high-frequency carrier electromagnetic signals into high-frequency carrier digital signals.

[0034] Specifically, the embodiments of this application are based on electromagnetic induction and signal digitization conversion technology. The signal conditioning circuit amplifies, filters (removes low-frequency noise and retains the target high-frequency signal) and adjusts the level of the weak analog signal acquired, so as to ensure that the signal meets the input requirements of the high-speed ADC acquisition chip.

[0035] Furthermore, the high-speed ADC acquisition chip converts the conditioned analog signal into a digital signal at a sampling rate of 100 MSPS or higher, that is, converts the high-frequency electromagnetic signal into a high-frequency digital signal, providing calculable digital data for subsequent interference identification.

[0036] The interference suppression control module 200 is used to identify high-frequency carrier digital signals through a preset interference signal identification algorithm, obtain the interference type and interference intensity level of the interference signal, obtain the optimal filtering parameters based on the interference type and interference intensity level using a preset filtering parameter optimization algorithm, and obtain the shielding status monitoring command through a preset shielding status linkage algorithm.

[0037] The types of interference signals include conducted interference and radiated interference, and the levels of interference intensity include mild, moderate and severe.

[0038] It is understood that, according to the interference type and interference intensity level of the interference signal as input, the embodiments of this application generate filtering parameters and shielding instructions through two types of preset algorithms to achieve precise matching of protection strategies.

[0039] Specifically, conducted interference signals trigger a preset filtering parameter optimization algorithm, at which point the intensity level determines the filtering attenuation requirement (e.g., severe interference requires attenuation ≥80dB, and mild interference requires attenuation ≥70dB); radiated interference signals trigger a preset shielding status linkage algorithm, at which point the intensity level determines the shielding monitoring frequency (e.g., severe interference requires monitoring shielding effectiveness every 10s, and mild interference can be monitored every 60s).

[0040] In actual execution, the interference type may be "conducted + radiated mixed interference". In this case, the two types of algorithms will be called synchronously. For example, if "severe mixed interference" is detected: the preset filter parameter optimization algorithm generates filter parameters with high attenuation requirements (such as attenuation ≥ 85dB), and the preset shielding status linkage algorithm generates high-frequency monitoring instructions (such as monitoring shielding effectiveness once every 5 seconds) to ensure that the two types of protection modules start high-intensity protection synchronously.

[0041] Optionally, in some embodiments, the interference suppression control module 200 includes: an interference identification unit, a model selection unit, a parameter calculation unit, and a dynamic verification unit. The interference identification unit is used to extract key features of the high-frequency carrier digital signal using a preset interference signal identification algorithm, obtaining the acquisition location, interference frequency, and amplitude of the interference signal. Based on the acquisition location, it obtains the interference type; based on the interference frequency, it obtains the frequency bandwidth characteristics of the interference signal; and based on the amplitude, it obtains the interference intensity level. The model selection unit is used to select the current filter circuit model based on the frequency bandwidth characteristics using a preset filter parameter optimization algorithm. The parameter calculation unit is used to generate an objective function based on the current filter circuit model, obtain the current optimal solution based on the objective function, a preset iterative calculation strategy, and preset constraints, and determine the optimal filter parameters based on the current optimal solution. The dynamic verification unit is used to re-execute the steps in the interference identification unit, model selection unit, and parameter calculation unit according to parameter adjustment instructions.

[0042] The preset interference signal identification algorithm in this embodiment is based on a support vector machine classification model to determine the interference type (conductive / radiative) and intensity level (mild / moderate / severe). The preset filter parameter optimization algorithm in this embodiment uses an "objective function + constraint condition" optimization model to calculate the optimal capacitance, inductance, and resistance parameters of the adaptive filter module 300. The preset shielding state linkage algorithm in this embodiment is based on a matching model between interference intensity and shielding layer protection capability to generate instructions such as the monitoring cycle and threshold requirements for the multi-layer shielding module.

[0043] Specifically, in this embodiment, the interference identification unit receives digital interference signal data transmitted by the high-frequency carrier detection module via an SPI (Serial Peripheral Interface) interface, including the interference frequency ( ), amplitude ( The main circuit impedance of the energy storage system is simultaneously received via the CAN bus from the status monitoring and feedback module at both the data acquisition location (such as the main circuit / communication interface) and the data acquisition location (such as the main circuit / communication interface). Real-time data (updated every 10ms).

