Electrified evaluation platform security topology design method, system, equipment and medium

Abstract

The invention discloses a safety topology design method, system and device for a live-line evaluation platform and a medium, and belongs to the technical field of power system safety design and electrician training, and the method comprises the steps: constructing a safety topology structure of the live-line evaluation platform, which comprises a low-voltage safety topology platform and a high-voltage safety topology platform; setting a grounding mode for a low-voltage safety topology platform connecting line and a corresponding voltage regulator; for a high-voltage safety topology platform connecting line and a corresponding voltage regulator, limiting a rated voltage, and calculating the power of a single-phase resistance-inductance current limiter; and designing the transformer capacity and applying the transformer capacity to the electrified evaluation platform security topological structure. According to the invention, a safety topology platform with different voltage levels is constructed, and grounding mode setting, current limiter parameter calculation and transformer capacity design are carried out in sequence, so that the system fault current is strictly limited in a safety range while a real live working environment is simulated; finally, high safety, high reliability and system stability of the training process are realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power system safety design and electrician training, and particularly relates to a live training platform safety topology design method, system, device and medium. BACKGROUND

[0002] At present, live work training and examination sites are in a "non-live" scenario, mainly using virtual reality (VR), augmented reality (AR) and other technologies for live work training, and some places have also built live operation training scenarios.

[0003] Although the existing "non-live" training method provides a highly intelligent and scenario-based learning environment for students, significantly reducing the safety risks in actual operation, it also has some challenges, especially when students transition from a virtual environment to an actual live work scenario. The perception (such as vision, hearing, and touch) obtained by students in the virtual environment still differs from the actual environment, which may cause students to feel uncomfortable or nervous in actual operation. In a simulated environment, students may be more relaxed, but when faced with real electric current and potential danger, students may feel a great deal of psychological pressure, which may affect their performance.

[0004] The existing live training real scene platform is still immature in terms of topology, protection, electric shock current identification, platform function, safety, reliability, and other test evaluation, maintenance, etc. of the booster system, resulting in many live work real scene training platforms being unable to guarantee the safety of students and equipment in a live operation state, gradually being abandoned, and causing a large amount of resource waste. SUMMARY

[0005] In view of the above problems, the present application is proposed.

[0006] Therefore, the present application aims to solve the key technical problem of how to limit the possible ampere-level short-circuit fault current of the system to a milliamper-level absolute safe current under the premise of simulating the real power grid voltage with high simulation degree in a high-voltage live work training platform.

[0007] To solve the above technical problems, the present application provides the following technical solution: a live training platform safety topology design method, which comprises, A live training platform safety topology structure is constructed, including a low-voltage safety topology platform and a high-voltage safety topology platform; the grounding mode is set for the low-voltage safety topology platform connection line and the corresponding voltage regulator; the rated voltage is limited for the high-voltage safety topology platform connection line and the corresponding voltage regulator; the transformer capacity is designed and applied to the live training platform safety topology structure.

[0008] As a preferred scheme of the safe topology design method of the live line training and evaluation platform, the low-voltage safe topology platform comprises a first low-voltage safe topology platform and a second low-voltage safe topology platform. The first low-voltage safe topology platform is set in a neutral point grounding mode, and further adopts a resistance-inductance current limiter for current limiting. An equivalent circuit of single-phase grounding fault and phase-to-phase short-circuit fault is designed. The fault current is limited, and the impedance of the required resistance-inductance current limiter is calculated. The power margin of the current limiting resistor is set, and a single-phase resistance-inductance current limiter is calculated. The inductance is simultaneously inserted into the resistance-inductance current limiter, and the reactive power consumed by the line-to-ground capacitance is compensated.

[0009] As a preferred scheme of the safe topology design method of the live line training and evaluation platform, the low-voltage safe topology platform comprises a first low-voltage safe topology platform and a second low-voltage safe topology platform. The transformer is boosted, the training line is three-phase short-circuited, and the line voltage is boosted. The transformer and the voltage regulator capacity are calculated according to the current limiting current and the single-phase voltage. The impedance value of the resistance-inductance current limiter is calculated, and then the resistance and reactance values of the resistance-inductance current limiter are calculated.

[0010] The preferred technical scheme in the embodiment of the present application has the beneficial effects of effectively inhibiting the grounding fault current in the low-voltage system and avoiding the risk of electric shock, and combining the voltage regulator adjustment, different grounding states can be simulated in the training process, and the authenticity and safety of the training are improved.

[0011] As a preferred scheme of the safe topology design method of the live line training and evaluation platform, the low-voltage safe topology platform comprises a first low-voltage safe topology platform and a second low-voltage safe topology platform. The neutral point grounding mode is set. Further, the resistance-inductance current limiter is used for current limiting. The high rated voltage is set.

[0012] As a preferred scheme of the safe topology design method of the live line training and evaluation platform, the low-voltage safe topology platform comprises a first low-voltage safe topology platform and a second low-voltage safe topology platform. At the same time, considering the 3 times margin, the capacity of the booster transformer and the voltage regulator can be calculated according to the current limiting current and the single-phase voltage. in, The system's nominal voltage; The current limiting value is set to 50mA; S is the capacity of the three-phase step-up transformer and the three-phase voltage regulator. When a single-phase ground fault occurs, neglecting the impedance of the three-phase step-up transformer, the line impedance, and the fault resistance, the fault current during a single-phase ground fault is: The fault current should be limited to Under single-phase grounding conditions, the impedance value of the single-phase inductive current limiter should be: in, Z represents the fault current, and Z represents the impedance of the inductive current limiter.

[0013] As a preferred embodiment of the safe topology design method for a live-line safety assessment platform described in this invention, the high-voltage safety topology platform further includes, in the event of a phase-to-phase short-circuit fault, ignoring the impedance of the three-phase step-up transformer, the line impedance, and the fault resistance, the fault current is: Limit the fault current to Under phase-to-phase short-circuit conditions, the impedance value of the single-phase resistive current limiter is: The impedance value of the single-phase resistive current limiter is calculated under single-phase grounding conditions. This value is greater than the current-limiting resistance value obtained under phase-to-phase short-circuit conditions. The maximum value is taken, and the impedance value of the current limiter is set as follows: Increase the impedance of the inductive current limiter to 110%~130% of the base value, that is: The power of the current-limiting resistor is considered with a three-fold margin, meaning the power of the single-phase resistive-inductive current limiter is calculated based on the current-limiting current: Where S is the power of the single-phase resistive current limiter.

