A power system three-error operation somatic training system and method

Abstract

This invention discloses a tactile training system and method for three types of misoperations in power systems, belonging to the field of power system safety training technology. It includes a simulated power distribution system, a status detection system, a misoperation simulation system, an intelligent control system, and an interactive training terminal. By simulating an electric arc through a controllable discharge device and achieving the effect of accidental operation through a protection device simulation module, combined with an audio-visual smoke system, it realistically simulates the consequences of three types of misoperations: incorrect protection side setting, incorrect protection side wiring, and accidental contact with live cables. This invention addresses the problem in existing technologies of lacking training equipment capable of realistically simulating the consequences of these three types of misoperations, making it impossible for trainees to intuitively experience the dangers of misoperations, and hindering the effective improvement of operators' safety awareness and operational skills. This invention can effectively improve power operators' awareness and ability to prevent and handle these three typical misoperations, thus preventing power accidents.

Description

Technical Field

[0001] This invention relates to the field of power system safety training technology, specifically to a tactile training system and method for three common operational errors in power systems. Background Technology

[0002] In the daily operation, inspection and maintenance of the power system, incorrect setting of protection side, incorrect wiring of protection side, and accidental contact with live cables are the three core causes of substation operation and maintenance accidents. Such misoperations can not only easily cause damage to power equipment and power grid interruption, but also cause serious safety accidents such as electric shock and arc burns, resulting in huge economic losses to power companies. At the same time, they threaten the stable operation of the power system and the life safety of operators. Therefore, it is crucial to conduct targeted training on the prevention of misoperations for power system operators.

[0003] Traditional safety training often relies on theoretical instruction, lacking hands-on experience and thus limiting its effectiveness. Furthermore, current electrical safety training equipment often only simulates single operations, lacking equipment capable of realistically mimicking the consequences of these three types of misoperations. Moreover, the simulation functions of such equipment are relatively limited, mostly providing only simple audio-visual prompts, failing to accurately recreate real-world scenarios such as electric arcs, smoke, and equipment tripping caused by misoperations. This prevents trainees from intuitively experiencing the dangers of misoperation and hinders the effective improvement of operators' safety awareness and operational skills.

[0004] Therefore, a training system and method for experiential learning on the three common operational errors in power systems is needed to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention discloses a sensory training system and method for three types of misoperations in power systems. It can realistically simulate the dangerous consequences of three typical misoperations: incorrect setting of protection side, incorrect wiring of protection side, and accidental contact with live cables. The system improves training effectiveness through multi-sensory stimulation.

[0006] The present invention adopts the following technical solution:

[0007] A power system three-misoperation experiential training system, comprising:

[0008] The main body of the simulated power distribution system includes protection devices, terminal blocks, and simulated cables;

[0009] The status detection system is used to detect in real time the setting status of protection devices, the wiring status of terminal blocks, and the energized status of simulated cables;

[0010] The system for simulating misoperation includes:

[0011] An arc simulation device is used to simulate a short-circuit arc under triggering conditions.

[0012] An audible and visual alarm system, including flashing warning lights and directional sound devices, is used to emit audible and visual alarm signals when triggered.

[0013] The protection malfunction simulation device is used to simulate the failure or malfunction of the protection device and trigger the corresponding trip signal;

[0014] A smoke generation system, including a low-hazard smoke generator and a smoke guide device, is used to release smoke upon triggering conditions;

[0015] The intelligent control system is configured to determine whether the conditions for misoperation are met based on the operation status detected by the status detection system, and to control the misoperation simulation system to trigger the corresponding simulation effect when the conditions are met.

[0016] Interactive training terminals are used to provide theoretical teaching content, operational case demonstrations, and real-time operational guidance.

[0017] Furthermore, the arc simulation device employs a controllable discharge device, which simulates short-circuit arcs of different intensities by controlling the discharge parameters.

[0018] Furthermore, the protection maloperation simulation device can simulate the non-operation state and maloperation state of the protection device, wherein the non-operation state is that the trip is not triggered when it should have been operated, and the maloperation state is that the trip is triggered when it should not have been operated.

[0019] Furthermore, the status detection system includes: a setpoint detection module for monitoring the setpoint value of the protection device and comparing it with a preset safety range; a wiring detection module for detecting whether the connection logic of the terminal block conforms to preset rules; and a live-line detection module for monitoring the voltage status of the simulated cable and its contact status with the trainee.