[0044] This application embodiment uses a preset interference signal identification algorithm to extract key features of high-frequency carrier digital signals. If the acquisition location is a main circuit and the signal is conducted through a cable, it is determined to be "conductive interference" (filter protection needs to be activated); if the interference frequency is concentrated near a single value (e.g. =500kHz, bandwidth≤10kHz), is judged as "narrowband interference", if the interference frequency coverage is wide (e.g. =200MHz-1GHz, bandwidth ≥100MHz), judged as "wideband interference"; three levels of intensity are set according to the interference amplitude, mild: ≤100mV, moderate: 100mV< ≤500mV, severe: >500mV, the intensity directly determines the filter attenuation target (mild ≥70dB, moderate ≥75dB, severe ≥80dB).

[0045] Furthermore, the model selection unit in this embodiment of the application calls the model selection logic in the preset filter parameter optimization algorithm based on the frequency bandwidth features extracted by the interference identification unit: For narrowband conducted interference, the "LC series resonant filter model" is chosen because this model exhibits minimum impedance at the resonant frequency (i.e., the interference frequency), which can strongly attenuate narrowband signals. The core formula of the model is: = ; (1); Where L is inductance and C is capacitance.

[0046] Formula (1) shows the relationship between the resonant frequency and the LC parameters.

[0047] Wideband conducted interference, "RC low-pass filter model", because this model is sensitive to the cutoff frequency ( Broadband signals above 10 ... = ; (2); Where R is resistance and C is capacitance.

[0048] Formula (2) shows the relationship between the cutoff frequency and the RC parameters.

[0049] After a model is selected, the module will automatically load the corresponding mathematical calculation library to prepare for subsequent parameter iterations.

[0050] The parameter calculation unit in this embodiment of the application executes a particle swarm optimization algorithm based on the iterative logic of "objective function + constraint conditions," which is the preset iterative calculation strategy of this embodiment of the application. Specifically, the objective function of this embodiment of the application is to maximize the filter attenuation A. And it meets the attenuation target (e.g., severe interference requires A ( ≥80dB), taking the LC model as an example, A ( ) = 20lg( ); (3) ); in, For the frequency point, A ( ) represents the system gain. The impedance of the filter, This is the impedance of the system's main circuit.

[0051] The preset constraint condition in this application embodiment is impedance matching error, i.e., | - |≤5%; Hardware parameter range (capacitor C: 100pF-10μF, inductor L: 1μH-10mH, resistor R: 0.1Ω-10Ω); Passband attenuation ≤0.5dB.

[0052] The iterative calculation process in this embodiment is as follows: Step 1, Initialization: Randomly generate 100 sets of (C, L, R) parameter combinations within the hardware constraints (e.g., C=100pF-10μF, L=1μH-10mH for the LC model). Step 2, Evaluation: Calculate A(t) for each set of parameters. ) and impedance matching error, filter out those that satisfy all constraints and A( The largest current optimal solution; Step 3, Iteration: Using the current optimal solution as a benchmark, adjust the parameter combination (e.g., shift it 10% closer to the optimal solution), and repeat the evaluation steps until 50 iterations or the change in the optimal solution is ≤0.1% (convergence). Step four: Determine the converged (C, L, R) parameters as the "optimal filter parameters", for example, =500kHz When the current is 0.5Ω, the output is L=10μH, C=102μH, and R=0.48Ω.

[0053] Therefore, in this embodiment, the optimal filtering parameters are sent to the adaptive filtering module 300. In subsequent embodiments, the state monitoring and feedback module monitors the adaptive filtering module 300 in real time. If the interference amplitude meets the standard, the current parameters are maintained. If the interference amplitude does not meet the standard, the parameter adjustment command is sent to the interference suppression control module 200. Thus, the dynamic verification unit in this embodiment will re-execute the steps in the interference identification unit, model selection unit, and parameter calculation unit to adjust the parameter values.

[0054] Optionally, in some embodiments, the interference suppression control module further includes: an impedance matching unit, used to acquire the actual impedance of the main circuit of the power storage system, calculate the impedance matching error between the actual impedance and the preset target impedance, and adjust the output impedance according to the impedance matching error until the impedance matching error is within the preset range.

[0055] Wherein, the preset target impedance in this application embodiment is the one described in the above embodiments. (Filter impedance).

[0056] Specifically, when the main circuit impedance When the impedance changes (e.g., from 0.5Ω to 0.6Ω), the module recalculates the optimal parameters within 100ms to ensure that the impedance matching error is always ≤5%, thus avoiding affecting the charging and discharging efficiency.

