Electromagnetic pulse simulation method and device, electronic equipment and storage medium

Abstract

The invention discloses an electromagnetic pulse simulation method and device, electronic equipment and a storage medium, and relates to the technical field of electromagnetic pulse simulation. The pulse compression loop module is used for performing sharpening treatment to form a double-exponential waveform conforming to high-altitude electromagnetic pulse characteristics, and meanwhile, an upper polar plate and a lower polar plate of the transmission line structure module are used for converting pulse energy into a bounded wave radiation field so as to simulate the coupling effect of the high-altitude electromagnetic pulse on ground equipment; and finally, a PoE port effect experiment module is injected to evaluate the response characteristic, the damage mechanism and the system-level failure behavior, so that the problems of insufficient waveform reproduction precision, huge system size and difficulty in deployment caused by the adoption of a traditional Marx generator and a modular splicing structure in an existing high-altitude electromagnetic pulse simulation method can be solved; the technical effect of improving experiment repeatability and protection design accuracy is achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electromagnetic pulse simulation, and in particular to an electromagnetic pulse simulation method and device, electronic equipment, and storage medium. Background Art

[0002] High-altitude electromagnetic pulses (HAPs), a key research topic in the field of high-power electromagnetic pulse protection and effects assessment, are widely used in anti-interference testing of power systems, communications equipment, and industrial control systems. In this work, a platform for HAP simulation and system-level effects testing has been constructed through the collaborative operation of a Marx generator, a pulse compression circuit, and a transmission line structure.

[0003] The existing high-altitude electromagnetic pulse simulation method directly uses the traditional Marx generator and modular splicing structure, and does not fully consider the strict requirements of existing standards on waveform front, width and peak field strength. This may lead to insufficient waveform reproduction accuracy, or the system is bulky and difficult to deploy, thus affecting the repeatability of the experiment and the accuracy of the protection design. Summary of the Invention

[0004] The present disclosure provides an electromagnetic pulse simulation method, device, electronic device, and storage medium. Its primary purpose is to address issues such as insufficient waveform reproduction accuracy, bulky systems, and difficult deployment, which affect experimental repeatability and the accuracy of protective design.

[0005] According to a first aspect of the present disclosure, there is provided an electromagnetic pulse simulation method, comprising:

[0006] In response to an external control signal, the pulse trigger source module synchronously triggers the switches of each level in the Marx generator module to generate a high voltage pulse;

[0007] The high-voltage pulse is transmitted to the pulse compression circuit module through the transmission component module, and the pulse compression circuit module performs a steepening process on the high-voltage pulse to form a double-exponential waveform that conforms to the characteristics of the high-altitude electromagnetic pulse;

[0008] The steepened pulse energy is converted into a bounded wave radiation field through a transmission line structure module, wherein the transmission line structure module includes upper and lower plates for simulating the coupling effect of high-altitude electromagnetic pulses on ground equipment;

[0009] The bounded wave radiation field is injected into the PoE port effect experimental module to evaluate the response characteristics, damage mechanism and system-level failure behavior of the PoE port under the action of high-altitude electromagnetic pulses.

[0010] Optionally, injecting the bounded wave radiation field into a PoE port effect experiment module to evaluate the response characteristics, damage mechanism, and system-level failure behavior of the PoE port under the action of a high-altitude electromagnetic pulse includes:

[0011] The electrical response and functional state changes of the PoE port under the action of electromagnetic pulses are collected based on a preset collection device.

[0012] Optionally, the Marx generator module adopts a unilateral charging structure and outputs the high-voltage pulse by charging in parallel and discharging in series with multiple capacitors.

[0013] Optionally, the switches at each level are three-electrode field distortion gas spark gap switches.

[0014] Optionally, a uniform electromagnetic field region is formed between the upper and lower plates of the transmission line structure module to simulate the coupling path and field strength distribution of high-altitude electromagnetic pulses on ground equipment.

