Molas - Model NL -Nacelle-Based Wind Lidar
Molas NL is a nacelle-based wind lidar which is independently developed by Nanjing Movelaser for wind power customers` intelligent application solutions. It is a remote sensing laser device which can be installed above the wind turbine nacelle. It uses a coherent detection system based on the principle of laser Doppler frequency shift to achieve an accurate measurement of the wind vector field from the top of the nacelle to the front tens of to several hundred meters ahead of turbine rotor.
Molas NL measures and records wind data information of 400 m in front of wind turbines. After it`s connected to the main control system of the wind turbine, it can realize the functions in a variety of automated operating scenarios such as yaw control, load optimization, power curve test and so on.
- Real front wind measurement
- Data transmission and local storage
- Accuracy up to 0.1m/s and 0.5°
- High sampling rate: 4Hz
- Multiple distance layers: simultaneous measurement of 10 user-defined distance layers
- Large range: measure distance up to 400m to meet diverse needs
- Four beams: covers rotor surface to achieve 3D measurement
- Intelligent configuration: flexible wireless connection to achieve intelligent remote control
- Maintenance-free: no consumables, no wearing parts, no maintenance during the entire life cycle
- High applicability: full temperature range and environmental conditions
- High compatibility: universal data interface and installation interface for wind power
- Yaw control
- Calibrate yaw error to increase the AEP of the wind turbine by approximately 2% to 4%
- Assisted control of Wind Turbine
- Reduce wind turbine fatigue load by more than 5%
- Reduce wind turbine costs by 5% to 10%
- Blade load analysis
- Reduce wind rotor load and extend wind turbine life
- Reduce wind turbine fatigue load by more than 10%
- Power curve test
- Realize remote sensing of the wind farm at 2.5D in front of the wind rotor
- Reduce power curve test error