[0057] Furthermore, the shielding status monitoring command in this application embodiment is based on interference radiation characteristics and is obtained through steps of radiation interference identification, shielding requirement analysis, and command parameter setting. The core is to match the protection strength of the multi-layer shielding module 400 with the interference radiation intensity.

[0058] Specifically, when the interference signal identification algorithm of this application determines that the interference type of the interference signal is radiation interference based on the acquisition location and signal propagation characteristics of the interference signal, it extracts the frequency range (e.g., 20kHz-200MHz is low-to-medium frequency radiation, 200MHz-1GHz is high-frequency radiation) and amplitude of the radiation interference, and classifies it into mild levels.

[0059] This application embodiment analyzes the protection requirements of the multi-layer shielding module 400 based on radiated interference characteristics and a preset shielding status linkage algorithm. Mid-to-low frequency radiation mainly relies on the reflection effect of the inner shielding layer (copper foil), while high-frequency radiation requires the coordinated protection of the intermediate absorbing layer (carbonyl iron powder composite material) and the outer shielding layer (aluminum alloy + nickel powder coating). Furthermore, the intensity and monitoring frequency matching must be considered; that is, the higher the interference intensity, the more frequently the shielding layer status needs to be monitored to avoid protection failure. No specific limitation is made to the monitoring frequency here.

[0060] Furthermore, the interference suppression control module 200 converts the protection requirements into specific instruction parameters, generates a 16-bit binary format shielding status monitoring instruction, and sends it to the multi-layer shielding module 400 via the bus. The shielding status monitoring instruction in this embodiment includes: detection type, monitoring period, and threshold requirements, for example, "Detection type: full-dimensional; monitoring period: 10s; threshold: inner shielding effectiveness ≥85dB, wave absorption attenuation ≥28dB, outer shielding effectiveness ≥80dB".

[0061] Therefore, by dynamically adjusting parameters and commands based on real-time interference data, the "insufficient protection" or "excessive energy consumption" caused by traditional "fixed protection" can be avoided. The adaptive filtering module (conductive protection) and the multi-layer shielding module (radiative protection) complement each other. For example, in mixed interference (conductive + radiative) scenarios, filtering parameters and shielding commands are issued simultaneously to achieve end-to-end protection. Impedance matching constraints are strictly followed in the calculation of filtering parameters, and the monitoring cycle is optimized in the shielding commands to ensure that protection does not affect the charging and discharging efficiency of the energy storage system.

[0062] The adaptive filtering module 300 is used to control the on / off state or combination of capacitor array and inductor array according to the optimal filtering parameters to complete the filtering operation within the preset frequency range and filter out conducted interference signals.

[0063] It is understood that the adaptive filtering module 300 in this embodiment of the application directly achieves the core protection function against "conducted electromagnetic interference" by targeting high-frequency carriers of any frequency in the range of 20kHz-1GHz. Its core advantages lie in "frequency adaptive adjustment" and "impedance dynamic matching", which can accurately intercept high-frequency conducted interference in the range of 20kHz-1GHz, and avoid negative impacts on the charging and discharging efficiency of the energy storage system.

[0064] Specifically, the adaptive filtering module 300 receives the filtering parameter instructions sent by the interference suppression control module 200, decodes the data, extracts key parameters, and thereby triggers the switching or combination of the capacitor array and the inductor array.

[0065] Optionally, in some embodiments, the adaptive filtering module 300 includes: a reconfigurable filtering circuit and a state monitoring unit, wherein the reconfigurable filtering circuit is used to match the current circuit topology according to the frequency bandwidth characteristics of the interference signal, calculate the current capacitance value and the current resistance value according to the interference frequency of the interference signal and the preset calculation formula corresponding to the current circuit topology, and control the switching or combination of the capacitor array and the inductor array according to the current capacitance value and the current resistance value; the state monitoring unit is used to collect the operating temperature of the reconfigurable filtering circuit and send the operating temperature to the state monitoring and feedback module.

[0066] It is understood that the reconfigurable filter circuit in this application embodiment includes a capacitor array and an inductor array, and achieves wideband filtering by dynamically adjusting the filter parameters.

[0067] Specifically, the chip in the reconfigurable filter circuit controls the switching of the capacitor array and inductor array through internal logic according to the target interference frequency, constructing an adapted filter circuit topology (LC series resonance or RC low-pass), for narrow-width interference scenarios ( =300kHz, bandwidth≤10kHz), select LC series resonant topology, and calculate the required capacitance C and inductance L using the preset calculation formula, i.e., formula (1), for example, At 300kHz, the capacitor array is selected with C=280pF and the inductor array is selected with L=100μH. At this time, the circuit presents minimum impedance at 300kHz, which strongly attenuates the interference signal.