[0015] According to a second aspect of the present disclosure, there is provided an electromagnetic pulse simulation device, comprising:

[0016] A control unit, configured to synchronously trigger the switches of each level in the Marx generator module via the pulse trigger source module in response to an external control signal to generate a high-voltage pulse;

[0017] a processing unit, configured to transmit the high-voltage pulse to a pulse compression circuit module through a transmission component module, wherein the pulse compression circuit module performs a steepening process on the high-voltage pulse to form a double-exponential waveform that conforms to the characteristics of a high-altitude electromagnetic pulse;

[0018] A transmission unit, configured to convert the steepened pulse energy into a bounded wave radiation field through a transmission line structure module, wherein the transmission line structure module includes upper and lower plates, configured to simulate the coupling effect of high-altitude electromagnetic pulses on ground equipment;

[0019] An evaluation unit is used to inject the bounded wave radiation field into the PoE port effect experimental module to evaluate the response characteristics, damage mechanism and system-level failure behavior of the PoE port under the action of high-altitude electromagnetic pulses.

[0020] Optionally, the evaluation unit is further configured to:

[0021] The electrical response and functional state changes of the PoE port under the action of electromagnetic pulses are collected based on a preset collection device.

[0022] Optionally, the Marx generator module adopts a unilateral charging structure and outputs the high-voltage pulse by charging in parallel and discharging in series with multiple capacitors.

[0023] Optionally, the switches at each level are three-electrode field distortion gas spark gap switches.

[0024] Optionally, a uniform electromagnetic field region is formed between the upper and lower plates of the transmission line structure module to simulate the coupling path and field strength distribution of high-altitude electromagnetic pulses on ground equipment.

[0025] According to a third aspect of the present disclosure, there is provided an electronic device, including:

[0026] at least one processor; and

[0027] a memory communicatively connected to the at least one processor; wherein,

[0028] The memory stores instructions that can be executed by the at least one processor. The instructions are executed by the at least one processor to enable the at least one processor to perform the method described in the first aspect.

[0029] According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable the computer to execute the method described in the first aspect.

[0030] According to a fifth aspect of the present disclosure, a computer program product is provided, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements the method as described in the first aspect above.

[0031] The electromagnetic pulse simulation method, device, electronic device and storage medium provided by the present disclosure, through this application, a pulse trigger source module is used to synchronously trigger the switches of each level of the Marx generator to generate high-voltage pulses, and a pulse compression loop module is used to perform steepening processing to form a double exponential waveform that conforms to the characteristics of high-altitude electromagnetic pulses. At the same time, the upper and lower plates of the transmission line structure module are used to convert the pulse energy into a bounded wave radiation field to simulate the coupling effect of the high-altitude electromagnetic pulse on the ground equipment, and finally the pulse energy is injected into the PoE port effect experimental module to evaluate its response characteristics, damage mechanism and system-level failure behavior. Therefore, it can solve the problems of insufficient waveform reproduction accuracy, large system size and difficult deployment caused by the use of traditional Marx generators and modular splicing structures in existing high-altitude electromagnetic pulse simulation methods, and achieve the technical effect of improving experimental repeatability and protection design accuracy.

[0032] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are provided to facilitate a better understanding of the present invention and do not constitute a limitation of the present disclosure.

[0034] Figure 1 A schematic flow chart of an electromagnetic pulse simulation method provided by an embodiment of the present disclosure;

[0035] Figure 2 A schematic structural diagram of an electromagnetic pulse simulation device provided in an embodiment of the present disclosure;

[0036] Figure 3 A schematic block diagram of an exemplary electronic device provided for an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The following description of exemplary embodiments of the present disclosure is made in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding. These details should be considered as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0038] The electromagnetic pulse simulation method, device, electronic device, and storage medium according to the embodiments of the present disclosure are described below with reference to the accompanying drawings.

[0039] Figure 1 A schematic flow chart of an electromagnetic pulse simulation method provided in an embodiment of the present disclosure.

[0040] like Figure 1 As shown, the method comprises the following steps:

[0041] Step 101 : In response to an external control signal, a pulse trigger source module synchronously triggers switches of various stages in a Marx generator module to generate a high voltage pulse.