[0020] Furthermore, the intelligent control system includes:

[0021] The data acquisition unit is used to acquire real-time detection data from the condition monitoring system.

[0022] The logic judgment unit is used to determine, according to the preset misoperation judgment rules, whether the current operation belongs to at least one of the following: protection side missetting, protection side miswiring, or accidental contact with live cable.

[0023] The effect triggering unit is used to control the corresponding device in the malfunction simulation system to start when the logic judgment unit determines that it is a malfunction.

[0024] Furthermore, a training method for experiential learning on three common operational errors in power systems includes the following steps:

[0025] S1. Trainees learn about protection side missetting, protection side miswiring, and accidental contact with live cables through interactive training terminals.

[0026] S2. Trainees perform practical operations on the main body of the simulated power distribution system;

[0027] S3, the intelligent control system monitors the trainee's operational status in real time through a status detection system;

[0028] S4. When the intelligent control system determines that the operation status meets the maloperation conditions, it triggers the corresponding simulation effect in the maloperation simulation system. The maloperation conditions include at least one of the following: protection side missetting, protection side miswiring, or accidental contact with a live cable.

[0029] Furthermore, in S4, when the maloperation condition is a protection side mis-setting time, the intelligent control system controls the protection maloperation simulation device to simulate the protection device's failure to operate or maloperation and triggers a trip signal, while simultaneously controlling the arc simulation device to generate an arc light and sound and light alarm system to issue an sound and light alarm signal.

[0030] Furthermore, in S4, when the maloperation condition is incorrect wiring on the protection side, the intelligent control system controls the protection maloperation simulation device to simulate the abnormal action of the protection device and triggers the maloperation signal, while simultaneously controlling the audible and visual alarm system to issue an audible and visual alarm signal.

[0031] Furthermore, in S4, when the misoperation condition is accidental contact with a live cable, the intelligent control system first controls the audible and visual alarm system to issue a safe distance alarm signal; if it is detected that the trainee directly contacts the simulated live cable, it further controls the arc simulation device to generate arc light, the audible and visual alarm system to issue an explosion sound signal, and the smoke generation system to release smoke, and generates an electric shock sensation within a safe voltage range through the arc simulation device or the independent electric shock simulation module.

[0032] Furthermore, it also includes:

[0033] S5. The intelligent control system records the trainee's operation process data and generates a training effectiveness evaluation report. The operation process data includes operation steps, misoperation trigger time, and corresponding simulation effect response.

[0034] The beneficial effects of this invention are as follows:

[0035] 1. This invention simulates the main body of a power distribution system to highly replicate real-world operation and maintenance scenarios, directly targeting the correlation between operational behaviors and dangerous consequences in training. Compared to traditional, generalized safety training, this invention precisely covers key risk points throughout the entire process, including parameter settings, wiring techniques, and on-site behaviors. It solves the problem of traditional training content being disconnected from actual misoperation scenarios, significantly improving the relevance and practicality of the training.

[0036] 2. This invention uses multi-dimensional simulations of arc light (visual), audible and visual alarms (auditory), and electric shock / smoke (tactile / olfactory) to intuitively present the immediate dangerous consequences of misoperation: incorrect timing of protection settings triggers short-circuit arcs and trip alarms; incorrect wiring simulates abnormal operation of the protection device and issues a warning; and accidental contact with a live cable triggers an early warning followed by an explosion sound, smoke, and a safe voltage electric shock sensor. This effectively addresses the pain point of the disconnect between cognition and practice, significantly enhancing the internalization of safety awareness.

[0037] 3. This invention collects operational data in real time through a status detection system, quickly identifies the type of erroneous operation by combining it with a logic judgment unit, and synchronously triggers corresponding simulation effects in conjunction with modules such as arc simulation, protection malfunction, and sound, light, and smoke. This design achieves real-time and dynamic correlation between operational behavior and dangerous consequences, avoiding the mechanical nature of fixed scripts in traditional simulation equipment. It can adapt to the operating habits and error types of different trainees, providing a personalized and precise feedback experience, and significantly improving the level of intelligence in training.