[0068] For broadband interference scenarios (such as) =200MHz-1GHz, bandwidth≥100MHz), select RC low-pass topology, and calculate the required capacitance value C and resistance value R by the preset calculation formula, i.e. formula (2), for example, When the frequency is ≥200MHz, the capacitor array is selected with C=4pF and the resistor array is selected with R=200Ω. At this time, the circuit attenuates signals ≥200MHz, and the attenuation increases with the frequency.

[0069] Furthermore, the temperature sensor of the status monitoring unit in this embodiment of the application collects the operating temperature of the module in real time and feeds back the operating temperature to the status monitoring and feedback module in subsequent embodiments.

[0070] In addition, when abnormal data is detected, the status monitoring unit will immediately send an "abnormal warning signal" to promptly notify maintenance personnel to investigate the abnormal situation.

[0071] Optionally, in some embodiments, the adaptive filtering module 300 further includes: a gain adjustment circuit, used to acquire a first amplitude of the normal signal before filtering and a second amplitude of the normal signal after filtering, calculate the current attenuation based on the first amplitude and the second amplitude, generate a compensation instruction based on the current attenuation, and control the matching of the compensation amount with the current attenuation based on the compensation instruction.

[0072] Understandably, the adaptive filter module 300 specifically weakens interference by attenuating the amplitude of high-frequency interference signals in the main circuit from hundreds of millivolts (e.g., 0.5A) to ≤0.01A through LC series resonant (20kHz-1MHz) or RC low-pass (1MHz-1GHz) topologies, ensuring that interference cannot affect battery clusters, BMS, and other equipment. However, during this process, the normal charging and discharging current / voltage signals in the main circuit (e.g., 50Hz power frequency signals, converter control signals) may experience slight attenuation (typically 0.3dB-1dB) due to the impedance characteristics of the filter circuit.

[0073] Therefore, the gain adjustment circuit in this embodiment of the application performs precise compensation of 0.5dB-2dB on the normal signal through a high-bandwidth operational amplifier, ensuring that the amplitude of the compensated signal is consistent with that before filtering, thus achieving the dual goal of "interference attenuation and normal signal without distortion".

[0074] Specifically, the current / voltage sensor synchronously acquires the normal signal amplitude before and after filtering, calculates the attenuation, and the MCU (Micro Controller Unit) sends a compensation command to the gain adjustment circuit accordingly to ensure that the compensation amount is completely matched with the attenuation amount.

[0075] It should be noted that the gain adjustment circuit in this embodiment only compensates for normal signals below 20kHz (such as 50Hz power frequency and BMS communication signals), and has no compensation effect on high-frequency interference signals above 20kHz, so as to avoid the interference signal being amplified.

[0076] Therefore, to address high-frequency wave carrier conducted interference, the filter parameters are dynamically adjusted to achieve accurate filtering within a wide frequency band of 20kHz-1GHz, while also considering the filtering effect and the charging and discharging efficiency of the energy storage system. This solves the problem of "protection failure due to frequency mismatch" in fixed-frequency filters in related technologies.

[0077] The multi-layer shielding module 400 is used to respond to shielding status monitoring commands and control the preset shielding layer to filter out radiated interference signals.

[0078] Optionally, in some embodiments, the multi-layer shielding module 400 is a composite structure of an inner shielding layer, an intermediate absorbing layer, and an outer shielding layer, wherein the inner shielding layer is a copper foil sealed cavity; the intermediate absorbing layer is a carbonyl iron powder and epoxy resin composite material; and the outer shielding layer is an aluminum alloy plate of a certain thickness.

[0079] It is understood that the embodiments of this application are based on the synergistic technology of electromagnetic shielding and wave absorption attenuation. The inner shielding layer (copper foil) uses the reflection effect of good conductors on electromagnetic waves to reflect high-frequency wave carriers back into the shielding cavity, reducing signal radiation outward. The middle absorbing layer (carbonyl iron powder and epoxy resin composite material) uses the magnetic loss and dielectric loss characteristics of carbonyl iron powder to convert the high-frequency wave carriers reflected in the shielding cavity into heat energy for consumption, avoiding secondary interference caused by signal reflection in the shielding layer. The outer shielding layer (aluminum alloy plate + nickel powder coating) further enhances the reflection effect and blocks the residual high-frequency wave carriers that are not reflected by the inner shielding layer and absorbed by the middle absorbing layer, forming a multi-layer protection system of "reflection-absorption-re-reflection".