[0042] The external control signal can be understood as a command signal from the test system's external control unit, such as a control command for initiating the high-voltage pulse generation process, which can trigger the initiation of the entire trigger and high-voltage pulse generation process. The pulse trigger source module is a functional module specifically used to generate and output synchronous trigger signals. Its core function is to provide precise and synchronous trigger control for each level of switches in the Marx generator module, ensuring that each level of switches can operate at the same time. The Marx generator module is a device that generates high-voltage pulses by superimposing multi-stage capacitor charging and discharging. The switches at each level within it are key components for switching the capacitors from a parallel charging state to a series discharging state. The switches used in this solution are specifically three-electrode field-distorted gas spark gap switches. This switch utilizes the principle of field distortion and can quickly complete the switching of the conduction state under the action of an external trigger signal. It has the characteristics of fast response speed and good conduction consistency, and can meet the stringent requirements of high-voltage pulse generation for the synchronization of switch actions. When an external control signal is input to the pulse trigger source module, the pulse trigger source module will quickly respond to the signal, generate and output trigger pulses with strict time synchronization, and these trigger pulses will simultaneously act on each level of the three-electrode field distortion gas spark gap switch in the Marx generator module, ensuring that the switches at each level are turned on at the same moment. This synchronous triggering mechanism is crucial because only when the switches at each level are turned on synchronously can the capacitors at each level in the Marx generator module, which were originally in a parallel charging state, be instantly switched to a series discharge state. By superimposing the discharge energy of multiple capacitors, the required high-voltage pulse is generated at the output end of the Marx generator module. This high-voltage pulse will serve as the basic high-voltage signal for subsequent pulse waveform adjustment (such as forming a double exponential waveform and achieving pulse front steepening), providing the core high-voltage pulse source for the entire electromagnetic pulse test system.

[0043] Step 102: The high-voltage pulse is transmitted to a pulse compression circuit module through a transmission component module. The pulse compression circuit module performs a steepening process on the high-voltage pulse to form a double-exponential waveform that conforms to the characteristics of a high-altitude electromagnetic pulse.

[0044] The transmission component module is a key transmission component connecting the Marx generator module and the pulse compression circuit module. Its main function is to stably and efficiently transmit the high-voltage pulse output by the Marx generator to the subsequent pulse compression circuit, ensuring that the pulse energy is less lost during transmission and providing a stable input foundation for subsequent pulse waveform processing. The pulse compression circuit module is the core functional module for waveform optimization of high-voltage pulses. Its core task is to achieve steepening of the input high-voltage pulse front. Through specific circuit design (such as a compression circuit composed of components such as inductors and capacitors), the rise time of the pulse front is shortened, making the pulse front steeper, so as to meet the stringent requirements of high-altitude electromagnetic pulses on the front time. According to the typical HEMP electromagnetic pulse waveform characteristics given in the International Electrotechnical Commission IEC61000-2-9 standard, the front of the double-exponential pulse must reach 2.5ns, and the steepening of the pulse compression circuit module is the key link in achieving this front indicator.

[0045] A double-exponential waveform that meets the characteristics of high-altitude electromagnetic pulses refers to a waveform that exhibits a double-exponential variation pattern, first rising rapidly to a peak value and then slowly decreasing. In addition to a leading edge time of 2.5ns, it must also meet characteristic parameters such as a pulse width of 23ns and a pulse peak field strength of 50kV / m. These parameters together constitute the standard electromagnetic pulse waveform used for the minimum safety system vulnerability assessment test of power plants. While the pulse compression circuit module steepens the leading edge of the high-voltage pulse, it also cooperates with the preceding circuit (such as an overdamped RC circuit that discharges the load resistor through a charged capacitor) to ultimately form a complete double-exponential waveform that meets the above standards, laying an important foundation for the subsequent formation of the required pulsed electromagnetic field between the upper and lower plates of the transmission line.

[0046] Step 103: convert the steepened pulse energy into a bounded wave radiation field through a transmission line structure module. The transmission line structure module includes upper and lower plates for simulating the coupling effect of high-altitude electromagnetic pulses on ground equipment.

[0047] The transmission line structure module includes upper and lower plates, and its core function is to simulate the coupling effect of high-altitude electromagnetic pulses on ground equipment. Specifically, the steepened pulse energy refers to the high-voltage pulse energy with a steep front (such as the 2.5ns front feature in the IEC61000-2-9 standard) after processing by the pulse compression circuit module. This energy is the energy basis for the subsequent bounded wave radiation field. The transmission line structure module is a key component for energy conversion and field formation. The upper and lower plates of the transmission line are the core components of the transmission line. The two are arranged relative to each other to form a certain spatial structure, providing a physical carrier for the formation of the pulse electromagnetic field. When the steepened pulse energy is input into the transmission line structure module, the energy will be transferred and distributed between the upper and lower plates of the transmission line, and then a pulse electromagnetic field will be excited in the space between the two plates, that is, a bounded wave radiation field will be formed. This bounded wave radiation field can better simulate the field distribution characteristics of actual high-altitude electromagnetic pulses. The reason why the transmission line structure module can be used to simulate the coupling effect of high-altitude electromagnetic pulses on ground equipment is that when high-altitude electromagnetic pulses act on ground equipment, their electromagnetic fields will be electromagnetically coupled with various ports and cables of the equipment, thereby generating induced current or voltage inside the equipment, which may cause equipment damage or failure; the bounded wave radiation field formed by the transmission line structure module can reproduce similar electromagnetic coupling scenarios in the test environment, providing practical test conditions for studying the vulnerability of ground equipment such as the minimum safety system of power stations under the action of high-altitude electromagnetic pulses, making subsequent research on equipment damage, failure and other effect phenomena and action mechanisms more targeted and accurate.

