As a new technology that has developed rapidly in recent years, VR (Virtual Reality) technology has broad application prospects and supports the integration of artificial intelligence, machine learning, big data and other technologies to achieve more intelligent and personalized applications. In the field of power energy, VR technology, supported by high-performance computers and proprietary equipment, has been applied to training and safety management of substations. It has greatly improved the operating efficiency and safety of the substation, as well as the training effect and safety awareness of the operators.
As my country's leading industrial electrical appliance enterprise and new energy enterprise, Chint Group's industry covers the entire power equipment industry chain of "generation, transmission, transformation, distribution, use and storage". In order to highly respond to the digitalization process of the times, Chint Electric Power Company and Tupu Software have joined hands to build a "VR substation accident recall and inversion digital twin system". The overall use of modern VR technology and equipment, reference to real business scenarios, through real-time data collection and substation data modeling, etc., interprets the three-dimensional scene of the substation virtual simulation business.
Users can use VR equipment to understand the overall layout of the substation in an immersive way. With the help of VR handles, users can interact with the equipment and get real feedback on the opening and closing sounds, knob status changes, control panel indicator light changes, car entry and exit and other interactive experiences. . Tupu HT digital twin substation scene allows users to avoid safety hazards in real scenes and achieve training purposes.
Tupu is based on the WebXR standard, allowing users to use VR equipment to walk 360° in the virtual substation and conduct real-time interactive operations on various equipment in the substation. Immerse yourself in the location and direction of each voltage room and main control room in the substation, and simulate the status information demonstration and interaction of different electrical cabinets. Tupu VR technology is now adapted to various VR devices such as HTC Vive, Oculus, Qeust2, and Pico.
Panoramic tour of substation
The VR substation built based on Tupu's self-developed powerful 3D rendering engine HT for Web integrates the three-dimensional model of the substation into the virtual reality scene to realize the inspection function of the entire substation, allowing operators to move around the scene from a first-person perspective , realizes interactive modes such as perspective switching, and can also complete the switching function between various scenes in the substation. It enables employees to master information about high-risk facilities and various buildings in the station, reduces the risk of personnel entering high-pressure areas, and reduces the loss of equipment.
Operational interactive training
Tupu HT supports interactive operations with physical equipment in a three-dimensional simulation scene. Staff can perform a series of simulated training operations such as opening/closing the electrical cabinets in the substation in a virtual environment to avoid risks, reduce training costs, and ensure the safety and stability of the substation. , reliable operation.
Main control room interactive training
The main control room is an important area in the substation. It is the core control center of the substation and is used to monitor, control and protect various equipment and systems in the substation. The main control room is responsible for the control and monitoring functions. It can display the line connection diagrams of different power distribution rooms and switch stations, and simulate remote control of different accident states to facilitate accident correction training for staff.
System diagram switching: Click the computer screen on the five seats in the main control room with the handle to switch the corresponding system diagram page and project it to the large screen on the wall;
Accident simulation selection: After selecting the accident simulation system, switch between different accident simulation states on the large screen in the main control room. Click to start the simulation, and all switch cabinets in the substation can be set to the corresponding accident state, and then the current accident simulation training will be carried out.
35kV room switch cabinet interactive training
Introduction to switch cabinet
As a key component of the power system, the 35kv room switch cabinet has multiple functions. One type of switch cabinet can connect or switch different power supplies in the power system to the main bus to achieve power supply flexibility and reliability. It can also provide monitoring, measurement and protection of the main bus, such as over-current protection, short-circuit protection, etc.
Common switches in 35kV room switch cabinets include circuit breakers and knife switches, which are used to isolate circuits, switch power supplies, and protect main busbars and related equipment. Usually, remote/local knobs and opening/closing knobs are used to control the operation and status of the switch cabinet.
1. Common switches in 35kV room switch cabinets include circuit breakers and knife switches, which are used to isolate circuits, switch power supplies, and protect main busbars and related equipment. Usually, remote/local knobs and opening/closing knobs are used to control the operation and status of the switch cabinet.
2. The remote/local knob is a device used to switch the remote operation mode and the local operation mode of the switch cabinet. When the knob is in the remote position, it means that the switch cabinet is in a remote operation state and can be operated through the remote control system; when the knob is in the local position, it means that the switch cabinet is in a local operation state.
