Challenges and Solutions for Wind Turbines
Rotor blades in wind turbines are growing longer – but also slower. Multi-megawatt wind turbines will turn even more slowly, so reproducible low-frequency vibration monitoring will gain in importance not only for the main rotor but also for the slow-operating gearbox components and roller bearings. Reliably measuring low frequencies, however, can be rather tricky. This article discusses some of the issues that pose new challenges to sensor and measurement hardware manufacturers and some possible solutions.
By Dr Edwin Becker, Pruftechnik Condition Monitoring GmbH, Germany