[0080] Specifically, in this embodiment, the inner shielding layer uses a copper foil with a thickness of 0.2 mm. When a high-frequency wave carrier (especially mid-to-low frequency radiated interference in the 20kHz-200MHz band) comes into contact with the inner shielding layer, the high conductivity of the copper foil prevents electromagnetic waves from penetrating. More than 90% of the interference signal is reflected back into the shielding cavity, achieving a two-way constraint that prevents internal interference from spreading outward and external interference from intruding inward.

[0081] The intermediate absorbing layer is made of carbonyl iron powder (particle size 1-5μm, magnetic permeability μ≥80) and epoxy resin at a mass ratio of 3:1, with a thickness of 5mm. It is tightly bonded to the outside of the inner shielding layer, covering the entire area of ​​the inner shielding layer. High-frequency wave carriers reflected by the inner shielding layer (especially high-frequency signals in the 200MHz-1GHz band) will enter the intermediate absorbing layer. The magnetic domains of the carbonyl iron powder will vibrate and rub under the action of electromagnetic waves, converting electromagnetic energy into heat energy (magnetic loss). At the same time, the difference in dielectric constant between epoxy resin and carbonyl iron powder will cause electromagnetic waves to be refracted multiple times at the interface, further consuming energy (dielectric loss).

[0082] The outer shielding layer is made of 1mm thick aluminum alloy plate (conductivity ≥37MS / m), with a 0.1mm thick electromagnetic shielding coating (containing nickel powder, mass fraction ≥60%) sprayed on the surface, covering the outside of the middle absorbing layer and fixedly connected to the energy storage chamber shell. The residual high-frequency wave carrier after attenuation by the middle absorbing layer will be reflected by the aluminum alloy plate of the outer shielding layer (primary reflection), and the trace signal that is not reflected will be further reflected by the nickel powder coating (secondary reflection), forming a "double reflection barrier".

[0083] The multi-layer shielding module 400 receives shielding status monitoring instructions, including "detection type" (inner shielding layer sealing test / middle absorbing layer absorption efficiency test / outer shielding layer shielding efficiency test), "detection cycle" (e.g., 10s / 30s / 60s), and "threshold requirements" (e.g., inner shielding layer sealing ≤ 0.1mm gap, absorbing layer absorption attenuation ≥ 25dB, outer shielding layer shielding efficiency ≥ 70dB).

[0084] In addition, the multi-layer shielding module 400 also needs to provide feedback on protection status data. It measures the width of the welded seam of the inner shielding layer by irradiating it with a laser displacement sensor, collects the high-frequency wave carrier amplitude values ​​on both sides of the absorbing layer by a miniature electromagnetic probe, calculates the attenuation, and compares the high-frequency wave carrier amplitude values ​​on the inner and outer sides of the outer shielding layer by a shielding effectiveness tester to calculate the shielding effectiveness.

[0085] Therefore, by blocking the radiation propagation of high-frequency wave carriers in the spatial dimension, the core equipment (battery clusters, BMS) inside the energy storage system is protected from external radiation interference, while preventing internal interference from spreading outward and affecting surrounding equipment, thus solving the problem of "easily generating secondary interference" in related technologies with a single shielding layer.

[0086] Figure 2 This is a schematic diagram of the structure of a high-frequency electromagnetic protection system for power storage according to a specific embodiment of this application, as shown below. Figure 2 As shown, the high-frequency electromagnetic protection system 10 for power storage in this embodiment further includes: a status monitoring and feedback module 400, used to acquire the interference attenuation, impedance matching error, and operating temperature of the adaptive filtering module 300, and to acquire the shielding effectiveness of the outer shielding layer, the gap width of the inner shielding layer, and the absorption attenuation of the intermediate absorbing layer; when the interference attenuation is less than a first preset threshold, or the impedance matching error is greater than a second preset threshold, or the operating temperature is greater than a preset temperature threshold, the optimal filtering parameters are adjusted according to a first preset adjustment strategy, and a parameter adjustment command is generated; when the shielding effectiveness is less than a third preset threshold, or the gap width is greater than a fourth preset threshold, or the absorption attenuation is less than a fifth preset threshold, the shielding status monitoring command is adjusted according to a second preset adjustment strategy, and a shielding status adjustment command is generated; the parameter adjustment command is sent to the interference suppression control module 200, and the shielding status adjustment command is sent to the multi-layer shielding module 400.

