Power line troubleshooting practical training device

Abstract

The invention discloses a power line troubleshooting practical training device which comprises an operation panel and a power supply module. The operation panel is used for arranging wires according to a preset circuit diagram and is detachably provided with a plurality of analog switches, a plurality of fault indicators, a display operation screen, a plurality of fault points, a plurality of data acquisition terminal units and a core control module; the power supply module is used for supplying power to the operation panel; the analog switch simulates switching on and switching off in a manual or automatic mode so as to achieve the effect of power supply switching. The fault point can simulate a fault condition; the fault indicator is connected with a specified fault point; the core control module is connected with the fault indicator and the data acquisition terminal unit, and is used for selecting the fault type and fault point setting of the current simulation line according to the signal of the display operation screen, and simulating the common fault type. According to the invention, a real-time simulation technology is adopted, so that trainees can carry out troubleshooting and processing in an approximately real environment, and thus the fault handling capability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power line fault troubleshooting training, and in particular to a power line fault troubleshooting training device. Background Art

[0002] In modern power systems, distribution network automation technology is being widely used as a key means to improve the efficiency and reliability of power grid operation. With the development of smart grids, the types and number of distribution network automation equipment are increasing, including smart circuit breakers, power quality monitoring equipment, fault indicators, and communication systems. These new devices can significantly improve the monitoring capabilities, automatic fault detection and isolation capabilities of power systems, but they also bring new challenges.

[0003] 1. Complexity of distribution network automation equipment: The introduction of new automation equipment has made the structure and function of the distribution system more complex. Functions such as interconnection, data interaction, and fault self-healing between devices rely on efficient communication networks and intelligent algorithms. However, due to the high-tech content of the equipment, operation and maintenance personnel face higher technical requirements when handling faults, and traditional troubleshooting methods often cannot adapt to this change.

[0004] 2. Increased fault rate: As the number and types of equipment increase, the probability of faults also increases. In modern distribution networks, the nature of faults is more diverse. In addition to traditional electrical faults, they may also involve communication interruptions, system configuration errors and other issues. These faults not only affect the reliability of power supply, but may also cause economic losses and social impacts.

[0005] 3. The skill levels of operation and maintenance personnel vary: At present, many emergency maintenance personnel lack the necessary professional knowledge and practical experience when facing new automation equipment. Due to the slow accumulation of experience and backward training methods in the industry, the technical level of operation and maintenance personnel is difficult to keep up with the pace of equipment development, resulting in insufficient response and processing capabilities when dealing with complex faults. This not only increases the time and cost of fault handling, but also affects the overall operating efficiency of the distribution network.

[0006] 4. Lack of professional training devices: Currently, there is a lack of professional training devices on the market that can simulate new distribution automation technologies and their faults. This makes it difficult for emergency maintenance personnel to improve their skills in a systematic and targeted manner. This situation makes it impossible for maintenance personnel to deal with complex fault situations that may be encountered in actual work through practical exercises, thus affecting the safety and reliability of the power system.

[0007] Through the above background analysis, it can be seen that the development of an efficient professional training device for power line fault troubleshooting is very necessary. This technology can not only help operation and maintenance personnel quickly master the skills of troubleshooting in a simulated environment, but also improve their emergency handling capabilities in actual work, thereby providing strong support for optimizing the operation and maintenance management of distribution networks. The application of distribution network automation technology will put more and more new automation equipment into operation in the distribution network, and the frequency of handling problems related to the fault operation status, fault isolation, switch refusal and communication interruption of distribution network automation will also increase relatively, causing the operation and maintenance pressure to be heavier, and gradually there will be an imbalance between the professional quality of emergency repair operation and maintenance personnel and the technological content of equipment. Therefore, emergency repair operation and maintenance personnel need to quickly improve their professional knowledge and capabilities, but there is currently a lack of professional training devices for power line fault troubleshooting that meet the new distribution automation technology. However, experience in power grid fault finding and handling often requires a long time to accumulate. Summary of the invention

[0008] The present invention aims to provide a power line fault troubleshooting training device, which adopts real-time simulation technology to enable trainees to perform fault troubleshooting and processing in a close-to-real environment, thereby improving their ability to cope with faults.