[0014] The beneficial effects of the preferred technical solution in the embodiments of the present invention are as follows: it accurately controls the fault current in the high-voltage system to prevent dangers such as electric arc and electric shock; through the design of combining resistance and inductance, it limits the current and compensates for capacitive reactive power, avoids line voltage drop, and maintains system stability; and it adopts a three-fold margin design to improve equipment durability and system reliability.

[0015] As a preferred embodiment of the safe topology design method for a live-line training and evaluation platform described in this invention, the design of the transformer capacity includes: designing the capacity of a three-phase step-up transformer 2, determining the length of the training line according to requirements, and estimating the system capacitance current. Estimate the apparent power required by the system under normal operating conditions, single-phase ground fault conditions, and phase-to-phase short-circuit fault conditions respectively; Based on the maximum apparent power, and considering a capacity margin of 3 to 5 times, select the capacity of the three-phase step-up transformer.

[0016] The beneficial effects of the preferred technical solutions in the embodiments of the present invention are as follows: ensuring that the transformer is not overloaded under extreme operating conditions (such as short circuit), thus extending the equipment life; improving the overall energy utilization efficiency of the system, avoiding voltage instability or equipment damage caused by insufficient capacity; and achieving efficient and safe operation of the system in training and fault simulation through the coordinated design of structural and electrical parameters.

[0017] Another objective of this invention is to provide a safe topology design system for a charged training and evaluation platform.

[0018] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a safety topology design system for a live-line training and evaluation platform, comprising: A safety topology system for a live-line training and assessment platform is constructed, including a low-voltage safety topology platform and a high-voltage safety topology platform. For the low-voltage safety topology platform, the grounding method is set for the connection lines and corresponding voltage regulators of the low-voltage safety topology platform. The high-voltage safety topology platform limits the rated voltage of its connection lines and corresponding voltage regulators. Transformer capacity unit: Design transformer capacity and apply it to the safety topology of the live training and evaluation platform.

[0019] The present invention provides a computer device, including a memory and a processor, wherein the memory stores a computer program, characterized in that the processor executes the computer program to implement the steps of the above-described method for safe topology design of a live-line training and evaluation platform.

[0020] The present invention provides a computer-readable storage medium having a computer program stored thereon, characterized in that, when the computer program is executed by a processor, it implements the steps of the above-described method for safe topology design of a live-line training and evaluation platform.

[0021] The beneficial effects of this invention are as follows: By constructing a structure including low-voltage and high-voltage safety topology platforms, this invention provides a modular foundation for training at different voltage levels. Furthermore, by setting the grounding method for the low-voltage platform, the grounding fault current path is effectively controlled, improving the simulation realism and basic operational safety. By limiting the rated voltage of the high-voltage platform and accurately calculating the parameters of the inductive current limiter, the current is strictly limited to a safe value (e.g., 50mA) during a fault, while its inductive reactance compensates for the line-to-ground capacitive reactance, preventing excessive voltage drops and ensuring system stability. Finally, by designing and applying transformers with sufficient margin, the reliability of critical equipment under extreme conditions such as short circuits is ensured. Through the synergy of the above steps, the entire method ultimately achieves a live-line training platform that, while simulating a real working environment, fundamentally ensures the safety of personnel and equipment, and improves the overall reliability and lifespan of the system. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a flowchart illustrating a safety topology design method for a live-line training and evaluation platform, as provided in one embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the safety topology design structure of a 10kV~35kV first low voltage safety topology platform, which is provided as an embodiment of the present invention for a safety topology design method of a live training and evaluation platform.

[0025] Figure 3 An equivalent circuit is provided for a safe topology design method for a charged training and evaluation platform according to an embodiment of the present invention.

[0026] Figure 4 The equivalent circuit two is provided for a safe topology design method for a charged training and evaluation platform according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the safety topology design structure of a 10kV~35kV second low voltage safety topology platform, which is provided as an embodiment of the present invention for a safety topology design method of a live training and evaluation platform.

[0028] Figure 6 This is a schematic diagram of the safety topology design structure of a 110kV~500kV first high voltage safety topology platform, which is provided as an embodiment of the present invention for a safety topology design method of a live-line training and evaluation platform.

[0029] Figure 7 This is a schematic diagram of the safety topology design structure of a 110kV~500kV second high voltage safety topology platform, which is provided as an embodiment of the present invention for a safety topology design method of a live-line training and evaluation platform. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0031] Example 1, referring to Figures 1-7 This is one embodiment of the present invention, which provides a method for safe topology design of a live-line training and evaluation platform, comprising: S100. Construct a safe topology for the live-line training and assessment platform, including a low-voltage safety topology platform and a high-voltage safety topology platform; S200, Set the grounding method for the low-voltage safety topology platform connection lines and corresponding voltage regulators; S300, for high-voltage safety topology platform connection lines and corresponding voltage regulators, the rated voltage is limited; S400, design transformer capacity and apply it to the safety topology of the live training and evaluation platform.

[0032] It should be noted that the research on existing live-line training simulation platforms in terms of the topology, protection, electric shock current identification, platform functions, safety, reliability, testing and evaluation, and maintenance of the boost system is still immature. As a result, many live-line operation simulation training platforms cannot guarantee the personal safety of trainees and the safety of equipment under live-line operation conditions, and are gradually being abandoned, resulting in a large waste of resources.

[0033] Therefore, to address the aforementioned issues, the S100-S400 steps, through the separation and differentiated design of high and low voltage platforms, achieve precise safety control for training tasks at different voltage levels; through impedance calculation and power design of the inductive current limiter, the fault current is strictly limited to a safe range; through inductive compensation of line capacitive reactance, voltage drops are avoided, and system voltage stability is maintained; through triple margin design and transformer capacity optimization, the withstand capability of key equipment under fault conditions is improved; and through grounding methods and voltage regulator coordination, the safety of personnel and equipment is ensured while simulating the real working environment.