[0087] In this embodiment of the application, the first preset threshold is 75dB, the second preset threshold is 5%, the preset temperature threshold is 70℃, the third preset threshold is 70dB, the fourth preset threshold is 0.1mm, and the fifth preset threshold is 25dB.

[0088] Understandably, in the high-frequency electromagnetic protection system 10 for power storage, the status monitoring and feedback module 400 is the "core monitoring hub" that ensures stable protection effects and realizes closed-loop system control. It collects real-time operating status data and protection effect data from each adaptive filtering module 300 and interference suppression control module 200, captures anomalies such as parameter drift and performance degradation, verifies the protection effect, and ensures that the protection strategy dynamically adapts to changes in interference.

[0089] Specifically, this application embodiment accurately captures status information through the acquisition of multi-dimensional data. For the adaptive filtering module 300, its operating temperature, impedance matching error, and the amplitude of the main circuit current / voltage before and after filtering are collected, and the interference attenuation is calculated based on the amplitude.

[0090] When the operating temperature is greater than 70℃, the first preset adjustment strategy is to reduce the capacitance and inductance values, and switch the topology from LC to RC. When the interference attenuation is less than 75dB, the first preset adjustment strategy is to increase the inductance value, decrease the resistance value, and recalculate the LC / RC parameters according to the interference frequency. When the impedance matching error is greater than 5%, the first preset adjustment strategy is to increase / decrease the adjustable resistance and capacitance values ​​to make the filter circuit impedance approach the main circuit impedance and shorten the impedance detection cycle.

[0091] When the shielding effectiveness is less than 70dB, the second preset adjustment strategy is to shorten the monitoring cycle, activate the outer shielding layer enhancement mode, and raise the effectiveness threshold warning line; when the gap width is greater than 0.1mm, the second preset adjustment strategy is to activate full-dimensional monitoring, lower the gap width threshold, and issue an audible and visual alarm; when the absorption attenuation is less than 25dB, the second preset adjustment strategy is to control the temperature rise of the micro heating element, increase the permeability of the carbonyl iron powder, increase the number of absorption attenuation monitoring points, and shorten the detection interval.

[0092] Therefore, the embodiments of this application adjust parameters / instructions in a targeted manner based on specific judgment conditions to avoid "blind adjustment" (such as optimizing power consumption parameters only when the temperature is too high, without affecting the attenuation effect); high-frequency monitoring and fast instruction transmission (delay ≤100ms) ensure that protection issues are resolved in a timely manner to avoid interference and leakage; and ensure that protection does not affect the normal operation of the energy storage system during the adjustment process.

[0093] Based on the description of the above embodiments, the high-frequency electromagnetic protection system for power storage achieves broadband protection of 20kHz-1GHz through the synergy of "adaptive filtering + multi-layer shielding," improving overall shielding effectiveness and avoiding secondary interference. Simultaneously, impedance matching and gain compensation reduce charging and discharging efficiency, ensuring the control accuracy of equipment such as the BMS. Relying on status monitoring and backup strategies, it guarantees the stability of the power system. It overcomes the frequency adaptation, efficiency contradictions, and reliability bottlenecks in related technologies, providing a guarantee for the safe and efficient operation of energy storage power stations.

[0094] The high-frequency carrier electromagnetic protection system for power storage proposed in this application includes a high-frequency carrier detection module that collects high-frequency carrier digital signals from the power storage system; an interference suppression control module that identifies the high-frequency carrier digital signals using a preset interference signal identification algorithm to obtain the interference type and intensity level; an optimal filtering parameter optimization algorithm that optimizes the filtering parameters based on the interference type and intensity level; and a shielding status monitoring command that is obtained through a preset shielding status linkage algorithm. An adaptive filtering module that controls the switching or combination of capacitor and inductor arrays according to the optimal filtering parameters completes filtering operations within a preset frequency range, filtering out conducted interference signals. A multi-layer shielding module that responds to the shielding status monitoring command controls the preset shielding layers to filter out radiated interference signals. This solves the problems of insufficient protection targeting, single protection level, and poor compatibility in electromagnetic protection technologies, achieving precise and efficient protection against high-frequency carrier electromagnetic interference while ensuring the operational efficiency and stability of the power storage system.

[0095] Next, with reference to the accompanying drawings, the method for electromagnetic protection of high-frequency waves carrying power storage according to the embodiments of this application is described.

[0096] Figure 3 This is a flowchart of a high-frequency electromagnetic protection method for power storage according to an embodiment of this application.

