Retrofit open-source Control System
Combining the advantages of an open source control system with the Windar Photonics LiDAR results in unprecedented AEP gains and load reductions.
The system solution is intended as a retrofit solution for the utility market - specifically for wind turbines in the range of 0.6MW to 2.5MW not covered by warranty. The general idea behind the system solution is to combine the separate optimization advantages of the control system technology with the Lidar technology into one complete retrofit solution.
Yaw misalignment can be reduced by integrating the LiDAR with the control system, which will significantly reduce loads on the turbine and yield an AEP increase of 1.5% to 2%. Further combining the LiDAR integration with the control system retrofit solution will potentially result in AEP gains of up to 4% to 5%. The further increase in AEP, compared with just integrating the LiDAR with the control system, is due to the system solutions' anticipatory pitch function that reduces power production spikes.
The combination of the yaw correction and anticipatory pitch functions will also significantly reduce damaging loads on the wind turbine, hence enhancing the longevity of the asset and reduce maintenance costs. By applying the system solution, the turbine's yaw and pitch strategies will be revised and adjusted according to the newest industry standards and methods to ensure a continuous revenue stream from the asset - both now and in the future.
Customizable Open-Source Software
As the software is open source, all standard application software and codes are transferred to the customer. Furthermore, due to the open source nature of the system solution’s software, it is possible to customize it according to the client's specifications and operational requirements. Hence, during the commissioning period of the pilot turbine, most alarm settings will be determined in cooperation with the
Tried and True Hardware
On the technical level, the system solution offers a high degree of flexibility due to its open source software, while still being based on tried and true hardware that is running in over a thousand wind
Pitching and Power Spikes Explained
This is demonstrated in the above diagram, which shows the instantaneous maximum and minimum recorded on a wind turbine during 10-minute periods. This is a plot of actual data, which has been nondimensionalized to a rated power of 1. The “hunting” action described above results in a rounding of the shape of the upper knee of the power performance curve. The rounding translates into available energy that is not captured.
Increasing the power gain
The below illustration displays the hardware setup of the retrofit sontrol system integrated with the WindEYE ™ :
|WindEYE 2-Beam Yaw Optimization System|
|Retrofit open-source Control System|
|4-Beam Yaw and Pitch Optimization System|
|Return of Investment|
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