Projects Phase II

Status of all the Phase II CEwind research projects:

University of Applied Sciences, Kiel (1)
Prof. Dr. Alois Schaffarczyk, Faculty of Mechanical Engineering / Laboratory for Computational Mechanics

Aerodynamic glove for measuring the aerodynamic boundary layer on rotating wind turbine blades

Investigation of the flow pattern on a wind turbine blade in operation. Investigation of, inter alia, the following questions: Why is the complete flow not turbulent despite the high oncoming flow turbulence (> 10 %)? How much laminarity (= low friction) still remains?

The necessary measuring equipment is highly complex and was tested by us in a small wind tunnel before a wind turbine rotor blade was fitted with one. Our experiment can be seen as the counterpart to the large "DAN-AERO".
 

University of Applied Sciences Flensburg (2)
Prof. Dr. E. Reimers / Prof. Dr. A. Krapoth

Condition monitoring of wind turbines (Phase II 2008 – 2011)

Condition Monitoring of wind turbines is becoming more and more important for reasons of operational dependability and investment security, especially in the case of offshore wind turbines. This project contributes to improving the significance and reliability of the corresponding measuring and control systems. The core focus of the project is the numerical simulation of the operation of a wind turbine and the verification of this simulation with relevant measurements, and the further development of measuring methods. Both branches of the project, theory and measurement, strengthen and supplement one another.
 

University of Applied Sciences Flensburg (3)
Dr. Hermann van Radecke 

Measurement of natural and induced turbulence in the wake of wind turbines for statements about stability

West Coast University of Applied Sciences (4)
Prof. Dr.-Ing. Reiner Schütt

Active harmonic control for small and medium output decentralised power generation systems for the low and medium voltage grid.

University of Applied Sciences, Kiel (5)
Prof. Dr. Hans-Jürgen Hinrichs

Current harmonics analyser
 

University of Applied Sciences, Kiel (6)
Prof. Dr.-Ing. Klaus Scheibe

CFRP rotor blades and how they behave regarding the effects of lightning
 

Christian Albrechts University, Kiel (7)
Prof. Dr.-Ing. Friedrich Wilhelm Fuchs

Condition monitoring for frequency converters and regulation of generators in wind turbines
 

Christian Albrechts University, Kiel (8)
Prof. Dr.-Ing. Friedrich Wilhelm Fuchs

Grid-adaptive management of operational performance and the active filter functionality of grid pulse rectifiers in wind turbines

 

Christian Albrechts University, Kiel (9)
PD Dr. Ursula Siebert (9)

Development and testing of an air bubble veil for the minimisation of noise from offshore wind turbines in the North and Baltic Seas

High levels of sound are generated under water during the ramming of foundations for offshore wind turbines. These are especially potentially dangerous for the sensitive hearing of marine mammals. Therefore in this project curtains of air bubbles are being investigated in detail as a possibility for reducing noise impact. Air bubble curtains are created on the sea bed around the foundation using perforated plastic hoses arranged as a ring around foundation that are filled with compressed air from compressors. The rising air bubbles reflect and disperse the sound waves produced, thus altering the radiated frequency spectrum and reducing the peak sound level.
 

FTZ Büsum (10)
Dr. Klaus Ricklefs / Prof. Dr. Roberto Mayerle

Investigations into the scouring dynamics on an offshore monopile (Ko-DynaMo)