[0097] like Figure 3 As shown, the high-frequency electromagnetic protection method for power storage includes the following steps: Step S301: Acquire the high-frequency carrier digital signal of the power storage system; Step S302: Using a preset interference signal identification algorithm, identify the high-frequency carrier digital signal, obtain the interference type and interference intensity level of the interference signal, and use a preset filtering parameter optimization algorithm to obtain the optimal filtering parameters based on the interference type and interference intensity level, and obtain the shielding status monitoring command through a preset shielding status linkage algorithm. Step S303: Based on the optimal filtering parameters, control the switching on and off or combination of the capacitor array and the inductor array to complete the filtering operation within the preset frequency range, filter out conducted interference signals, and respond to the shielding status monitoring command to control the preset shielding layer to filter out radiated interference signals.

[0098] It should be noted that the foregoing explanation of the embodiment of the high-frequency electromagnetic protection system for power storage also applies to the high-frequency electromagnetic protection method for power storage in this embodiment, and will not be repeated here.

[0099] According to the electromagnetic protection method for high-frequency carrier interference in power storage proposed in this application, the high-frequency carrier digital signal of the power storage system is collected; the high-frequency carrier digital signal is identified through a preset interference signal identification algorithm to obtain the interference type and interference intensity level; based on the interference type and interference intensity level, the optimal filtering parameters are obtained using a preset filtering parameter optimization algorithm; and a shielding status monitoring command is obtained through a preset shielding status linkage algorithm; based on the optimal filtering parameters, the switching or combination of capacitor array and inductor array is controlled to complete the filtering operation within a preset frequency range, filtering out conducted interference signals, and responding to the shielding status monitoring command to control the preset shielding layer to filter out radiated interference signals. This solves the problems of insufficient protection targeting, single protection level, and poor compatibility of electromagnetic protection technologies, achieving precise and efficient protection against high-frequency carrier electromagnetic interference, while ensuring the operating efficiency and stability of the power storage system.

[0100] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may include: The memory 401, the processor 402, and the computer program stored on the memory 401 and capable of running on the processor 402.

[0101] When the processor 402 executes the program, it implements the high-frequency electromagnetic protection method for power storage provided in the above embodiments.

[0102] Furthermore, electronic devices also include: Communication interface 403 is used for communication between memory 401 and processor 402.

[0103] The memory 401 is used to store computer programs that can run on the processor 402.

[0104] The memory 401 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0105] If the memory 401, processor 402, and communication interface 403 are implemented independently, then the communication interface 403, memory 401, and processor 402 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0106] Optionally, in a specific implementation, if the memory 401, processor 402, and communication interface 403 are integrated on a single chip, then the memory 401, processor 402, and communication interface 403 can communicate with each other through an internal interface.

[0107] Processor 402 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of this application.

[0108] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for electromagnetic protection of high-frequency wave carriers in power storage.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0110] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0111] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0112] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or more of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0113] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0114] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A high-frequency electromagnetic protection system for power storage, characterized in that, include: The module includes a high-frequency carrier detection module, an interference suppression control module, an adaptive filtering module, and a multi-layer shielding module. The high-frequency carrier detection module is used to collect high-frequency carrier digital signals from the power energy storage system. The interference suppression control module is used to identify the high-frequency carrier digital signal through a preset interference signal identification algorithm, obtain the interference type and interference intensity level of the interference signal, obtain the optimal filtering parameters based on the interference type and interference intensity level using a preset filtering parameter optimization algorithm, and obtain the shielding status monitoring command through a preset shielding status linkage algorithm. The adaptive filtering module is used to control the on / off state or combination of the capacitor array and the inductor array according to the optimal filtering parameters, so as to complete the filtering operation within the preset frequency range and filter out conducted interference signals. The multi-layer shielding module is used to respond to the shielding status monitoring command and control the preset shielding layer to filter out radiative interference signals.

2. The high-frequency electromagnetic protection system for power storage according to claim 1, characterized in that, The multi-layer shielding module is a composite structure consisting of an inner shielding layer, a middle absorbing layer, and an outer shielding layer. The inner shielding layer is a sealed cavity made of copper foil. The intermediate absorbing layer is a composite material of carbonyl iron powder and epoxy resin. The outer shielding layer is an aluminum alloy plate of a certain thickness.