[0038] 4. This invention adopts a modular architecture, supporting targeted maintenance and functional expansion: individual modules such as arc light intensity and protection malfunction logic can be debugged separately; the setpoint safety range and trigger threshold can be adjusted according to different voltage levels; and new malfunction types can be added. This reduces long-term usage costs while meeting the needs of diverse training scenarios, enhancing the system's applicability and sustainability. Attached Figure Description

[0039] Figure 1 This is a diagram of the overall system architecture in this invention;

[0040] Figure 2 This is a schematic diagram of the overall process in this invention;

[0041] Figure 3 This is a structural diagram of the main body of the simulated power distribution system in this invention;

[0042] Figure 4 This is a structural diagram of the overall system in this invention. Detailed Implementation

[0043] The following will refer to the appendices in the embodiments of the present invention. Figure 1 To be continued Figure 4 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] This invention discloses a tactile training system for three common operational errors in power systems, as shown in the attached figure. Figure 1The physical entity of this system consists of six core modules, each working together via electrical connections and a data bus, as follows:

[0045] The main body of the simulated power distribution system includes protection devices, terminal blocks, and simulated cables;

[0046] As the operational platform for training, it simulates local power distribution scenarios in real substations / distribution stations, including:

[0047] Protection device: It adopts a miniaturized relay protection simulator (such as a microcomputer protection and control device), which supports the input of setting parameters (such as overcurrent protection setting and delay time), status indication (normal / action / alarm) and trip signal output (controlling the opening and closing of the simulated circuit breaker).

[0048] Terminal blocks: Standardized terminal blocks (such as Phoenix terminals) with clear color markings (such as live wire - red, neutral wire - blue, ground wire - yellow-green), used by trainees to practice wiring protection circuits (such as wiring the secondary side of current transformers and connecting trip circuits).

[0049] Simulated cables: The outer sheath is made of insulating material (such as rubber), and the inside is embedded with conductive copper core. Some cables are set to "energized state" (powered by low-voltage DC / AC simulated power supply, voltage level ≤36V safety voltage, or simulated high voltage by signal), and the surface is marked with "Electrified Danger" warning signs; other cables are in a non-energized state (for comparison operation).

[0050] The status detection system is used to detect in real time the setting status of protection devices, the wiring status of terminal blocks, and the energized status of simulated cables;

[0051] The status detection system includes: a setpoint detection module for monitoring the setpoint values ​​of the protection device and comparing them with a preset safety range; a wiring detection module for detecting whether the connection logic of the terminal block conforms to preset rules; and a live-line detection module for monitoring the voltage status of the simulated cable and its contact status with the trainee.

[0052] Real-time acquisition of operational data through distributed sensors provides a basis for intelligent control decisions, specifically including:

[0053] Setting value detection module: Integrated into the input interface of the protection device, it reads the setting value input by the student (such as overcurrent setting of 5A, 10A, etc.) through an A / D converter and compares it with the preset safety range (such as the overcurrent setting safety range of ≥10A when the line rated current is 8A). If the input value is lower than the range (such as 4A), it is marked as "incorrect setting".

[0054] Wiring detection module: It consists of contact sensors (such as flexible contact switches) installed at each port of the terminal block and loop logic analysis circuit. It monitors the connection status of each terminal in real time (whether it is connected, the connected object), and judges whether the wiring logic is correct by using a preset rule base (such as "the secondary side of the current transformer is not allowed to be open" and "the trip circuit must be connected in series with normally open contacts"). For example, it detects that the live wire and the neutral wire are short-circuited, or the protection signal line is incorrectly connected to the ground wire.

[0055] Live-line detection module: consists of two parts:

[0056] Voltage detection sensors (such as non-contact voltage probes) monitor whether the analog cable is energized (outputting analog signals such as 0V / 24V / 36V).

[0057] Proximity / contact sensors (such as infrared beam sensors + capacitive touch sensors) monitor the distance between the trainee's hand and the live cable (safe threshold set at 30cm) and whether there is direct contact (triggered when the distance between the hand and the cable surface is <5cm or the contact pressure is >threshold).