[0034] Example 2, refer to Figures 1-7This is one embodiment of the present invention, which provides a method for safe topology design of a live-line training and evaluation platform, comprising: In this embodiment of the invention, S100 constructs a safety topology structure for the live-line safety assessment platform, including a low-voltage safety topology platform and a high-voltage safety topology platform, and includes the following steps S101-S102: In this embodiment of the invention, setting the grounding method for the low-voltage safety topology platform connection lines and corresponding voltage regulators in step S200 includes the following steps S201-S202: S201, Design the first low-voltage safety topology platform; like Figure 2 As shown, the first low-voltage safety topology platform of 10kV~35kV includes a three-phase power supply 1, a three-phase step-up transformer 2, a resistive current limiter 3, and a training line 4 connected in sequence. The neutral point grounding method is ungrounded, and the resistive current limiter 3 is further used for current limiting. The rated voltage of the system is 10kV~35kV. For the three-phase step-up transformer 2, it is recommended to use a Dy1 type step-up transformer or a Dy11 type step-up transformer. Since the training line has no load, the capacity of the step-up transformer can only consider the charging current under normal operating conditions and the fault current under fault conditions.

[0035] When a single-phase ground fault occurs in any phase of the system, the equivalent circuit of this design is as follows: Figure 3 As shown, power supply 1 is the system power supply, and its amplitude is the system single-phase-to-ground voltage. Z is the single-phase grounding transition resistor (5), Z is the impedance of the inductive current limiting module, and C is the three-phase grounding capacitance with capacitive reactance of [value missing]. .

[0036] When a phase-to-phase short-circuit fault occurs in the system, the equivalent circuit of this design is as follows: Figure 4 As shown, power supply 1 is the system power supply. The amplitude is the system nominal voltage (line voltage). 6 is the phase-to-phase short-circuit transition resistor, and Z is the impedance of the inductive current limiting module.

[0037] In an embodiment of the present invention, limiting the fault current and calculating the required impedance of the resistive-inductive current limiter includes the following steps A1-A2: For the A1-10kV~35kV first low-voltage safety topology platform, if the single-phase grounding transition resistance is ignored, i.e., the grounding resistance is zero, the fault current must be limited to current. The required impedance of the inductive current limiter is: When a phase-to-phase short-circuit fault occurs in the system, the equivalent circuit of the present invention is as follows: Figure 4 As shown, power supply 1 is the system power supply. The amplitude is the system nominal voltage (line voltage). 6 is the phase-to-phase short-circuit transition resistor, and Z is the impedance of the inductive current limiting module.

[0038] A2. If the phase-to-phase short-circuit transition resistance is ignored, i.e., the transition resistance is zero, the fault current must be limited to the current. The required impedance of the inductive current limiter is: In an optional embodiment, the required impedance of the resistive-inductive current limiter is calculated based on the target safe fault current value. Based on the system's rated voltage level (10kV or 35kV), and referring to industry standards or previous safety design experience, a fixed reactor impedance value is directly selected, and this selected standard impedance device (resistive-inductive current limiter) is connected to the topology. Figure 2 The position of the current limiter 3 shown is too dependent on empirical data.

[0039] In another optional embodiment, the required impedance of the resistive-inductive current limiter is calculated in advance through theoretical calculations or simulations to establish a "fault current-required impedance" lookup table corresponding to different system voltage levels and ground capacitance ranges. This table takes the system ground capacitance reactance and the target fault current as inputs and outputs the recommended impedance value of the resistive-inductive current limiter to be configured. During actual deployment, the three-phase ground capacitance reactance of training line 4 is first measured or estimated. Then, based on the platform design target current By directly consulting the table, you can obtain the required impedance value Z of the resistive inductor current limiter. Based on the obtained impedance value Z, select or customize a standard resistive inductor current limiter with an impedance value close to that value, and connect it to the circuit. Figure 2 The position of the medium resistance current limiter 3; however, it only applies to the parameter combinations covered in the table.

[0040] The power of the current-limiting resistor should have a three-fold margin, meaning the power of the single-phase resistive-inductive current limiter should be calculated based on the current-limiting current: The purpose of inserting an inductor is to compensate for the reactive power consumed by the line-to-ground capacitance, preventing excessive voltage drop and ensuring the line voltage does not reach the design voltage. Based on this, the following equation can be derived: Where R is the resistance part of the resistive-inductive current limiter. For the inductive reactance part of the impedance current limiter, Z is the single-phase-to-ground capacitance of the line, and Z is the impedance magnitude of the inductive current limiter. This represents the effective value of the system phase voltage; Squaring the first equation above, we get: The second equation simplifies to: Divide both sides by Taking the reciprocal, we get: After squaring, we get: Simplified to: Solving the variation of the first equation, we get: Solving for: Will Substituting into the first equation, we get: Solving for: therefore: when It has real solutions, and the final solution is: Therefore, when the line capacitance and the impedance required for current limiting do not meet the requirements... When this is the case, it is necessary to increase the line capacitance, that is, to reduce the line length, so that the above equation has a real solution.

[0041] S202, Second Low Voltage Safety Topology Platform; like Figure 5 As shown, the second low-voltage safety topology platform with a voltage range of 10kV to 35kV includes a single-phase power supply 1, a single-phase voltage regulator 2, a single-phase step-up transformer 3, a resistive-inductive current limiter 4, and a training circuit 5 connected in sequence. The neutral point is ungrounded, and the resistive-inductive current limiter 3 is used for current limiting. The rated voltage of the system is 10kV to 35kV.

[0042] This invention uses a single-phase step-up transformer 3 to step up the voltage, short-circuit the three phases of the training line 5, and adjust the single-phase voltage regulator 2 to raise the line voltage to the phase voltage.

[0043] At this time, since the potential difference between adjacent locations on the line is zero, there is no phase-to-phase short circuit fault, only a single-phase ground fault.