[0048] Step 104 : injecting the bounded wave radiation field into the PoE port effect experiment module to evaluate the response characteristics, damage mechanism, and system-level failure behavior of the PoE port under the action of high-altitude electromagnetic pulses.

[0049] A bounded wave radiation field, generated through the transmission line structure module, conforms to the typical HEMP electromagnetic pulse waveform characteristics specified in the International Electrotechnical Commission's IEC61000-2-9 standard. Specifically, it exhibits a bi-exponential pulse with a 2.5ns pulse leading edge, a 23ns pulse width, and a peak field strength of 50kV / m, simulating the field characteristics of an actual high-altitude electromagnetic pulse. PoE ports, critical ports on a device (Power over Ethernet ports), are essential interfaces for connecting power and data to the outside world. In a power plant's minimum safety system, these ports are a key pathway for electromagnetic pulses to couple into the device. Their performance under high-altitude electromagnetic pulses directly impacts the system's safety and stability. The PoE Port Effects Experiment Module is a functional module specifically designed for conducting PoE port electromagnetic pulse effects experiments. This module typically includes the device housing the PoE port to be tested, measurement instruments (such as an oscilloscope or spectrum analyzer) for monitoring the port's response, and an acquisition system for recording and analyzing experimental data. Its core function is to provide an experimental platform for the coupling of bounded wave radiation fields with PoE ports and enable accurate monitoring and recording of these effects.

[0050] Specifically, the process of injecting a bounded wave radiation field into the PoE port effect test module essentially simulates electromagnetic coupling between a high-altitude electromagnetic pulse (EMP) and a PoE port via spatial radiation, allowing the energy of the bounded wave radiation field to be coupled into the device through the PoE port. During this process, the PoE port effect test module monitors and records in real time the changes in various parameters of the PoE port under the influence of the bounded wave radiation field at different intensities and durations. This is used to evaluate its response characteristics, such as changes in the voltage / current waveforms induced at the port, the degree of interference with the data transmission signal, and fluctuations in the port's power supply stability. Furthermore, by inspecting the physical condition of the PoE port and connected devices after the experiment (such as whether there is any external damage or whether internal circuit components have broken down or burned out), combined with the monitoring data, an in-depth analysis of the damage mechanism can be conducted. Specifically, it can be determined whether the PoE port malfunctions due to overvoltage breakdown, overcurrent burnout, or signal interference under the EMP, as well as the critical conditions and evolution of these damages. In addition, by observing whether damage or abnormality of the PoE port will cause functional degradation or even complete failure of the entire power station's minimum safety system, its system-level failure behavior can also be evaluated. For example, whether port failure leads to interruption of key system control signals and failure of important equipment to power supply normally, thereby providing key experimental basis for PoE ports for a comprehensive assessment of the vulnerability of the power station's minimum safety system to high-altitude electromagnetic pulses.

[0051] In some embodiments, injecting the bounded wave radiation field into a PoE port effect experiment module to evaluate the response characteristics, damage mechanism, and system-level failure behavior of the PoE port under the action of a high-altitude electromagnetic pulse includes:

[0052] The electrical response and functional state changes of the PoE port under the action of electromagnetic pulses are collected based on a preset collection device.

[0053] During the process of injecting a bounded wave radiation field into the PoE port effect experimental module, collecting the electrical response and functional state changes of the PoE port under the influence of electromagnetic pulses based on a preset acquisition device is a key step in evaluating the various characteristics of the PoE port under the influence of high-altitude electromagnetic pulses. The preset acquisition device refers to a series of measurement and recording devices pre-configured to accurately monitor the response of the PoE port. These devices typically include an oscilloscope capable of capturing rapidly changing electrical signals (which can be used to record the instantaneous waveforms of voltage and current), a spectrum analyzer for analyzing the signal's spectral characteristics, a status monitor for real-time monitoring of the device's operating status, and a data recorder for storing and processing large amounts of experimental data. These devices work together to comprehensively and accurately collect various types of response information of the PoE port under the influence of electromagnetic pulses.