[0009] To achieve the above-mentioned object, the present invention provides a power line fault troubleshooting training device, comprising an operation panel and a power supply module, wherein the operation panel is used for wiring according to a preset circuit diagram and comprises a plurality of detachably mounted analog switches, a plurality of fault indicators, a display operation screen, a plurality of fault points, a plurality of data acquisition terminal units and a core control module; the power supply module is used for supplying power to the operation panel;

[0010] The simulation switch simulates opening and closing of the switch manually or automatically to achieve the effect of power transfer, and is connected by cables simulating actual operating lines;

[0011] The fault point can simulate a fault condition and be connected to a correspondingly set fault position through a cable according to a circuit diagram corresponding to the fault;

[0012] The fault indicator is connected to a designated fault point to indicate the fault condition of the fault point and to send the fault condition to the core control module;

[0013] The data acquisition terminal unit is connected to the analog switch or the fault point, and is used to collect current information and voltage information of the analog switch or the fault point and transmit it to the core control module;

[0014] The display operation screen is combined with the core control module, and the fault point and fault type can be set on the display screen, and the position corresponding to the fault point can also be seen on the display screen;

[0015] The core control module is connected to the fault indicator and the data acquisition terminal unit, and is used to select the fault type and fault point setting of the current simulation line according to the signal displayed on the operation screen, and simulate common fault types.

[0016] Particularly, a light bar is provided on the operation panel; the light bar is used to simulate line power supply.

[0017] Particularly, the fault indicator is encapsulated in a housing; an indicator light for indicating a fault condition is provided on the housing.

[0018] Particularly, a four-position switch is provided at the fault point, and the four-position switch can simulate four corresponding fault conditions.

[0019] In particular, the common fault types include single-phase grounding, two-phase short circuit, two-phase short circuit to grounding and three-phase short circuit.

[0020] Particularly, the name of the switch represented by the analog switch or the name of the fault point represented by the fault indicator is transferred onto the operation panel by transfer paper.

[0021] Particularly, the display operation screen adopts a high-resolution reflective TFT-LCD liquid crystal capacitive screen.

[0022] In particular, the core control module adopts a 32-bit ARM chip STM32F103ZET6 based on the Cotex-M3 core.

[0023] When in use, you only need to turn on the power switch to power on the device. Then you can set the corresponding fault on the display screen to simulate the fault situation in the real scene. The opening and closing of the switches in each position can be controlled by the display screen to simulate the power transfer operation under the fault situation. You can also set the fault directly on the panel by pressing the four-position switch. When a fault occurs, the upper switch position simulates tripping and the power supply of the changed section of the line is cut off. At this time, the power transfer operation can be achieved by manually controlling the switch or controlling the switch on the control panel.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention adopts real-time simulation technology: This device uses high-precision simulation circuits and advanced control technology to achieve real-time simulation of actual power line faults. Through self-developed simulation software, operators can set faults according to the actual line diagram, including fault type (such as ground fault, short circuit fault, etc.), fault location and fault degree. And the current energized circuit is displayed on the panel in real time through light indication. This technology can ensure that trainees can learn and practice in an environment closer to the real world, and improve their ability to deal with actual faults.

[0026] 2. The present invention adopts four-position switch technology: The device is designed with a "four-position switch" control system, which allows operators to simulate various types of faults, including single-phase grounding, two-phase short circuit, two-phase short circuit grounding and three-phase short circuit. The configuration of the four-position switch realizes the rapid switching of the fault point. The operator can flexibly set and clear the fault between different fault points. Each fault point is set with a four-position switch, corresponding to four fault conditions. The principle of setting the fault point with the four-position switch is shown in the figure below, which greatly enhances the diversity and adaptability of training.

[0027] 3. Interactive operation interface: The present invention develops an intuitive interactive operation interface, which enables operators to easily configure fault indicators and DTU (data acquisition terminal unit) loop alarm status. The interface can display the fault status in real time. When the corresponding fault status is set on the panel, the corresponding fault and fault point are also displayed on the display screen, and the power-on and power-off status of the line is simulated by the light strip (when the line section is powered on, the corresponding simulated line light strip lights up, and when the line section is powered off, the corresponding line light strip goes out) to help operators quickly understand the fault impact and troubleshooting process, so that they can make timely judgments during operation and improve the efficiency of troubleshooting. The fault point can be set at the fault point setting position on the operation panel, and the corresponding fault point and fault type can be set on the display operation screen, realizing flexible and changeable fault teaching methods.

