Monitoring of Wind Turbine Structures with Concrete-steel Hybrid-tower Design

This research deals with setting up a monitoring system for the support structure of a 3 MW, onshore wind turbine of concrete-steel hybrid-tower design. Its purpose is to monitor structural dynamics and material strains to detect defects and fatigue and to determine the remaining service life of the wind turbine's support structure. A literature search is conducted to find a suitable sensor configuration. Based on these findings, an adapted data acquisition system is designed and specific sensors are chosen. The monitoring system's design focuses on reliability, because the designated operating time is at least 2.5 years. Remote control and automated data synchronization techniques are therefore implemented. The first version of the monitoring system comprises two accelerometers, one seismometer, and two temperature sensors installed on different tower levels. Data processing and preliminary results such as eigenfrequencies and tower displacement calculated from accelerations are presented.      «

This research deals with setting up a monitoring system for the support structure of a 3 MW, onshore wind turbine of concrete-steel hybrid-tower design. Its purpose is to monitor structural dynamics and material strains to detect defects and fatigue and to determine the remaining service life of the wind turbine's support structure. A literature search is conducted to find a suitable sensor configuration. Based on these findings, an adapted data acquisition system is designed and specific senso...     »