The history of lidar-assisted control

Research and testing of lidar-assisted control started at University of Stuttgart in 2008 and since then experience on advanced control technologies involving processed lidar measurements has been built up. David Schlipf, head of the Lidar Technology at sowento, has played an important role in the evolution and development of lidar in wind energy applications. Through his research and leading activities in the IEA Wind Task 32, he made his research results public to a broad community and build up a worldwide network. His pioneering work in the field of lidar-assisted control has shaped sowento and is a key business of the company.

Using Lidars for Wind Energy Control

Current advances in lidar technology provide opportunities to take a fresh look at wind turbine control. The wind is not only the main energy source but also the major disturbance to the control system. Thus, knowledge of the incoming wind is valuable information for optimizing energy production and reducing structural loads. Due to the measurement principles and the complexity of the wind, the disturbance cannot be measured perfectly. This forms a challenging task for estimation and control.

The early beginning of lidar-assisted control

We started our investigations in this area in 2008 within national and European research projects to reduce the structural loads and also to increase the energy yield of wind turbines, both of which make wind energy more competitive. The key challenges have not only been to develop appropriate feedforward control methods applicable to an industrial feedback controller, but also to investigate turbulence characteristics and to derive lidar measurements techniques to provide a usable preview signal. The combination of these findings made the world’s first proof-of-concept of lidar-assisted control possible:

  • Field Testing 2012 together with NREL on the CART3 at NWTC using a commercial lidar system (pulsed, 3 Beams).
  • Field Testing 2012 together with NREL on the CART2 at NWTC using the scanning lidar system developed at SWE.

Advanced field-testing of lidar-assisted control

Since then we refined our experience in several other campaigns:

  • Field Testing 2013 on a commercial wind turbine together with KENERSYS using the scanning lidar system developed at SWE.
  • Field Testing 2013 on the CART3 together with DNV GL, NREL and ZephIR using a continuous-wave lidar system.
  • Field Testing 2015 on the CART2 together with NREL and Avent using a commercial lidar system (pulsed, 5 beams).
  • Field Testing 2018-2019 with Goldwind

If you are interested in our lidar-assisted control expertise, please contact us.

Book a meeting to learn more and to discuss your project need

Contact us for your specific request

sowento experts are available to discuss your specific request and tailor our service offer to your needs. Continuously, we expand our knowhow to be able to provide every project with the best mix of expert knowledge and industrial experience.

Related Services

Coupled Design Load Simulations

We make our experience from various engineering projects, as well as high-level European research projects like H2020-LIFES50+ your benefit. We use tailored multi-fidelity tools, adapted to the design stage and engineering question at hand. We

Read More »

Lidar control simulation study

The sowento engineers will demonstrate the benefits of lidar-assisted control on the OEM’s wind turbine and give advise in possible improvements of the total control strategy. The lidar system is realistically simulated (with availability, blade

Read More »

Lidar data processing service

Over the last decade we have been involved in the development of lidar use cases in wind energy. Though the leading role in the IEA Wind Task 32 and our research activities at University of

Read More »

Lidar control cost benefit analysis

In an analysis project sowento’s team will perform a detailed analysis and simulation study to answer the main questions in introducing lidar-assisted control for a wind turbine. Depending on the clients needs sowento controllers will

Read More »

Owners Engineering

We make our experience from various engineering projects, as well as high-level European research projects like H2020-LIFES50+ your benefit. Our knowledge of critical loading conditions, controller tuning and modeling approaches helps to identify possible shortcomings

Read More »

Lidar control controller design

Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea

Read More »

Book a meeting

We provide a range of wind energy consultancy services, let’s discuss your project request. 

We will then connect you with our experts to go ahead.

1-on-1 meeting with Steffen

"I am happy to schedule a meeting with you to discuss your request."

Thank you!

Your message was successfully sent. You will hear from us shortly.