Repeated Measurement Accuracy ±0.2m Wind Power Devices with IP65 Enclosure

Product Description:

The Molas CL tower clearance lidar is a specialized type of lidar system designed to continuously monitor the clearance distance of the blade tip in real time. This advanced technology ensures accurate measurement of the distance between the blade tip and the tower, providing crucial data for operational safety.

When the monitored blade clearance approaches the predetermined minimum threshold, the main controller of the fan unit can promptly initiate protective measures. These actions may include reducing the rotational speed or retracting the blades, thus preventing potential damage and ensuring safe operation.

Implementing tower clearance lidar on existing wind turbine units offers significant benefits. It helps avoid tower strikes, which can lead to costly repairs and downtime. Additionally, this technology allows for raising the power output limits of units previously considered hazardous, thereby enhancing overall power generation efficiency.

For future turbine designs, incorporating tower clearance lidar can lead to substantial cost savings. It can reduce the expense associated with blade manufacturing and alleviate the structural design pressures on the units, contributing to more efficient and economical wind power solutions.

Features:

• Product Name: Wind Measurement Lidar
• Beam 1 Angle: 0°
• Beam 2 Angle: 2.05° ± 0.2°
• Enclosure Rating: IP65 (or According To Specific Needs)
• Repeat Frequency: 20KHz Per Channel
• Wavelength: 905nm
• Designed for accurate onshore wind measurements
• Advanced Wind Lidar Molas 3D technology for precise data acquisition
• Suitable for both onshore and ocean wind measurement applications

Technical Parameters:

Applications:

The Molas CL tower clearance lidar serves three fundamental application scenarios that are essential for maintaining the safe operation of wind turbines. First, it offers single point precise feedback , whereby the lidar continuously focuses on a fixed spatial location at the blade tip. This continuous monitoring delivers highly accurate and instantaneous clearance distance measurements directly to the main controller, ensuring that every data point is trustworthy and forms a solid basis for all subsequent control decisions.

Secondly, the system supports threshold detection . It is pre-set with a minimum safe clearance threshold so that whenever the measured clearance distance approaches or falls below this critical limit, an immediate alarm is triggered. In response, the controller initiates protective actions such as slowing rotor speed, adjusting blade pitch, or performing an emergency shutdown. These measures effectively prevent collisions between the blades and the tower, enhancing overall turbine safety.

Thirdly, the Molas CL lidar incorporates trend detection capabilities. Unlike relying solely on the current clearance value, this functionality analyzes how the clearance distance changes over time, identifying the speed and direction of these changes. By forecasting potential risks seconds in advance, the system enables the main controller to implement proactive and smooth mitigation strategies. This approach avoids sudden, severe load alterations and contributes to the turbine’s operational stability.

Together, these three application scenarios function in harmony. The precise feedback delivers the foundational measurement data, threshold detection provides immediate defensive responses, and trend detection offers advanced early warnings. This integrated safety mechanism encompasses the full spectrum from “seeing” , to “judging” , and finally to “anticipating” . On current turbines, this approach allows for safely lifting derating limits and increasing annual energy production. For future turbine designs, it facilitates reductions in blade length and tower stiffness requirements, ultimately lowering blade manufacturing costs and easing overall design constraints.