Smart grid online monitoring system
2021-05-24
1136
The main components of smart grid online monitoring system include: infrared temperature diagnosis system, infrared thermal imaging perimeter prevention alarm system, distribution room SF6 monitoring system, cable channel gas monitoring system, etc.
1）Infrared temperature diagnosis system
This system organically combines temperature measuring infrared thermal imager and common visible light camera system, which can realize online precise temperature monitoring of substation equipment, and has the functions of automatic inspection, automatic warning, remote control, manual temperature measurement, trend analysis, report management, etc. The system combines image monitoring, intelligent inspection system, and applies the world's leading infrared thermal imager and accurate temperature measurement technology to realize thermal fault diagnosis of power equipment.
2）Infrared thermal imaging perimeter prevention alarm system
The system uses a thermal imaging camera with excellent image processing algorithms, through AGC automatic gain, DDE image detail enhancement, 3D noise reduction technology, all-weather to ensure excellent image effects, effective detection and imaging of monitoring scenes, to obtain key detection information in the image. At the same time, based on dual-spectrum design, in the thermal imaging all-weather detection at the same time, but also the visible light imaging effect of the star-grade ultra-low-light camera, once the event, visible light can use the coaxial positioning function of the scene to confirm the situation, push the alarm, and can record the alarm video.
Equipped with thermal imaging perimeter/area intrusion alarm system can effectively avoid the influence of the environment on the perimeter prevention and alarm the intrusion event with low false alarm rate.
3）SF6 monitoring system for power distribution room
The system is a comprehensive monitoring and alarm system for online real-time monitoring of SF6 gas concentration, oxygen content and temperature and humidity in the environment, with fan linkage control and monitoring data uploading to the monitoring center's main platform function. To ensure the personal safety of site inspection staff and the safe operation of SF6 electrical equipment.
4）Cable channel gas monitoring system
The system mainly detects the concentration monitoring of oxygen, carbon monoxide, hydrogen sulfide, methane or other flammable and explosive gases in the cable channel.
1 Infrared temperature diagnosis system
1.1 Real-time online temperature measurement
Support real-time temperature analysis and diagnosis according to the shape of the temperature measurement object (part)；
Support real-time video comprehensive arbitrary object (part) of accurate temperature measurement and analysis；
The full screen automatically captures the highest temperature, lowest temperature, or multiple target points within a specified temperature range, and measures the temperature of the target point at the same time；
Full-screen arbitrary selection of single or multiple temperature measurement object area for temperature, temperature difference, line temperature, temperature field distribution, maximum sustained load overheating temperature analysis, etc.；
Full screen support mouse movement point real-time temperature measurement；
Full-screen multi-point simultaneous temperature measurement；
Select any line in the whole screen for temperature analysis, and display the highest and lowest temperature and average temperature on the line；
1.2 Temperature diagnosis and alarm linkage
Automatic analysis and acquisition function, according to the threshold value set by the user, the initial diagnosis and analysis, set the trigger conditions, automatic/manual infrared image shooting and playback recording；
Equipment thermal failure typical infrared image library management functions, typical failure image information library of the image and its corresponding auxiliary information to add, delete, modify and query, daily collection of images and information database of the image and its corresponding auxiliary information to delete, modify and query；
Support normalization of equipment fault diagnosis temperature by detecting environmental data commutation to improve the accuracy of fault diagnosis.
1.3 Automatic temperature measurement inspection
Automatic inspection means that the system has the function of automatic video inspection and image inspection of the monitoring points of the whole station within the settable interval, and the objects participating in the round inspection can be set arbitrarily to realize automatic inspection, precise temperature measurement, intelligent diagnosis and automatic alarm according to the pre-calibrated testing equipment and lines, so as to realize the combination of precise temperature measurement and general temperature measurement and achieve full coverage inspection of substations and power plants.
1.4 Remote control of temperature measurement management
Main functions：
Remote control of infrared surveillance equipment (including heads, lenses, etc.)；
Remote setting of infrared alarm parameters, such as monitoring location, alarm temperature, alarm target, temperature difference alarm, etc.；
Remote setting of IR system automatic tour inspection time, inspection strategy, etc.；
Remote equipment temperature field distribution monitoring and control, you can determine the equipment temperature field distribution monitoring strategy in advance, and the system will automatically monitor the equipment temperature field distribution according to the developed strategy; you can also monitor and control the equipment temperature field distribution through the electronic map.
2 Infrared thermal imaging perimeter prevention alarm system
2.1 Crossing the cordon
Set the corresponding warning line in the screen, when an object crosses the warning line, it will trigger the crossing warning line report
Alarm rules, the thermal imaging camera will immediately send an alarm signal, and linkage visible light zoom to confirm the target, while the PTZ rotates to track the target.
2.2 Access area
Set the corresponding alert area in the screen, when an object crosses the border of the alert area and enters the alert area, it will trigger the alarm rule of entering the area, the thermal imaging camera will immediately send out an alarm signal, link the visible zoom to confirm the target, and at the same time the PTZ rotates to track the target.
2.3 Leaving the area
Set the corresponding warning area in the screen, when an object crosses the border of the warning area and leaves the warning area, it will trigger the alarm rule of leaving the area, the thermal imaging camera will immediately send out an alarm signal, link the visible zoom to confirm the target, and at the same time the PTZ rotates to track the target.
Set the corresponding alert area in the screen, when an object enters the alert area and wanders or stays in the area, it will trigger the area intrusion alarm rules, the thermal imaging camera will immediately issue an alarm signal, linkage visible light zoom to confirm the target, while the PTZ rotates to track the target.
3.1 System topology
The SF6 gas concentration exceeds the standard detection: display the SF6 gas content situation at each gas sensor, when the SF6 gas concentration exceeds 800ppm, the content exceeds the standard.
Oxygen concentration detection: Displays the oxygen concentration value at each gas sensor in the switch room.
Temperature and humidity detection: The system can measure and display the current temperature value and humidity value in the switch room.
Display the time when the fan was last started and stopped: staff can use this information to determine whether forced ventilation is needed before entering the switch room.
Infrared detection function: the system can detect staff who want to enter the switch room.
Forced ventilation: When the fan is in the stopped state, pressing the forced button, the system can perform forced ventilation for 15 minutes.
Oxygen deficiency alarm: When the oxygen concentration is lower than 18%, the contact alarm signal is output and live voice alarm is made.
Fan control time: When the SF6 gas content exceeds the standard (≥800ppm) or the oxygen concentration is too low (≤18%), the control fan starts ventilation, and each ventilation time is at least 15 minutes.
Timed ventilation: The system can set the fan to start and stop at regular intervals every day to ensure that the switch room is ventilated at least once a day.