[0044] In embodiments of the present invention, calculating the capacity of the transformer and voltage regulator based on the current-limiting current and single-phase voltage includes the following steps B1-B2: B1, the second low-voltage safety topology platform of 10kV~35kV, the connection group of the single-phase step-up transformer 3 is Ii0, and its output power reaches the maximum value when a short-circuit fault occurs; B2. Considering a 3x margin, the capacities of the single-phase step-up transformer 3 and the single-phase voltage regulator 2 can be calculated based on the current limiting current and the single-phase voltage: in, For system phase voltage, S is the current limiting current; S is the capacity of the single-phase step-up transformer 3 and the single-phase voltage regulator 2.

[0045] In an optional embodiment, the transformer and voltage regulator capacity is calculated by directly determining a fixed equipment capacity based on the highest voltage level of the platform design and a preset, empirical maximum safe current-limiting current value. For example, it is uniformly stipulated that the capacity of the single-phase step-up transformer and single-phase voltage regulator is selected as 100kVA; however, this would result in wasted equipment capacity at lower voltage levels or when the actual required current-limiting current is smaller. In another alternative embodiment, the transformer and voltage regulator capacity is calculated based on the original calculation formula S=3× × A fixed empirical coefficient is introduced to replace the original 3x margin. That is, the capacity calculation formula becomes S = 3 × k × × , where k is a pre-set empirical coefficient, thus directly obtaining a capacity value that is smaller than the precise calculated value but retains a certain margin; however, the choice of margin at this time depends on subjective experience, and the margin may be insufficient or excessive due to improper selection of coefficient.

[0046] Furthermore, neglecting the line-to-ground distributed capacitance, the impedance value of the inductive current limiter should be: The resistance and reactance values ​​of the resistive-inductive current limiter are calculated using the aforementioned formula. It should be noted that, due to the three-phase circuit being short-circuited, at this time... The parallel value of the three-phase ground capacitive reactance should be taken.

[0047] In this embodiment of the invention, S300 limits the rated voltage of the high-voltage safety topology platform connection lines and corresponding voltage regulators, including the following steps S301-S302: S301, the high-voltage safety topology platform includes a first high-voltage safety topology platform and a second high-voltage safety topology platform; like Figure 6 As shown, the first high-voltage safety topology platform for 110kV~500kV includes the following steps C1-C9: C1. The three-phase power supply 1, three-phase voltage regulator 2, three-phase step-up transformer 3, and resistance-inductance current limiter 4, and training circuit 5 are connected in sequence. The neutral point grounding method is direct grounding. The resistance-inductance current limiter 3 is used for current limiting. The rated voltage of the system is 110kV~500kV.

[0048] C2. For the first high-voltage safety topology platform of 110kV~500kV, the connection group of the three-phase step-up transformer is Dyn11. Its high-voltage side neutral point is directly grounded. Its output power reaches its maximum value when a phase-to-phase short circuit fault or a short circuit fault occurs, i.e., the current-limiting current.

[0049] C3. Considering a 3x margin, the capacities of the step-up transformer and voltage regulator can be calculated based on the current limiting current and single-phase voltage: in, The system's nominal voltage; The current limiting value is set to 50mA; S is the capacity of the three-phase step-up transformer and the three-phase voltage regulator. C4. Since the system neutral point is directly grounded, the fault current during a single-phase ground fault is provided by the power supply of the faulty phase (single-phase ground electromotive force). Ignoring the impedance of the three-phase step-up transformer, the line impedance, and the fault resistance, the fault current during a single-phase ground fault is: C5. The fault current must be limited to Under single-phase grounding conditions, the impedance value of the single-phase inductive current limiter should be: in, Z represents the fault current, and Z represents the impedance of the inductive current limiter.

[0050] C6. When a phase-to-phase short-circuit fault occurs, neglecting the impedance of the three-phase step-up transformer, the line impedance, and the fault resistance, the fault current is: Limit the fault current to Under phase-to-phase short-circuit conditions, the impedance value of the single-phase resistive current limiter is: C7. Calculate the impedance value of the single-phase resistive current limiter under single-phase grounding conditions. The value greater than the current-limiting resistance value obtained under phase-to-phase short-circuit conditions should be taken as the impedance value of the current limiter. C8. To ensure the current limiting effect, the impedance value of the resistive-inductive current limiter should be increased to 110%~130% of the reference value, that is: C9. The power of the current-limiting resistor is considered with a three-fold margin, that is, the power of the single-phase resistive-inductive current limiter is calculated based on the current-limiting current: Where S is the power of the single-phase resistive current limiter.

[0051] In an optional embodiment, the power of the single-phase resistive inductor current limiter is calculated by determining the resistance value R after calculating the impedance value of the resistive inductor current limiter. When calculating the power of the single-phase resistive inductor current limiter, a margin of 2 is considered, i.e., the power formula is P = 2 × ×RP=2× ×R, where I lim R is the current limiting current, and R is the resistance part of the resistive current limiter. This power value is used to select or design the resistive element of the resistive current limiter; however, it is only applicable when the margin is small.

[0052] In another optional embodiment, the power of the single-phase resistive inductor current limiter is calculated after the impedance value of the resistive inductor current limiter is calculated and the resistance value R is determined. Assuming the fault duration is short, the power is calculated based on the short-term heat capacity, considering a margin of 1, but using the equivalent thermal current for calculation. The formula is P = ×R× P= ×R× ,in As a time factor, this power value is used for selecting or designing the resistive element of an inductive current limiter, but it is only applicable to short-term fault scenarios.

[0053] S302, such as Figure 7 As shown, the second high-voltage safety topology platform of 110kV~500kV includes a three-phase power supply 1, a three-phase voltage regulator 2, a three-phase step-up transformer 3, a resistive current limiter 4, and a training line 5 connected in sequence. The neutral point grounding method is direct grounding. The resistive current limiter 3 is used for current limiting. The rated voltage of the system is 110kV~500kV.

[0054] In this embodiment of the invention, designing the transformer capacity in S400 and applying it to the safety topology of the live-line training and assessment platform includes the following steps S401-S402: S401. Design a three-phase step-up transformer with a capacity of 2. Determine the length of the training circuit according to the requirements and estimate the system capacitor current. S402. Estimate the apparent power required by the system under normal operating conditions, single-phase ground fault conditions, and phase-to-phase short-circuit fault conditions respectively. S403. Based on the maximum apparent power, and considering a capacity margin of 3 to 5 times, select the capacity of the three-phase step-up transformer.

