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Research Group

Control, Optimisation and Monitoring

Merging Control and System Design for Next-Generation Control Strategies

The control strategies form the brain of the wind turbine and thus have a major influence on its behaviour in daily operation. They significantly influence structural loads and performance quality. The working group "Control, Optimisation and Monitoring" deals with the design of these control strategies taking into account the entire wind turbine system. The research objectives include the stabilisation of floating wind turbines, load reduction and lifetime extension.


Focus Areas


The aim of the baseline controller development is to guarantee safe operation of the wind turbine in all ambient conditions while maintaining the highest possible energy yield with controllable structural loads. Only conventional measuring methods are used for the basic controllers, which are available to the controller and the operational management in all modern wind turbines. The systematic process of controller design takes into account the system response of the entire wind turbine system.

The lidar-assisted control combines SWE's expertise in lidarm measurement technology with controller development. Lidar measurements are used for pre-control of the collective blade angle, which leads to large load reductions. With the Lidar system developed at SWE, this technology could be successfully tested for the first time worldwide together with the US-American research institute NREL.

Compared to onshore wind turbines, the control of floating turbines poses greater challenges. The interaction of wave loads with the soft supporting structure can lead to critical instabilities.

Together with the working group Concept Design and System Simulation, reduced nonlinear and linearized models for floating wind turbines are developed, which are used in model-based predictive controllers as well as for the design of parameterized controllers for the structural optimization of floating turbines.


In addition to controlling the individual wind turbines, the wind farm control system aims to maximize the energy yield of the entire wind farm. Techniques such as wake-deflection are used for this purpose. Lidar measurements can also be used in this area, for example to locate the wake centre.

Team ROM



Team: Control, Optimisation and Monitoring

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