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Wind Turbine Eye - Use radar to protect the safety of wind turbines!

"Alert! The blades are too close to the tower, and there is a risk of sweeping the tower!"

At 17:22:22 on December 11, the "Beidou + Microwave Radar Wind Turbine Safety Monitoring System" issued an alarm. The blade clearance (minimum distance between the blades and the tower) of a wind turbine in a mountain wind farm monitored by the system was too small, and there was a risk of sweeping the tower.

"It happened to be a heavy fog at the wind farm at that time, and optical image photogrammetry and lidar were unable to work normally. The three technologies of Beidou high-precision measurement, millimeter-wave radar, and audio recognition were not affected by heavy fog due to their unique physical characteristics. interference, so the monitoring and early warning of the center point of the tower, the safe distance between the blades and the tower, and the health of the blades are realized."

——A person in charge at the customer site

On June 10, 2023, a wind turbine collapsed at a wind farm in Yanjin, Henan;
On April 11, 2023, a wind turbine tower collapse accident occurred at a wind farm in Huang County, Henan Province.
Industry insiders estimate that the direct economic loss from the tower collapse accident is around 25 million to 30 million, while the loss from shutdown or power limitation due to the investigation of the wind farm accident is expected to reach 30 million.

In recent years, accidents such as wind turbine tower collapse and blade sweeping have continued to enter our field of vision. Accidents not only cause huge economic losses, but also bring serious safety hazards and liabilities. To this end, Nanoradar Technology has used technological innovation to create a wind turbine safety monitoring system based on millimeter wave radar to protect the safety of wind turbines .

Customer pain points

Traditional monitoring methods have disadvantages such as high cost (arrangement of strain gauges, vibration sensors, fiber Bragg grating sensors, lidar, etc.), difficulty in operation and maintenance, and large environmental interference. Especially in bad weather such as heavy fog and heavy snow, monitoring is difficult. The performance will be greatly reduced, and it is easy to cause accidents such as the wind turbine toppling over and the blades sweeping the tower.

Millimeter wave radar based solutions

It adopts millimeter-wave radar dynamic ranging technology to monitor the distance between the blades and the tower in real time. It has high accuracy, high spatial resolution and strong anti-interference ability. It can work in environments such as haze, dust, rain and snow, and provides 24-hour early warning for tower scanning. risk.
The system records the operation trajectory of each blade across the radar measurement area through monitoring data. It can also monitor the deviation of the blade's operation data in real time, automatically determine and identify blades that deviate from the normal trajectory range, and avoid vibration and power generation losses caused by aerodynamic imbalance of the blades. and other negative impacts.

Eye of the Wind Turbine - Nanoradar NRA24 Millimeter wave radar

NRA24 is like the eyes of the wind turbine, obtaining important "intelligence" as soon as possible. Fearless of dark nights and bad weather, the detection range is up to 50/200 meters. It can monitor the distance, angle, and speed of the target in real time, with a maximum accuracy of 0.1m/0.16m. It has lightweight design, small size, high degree of integration, sensitive sensing, and can be worn It can penetrate fog, smoke and dust, effectively ensuring the safety of the fan.

Customer benefits

● Strong environmental adaptability, enabling 24-hour early warning detection of blade clearance and aerodynamic imbalance. 
● Significantly improve the real-time, reliability and accuracy of wind turbine safety monitoring, reduce economic losses and increase economic benefits.