[0055] In one optional embodiment, the S400 design transformer capacity is determined directly based on the voltage level, without detailed estimation of line length and capacitor current. For 10kV~35kV platforms, a 100kVA three-phase step-up transformer is uniformly selected; for 110kV~500kV platforms, a 500kVA three-phase step-up transformer is uniformly selected. Apparent power calculation under fault conditions is not considered; only the system nominal voltage and preset current limiting current are used as the basis, with a capacity margin of 2 times reserved according to experience, and the transformer is installed directly according to the standard capacity transformer. However, the capacity does not match the actual system, resulting in insufficient capacity.

[0056] In another optional embodiment, the S400 is designed to divide the training lines into three levels: short, medium, and long, each corresponding to different ground capacitance current ranges. A transformer capacity level is preset for each level of the line, such as 50kVA for short lines, 100kVA for medium lines, and 200kVA for long lines. The transformer capacity is selected only according to the line length level, and a 2.5 times margin is uniformly reserved. During actual installation, the transformer with the preset capacity is directly matched according to the line length. However, this cannot accurately adapt to different line parameters, resulting in insufficient capacity or over-configuration.

[0057] In summary, this invention, through a safety-oriented topology design of the live-line working simulation platform, ensures that safety measures such as electrical system isolation and grounding are effectively implemented when trainees are simulating a live-line working environment, thereby preventing accidents caused by electrical faults. A reasonable topology design avoids direct contact between operators and high-voltage areas, reducing the risk of electric shock and ensuring operator safety. The safety-oriented topology design comprehensively considers all components of the system, optimizing the system structure to ensure coordinated operation between components and improve the overall stability of the platform. The safety-oriented topology design ensures that every step of the training process complies with safety regulations, reducing training interruptions and delays caused by safety issues and improving training efficiency. The simulation platform technology can simulate a real live-line working environment, allowing operators to conduct training and drills in a safe, actual live-line environment, reducing safety risks in actual operations. Research on simulation platform technology can promote innovation and development in live-line working technology, solve bottlenecks in existing technologies, and improve the efficiency and safety of live-line work.

[0058] Example 3, the third embodiment of the present invention, provides a safe topology design method for a charged training and evaluation platform. To verify the beneficial effects of the present invention, scientific demonstration is carried out through experiments.

[0059] ①For the first low-voltage safety topology platform: Experiment 1: The training line is designed as a 1km overhead line. The 10kV system has a capacitive current of approximately 0.03A, a single-phase-to-ground leakage current of approximately 0.01A, and a single-phase-to-ground capacitive reactance of approximately 577kΩ. The system requires an apparent power of approximately 173VA. Under a single-phase-to-ground fault condition, the required apparent power increases to approximately three times the normal operating power, reaching approximately 600VA. Under a phase-to-phase short-circuit fault condition, the fault phase current is limited to below 50mA; therefore, the required apparent power is 50mA * 10kV * 1.732 = 866VA. Considering a three-fold capacity margin, under this topology, the capacity of the three-phase step-up transformer 2 should be no less than 2.6kVA.

[0060] Simulation analysis was conducted on a 10kV safety topology, using a 0.4kV three-phase voltage source and a 2.6kVA three-phase step-up transformer. The high-voltage side adopted an ungrounded neutral point. The training line used LGJ-70 / 10 conductors, and according to the "Design Code for 66kV and Below Overhead Power Lines (GB 50061)," the line height was set at 6m, conductor spacing at 1m, and the line length at 1km, divided into two equal sections. A single-phase ground fault or phase-to-phase short-circuit fault was simulated at the line center (500m) at 0.2s (fault resistance was set to a minimum of 500Ω, referencing human body impedance). The voltage rise and fault current were observed. System voltage was monitored at the beginning, middle, and end of the training line. During a single-phase ground fault, the effective value of the fault current was 44mA, less than the limit current of 50mA, meeting the design requirements. When a phase-to-phase short-circuit fault occurs in the system, the effective value of the fault current is 49.8mA, which is less than the limiting current of 50mA, thus meeting the design requirements.

[0061] The effect is that when a single-phase ground fault or a phase-to-phase short-circuit fault occurs, the fault resistance is much smaller than the current-limiting resistor. Therefore, the current-limiting resistor can be approximately considered to bear the full fault voltage. In the event of a single-phase ground fault, the maximum current that the current-limiting resistor can withstand is the system capacitance current.

[0062] Experiment 2: The training line is designed as a 1km overhead line. The 35kV system has a capacitive current of approximately 0.1A and a single-phase-to-ground leakage current of approximately 0.03A. The system requires an apparent power of approximately 2kVA. Under a single-phase-to-ground fault condition, the required apparent power increases to approximately three times the normal operating power, reaching approximately 6kVA. Under a phase-to-phase short-circuit fault condition, the fault phase current is limited to below 50mA; therefore, the required apparent power is 50mA * 35kV * 1.732 = 3kVA. Considering a three-fold capacity margin, under this topology, the capacity of the three-phase step-up transformer 2 should be no less than 9kVA.

[0063] Simulation analysis was conducted on a 35kV safety topology, using a 0.4kV three-phase voltage source and a 9kVA three-phase step-up transformer. The high-voltage side adopted an ungrounded neutral point. The training line used LGJ-70 / 10 conductors, and according to the "Design Code for 66kV and Below Overhead Power Lines (GB 50061)," the line height was set at 6.5m, conductor spacing at 2m, and the line length at 1km, divided into two equal sections. A single-phase ground fault or phase-to-phase short-circuit fault was simulated at the center of the line (500m) at 0.2s (the fault resistance was set to a minimum of 500Ω, referencing human body impedance), and the voltage rise and fault current were observed. System voltage was monitored at the beginning, middle, and end of the training line. During a single-phase ground fault, the effective value of the fault current was 46mA, less than the limit current of 50mA, meeting the design requirements. When a phase-to-phase short-circuit fault occurs in the system, the effective value of the fault current is 49.9mA, which is less than the limiting current of 50mA, thus meeting the design requirements.