[0054] Specifically, the electrical response of the PoE port mainly refers to the changes in electrical parameters caused by high-altitude electromagnetic pulses (i.e., the injected bounded wave radiation field, whose waveform is a double-exponential pulse that complies with the IEC61000-2-9 standard, with a pulse leading edge of 2.5ns, a pulse width of 23ns, and a pulse peak field strength of 50kV / m). For example, the voltage amplitude and waveform changes induced at the port (including whether overvoltage spikes occur, whether the voltage waveform is distorted, etc.), the current size and change trend passing through the port (such as whether transient overcurrent occurs, current duration, etc.), the amplitude attenuation, phase shift and interference noise of the port transmission signal, etc. The preset acquisition device can capture the dynamic changes of these electrical parameters in real time through an electrical connection with the PoE port (such as a probe, coupler, etc.), and convert them into analyzable electrical signal data.

[0055] The functional status changes of PoE ports focus on their functional implementation under the influence of electromagnetic pulses, including but not limited to whether the port can normally output power (i.e., whether the power supply to the connected device is interrupted and whether the power supply voltage is stable within the normal range), whether the data transmission function is normal (such as whether the transmission and reception of Ethernet data experience packet loss, increased latency, or communication interruption), and whether the physical condition of the port itself is intact (such as whether the interface is damaged or internal circuit components are burned out due to the electromagnetic pulse impact, resulting in loss of function). The preset data collection device can collect information on these functional status changes by monitoring the operating status indicators of the connected devices, reading the device's operation logs, and detecting the on / off status of the data transmission link. The continuous collection and recording of these electrical responses and functional status changes by the preset data collection device can provide first-hand experimental data for subsequent analysis of the PoE port's response characteristics (such as the time characteristics and amplitude characteristics of the response), damage mechanisms (such as the damage path caused by overvoltage / overcurrent), and system-level failure behavior (such as the impact of port functional failure on the entire system). This is an important foundation for achieving a comprehensive evaluation of PoE ports.

[0056] In some embodiments, the Marx generator module adopts a unilateral charging structure and outputs the high-voltage pulse by charging in parallel and discharging in series with multiple capacitors.

[0057] The Marx generator module adopts a single-side charging structure, the main purpose of which is to reduce the volume of the entire generator, making it easier to install and layout in the test system. Single-side charging specifically refers to charging each stage of capacitor inside the Marx generator from one side of the circuit. Compared with the double-side charging method, this structure can simplify the wiring and connection of the charging circuit, reduce unnecessary element settings, and thus significantly compress the overall size while ensuring the charging effect. At the same time, the Marx generator module outputs high-voltage pulses through the way of multi-stage capacitor parallel charging and series discharging, wherein the multi-stage capacitor is the core element for realizing high-voltage output, and its number can be reasonably set according to the amplitude of the required high-voltage pulse. In the charging stage, each stage of capacitor is connected in parallel, at this time the external high-voltage DC power supply will charge all capacitors at the same time, so that each stage of capacitor can obtain the same charging voltage. This process can complete the energy storage of multi-stage capacitors at a relatively low input voltage, avoiding the technical difficulties and safety risks of directly using a high-voltage power supply for single-stage charging. In the discharging stage, through the synchronous trigger signal output by the pulse trigger source module, each stage of switch (specifically a three-electrode field distortion gas spark gap switch) in the Marx generator module will be turned on synchronously. At this time, each stage of capacitor originally in parallel state is switched to series state instantaneously, and the electrical energy stored by each stage of capacitor is superimposed through series connection, so that the voltage at the output end is greatly improved, thus forming the required high-voltage pulse. This parallel charging and series discharging working mode skillfully utilizes the series and parallel characteristics of capacitors, realizes the conversion from low-voltage charging to high-voltage discharging, and is the key mechanism for the Marx generator to efficiently generate high-voltage pulses, providing a stable high-voltage pulse source for the subsequent pulse compression circuit module to process the pulse.

[0058] In some embodiments, the each stage of switch is a three-electrode field distortion gas spark gap switch.