[0058] The accident simulation system is responsible for recreating the chain of dangerous consequences caused by accidental operation. It enhances immersion through multimodal effects, including:

[0059] An arc simulation device is used to simulate short-circuit arcs under triggering conditions. The device employs a controllable discharge mechanism, simulating short-circuit arcs of varying intensities by controlling discharge parameters. A controllable high-voltage discharge module (such as a gap discharge device) is used, with an intelligent control system controlling the discharge parameters (peak voltage 500V-1000V, discharge frequency 1-10 times / second, duration 0.1-0.5 seconds). Under simulated short-circuit / overload conditions, it generates bright arc light (visible light intensity ≥1000 lumens), simulating the visual impact of a real fault arc.

[0060] The audible and visual alarm system includes a flashing warning light and a directional sound device, used to emit audible and visual alarm signals under trigger conditions; the flashing warning light (red LED, flashing frequency 2Hz); the directional sound device (speaker, outputting an 80-100dB alarm sound, with a frequency covering the human ear's sensitive range of 2000-4000Hz), the two work together to issue a "danger" warning.

[0061] The protection maloperation simulation device is used to simulate the failure to operate or maloperation state of the protection device and trigger the corresponding trip signal; the protection maloperation simulation device can simulate the failure to operate and maloperation state of the protection device, wherein the failure to operate state is that the trip is not triggered when it should operate, and the maloperation state is that the trip is triggered when it should not operate.

[0062] By controlling the logic output of the protection device through program control (such as modifying the trip threshold parameters of the protection chip), two fault states can be simulated:

[0063] Failure to trip: When the line current exceeds the set value (e.g., 15A), the protection device does not trigger a trip signal (the circuit breaker remains closed).

[0064] False tripping: When the line current is normal (e.g., 5A), the protection device erroneously triggers a trip signal (circuit breaker trips).

[0065] The smoke generation system includes a low-hazard smoke generator and a smoke guide device, used to release smoke under triggering conditions; the low-hazard smoke generator (food-grade glycerin atomizer) releases white smoke (non-toxic and non-irritating) to the vicinity of the simulated cable through the smoke guide pipe, and, together with the arc light and explosion sound (simulated by audio equipment), recreates the smoke effect of a short-circuit explosion.

[0066] The intelligent control system is configured to determine whether the conditions for misoperation are met based on the operation status detected by the status detection system, and to control the misoperation simulation system to trigger the corresponding simulation effect when the conditions are met.

[0067] The intelligent control system, acting as the "brain" of the system, has an embedded controller (such as an STM32 series microcontroller or an industrial PLC) at its core, including:

[0068] The data acquisition unit is used to acquire real-time detection data from the status detection system; it acquires raw data (such as set value, wiring port status, cable voltage / contact signal) from the set value detection module, wiring detection module, and live detection module in real time via I2C / SPI / RS485 bus.

[0069] The logic judgment unit is used to determine whether the current operation belongs to at least one of the following: protection side missetting, protection side wiring error, or accidental contact with a live cable, based on preset misoperation judgment rules; it has a built-in preset rule library and determines the type of misoperation based on the following conditions:

[0070] Protection side missetting: The setting value exceeds the safe range (e.g., overcurrent setting value < line rated current × 1.2);

[0071] Incorrect wiring on the protection side: Wiring logic violates rules (such as open circuit on the secondary side of the current transformer or short circuit in the trip circuit).

[0072] Accidental contact with live cables: Trainees' hands enter the safe distance (<30cm) or directly touch live cables.

[0073] The effect triggering unit is used to control the corresponding device in the malfunction simulation system to start when the logic judgment unit determines that a malfunction has occurred. It controls the start of the corresponding simulation device according to the type of malfunction (e.g., malfunction triggering of protection malfunction + arc flash + alarm sound; malfunction triggering a warning first, then escalating to electric shock simulation).

[0074] Interactive training terminals are used to provide theoretical teaching content, operational case demonstrations, and real-time operational guidance.

[0075] Using a touch screen all-in-one machine (or tablet), integrating:

[0076] Theoretical teaching module: storage of accident case videos of malfunctions (such as a substation tripping due to incorrect setting of settings), 3D animation (demonstrating the correct wiring steps), and operation procedure documents (such as relevant clauses of the "Electric Power Safety Work Regulations");

[0077] Real-time guidance module: Captures the student's operation screen via camera (optional) and overlays a virtual prompt box (such as "The current setting is below the safe range, please re-enter!").