[0064] The effect is that when a single-phase ground fault or a phase-to-phase short-circuit fault occurs, the fault resistance is much smaller than the current-limiting resistor. Therefore, the current-limiting resistor can be approximately considered to bear the full fault voltage. In the event of a single-phase ground fault, the maximum current that the current-limiting resistor can withstand is the system capacitance current.

[0065] ②For the second low-voltage safety topology platform: Experiment 1: Simulation analysis of a 10kV safety topology was conducted, using a single-phase voltage source of 0.4kV and calculating the single-phase step-up transformer capacity to be 0.86kVA (here set to 1kVA). The high-voltage side adopted a neutral-point ungrounded configuration. The training line conductor was designed as LGJ-70 / 10, and according to the "Design Code for 66kV and Below Overhead Power Lines (GB 50061)," the line height was set to 6m, conductor spacing to 1m, and the line length to 1km, divided into two equal sections. A single-phase ground fault was set at the center of the line (500m) at 0.2s (the fault resistance was set to a minimum of 500Ω, referencing human body impedance), and the voltage rise and fault current were observed. The system voltage was monitored at the beginning, middle, and end of the training line. During a system ground fault, the steady-state effective value of the post-fault current was 45mA, less than the limit current of 50mA, meeting the design requirements.

[0066] The effect is that when a single-phase ground fault occurs, the steady-state effective value of the current after the fault is less than the maximum current that the current-limiting resistor can withstand.

[0067] Experiment 2: Simulation analysis of a 35kV safety topology is conducted, using a single-phase voltage source of 0.4kV. The calculated single-phase step-up transformer capacity is 3kVA, which is set here. The high-voltage side adopts a neutral point ungrounded method. The training line conductor is designed using LGJ-70 / 10. According to the "Design Code for 66kV and Below Overhead Power Lines (GB 50061)," the line height is set at 6.5m, the conductor spacing at 2m, and the line length at 0.5km, divided into two equal sections. When the training line length is 1km or more, the calculated impedance value of the inductive current limiter is greater than twice the line capacitive reactance, making it impossible to calculate the resistance value of the inductive current limiter. Therefore, the line length should be reduced. Calculations show that the line length should not exceed 830m, and a line length of 500m is selected here. A single-phase ground fault is set at the center of the line (i.e., at 250m) at 0.2s (the fault resistance is set to the minimum value of 500Ω, referencing human body impedance), and the line voltage rise and fault current are observed. The system voltage was monitored at the beginning, middle, and end of the training line. During a system ground fault, the steady-state effective value of the post-fault current was 49mA, which is less than the limit current of 50mA, meeting the design requirements.

[0068] The effect is that when a single-phase ground fault occurs, the steady-state effective value of the current after the fault is less than the maximum current that the current-limiting resistor can withstand.

[0069] ③ For the first high-voltage safety topology platform: Experiment 1: A 0.4kV three-phase voltage source and a 60kVA three-phase step-up transformer were used, with the high-voltage side directly grounded. The training line used LGJ-150 / 25 conductors. According to the "Design Code for 110kV~750kV Overhead Transmission Lines (GB 50545-2010)" and related supplementary regulations, the line height was set at 7.5m, conductor spacing at 3.5m, and the line length at 1km, divided into two equal sections. A single-phase ground fault or phase-to-phase short-circuit fault was set at the center of the line (500m) at 0.2s (the fault resistance was set to a minimum of 500Ω, referencing human body impedance), and the voltage rise and fault current were observed. The system voltage was monitored at the beginning, middle, and end of the training line. During a single-phase ground fault, the effective value of the fault current was 47mA after the fault occurred, less than the limit current of 50mA, meeting the design requirements. During a phase-to-phase short-circuit fault in the system, the effective value of the fault current is 48mA after the fault occurs, which is less than the limiting current of 50mA, meeting the design requirements. Before the fault, the output current of the step-up transformer was 106mA, and after the fault, the maximum single-phase output current of the step-up transformer was also 106mA. Based on this, the required capacity of the step-up transformer is calculated to be no more than 20kVA. The step-up transformer designed in this scheme has a capacity of 60kVA, which fully meets the power requirements of the system under normal operation and single-phase ground fault conditions.

[0070] Experiment 2: The simulation model of the 220kV step-up system has the same topology as the 110kV system. A three-phase voltage source of 0.4kV and a three-phase step-up transformer capacity of 190kVA are used. The high-voltage side uses a directly grounded neutral point. The training line conductors are designed using LGJ-300 / 40. According to the "Design Code for 110kV~750kV Overhead Transmission Lines (GB 50545-2010)" and related supplementary regulations, the line height is set at 8m, the conductor spacing at 4m, and the line length at 0.5km, divided into two equal sections. When the training line length is 1km or more, the calculated impedance value of the inductive current limiter is greater than twice the line capacitive reactance, making it impossible to calculate the resistance value of the inductive current limiter. Therefore, the line length should be reduced. Calculations show that when using 110% of the current limiter impedance benchmark value, the line length should not exceed 600m. Here, it is set to 500m. A single-phase ground fault or phase-to-phase short-circuit fault is set at the center of the line (250m) at 0.2s (fault resistance is set to a minimum of 500Ω, referencing human body impedance), and the voltage rise and fault current are observed. System voltage is monitored at the beginning, middle, and end of the training line. During a single-phase ground fault, the effective value of the fault current is 36mA, less than the limit current of 50mA, meeting the design requirements. During a phase-to-phase short-circuit fault, the effective value of the fault current is also 36mA, less than the limit current of 50mA, meeting the design requirements. Before the fault, the step-up transformer output current is 212mA, and after the fault, the maximum single-phase output current is also 212mA. Based on this, the required capacity of the step-up transformer is calculated to be no more than 183kVA. The step-up transformer designed in this scheme has a capacity of 190kVA, which fully meets the power requirements of the system under normal operation and single-phase ground fault conditions.