[0028] 4. Simulation operation technology:

[0029] This device truly simulates the operation process of the pole-mounted knife switch and the line section switch, including the "pull" and "close" actions. It can not only realize the opening and closing operation by pressing the switch in the switch position, but also set the opening and closing state of each switch position on the display operation screen to train the actual operation skills of the operator. The simulation operation link will include actual operations such as fault isolation and power recovery, which will comprehensively improve the fault handling ability of the operation and maintenance personnel and enhance their adaptability in actual work. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0031] Figure 1 This is a structural diagram of an operation panel of a power line fault troubleshooting training device of the present invention;

[0032] Figure 2 A structural diagram of an operation panel of a power line fault troubleshooting training device according to the present invention without transfer printing;

[0033] Figure 3 It is a block diagram of the composition of a power line fault troubleshooting training device of the present invention and a principle diagram of the training process;

[0034] Figure 4 The present invention discloses an electrical schematic diagram of a four-position switch of a power line fault troubleshooting training device.

[0035] In the figure: 1. Core control module; 2. Fault indicator; 3. Analog switch; 4. Display operation screen. DETAILED DESCRIPTION

[0036] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] like Figure 1-Figure 3As shown, the present invention provides a power line fault troubleshooting training device, including an operation panel and a power supply module, wherein the operation panel is used for wiring according to a preset circuit diagram and a plurality of detachably mounted analog switches, a plurality of fault indicators, a display operation screen, a plurality of fault points, a plurality of data acquisition terminal units and a core control module; the power supply module is used for supplying power to the operation panel; the name of the analog switch representing the switch or the name of the fault point represented by the fault indicator is transferred on the operation panel through transfer paper, such as 10kV live wire 905, 10kV scattered wire 905, etc. Among them, the 10kV live wire 905, the 10kV scattered wire 905 and the 10kV scattered wire 907 simulate actual power supply through switches, and the operator can flexibly set the on and off conditions of the three switches to realize power transfer under simulated fault conditions.

[0040] The simulation switch simulates opening and closing of the switch manually or automatically to achieve the effect of power transfer, and is connected by cables that simulate the actual operating lines;

[0041] The fault point can simulate the fault situation and connect to the corresponding fault location through the cable according to the circuit diagram corresponding to the fault; Figure 4 As shown, a four-position switch is set at the fault point, and the four-position switch can simulate four corresponding fault conditions.

[0042] The fault indicator is connected to a designated fault point for indicating a fault condition of the fault point and for sending the fault condition to a core control module;

[0043] The data acquisition terminal unit is connected to the analog switch or the fault point, and is used to collect the current information and voltage information of the analog switch or the fault point and transmit it to the core control module;

[0044] The display operation screen is combined with the core control module, and the fault point and fault type can be set on the display screen, and the corresponding position of the fault point can also be seen on the display screen;

[0045] The core control module is connected to the fault indicator and the data acquisition terminal unit, and is used to select the fault type and fault point setting of the current simulated line according to the signal on the display operation screen, and simulate common fault types. Common fault types include single-phase grounding, two-phase short circuit, two-phase short circuit grounding and three-phase short circuit.

[0046] The operation panel is equipped with a light bar. The light bar is used to simulate line power supply. The fault indicator is encapsulated in the shell. The shell is equipped with an indicator light to indicate the fault condition. The display operation screen uses a high-resolution reflective TFT-LCD liquid crystal capacitive screen. The core control module uses a 32-bit ARM chip STM32F103ZET6 based on the Cotex-M3 core.

[0047] When in use, you only need to turn on the power switch to power on the device. Then you can set the corresponding fault on the display screen to simulate the fault situation in the real scene. The opening and closing of the switches in each position can be controlled by the display screen to simulate the power transfer operation under the fault situation. You can also set the fault directly on the panel by pressing the four-position switch. When a fault occurs, the upper switch position simulates tripping and the power supply of the changed section of the line is cut off. At this time, the power transfer operation can be achieved by manually controlling the switch or controlling the switch on the control panel.

