Product Description:

The Molas CL tower clearance lidar is a specialized lidar system designed to continuously monitor the clearance distance between the blade tip and the tower in real time. This technology ensures precise measurement of the blade clearance, which is critical for the safe operation of wind turbines.

When the measured blade clearance approaches the predefined minimum safety limit, the main controller of the fan unit can promptly implement protective actions. These measures may include reducing the rotational speed or retracting the blades to prevent any potential contact or damage.

Integrating the tower clearance lidar into existing wind turbine units helps to avoid tower strikes, thereby allowing these units to operate beyond previously established power limits safely. This not only prevents damage but also enhances the overall power generation efficiency.

For future turbine designs, the use of tower clearance lidar can contribute to lowering blade manufacturing costs and reducing the structural design constraints on the units. By improving safety margins and operational flexibility, this technology supports the development of more efficient and cost-effective wind energy solutions.

Features:

• Product Name: Wind Measurement Lidar
• Operating Humidity Range: 0%~100% RH, suitable for all meteorological phenomena
• Beam 3 Angle: 4.09° ± 0.2° for precise wind detection
• Detection Distance: 300m @ 10% Reflectivity, ideal for low altitude economy applications
• Ambient Light Resistance: 100Klux, ensures accurate measurements under strong light conditions
• Distance Resolution: ≤0.1m, providing detailed 3D scanning Doppler data
• Advanced 3D Scanning Doppler technology for comprehensive wind profiling

Technical Parameters:

Applications:

The Molas CL tower clearance lidar is designed to address three essential application scenarios that ensure the safe operation of wind turbines. Firstly, it provides single point precise feedback by continuously focusing on a specific spatial point at the blade tip. This approach delivers highly accurate, instantaneous clearance distance data directly to the main controller. Such precise measurements guarantee that every data point is dependable and form the critical basis for all subsequent control decisions.

Secondly, the system incorporates threshold detection , where a minimum safe clearance limit is predefined within the controller. Whenever the measured clearance distance nears or crosses this threshold, an immediate alarm is triggered. Subsequently, the controller initiates protective actions such as slowing down the rotor, adjusting the blade pitch, or executing an emergency shutdown. These timely interventions play a vital role in effectively preventing any potential tower strikes.

Thirdly, the lidar includes trend detection capabilities, which go beyond monitoring just the current clearance value. It analyzes how the clearance distance changes over time—considering both the rate and direction of these changes. This predictive insight allows the system to foresee possible risks in the upcoming seconds. As a result, the main controller can implement gentle, proactive mitigation strategies that help avoid sudden and severe load variations on the turbine.

Together, these three application scenarios operate in harmony: precise feedback supplies the fundamental data, threshold detection provides immediate defensive responses, and trend detection delivers early warning intelligence. This comprehensive safety loop enables the system to effectively “see,” “judge,” and “anticipate” potential hazards. For existing turbines, this means derating limits can be safely relaxed to boost annual energy production. For new turbine designs, it supports reductions in blade length and tower stiffness requirements, ultimately cutting blade manufacturing costs and easing overall structural design demands.