Model diagram:
Opening operation
The case here uses the opening operation simulation to demonstrate the animation. The closing operation simulation and the opening operation have reverse operation logic:
1. Original operating state: The upper contact indicator light of the circuit breaker, the circuit breaker opening and closing indicator light, and the lower contact indicator light of the circuit breaker on the control panel are connected in red; the knob is facing away and is in the locked state, and other knobs are in the locked state. It is in the center and cannot be operated; the grounding device below is locked and separated.
2. Run the hot standby operation: Turn the knob to the local position, which is the unlocked state, and turn the knob to open and rebound; the circuit breaker opening and closing indicator light in the middle of the control panel tilts to green, which is the opening and disconnecting state.
3. Operation from hot standby to cold standby: Open the buckle of the trolley and crank it in and out, turn the trolley to the left (unlock), rotate the handle counterclockwise, and crank the trolley out; the contact indicator light on the circuit breaker on the control panel and under the circuit breaker The contact indicators all turn green; then press the test opening button, and the opening and closing indicator light of the circuit breaker in the middle of the control panel turns green.
4. Cold standby transfer maintenance operation: open the door and pull out the trolley.
Interactive training of line and electrical cabinets in 110kV switch station
Introduction to switch cabinet
The line electrical cabinet of the switch station usually consists of a metal shell, a circuit breaker, a voltage reducer, an isolation switch, a grounding switch, a protection and control device, etc. It is used to control and distribute electric energy in the 110kV power system and protect related equipment from Damage caused by electrical faults such as overcurrent and short circuit. The electrical cabinet effectively manages and controls the flow of current and power supply in the power system to ensure stable system operation.
In the line electrical cabinet of the 110kV switch station, the switches involved mainly include circuit breakers, isolating switches and grounding switches. These switching devices play a key role in the line electrical cabinet of the 110kV switch station and are used to control the connection and connection of circuits. Disconnect to ensure the normal operation of the power system and the safety of the equipment.
Closing operation
By default, all switches are in the green off state. Open the electrical cabinet door and click switch knobs 1111, 1112, 11101, 111, 11102, 1113, and 11103 respectively to conduct closing operation training. The process will be accompanied by the closing energy storage sound effect. The lines in the display screens corresponding to the several switches before the closing operation are all green and not closed. After the closing operation, you can find that the corresponding line status changes to the red closed state, indicating that the power supply of the circuit is restored. After the operation is completed, close the electrical cabinet. Door.
GIS room control cabinet interactive training
Control cabinet introduction
The control cabinet in the GIS room refers to the control cabinet installed in the high-voltage gas insulated switchgear (GIS) room for local control of gas equipment, power equipment, relay protection equipment and other equipment lines. The main function is to realize the control of these equipment. It includes various operation buttons, displays, instruments and control signal interfaces to facilitate the operator to connect and disconnect the equipment.
Opening operation
By default, 1022, 102, and 1023 are in the closed connection state. Open the electrical cabinet door, and click the switch knobs No. 1022, 102, and 1023 respectively to conduct opening operation training, accompanied by the opening sound effect. The corresponding display in the middle right before the opening operation If the red indicator light indicating the closed status of the line is on, perform the opening operation on it, you will find that the red indicator light on the display screen of the corresponding line changes to the green indicator light on the right indicating the disconnected status of the line. After the operation is completed, close the electrical cabinet door.
10kV room switch cabinet interactive training
Introduction to switch cabinet
The 10kV room switch cabinet is a medium-voltage indoor switchgear used in power distribution systems. It is used to control and protect the power supply and distribution equipment of the 10kV power grid. It includes various switches, protection devices, instruments and control signal interfaces. It is convenient for operators to operate and monitor 10kV power distribution equipment. It has five common operating functions, including the function of connecting and disconnecting the power supply circuit of the 10kV power grid, and the function of controlling and adjusting the load switch status to realize power grid overload, short circuit, It has protection functions such as grounding, fault diagnosis and fault information display functions, and the function of detecting grid voltage, current, frequency and other parameters. The functions are realized and displayed through different types of switch operations.
The switch of the 10kV room switch cabinet is used to connect and cut off the power circuit, control the load switch status, and has realized the protection function; the branch circuit breaker (opening/closing switch): is used to cut off or connect the 10kV power circuit, and it has the ability to disconnect the load current And the ability to provide overload protection; remote/local switch: The operating status of the switch is controlled through remote signals. Only when the knob is turned to local, other switches can be operated.
Model diagram:
Opening operation
1. Normal operation: The remote local knob is on the left, the opening and closing knob is in the center, the test position indicator light is off, the working position indicator light is on, the energy storage indicator light is on, the opening indicator light is off, and the closing indicator light is on.