[0059] Each switch in the Marx generator module uses a three-electrode field-distorted gas spark gap switch, a high-voltage switching device that turns on and off based on the principle of gas discharge. "Three electrodes" refers to a structure that includes three electrodes, typically two main electrodes (connected to different potential points in the circuit) and a trigger electrode (used to receive an external trigger signal). The three electrodes are placed together in a closed gap filled with a specific gas (such as nitrogen, sulfur hexafluoride, or other insulating gases), forming a gas spark gap structure. "Field distortion" is the core operating principle of this switch. Specifically, when no trigger signal is received, the electric field between the main electrodes is relatively uniform, the gas in the gap is insulated, and the switch remains open. When the trigger electrode receives an external pulse trigger signal, it distorts the electric field between the main electrodes, forming a local strong electric field in the gap, causing the gas to rapidly ionize to form a plasma channel, thereby breaking down the gap between the main electrodes and conducting, achieving the closure of the switch.

[0060] In this method, a three-electrode field-distorted gas spark gap switch is used as the switch at each level of the Marx generator, which has significant advantages: on the one hand, it can quickly respond to external trigger signals by utilizing the field distortion principle. The time from receiving the trigger signal to fully conducting is extremely short, which can achieve fast switching in the nanosecond level and meet the requirements of high-voltage pulse generation for switching speed; on the other hand, it can ensure that the switches at each level are turned on at the same time by synchronous triggering with an external pulse signal, ensuring the synchronous conversion of the capacitors at each level in the Marx generator from parallel charging to series discharge, which is crucial for the superposition and formation of stable high-voltage pulses. In addition, the gas spark gap switch has a low on-resistance when conducting, which can effectively reduce energy loss, and has a high dielectric strength in the off state, which can withstand the high voltage when the capacitors at each level are charged. It is suitable for long-term stable operation in high-voltage pulse generation devices such as Marx generators, providing a reliable switch control basis for the entire high-voltage pulse generation process.

[0061] In some embodiments, a uniform electromagnetic field region is formed between the upper and lower plates of the transmission line structure module, which is used to simulate the coupling path and field strength distribution of high-altitude electromagnetic pulses on ground equipment.

[0062] The upper and lower plates of the transmission line structure module are core components of the module, and are usually arranged in parallel and opposite to form a specific spatial structure. This structure design enables a uniform electromagnetic field region to be formed between the upper and lower plates. The uniform electromagnetic field region refers to a specific spatial range between the upper and lower plates, in which the strength and distribution state of the electromagnetic field remain relatively consistent, avoiding test errors caused by uneven field strength distribution. This feature is crucial for simulating a real high-altitude electromagnetic pulse field environment. Through the arrangement of the upper and lower plates, the transmission line structure module utilizes the transmission and distribution of steepened pulse energy between the two plates to stably form the above-mentioned uniform electromagnetic field region, providing a controllable and reliable field environment basis for subsequent simulation tests.

[0063] The main role of the uniform electromagnetic field region is to simulate the coupling path and field strength distribution of high-altitude electromagnetic pulses on ground equipment. Specifically, when high-altitude electromagnetic pulses act on ground equipment, their electromagnetic fields will electromagnetically couple with the equipment through various paths, i.e., coupling paths, such as metal components on the surface of the equipment, connected cables, various ports (such as PoE ports), etc., which can all become paths for electromagnetic energy to couple into the interior of the equipment. Field strength distribution refers to the intensity variation of the electromagnetic field of high-altitude electromagnetic pulses in the space around the ground equipment. The field strength at different positions directly affects the strength and effect of electromagnetic coupling. The uniform electromagnetic field region formed between the upper and lower plates of the transmission line structure module can reproduce the typical field strength distribution characteristics of high-altitude electromagnetic pulses in the space where the ground equipment is located, making the field strength and distribution state in this region similar to the field environment when actual high-altitude electromagnetic pulses act on the ground. At the same time, this uniform region can also accurately simulate the process of electromagnetic pulses interacting with ground equipment through the above-mentioned coupling paths, providing a real and effective test scenario for studying the electromagnetic coupling rules of power station minimum safety systems and other ground equipment under the action of high-altitude electromagnetic pulses, ensuring that the subsequent evaluation results of equipment vulnerability have high accuracy and reference value.

[0064] Corresponding to the above-mentioned electromagnetic pulse simulation method, the present application also proposes an electromagnetic pulse simulation device. Since the device embodiments of the present application correspond to the above-mentioned method embodiments, the details not disclosed in the device embodiments can be referred to the above-mentioned method embodiments, which will not be described in detail in the present application.

