Key challenges in offshore wind engineering

Complex load conditions: Offshore wind turbines are subject to a variety of complex load conditions due to wind, waves, currents, tides as well as grid-induced loads. For floating turbines, the movement of the support structure adds an additional layer of complexity. These dynamic load conditions can lead to significant stress on the turbine structure and components.

Aero-hydro-elastic response: The interaction between aerodynamic forces from the wind and hydrodynamic forces from the water creates unique challenges for floating wind turbines. These interactions must be accurately modeled to ensure stability and efficiency.

Motion of floating platforms: The floating platforms experience pitch, roll, and heave motions, which affect the turbine’s alignment with the wind and impact its performance and structural integrity.

Mooring systems and cable dynamics: The cables that anchor floating platforms to the seabed and connect the turbines to each other and to the grid are subject to environmental loads, which can lead to wear and fatigue.

Control system complexity: Ensuring that the turbines operate efficiently and safely in variable and harsh offshore conditions requires sophisticated control systems. These systems must adapt to the changing environmental conditions and the specific dynamics of floating platforms.

The importance of specialized skills

Addressing these challenges requires more than traditional engineering expertise; it demands specialized skills and innovative problem-solving.

Firstly, due to the unique environmental challenges of offshore wind and secondly, due to the intricacies of control systems which in these settings require a high level of adaptation and optimizations to maintain efficiency. Moreover, in an industry where operational costs are a major concern, skilled engineers can devise strategies to extend the lifespan of turbines, reduce maintenance frequency, and enhance overall efficiency – all contributing to a more economically viable operation.

Some of the solutions you can apply if you have the right expertise involves the following areas:

Advanced modeling and simulation: Employing aero-servo-hydro-elastic modeling techniques at the relevant level of fidelity helps in predicting and managing the complex interactions between the wind, waves, and floating structures. This modeling is crucial for both the design and operation of the turbines.

Robust design: Developing robust turbine designs that can withstand harsh marine conditions. This includes reinforced structures and components that can tolerate the additional stresses experienced in the offshore environment.

Active control systems: Implementing advanced control systems that can actively adjust to the motion of the floating platform and changing environmental conditions. These systems can optimize the alignment of the turbine with the wind and manage loads effectively.

Durable mooring and cable systems: Designing mooring and cable systems that are durable and can withstand the dynamic loads. This may include selecting materials that are resistant to corrosion and fatigue and designing the layout to minimize wear.

Maintenance and monitoring: Regular maintenance and continuous monitoring of turbine performance and structural integrity are vital. This includes using sensors and remote monitoring technologies to detect and address issues early.

Collaboration with marine engineering: Collaborating with experts in marine engineering and hydrodynamics can lead to innovative designs and solutions that are specifically tailored to the challenges of floating wind farms.

Your partner in offshore wind engineering

At DIS/CREADIS, we specialize in addressing these offshore challenges. With advanced capabilities in wind energy engineering, particularly for floating offshore structures and systems, we offer a partnership that navigates the intricacies of offshore wind farms. From comprehensive load analysis and control to tailored solutions for each project, we can help ensure that your turbines are not just operating, but also economically viable and efficient.

Discover more about DIS/CREADIS’s wind energy solutions here.