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Nacelle-Mounted Laser Wind Measurement LiDAR
Category :
Meteorological Radar
Keyword :
Nacelle-Mounted Laser Wind Measurement LiDAR
Product Introduction:
This nacelle-mounted wind LiDAR is independently developed for intelligent application solutions serving wind power customers. Installed on the top of wind turbine nacelles, the radar adopts coherent detection technology based on the laser Doppler shift principle to realize forward remote sensing measurement of wind vectors, enabling feedforward control of the wind turbine main control system.
Product Parameters:
I.Technical Parameters
| Parameter | Specification |
|---|---|
| Core Measurement Performance | |
| Measurement Range | 50 ~ 400m |
| Number of Range Gates | 10 |
| Effective Measurement Frequency | 4Hz |
| Wind Speed Measurement Range | 0 ~ 50m/s |
| Wind Speed Measurement Accuracy | 0.1m/s |
| Wind Direction Measurement Range | -180 ~ 180° |
| Wind Direction Measurement Accuracy | 0.5° |
| Optical System | |
| Laser Type | Pulsed Wave |
| Beam Configuration | 4 beams, 30° horizontal angle, 10° vertical angle |
| Environmental Protection & Adaptability | |
| Radar Enclosure Protection Rating | IP66 |
| Control Cabinet Protection Rating | IP54 |
| Corrosion Resistance Rating | ISO C5 |
| Operating Temperature | -40 ~ 60℃ |
| Storage Temperature | -40 ~ 65℃ |
| Survival Wind Speed | 70m/s |
| Communication Interface | |
| Communication Protocol & Interface | CanOpen (DB9), Modbus (RJ45) |
| Physical Specifications | |
| Radar Enclosure Weight | ≤19kg |
| Control Cabinet Weight | ≤8kg |
| Radar Enclosure Dimensions | 300×490×225mm |
| Control Cabinet Dimensions | 360×110×300mm |
| Service Life | |
| Design Service Life | ≥5 years |
II. Working Principle
1. Forward Remote Wind Sensing for Predictive Data Acquisition
Based on the laser Doppler shift principle and coherent detection technology, the LiDAR performs forward remote sensing of wind vectors ahead of the rotor. Unlike traditional passive wind measurement, it captures upcoming wind conditions in advance, eliminates measurement delay and data deviation, and enables sufficient lead time for turbine predictive regulation.
2. High-Precision Wind Vector Sensing for Intelligent Turbine Regulation
With high-precision coherent detection algorithms, the device acquires real-time multi-dimensional wind vector data (wind speed and direction). It accurately reproduces actual and complex wind field characteristics at the rotor swept area, providing reliable and high-fidelity data for wind turbine intelligent operation.
3. Feedforward Intelligent Control for Optimized Unit Operation Logic
The LiDAR transmits real-time preview wind data to the turbine main control system to realize precise feedforward control. It proactively adjusts blade pitch and nacelle yaw according to incoming wind variations, replacing conventional delayed feedback control and effectively alleviating the impact of gusts and turbulence on turbine units.
4. Nacelle Integrated Installation with Strong Adaptability and Compatibility
Designed for rooftop nacelle installation, the LiDAR is compatible with mainstream wind turbine models. It features compact structure and plug-and-play deployment without modifying original turbine equipment, fitting for both new wind farms and unit retrofits with no interference to original turbine performance.
III. Product Applications and Functional Characteristics
Product Applications:
1. Improve Power Generation Efficiency of Wind Turbines
Enabled by real-time forward wind sensing and feedforward intelligent regulation, turbines always operate at optimal states and adapt dynamically to fluctuating wind fields. The device improves wind energy utilization ratio, reduces energy loss, and effectively boosts overall wind farm power generation efficiency and output.
2. Reduce Operation and Maintenance Losses of Turbine Units
The system achieves pre-judged regulation against gusts, sudden wind direction shifts and turbulence. It reduces dynamic impact and fatigue load on blades, gearboxes and main shafts, lowering failure rates, extending service life and cutting wind farm O&M and downtime costs.
3. Support the Construction of Intelligent Wind Farms
As a key intelligent sensing device for wind farms, it supports smart and unattended wind farm construction. It provides solid data support for intelligent turbine control, big data analysis and refined operation scheduling, promoting the intelligent and efficient upgrading of wind power operation.
4. Adapt to Operation Under Complex Wind Field Conditions
Featuring stable high-precision remote sensing capability, the LiDAR adapts to complex wind conditions of mountainous, hilly and coastal wind farms. It solves data distortion and control lag issues of traditional wind measurement devices, ensuring safe, stable and efficient turbine operation under harsh and turbulent wind fields.
Teaching System
