ToF Ranging Method Wind Measurement Lidar Featuring 100Klux Ambient Light

Product Description:

The Molas CL tower clearance lidar is a specialized device designed to continuously monitor the clearance distance at the tip of the blades in real time. Its primary function is to ensure that the distance between the blade tip and the tower remains within safe limits during operation.

When the measured blade clearance approaches the predefined minimum threshold, the main controller of the fan unit is triggered to take immediate protective actions. These measures can include reducing the rotational speed or retracting the blades to avoid any potential collision with the tower.

Implementing the tower clearance lidar on existing units offers several benefits. It helps prevent tower strikes, allowing operators to safely increase the power output of units that were previously limited due to clearance concerns. This enhancement leads to greater overall power generation efficiency.

Moreover, incorporating this technology into future units can contribute to cost savings by reducing the expenses associated with blade manufacturing. It also alleviates some of the design constraints and structural pressures on the units, enabling more optimized and reliable turbine designs.

Features:

• Product Name: Wind Measurement Lidar
• Measurement Accuracy: ±0.2m
• Repeated Measurement Accuracy: ±0.2m
• Working Acceleration Range: -0.5g to 0.5g
• Repeat Frequency: 20KHz per channel
• Range of Working Temperature: -40°C to +60°C
• Ideal for remote wind measurement applications
• Suitable for onshore wind lidar projects
• Available for flexible lidar rental solutions

Technical Parameters:

Applications:

The Molas CL tower clearance lidar serves three fundamental application scenarios designed to enhance the safety and efficiency of wind turbine operations. The first scenario is single point precise feedback . In this mode, the lidar system continuously targets a specific fixed position at the blade tip, providing highly accurate and instantaneous clearance distance measurements to the main controller. This precise data forms the essential foundation for all subsequent monitoring and control decisions, ensuring reliability and accuracy in real-time.

The second application is threshold detection . The system is programmed with a predefined minimum safe clearance threshold. Whenever the measured clearance approaches or drops below this critical limit, an immediate alarm is triggered. This prompts the controller to initiate protective actions such as slowing down the rotor, adjusting blade pitch, or executing an emergency shutdown to prevent possible collisions with the tower structure. This mechanism acts as a crucial safeguard against tower strikes, maintaining turbine integrity and operator safety.

The third scenario involves trend detection . Beyond simply monitoring instantaneous clearance values, the lidar analyzes the rate and direction of change over time. By forecasting potential risks several seconds in advance, this predictive capability allows the main controller to implement gentle, proactive mitigation strategies. These measures help avoid sudden or harsh load changes, preserving turbine performance and durability.

Together, these three application scenarios operate in harmony. The precise feedback supplies the raw, accurate data; threshold detection provides immediate defensive responses; and trend detection delivers early warning intelligence for proactive decision-making. This comprehensive safety loop enables a seamless process of “seeing,” “judging,” and “anticipating.” For existing turbines, it facilitates safely removing derating limits and boosting annual energy production. For future turbine designs, it allows for reductions in blade length and tower stiffness requirements, ultimately decreasing blade manufacturing costs and overall design stresses.