[0048] The embodiments of the present invention have the following advantages:

[0049] 1. Improve fault response capabilities:

[0050] Real-time simulation technology allows trainees to troubleshoot and handle faults in a near-real environment, thereby improving their ability to deal with faults. Trainees can master the characteristics and response strategies of different types of faults and be more comfortable dealing with emergencies in actual work.

[0051] 2. Enhance the flexibility and pertinence of training:

[0052] Through the four-position switch technology, operators can quickly switch fault types and set fault points, making the training content more diverse and flexible. This feature ensures that the training can be adjusted according to actual needs to meet the learning goals of trainees at different levels.

[0053] 3. Optimize the troubleshooting process:

[0054] The interactive operation interface design enables operators to identify and configure fault status in real time, which helps reduce the time required for troubleshooting and improve work efficiency. Through real-time fault status feedback, trainees can quickly understand the impact of the fault and the progress of troubleshooting, thereby optimizing the fault handling process.

[0055] 4. Improve practical skills:

[0056] The application of simulated operation technology allows trainees to practice real operating skills in a risk-free environment, such as manually operating knife switches and section switches. This training method can not only enhance trainees' practical skills, but also reduce the occurrence of operating errors in a real environment.

[0057] 5. Promote in-depth understanding of knowledge:

[0058] The design of the entire training device emphasizes the combination of theory and practice. Through practical operation and simulated troubleshooting, trainees can have a deeper understanding of the causes and treatment methods of power line faults. This depth of understanding helps to enhance trainees' mastery of fault prevention and response measures.

[0059] 6. Improve power supply reliability:

[0060] By enhancing the troubleshooting and emergency response capabilities of maintenance personnel, the reliability of the entire power system can be improved. Well-trained maintenance personnel can more effectively ensure the safe operation of power lines and reduce the occurrence of power outages.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A power line fault troubleshooting training device, characterized in that: It includes an operation panel and a power supply module. The operation panel is used to arrange the wiring according to the preset circuit diagram and has several detachably installed analog switches, several fault indicators, a display operation screen, several fault points, several data acquisition terminal units and a core control module; the power supply module is used to supply power to the operation panel; The simulation switch simulates opening and closing of the switch manually or automatically to achieve the effect of power transfer, and is connected by cables simulating actual operating lines; The fault point can simulate a fault condition and be connected to a correspondingly set fault position through a cable according to a circuit diagram corresponding to the fault; The fault indicator is connected to a designated fault point to indicate the fault condition of the fault point and to send the fault condition to the core control module; The data acquisition terminal unit is connected to the analog switch or the fault point, and is used to collect current information and voltage information of the analog switch or the fault point and transmit it to the core control module; The display operation screen is combined with the core control module, and the fault point and fault type can be set on the display screen, and the position corresponding to the fault point can also be seen on the display screen; The core control module is connected to the fault indicator and the data acquisition terminal unit, and is used to select the fault type and fault point setting of the current simulation line according to the signal displayed on the operation screen, and simulate common fault types.

2. A power line fault troubleshooting training device according to claim 1, characterized in that: The operation panel is provided with a light bar; the light bar is used to simulate line power supply.

3. A power line fault troubleshooting training device according to claim 1, characterized in that: The fault indicator is encapsulated in a shell; an indicator light indicating a fault condition is provided on the shell.

4. The power line fault troubleshooting training device according to claim 1, characterized in that: The fault point is provided with a four-position switch, and the four-position switch can simulate four corresponding fault conditions.

5. The power line fault troubleshooting training device according to claim 1 is characterized by: The common fault types include single-phase grounding, two-phase short circuit, two-phase short circuit to grounding and three-phase short circuit.

6. The power line fault troubleshooting training device according to claim 1, characterized in that: The name of the switch represented by the analog switch or the name of the fault point represented by the fault indicator is transferred onto the operation panel by transfer paper.

7. The power line fault troubleshooting training device according to claim 1, characterized in that: The display operation screen adopts a high-resolution reflective TFT-LCD liquid crystal capacitive screen.

8. The power line fault troubleshooting training device according to claim 1, characterized in that: The core control module adopts the 32-bit ARM chip STM32F103ZET6 based on the Cotex-M3 core.

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