[0078] Data display module: Displays operation records after training (e.g., "In the 3rd minute, the live cable was accidentally touched, triggering an electric arc and smoke").

[0079] A training method for understanding three common operational errors in power systems includes the following steps:

[0080] S1. Theoretical Learning

[0081] Trainees use interactive training terminals to learn about the theory of protection side missetting, protection side miswiring, and accidental contact with live cables;

[0082] After logging into the system, students will first view the following content through the terminal:

[0083] Case introduction: Play a video of a real power accident (such as a power plant experiencing a power outage due to incorrect protection wiring, resulting in losses of up to one million yuan), and analyze the direct cause of the accident (such as "incorrect connection of the ground wire and the live wire" in the terminal block).

[0084] Knowledge Explanation: 3D animation demonstrates the mechanisms of three major misoperations (e.g., "protection missetting → protection device not operating during fault → equipment burnout") and safety regulations (e.g., "set value must be checked by two people" and "live work must maintain a safe distance of ≥30cm").

[0085] Pre-test: Test students' basic knowledge through multiple-choice / true / false questions (such as "How many times should the overcurrent protection setting be set to the line's rated current?").

[0086] S2, Practical Simulation

[0087] Trainees conduct hands-on operations on the main body of a simulated power distribution system;

[0088] Students operate the simulated power distribution system under the guidance of instructors or independently:

[0089] Scenario of incorrect setting on the protection side: Inputting a setting value on the touch screen of the protection device (e.g., setting the overcurrent protection setting of a 10kV line to 4A, while the rated current of the line is 8A, the safe range should be ≥10A).

[0090] Scenario of incorrect wiring on the protection side: Connecting wires to the terminal block (such as shorting "K1" and "K2" on the secondary side of the current transformer (the correct circuit should be open, but incorrect shorting may cause the protection to malfunction. The logic can be adjusted according to the actual rules, for example, shorting the trip circuit to the ground wire to simulate incorrect wiring).

[0091] Accidental contact with live cable scenario: Trainees reach out and touch a simulated live cable (the cable surface has a "220V Live" warning label) without observing the markings.

[0092] S3, Intelligent Detection

[0093] The intelligent control system monitors the trainee's operational status in real time through a status detection system;

[0094] The intelligent control system collects and analyzes operational data in real time.

[0095] Incorrect setting monitoring: The setting detection module detected that the overcurrent setting entered by the student was 4A (< the safe range of 10A), and marked it as "incorrect setting";

[0096] Incorrect Wiring Detection: The wiring detection module detects a short circuit between the "trip signal line" and the "ground line" in the terminal block (violating the rule that "trip circuit must not be grounded"), and marks it as "incorrect wiring".

[0097] Accidental touch detection: The proximity sensor of the live detection module detects that the distance between the trainee's hand and the live cable is less than 30cm (first triggering a safety distance warning), and then the contact sensor detects that the hand is in direct contact with the cable (triggering a direct contact alarm).

[0098] S4. Accidental Triggering and Multi-Sensory Feedback

[0099] When the intelligent control system determines that the operation status meets the conditions for misoperation, it triggers the corresponding simulation effect in the misoperation simulation system. The misoperation conditions include at least one of the following: incorrect setting of the protection side, incorrect wiring of the protection side, or accidental contact with a live cable.

[0100] In S4, when the maloperation condition is the protection side missetting time, the intelligent control system controls the protection maloperation simulation device to simulate the protection device's failure to operate or maloperation and triggers the trip signal. At the same time, it controls the arc simulation device to generate an arc light and sound and light alarm system to issue an sound and light alarm signal.

[0101] In S4, when the maloperation condition is incorrect wiring on the protection side, the intelligent control system controls the protection maloperation simulation device to simulate the abnormal action of the protection device and triggers the maloperation signal, while simultaneously controlling the audible and visual alarm system to issue audible and visual alarm signals.

[0102] In S4, when the misoperation condition is accidental contact with a live cable, the intelligent control system first controls the audible and visual alarm system to issue a safe distance alarm signal; if it is detected that the trainee directly contacts the simulated live cable, it further controls the arc simulation device to generate arc light, the audible and visual alarm system to issue an explosion sound signal, and the smoke generation system to release smoke, and generates an electric shock sensation within a safe voltage range through the arc simulation device or the independent electric shock simulation module.