[0065] Figure 2 A structural schematic diagram of an electromagnetic pulse simulation device provided by an embodiment of the present disclosure is shown in FIG. 1, which includes: Figure 2

[0066] A control unit 21 is configured to trigger each stage switch in the Marx generator module synchronously by the pulse trigger source module in response to an external control signal to generate a high-voltage pulse.

[0067] ​The processing unit 22 is used to transmit the high-voltage pulse to the pulse compression circuit module through the transmission component module, and the pulse compression circuit module performs steepening processing on the high-voltage pulse to form a double exponential waveform that meets the characteristics of the high-altitude electromagnetic pulse;

[0068] The transmission unit 23 is used to convert the steepened pulse energy into a bounded wave radiation field through a transmission line structure module. The transmission line structure module includes upper and lower plates, which are used to simulate the coupling effect of high-altitude electromagnetic pulses on ground equipment;

[0069] The evaluation unit 24 is configured to inject the bounded wave radiation field into the PoE port effect experiment module to evaluate the response characteristics, damage mechanism, and system-level failure behavior of the PoE port under the action of high-altitude electromagnetic pulses.

[0070] Furthermore, in a possible implementation of the embodiment of the present disclosure, the evaluation unit 24 is further configured to:

[0071] The electrical response and functional state changes of the PoE port under the action of electromagnetic pulses are collected based on a preset collection device.

[0072] Furthermore, in a possible implementation of the embodiment of the present disclosure, the Marx generator module adopts a unilateral charging structure and outputs the high-voltage pulse by charging in parallel and discharging in series with multiple capacitors.

[0073] Furthermore, in a possible implementation of the embodiment of the present disclosure, the switches at each stage are three-electrode field distortion gas spark gap switches.

[0074] Furthermore, in a possible implementation of the embodiment of the present disclosure, a uniform electromagnetic field region is formed between the upper and lower plates of the transmission line structure module to simulate the coupling path and field strength distribution of high-altitude electromagnetic pulses on ground equipment.

[0075] It should be noted that the above explanation of the method embodiment is also applicable to the device of the embodiment of the present disclosure, and the principles are the same, which is no longer limited in the embodiment of the present disclosure.

[0076] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium, and a computer program product.

[0077] Figure 3A schematic block diagram of an example electronic device 300 that can be used to implement embodiments of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are provided as examples only and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0078] like Figure 3 As shown, the device 300 includes a computing unit 301, which can perform various appropriate actions and processes according to a computer program stored in a ROM (Read-Only Memory) 302 or a computer program loaded from a storage unit 308 into a RAM (Random Access Memory) 303. Various programs and data required for the operation of the device 300 can also be stored in the RAM 303. The computing unit 301, ROM 302, and RAM 303 are connected to each other via a bus 304. An I / O (Input / Output) interface 305 is also connected to the bus 304.

[0079] Various components in device 300 are connected to I / O interface 305, including: an input unit 306, such as a keyboard, mouse, etc.; an output unit 307, such as various types of displays, speakers, etc.; a storage unit 308, such as a magnetic disk, optical disk, etc.; and a communication unit 309, such as a network card, modem, wireless communication transceiver, etc. The communication unit 309 allows device 300 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0080] Computing unit 301 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of computing unit 301 include, but are not limited to, a CPU (Central Processing Unit), a GPU (Graphic Processing Unit), various specialized AI (Artificial Intelligence) computing chips, various computing units that run machine learning model algorithms, a DSP (Digital Signal Processor), and any suitable processor, controller, microcontroller, etc. Computing unit 301 performs the various methods and processes described above, such as the electromagnetic pulse simulation method. For example, in some embodiments, the electromagnetic pulse simulation method can be implemented as a computer software program tangibly embodied in a machine-readable medium, such as storage unit 308. In some embodiments, part or all of the computer program can be loaded and / or installed onto device 300 via ROM 302 and / or communication unit 309. When the computer program is loaded into RAM 303 and executed by computing unit 301, one or more steps of the method described above can be performed. Alternatively, in other embodiments, the computing unit 301 may be configured to execute the aforementioned electromagnetic pulse simulation method in any other appropriate manner (for example, by means of firmware).

