Wölfel Wind Systems GmbH & Co. KG
About us
From structural health monitoring including ice detection to dampers for tonalities and vibrations – Wölfel offers proven solutions to increase yield and optimize lifetime extension. We are experts in vibration and signal analysis, provide information on structural damage, lifetime consumption and the associated potential continued operation, monitor material fatigue and help you meet legal requirements in the field of noise emissions.
Address
Max-Planck-Str. 15
97204 Höchberg
Germany
E-mail: info@woelfel.de
Phone: +49 931 497080
Internet: www.woelfel.de/en/
Contact person:
Products & Services
High vibration levels, varying wind speeds or noise emissions – onshore and offshore, a wide variety of areas require professional engineering in order to make the operation of wind turbines (WTG) safe and efficient and to comply with licensing requirements.
With our monitoring systems SHM.Blade®, SHM.App-on Blade and SHM.Tower & Foundation you are best prepared for the topic "continued operation". With exact information about the structural condition, you can achieve a precise asset evaluation and an optimized lifetime extension. The use of AI enables a new dimension of damage detection. We are European market leader in the field of structural monitoring of offshore wind farms and offer customized solutions for foundation monitoring that enable condition-based inspections.
Low-frequency vibrations of the WTG can cause high stresses on the tower and significantly reduce the lifetime of the tower structure. Especially resonant vibrations can be reduced (cost-) effectively by our TMD.Tower dampers. Noise-reduced operation can massively reduce the yields of your wind farm. With ADD.Sound® you minimize tonalities and return to normal operation mode.
SHM.Blade, SHM.App-on Blade: Comprehensive rotor blade monitoring
Rotor blades of wind turbines are exposed to extreme environmental conditions and high dynamic stresses. At the same time they have a decisive influence on energy yield and thus on the economic efficiency of wind turbines. SHM.Blade and SHM.App-on Blade offer comprehensive rotor blade monitoring, including the detection of damage, ice and aerodynamic imbalance. While SHM.Blade integrates hardware and software, the latter is a software-only solution for seamless integration into existing monitoring platforms.
SHM.Tower & Foundation: Early Damage Detection and Optimized Lifetime Extension
The foundation is the load-bearing base of any offshore wind turbine and must withstand extreme environmental stresses such as wind, waves, and currents. Continuous monitoring of this critical component is essential to detect damage and prevent failures at an early stage. With SHM.Tower & Foundation, key parameters such as displacements, deformations, structural stresses, and frequencies are recorded in real time.
The focus is on the detailed analysis of maximum and fatigue loads, the structural condition, and the resulting remaining service life, as well as the wind and wave loads acting on the foundation. This enables the early detection of corrosion, material fatigue, and biofouling.
The collected data provides a solid basis for informed operation and maintenance (O&M) decisions, which not only reduce maintenance costs but also extend the service life of the turbine. At the same time, regulatory requirements—such as those of the Federal Maritime and Hydrographic Agency (BSH)—are efficiently met.
TMD.Tower: Damper for Vibration Reduction at the Tower
Low-frequency vibrations of the entire WTG can cause high stresses on the tower and thus significantly reduce the lifetime of the tower structure. Furthermore, if the vibrations are too high in the assembly state, e.g. the installation of the rotor blades may become impossible or may only be carried out in weather conditions that are very limited in time. Especially resonant vibrations can be reduced (cost-)effectively by our TMD.Tower dampers.
ADD.Sound – Active Damper for Gearbox Tonalitity Reduction
The increasing power of modern wind turbines often leads to an intensification of tonal noises. That issue becomes particularly apparent in practice when rising noise levels interfere with operation and can result in yield losses. Our active damper ADD.Sound reduces tonalities across the entire frequency range. By generating precisely controlled counter-vibrations on the gearbox or in the hub, tonalities are compensated for across the entire speed range – directly at the source. With ADD.Sound, we are technology and market leaders in active damping: For many years, we have successfully reduced the tonalities emitted by the tower and rotor blades, while ensuring compliance with legally mandated noise limits.