[0103] When the intelligent control system determines that the erroneous operation conditions are met, it triggers the corresponding simulation effect according to the type:

[0104] (1) Protection side error setting scenario

[0105] Protection malfunction simulation device: The simulated protection device fails to operate (the actual line current is 15A > the set value of 4A, but the protection device does not output a trip signal), and then the line is "virtually burned out" due to continuous overcurrent (displayed as "equipment overheating and damaged" on the terminal).

[0106] Arc simulation device: Triggers a controlled discharge at a simulated short circuit point (such as at a terminal block) to generate an arc light that lasts for 0.3 seconds (brightness ≈ 1500 lumens).

[0107] Audible and visual alarm system: The red flashing light flashes at a frequency of 2Hz, and the directional speaker emits a high-frequency alarm sound (90dB) of "beep-beep-beep".

[0108] Trainee's perception: Seeing the electric arc, hearing the piercing sound, and observing the terminal prompt "Protection device not activated, line fault imminent!"

[0109] (2) Scenario of incorrect wiring on the protection side

[0110] Protection malfunction simulation device: Simulates the malfunction of the protection device (the line current is normally 5A, but the protection device incorrectly outputs a trip signal), triggering the simulated circuit breaker to trip (the circuit breaker contacts separate).

[0111] Audible and visual alarm system: Flashing light (yellow) and sound ("Trigger tripped! Please check wiring") indicate abnormality;

[0112] Trainee's experience: Hearing the mechanical sound of the circuit breaker tripping and seeing the terminal display "Unplanned power outage caused by wiring error!"

[0113] (3) Accidental contact with live cables

[0114] Phase 1 (within safe distance): When the live detection module detects a hand distance of <30cm, the audible and visual alarm system will issue a voice prompt (directional speaker) saying "Please stay away from live equipment!" + a slow flashing blue light.

[0115] Second stage (direct contact): The contact sensor confirms hand contact with the cable and triggers:

[0116] Arc simulation device: generates a momentary electric arc at the point of contact (simulating an electric shock spark);

[0117] Audible and visual alarm system: The speaker emits a simulated "Explosion!" sound (100dB) + a rapidly flashing red light;

[0118] Smoke generation system: Releases white smoke (simulating short-circuit explosion smoke) to the vicinity of the contact point through a smoke guide pipe;

[0119] Electric shock simulation (optional): The low-voltage pulse module in the arc simulation device (outputs a safe current of 5V / 10mA, which is applied to the skin of the hand after being isolated by an insulated glove) simulates a slight numbness (compliant with GB / T 18831-2017 safety standards).

[0120] Trainee's perception: First, a warning is heard, and upon contact, an instantaneous sensation of electric arc, explosion, smoke, and a slight electric shock is felt, strongly realizing "Danger of being electrified!"

[0121] S5. Effectiveness Evaluation and Improvement

[0122] The intelligent control system records the trainees' operation process data and generates a training effectiveness evaluation report. The operation process data includes operation steps, the time of misoperation triggering, and the corresponding simulated effect response.

[0123] The intelligent control system records all trainee operation data and generates an evaluation report after the training, including:

[0124] Operation steps timeline (e.g., "Minute 2: Input set value 4A → Minute 3: Incorrect wiring connection → Minute 5: Contact with live cable").

[0125] Types of misoperation and triggering times (e.g., "missetting of protection side (setting value too low) @2:15 → miswiring of protection side (short circuit of tripping circuit) @3:02 → accidental contact with live cable (direct contact) @5:10").

[0126] Simulated effect response (e.g., "arc duration 0.3 seconds, alarm sound 90 dB, simulated electric shock current 5 mA");

[0127] Improvement suggestions (such as "strengthen training in setting value verification", "check drawings before wiring", "use voltage detectors for live work").

[0128] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, any equivalent modifications or substitutions made by those skilled in the art to the relevant technical features will fall within the scope of protection of the present invention.