[0081] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, FPGAs (Field Programmable Gate Arrays), ASICs (Application-Specific Integrated Circuits), ASSPs (Application-Specific Standard Products), SOCs (System on Chips), CPLDs (Complex Programmable Logic Devices), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special-purpose or general-purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0082] The program code for implementing the method of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0083] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or apparatus, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include an electrical connection based on one or more wires, a portable computer disk, a hard disk, RAM, ROM, EPROM (Electrically Programmable Read-Only-Memory) or flash memory, optical fiber, CD-ROM (Compact Disc Read-Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0084] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0085] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: LAN (Local Area Network), WAN (Wide Area Network), the Internet, and blockchain networks.

[0086] A computer system may include a client and a server. The client and server are generally remote from each other and typically interact via a communication network. This client-server relationship is established by computer programs running on the respective computers, establishing a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host, a host product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosts and VPS services ("Virtual Private Servers" or simply "VPS"). The server may also be a server in a distributed system or a server integrated with blockchain.

[0087] It's important to note that artificial intelligence (AI) is the study of how computers can simulate certain human thought processes and intelligent behaviors (such as learning, reasoning, thinking, and planning). This encompasses both hardware and software technologies. AI hardware technologies generally include sensors, specialized AI chips, cloud computing, distributed storage, and big data processing. AI software technologies primarily encompass computer vision, speech recognition, natural language processing, machine learning / deep learning, big data processing, and knowledge graphs.

[0088] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved. This is not limited herein.

[0089] The above specific embodiments do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure shall be included within the scope of protection of this disclosure.

Claims

1. A method for testing electromagnetic pulses, characterized in that: The following steps are involved: In response to an external control signal, the pulse trigger source module synchronously triggers the switches of each level in the Marx generator module to generate a high voltage pulse; The high-voltage pulse is transmitted to the pulse compression circuit module through the transmission component module, and the pulse compression circuit module performs a steepening process on the high-voltage pulse to form a double-exponential waveform that conforms to the characteristics of the high-altitude electromagnetic pulse; The steepened pulse energy is converted into a bounded wave radiation field through a transmission line structure module, wherein the transmission line structure module includes upper and lower plates for simulating the coupling effect of high-altitude electromagnetic pulses on ground equipment; The bounded wave radiation field is injected into the PoE port effect experimental module to evaluate the response characteristics, damage mechanism and system-level failure behavior of the PoE port under the action of high-altitude electromagnetic pulses.

2. The method according to claim 1, characterized in that Injecting the bounded wave radiation field into the PoE port effect experimental module to evaluate the response characteristics, damage mechanism, and system-level failure behavior of the PoE port under the action of high-altitude electromagnetic pulses includes: The electrical response and functional state changes of the PoE port under the action of electromagnetic pulses are collected based on a preset collection device.

3. The method according to claim 1, characterized in that The Marx generator module adopts a unilateral charging structure and outputs the high-voltage pulse by charging in parallel and discharging in series with multi-stage capacitors.

4. The method according to claim 1, wherein The switches at each level are three-electrode field distortion gas spark gap switches.

5. The method according to claim 1, wherein A uniform electromagnetic field region is formed between the upper and lower plates of the transmission line structure module, which is used to simulate the coupling path and field strength distribution of high-altitude electromagnetic pulses on ground equipment.

6. An electromagnetic pulse testing device, characterized in that: The following steps are involved: A control unit, configured to synchronously trigger the switches of each level in the Marx generator module via the pulse trigger source module in response to an external control signal to generate a high-voltage pulse; a processing unit, configured to transmit the high-voltage pulse to a pulse compression circuit module through a transmission component module, wherein the pulse compression circuit module performs a steepening process on the high-voltage pulse to form a double-exponential waveform that conforms to the characteristics of a high-altitude electromagnetic pulse; A transmission unit, configured to convert the steepened pulse energy into a bounded wave radiation field through a transmission line structure module, wherein the transmission line structure module includes upper and lower plates, configured to simulate the coupling effect of high-altitude electromagnetic pulses on ground equipment; An evaluation unit is used to inject the bounded wave radiation field into the PoE port effect experimental module to evaluate the response characteristics, damage mechanism and system-level failure behavior of the PoE port under the action of high-altitude electromagnetic pulses.

7. The device according to claim 6, characterized in that The evaluation unit is further configured to: The electrical response and functional state changes of the PoE port under the action of electromagnetic pulses are collected based on a preset collection device.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 5.

9. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 5.

10. A computer program product, characterized in that The invention comprises a computer program which, when executed by a processor, implements the method according to any one of claims 1 to 5.

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