3. The high-frequency electromagnetic protection system for power storage according to claim 2, characterized in that, Also includes: The status monitoring and feedback module is used to obtain the interference attenuation, impedance matching error and operating temperature of the adaptive filtering module, and to obtain the shielding effectiveness of the outer shielding layer, the gap width of the inner shielding layer and the absorption attenuation of the middle absorbing layer. If the interference attenuation is less than a first preset threshold, or the impedance matching error is greater than a second preset threshold, or the operating temperature is greater than a preset temperature threshold, the optimal filtering parameters are adjusted according to the first preset adjustment strategy, and a parameter adjustment command is generated. If the shielding effectiveness is less than the third preset threshold, or the gap width is greater than the fourth preset threshold, or the absorption attenuation is less than the fifth preset threshold, the shielding status monitoring command is adjusted according to the second preset adjustment strategy, and a shielding status adjustment command is generated. The parameter adjustment command is sent to the interference suppression control module, and the shielding status adjustment command is sent to the multi-layer shielding module.

4. The high-frequency electromagnetic protection system for power storage according to claim 3, characterized in that, The interference suppression control module includes: an interference identification unit, a model selection unit, a parameter calculation unit, and a dynamic verification unit, wherein... The interference identification unit is used to extract key features of the high-frequency carrier digital signal through the preset interference signal identification algorithm, obtain the acquisition location, interference frequency and amplitude of the interference signal, obtain the interference type according to the acquisition location, obtain the frequency bandwidth characteristics of the interference signal according to the interference frequency, and obtain the interference intensity level according to the amplitude. The model selection unit is used to select the current filter circuit model based on the frequency bandwidth characteristics using a preset filter parameter optimization algorithm. The parameter calculation unit is used to generate an objective function based on the current filter circuit model, obtain the current optimal solution based on the objective function, a preset iterative calculation strategy and preset constraints, and determine the optimal filter parameters based on the current optimal solution. The dynamic verification unit is used to re-execute the steps in the interference identification unit, the model selection unit, and the parameter calculation unit according to the parameter adjustment instruction.

5. The high-frequency electromagnetic protection system for power storage according to claim 3, characterized in that, The adaptive filtering module includes: a reconfigurable filtering circuit and a state monitoring unit, wherein, The reconfigurable filter circuit is used to match the current circuit topology according to the frequency bandwidth characteristics of the interference signal, calculate the current capacitance value and the current resistance value according to the interference frequency of the interference signal and the preset calculation formula corresponding to the current circuit topology, and control the on / off or combination of the capacitor array and the inductor array according to the current capacitance value and the current resistance value. The status monitoring unit is used to collect the operating temperature of the reconfigurable filter circuit and send the operating temperature to the status monitoring and feedback module.

6. The high-frequency electromagnetic protection system for power storage according to claim 5, characterized in that, The interference suppression control module further includes: The impedance matching unit is used to acquire the actual impedance of the main circuit of the power storage system, calculate the impedance matching error between the actual impedance and the preset target impedance, and adjust the output impedance according to the impedance matching error until the impedance matching error is within the preset range.

7. The high-frequency electromagnetic protection system for power storage according to claim 5, characterized in that, The adaptive filtering module further includes: The gain adjustment circuit is used to acquire the first amplitude of the normal signal before filtering and the second amplitude of the normal signal after filtering, calculate the current attenuation based on the first amplitude and the second amplitude, generate a compensation command based on the current attenuation, and control the matching of the compensation amount with the current attenuation based on the compensation command.

8. The high-frequency electromagnetic protection system for power storage according to claim 1, characterized in that, The high-frequency carrier detection module includes: The acquisition chip unit is used to acquire the high-frequency carrier electromagnetic signal of the power energy storage system and convert the conditioned high-frequency carrier electromagnetic signal into the high-frequency carrier digital signal according to a preset sampling rate.

9. A method for electromagnetic protection against high-frequency wave carriers in power energy storage, characterized in that, Includes the following steps: Acquire high-frequency carrier digital signals from power energy storage systems; The high-frequency carrier digital signal is identified by a preset interference signal identification algorithm to obtain the interference type and interference intensity level. Based on the interference type and interference intensity level, the optimal filtering parameters are obtained by a preset filtering parameter optimization algorithm. The shielding status monitoring command is obtained by a preset shielding status linkage algorithm. Based on the optimal filtering parameters, the switching or combination of capacitor array and inductor array is controlled to complete the filtering operation within the preset frequency range, filter out conducted interference signals, and respond to the shielding status monitoring command to control the preset shielding layer to filter out radiated interference signals.

10. An electronic device, characterized in that, include: The device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the high-frequency electromagnetic protection method for power storage as described in claim 9.

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