[0071] Experiment 3: The simulation model of the 500kV step-up system has the same topology as the 220kV system. A three-phase voltage source of 0.4kV and a three-phase step-up transformer capacity of 433kVA are used. The high-voltage side uses a directly grounded neutral point. The training line conductors are designed using JL / G1A-400 / 35. According to the "Design Code for 110kV~750kV Overhead Transmission Lines (GB 50545-2010)" and related supplementary regulations, the line height is set at 10.5m, the conductor spacing at 8m, and the line length at 0.2km, divided into two equal sections. When the training line length is 1km or more, the calculated impedance value of the inductive current limiter is greater than twice the line capacitive reactance, making it impossible to calculate the resistance value of the inductive current limiter. Therefore, the line length should be reduced. Calculations show that when using 110% of the current limiter impedance benchmark value, the line length should not exceed 220m. Here, it is set to 220m. Set a single-phase ground fault or a phase-to-phase short-circuit fault at the center of the line (110m) at 0.2s (fault resistance is set to a minimum of 500Ω, referencing human body impedance), and observe the line voltage rise and fault current. Monitor the system voltage at the beginning, middle, and end of the training line. During a single-phase ground fault, the effective value of the fault current is 34mA, less than the limit current of 50mA, meeting the design requirements. During a phase-to-phase short-circuit fault, the effective value of the fault current is 45mA, less than the limit current of 50mA, also meeting the design requirements.

[0072] ④ Regarding the second high-voltage safety topology platform: Experiment 1: A 0.4kV single-phase voltage source and a 60kVA single-phase step-up transformer were used, with the high-voltage side directly grounded. The training line used LGJ-150 / 25 conductors. According to the "Design Code for 110kV~750kV Overhead Transmission Lines (GB 50545-2010)" and related supplementary regulations, the line height was set at 7.5m, conductor spacing at 3.5m, and the line length at 1km, divided into two equal sections. A single-phase ground fault or phase-to-phase short-circuit fault was set at the center of the line (500m) at 0.2s (the fault resistance was set to a minimum of 500Ω, referencing human body impedance), and the voltage rise and fault current were observed. The system voltage was monitored at the beginning, middle, and end of the training line. During a single-phase ground fault, the effective value of the fault current was 47mA, less than the limit current of 50mA, meeting the design requirements. During a phase-to-phase short-circuit fault in the system, the effective value of the fault current is 48mA after the fault occurs, which is less than the limiting current of 50mA, meeting the design requirements. Before the fault, the output current of the step-up transformer was 106mA, and after the fault, the maximum single-phase output current of the step-up transformer was also 106mA. Based on this, the required capacity of the step-up transformer is calculated to be no more than 20kVA. The step-up transformer designed in this scheme has a capacity of 60kVA, which fully meets the power requirements of the system under normal operation and single-phase ground fault conditions.

[0073] Experiment 2: The simulation model of the 220kV step-up system has the same topology as the 110kV system. A single-phase voltage source of 0.4kV and a single-phase step-up transformer capacity of 190kVA are used. The high-voltage side uses a directly grounded neutral point. The training line conductors are designed using LGJ-300 / 40. According to the "Design Code for 110kV~750kV Overhead Transmission Lines (GB 50545-2010)" and related supplementary regulations, the line height is set at 8m, the conductor spacing at 4m, and the line length at 0.5km, divided into two equal sections. When the training line length is 1km or more, the calculated impedance value of the inductive current limiter is greater than twice the line capacitive reactance, making it impossible to calculate the resistance value of the inductive current limiter. Therefore, the line length should be reduced. Calculations show that when using 110% of the current limiter impedance benchmark value, the line length should not exceed 600m. Here, it is set to 500m. A single-phase ground fault or phase-to-phase short-circuit fault is set at the center of the line (250m) at 0.2s (fault resistance is set to a minimum of 500Ω, referencing human body impedance), and the voltage rise and fault current are observed. System voltage is monitored at the beginning, middle, and end of the training line. During a single-phase ground fault, the effective value of the fault current is 36mA, less than the limit current of 50mA, meeting the design requirements. During a phase-to-phase short-circuit fault, the effective value of the fault current is also 36mA, less than the limit current of 50mA, meeting the design requirements. Before the fault, the step-up transformer output current is 212mA, and after the fault, the maximum single-phase output current is also 212mA. Based on this, the required capacity of the step-up transformer is calculated to be no more than 183kVA. The step-up transformer designed in this scheme has a capacity of 190kVA, which fully meets the power requirements of the system under normal operation and single-phase ground fault conditions.

[0074] Experiment 3: The simulation model of the 500kV step-up system has the same topology as the 220kV system. A single-phase voltage source of 0.4kV and a single-phase step-up transformer capacity of 433kVA are used. The high-voltage side uses a directly grounded neutral point. The training line conductor is designed using JL / G1A-400 / 35. According to the "Design Code for 110kV~750kV Overhead Transmission Lines (GB 50545-2010)" and related supplementary regulations, the line height is set at 10.5m, the conductor spacing at 8m, and the line length at 0.2km, divided into two equal sections. When the training line length is 1km or more, the calculated impedance value of the inductive current limiter is greater than twice the line capacitive reactance, making it impossible to calculate the resistance value of the inductive current limiter. Therefore, the line length should be reduced. Calculations show that when using 110% of the current limiter impedance benchmark value, the line length should not exceed 220m. Here, it is set to 220m. Set a single-phase ground fault or a phase-to-phase short-circuit fault at the center of the line (110m) at 0.2s (fault resistance is set to a minimum of 500Ω, referencing human body impedance), and observe the line voltage rise and fault current. Monitor the system voltage at the beginning, middle, and end of the training line. During a single-phase ground fault, the effective value of the fault current is 34mA, less than the limit current of 50mA, meeting the design requirements. During a phase-to-phase short-circuit fault, the effective value of the fault current is 45mA, less than the limit current of 50mA, also meeting the design requirements.

[0075] Example 4, refer to Figure 2 , Figures 5-7 This is an embodiment of the present invention, and the above is an illustrative scheme of a safe topology design method for a live-line training and evaluation platform. It should be noted that the technical solution of a safe topology design system for a live-line training and evaluation platform and the technical solution of the above-described safe topology design method for a live-line training and evaluation platform belong to the same concept. Details not described in detail in the technical solution of the safe topology design system for a live-line training and evaluation platform in this embodiment can be found in the description of the technical solution of the above-described safe topology design method for a live-line training and evaluation platform.