Claims

1. A tactile training system for three common operational errors in power systems, characterized in that, include: The main body of the simulated power distribution system includes protection devices, terminal blocks, and simulated cables; The status detection system is used to detect in real time the setting status of protection devices, the wiring status of terminal blocks, and the energized status of simulated cables; The system for simulating misoperation includes: An arc simulation device is used to simulate a short-circuit arc under triggering conditions. An audible and visual alarm system, including flashing warning lights and directional sound devices, is used to emit audible and visual alarm signals when triggered. The protection malfunction simulation device is used to simulate the failure or malfunction of the protection device and trigger the corresponding trip signal; A smoke generation system, including a low-hazard smoke generator and a smoke guide device, is used to release smoke upon triggering conditions; The intelligent control system is configured to determine whether the conditions for misoperation are met based on the operation status detected by the status detection system, and to control the misoperation simulation system to trigger the corresponding simulation effect when the conditions are met. Interactive training terminals are used to provide theoretical teaching content, operational case demonstrations, and real-time operational guidance.

2. The power system three-misoperation haptic training system according to claim 1, characterized in that, The arc simulation device uses a controllable discharge device to simulate short-circuit arcs of different intensities by controlling the discharge parameters.

3. The power system three-misoperation haptic training system according to claim 1, characterized in that, The protection maloperation simulation device can simulate the non-operation state and maloperation state of the protection device. The non-operation state is when the trip is not triggered when it should have been operated, and the maloperation state is when the trip is triggered when it should not have been operated.

4. The power system three-misoperation haptic training system according to claim 1, characterized in that, The status detection system includes: a setpoint detection module for monitoring the setpoint values ​​of the protection device and comparing them with a preset safety range; a wiring detection module for detecting whether the connection logic of the terminal block conforms to preset rules; and a live-line detection module for monitoring the voltage status of the simulated cable and its contact status with the trainee.

5. A power system three-misoperation haptic training system according to claim 1, characterized in that, The intelligent control system includes: The data acquisition unit is used to acquire real-time detection data from the condition monitoring system. The logic judgment unit is used to determine, according to the preset misoperation judgment rules, whether the current operation belongs to at least one of the following: protection side missetting, protection side miswiring, or accidental contact with live cable. The effect triggering unit is used to control the corresponding device in the malfunction simulation system to start when the logic judgment unit determines that it is a malfunction.

6. A method for experiential training on three types of operational errors in a power system, applied to the experiential training system for three types of operational errors in a power system as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Trainees learn about protection side missetting, protection side miswiring, and accidental contact with live cables through interactive training terminals. S2. Trainees perform practical operations on the main body of the simulated power distribution system; S3, the intelligent control system monitors the trainee's operational status in real time through a status detection system; S4. When the intelligent control system determines that the operation status meets the maloperation conditions, it triggers the corresponding simulation effect in the maloperation simulation system. The maloperation conditions include at least one of the following: protection side missetting, protection side miswiring, or accidental contact with a live cable.

7. The method for training users on three types of operational errors in a power system according to claim 6, characterized in that, In S4, when the maloperation condition is a protection side mis-setting time, the intelligent control system controls the protection maloperation simulation device to simulate the protection device's failure to operate or maloperation and triggers a trip signal. At the same time, it controls the arc simulation device to generate an arc light and sound and light alarm system to issue an sound and light alarm signal.

8. A training method for experiential learning on three common operational errors in a power system according to claim 6, characterized in that, In S4, when the maloperation condition is incorrect wiring on the protection side, the intelligent control system controls the protection maloperation simulation device to simulate the abnormal action of the protection device and triggers the maloperation signal, while simultaneously controlling the audible and visual alarm system to issue an audible and visual alarm signal.

9. A training method for experiential learning on three common operational errors in a power system according to claim 6, characterized in that, In S4, when the misoperation condition is accidental contact with a live cable, the intelligent control system first controls the audible and visual alarm system to issue a safe distance alarm signal; if it is detected that the trainee directly contacts the simulated live cable, it further controls the arc simulation device to generate arc light, the audible and visual alarm system to issue an explosion sound signal, and the smoke generation system to release smoke, and generates an electric shock sensation within a safe voltage range through the arc simulation device or the independent electric shock simulation module.

10. A method for training users on three types of operational errors in a power system according to claim 6, characterized in that, Also includes: S5. The intelligent control system records the trainee's operation process data and generates a training effectiveness evaluation report. The operation process data includes operation steps, misoperation trigger time, and corresponding simulation effect response.

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