2. Opening operation: Turn the remote local knob to the left, turn it to the left for remote, and turn it right for local. After turning it to the right, other operations are valid; turn the opening and closing knob to the left, the energy storage indicator light goes out, and the closing indicator light goes out. Turn it left to store energy. After the button bounces back, the energy storage indicator light turns on, the opening indicator light turns on, and the closing indicator light turns off; after the trolley is pushed out, the test position indicator light turns on, the working position indicator light turns off, and the opening and closing indicator light turns off when the opening knob is pressed.
3. Cold standby state: The remote local knob is on the left, the opening and closing knob is in the center, the test position indicator light, energy storage indicator light, and opening indicator light are on, and the working position indicator light and closing indicator light are off.
4. Closing operation: The trolley advances, the test position indicator light and the closing indicator light go out, the working position indicator light, the energy storage indicator light, and the opening indicator light turn on. Turn the opening and closing knob to rebound, and the energy storage indicator light goes out. Turn the After the energy storage button bounces back, the energy storage indicator light turns on, the opening indicator light goes out, and the closing indicator light turns on.
VR accident simulation
As a particularly critical component of the power system, substations can effectively avoid serious consequences such as power supply interruption, equipment damage, or casualties after an accident occurs. Using VR technology for accident simulation can improve substation operators' ability to prepare for accidents and emergency response levels, and is a very effective low-cost training method. VR accident simulation is suitable for various types of substation accidents, such as fire, arc fault, short circuit, etc., covering various electrical equipment and safety management situations.
Based on Tupu's self-developed HT, lightweight modeling and three-dimensional scene construction technology are used to create a highly realistic virtual substation environment including in-station equipment, cables, switches and many other elements, allowing employees to become familiar with various accident scenarios through the virtual environment and learn to correctly operating procedures and processing methods to improve story coping skills and self-confidence. The basic process is: check the status of switch cabinets and electrical cabinets in each room - find the cause of the fault - perform troubleshooting - restore power supply.
Line Ⅰ Line Trip Accident Simulation
A tripping accident of the electrical cabinet on Line I of the external switch station was simulated. The staff used VR equipment to conduct accident investigation and troubleshooting drills on the electrical cabinet on the line. The specific operation is: check the circuit condition of the 110kV switch room, and find that the I line switch cabinet of the external switch station is faulty. Open the cabinet door to perform troubleshooting simulation: close switches 1121, 112, and 1123 in the cabinet, and the closing can be heard. Sound effect, close the cabinet door, then restore power, troubleshooting.
Taking the simulated tripping accident report of line I as an example, the simulation training process of tripping accidents of other lines is similar to it.
Simulation of tripping accident of the first main transformer
A tripping accident occurred in the electrical cabinet associated with the first main transformer in the simulated substation. The staff used VR equipment to conduct accident investigation and troubleshooting drills on the electrical cabinet associated with the transformer. The specific operation is: check the status of the GIS indoor main transformer cabinet. It is found that the switches 1011, 101, and 1013 of the control cabinet are open. Operate the handle to open the cabinet door. Close the three switches. The closing sound effect can be heard. Close the cabinet door. Afterwards, the power supply was restored and the fault was rectified.
Taking the simulation of the first main transformer trip accident as an example, the simulation training process of other main transformer trip accidents is similar to it.
Tupu HT can also easily build VR virtual scenes for more industries, realize virtualization of real scenes, and support a series of operations that can be done in real scenes, without having to bear the consequences of dangerous actions in real situations, and without having to worry about the mouse. , heterogeneous interfaces for touch screens and VR. It supports the provision of personalized VR application solutions based on the detailed needs of enterprises, improving user experience, and a more efficient and secure intelligent training platform.
Substation VR visualization advantages
- Improve work efficiency and safety: Through VR technology, workers in the power and energy industry can conduct training and simulated operations in a virtual environment, improving work efficiency and reducing the risk of accidents.
- Reduce costs and risks: VR technology can reduce costs and risks by reducing the need for on-site surveys and construction.
- Improve user experience: VR technology can provide users with a more intuitive and realistic experience, thereby increasing user satisfaction and loyalty.
As a high-tech enterprise that insists on independent innovation, Tupu Software not only provides BIM, GIS, XR, MR, 2D configuration, 3D configuration and other Web visualization application solutions. It also provides VR/AR visualization technology to customize different industrial application scenarios to help various industrial companies better achieve their business goals, including equipment maintenance and troubleshooting, safety training and drills, product display and sales, etc., and consolidate the industrial foundation. Training and training help various industrial systems move towards new management models.