[0076] This embodiment provides a safety topology design system for a live-line training and evaluation platform, including: A safety topology system for a live-line training and assessment platform is constructed, including a low-voltage safety topology platform and a high-voltage safety topology platform. For the low-voltage safety topology platform, the grounding method is set for the connection lines and corresponding voltage regulators of the low-voltage safety topology platform. The high-voltage safety topology platform limits the rated voltage of its connection lines and corresponding voltage regulators. Transformer capacity unit: Design transformer capacity and apply it to the safety topology of the live training and evaluation platform.

[0077] This embodiment also provides an electronic device applicable to a method for safe topology design of a live-line training and evaluation platform, comprising: a memory and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to implement the method for safe topology design of a live-line training and evaluation platform as proposed in the above embodiment.

[0078] This embodiment also provides a storage medium storing a computer program that, when executed by a processor, implements a safe topology design method for a live-line training and evaluation platform as proposed in the above embodiments.

[0079] The storage medium proposed in this embodiment belongs to the same inventive concept as the method for implementing a safe topology design for a charged training and evaluation platform proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in the above embodiments, and this embodiment has the same beneficial effects as the above embodiments.

[0080] Based on the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0081] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for designing a secure topology for a live production evaluation platform, the method comprising: Comprising, ​ Constructing the live training platform safety topology, including low-voltage safety topology platform and high-voltage safety topology platform; For the low-voltage safety topology platform connection line and the corresponding voltage regulator, set the grounding mode; For the high-voltage safety topology platform connection line and the corresponding voltage regulator, limit the rated voltage, calculate the single-phase inductance current limiter power; Design the transformer capacity and apply it to the live training platform safety topology.

2. The safety topology design method for a live-line training and evaluation platform as described in claim 1, characterized in that: The low-voltage safety topology platform includes a first low-voltage safety topology platform and a second low-voltage safety topology platform; The first low-voltage safety topology platform is set to neutral grounding mode, and further uses inductance current limiter for current limiting; Design the equivalent circuit of single-phase ground fault and phase-to-phase short circuit fault; Limit the fault current, calculate the impedance of the required inductance current limiter; Set the power margin of the current limiting resistor, calculate the single-phase inductance current limiter; At the same time, the inductance is inserted into the inductance, and the reactive power consumed by the line to ground capacitance is compensated.

3. The safety topology design method for a live-line training and evaluation platform as described in claim 2, characterized in that: The second low-voltage safety topology platform includes setting the neutral grounding mode, and further using the inductance current limiter for current limiting; Boost the transformer to three-phase short circuit of the training line to improve the line voltage; According to the current limiting current and single-phase voltage, the transformer and voltage regulator capacity are calculated; The impedance value of the inductance current limiter is calculated, and then the resistance and reactance value of the inductance current limiter is calculated.

4. The safety topology design method for a live-line training and evaluation platform as described in claim 3, characterized in that: The high-voltage safety topology platform includes a first high-voltage safety topology platform and a second high-voltage safety topology platform; Set the neutral grounding mode; Further use inductance current limiter for current limiting; Set the high rated voltage.

5. The safety topology design method for a live-line training and evaluation platform as described in claim 4, characterized in that: The high-voltage safety topology platform also includes the connection group of the three-phase step-up transformer of the high-voltage safety topology platform is Dyn11, the high-voltage side neutral point is directly grounded, and the output power reaches the maximum value, that is, the current limiting current, when phase-to-phase short circuit fault or short circuit fault occurs; At the same time, considering 3 times margin, the capacity of the step-up transformer and the voltage regulator can be calculated according to the current limiting current and single-phase voltage: wherein, Vnom is the system nominal voltage; Ilim is the current limit value, set to 50 mA; S is the capacity of the three-phase step-up transformer and the three-phase voltage regulator; When single-phase ground fault occurs, ignore the impedance of three-phase step-up transformer and line impedance and fault resistance, the fault current when single-phase ground fault occurs is: To limit the fault current to The impedance value of the single-phase grounding impedance limiting current device should be: wherein, is the fault current and Z is the impedance of the impedance current limiter.

6. The method of claim 5, wherein: the platform security topology design is for a charged particle beam inspection platform. The high-voltage safety topology platform also includes, when phase-to-phase short circuit fault occurs, ignore the impedance of three-phase step-up transformer and line impedance and fault resistance, the fault current is: ​ limiting the fault current to The impedance value of the single-phase resistance-inductance current limiter under the condition of phase-to-phase short circuit is Under single-phase ground condition, the impedance value of single-phase inductance current limiter is calculated, which is greater than the current limiting resistance value obtained under phase-to-phase short circuit condition, and the maximum value is taken, that is, the impedance value of the current limiter is set to: The impedance value of the inductance current limiter is increased to 110%~130% of the reference value, that is: The power of the current limiting resistor considers 3 times margin, that is, the power of the single-phase inductance current limiter calculated by the current limiting current is: Wherein, S is the power of single-phase inductance current limiter.

7. The safety topology design method for a live-line training and evaluation platform as described in claim 6, characterized in that: The design of transformer capacity includes designing the capacity of three-phase step-up transformer 2, determining the length of the training line according to the demand, and estimating the system capacitance current; Estimate the apparent power required by the system under normal operating state, single-phase ground fault state and phase-to-phase short circuit fault state respectively; Take the maximum apparent power as the reference, consider 3 to 5 times capacity margin, and select the capacity of three-phase step-up transformer.

8. A system for designing a live commissioning platform security topology, applying a method for designing a live commissioning platform security topology according to any one of claims 1 to 7, characterized in that, Comprising: The charged training and evaluation platform security topology system constructs a charged training and evaluation platform security topology structure, including a low-voltage security topology platform and a high-voltage security topology platform. The low-voltage security topology platform sets a grounding mode for the low-voltage security topology platform connection line and the corresponding voltage regulator. The high-voltage security topology platform limits the rated voltage for the high-voltage security topology platform connection line and the corresponding voltage regulator. A transformer capacity unit is designed and applied to the charged training and evaluation platform security topology structure. 9.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-8 when the computer program is executed by the processor. The processor executes the computer program to implement the steps of the charged training and evaluation platform security topology design method in any one of claims 1 to 7.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the charged training and evaluation platform security topology design method in any one of claims 1 to 7.

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