Experimental – a peak into the control cabinet of the aquatic prototype
Sönke Siegfriedsen , a pioneer of wind power
“ Over 50,000 turbines are in operation in China based on our development work and with our design .”
Sönke Siegfriedsen , aerodyn engineering explains , “ We were already involved in the predecessor project , Nezzy 1 , which was tested in the Sea of Japan .” floating foundation of the wind turbine generator . It is made up of pre-stressed , precast concrete elements , which come together in a horizontal Y shape . This floating foundation aligns itself autonomously using the wind current . In contrast to systems on land , it is not the single nacelles that rotate , but rather the entire above-water system .
The two towers , which are set up at an angle and connected to each other and to the foundation by anchoring cables , are built on this foundation . At the moment , three-bladed rotors are turning , but alternative two-bladed rotors are already waiting to be tested . The system is completed by large yellow floats , which are intended to ensure the stable floating position of the wind turbine on the water surface .
Testing – that ’ s the motto . Nezzy 2 is a research facility . A data collector . More than four million pieces of data are collected in 10 minutes . Every 10 minutes . Timo Kosnieczki , Key Account Manager of the wind team at Phoenix Contact ,
Safely through the cyclone The double-headed system is stable thanks to its innovative tensioning technology . Monitoring during operation is also very important . What happens if a rotor fails ? Or if there are high waves that set the anchor chains in motion or if a hurricane sweeps over the system ? Real-time data , a high degree of automation , extreme reliability – without cuttingedge technology , Nezzy becomes a monster . The PLCnext Engineer software was used right from the start in the development Nezzy 2 . A total of six PLCnext controllers are used in the turbine generator , from the pitch systems right through to the main control cabinet . They record the sensor data , perform calculations , and ensure that the components are controlled correctly . The control and synchronicity of the two turbines is , of course , extremely important .
It ’ s no wonder that our colleagues from the Phoenix Contact wind team are also fascinated .“ For us , it was the first time that we worked on and with a two-turbine generator . That in itself was very exciting . In order to add new functions and optimize the tasks of our automation technology , we exchanged new à
The Phoenix Contact innovation magazine UPDATE 6 / 20 19